package core

import (
	"context"
	"image"

	"github.com/navidrome/navidrome/consts"
	"github.com/navidrome/navidrome/log"
	"github.com/navidrome/navidrome/model"
	"github.com/navidrome/navidrome/tests"
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
)

var _ = Describe("Artwork", func() {
	var aw *artwork
	var ds model.DataStore
	ctx := log.NewContext(context.TODO())
	var alOnlyEmbed, alEmbedNotFound, alOnlyExternal, alExternalNotFound, alAllOptions model.Album

	BeforeEach(func() {
		ds = &tests.MockDataStore{MockedTranscoding: &tests.MockTranscodingRepo{}}
		alOnlyEmbed = model.Album{ID: "222", Name: "Only embed", EmbedArtPath: "tests/fixtures/test.mp3"}
		alEmbedNotFound = model.Album{ID: "333", Name: "Embed not found", EmbedArtPath: "tests/fixtures/NON_EXISTENT.mp3"}
		alOnlyExternal = model.Album{ID: "444", Name: "Only external", ImageFiles: "tests/fixtures/front.png"}
		alExternalNotFound = model.Album{ID: "555", Name: "External not found", ImageFiles: "tests/fixtures/NON_EXISTENT.png"}
		alAllOptions = model.Album{ID: "666", Name: "All options", EmbedArtPath: "tests/fixtures/test.mp3",
			ImageFiles: "tests/fixtures/cover.jpg:tests/fixtures/front.png",
		}
		aw = NewArtwork(ds).(*artwork)
	})

	Context("Albums", func() {
		Context("ID not found", func() {
			BeforeEach(func() {
				ds.Album(ctx).(*tests.MockAlbumRepo).SetData(model.Albums{
					alOnlyEmbed,
				})
			})
			It("returns placeholder if album is not in the DB", func() {
				_, path, err := aw.get(context.Background(), "al-999-0", 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal(consts.PlaceholderAlbumArt))
			})
		})
		Context("Embed images", func() {
			BeforeEach(func() {
				ds.Album(ctx).(*tests.MockAlbumRepo).SetData(model.Albums{
					alOnlyEmbed,
					alEmbedNotFound,
				})
			})
			It("returns embed cover", func() {
				_, path, err := aw.get(context.Background(), alOnlyEmbed.CoverArtID().String(), 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal("tests/fixtures/test.mp3"))
			})
			It("returns placeholder if embed path is not available", func() {
				_, path, err := aw.get(context.Background(), alEmbedNotFound.CoverArtID().String(), 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal(consts.PlaceholderAlbumArt))
			})
		})
		Context("External images", func() {
			BeforeEach(func() {
				ds.Album(ctx).(*tests.MockAlbumRepo).SetData(model.Albums{
					alOnlyExternal,
					alAllOptions,
				})
			})
			It("returns external cover", func() {
				_, path, err := aw.get(context.Background(), alOnlyExternal.CoverArtID().String(), 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal("tests/fixtures/front.png"))
			})
			It("returns the first image if more than one is available", func() {
				_, path, err := aw.get(context.Background(), alAllOptions.CoverArtID().String(), 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal("tests/fixtures/cover.jpg"))
			})
			It("returns placeholder if external file is not available", func() {
				_, path, err := aw.get(context.Background(), alExternalNotFound.CoverArtID().String(), 0)
				Expect(err).ToNot(HaveOccurred())
				Expect(path).To(Equal(consts.PlaceholderAlbumArt))
			})
		})
	})
	Context("Resize", func() {
		BeforeEach(func() {
			ds.Album(ctx).(*tests.MockAlbumRepo).SetData(model.Albums{
				alOnlyExternal,
			})
		})
		It("returns external cover resized", func() {
			r, path, err := aw.get(context.Background(), alOnlyExternal.CoverArtID().String(), 300)
			Expect(err).ToNot(HaveOccurred())
			Expect(path).To(Equal("tests/fixtures/front.png@300"))
			img, _, err := image.Decode(r)
			Expect(err).To(BeNil())
			Expect(img.Bounds().Size().X).To(Equal(300))
			Expect(img.Bounds().Size().Y).To(Equal(300))
		})
	})
})