package uploads

import (
	"context"
	"github.com/google/uuid"
	"github.com/stretchr/testify/require"
	"pipu/api/internal/auth"
	"pipu/api/internal/library"
	"pipu/api/internal/musicbrainz"
	"testing"
)

func TestReleaseOperationsRequireReviewPermission(t *testing.T) {
	s := &Service{}
	for _, ctx := range []context.Context{context.Background(), auth.WithPrincipal(context.Background(), auth.Principal{UserID: uuid.New(), Role: auth.RoleAdmin})} {
		_, err := s.GetReleaseReport(ctx, uuid.New())
		require.Error(t, err)
		_, err = s.SearchReleases(ctx, uuid.New(), musicbrainz.Query{})
		require.Error(t, err)
		_, err = s.ReleaseCover(ctx, uuid.New(), uuid.NewString())
		require.Error(t, err)
		_, err = s.ApplyRelease(ctx, uuid.New(), uuid.NewString(), true, true)
		require.Error(t, err)
	}
}

func releaseFile(title string, number, disc, duration int) File {
	return File{ID: uuid.New(), Status: StatusPendingReview, Meta: &Meta{Artist: "Artist", AlbumArtist: "Artist", Album: "Album", Title: title, Track: &number, Disc: &disc}, DurationMs: &duration}
}
func TestReleaseCompletenessUsesTracksAndEditions(t *testing.T) {
	r := musicbrainz.Release{ID: uuid.NewString(), Artist: "Artist", Type: "Single", Tracks: []musicbrainz.Track{
		{Title: "One", Artist: "Artist", Disc: 1, Position: 1, DurationMs: 180000},
		{Title: "Two", Artist: "Artist", Disc: 2, Position: 1, DurationMs: 200000},
	}}
	files := []File{releaseFile("One", 1, 1, 180100), releaseFile("Two", 1, 2, 199000)}
	c := matchRelease(files, r)
	require.True(t, c.Complete)
	require.Equal(t, 2, c.Matched)
	require.Equal(t, "high", c.Confidence)
	// Two encodings of the same song cover one catalogue slot, never two.
	c = matchRelease([]File{files[0], releaseFile("One", 1, 1, 180000)}, r)
	require.False(t, c.Complete)
	require.Equal(t, 1, c.Matched)
	require.Len(t, c.Missing, 1)
	// A deluxe edition with another track must remain incomplete.
	deluxe := r
	deluxe.Tracks = append(append([]musicbrainz.Track{}, r.Tracks...), musicbrainz.Track{Title: "Bonus", Artist: "Artist", Disc: 2, Position: 2, DurationMs: 220000})
	require.False(t, matchRelease(files, deluxe).Complete)
	// A one-track upload does not turn the two-track single into a full single.
	require.False(t, matchRelease(files[:1], r).Complete)
}
func TestReleaseMatchingDoesNotClaimAmbiguousOrWeakMatchesAreComplete(t *testing.T) {
	r := musicbrainz.Release{Artist: "Artist", Tracks: []musicbrainz.Track{{Title: "Intro", Artist: "Artist", Disc: 1, Position: 1, DurationMs: 12000}, {Title: "Intro", Artist: "Artist", Disc: 2, Position: 1, DurationMs: 12000}}}
	c := matchRelease([]File{releaseFile("Intro", 1, 1, 12000)}, r)
	require.False(t, c.Complete)
	require.Len(t, c.Unmatched, 1)
	r.Tracks = r.Tracks[:1]
	f := releaseFile("Untitled", 1, 1, 12000)
	c = matchRelease([]File{f}, r)
	require.False(t, c.Complete)
	require.Empty(t, c.Matches, "number and duration alone do not identify a differently titled recording")
	f.Meta.Title = "Intro"
	f.Meta.Artist = "Someone Else"
	f.Meta.AlbumArtist = "Someone Else"
	require.False(t, matchRelease([]File{f}, r).Complete)
	f = releaseFile("Intro", 1, 1, 12000)
	f.DurationMs = nil
	require.False(t, matchRelease([]File{f}, r).Complete)
}
func TestReleaseQueryPrioritizesIDsAndRejectsMixedAlbums(t *testing.T) {
	a, b := releaseFile("One", 1, 1, 180000), releaseFile("Two", 2, 1, 180000)
	b.Meta.Album = "Another Album"
	_, ok := batchReleaseQuery([]File{a, b})
	require.False(t, ok)
	id := uuid.NewString()
	a.Tags = map[string]string{"musicbrainz_albumid": id}
	a.Meta.Album = library.UnknownAlbum
	q, ok := batchReleaseQuery([]File{a, b})
	require.True(t, ok)
	require.Equal(t, id, q.ReleaseID)
	b.Tags = map[string]string{"musicbrainz_albumid": uuid.NewString()}
	_, ok = batchReleaseQuery([]File{a, b})
	require.False(t, ok)
}
func TestReleaseFingerprintInvalidatesEditsButNotApproval(t *testing.T) {
	f := releaseFile("One", 1, 1, 180000)
	files := []File{f}
	hash := releaseHash(files)
	files[0].Status = StatusApproved
	require.Equal(t, hash, releaseHash(files))
	files[0].Meta.Title = "Changed"
	require.NotEqual(t, hash, releaseHash(files))
	files[0].Status = StatusWithdrawn
	require.NotEqual(t, hash, releaseHash(files))
}

func TestReleaseMatchesOldBloodCreditsWithoutClaimingVerifiedCompleteness(t *testing.T) {
	tracks := []struct {
		title, uploaded, guest string
		seconds                int
	}{
		{"Введение", "Введение", "", 34},
		{"Ни много ни мало", "Ни много ни мало (Prod. Blacksurfer)", "", 143},
		{"MOONWORK", "MOONWORK (feat. Basic Boy) (Prod. SP4K)", "Basic Boy", 214},
		{"Angry Toy$", "Angry toy$ (Prod. Ray Qwa)", "", 127},
		{"Возраст", "Возраст (feat. Artur Kreem) (Prod. Babyboi)", "Artur Kreem", 138},
		{"OLD BLOOD", "OLD BLOOD (Prod. Chivaz)", "", 138},
		{"Умы", "Умы (feat. DopeVvs) (Prod. MRKBVNGXR)", "DopeVvs", 125},
		{"NO HOOK NO HOES", "NO HOOK NO HOES (feat. Yung Hurn) (Prod. Pretty Scream)", "Yung Hurn", 133},
		{"ART HOES", "ART HOES (Prod. DavidRema)", "", 183},
		{"Friendly Fire", "Friendly Fire (Prod. Avepack)", "", 122},
		{"X2", "X2 (Prod. Gredy)", "", 176},
		{"4 шага", "4 шага (Prod. DavidRema)", "", 135},
	}
	r := musicbrainz.Release{Artist: "Boulevard Depo", Title: "OLD BLOOD"}
	files := []File{}
	for i, track := range tracks {
		artist, uploadedArtist := "Boulevard Depo", "BOULEVARD DEPO"
		if track.guest != "" {
			artist += " feat. " + track.guest
			uploadedArtist += ", " + track.guest
		}
		r.Tracks = append(r.Tracks, musicbrainz.Track{Title: track.title, Artist: artist, Disc: 1, Position: i + 1, DurationMs: track.seconds * 1000})
		f := releaseFile(track.uploaded, i+1, 1, track.seconds*1000+500)
		f.Meta.Artist, f.Meta.AlbumArtist, f.Meta.Album = uploadedArtist, "BOULEVARD DEPO", "OLD BLOOD"
		files = append([]File{f}, files...)
	}
	c := matchRelease(files, r)
	require.Equal(t, 12, c.Matched)
	require.Empty(t, c.Missing)
	require.Empty(t, c.Unmatched)
	require.False(t, c.Complete, "credit-normalized matches still require review")
	require.Equal(t, "medium", c.Confidence)
	for _, match := range c.Matches {
		require.Equal(t, files[len(files)-1-match.TrackIndex].ID, match.FileID)
	}
}

func TestReleaseCreditMatchingRequiresTitleArtistsPositionAndDuration(t *testing.T) {
	for _, change := range []string{"none", "different guest", "different title", "remix", "live", "instrumental", "disc", "position", "duration", "unknown duration"} {
		t.Run(change, func(t *testing.T) {
			f := releaseFile("Song (feat. Guest) (Prod. Producer)", 3, 1, 180500)
			f.Meta.Artist = "ARTIST; Guest"
			r := musicbrainz.Release{Artist: "Artist", Tracks: []musicbrainz.Track{{Title: "Song", Artist: "Artist feat. Guest", Disc: 1, Position: 3, DurationMs: 180000}}}
			switch change {
			case "different guest":
				f.Meta.Artist = "Artist, Someone Else"
			case "different title":
				f.Meta.Title = "Another song (Prod. Producer)"
				f.Meta.Artist = r.Tracks[0].Artist
			case "remix":
				f.Meta.Title = "Song (Remix) (feat. Guest)"
				f.Meta.Artist = r.Tracks[0].Artist
			case "live":
				f.Meta.Title = "Song [Live] (feat. Guest)"
				f.Meta.Artist = r.Tracks[0].Artist
			case "instrumental":
				f.Meta.Title = "Song (Instrumental) (feat. Guest)"
				f.Meta.Artist = r.Tracks[0].Artist
			case "disc":
				*f.Meta.Disc = 2
			case "position":
				*f.Meta.Track = 4
			case "duration":
				*f.DurationMs = 190000
			case "unknown duration":
				f.DurationMs = nil
			}
			c := matchRelease([]File{f}, r)
			if change == "none" {
				require.Equal(t, 1, c.Matched)
				require.Equal(t, "medium", c.Matches[0].Confidence)
			} else {
				require.Zero(t, c.Matched)
				require.Equal(t, []uuid.UUID{f.ID}, c.Unmatched)
			}
			require.False(t, c.Complete)
		})
	}
}