tweaks

backend/Dockerfile

@@ -8,6 +8,8 @@ WORKDIR /app
 RUN addgroup --system app && adduser --system --ingroup app app
 
 COPY backend /app
+COPY ["input_data/1.xlsx", "/app/input_data/1.xlsx"]
+COPY ["Input Cost Spreadsheet(1).xlsx", "/app/Input Cost Spreadsheet(1).xlsx"]
 
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir . && \

backend/app/api/access.py

@@ -109,15 +109,11 @@ def _serialize_session(user: User, *, include_token: bool = False) -> UserSessio
 def login(payload: LoginRequest, response: Response, request: Request, db: Session = Depends(get_db)):
     """Internal-user login.
 
-    Authenticates against a shared internal password (``ADMIN_PASSWORD``) and
-    looks up the user by email. Inactive or unknown users are rejected with
-    a generic 401 to avoid leaking which emails are valid.
+    Authenticates against the per-user password hash stored on ``users``.
+    Inactive or unknown users are rejected with a generic 401 to avoid
+    leaking which emails are valid.
     """
     login_rate_limiter.hit(request_client_key(request, suffix="internal-login"))
-    if payload.password != settings.admin_password:
-        log_security_event("auth.login_failed", audience="internal", ip=request_client_key(request))
-        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid email or password")
-
     email = payload.email.strip().lower()
     user = db.scalar(
         select(User)
@@ -127,6 +123,12 @@ def login(payload: LoginRequest, response: Response, request: Request, db: Sessi
     if user is None or not user.is_active:
         log_security_event("auth.login_failed", audience="internal", ip=request_client_key(request))
         raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid email or password")
+    if not (
+        verify_password(payload.password, user.password_hash)
+        or (user.password_hash is None and payload.password == settings.admin_password)
+    ):
+        log_security_event("auth.login_failed", audience="internal", ip=request_client_key(request))
+        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid email or password")
 
     session = _serialize_session(user, include_token=True)
     if session.token:
@@ -161,13 +163,11 @@ def update_me(
 ):
     """Allow an internal user to update their own name, email, or password."""
     if payload.new_password:
-        # Require current password verification before allowing a password change.
-        # Users who have never set a personal password must supply the shared
-        # admin password as the current credential.
-        current_ok = (
-            verify_password(payload.current_password or "", user.password_hash)
-            if user.password_hash
-            else (payload.current_password or "") == settings.admin_password
+        # Require current password verification before allowing a password
+        # change. Keep a narrow fallback for legacy rows that still have no
+        # password hash yet.
+        current_ok = verify_password(payload.current_password or "", user.password_hash) or (
+            user.password_hash is None and (payload.current_password or "") == settings.admin_password
         )
         if not current_ok:
             raise HTTPException(

backend/app/api/mix_calculator.py

@@ -22,7 +22,7 @@ from app.services.mix_calculator_service import (
     update_mix_calculator_session,
 )
 from app.services.mix_calculator_pdf import MixCalculatorPdfUnavailableError, build_mix_calculator_pdf
-from app.services.mix_calculator_filenames import mix_calculator_pdf_filename
+from app.services.mix_calculator_filenames import mix_calculator_pdf_filename, mix_calculator_preview_pdf_filename
 
 router = APIRouter(prefix="/api/mix-calculator", tags=["mix-calculator"])
 
@@ -56,6 +56,28 @@ def preview_mix_calculator_session(
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(exc)) from exc
 
 
+@router.post("/preview/pdf")
+def preview_mix_calculator_session_pdf(
+    payload: MixCalculatorSessionCreate,
+    session: AuthSession = Depends(require_client_module_access("mix_calculator", "edit")),
+    db: Session = Depends(get_db),
+):
+    try:
+        preview = calculate_mix_calculator_preview(db, tenant_id=session.tenant_id or "", payload=payload)
+        pdf_bytes = build_mix_calculator_pdf(preview)
+    except ValueError as exc:
+        raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(exc)) from exc
+    except MixCalculatorPdfUnavailableError as exc:
+        raise HTTPException(status_code=status.HTTP_503_SERVICE_UNAVAILABLE, detail=str(exc)) from exc
+
+    filename = mix_calculator_preview_pdf_filename(MixCalculatorPreviewRead.model_validate(preview))
+    return Response(
+        content=pdf_bytes,
+        media_type="application/pdf",
+        headers={"Content-Disposition": f'attachment; filename="{filename}"'},
+    )
+
+
 @router.post("", response_model=MixCalculatorSessionRead, status_code=status.HTTP_201_CREATED)
 def create_saved_mix_calculator_session(
     payload: MixCalculatorSessionCreate,

backend/app/api/throughput.py

@@ -0,0 +1,245 @@
+from __future__ import annotations
+
+from datetime import date
+
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.api.deps import AuthSession, require_client_module_access
+from app.db.session import get_db
+from app.models.throughput import ProductionThroughput, ThroughputProduct
+from app.schemas.throughput import (
+    ThroughputEntryCreate,
+    ThroughputEntryRead,
+    ThroughputEntryUpdate,
+    ThroughputProductCreate,
+    ThroughputProductRead,
+    ThroughputProductUpdate,
+)
+from app.services.throughput_service import (
+    calculate_kg,
+    normalise_staff_name,
+    serialize_entry,
+)
+
+router = APIRouter(prefix="/api/throughput", tags=["operations-throughput"])
+
+MODULE_KEY = "operations_throughput"
+
+
+@router.get("/products", response_model=list[ThroughputProductRead])
+def list_products(
+    include_inactive: bool = Query(default=False),
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY)),
+    db: Session = Depends(get_db),
+):
+    stmt = select(ThroughputProduct).where(ThroughputProduct.tenant_id == session.tenant_id)
+    if not include_inactive:
+        stmt = stmt.where(ThroughputProduct.active.is_(True))
+    stmt = stmt.order_by(ThroughputProduct.name)
+    return db.scalars(stmt).all()
+
+
+@router.post("/products", response_model=ThroughputProductRead, status_code=status.HTTP_201_CREATED)
+def create_product(
+    payload: ThroughputProductCreate,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY, "edit")),
+    db: Session = Depends(get_db),
+):
+    if payload.item_id:
+        existing = db.scalar(
+            select(ThroughputProduct).where(
+                ThroughputProduct.tenant_id == session.tenant_id,
+                ThroughputProduct.item_id == payload.item_id,
+            )
+        )
+        if existing is not None:
+            raise HTTPException(status_code=409, detail="A product with this item_id already exists")
+
+    product = ThroughputProduct(
+        tenant_id=session.tenant_id,
+        item_id=payload.item_id,
+        name=payload.name,
+        default_bag_size=payload.default_bag_size,
+        is_bulka_default=payload.is_bulka_default,
+        active=payload.active,
+        is_stock_item=payload.is_stock_item,
+        notes=payload.notes,
+    )
+    db.add(product)
+    db.commit()
+    db.refresh(product)
+    return product
+
+
+@router.patch("/products/{product_id}", response_model=ThroughputProductRead)
+def update_product(
+    product_id: int,
+    payload: ThroughputProductUpdate,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY, "edit")),
+    db: Session = Depends(get_db),
+):
+    product = db.scalar(
+        select(ThroughputProduct).where(
+            ThroughputProduct.id == product_id,
+            ThroughputProduct.tenant_id == session.tenant_id,
+        )
+    )
+    if product is None:
+        raise HTTPException(status_code=404, detail="Product not found")
+    for field, value in payload.model_dump(exclude_unset=True).items():
+        setattr(product, field, value)
+    db.commit()
+    db.refresh(product)
+    return product
+
+
+@router.get("/entries", response_model=list[ThroughputEntryRead])
+def list_entries(
+    date_from: date | None = Query(default=None),
+    date_to: date | None = Query(default=None),
+    product_id: int | None = Query(default=None),
+    staff_name: str | None = Query(default=None),
+    quantity_type: str | None = Query(default=None),
+    limit: int = Query(default=200, ge=1, le=1000),
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY)),
+    db: Session = Depends(get_db),
+):
+    stmt = select(ProductionThroughput).where(ProductionThroughput.tenant_id == session.tenant_id)
+    if date_from is not None:
+        stmt = stmt.where(ProductionThroughput.production_date >= date_from)
+    if date_to is not None:
+        stmt = stmt.where(ProductionThroughput.production_date <= date_to)
+    if product_id is not None:
+        stmt = stmt.where(ProductionThroughput.product_id == product_id)
+    if staff_name:
+        stmt = stmt.where(ProductionThroughput.staff_name == staff_name.strip())
+    if quantity_type in {"bags", "kg"}:
+        stmt = stmt.where(ProductionThroughput.quantity_type == quantity_type)
+    stmt = stmt.order_by(ProductionThroughput.production_date.desc(), ProductionThroughput.id.desc()).limit(limit)
+    return [serialize_entry(entry) for entry in db.scalars(stmt).all()]
+
+
+@router.post("/entries", response_model=ThroughputEntryRead, status_code=status.HTTP_201_CREATED)
+def create_entry(
+    payload: ThroughputEntryCreate,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY, "edit")),
+    db: Session = Depends(get_db),
+):
+    product = None
+    if payload.product_id is not None:
+        product = db.scalar(
+            select(ThroughputProduct).where(
+                ThroughputProduct.id == payload.product_id,
+                ThroughputProduct.tenant_id == session.tenant_id,
+            )
+        )
+        if product is None:
+            raise HTTPException(status_code=400, detail="product_id does not match an existing product")
+
+    snapshot = payload.product_name_snapshot or (product.name if product else None)
+    if not snapshot:
+        raise HTTPException(status_code=400, detail="product_name_snapshot or product_id is required")
+
+    bag_size = payload.bag_size
+    if bag_size is None and product is not None:
+        bag_size = product.default_bag_size
+
+    if payload.quantity_type == "bags" and (bag_size is None or bag_size <= 0):
+        raise HTTPException(status_code=400, detail="bag_size is required when quantity_type is 'bags'")
+
+    calculated = calculate_kg(payload.quantity, payload.quantity_type, bag_size)
+
+    entry = ProductionThroughput(
+        tenant_id=session.tenant_id,
+        production_date=payload.production_date,
+        product_id=product.id if product else None,
+        product_name_snapshot=snapshot,
+        bag_size=bag_size,
+        scales_checked=payload.scales_checked,
+        label_correct=payload.label_correct,
+        bag_sealed=payload.bag_sealed,
+        pallet_good_condition=payload.pallet_good_condition,
+        sample_box_no=payload.sample_box_no,
+        test_weight_1=payload.test_weight_1,
+        test_weight_2=payload.test_weight_2,
+        test_weight_3=payload.test_weight_3,
+        test_weight_4=payload.test_weight_4,
+        test_weight_5=payload.test_weight_5,
+        quantity=payload.quantity,
+        quantity_type=payload.quantity_type,
+        calculated_kg=calculated,
+        staff_name=normalise_staff_name(payload.staff_name),
+        notes=payload.notes,
+        created_by=session.email,
+    )
+    db.add(entry)
+    db.commit()
+    db.refresh(entry)
+    return serialize_entry(entry)
+
+
+@router.get("/entries/{entry_id}", response_model=ThroughputEntryRead)
+def get_entry(
+    entry_id: int,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY)),
+    db: Session = Depends(get_db),
+):
+    entry = db.scalar(
+        select(ProductionThroughput).where(
+            ProductionThroughput.id == entry_id,
+            ProductionThroughput.tenant_id == session.tenant_id,
+        )
+    )
+    if entry is None:
+        raise HTTPException(status_code=404, detail="Entry not found")
+    return serialize_entry(entry)
+
+
+@router.patch("/entries/{entry_id}", response_model=ThroughputEntryRead)
+def update_entry(
+    entry_id: int,
+    payload: ThroughputEntryUpdate,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY, "edit")),
+    db: Session = Depends(get_db),
+):
+    entry = db.scalar(
+        select(ProductionThroughput).where(
+            ProductionThroughput.id == entry_id,
+            ProductionThroughput.tenant_id == session.tenant_id,
+        )
+    )
+    if entry is None:
+        raise HTTPException(status_code=404, detail="Entry not found")
+
+    data = payload.model_dump(exclude_unset=True)
+    if "staff_name" in data:
+        data["staff_name"] = normalise_staff_name(data["staff_name"])
+    for field, value in data.items():
+        setattr(entry, field, value)
+
+    entry.calculated_kg = calculate_kg(entry.quantity, entry.quantity_type, entry.bag_size)
+
+    db.commit()
+    db.refresh(entry)
+    return serialize_entry(entry)
+
+
+@router.delete("/entries/{entry_id}", status_code=status.HTTP_204_NO_CONTENT)
+def delete_entry(
+    entry_id: int,
+    session: AuthSession = Depends(require_client_module_access(MODULE_KEY, "manage")),
+    db: Session = Depends(get_db),
+):
+    entry = db.scalar(
+        select(ProductionThroughput).where(
+            ProductionThroughput.id == entry_id,
+            ProductionThroughput.tenant_id == session.tenant_id,
+        )
+    )
+    if entry is None:
+        raise HTTPException(status_code=404, detail="Entry not found")
+    db.delete(entry)
+    db.commit()
+    return None

backend/app/core/access.py

@@ -51,6 +51,8 @@ _PERMISSION_TO_MODULE_LEVEL: dict[str, tuple[str, str]] = {
     "edit_products": ("products", "edit"),
     "view_mixes": ("mix_master", "view"),
     "edit_mixes": ("mix_master", "edit"),
+    "view_throughput": ("operations_throughput", "view"),
+    "edit_throughput": ("operations_throughput", "edit"),
     # Admin-only permissions (view_users, manage_users, manage_permissions,
     # view_settings, edit_settings) are intentionally excluded — they don't
     # correspond to any of the legacy module keys and remain accessible only

backend/app/core/config.py

@@ -1,5 +1,10 @@
 import os
 from dataclasses import dataclass
+from pathlib import Path
+
+
+DEFAULT_SQLITE_PATH = (Path(__file__).resolve().parents[2] / "data_entry_app.db").as_posix()
+DEFAULT_DATABASE_URL = f"sqlite:///{DEFAULT_SQLITE_PATH}"
 
 
 DEFAULT_CORS_ALLOW_ORIGIN_REGEX = (
@@ -63,7 +68,10 @@ class Settings:
             port=int(os.getenv("PORT", "8000")),
             log_level=os.getenv("LOG_LEVEL", "DEBUG" if os.getenv("LOG_VERBOSE") in {"1", "true", "TRUE", "yes", "on"} else "INFO"),
             log_verbose=_env_flag("LOG_VERBOSE"),
-            database_url=os.getenv("DATABASE_URL", "sqlite:///./data_entry_app.db"),
+            # Keep the default SQLite location stable regardless of the current
+            # working directory so local dev does not silently fork data into
+            # multiple `data_entry_app.db` files.
+            database_url=os.getenv("DATABASE_URL", DEFAULT_DATABASE_URL),
             client_name=os.getenv("CLIENT_NAME", "Hunter Premium Produce"),
             client_email=os.getenv("CLIENT_EMAIL", "operator@example.com"),
             client_password=os.getenv("CLIENT_PASSWORD", "changeme"),

backend/app/db/migrations.py

@@ -25,6 +25,7 @@ TENANT_TABLES = {
     "raw_material_price_versions": None,
     "mixes": None,
     "mix_ingredients": None,
+    "product_ingredients": None,
     "mix_calculator_sessions": None,
     "mix_calculator_session_lines": None,
     "products": None,
@@ -33,6 +34,8 @@ TENANT_TABLES = {
     "process_cost_rules": None,
     "packaging_cost_rules": None,
     "freight_cost_rules": None,
+    "throughput_products": None,
+    "production_throughput_entries": None,
 }
 
 
@@ -99,6 +102,7 @@ def ensure_tenant_columns(engine: Engine) -> tuple[str, ...]:
 _LEGACY_COLUMN_PATCHES: tuple[tuple[str, str, str], ...] = (
     ("users", "password_hash", "VARCHAR(255)"),
     ("products", "visible", "BOOLEAN NOT NULL DEFAULT TRUE"),
+    ("throughput_products", "is_stock_item", "BOOLEAN NOT NULL DEFAULT TRUE"),
 )
 
 
@@ -243,6 +247,20 @@ def sync_tenant_ids(engine: Engine) -> dict[str, int]:
                 """
                 ),
             ),
+            (
+                "product_ingredients",
+                text(
+                """
+                UPDATE product_ingredients
+                SET tenant_id = (
+                    SELECT products.tenant_id
+                    FROM products
+                    WHERE products.id = product_ingredients.product_id
+                )
+                WHERE tenant_id IS NULL OR tenant_id = '' OR tenant_id = 'default'
+                """
+                ),
+            ),
             (
                 "products",
                 text(

backend/app/main.py

@@ -28,6 +28,7 @@ from app.api.powerbi import router as powerbi_router
 from app.api.products import router as products_router
 from app.api.raw_materials import router as raw_materials_router
 from app.api.scenarios import router as scenarios_router
+from app.api.throughput import router as throughput_router
 from app.core.config import settings
 from app.core.logging import (
     LoggingSettings,
@@ -46,7 +47,7 @@ from app.core.logging import (
 )
 from app.db.session import Base, engine
 from app.db.migrations import MigrationReport, bootstrap_schema, sync_product_visibility, sync_tenant_ids
-from app.seed import seed_if_empty
+from app.seed import seed_startup_basics
 
 
 def _resolve_version() -> str:
@@ -100,7 +101,7 @@ def ensure_database_ready() -> MigrationReport:
             return MigrationReport()
 
         schema_report = bootstrap_schema(engine, Base.metadata)
-        seed_if_empty()
+        seed_startup_basics()
         tenant_sync_report = sync_tenant_ids(engine)
         hidden_product_count = sync_product_visibility(engine)
 
@@ -153,7 +154,10 @@ async def lifespan(app: FastAPI):
 
     section_heading("Services")
     success("HTTP API ready")
-    info("Docs available at /docs", logger_name="data_entry_app.services")
+    if settings.docs_enabled:
+        info("Docs available at /docs", logger_name="data_entry_app.services")
+    else:
+        info("Docs disabled in this environment", logger_name="data_entry_app.services")
     info("Health probe available at /health", logger_name="data_entry_app.services")
 
     yield
@@ -195,6 +199,7 @@ app.include_router(mixes_router)
 app.include_router(mix_calculator_router)
 app.include_router(products_router)
 app.include_router(scenarios_router)
+app.include_router(throughput_router)
 app.include_router(powerbi_router)
 
 
@@ -300,6 +305,7 @@ def root():
             "mix_calculator": "/api/mix-calculator",
             "products": "/api/products",
             "scenarios": "/api/scenarios",
+            "operations_throughput": "/api/throughput",
             "client_access": "/api/client-access",
             "docs": "/docs",
         },

backend/app/models/__init__.py

@@ -3,9 +3,10 @@ from app.models.assumption import FreightCostRule, PackagingCostRule, ProcessCos
 from app.models.client_access import ClientAccessAuditEvent, ClientAccount, ClientFeatureAccess, ClientUser, ClientUserModulePermission
 from app.models.mix_calculator import MixCalculatorSession, MixCalculatorSessionLine
 from app.models.mix import Mix, MixIngredient
-from app.models.product import Product
+from app.models.product import Product, ProductIngredient
 from app.models.raw_material import RawMaterial, RawMaterialPriceVersion
 from app.models.scenario import CostingResult, Scenario
+from app.models.throughput import ProductionThroughput, ThroughputProduct
 
 __all__ = [
     "ClientAccount",
@@ -23,6 +24,9 @@ __all__ = [
     "Permission",
     "ProcessCostRule",
     "Product",
+    "ProductIngredient",
+    "ProductionThroughput",
+    "ThroughputProduct",
     "RawMaterial",
     "RawMaterialPriceVersion",
     "Role",

backend/app/models/product.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 from datetime import datetime
 
-from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Integer, String, Text
+from sqlalchemy import Boolean, DateTime, Float, ForeignKey, Integer, String, Text, UniqueConstraint
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from app.db.session import Base
@@ -29,6 +29,28 @@ class Product(Base):
     created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
 
     mix: Mapped["Mix"] = relationship(back_populates="products")
+    ingredients: Mapped[list["ProductIngredient"]] = relationship(
+        back_populates="product",
+        cascade="all, delete-orphan",
+        order_by="ProductIngredient.sort_order",
+    )
+
+
+class ProductIngredient(Base):
+    __tablename__ = "product_ingredients"
+    __table_args__ = (UniqueConstraint("product_id", "raw_material_id", name="uq_product_ingredient"),)
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    tenant_id: Mapped[str] = mapped_column(String(64), default="default", index=True)
+    product_id: Mapped[int] = mapped_column(ForeignKey("products.id"), index=True)
+    raw_material_id: Mapped[int] = mapped_column(ForeignKey("raw_materials.id"), index=True)
+    quantity_kg: Mapped[float] = mapped_column(Float)
+    sort_order: Mapped[int] = mapped_column(Integer, default=0)
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+
+    product: Mapped[Product] = relationship(back_populates="ingredients")
+    raw_material: Mapped["RawMaterial"] = relationship()
 
 
 from app.models.mix import Mix  # noqa: E402
+from app.models.raw_material import RawMaterial  # noqa: E402

backend/app/models/throughput.py

@@ -0,0 +1,70 @@
+from __future__ import annotations
+
+from datetime import date, datetime
+
+from sqlalchemy import Boolean, Date, DateTime, Float, ForeignKey, Index, Integer, String, Text
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.session import Base
+
+
+class ThroughputProduct(Base):
+    __tablename__ = "throughput_products"
+    __table_args__ = (
+        Index("ix_throughput_products_tenant_item", "tenant_id", "item_id", unique=True),
+        Index("ix_throughput_products_tenant_name", "tenant_id", "name"),
+    )
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    tenant_id: Mapped[str] = mapped_column(String(64), default="default", index=True)
+    item_id: Mapped[str | None] = mapped_column(String(64), nullable=True)
+    name: Mapped[str] = mapped_column(String(255))
+    default_bag_size: Mapped[float | None] = mapped_column(Float, nullable=True)
+    is_bulka_default: Mapped[bool] = mapped_column(Boolean, default=False)
+    active: Mapped[bool] = mapped_column(Boolean, default=True)
+    is_stock_item: Mapped[bool] = mapped_column(Boolean, default=True)
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    entries: Mapped[list["ProductionThroughput"]] = relationship(back_populates="product")
+
+
+class ProductionThroughput(Base):
+    __tablename__ = "production_throughput_entries"
+    __table_args__ = (
+        Index("ix_throughput_entries_tenant_date", "tenant_id", "production_date"),
+    )
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    tenant_id: Mapped[str] = mapped_column(String(64), default="default", index=True)
+    production_date: Mapped[date] = mapped_column(Date)
+    product_id: Mapped[int | None] = mapped_column(ForeignKey("throughput_products.id"), nullable=True, index=True)
+    product_name_snapshot: Mapped[str] = mapped_column(String(255))
+    bag_size: Mapped[float | None] = mapped_column(Float, nullable=True)
+
+    scales_checked: Mapped[bool] = mapped_column(Boolean, default=True)
+    label_correct: Mapped[bool] = mapped_column(Boolean, default=True)
+    bag_sealed: Mapped[bool] = mapped_column(Boolean, default=True)
+    pallet_good_condition: Mapped[bool] = mapped_column(Boolean, default=True)
+
+    sample_box_no: Mapped[str | None] = mapped_column(String(64), nullable=True)
+
+    test_weight_1: Mapped[float | None] = mapped_column(Float, nullable=True)
+    test_weight_2: Mapped[float | None] = mapped_column(Float, nullable=True)
+    test_weight_3: Mapped[float | None] = mapped_column(Float, nullable=True)
+    test_weight_4: Mapped[float | None] = mapped_column(Float, nullable=True)
+    test_weight_5: Mapped[float | None] = mapped_column(Float, nullable=True)
+
+    quantity: Mapped[float] = mapped_column(Float, default=0.0)
+    quantity_type: Mapped[str] = mapped_column(String(8), default="bags")
+    calculated_kg: Mapped[float] = mapped_column(Float, default=0.0)
+
+    staff_name: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    notes: Mapped[str | None] = mapped_column(Text, nullable=True)
+
+    created_by: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    product: Mapped[ThroughputProduct | None] = relationship(back_populates="entries")

backend/app/schemas/throughput.py

@@ -0,0 +1,128 @@
+from __future__ import annotations
+
+from datetime import date, datetime
+from typing import Literal
+
+from pydantic import BaseModel, ConfigDict, Field, field_validator
+
+
+QuantityType = Literal["bags", "kg"]
+
+
+class ThroughputProductBase(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+    item_id: str | None = Field(default=None, max_length=64)
+    name: str = Field(min_length=1, max_length=255)
+    default_bag_size: float | None = Field(default=None, ge=0)
+    is_bulka_default: bool = False
+    active: bool = True
+    is_stock_item: bool = True
+    notes: str | None = Field(default=None, max_length=2000)
+
+
+class ThroughputProductCreate(ThroughputProductBase):
+    pass
+
+
+class ThroughputProductUpdate(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+    item_id: str | None = Field(default=None, max_length=64)
+    name: str | None = Field(default=None, min_length=1, max_length=255)
+    default_bag_size: float | None = Field(default=None, ge=0)
+    is_bulka_default: bool | None = None
+    active: bool | None = None
+    is_stock_item: bool | None = None
+    notes: str | None = Field(default=None, max_length=2000)
+
+
+class ThroughputProductRead(ThroughputProductBase):
+    id: int
+    tenant_id: str
+    created_at: datetime
+    updated_at: datetime
+    model_config = ConfigDict(from_attributes=True)
+
+
+class ThroughputEntryBase(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+    production_date: date
+    product_id: int | None = None
+    product_name_snapshot: str | None = Field(default=None, max_length=255)
+    bag_size: float | None = Field(default=None, ge=0)
+    scales_checked: bool = True
+    label_correct: bool = True
+    bag_sealed: bool = True
+    pallet_good_condition: bool = True
+    sample_box_no: str | None = Field(default=None, max_length=64)
+    test_weight_1: float | None = Field(default=None, ge=0)
+    test_weight_2: float | None = Field(default=None, ge=0)
+    test_weight_3: float | None = Field(default=None, ge=0)
+    test_weight_4: float | None = Field(default=None, ge=0)
+    test_weight_5: float | None = Field(default=None, ge=0)
+    quantity: float = Field(ge=0)
+    quantity_type: QuantityType = "bags"
+    staff_name: str | None = Field(default=None, max_length=255)
+    notes: str | None = Field(default=None, max_length=2000)
+
+    @field_validator("staff_name")
+    @classmethod
+    def _normalize_staff(cls, value: str | None) -> str | None:
+        if value is None:
+            return None
+        stripped = value.strip()
+        return stripped or None
+
+
+class ThroughputEntryCreate(ThroughputEntryBase):
+    pass
+
+
+class ThroughputEntryUpdate(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+    production_date: date | None = None
+    product_id: int | None = None
+    product_name_snapshot: str | None = Field(default=None, max_length=255)
+    bag_size: float | None = Field(default=None, ge=0)
+    scales_checked: bool | None = None
+    label_correct: bool | None = None
+    bag_sealed: bool | None = None
+    pallet_good_condition: bool | None = None
+    sample_box_no: str | None = Field(default=None, max_length=64)
+    test_weight_1: float | None = Field(default=None, ge=0)
+    test_weight_2: float | None = Field(default=None, ge=0)
+    test_weight_3: float | None = Field(default=None, ge=0)
+    test_weight_4: float | None = Field(default=None, ge=0)
+    test_weight_5: float | None = Field(default=None, ge=0)
+    quantity: float | None = Field(default=None, ge=0)
+    quantity_type: QuantityType | None = None
+    staff_name: str | None = Field(default=None, max_length=255)
+    notes: str | None = Field(default=None, max_length=2000)
+
+
+class ThroughputEntryRead(BaseModel):
+    id: int
+    tenant_id: str
+    production_date: date
+    product_id: int | None
+    product_name_snapshot: str
+    bag_size: float | None
+    scales_checked: bool
+    label_correct: bool
+    bag_sealed: bool
+    pallet_good_condition: bool
+    sample_box_no: str | None
+    test_weight_1: float | None
+    test_weight_2: float | None
+    test_weight_3: float | None
+    test_weight_4: float | None
+    test_weight_5: float | None
+    quantity: float
+    quantity_type: QuantityType
+    calculated_kg: float
+    staff_name: str | None
+    notes: str | None
+    qa_passed: bool
+    created_by: str | None
+    created_at: datetime
+    updated_at: datetime
+    model_config = ConfigDict(from_attributes=True)

backend/app/seed.py

@@ -9,21 +9,26 @@ import re
 
 from openpyxl import load_workbook
 from sqlalchemy import select
+from sqlalchemy.orm import selectinload
 
 from app.db.session import Base, SessionLocal, engine
 from app.models.assumption import FreightCostRule, PackagingCostRule, ProcessCostRule
 from app.models.client_access import ClientAccessAuditEvent, ClientAccount, ClientFeatureAccess, ClientUser, ClientUserModulePermission
 from app.models.mix import Mix, MixIngredient
-from app.models.product import Product
+from app.models.product import Product, ProductIngredient
 from app.models.raw_material import RawMaterial, RawMaterialPriceVersion
+from app.models.throughput import ProductionThroughput, ThroughputProduct
 from app.seed_access import seed_access
 from app.services.client_access_service import MODULE_CATALOG, default_access_level_for_role
+from app.services.throughput_service import import_workbook as import_throughput_workbook
+from app.services.throughput_service import resolve_workbook_path as resolve_throughput_workbook_path
 
 
 TENANT_ID = "hunter-premium-produce"
 WORKBOOK_EFFECTIVE_DATE = date(2025, 9, 1)
 WORKBOOK_SENTINEL_ITEM_ID = "404266"
-WORKBOOK_FILENAME = "Input Cost Spreadsheet(1).xlsx"
+WORKBOOK_FILENAME = "1.xlsx"
+LEGACY_WORKBOOK_FILENAME = "Input Cost Spreadsheet(1).xlsx"
 logger = logging.getLogger("data_entry_app.seed")
 HIDDEN_PRODUCT_CLIENTS = frozenset(
     {
@@ -46,11 +51,18 @@ def _workbook_candidates() -> list[Path]:
 
     candidates = [
         Path(env_path) if env_path else None,
+        repo_root / "input_data" / WORKBOOK_FILENAME,
+        cwd / "input_data" / WORKBOOK_FILENAME,
         Path("/srv/lean101-clients") / WORKBOOK_FILENAME,
         repo_root / WORKBOOK_FILENAME,
         cwd / WORKBOOK_FILENAME,
         Path("/app") / WORKBOOK_FILENAME,
         Path("/") / WORKBOOK_FILENAME,
+        repo_root / LEGACY_WORKBOOK_FILENAME,
+        cwd / LEGACY_WORKBOOK_FILENAME,
+        Path("/srv/lean101-clients") / LEGACY_WORKBOOK_FILENAME,
+        Path("/app") / LEGACY_WORKBOOK_FILENAME,
+        Path("/") / LEGACY_WORKBOOK_FILENAME,
     ]
 
     ordered: list[Path] = []
@@ -73,9 +85,6 @@ def _resolve_workbook_path() -> Path:
     return _workbook_candidates()[0]
 
 
-WORKBOOK_PATH = _resolve_workbook_path()
-
-
 def _text(value) -> str | None:
     if value is None:
         return None
@@ -178,7 +187,21 @@ def _build_process_key(label, grading_cost: float, bagging_cost: float, cracking
     return f"{base}_g{int(round(grading_cost * 1000))}_b{int(round(bagging_cost * 1000))}_c{int(round(cracking_cost * 1000))}"
 
 
-def _load_workbook():
+def _load_workbook(*required_sheets: str):
+    for candidate in _workbook_candidates():
+        if not candidate.exists():
+            continue
+        workbook = load_workbook(candidate, data_only=True)
+        if all(sheet_name in workbook.sheetnames for sheet_name in required_sheets):
+            return workbook
+
+    if required_sheets:
+        raise FileNotFoundError(
+            "No workbook with required sheets found. "
+            f"Required sheets: {', '.join(required_sheets)}. "
+            f"Checked: {', '.join(str(path) for path in _workbook_candidates())}"
+        )
+
     workbook_path = _resolve_workbook_path()
     if not workbook_path.exists():
         raise FileNotFoundError(
@@ -258,6 +281,44 @@ def _read_mix_rows(workbook) -> dict[tuple[str, str], dict]:
     return best_rows
 
 
+def _read_product_ingredient_rows(workbook) -> dict[tuple[str, str], dict]:
+    worksheet = workbook["mix_quantites_per_client_per_pr"]
+    header_row = next(worksheet.iter_rows(min_row=1, max_row=1, values_only=True))
+    ingredient_names = [_text(value) for value in header_row[3:] if _text(value)]
+    rows: dict[tuple[str, str], dict] = {}
+
+    for row in worksheet.iter_rows(min_row=2, values_only=True):
+        client_name = _text(row[0])
+        product_name = _text(row[1])
+        if not client_name or not product_name:
+            continue
+
+        ingredients = []
+        for sort_order, (ingredient_name, quantity) in enumerate(zip(ingredient_names, row[3 : 3 + len(ingredient_names)]), start=1):
+            numeric_quantity = _number(quantity)
+            if ingredient_name and numeric_quantity and numeric_quantity > 0:
+                ingredients.append(
+                    {
+                        "raw_material_name": ingredient_name,
+                        "quantity_kg": numeric_quantity,
+                        "sort_order": sort_order,
+                    }
+                )
+
+        if not ingredients:
+            continue
+
+        total_kg = _number(row[2]) or round(sum(item["quantity_kg"] for item in ingredients), 4)
+        rows[(client_name, product_name)] = {
+            "client_name": client_name,
+            "product_name": product_name,
+            "total_kg": total_kg,
+            "ingredients": ingredients,
+        }
+
+    return rows
+
+
 def _read_product_rows(workbook) -> list[dict]:
     worksheet = workbook["Product Cost - Price"]
     raw_rows: list[dict] = []
@@ -606,6 +667,184 @@ def _upsert_products(db, products: list[dict], mix_lookup: dict[tuple[str, str],
             product.notes = "Seeded from Input Cost Spreadsheet(1).xlsx"
 
 
+def _upsert_product_ingredients(
+    db,
+    *,
+    product_rows: list[dict],
+    product_ingredient_rows: dict[tuple[str, str], dict],
+    raw_material_map: dict[str, RawMaterial],
+) -> None:
+    products = db.scalars(
+        select(Product).where(Product.tenant_id == TENANT_ID).options(selectinload(Product.mix))
+    ).all()
+
+    products_by_formula_key: dict[tuple[str, str], list[Product]] = {}
+    for product in products:
+        candidate_keys = {
+            (product.client_name, product.name),
+        }
+        if product.mix is not None:
+            candidate_keys.add((product.client_name, product.mix.name))
+        for key in candidate_keys:
+            products_by_formula_key.setdefault(key, []).append(product)
+
+    for key, formula in product_ingredient_rows.items():
+        matched_products = products_by_formula_key.get(key, [])
+        if not matched_products:
+            continue
+
+        for product in matched_products:
+            existing_ingredients = {
+                ingredient.raw_material_id: ingredient
+                for ingredient in db.scalars(select(ProductIngredient).where(ProductIngredient.product_id == product.id)).all()
+            }
+            desired_ids: set[int] = set()
+
+            for row in formula["ingredients"]:
+                raw_material = raw_material_map.get(row["raw_material_name"])
+                if raw_material is None:
+                    continue
+
+                desired_ids.add(raw_material.id)
+                ingredient = existing_ingredients.get(raw_material.id)
+                if ingredient is None:
+                    db.add(
+                        ProductIngredient(
+                            tenant_id=TENANT_ID,
+                            product_id=product.id,
+                            raw_material_id=raw_material.id,
+                            quantity_kg=row["quantity_kg"],
+                            sort_order=row["sort_order"],
+                        )
+                    )
+                else:
+                    ingredient.quantity_kg = row["quantity_kg"]
+                    ingredient.sort_order = row["sort_order"]
+
+            for raw_material_id, ingredient in existing_ingredients.items():
+                if raw_material_id not in desired_ids:
+                    db.delete(ingredient)
+
+
+def _infer_throughput_bag_size(product: Product) -> float | None:
+    if product.sale_type == "bulka":
+        return None
+    unit = (product.unit_of_measure or "").strip().lower()
+    match = re.search(r"(\d+(?:\.\d+)?)\s*kg", unit)
+    if match:
+        return float(match.group(1))
+    if unit == "kg":
+        return 1.0
+    if unit == "tonne":
+        return 1000.0
+    return None
+
+
+def _infer_throughput_bulka_default(product: Product) -> bool:
+    unit = (product.unit_of_measure or "").lower()
+    return product.sale_type == "bulka" or "bulka" in product.name.lower() or "bulka" in unit
+
+
+def seed_throughput_products_from_costing(db) -> dict[str, int]:
+    """Mirror costing products into the throughput product dropdown."""
+    costing_products = db.scalars(
+        select(Product)
+        .where(Product.tenant_id == TENANT_ID)
+        .order_by(Product.name, Product.id)
+    ).all()
+    if not costing_products:
+        return {"created": 0, "updated": 0, "skipped": 0}
+
+    throughput_products = db.scalars(
+        select(ThroughputProduct).where(ThroughputProduct.tenant_id == TENANT_ID)
+    ).all()
+    by_item = {
+        throughput_product.item_id: throughput_product
+        for throughput_product in throughput_products
+        if throughput_product.item_id
+    }
+    by_name = {
+        throughput_product.name.strip().lower(): throughput_product
+        for throughput_product in throughput_products
+        if throughput_product.name
+    }
+
+    created = 0
+    updated = 0
+    skipped = 0
+    seen_item_ids: set[str] = set()
+    seen_names: set[str] = set()
+    for costing_product in costing_products:
+        name = (costing_product.name or "").strip()
+        if not name:
+            skipped += 1
+            continue
+
+        item_id = (costing_product.item_id or "").strip() or None
+        name_key = name.lower()
+        if item_id and item_id in seen_item_ids:
+            skipped += 1
+            continue
+        if not item_id and name_key in seen_names:
+            skipped += 1
+            continue
+        if item_id:
+            seen_item_ids.add(item_id)
+        seen_names.add(name_key)
+
+        default_bag_size = _infer_throughput_bag_size(costing_product)
+        is_bulka_default = _infer_throughput_bulka_default(costing_product)
+        product = (by_item.get(item_id) if item_id else None) or by_name.get(name_key)
+        if product is None:
+            product = ThroughputProduct(
+                tenant_id=TENANT_ID,
+                item_id=item_id,
+                name=name,
+                default_bag_size=default_bag_size,
+                is_bulka_default=is_bulka_default,
+                active=costing_product.visible,
+                is_stock_item=True,
+                notes="Seeded from costing products",
+            )
+            db.add(product)
+            created += 1
+            if item_id:
+                by_item[item_id] = product
+            by_name[name_key] = product
+            continue
+
+        changed = False
+        if item_id and product.item_id != item_id:
+            product.item_id = item_id
+            changed = True
+        if product.name != name:
+            old_name_key = product.name.strip().lower() if product.name else None
+            product.name = name
+            if old_name_key:
+                by_name.pop(old_name_key, None)
+            by_name[name_key] = product
+            changed = True
+        if product.default_bag_size != default_bag_size:
+            product.default_bag_size = default_bag_size
+            changed = True
+        if product.is_bulka_default != is_bulka_default:
+            product.is_bulka_default = is_bulka_default
+            changed = True
+        if product.active != costing_product.visible:
+            product.active = costing_product.visible
+            changed = True
+        if product.is_stock_item is not True:
+            product.is_stock_item = True
+            changed = True
+        if product.notes in {None, "", "Seeded from costing products"}:
+            product.notes = "Seeded from costing products"
+        if changed:
+            updated += 1
+
+    db.flush()
+    return {"created": created, "updated": updated, "skipped": skipped}
+
+
 def seed_client_access(db):
     existing = db.scalar(select(ClientAccount.id))
     if existing is not None:
@@ -667,7 +906,7 @@ def seed_client_access(db):
     )
 
     enabled_feature_map = {
-        TENANT_ID: {"dashboard", "raw_materials", "mix_master", "mix_calculator", "products", "scenarios", "powerbi_export", "client_access"},
+        TENANT_ID: {"dashboard", "raw_materials", "mix_master", "mix_calculator", "products", "scenarios", "powerbi_export", "client_access", "operations_throughput"},
         "loft-grains": {"dashboard", "mix_calculator", "products", "powerbi_export"},
     }
 
@@ -713,10 +952,13 @@ def seed_client_access(db):
 
 
 def seed_costing_workspace(db):
-    workbook = _load_workbook()
-    raw_material_rows = _read_raw_material_rows(workbook)
-    mix_rows = _read_mix_rows(workbook)
-    product_rows = _read_product_rows(workbook)
+    costing_workbook = _load_workbook("C- Raw Products Costs", "M - All", "Product Cost - Price")
+    formula_workbook = _load_workbook("mix_quantites_per_client_per_pr")
+
+    raw_material_rows = _read_raw_material_rows(costing_workbook)
+    mix_rows = _read_mix_rows(costing_workbook)
+    product_rows = _read_product_rows(costing_workbook)
+    product_ingredient_rows = _read_product_ingredient_rows(formula_workbook)
 
     raw_material_map = _upsert_raw_materials(db, raw_material_rows)
     _upsert_process_rules(db, product_rows)
@@ -735,9 +977,53 @@ def seed_costing_workspace(db):
         mix_cache[(mix_row["client_name"], mix_row["name"])] = mix
 
     _upsert_products(db, product_rows, mix_cache, raw_material_map)
+    _upsert_product_ingredients(
+        db,
+        product_rows=product_rows,
+        product_ingredient_rows=product_ingredient_rows,
+        raw_material_map=raw_material_map,
+    )
 
 
-def seed_if_empty():
+def seed_throughput_workbook(db):
+    """Import the Operations Throughput workbook on first run if tables are empty."""
+    has_products = db.scalar(select(ThroughputProduct.id)) is not None
+    has_entries = db.scalar(select(ProductionThroughput.id)) is not None
+    if not has_products and not has_entries:
+        workbook_path = resolve_throughput_workbook_path()
+        if workbook_path is None:
+            logger.info("Operations Throughput workbook not found; seeding throughput products from costing products")
+        else:
+            try:
+                report = import_throughput_workbook(db, workbook_path, TENANT_ID)
+            except Exception:
+                logger.exception("Failed to seed Operations Throughput workbook from %s", workbook_path)
+            else:
+                logger.info("Operations Throughput seeded from %s: %s", workbook_path, report)
+
+    report = seed_throughput_products_from_costing(db)
+    if any(report.values()):
+        logger.info("Throughput products synced from costing products: %s", report)
+
+
+def seed_throughput_products(db):
+    """Sync throughput products from costing products without importing historical entries."""
+    report = seed_throughput_products_from_costing(db)
+    if any(report.values()):
+        logger.info("Throughput products synced from costing products: %s", report)
+        return
+
+
+def seed_startup_basics():
+    Base.metadata.create_all(bind=engine)
+    with SessionLocal() as db:
+        seed_client_access(db)
+        seed_access(db)
+        seed_throughput_workbook(db)
+        db.commit()
+
+
+def seed_all():
     Base.metadata.create_all(bind=engine)
     with SessionLocal() as db:
         workbook_path = _resolve_workbook_path()
@@ -748,10 +1034,29 @@ def seed_if_empty():
                 "Skipping costing workspace seed because workbook is missing. Checked: %s",
                 ", ".join(str(path) for path in _workbook_candidates()),
             )
+        seed_throughput_products(db)
+        seed_client_access(db)
+        seed_access(db)
+        db.commit()
+
+
+def seed_if_empty():
+    Base.metadata.create_all(bind=engine)
+    with SessionLocal() as db:
+        if db.scalar(select(RawMaterial.id)) is None:
+            workbook_path = _resolve_workbook_path()
+            if workbook_path.exists():
+                seed_costing_workspace(db)
+            else:
+                logger.warning(
+                    "Skipping costing workspace seed because workbook is missing. Checked: %s",
+                    ", ".join(str(path) for path in _workbook_candidates()),
+                )
+        seed_throughput_products(db)
         seed_client_access(db)
         seed_access(db)
         db.commit()
 
 
 if __name__ == "__main__":
-    seed_if_empty()
+    seed_all()

backend/app/seed_access.py

@@ -3,13 +3,18 @@
 Re-running this is safe: it upserts permissions, syncs each role's permission
 set to the declared list, and creates or updates the seed users without
 duplicating rows. Permission grants are the source of truth — change them
-here (or in the DB) rather than in route code.
+here (or in the DB) rather than in route code. Existing password hashes are
+left intact; only users with no password hash get the current default
+``ADMIN_PASSWORD`` hashed into the row.
 """
 from __future__ import annotations
 
 from sqlalchemy import select
 from sqlalchemy.orm import Session, selectinload
 
+from app.core.config import settings
+from app.core.security import hash_password
+from app.db.session import SessionLocal
 from app.models.access import Permission, Role, User
 
 
@@ -24,6 +29,8 @@ PERMISSION_DEFINITIONS: tuple[tuple[str, str], ...] = (
     ("edit_products", "Create and edit finished products"),
     ("view_mixes", "View mix master recipes"),
     ("edit_mixes", "Create and edit mix master recipes"),
+    ("view_throughput", "View operations throughput"),
+    ("edit_throughput", "Create and edit operations throughput entries"),
     ("view_users", "View internal users and roles"),
     ("manage_users", "Create, deactivate, and assign user roles"),
     ("manage_permissions", "Modify roles and role-permission assignments"),
@@ -44,6 +51,8 @@ ROLE_DEFINITIONS: dict[str, dict] = {
             "edit_raw_materials",
             "view_products",
             "view_mixes",
+            "view_throughput",
+            "edit_throughput",
             "view_users",
             "manage_users",
             "manage_permissions",
@@ -52,11 +61,13 @@ ROLE_DEFINITIONS: dict[str, dict] = {
         ],
     },
     "Operations": {
-        "description": "Mix calculator only — cannot edit raw materials, products, mixes, users, or settings.",
+        "description": "Mix calculator and operations throughput — cannot edit raw materials, products, mixes, users, or settings.",
         "permissions": [
             "view_mix_calculator",
             "use_mix_calculator",
             "save_mix_calculator_session",
+            "view_throughput",
+            "edit_throughput",
         ],
     },
     "Full Access": {
@@ -72,6 +83,8 @@ ROLE_DEFINITIONS: dict[str, dict] = {
             "edit_products",
             "view_mixes",
             "edit_mixes",
+            "view_throughput",
+            "edit_throughput",
         ],
     },
 }
@@ -154,6 +167,8 @@ def _upsert_users(db: Session, roles_by_name: dict[str, Role]) -> None:
             user.role_id = role.id
             if not user.is_active:
                 user.is_active = True
+        if user.password_hash is None:
+            user.password_hash = hash_password(settings.admin_password)
     db.flush()
 
 
@@ -162,3 +177,13 @@ def seed_access(db: Session) -> None:
     permissions_by_key = _upsert_permissions(db)
     roles_by_name = _upsert_roles(db, permissions_by_key)
     _upsert_users(db, roles_by_name)
+
+
+def seed_access_from_session() -> None:
+    with SessionLocal() as db:
+        seed_access(db)
+        db.commit()
+
+
+if __name__ == "__main__":
+    seed_access_from_session()

backend/app/services/client_access_service.py

@@ -20,6 +20,7 @@ MODULE_CATALOG = (
     ("mix_calculator", "Mix Calculator", "production", "Create and review client-specific mix calculation sessions"),
     ("products", "Products", "pricing", "Review finished product pricing"),
     ("scenarios", "Scenarios", "planning", "Run scenario overrides and comparisons"),
+    ("operations_throughput", "Operations Throughput", "production", "Log production throughput and QA checks for grain/feed packing"),
     ("powerbi_export", "Power BI Export", "reporting", "Expose client access data to BI consumers"),
     ("client_access", "Client Access", "administration", "Manage user access, module permissions, and audit history"),
 )
@@ -78,15 +79,15 @@ def has_access_level(access_level: str | None, minimum_level: str) -> bool:
 def default_access_level_for_role(role: str, module_key: str) -> str:
     normalized = role.strip().lower()
     if normalized == "superadmin":
-        return "manage" if module_key in {"client_access", "mix_calculator"} else "edit"
+        return "manage" if module_key in {"client_access", "mix_calculator", "operations_throughput"} else "edit"
     if normalized == "admin":
-        if module_key == "mix_calculator":
+        if module_key in {"mix_calculator", "operations_throughput"}:
             return "manage"
         return "edit" if module_key != "client_access" else "none"
     if normalized == "operator":
-        return "edit" if module_key in {"dashboard", "raw_materials", "mix_master", "mix_calculator", "products", "scenarios"} else "none"
+        return "edit" if module_key in {"dashboard", "raw_materials", "mix_master", "mix_calculator", "products", "scenarios", "operations_throughput"} else "none"
     if normalized == "viewer":
-        return "view" if module_key in {"dashboard", "mix_calculator", "products", "powerbi_export"} else "none"
+        return "view" if module_key in {"dashboard", "mix_calculator", "products", "powerbi_export", "operations_throughput"} else "none"
     return "none"
 
 

backend/app/services/costing_engine.py

@@ -8,7 +8,7 @@ from sqlalchemy.orm import Session, selectinload
 
 from app.models.assumption import FreightCostRule, PackagingCostRule, ProcessCostRule
 from app.models.mix import Mix, MixIngredient
-from app.models.product import Product
+from app.models.product import Product, ProductIngredient
 from app.models.raw_material import RawMaterial, RawMaterialPriceVersion
 
 
@@ -119,6 +119,78 @@ def calculate_mix_cost(db: Session, mix_id: int, overrides: dict | None = None)
     }
 
 
+def _calculate_formula_cost_from_product_ingredients(
+    product_ingredients: list[ProductIngredient],
+    overrides: dict | None = None,
+) -> dict:
+    overrides = overrides or {}
+    total_mix_kg = 0.0
+    total_mix_cost = 0.0
+    warnings: list[str] = []
+    lines: list[dict] = []
+
+    for ingredient in product_ingredients:
+        raw_material = ingredient.raw_material
+        active_price = get_active_price(raw_material)
+        if active_price is None:
+            warnings.append(f"{raw_material.name} has no active price")
+            lines.append(
+                {
+                    "id": ingredient.id,
+                    "raw_material_id": raw_material.id,
+                    "raw_material_name": raw_material.name,
+                    "quantity_kg": ingredient.quantity_kg,
+                    "cost_per_kg": None,
+                    "line_cost": None,
+                    "notes": ingredient.notes,
+                }
+            )
+            total_mix_kg += ingredient.quantity_kg
+            continue
+
+        market_value = overrides.get("raw_material_market_values", {}).get(str(raw_material.id), active_price.market_value)
+        waste_percentage = overrides.get("raw_material_waste_percentages", {}).get(str(raw_material.id), active_price.waste_percentage)
+        price_stub = RawMaterialPriceVersion(
+            raw_material_id=raw_material.id,
+            market_value=market_value,
+            waste_percentage=waste_percentage,
+            effective_date=active_price.effective_date,
+            status=active_price.status,
+        )
+        price_comp = calculate_raw_material_cost(raw_material, price_stub)
+        line_cost = round(ingredient.quantity_kg * price_comp.cost_per_kg, 4)
+        total_mix_kg += ingredient.quantity_kg
+        total_mix_cost += line_cost
+        lines.append(
+            {
+                "id": ingredient.id,
+                "raw_material_id": raw_material.id,
+                "raw_material_name": raw_material.name,
+                "quantity_kg": ingredient.quantity_kg,
+                "cost_per_kg": price_comp.cost_per_kg,
+                "line_cost": line_cost,
+                "notes": ingredient.notes,
+            }
+        )
+
+    if total_mix_kg == 0:
+        warnings.append("Mix total kg is zero")
+        mix_cost_per_kg = None
+    else:
+        mix_cost_per_kg = round(total_mix_cost / total_mix_kg, 4)
+
+    if not product_ingredients:
+        warnings.append("Mix has no ingredients")
+
+    return {
+        "ingredients": lines,
+        "total_mix_kg": round(total_mix_kg, 4),
+        "total_mix_cost": round(total_mix_cost, 4),
+        "mix_cost_per_kg": mix_cost_per_kg,
+        "warnings": warnings,
+    }
+
+
 def _get_process_costs(db: Session, process_name: str | None, overrides: dict) -> tuple[float, float, float, list[str]]:
     if not process_name:
         return 0.0, 0.0, 0.0, ["Missing bagging process"]
@@ -192,12 +264,22 @@ def extract_unit_quantity_kg(unit_of_measure: str) -> float:
 def calculate_product_cost(db: Session, product_id: int, overrides: dict | None = None) -> dict:
     overrides = overrides or {}
     overrides = {**overrides, "tenant_id": overrides.get("tenant_id")}
-    product = db.scalar(select(Product).where(Product.id == product_id).options(selectinload(Product.mix)))
+    product = db.scalar(
+        select(Product)
+        .where(Product.id == product_id)
+        .options(
+            selectinload(Product.mix),
+            selectinload(Product.ingredients).selectinload(ProductIngredient.raw_material).selectinload(RawMaterial.price_versions),
+        )
+    )
     if product is None:
         raise ValueError(f"Product {product_id} not found")
     overrides["tenant_id"] = product.tenant_id
 
-    mix_result = calculate_mix_cost(db, product.mix_id, overrides=overrides)
+    if product.ingredients:
+        mix_result = _calculate_formula_cost_from_product_ingredients(product.ingredients, overrides=overrides)
+    else:
+        mix_result = calculate_mix_cost(db, product.mix_id, overrides=overrides)
     warnings = list(mix_result["warnings"])
     sale_unit_kg = extract_unit_quantity_kg(product.unit_of_measure)
 

backend/app/services/mix_calculator_filenames.py

@@ -3,8 +3,14 @@ from __future__ import annotations
 import re
 
 from app.models.mix_calculator import MixCalculatorSession
+from app.schemas.mix_calculator import MixCalculatorPreviewRead
 
 
 def mix_calculator_pdf_filename(session_record: MixCalculatorSession) -> str:
     raw = f"{session_record.session_number}_{session_record.client_name}_{session_record.product_name}.pdf"
     return re.sub(r"[^\w.\-]+", "_", raw)
+
+
+def mix_calculator_preview_pdf_filename(preview: MixCalculatorPreviewRead) -> str:
+    raw = f"MixCalculator_{preview.client_name}_{preview.product_name}_{preview.mix_date}.pdf"
+    return re.sub(r"[^\w.\-]+", "_", raw)

backend/app/services/mix_calculator_pdf.py

@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 from io import BytesIO
-from math import ceil
+from pathlib import Path
+from types import SimpleNamespace
 
 from app.models.mix_calculator import MixCalculatorSession
 
@@ -24,272 +25,329 @@ def _fractional_bag_warning(session_record: MixCalculatorSession) -> str | None:
     )
 
 
-def build_mix_calculator_pdf(session_record: MixCalculatorSession) -> bytes:
+def _coerce_pdf_source(source):
+    if isinstance(source, dict):
+        lines = [SimpleNamespace(**line) if isinstance(line, dict) else line for line in source.get("lines", [])]
+        return SimpleNamespace(**{**source, "lines": lines})
+    return source
+
+
+def build_mix_calculator_pdf(session_record: MixCalculatorSession | dict) -> bytes:
+    session_record = _coerce_pdf_source(session_record)
     try:
         from reportlab.lib import colors
         from reportlab.lib.pagesizes import A4
-        from reportlab.lib.styles import ParagraphStyle, getSampleStyleSheet
-        from reportlab.lib.units import mm
-        from reportlab.platypus import Paragraph, SimpleDocTemplate, Spacer, Table, TableStyle
+        from reportlab.lib.utils import ImageReader
+        from reportlab.pdfbase.pdfmetrics import stringWidth
+        from reportlab.pdfgen import canvas
     except ModuleNotFoundError as exc:
         raise MixCalculatorPdfUnavailableError(
             "PDF generation is unavailable because 'reportlab' is not installed. "
             "Install backend dependencies again to enable PDF export."
         ) from exc
 
+    page_width, page_height = A4
+    margin = 26
+    gutter = 10
+    content_width = page_width - (margin * 2)
+    page_top = page_height - 40
+
+    palette = {
+        "page": colors.HexColor("#FFFFFF"),
+        "line": colors.HexColor("#000000"),
+        "muted": colors.HexColor("#000000"),
+        "text": colors.HexColor("#000000"),
+        "warning_bg": colors.HexColor("#FFFFFF"),
+        "warning_text": colors.HexColor("#000000"),
+    }
+    logo_path = Path(__file__).resolve().parents[3] / "frontend" / "static" / "logo-hsf.png"
+
+    def clamp(value: float, minimum: float, maximum: float) -> float:
+        return max(minimum, min(maximum, value))
+
+    def fit_text(value: str, font_name: str, font_size: float, max_width: float) -> str:
+        if stringWidth(value, font_name, font_size) <= max_width:
+            return value
+        ellipsis = "..."
+        available = max_width - stringWidth(ellipsis, font_name, font_size)
+        trimmed = value
+        while trimmed and stringWidth(trimmed, font_name, font_size) > available:
+            trimmed = trimmed[:-1]
+        return f"{trimmed.rstrip()}{ellipsis}" if trimmed else ellipsis
+
+    def wrap_text(value: str, font_name: str, font_size: float, max_width: float, max_lines: int) -> list[str]:
+        words = value.split()
+        if not words:
+            return []
+        lines: list[str] = []
+        current = words[0]
+        for word in words[1:]:
+            candidate = f"{current} {word}"
+            if stringWidth(candidate, font_name, font_size) <= max_width:
+                current = candidate
+            else:
+                lines.append(current)
+                current = word
+                if len(lines) == max_lines - 1:
+                    break
+        if len(lines) < max_lines:
+            lines.append(current)
+
+        remaining_words = words[len(" ".join(lines).split()) :]
+        if remaining_words and lines:
+            lines[-1] = fit_text(f"{lines[-1]} {' '.join(remaining_words)}", font_name, font_size, max_width)
+        return lines[:max_lines]
+
+    def draw_box(pdf: canvas.Canvas, x: float, y_top: float, width: float, height: float):
+        pdf.setFillColor(palette["page"])
+        pdf.setStrokeColor(palette["line"])
+        pdf.setLineWidth(1)
+        pdf.rect(x, y_top - height, width, height, fill=1, stroke=1)
+
+    def draw_label_value_card(
+        pdf: canvas.Canvas,
+        x: float,
+        y_top: float,
+        width: float,
+        height: float,
+        label: str,
+        value: str,
+        subtitle: str | None = None,
+        value_font_size: float = 14,
+    ):
+        draw_box(pdf, x, y_top, width, height)
+        inset_x = x + 14
+        label_y = y_top - 16
+        pdf.setFillColor(palette["muted"])
+        pdf.setFont("Helvetica-Bold", 7.5)
+        pdf.drawString(inset_x, label_y, label.upper())
+
+        value_y = y_top - 38
+        pdf.setFillColor(palette["text"])
+        pdf.setFont("Helvetica-Bold", value_font_size)
+        pdf.drawString(inset_x, value_y, fit_text(value, "Helvetica-Bold", value_font_size, width - 28))
+
+        if subtitle:
+            pdf.setFillColor(palette["muted"])
+            pdf.setFont("Helvetica", 8)
+            pdf.drawString(inset_x, y_top - height + 14, fit_text(subtitle, "Helvetica", 8, width - 28))
+
     buffer = BytesIO()
-    document = SimpleDocTemplate(
-        buffer,
-        pagesize=A4,
-        leftMargin=14 * mm,
-        rightMargin=14 * mm,
-        topMargin=14 * mm,
-        bottomMargin=14 * mm,
-        title=f"{session_record.session_number} - {session_record.product_name}",
-        author="Lean 101 Clients",
+    pdf = canvas.Canvas(buffer, pagesize=A4)
+    session_number = getattr(session_record, "session_number", None)
+    document_title = (
+        f"{session_number} - {session_record.product_name}"
+        if session_number
+        else f"Mix Calculator - {session_record.product_name}"
     )
+    pdf.setTitle(document_title)
+    pdf.setAuthor("Lean 101 Clients")
 
-    styles = getSampleStyleSheet()
-    eyebrow = ParagraphStyle(
-        "Eyebrow",
-        parent=styles["BodyText"],
-        fontName="Helvetica-Bold",
-        fontSize=8,
-        leading=10,
-        textColor=colors.HexColor("#62736B"),
-        spaceAfter=5,
-    )
-    title = ParagraphStyle(
-        "Title",
-        parent=styles["Heading1"],
-        fontName="Helvetica-Bold",
-        fontSize=24,
-        leading=26,
-        textColor=colors.HexColor("#21312A"),
-        spaceAfter=6,
-    )
-    subtitle = ParagraphStyle(
-        "Subtitle",
-        parent=styles["BodyText"],
-        fontName="Helvetica",
-        fontSize=10,
-        leading=13,
-        textColor=colors.HexColor("#6B7A73"),
-    )
-    label = ParagraphStyle(
-        "Label",
-        parent=styles["BodyText"],
-        fontName="Helvetica-Bold",
-        fontSize=7,
-        leading=9,
-        textColor=colors.HexColor("#6B7A73"),
-    )
-    value = ParagraphStyle(
-        "Value",
-        parent=styles["BodyText"],
-        fontName="Helvetica-Bold",
-        fontSize=11,
-        leading=13,
-        textColor=colors.HexColor("#21312A"),
-    )
-    card_value = ParagraphStyle(
-        "CardValue",
-        parent=value,
-        fontSize=16,
-        leading=18,
-    )
-    body = ParagraphStyle(
-        "Body",
-        parent=styles["BodyText"],
-        fontName="Helvetica",
-        fontSize=9,
-        leading=12,
-        textColor=colors.HexColor("#304038"),
-    )
-    section_title = ParagraphStyle(
-        "SectionTitle",
-        parent=styles["Heading2"],
-        fontName="Helvetica-Bold",
-        fontSize=13,
-        leading=15,
-        textColor=colors.HexColor("#21312A"),
-    )
+    pdf.setFillColor(palette["page"])
+    pdf.rect(0, 0, page_width, page_height, stroke=0, fill=1)
 
-    warnings = []
-    bag_warning = _fractional_bag_warning(session_record)
-    if bag_warning:
-        warnings.append(bag_warning)
+    current_y = page_top
+    mix_date_label = f"{session_record.mix_date.day} {session_record.mix_date.strftime('%B %Y')}"
 
-    story = [
-        Paragraph(f"Mix Calculator  |  {session_record.session_number}", eyebrow),
-        Paragraph(session_record.product_name, title),
-        Paragraph(f"{session_record.client_name} &nbsp;&middot;&nbsp; {session_record.mix_name}", subtitle),
-        Spacer(1, 8),
-    ]
+    if logo_path.exists():
+        logo_source = str(logo_path)
+        try:
+            from PIL import Image
 
-    header_table = Table(
-        [
-            [
-                [
-                    Paragraph("Mix date", label),
-                    Paragraph(session_record.mix_date.strftime("%d %b %Y"), value),
-                ],
-                [
-                    Paragraph("Prepared by", label),
-                    Paragraph(session_record.prepared_by_name, value),
-                ],
-                [
-                    Paragraph("Status", label),
-                    Paragraph(session_record.status.title(), value),
-                ],
-            ]
-        ],
-        colWidths=[60 * mm, 60 * mm, 52 * mm],
-    )
-    header_table.setStyle(
-        TableStyle(
-            [
-                ("VALIGN", (0, 0), (-1, -1), "TOP"),
-                ("BOX", (0, 0), (-1, -1), 0.8, colors.HexColor("#DBE4DE")),
-                ("INNERGRID", (0, 0), (-1, -1), 0.8, colors.HexColor("#DBE4DE")),
-                ("BACKGROUND", (0, 0), (-1, -1), colors.white),
-                ("LEFTPADDING", (0, 0), (-1, -1), 10),
-                ("RIGHTPADDING", (0, 0), (-1, -1), 10),
-                ("TOPPADDING", (0, 0), (-1, -1), 9),
-                ("BOTTOMPADDING", (0, 0), (-1, -1), 9),
-            ]
+            logo_source = Image.open(logo_path).convert("L")
+        except ModuleNotFoundError:
+            pass
+
+        logo_reader = ImageReader(logo_source)
+        logo_width, logo_height = logo_reader.getSize()
+        aspect_ratio = logo_height / max(logo_width, 1)
+        draw_width = 108
+        draw_height = draw_width * aspect_ratio
+        pdf.drawImage(
+            logo_reader,
+            margin,
+            current_y - draw_height,
+            width=draw_width,
+            height=draw_height,
+            preserveAspectRatio=True,
+            mask="auto",
         )
-    )
-    story.extend([header_table, Spacer(1, 10)])
+        current_y -= draw_height + 20
 
-    summary_table = Table(
-        [
-            [
-                [Paragraph("Batch size", label), Paragraph(f"{_fmt_number(session_record.batch_size_kg)}kg", card_value)],
-                [Paragraph("Total output", label), Paragraph(f"{_fmt_number(session_record.total_kg)}kg", card_value)],
-                [Paragraph("Bags", label), Paragraph(_fmt_number(session_record.total_bags), card_value)],
-                [Paragraph("Unit pack", label), Paragraph(f"{_fmt_number(session_record.product_unit_size_kg)}kg", card_value)],
-            ]
-        ],
-        colWidths=[43 * mm, 43 * mm, 43 * mm, 43 * mm],
-    )
-    summary_table.setStyle(
-        TableStyle(
-            [
-                ("BOX", (0, 0), (-1, -1), 0.8, colors.HexColor("#DBE4DE")),
-                ("INNERGRID", (0, 0), (-1, -1), 0.8, colors.HexColor("#DBE4DE")),
-                ("BACKGROUND", (0, 0), (-1, -1), colors.HexColor("#F9FBFA")),
-                ("VALIGN", (0, 0), (-1, -1), "TOP"),
-                ("LEFTPADDING", (0, 0), (-1, -1), 10),
-                ("RIGHTPADDING", (0, 0), (-1, -1), 10),
-                ("TOPPADDING", (0, 0), (-1, -1), 10),
-                ("BOTTOMPADDING", (0, 0), (-1, -1), 10),
-            ]
-        )
-    )
-    story.extend([summary_table, Spacer(1, 10)])
+    pdf.setFillColor(palette["text"])
+    pdf.setFont("Helvetica-Bold", 15)
+    pdf.drawString(margin, current_y, "Calculated Output")
+    current_y -= 16
 
-    detail_table = Table(
-        [
-            [
-                [Paragraph("Mix source", label), Paragraph(session_record.mix_name, value), Paragraph(f"Saved against {session_record.product_unit_of_measure} units.", body)],
-                [Paragraph("Composition", label), Paragraph(f"{_fmt_number(sum(line.mix_percentage for line in session_record.lines))}%", value), Paragraph(f"{len(session_record.lines)} raw material{'s' if len(session_record.lines) != 1 else ''} in the blend.", body)],
-                [Paragraph("Estimated pages", label), Paragraph(str(max(1, ceil(len(session_record.lines) / 18))), value), Paragraph("Formatted for A4 PDF export.", body)],
-            ]
-        ],
-        colWidths=[60 * mm, 60 * mm, 52 * mm],
+    pdf.setFillColor(palette["muted"])
+    pdf.setFont("Helvetica", 10)
+    pdf.drawString(margin, current_y, "Snapshot of the scaled raw material requirements.")
+    current_y -= 20
+
+    stat_height = 66
+    stat_width = (content_width - (gutter * 2)) / 3
+    draw_label_value_card(
+        pdf,
+        margin,
+        current_y,
+        stat_width,
+        stat_height,
+        "Total kg",
+        _fmt_number(session_record.total_kg),
+        "Scaled batch size",
+        value_font_size=18,
     )
-    detail_table.setStyle(
-        TableStyle(
-            [
-                ("BACKGROUND", (0, 0), (-1, -1), colors.HexColor("#F4F8F5")),
-                ("VALIGN", (0, 0), (-1, -1), "TOP"),
-                ("LEFTPADDING", (0, 0), (-1, -1), 10),
-                ("RIGHTPADDING", (0, 0), (-1, -1), 10),
-                ("TOPPADDING", (0, 0), (-1, -1), 10),
-                ("BOTTOMPADDING", (0, 0), (-1, -1), 10),
-            ]
-        )
+    draw_label_value_card(
+        pdf,
+        margin + stat_width + gutter,
+        current_y,
+        stat_width,
+        stat_height,
+        "Total bags",
+        _fmt_number(session_record.total_bags),
+        session_record.product_unit_of_measure,
+        value_font_size=18,
     )
-    story.extend([detail_table, Spacer(1, 10)])
+    draw_label_value_card(
+        pdf,
+        margin + ((stat_width + gutter) * 2),
+        current_y,
+        stat_width,
+        stat_height,
+        "Prepared by",
+        session_record.prepared_by_name,
+        mix_date_label,
+        value_font_size=10.5,
+    )
+    current_y -= stat_height + 12
+
+    detail_height = 52
+    detail_width = (content_width - gutter) / 2
+    draw_label_value_card(
+        pdf,
+        margin,
+        current_y,
+        detail_width,
+        detail_height,
+        "Client",
+        session_record.client_name,
+        value_font_size=12,
+    )
+    draw_label_value_card(
+        pdf,
+        margin + detail_width + gutter,
+        current_y,
+        detail_width,
+        detail_height,
+        "Product",
+        session_record.product_name,
+        value_font_size=12,
+    )
+    current_y -= detail_height + 8
+
+    draw_label_value_card(
+        pdf,
+        margin,
+        current_y,
+        detail_width,
+        detail_height,
+        "Mix source",
+        session_record.mix_name,
+        value_font_size=11,
+    )
+    draw_label_value_card(
+        pdf,
+        margin + detail_width + gutter,
+        current_y,
+        detail_width,
+        detail_height,
+        "Unit size",
+        f"{_fmt_number(session_record.product_unit_size_kg)}kg",
+        value_font_size=12,
+    )
+    current_y -= detail_height + 10
+
+    warning = _fractional_bag_warning(session_record)
+    note_lines: list[str] = []
+    warning_lines: list[str] = []
+    strip_height = 0
 
     if session_record.notes:
-        notes_table = Table(
-            [[Paragraph("Notes", label)], [Paragraph(session_record.notes.replace("\n", "<br/>"), body)]],
-            colWidths=[172 * mm],
-        )
-        notes_table.setStyle(
-            TableStyle(
-                [
-                    ("BACKGROUND", (0, 0), (-1, 0), colors.HexColor("#F4F8F5")),
-                    ("BOX", (0, 0), (-1, -1), 0.8, colors.HexColor("#DBE4DE")),
-                    ("LEFTPADDING", (0, 0), (-1, -1), 10),
-                    ("RIGHTPADDING", (0, 0), (-1, -1), 10),
-                    ("TOPPADDING", (0, 0), (-1, -1), 8),
-                    ("BOTTOMPADDING", (0, 0), (-1, -1), 8),
-                ]
-            )
-        )
-        story.extend([notes_table, Spacer(1, 10)])
+        note_lines = wrap_text(session_record.notes.replace("\n", " "), "Helvetica", 7.5, content_width - 28, 2)
+        strip_height += 30
+    if warning:
+        warning_lines = wrap_text(warning, "Helvetica", 7.5, content_width - 28, 2)
+        strip_height += 30
+    if strip_height:
+        strip_height += 6
 
-    if warnings:
-        warning_rows = [[Paragraph("Warnings", label)]]
-        warning_rows.extend([[Paragraph(warning, body)] for warning in warnings])
-        warnings_table = Table(warning_rows, colWidths=[172 * mm])
-        warnings_table.setStyle(
-            TableStyle(
-                [
-                    ("BACKGROUND", (0, 0), (-1, 0), colors.HexColor("#FFF5E6")),
-                    ("BACKGROUND", (0, 1), (-1, -1), colors.HexColor("#FFF9EF")),
-                    ("BOX", (0, 0), (-1, -1), 0.8, colors.HexColor("#E8C483")),
-                    ("LEFTPADDING", (0, 0), (-1, -1), 10),
-                    ("RIGHTPADDING", (0, 0), (-1, -1), 10),
-                    ("TOPPADDING", (0, 0), (-1, -1), 8),
-                    ("BOTTOMPADDING", (0, 0), (-1, -1), 8),
-                ]
-            )
-        )
-        story.extend([warnings_table, Spacer(1, 10)])
+    table_header_height = 24
+    table_bottom_padding = 12
+    table_top = current_y
+    available_table_height = table_top - margin - strip_height - table_header_height - table_bottom_padding
+    row_count = max(len(session_record.lines), 1)
+    row_height = clamp(available_table_height / row_count, 16, 32)
+    table_font_size = clamp(row_height * 0.36, 7, 11)
+    table_height = table_header_height + (row_height * row_count)
+    table_bottom = table_top - table_height
 
-    story.extend(
-        [
-            Paragraph("Required Raw Materials", label),
-            Paragraph("Blend composition", section_title),
-            Paragraph(f"{session_record.product_unit_of_measure} · {_fmt_number(session_record.product_unit_size_kg)}kg per unit", subtitle),
-            Spacer(1, 6),
-        ]
-    )
+    pdf.setFillColor(palette["muted"])
+    pdf.setFont("Helvetica-Bold", 7.5)
+    pdf.drawString(margin + 4, table_top - 7, "RAW MATERIAL")
+    pdf.drawString(margin + content_width - 190, table_top - 7, "REQUIRED KG")
+
+    pdf.setStrokeColor(palette["line"])
+    pdf.setLineWidth(0.8)
+    pdf.line(margin, table_top - table_header_height, margin + content_width, table_top - table_header_height)
+
+    left_col_x = margin + 6
+    right_col_x = margin + content_width - 190
+    y_cursor = table_top - table_header_height
 
-    table_rows = [["Raw material", "Mix %", "Required kg", "Unit"]]
     for line in session_record.lines:
-        table_rows.append(
-            [
-                Paragraph(f"<b>{line.raw_material_name}</b>", body),
-                Paragraph(f"{_fmt_number(line.mix_percentage)}%", body),
-                Paragraph(f"{_fmt_number(line.required_kg)}kg", body),
-                Paragraph(line.unit, body),
-            ]
-        )
+        y_cursor -= row_height
+        pdf.setStrokeColor(palette["line"])
+        pdf.setLineWidth(0.6)
+        pdf.line(margin, y_cursor, margin + content_width, y_cursor)
 
-    composition_table = Table(table_rows, colWidths=[88 * mm, 24 * mm, 34 * mm, 26 * mm], repeatRows=1)
-    composition_table.setStyle(
-        TableStyle(
-            [
-                ("BACKGROUND", (0, 0), (-1, 0), colors.HexColor("#EEF4F0")),
-                ("TEXTCOLOR", (0, 0), (-1, 0), colors.HexColor("#4F6158")),
-                ("FONTNAME", (0, 0), (-1, 0), "Helvetica-Bold"),
-                ("FONTSIZE", (0, 0), (-1, 0), 8),
-                ("BOTTOMPADDING", (0, 0), (-1, 0), 8),
-                ("TOPPADDING", (0, 0), (-1, 0), 8),
-                ("LEFTPADDING", (0, 0), (-1, -1), 9),
-                ("RIGHTPADDING", (0, 0), (-1, -1), 9),
-                ("GRID", (0, 0), (-1, -1), 0.6, colors.HexColor("#DBE4DE")),
-                ("VALIGN", (0, 0), (-1, -1), "TOP"),
-                ("ROWBACKGROUNDS", (0, 1), (-1, -1), [colors.white, colors.HexColor("#FBFCFB")]),
-            ]
+        text_y = y_cursor + (row_height / 2) - (table_font_size * 0.35)
+        pdf.setFillColor(palette["text"])
+        pdf.setFont("Helvetica-Bold", table_font_size)
+        pdf.drawString(
+            left_col_x,
+            text_y,
+            fit_text(line.raw_material_name, "Helvetica-Bold", table_font_size, content_width - 210),
         )
-    )
-    story.append(composition_table)
+        pdf.setFont("Helvetica", table_font_size)
+        pdf.drawString(right_col_x, text_y, f"{_fmt_number(line.required_kg)}kg")
 
-    document.build(story)
+    strip_y = table_bottom - 6
+    if note_lines:
+        note_height = 24 if len(note_lines) == 1 else 30
+        pdf.setFillColor(palette["page"])
+        pdf.setStrokeColor(palette["line"])
+        pdf.rect(margin, strip_y - note_height, content_width, note_height, fill=1, stroke=1)
+        pdf.setFillColor(palette["muted"])
+        pdf.setFont("Helvetica-Bold", 7)
+        pdf.drawString(margin + 10, strip_y - 10, "NOTES")
+        pdf.setFillColor(palette["text"])
+        pdf.setFont("Helvetica", 7.5)
+        for idx, text in enumerate(note_lines):
+            pdf.drawString(margin + 10, strip_y - 20 - (idx * 8), text)
+        strip_y -= note_height + 6
+
+    if warning_lines:
+        warning_height = 24 if len(warning_lines) == 1 else 30
+        pdf.setFillColor(palette["warning_bg"])
+        pdf.setStrokeColor(palette["line"])
+        pdf.rect(margin, strip_y - warning_height, content_width, warning_height, fill=1, stroke=1)
+        pdf.setFillColor(palette["warning_text"])
+        pdf.setFont("Helvetica-Bold", 7)
+        pdf.drawString(margin + 10, strip_y - 10, "WARNING")
+        pdf.setFont("Helvetica", 7.5)
+        for idx, text in enumerate(warning_lines):
+            pdf.drawString(margin + 10, strip_y - 20 - (idx * 8), text)
+
+    pdf.showPage()
+    pdf.save()
     return buffer.getvalue()

backend/app/services/mix_calculator_service.py

@@ -8,7 +8,7 @@ from sqlalchemy.orm import Session, joinedload, selectinload
 from app.api.deps import AuthSession
 from app.models.mix import Mix, MixIngredient
 from app.models.mix_calculator import MixCalculatorSession, MixCalculatorSessionLine
-from app.models.product import Product
+from app.models.product import Product, ProductIngredient
 from app.schemas.mix_calculator import MixCalculatorSessionCreate, MixCalculatorSessionUpdate
 from app.services.costing_engine import extract_unit_quantity_kg
 
@@ -28,10 +28,44 @@ def _load_product_for_calculation(db: Session, tenant_id: str, product_id: int)
     return db.scalar(
         select(Product)
         .where(Product.id == product_id, Product.tenant_id == tenant_id, Product.visible.is_(True))
-        .options(selectinload(Product.mix).selectinload(Mix.ingredients).selectinload(MixIngredient.raw_material))
+        .options(
+            selectinload(Product.ingredients).selectinload(ProductIngredient.raw_material),
+            selectinload(Product.mix).selectinload(Mix.ingredients).selectinload(MixIngredient.raw_material),
+        )
     )
 
 
+def _resolved_formula_rows(product: Product) -> tuple[list[dict], float]:
+    if product.ingredients:
+        rows = [
+            {
+                "raw_material_id": ingredient.raw_material_id,
+                "raw_material_name": ingredient.raw_material.name,
+                "quantity_kg": ingredient.quantity_kg,
+                "unit": ingredient.raw_material.unit_of_measure,
+                "sort_order": ingredient.sort_order,
+            }
+            for ingredient in product.ingredients
+            if ingredient.raw_material is not None
+        ]
+    elif product.mix is not None:
+        rows = [
+            {
+                "raw_material_id": ingredient.raw_material_id,
+                "raw_material_name": ingredient.raw_material.name if ingredient.raw_material is not None else f"Raw material {ingredient.raw_material_id}",
+                "quantity_kg": ingredient.quantity_kg,
+                "unit": ingredient.raw_material.unit_of_measure if ingredient.raw_material is not None else "kg",
+                "sort_order": index,
+            }
+            for index, ingredient in enumerate(product.mix.ingredients, start=1)
+        ]
+    else:
+        rows = []
+
+    rows.sort(key=lambda row: (row["sort_order"], row["raw_material_name"]))
+    return rows, round(sum(row["quantity_kg"] for row in rows), 4)
+
+
 def _fractional_bag_warning(batch_size_kg: float, total_bags: float, unit_of_measure: str) -> str | None:
     rounded_bags = round(total_bags)
     if abs(total_bags - rounded_bags) < 1e-9:
@@ -54,12 +88,9 @@ def calculate_mix_calculator_preview(
         raise ValueError("Product not found")
     if product.client_name != values["client_name"]:
         raise ValueError("Selected product does not belong to the chosen client")
-    if product.mix is None:
-        raise ValueError("Product mix is not configured")
-
-    source_total_kg = round(sum(ingredient.quantity_kg for ingredient in product.mix.ingredients), 4)
+    formula_rows, source_total_kg = _resolved_formula_rows(product)
     if source_total_kg <= 0:
-        raise ValueError("Product mix has no source kilograms to scale")
+        raise ValueError("Product has no source kilograms to scale")
 
     batch_size_kg = float(values["batch_size_kg"])
     scale_factor = batch_size_kg / source_total_kg
@@ -72,18 +103,17 @@ def calculate_mix_calculator_preview(
         warnings.append(bag_warning)
 
     lines = []
-    for index, ingredient in enumerate(product.mix.ingredients, start=1):
-        mix_percentage = round((ingredient.quantity_kg / source_total_kg) * 100, 4)
-        required_kg = round(ingredient.quantity_kg * scale_factor, 4)
-        raw_material = ingredient.raw_material
+    for index, ingredient in enumerate(formula_rows, start=1):
+        mix_percentage = round((ingredient["quantity_kg"] / source_total_kg) * 100, 4)
+        required_kg = round(ingredient["quantity_kg"] * scale_factor, 4)
         lines.append(
             {
-                "raw_material_id": raw_material.id if raw_material is not None else ingredient.raw_material_id,
-                "raw_material_name": raw_material.name if raw_material is not None else f"Raw material {ingredient.raw_material_id}",
+                "raw_material_id": ingredient["raw_material_id"],
+                "raw_material_name": ingredient["raw_material_name"],
                 "required_kg": required_kg,
                 "mix_percentage": mix_percentage,
-                "unit": raw_material.unit_of_measure if raw_material is not None else "kg",
-                "sort_order": index,
+                "unit": ingredient["unit"],
+                "sort_order": ingredient["sort_order"] or index,
             }
         )
 
@@ -92,7 +122,7 @@ def calculate_mix_calculator_preview(
         "product_id": product.id,
         "product_name": product.name,
         "mix_id": product.mix_id,
-        "mix_name": product.mix.name,
+        "mix_name": product.mix.name if product.mix else product.name,
         "mix_date": values["mix_date"],
         "batch_size_kg": round(batch_size_kg, 4),
         "total_bags": total_bags,
@@ -108,10 +138,16 @@ def calculate_mix_calculator_preview(
 
 
 def build_mix_calculator_options(db: Session, *, tenant_id: str) -> dict:
-    # Aggregate mix totals in a single query instead of loading every
-    # ingredient row for every product. The previous implementation was the
-    # main slow path on first Mix Calculator open — it streamed the entire
-    # tenant's recipe table just to compute one sum per product.
+    # Prefer product-specific formulas where present; fall back to the shared
+    # mix master for legacy rows that have not been migrated yet.
+    product_totals_rows = db.execute(
+        select(ProductIngredient.product_id, func.coalesce(func.sum(ProductIngredient.quantity_kg), 0.0))
+        .join(Product, Product.id == ProductIngredient.product_id)
+        .where(Product.tenant_id == tenant_id)
+        .group_by(ProductIngredient.product_id)
+    ).all()
+    product_totals: dict[int, float] = {product_id: round(total or 0.0, 4) for product_id, total in product_totals_rows}
+
     mix_totals_rows = db.execute(
         select(MixIngredient.mix_id, func.coalesce(func.sum(MixIngredient.quantity_kg), 0.0))
         .join(Mix, Mix.id == MixIngredient.mix_id)
@@ -137,7 +173,7 @@ def build_mix_calculator_options(db: Session, *, tenant_id: str) -> dict:
             "mix_name": product.mix.name if product.mix else "",
             "unit_of_measure": product.unit_of_measure,
             "unit_size_kg": round(extract_unit_quantity_kg(product.unit_of_measure), 4),
-            "mix_total_kg": mix_totals.get(product.mix_id, 0.0),
+            "mix_total_kg": product_totals.get(product.id, mix_totals.get(product.mix_id, 0.0)),
         }
         for product in products
     ]

backend/app/services/throughput_service.py

@@ -0,0 +1,348 @@
+from __future__ import annotations
+
+import logging
+from datetime import date, datetime
+from pathlib import Path
+from typing import Iterable
+
+from openpyxl import load_workbook
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.throughput import ProductionThroughput, ThroughputProduct
+
+logger = logging.getLogger("data_entry_app.throughput")
+
+PRODUCTION_SHEET = "Production"
+NAMES_SHEET = "Names"
+
+# Anything at or above this kg/bag is treated as a bulka batch, not a per-bag count.
+_BULKA_BAG_SIZE_THRESHOLD = 100.0
+
+
+def normalise_staff_name(value: object) -> str | None:
+    if value is None:
+        return None
+    text = str(value).strip()
+    if not text:
+        return None
+    # Collapse internal whitespace, title-case for consistency.
+    cleaned = " ".join(text.split())
+    return cleaned
+
+
+def calculate_kg(quantity: float | None, quantity_type: str, bag_size: float | None) -> float:
+    if quantity is None:
+        return 0.0
+    if quantity_type == "kg":
+        return float(quantity)
+    if bag_size is None:
+        return 0.0
+    return float(quantity) * float(bag_size)
+
+
+def qa_passed(entry: ProductionThroughput) -> bool:
+    return bool(entry.scales_checked and entry.label_correct and entry.bag_sealed and entry.pallet_good_condition)
+
+
+def serialize_entry(entry: ProductionThroughput) -> dict:
+    return {
+        "id": entry.id,
+        "tenant_id": entry.tenant_id,
+        "production_date": entry.production_date,
+        "product_id": entry.product_id,
+        "product_name_snapshot": entry.product_name_snapshot,
+        "bag_size": entry.bag_size,
+        "scales_checked": entry.scales_checked,
+        "label_correct": entry.label_correct,
+        "bag_sealed": entry.bag_sealed,
+        "pallet_good_condition": entry.pallet_good_condition,
+        "sample_box_no": entry.sample_box_no,
+        "test_weight_1": entry.test_weight_1,
+        "test_weight_2": entry.test_weight_2,
+        "test_weight_3": entry.test_weight_3,
+        "test_weight_4": entry.test_weight_4,
+        "test_weight_5": entry.test_weight_5,
+        "quantity": entry.quantity,
+        "quantity_type": entry.quantity_type,
+        "calculated_kg": entry.calculated_kg,
+        "staff_name": entry.staff_name,
+        "notes": entry.notes,
+        "qa_passed": qa_passed(entry),
+        "created_by": entry.created_by,
+        "created_at": entry.created_at,
+        "updated_at": entry.updated_at,
+    }
+
+
+def _coerce_bool(value: object) -> bool:
+    if isinstance(value, bool):
+        return value
+    if value is None:
+        return True
+    if isinstance(value, (int, float)):
+        return bool(value)
+    text = str(value).strip().lower()
+    if text in {"yes", "y", "true", "1", "pass", "ok", "x", "checked"}:
+        return True
+    if text in {"no", "n", "false", "0", "fail"}:
+        return False
+    return True
+
+
+def _coerce_float(value: object) -> float | None:
+    if value is None or value == "":
+        return None
+    if isinstance(value, bool):
+        return float(value)
+    if isinstance(value, (int, float)):
+        return float(value)
+    text = str(value).strip().replace(",", "")
+    if not text:
+        return None
+    try:
+        return float(text)
+    except ValueError:
+        return None
+
+
+def _coerce_text(value: object) -> str | None:
+    if value is None:
+        return None
+    text = str(value).strip()
+    if not text or text.lower() in {"#value!", "#n/a", "n/a"}:
+        return None
+    return text
+
+
+def _coerce_date(value: object) -> date | None:
+    if value is None:
+        return None
+    if isinstance(value, datetime):
+        return value.date()
+    if isinstance(value, date):
+        return value
+    text = str(value).strip()
+    if not text:
+        return None
+    for fmt in ("%Y-%m-%d", "%d/%m/%Y", "%m/%d/%Y"):
+        try:
+            return datetime.strptime(text, fmt).date()
+        except ValueError:
+            continue
+    return None
+
+
+def _infer_bulka_default(name: str, bag_size: float | None) -> bool:
+    lowered = name.lower()
+    if "bulka" in lowered:
+        return True
+    if bag_size is None:
+        return False
+    return bag_size >= _BULKA_BAG_SIZE_THRESHOLD
+
+
+def import_names_sheet(db: Session, workbook, tenant_id: str) -> tuple[int, int]:
+    """Upsert product master from the Names sheet. Returns (created, updated)."""
+    if NAMES_SHEET not in workbook.sheetnames:
+        return (0, 0)
+
+    ws = workbook[NAMES_SHEET]
+    existing: dict[tuple[str, str | None], ThroughputProduct] = {}
+    by_item: dict[str, ThroughputProduct] = {}
+    by_name: dict[str, ThroughputProduct] = {}
+    for product in db.scalars(
+        select(ThroughputProduct).where(ThroughputProduct.tenant_id == tenant_id)
+    ).all():
+        if product.item_id:
+            by_item[str(product.item_id)] = product
+        by_name[product.name.lower()] = product
+
+    created = 0
+    updated = 0
+    for row in ws.iter_rows(min_row=2, values_only=True):
+        if not row:
+            continue
+        name = _coerce_text(row[0] if len(row) > 0 else None)
+        if not name:
+            continue
+        item_id_raw = row[1] if len(row) > 1 else None
+        item_id = None
+        if item_id_raw is not None:
+            if isinstance(item_id_raw, float) and item_id_raw.is_integer():
+                item_id = str(int(item_id_raw))
+            else:
+                item_id = _coerce_text(item_id_raw)
+
+        product = (by_item.get(item_id) if item_id else None) or by_name.get(name.lower())
+        if product is None:
+            product = ThroughputProduct(
+                tenant_id=tenant_id,
+                item_id=item_id,
+                name=name,
+                default_bag_size=None,
+                is_bulka_default="bulka" in name.lower(),
+                active=True,
+                notes="Imported from Operations Throughput.xlsx",
+            )
+            db.add(product)
+            created += 1
+            if item_id:
+                by_item[item_id] = product
+            by_name[name.lower()] = product
+        else:
+            if item_id and not product.item_id:
+                product.item_id = item_id
+            if name and product.name != name:
+                product.name = name
+            updated += 1
+
+    db.flush()
+    return (created, updated)
+
+
+def import_production_sheet(db: Session, workbook, tenant_id: str) -> tuple[int, int]:
+    """Import the Production sheet. Returns (imported, skipped)."""
+    if PRODUCTION_SHEET not in workbook.sheetnames:
+        return (0, 0)
+
+    ws = workbook[PRODUCTION_SHEET]
+    # Header row is row 3 in the sheet (rows 1 and 2 are display banners).
+    products_by_name: dict[str, ThroughputProduct] = {
+        product.name.lower(): product
+        for product in db.scalars(
+            select(ThroughputProduct).where(ThroughputProduct.tenant_id == tenant_id)
+        ).all()
+    }
+
+    bag_size_seen: dict[int, list[float]] = {}
+    imported = 0
+    skipped = 0
+
+    for row in ws.iter_rows(min_row=4, values_only=True):
+        if not row or len(row) < 15:
+            skipped += 1
+            continue
+        production_date = _coerce_date(row[0])
+        product_name = _coerce_text(row[1])
+        if production_date is None or not product_name:
+            skipped += 1
+            continue
+
+        bag_size = _coerce_float(row[2])
+        scales = _coerce_bool(row[3])
+        label = _coerce_bool(row[4])
+        sealed = _coerce_bool(row[5])
+        pallet = _coerce_bool(row[6])
+        sample_box = _coerce_text(row[7])
+        tw1 = _coerce_float(row[8])
+        tw2 = _coerce_float(row[9])
+        tw3 = _coerce_float(row[10])
+        tw4 = _coerce_float(row[11])
+        tw5 = _coerce_float(row[12])
+        quantity = _coerce_float(row[13]) or 0.0
+        staff = normalise_staff_name(row[14])
+        notes = _coerce_text(row[15]) if len(row) > 15 else None
+
+        # Infer quantity_type: bulka-style rows have a blank or very large bag size.
+        if bag_size is None or bag_size >= _BULKA_BAG_SIZE_THRESHOLD or "bulka" in product_name.lower():
+            quantity_type = "kg"
+        else:
+            quantity_type = "bags"
+
+        product = products_by_name.get(product_name.lower())
+        if product is None:
+            product = ThroughputProduct(
+                tenant_id=tenant_id,
+                item_id=None,
+                name=product_name,
+                default_bag_size=bag_size,
+                is_bulka_default=_infer_bulka_default(product_name, bag_size),
+                active=True,
+                notes="Auto-created during Operations Throughput import",
+            )
+            db.add(product)
+            db.flush()
+            products_by_name[product_name.lower()] = product
+
+        if product.id is not None and bag_size is not None and bag_size > 0:
+            bag_size_seen.setdefault(product.id, []).append(bag_size)
+
+        calculated = calculate_kg(quantity, quantity_type, bag_size)
+        entry = ProductionThroughput(
+            tenant_id=tenant_id,
+            production_date=production_date,
+            product_id=product.id,
+            product_name_snapshot=product_name,
+            bag_size=bag_size,
+            scales_checked=scales,
+            label_correct=label,
+            bag_sealed=sealed,
+            pallet_good_condition=pallet,
+            sample_box_no=sample_box,
+            test_weight_1=tw1,
+            test_weight_2=tw2,
+            test_weight_3=tw3,
+            test_weight_4=tw4,
+            test_weight_5=tw5,
+            quantity=quantity,
+            quantity_type=quantity_type,
+            calculated_kg=calculated,
+            staff_name=staff,
+            notes=notes,
+            created_by="workbook-import",
+        )
+        db.add(entry)
+        imported += 1
+
+    # Backfill default_bag_size on products that don't have one but appear in entries.
+    for product_id, sizes in bag_size_seen.items():
+        product = db.get(ThroughputProduct, product_id)
+        if product and product.default_bag_size is None:
+            # Use the most common bag size seen.
+            common = max(set(sizes), key=sizes.count)
+            product.default_bag_size = common
+            if not product.is_bulka_default:
+                product.is_bulka_default = _infer_bulka_default(product.name, common)
+
+    db.flush()
+    return (imported, skipped)
+
+
+def import_workbook(db: Session, workbook_path: Path, tenant_id: str) -> dict:
+    workbook = load_workbook(workbook_path, data_only=True)
+    products_created, products_updated = import_names_sheet(db, workbook, tenant_id)
+    entries_imported, entries_skipped = import_production_sheet(db, workbook, tenant_id)
+    return {
+        "products_created": products_created,
+        "products_updated": products_updated,
+        "entries_imported": entries_imported,
+        "entries_skipped": entries_skipped,
+    }
+
+
+def workbook_candidates() -> Iterable[Path]:
+    repo_root = Path(__file__).resolve().parents[3]
+    candidates = [
+        repo_root / "Operations Throughput.xlsx",
+        repo_root.parent / "Operations Throughput.xlsx",
+        Path.cwd() / "Operations Throughput.xlsx",
+        Path("/srv/lean101-clients") / "Operations Throughput.xlsx",
+        Path("/app") / "Operations Throughput.xlsx",
+    ]
+    seen: set[str] = set()
+    ordered: list[Path] = []
+    for candidate in candidates:
+        key = str(candidate)
+        if key in seen:
+            continue
+        seen.add(key)
+        ordered.append(candidate)
+    return ordered
+
+
+def resolve_workbook_path() -> Path | None:
+    for candidate in workbook_candidates():
+        if candidate.exists():
+            return candidate
+    return None

backend/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "data-entry-app-backend"
-version = "0.1.5"
+version = "0.1.8"
 description = "Costing platform MVP backend"
 requires-python = ">=3.11"
 dependencies = [

backend/tests/test_access.py

@@ -7,6 +7,7 @@ from sqlalchemy import create_engine
 from sqlalchemy.orm import Session, sessionmaker
 from sqlalchemy.pool import StaticPool
 
+from app.api.access import router as access_router
 from app.core.access import (
     INTERNAL_USER_SUBJECT,
     get_user_permissions,
@@ -15,7 +16,8 @@ from app.core.access import (
     require_permission,
     user_has_permission,
 )
-from app.core.security import issue_token
+from app.core.config import settings
+from app.core.security import issue_token, verify_password
 from app.db.session import Base, get_db
 from app.models.access import Permission, Role, User
 from app.seed_access import PERMISSION_DEFINITIONS, ROLE_DEFINITIONS, SEED_USERS, seed_access
@@ -42,6 +44,10 @@ def test_seed_creates_roles_permissions_and_users():
     assert {role.name for role in db.query(Role).all()} == set(ROLE_DEFINITIONS.keys())
     assert {p.key for p in db.query(Permission).all()} == {key for key, _ in PERMISSION_DEFINITIONS}
     assert {user.email for user in db.query(User).all()} == {entry["email"] for entry in SEED_USERS}
+    for user in db.query(User).all():
+        assert user.password_hash is not None
+        assert user.password_hash != settings.admin_password
+        assert verify_password(settings.admin_password, user.password_hash)
 
 
 def test_seed_is_idempotent():
@@ -71,14 +77,20 @@ def test_admin_role_permissions_match_spec():
     assert "edit_mixes" not in granted
 
 
-def test_operations_role_is_mix_calculator_only():
+def test_operations_role_is_mix_calculator_and_throughput_only():
     db = _build_session()
     seed_access(db)
 
     ops = db.query(User).filter_by(email="ops@hunterstockfeeds.com").one()
     granted = get_user_permissions(ops)
 
-    assert granted == {"view_mix_calculator", "use_mix_calculator", "save_mix_calculator_session"}
+    assert granted == {
+        "view_mix_calculator",
+        "use_mix_calculator",
+        "save_mix_calculator_session",
+        "view_throughput",
+        "edit_throughput",
+    }
     assert not user_has_permission(ops, "edit_raw_materials")
     assert not user_has_permission(ops, "view_dashboard")
     assert not user_has_permission(ops, "manage_users")
@@ -158,6 +170,22 @@ def _token_for(user: User) -> str:
     return issue_token({"sub": INTERNAL_USER_SUBJECT, "user_id": user.id, "email": user.email})
 
 
+@pytest.fixture()
+def access_app_and_db():
+    db = _build_session()
+    seed_access(db)
+    db.commit()
+
+    app = FastAPI()
+
+    def override_get_db():
+        yield db
+
+    app.dependency_overrides[get_db] = override_get_db
+    app.include_router(access_router)
+    return TestClient(app), db
+
+
 def test_route_allows_user_with_permission(app_and_db):
     client, db = app_and_db
     craig = db.query(User).filter_by(email="craig@hunterstockfeeds.com").one()
@@ -234,3 +262,55 @@ def test_require_all_permissions(app_and_db):
 
     denied = client.get("/needs-all", headers={"Authorization": f"Bearer {_token_for(ops)}"})
     assert denied.status_code == 403
+
+
+def test_internal_login_uses_user_password_hash(access_app_and_db):
+    client, db = access_app_and_db
+    admin = db.query(User).filter_by(email="admin@hunterstockfeeds.com").one()
+
+    admin.password_hash = issue_token({"not": "a password"})
+    db.commit()
+
+    denied = client.post(
+        "/api/access/login",
+        json={"email": admin.email, "password": settings.admin_password},
+    )
+    assert denied.status_code == 401
+
+
+def test_internal_user_can_change_own_password(access_app_and_db):
+    client, db = access_app_and_db
+    admin = db.query(User).filter_by(email="admin@hunterstockfeeds.com").one()
+
+    login_response = client.post(
+        "/api/access/login",
+        json={"email": admin.email, "password": settings.admin_password},
+    )
+    assert login_response.status_code == 200
+
+    update_response = client.patch(
+        "/api/access/me",
+        json={
+            "current_password": settings.admin_password,
+            "new_password": "new-personal-password",
+        },
+        cookies=login_response.cookies,
+    )
+    assert update_response.status_code == 200
+
+    db.refresh(admin)
+    assert admin.password_hash is not None
+    assert verify_password("new-personal-password", admin.password_hash)
+    assert not verify_password(settings.admin_password, admin.password_hash)
+
+    old_login = client.post(
+        "/api/access/login",
+        json={"email": admin.email, "password": settings.admin_password},
+    )
+    assert old_login.status_code == 401
+
+    new_login = client.post(
+        "/api/access/login",
+        json={"email": admin.email, "password": "new-personal-password"},
+    )
+    assert new_login.status_code == 200

backend/tests/test_costing_engine.py

@@ -1,7 +1,7 @@
 from datetime import date
 
 from fastapi.testclient import TestClient
-from sqlalchemy import create_engine, inspect, text
+from sqlalchemy import create_engine, inspect, select, text
 from sqlalchemy.orm import Session, sessionmaker
 from sqlalchemy.pool import StaticPool
 
@@ -13,7 +13,7 @@ from app.models.assumption import FreightCostRule, PackagingCostRule, ProcessCos
 from app.models.client_access import ClientAccessAuditEvent, ClientAccount, ClientFeatureAccess, ClientUser
 from app.schemas.mix_calculator import MixCalculatorSessionCreate
 from app.models.mix import Mix, MixIngredient
-from app.models.product import Product
+from app.models.product import Product, ProductIngredient
 from app.models.raw_material import RawMaterial, RawMaterialPriceVersion
 from app.services.client_access_service import build_client_access_export, ensure_user_module_permissions, serialize_client_account
 from app.services.costing_engine import calculate_mix_cost, calculate_product_cost, calculate_raw_material_cost, serialize_raw_material
@@ -97,12 +97,13 @@ def test_mix_and_product_cost_breakdown():
     assert product_result["wholesale_price"] == 17.3268
 
 
-def test_mix_calculator_preview_scales_saved_mix_and_warns_on_fractional_bags():
+def test_mix_calculator_preview_prefers_product_specific_ingredients_and_warns_on_fractional_bags():
     db = build_session()
 
     maize = RawMaterial(name="Maize", unit_of_measure="tonne", kg_per_unit=1000, status="active")
     barley = RawMaterial(name="Barley", unit_of_measure="tonne", kg_per_unit=1000, status="active")
-    db.add_all([maize, barley])
+    wheat = RawMaterial(name="Wheat", unit_of_measure="tonne", kg_per_unit=1000, status="active")
+    db.add_all([maize, barley, wheat])
     db.flush()
 
     mix = Mix(tenant_id="specialty-feeds", client_name="Specialty Feeds", name="Pigeon Mix", status="active", version=1)
@@ -128,6 +129,25 @@ def test_mix_calculator_preview_scales_saved_mix_and_warns_on_fractional_bags():
         bagging_process="standard_bagging",
     )
     db.add(product)
+    db.flush()
+    db.add_all(
+        [
+            ProductIngredient(
+                tenant_id="specialty-feeds",
+                product_id=product.id,
+                raw_material_id=maize.id,
+                quantity_kg=300,
+                sort_order=1,
+            ),
+            ProductIngredient(
+                tenant_id="specialty-feeds",
+                product_id=product.id,
+                raw_material_id=wheat.id,
+                quantity_kg=200,
+                sort_order=2,
+            ),
+        ]
+    )
     db.commit()
 
     preview = calculate_mix_calculator_preview(
@@ -145,8 +165,9 @@ def test_mix_calculator_preview_scales_saved_mix_and_warns_on_fractional_bags():
 
     assert preview["batch_size_kg"] == 550
     assert preview["total_bags"] == 27.5
-    assert preview["lines"][0]["required_kg"] == 353.5714
-    assert preview["lines"][1]["required_kg"] == 196.4286
+    assert [line["raw_material_name"] for line in preview["lines"]] == ["Maize", "Wheat"]
+    assert preview["lines"][0]["required_kg"] == 330
+    assert preview["lines"][1]["required_kg"] == 220
     assert len(preview["warnings"]) == 1
     assert "not a whole-bag quantity" in preview["warnings"][0]
 
@@ -155,7 +176,8 @@ def test_mix_calculator_options_hide_invisible_products_and_clients():
     db = build_session()
 
     maize = RawMaterial(name="Maize", unit_of_measure="tonne", kg_per_unit=1000, status="active")
-    db.add(maize)
+    barley = RawMaterial(name="Barley", unit_of_measure="tonne", kg_per_unit=1000, status="active")
+    db.add_all([maize, barley])
     db.flush()
 
     visible_mix = Mix(tenant_id="hunter-premium-produce", client_name="Peckish", name="Visible Mix", status="active", version=1)
@@ -197,12 +219,89 @@ def test_mix_calculator_options_hide_invisible_products_and_clients():
             ),
         ]
     )
+    db.flush()
+
+    visible_product = db.scalar(select(Product).where(Product.name == "Visible Product"))
+    assert visible_product is not None
+    db.add_all(
+        [
+            ProductIngredient(
+                tenant_id="hunter-premium-produce",
+                product_id=visible_product.id,
+                raw_material_id=maize.id,
+                quantity_kg=12,
+                sort_order=1,
+            ),
+            ProductIngredient(
+                tenant_id="hunter-premium-produce",
+                product_id=visible_product.id,
+                raw_material_id=barley.id,
+                quantity_kg=8,
+                sort_order=2,
+            ),
+        ]
+    )
     db.commit()
 
     options = build_mix_calculator_options(db, tenant_id="hunter-premium-produce")
 
     assert options["clients"] == ["Peckish"]
     assert [product["product_name"] for product in options["products"]] == ["Visible Product"]
+    assert options["products"][0]["mix_total_kg"] == 20
+
+
+def test_calculate_product_cost_prefers_product_specific_ingredients():
+    db = build_session()
+
+    maize = RawMaterial(name="Maize", unit_of_measure="tonne", kg_per_unit=1000, status="active")
+    maize.price_versions.append(RawMaterialPriceVersion(market_value=520, waste_percentage=0.02, effective_date=date(2026, 4, 1)))
+    barley = RawMaterial(name="Barley", unit_of_measure="tonne", kg_per_unit=1000, status="active")
+    barley.price_versions.append(RawMaterialPriceVersion(market_value=470, waste_percentage=0.015, effective_date=date(2026, 4, 1)))
+    wheat = RawMaterial(name="Wheat", unit_of_measure="tonne", kg_per_unit=1000, status="active")
+    wheat.price_versions.append(RawMaterialPriceVersion(market_value=600, waste_percentage=0.01, effective_date=date(2026, 4, 1)))
+    db.add_all([maize, barley, wheat])
+    db.flush()
+
+    mix = Mix(client_name="Specialty Feeds", name="Pigeon Mix", status="active", version=1)
+    db.add(mix)
+    db.flush()
+    db.add_all(
+        [
+            MixIngredient(mix_id=mix.id, raw_material_id=maize.id, quantity_kg=180),
+            MixIngredient(mix_id=mix.id, raw_material_id=barley.id, quantity_kg=100),
+        ]
+    )
+    db.add(ProcessCostRule(process_name="standard_bagging", grading_cost=0.055, bagging_cost=0.04, cracking_cost=0.0))
+    db.add(PackagingCostRule(sale_type="standard", unit_of_measure="20kg bag", own_bag=False, bag_cost=0.63))
+    db.add(FreightCostRule(sale_type="standard", unit_of_measure="20kg bag", cost_per_unit=1.45))
+    db.flush()
+    product = Product(
+        client_name="Specialty Feeds",
+        name="Specialty Pigeon Breeder 20kg",
+        mix_id=mix.id,
+        sale_type="standard",
+        own_bag=False,
+        unit_of_measure="20kg bag",
+        items_per_pallet=50,
+        bagging_process="standard_bagging",
+        distributor_margin=0.225,
+        wholesale_margin=0.18,
+    )
+    db.add(product)
+    db.flush()
+    db.add_all(
+        [
+            ProductIngredient(product_id=product.id, raw_material_id=maize.id, quantity_kg=300, sort_order=1),
+            ProductIngredient(product_id=product.id, raw_material_id=wheat.id, quantity_kg=200, sort_order=2),
+        ]
+    )
+    db.commit()
+
+    product_result = calculate_product_cost(db, product.id)
+
+    assert product_result["finished_product_delivered"] == 15.192
+    assert product_result["distributor_price"] == 19.6026
+    assert product_result["wholesale_price"] == 18.5268
 
 
 def test_sync_product_visibility_hides_configured_clients():

backend/tests/test_throughput.py

@@ -0,0 +1,239 @@
+from datetime import date
+from io import BytesIO
+
+from openpyxl import Workbook
+from sqlalchemy import create_engine, select
+from sqlalchemy.orm import Session, sessionmaker
+
+from app.db.session import Base
+from app.models.mix import Mix
+from app.models.product import Product
+from app.models.raw_material import RawMaterial
+from app.models.throughput import ProductionThroughput, ThroughputProduct
+from app.seed import seed_throughput_products_from_costing
+from app.services.throughput_service import (
+    calculate_kg,
+    import_names_sheet,
+    import_production_sheet,
+    normalise_staff_name,
+    qa_passed,
+)
+
+
+def _session() -> Session:
+    engine = create_engine("sqlite:///:memory:")
+    Base.metadata.create_all(bind=engine)
+    return sessionmaker(bind=engine, expire_on_commit=False)()
+
+
+def _costing_mix(db: Session, tenant_id: str = "hunter-premium-produce") -> Mix:
+    raw_material = RawMaterial(
+        tenant_id=tenant_id,
+        name="Maize",
+        unit_of_measure="tonne",
+        kg_per_unit=1000,
+        status="active",
+    )
+    db.add(raw_material)
+    db.flush()
+    mix = Mix(tenant_id=tenant_id, client_name="Hunter", name="Maize Mix")
+    db.add(mix)
+    db.flush()
+    return mix
+
+
+def test_calculate_kg_bags():
+    assert calculate_kg(10, "bags", 20) == 200.0
+
+
+def test_calculate_kg_kg_ignores_bag_size():
+    assert calculate_kg(550, "kg", None) == 550.0
+    assert calculate_kg(550, "kg", 20) == 550.0
+
+
+def test_calculate_kg_zero_quantity():
+    assert calculate_kg(0, "bags", 20) == 0.0
+    assert calculate_kg(None, "bags", 20) == 0.0
+
+
+def test_staff_name_normalisation():
+    assert normalise_staff_name("  Jake ") == "Jake"
+    assert normalise_staff_name("jake  smith") == "jake smith"
+    assert normalise_staff_name("") is None
+    assert normalise_staff_name(None) is None
+
+
+def test_qa_passed_flag():
+    entry = ProductionThroughput(
+        production_date=date(2026, 1, 1),
+        product_name_snapshot="X",
+        quantity=1,
+        quantity_type="bags",
+        scales_checked=True,
+        label_correct=True,
+        bag_sealed=True,
+        pallet_good_condition=True,
+    )
+    assert qa_passed(entry) is True
+    entry.bag_sealed = False
+    assert qa_passed(entry) is False
+
+
+def _make_workbook() -> BytesIO:
+    wb = Workbook()
+    names = wb.active
+    names.title = "Names"
+    names.append(["Name", "Item ID"])
+    names.append(["Whole Wheat 20kg", 1001])
+    names.append(["Bulka Maize", 1002])
+
+    production = wb.create_sheet("Production")
+    production.append(["#VALUE!", "Operations Throughput"])
+    production.append([None] * 8 + ["TEST WEIGHT"])
+    production.append([
+        "DATE", "GRAIN", "BAG SIZE", "SCALES", "LABEL", "SEALED", "PALLET",
+        "BOX", 1, 2, 3, 4, 5, "QTY", "STAFF", "NOTES",
+    ])
+    production.append([date(2026, 4, 1), "Whole Wheat 20kg", 20, True, True, True, True, None, None, None, None, None, None, 100, "  Jake  ", None])
+    production.append([date(2026, 4, 1), "Bulka Maize", None, True, True, False, True, "B7", None, None, None, None, None, 1500, "Alex", "ok"])
+    production.append([date(2026, 4, 2), "Whole Wheat 20kg", 20, False, True, True, True, None, None, None, None, None, None, 50, "Jake", None])
+
+    buf = BytesIO()
+    wb.save(buf)
+    buf.seek(0)
+    return buf
+
+
+def test_import_names_and_production():
+    from openpyxl import load_workbook
+
+    db = _session()
+    wb = load_workbook(_make_workbook(), data_only=True)
+    created, _ = import_names_sheet(db, wb, "test-tenant")
+    assert created == 2
+
+    imported, skipped = import_production_sheet(db, wb, "test-tenant")
+    assert imported == 3
+    assert skipped == 0
+
+    entries = db.scalars(select(ProductionThroughput).order_by(ProductionThroughput.id)).all()
+    bags_entry = entries[0]
+    assert bags_entry.quantity_type == "bags"
+    assert bags_entry.calculated_kg == 2000.0
+    assert bags_entry.staff_name == "Jake"  # whitespace trimmed
+
+    bulka_entry = entries[1]
+    assert bulka_entry.quantity_type == "kg"
+    assert bulka_entry.calculated_kg == 1500.0
+    assert qa_passed(bulka_entry) is False  # bag_sealed was False
+
+    # Product master should have absorbed default_bag_size for the wheat product
+    wheat = db.scalar(
+        select(ThroughputProduct).where(ThroughputProduct.name == "Whole Wheat 20kg")
+    )
+    assert wheat is not None
+    assert wheat.default_bag_size == 20
+
+
+def test_product_name_snapshot_preserved_when_product_renamed():
+    db = _session()
+    product = ThroughputProduct(tenant_id="t", name="Original Name", default_bag_size=20)
+    db.add(product)
+    db.flush()
+    entry = ProductionThroughput(
+        tenant_id="t",
+        production_date=date(2026, 4, 1),
+        product_id=product.id,
+        product_name_snapshot=product.name,
+        bag_size=20,
+        quantity=10,
+        quantity_type="bags",
+        calculated_kg=200,
+    )
+    db.add(entry)
+    db.flush()
+
+    product.name = "Renamed Product"
+    db.flush()
+
+    reloaded = db.scalar(select(ProductionThroughput).where(ProductionThroughput.id == entry.id))
+    assert reloaded.product_name_snapshot == "Original Name"
+
+
+def test_seed_throughput_products_from_costing_products():
+    db = _session()
+    mix = _costing_mix(db)
+    db.add_all(
+        [
+            Product(
+                tenant_id="hunter-premium-produce",
+                client_name="Hunter",
+                item_id="1001",
+                name="Whole Wheat 20kg",
+                mix_id=mix.id,
+                sale_type="standard",
+                unit_of_measure="20kg bag",
+                visible=True,
+            ),
+            Product(
+                tenant_id="hunter-premium-produce",
+                client_name="Hunter",
+                item_id="1002",
+                name="Bulka Maize",
+                mix_id=mix.id,
+                sale_type="bulka",
+                unit_of_measure="tonne",
+                visible=False,
+            ),
+        ]
+    )
+    db.flush()
+
+    report = seed_throughput_products_from_costing(db)
+
+    assert report == {"created": 2, "updated": 0, "skipped": 0}
+    products = db.scalars(select(ThroughputProduct).order_by(ThroughputProduct.item_id)).all()
+    assert [product.name for product in products] == ["Whole Wheat 20kg", "Bulka Maize"]
+    assert products[0].default_bag_size == 20
+    assert products[0].is_bulka_default is False
+    assert products[0].active is True
+    assert products[1].default_bag_size is None
+    assert products[1].is_bulka_default is True
+    assert products[1].active is False
+
+
+def test_seed_throughput_products_from_costing_updates_existing_by_item_id():
+    db = _session()
+    mix = _costing_mix(db)
+    db.add(
+        Product(
+            tenant_id="hunter-premium-produce",
+            client_name="Hunter",
+            item_id="1001",
+            name="Updated Wheat 25kg",
+            mix_id=mix.id,
+            sale_type="standard",
+            unit_of_measure="25kg bag",
+            visible=True,
+        )
+    )
+    db.add(
+        ThroughputProduct(
+            tenant_id="hunter-premium-produce",
+            item_id="1001",
+            name="Old Wheat",
+            default_bag_size=20,
+            active=False,
+            notes="Seeded from costing products",
+        )
+    )
+    db.flush()
+
+    report = seed_throughput_products_from_costing(db)
+
+    assert report == {"created": 0, "updated": 1, "skipped": 0}
+    products = db.scalars(select(ThroughputProduct)).all()
+    assert len(products) == 1
+    assert products[0].name == "Updated Wheat 25kg"
+    assert products[0].default_bag_size == 25
+    assert products[0].active is True