package api

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

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

func TestBuildSonarrRowIncludesScheduleAndAddedState(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	air := time.Date(2026, 7, 27, 8, 0, 0, 0, time.UTC)
	added := time.Date(2026, 7, 27, 8, 12, 0, 0, time.UTC)
	row, err := buildSonarrRow([]sonarr.Episode{{
		ID:            42,
		SeriesID:      7,
		SeasonNumber:  2,
		EpisodeNumber: 4,
		Title:         "The Crossing",
		AirDateUTC:    &air,
		HasFile:       true,
		Monitored:     true,
		EpisodeFile:   &sonarr.EpisodeFile{DateAdded: &added},
		Series: sonarr.Series{
			ID:    7,
			Title: "Northbound",
			Images: []sonarr.Image{
				{CoverType: "poster"},
				{CoverType: "fanart"},
			},
		},
	}}, time.Date(2026, 7, 27, 21, 0, 0, 0, location), location)
	if err != nil {
		t.Fatal(err)
	}
	if row.ID != "sonarr-airing-today" || row.Kind != "schedule" || len(row.Items) != 1 {
		t.Fatalf("unexpected row: %+v", row)
	}
	var item sonarrScheduleItem
	if err := json.Unmarshal(row.Items[0], &item); err != nil {
		t.Fatal(err)
	}
	if item.ID != "sonarr:7:42" || item.MembyEpisodeCode != "S02E04" {
		t.Fatalf("unexpected identity: %+v", item)
	}
	if item.MembyAvailability != "available" || item.MembyAvailabilityText != "Added at 8:12 PM" {
		t.Fatalf("unexpected availability: %+v", item)
	}
	if item.ImageTags["Primary"] == "" || len(item.BackdropImageTags) != 1 {
		t.Fatalf("artwork was not exposed: %+v", item)
	}
}

func TestBuildPrerollScheduleSplitsTodayAndWeek(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	now := time.Date(2026, 7, 28, 10, 0, 0, 0, location)
	today := time.Date(2026, 7, 28, 20, 30, 0, 0, location).UTC()
	thursday := time.Date(2026, 7, 30, 19, 0, 0, 0, location).UTC()
	schedule := buildPrerollSchedule([]sonarr.Episode{
		{
			ID: 14, SeriesID: 7, SeasonNumber: 1, EpisodeNumber: 4, Title: "Tonight",
			AirDateUTC: &today, Series: sonarr.Series{
				ID: 7, Title: "Northbound", Images: []sonarr.Image{{CoverType: "fanart"}},
			},
		},
		{
			SeasonNumber: 2, EpisodeNumber: 1, Title: "Later",
			AirDateUTC: &thursday, HasFile: true, Series: sonarr.Series{Title: "Harbour"},
		},
	}, now, location)

	if len(schedule.Today) != 1 || schedule.Today[0].Series != "Northbound" ||
		schedule.Today[0].Schedule != "8:30 PM" || schedule.Today[0].ItemID != "sonarr:7:14" ||
		schedule.Today[0].ImageType != "backdrop" {
		t.Fatalf("unexpected today schedule: %+v", schedule.Today)
	}
	if len(schedule.ThisWeek) != 1 || schedule.ThisWeek[0].EpisodeCode != "S02E01" ||
		schedule.ThisWeek[0].Availability != "Downloaded" {
		t.Fatalf("unexpected week schedule: %+v", schedule.ThisWeek)
	}
}

func TestBuildSonarrRowCoversFiveDaysAndUsesRelativeAirLabels(t *testing.T) {
	location := time.FixedZone("NZST", 12*60*60)
	now := time.Date(2026, 7, 29, 8, 0, 0, 0, location)
	episode := func(id int, air time.Time) sonarr.Episode {
		utc := air.UTC()
		return sonarr.Episode{
			ID: id, SeriesID: id, SeasonNumber: 1, EpisodeNumber: id,
			Title: "Episode", AirDateUTC: &utc,
			Series: sonarr.Series{ID: id, Title: "Show"},
		}
	}
	row, err := buildSonarrRow([]sonarr.Episode{
		episode(1, time.Date(2026, 7, 29, 16, 0, 0, 0, location)),
		episode(2, time.Date(2026, 7, 30, 16, 0, 0, 0, location)),
		episode(3, time.Date(2026, 8, 2, 16, 0, 0, 0, location)),
		episode(4, time.Date(2026, 8, 3, 16, 0, 0, 0, location)),
	}, now, location)
	if err != nil {
		t.Fatal(err)
	}
	if row.Title != "Shows airing in the next 5 days" || len(row.Items) != 3 {
		t.Fatalf("five-day row = %+v", row)
	}
	labels := make([]string, 0, len(row.Items))
	dayLabels := make([]string, 0, len(row.Items))
	for _, raw := range row.Items {
		var item sonarrScheduleItem
		if err := json.Unmarshal(raw, &item); err != nil {
			t.Fatal(err)
		}
		labels = append(labels, item.MembyAirLabel)
		dayLabels = append(dayLabels, item.MembyAirDayLabel)
	}
	want := []string{
		"In 8 hours (4:00 PM)",
		"Tomorrow: 4:00 PM",
		"Sunday: 4:00 PM",
	}
	for i := range want {
		if labels[i] != want[i] {
			t.Fatalf("labels = %#v, want %#v", labels, want)
		}
	}
	wantDays := []string{"Today", "Tomorrow", "Sunday"}
	for i := range wantDays {
		if dayLabels[i] != wantDays[i] {
			t.Fatalf("day labels = %#v, want %#v", dayLabels, wantDays)
		}
	}
}