package api

import (
	"encoding/json"
	"testing"
	"time"

	"github.com/ponzischeme89/memby/server/internal/radarr"
)

func TestBuildRadarrRowUsesDigitalReleasesAndEstimatedCinemaFallbackInMonthWindow(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	now := time.Date(2026, 7, 30, 9, 0, 0, 0, location)
	day := func(y int, m time.Month, d int) time.Time {
		return time.Date(y, m, d, 0, 0, 0, 0, location).UTC()
	}
	digitalToday := day(2026, 7, 30)
	digitalSunday := day(2026, 8, 2)
	// Three weeks out: inside the month window, past the point a weekday still names a day.
	digitalLater := day(2026, 8, 20)
	// The day the window closes, which is exclusive.
	beyondWindow := day(2026, 8, 29)
	theatricalOnly := day(2026, 7, 1)
	oldDigital := day(1993, 4, 9)
	modernRerelease := day(2026, 7, 2)

	row, err := buildRadarrRow([]radarr.Movie{
		{ID: 1, Title: "Today", DigitalRelease: &digitalToday, Monitored: true},
		{ID: 2, Title: "Sunday", DigitalRelease: &digitalSunday, Monitored: true},
		{ID: 3, Title: "Three Weeks Out", DigitalRelease: &digitalLater, Monitored: true},
		{ID: 4, Title: "Cinema Only", InCinemas: &theatricalOnly, Monitored: true},
		{ID: 5, Title: "Old Digital Release", Year: 1993, DigitalRelease: &oldDigital, InCinemas: &modernRerelease, Monitored: true},
		{ID: 6, Title: "Beyond Window", DigitalRelease: &beyondWindow, Monitored: true},
	}, now, location)
	if err != nil {
		t.Fatal(err)
	}
	if row.ID != "radarr-upcoming-movies" || row.Kind != "movie-schedule" ||
		row.Title != "Upcoming Movie releases" || len(row.Items) != 4 {
		t.Fatalf("unexpected row: %+v", row)
	}

	items := make([]radarrScheduleItem, len(row.Items))
	for i, raw := range row.Items {
		if err := json.Unmarshal(raw, &items[i]); err != nil {
			t.Fatal(err)
		}
	}
	want := []struct {
		id, airLabel, dayLabel string
	}{
		{"radarr:1", "Digital release today", "Today"},
		{"radarr:4", "Estimated digital release tomorrow", "Tomorrow"},
		{"radarr:2", "Digital release Sunday", "Sunday"},
		{"radarr:3", "Digital release 20 August", "20 Aug"},
	}
	for i, expect := range want {
		got := items[i]
		if got.ID != expect.id || got.MembyAirLabel != expect.airLabel ||
			got.MembyAirDayLabel != expect.dayLabel {
			t.Fatalf("item %d: got id=%s air=%q day=%q, want id=%s air=%q day=%q",
				i, got.ID, got.MembyAirLabel, got.MembyAirDayLabel,
				expect.id, expect.airLabel, expect.dayLabel)
		}
	}
	if items[1].MembyAvailabilityText != "Estimated digital release" {
		t.Fatalf("unexpected estimated availability: %+v", items[1])
	}
}

// A weekday only names an unambiguous day inside the coming week. The month-long window
// routinely holds dates past that, where "Friday" would read as this Friday.
func TestRadarrReleaseLabelsCarryADateBeyondTheComingWeek(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	now := time.Date(2026, 7, 30, 9, 0, 0, 0, location)
	cases := []struct {
		offset   int
		dayLabel string
		airLabel string
	}{
		{0, "Today", "Digital release today"},
		{1, "Tomorrow", "Digital release tomorrow"},
		{2, "Saturday", "Digital release Saturday"},
		{radarrWeekdayLabelDays, "Wednesday", "Digital release Wednesday"},
		{radarrWeekdayLabelDays + 1, "6 Aug", "Digital release 6 August"},
		{21, "20 Aug", "Digital release 20 August"},
	}
	for _, tc := range cases {
		release := now.AddDate(0, 0, tc.offset)
		if got := radarrReleaseDayLabel(release, now, location); got != tc.dayLabel {
			t.Errorf("offset %d: day label = %q, want %q", tc.offset, got, tc.dayLabel)
		}
		if got := digitalReleaseLabel(release, now, location, false); got != tc.airLabel {
			t.Errorf("offset %d: air label = %q, want %q", tc.offset, got, tc.airLabel)
		}
	}
}

func TestRadarrScheduleItemIncludesArtworkAndDownloadState(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	release := time.Date(2026, 8, 1, 0, 0, 0, 0, location).UTC()
	added := time.Date(2026, 7, 31, 22, 15, 0, 0, time.UTC)
	movie := radarr.Movie{
		ID: 9, Title: "Arrival", DigitalRelease: &release, HasFile: true, Monitored: true,
		MovieFile: &radarr.MovieFile{DateAdded: &added},
		Images:    []radarr.Image{{CoverType: "poster"}, {CoverType: "fanart"}},
	}
	effective, ok := effectiveRadarrRelease(movie)
	if !ok {
		t.Fatal("expected a release date")
	}
	item := toRadarrScheduleItem(movie, effective, time.Date(2026, 7, 30, 9, 0, 0, 0, location), location)

	if item.MembySource != "radarr" || item.MembyPlayable ||
		item.ImageTags["Primary"] == "" || len(item.BackdropImageTags) != 1 {
		t.Fatalf("unexpected synthetic item: %+v", item)
	}
	if item.MembyAvailability != "available" || item.MembyAvailabilityText != "Added at 10:15 AM" {
		t.Fatalf("unexpected availability: %+v", item)
	}
}