0.2.52

server/internal/api/sonarr_status.go

@@ -0,0 +1,131 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/ponzischeme89/memby/server/internal/sonarr"
+	"github.com/ponzischeme89/memby/server/internal/store"
+)
+
+// WatchSonarrLifecycle seeds the durable status history on startup, then refreshes it
+// daily. History stores changes rather than identical daily snapshots: it still records
+// the complete lifecycle while making an active-to-cancelled transition unambiguous.
+func (s *Server) WatchSonarrLifecycle(ctx context.Context, interval time.Duration) {
+	if s.sonarr == nil || interval <= 0 {
+		return
+	}
+	scan := func() {
+		if err := s.scanSonarrLifecycle(ctx); err != nil && ctx.Err() == nil {
+			s.log.Warn("Sonarr lifecycle scan failed", "error", err)
+		}
+	}
+	scan()
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-ctx.Done():
+			return
+		case <-ticker.C:
+			scan()
+		}
+	}
+}
+
+func (s *Server) scanSonarrLifecycle(ctx context.Context) error {
+	series, err := s.sonarr.Series(ctx)
+	if err != nil {
+		return fmt.Errorf("read Sonarr series: %w", err)
+	}
+	now := time.Now().UTC()
+	observations := make([]store.SonarrSeriesStatus, 0, len(series))
+	for _, item := range series {
+		key := sonarrSeriesStatusKey(item)
+		if key == "" || strings.TrimSpace(item.Status) == "" {
+			continue
+		}
+		observations = append(observations, store.SonarrSeriesStatus{
+			SeriesKey: key, SonarrSeriesID: item.ID, TVDBID: item.TVDBID,
+			Title: item.Title, Year: item.Year, Status: item.Status, ObservedAt: now,
+		})
+	}
+	changes, err := s.store.RecordSonarrSeriesStatuses(ctx, observations)
+	if err != nil {
+		return err
+	}
+	cancellations := make([]store.SonarrSeriesStatusChange, 0, len(changes))
+	for _, change := range changes {
+		if sonarrBecameCancelled(change.PreviousStatus, change.Current.Status) {
+			cancellations = append(cancellations, change)
+		}
+	}
+	if len(cancellations) == 0 {
+		s.log.Info("Sonarr lifecycle scan complete", "series", len(observations), "changes", len(changes))
+		return nil
+	}
+
+	users, err := s.store.KnownUsers(ctx)
+	if err != nil {
+		return err
+	}
+	preferences := map[string]store.NotificationPreferences{}
+	preferenceErrors := map[string]bool{}
+	notifications := 0
+	for _, change := range cancellations {
+		for _, user := range users {
+			prefs, ok := preferences[user.ID]
+			if !ok && !preferenceErrors[user.ID] {
+				prefs, err = s.store.NotificationPreferences(ctx, user.ID)
+				if err != nil {
+					preferenceErrors[user.ID] = true
+					s.log.Warn("notification preferences unavailable during Sonarr lifecycle scan",
+						"user", user.ID, "error", err)
+					continue
+				}
+				preferences[user.ID] = prefs
+			}
+			if preferenceErrors[user.ID] || !prefs.Enabled {
+				continue
+			}
+			eventAt := change.Current.ObservedAt
+			sourceKey := fmt.Sprintf("show-cancelled:%s:%d", change.Current.SeriesKey, change.HistoryID)
+			message := change.Current.Title + " is now listed as cancelled in Sonarr."
+			if err := s.store.UpsertNotification(
+				ctx, user.ID, sourceKey, "show-cancelled", "",
+				"Show cancelled", message, &eventAt,
+			); err != nil {
+				s.log.Warn("Sonarr cancellation notification failed",
+					"user", user.ID, "show", change.Current.Title, "error", err)
+				continue
+			}
+			notifications++
+		}
+	}
+	s.log.Info("Sonarr lifecycle scan complete",
+		"series", len(observations), "changes", len(changes),
+		"cancelled", len(cancellations), "notifications", notifications)
+	return nil
+}
+
+func sonarrSeriesStatusKey(series sonarr.Series) string {
+	if series.TVDBID > 0 {
+		return "tvdb:" + strconv.Itoa(series.TVDBID)
+	}
+	if series.ID > 0 {
+		return "sonarr:" + strconv.Itoa(series.ID)
+	}
+	return ""
+}
+
+func sonarrBecameCancelled(previous, current string) bool {
+	previous = strings.ToLower(strings.TrimSpace(previous))
+	current = strings.ToLower(strings.TrimSpace(current))
+	active := previous == "continuing" || previous == "upcoming"
+	cancelled := current == "ended" || current == "deleted" ||
+		current == "cancelled" || current == "canceled"
+	return active && cancelled
+}