package persistence

import (
	"context"
	"encoding/json"

	"github.com/Masterminds/squirrel"
	"github.com/deluan/rest"
	"github.com/navidrome/navidrome/conf"
	"github.com/navidrome/navidrome/conf/configtest"
	"github.com/navidrome/navidrome/model"
	"github.com/navidrome/navidrome/model/request"
	"github.com/navidrome/navidrome/utils"
	. "github.com/onsi/ginkgo/v2"
	. "github.com/onsi/gomega"
)

// Test helper functions to reduce duplication
func createTestArtistWithMBID(id, name, mbid string) model.Artist {
	return model.Artist{
		ID:          id,
		Name:        name,
		MbzArtistID: mbid,
	}
}

func createUserWithLibraries(userID string, libraryIDs []int) model.User {
	user := model.User{
		ID:       userID,
		UserName: userID,
		Name:     userID,
		Email:    userID + "@test.com",
		IsAdmin:  false,
	}

	if len(libraryIDs) > 0 {
		user.Libraries = make(model.Libraries, len(libraryIDs))
		for i, libID := range libraryIDs {
			user.Libraries[i] = model.Library{ID: libID, Name: "Test Library", Path: "/test"}
		}
	}

	return user
}

var _ = Describe("ArtistRepository", func() {

	Context("Core Functionality", func() {
		Describe("GetIndexKey", func() {
			// Note: OrderArtistName should never be empty, so we don't need to test for that
			r := artistRepository{indexGroups: utils.ParseIndexGroups(conf.Server.IndexGroups)}

			DescribeTable("returns correct index key based on PreferSortTags setting",
				func(preferSortTags bool, sortArtistName, orderArtistName, expectedKey string) {
					DeferCleanup(configtest.SetupConfig())
					conf.Server.PreferSortTags = preferSortTags
					a := model.Artist{SortArtistName: sortArtistName, OrderArtistName: orderArtistName, Name: "Test"}
					idx := GetIndexKey(&r, a)
					Expect(idx).To(Equal(expectedKey))
				},
				Entry("PreferSortTags=false, SortArtistName empty -> uses OrderArtistName", false, "", "Bar", "B"),
				Entry("PreferSortTags=false, SortArtistName not empty -> still uses OrderArtistName", false, "Foo", "Bar", "B"),
				Entry("PreferSortTags=true, SortArtistName not empty -> uses SortArtistName", true, "Foo", "Bar", "F"),
				Entry("PreferSortTags=true, SortArtistName empty -> falls back to OrderArtistName", true, "", "Bar", "B"),
			)
		})

		Describe("roleFilter", func() {
			DescribeTable("validates roles and returns appropriate SQL expressions",
				func(role string, shouldBeValid bool) {
					result := roleFilter("", role)
					if shouldBeValid {
						expectedExpr := squirrel.Expr("JSON_EXTRACT(library_artist.stats, '$." + role + ".m') IS NOT NULL")
						Expect(result).To(Equal(expectedExpr))
					} else {
						expectedInvalid := squirrel.Eq{"1": 2}
						Expect(result).To(Equal(expectedInvalid))
					}
				},
				// Valid roles from model.AllRoles
				Entry("artist role", "artist", true),
				Entry("albumartist role", "albumartist", true),
				Entry("composer role", "composer", true),
				Entry("conductor role", "conductor", true),
				Entry("lyricist role", "lyricist", true),
				Entry("arranger role", "arranger", true),
				Entry("producer role", "producer", true),
				Entry("director role", "director", true),
				Entry("engineer role", "engineer", true),
				Entry("mixer role", "mixer", true),
				Entry("remixer role", "remixer", true),
				Entry("djmixer role", "djmixer", true),
				Entry("performer role", "performer", true),
				Entry("maincredit role", "maincredit", true),
				// Invalid roles
				Entry("invalid role - wizard", "wizard", false),
				Entry("invalid role - songanddanceman", "songanddanceman", false),
				Entry("empty string", "", false),
				Entry("SQL injection attempt", "artist') SELECT LIKE(CHAR(65,66,67,68,69,70,71),UPPER(HEX(RANDOMBLOB(500000000/2))))--", false),
			)

			It("handles non-string input types", func() {
				expectedInvalid := squirrel.Eq{"1": 2}
				Expect(roleFilter("", 123)).To(Equal(expectedInvalid))
				Expect(roleFilter("", nil)).To(Equal(expectedInvalid))
				Expect(roleFilter("", []string{"artist"})).To(Equal(expectedInvalid))
			})
		})

		Describe("dbArtist mapping", func() {
			var (
				artist *model.Artist
				dba    *dbArtist
			)

			BeforeEach(func() {
				artist = &model.Artist{ID: "1", Name: "Eddie Van Halen", SortArtistName: "Van Halen, Eddie"}
				dba = &dbArtist{Artist: artist}
			})

			Describe("PostScan", func() {
				It("parses stats and similar artists correctly", func() {
					stats := map[string]map[string]map[string]int64{
						"1": {
							"total":    {"s": 1000, "m": 10, "a": 2},
							"composer": {"s": 500, "m": 5, "a": 1},
						},
					}
					statsJSON, _ := json.Marshal(stats)
					dba.LibraryStatsJSON = string(statsJSON)
					dba.SimilarArtists = `[{"id":"2","Name":"AC/DC"},{"name":"Test;With:Sep,Chars"}]`

					err := dba.PostScan()
					Expect(err).ToNot(HaveOccurred())
					Expect(dba.Artist.Size).To(Equal(int64(1000)))
					Expect(dba.Artist.SongCount).To(Equal(10))
					Expect(dba.Artist.AlbumCount).To(Equal(2))
					Expect(dba.Artist.Stats).To(HaveLen(1))
					Expect(dba.Artist.Stats[model.RoleFromString("composer")].Size).To(Equal(int64(500)))
					Expect(dba.Artist.Stats[model.RoleFromString("composer")].SongCount).To(Equal(5))
					Expect(dba.Artist.Stats[model.RoleFromString("composer")].AlbumCount).To(Equal(1))
					Expect(dba.Artist.SimilarArtists).To(HaveLen(2))
					Expect(dba.Artist.SimilarArtists[0].ID).To(Equal("2"))
					Expect(dba.Artist.SimilarArtists[0].Name).To(Equal("AC/DC"))
					Expect(dba.Artist.SimilarArtists[1].ID).To(BeEmpty())
					Expect(dba.Artist.SimilarArtists[1].Name).To(Equal("Test;With:Sep,Chars"))
				})
			})

			Describe("PostMapArgs", func() {
				It("maps empty similar artists correctly", func() {
					m := make(map[string]any)
					err := dba.PostMapArgs(m)
					Expect(err).ToNot(HaveOccurred())
					Expect(m).To(HaveKeyWithValue("similar_artists", "[]"))
				})

				It("maps similar artists and full text correctly", func() {
					artist.SimilarArtists = []model.Artist{
						{ID: "2", Name: "AC/DC"},
						{Name: "Test;With:Sep,Chars"},
					}
					m := make(map[string]any)
					err := dba.PostMapArgs(m)
					Expect(err).ToNot(HaveOccurred())
					Expect(m).To(HaveKeyWithValue("similar_artists", `[{"id":"2","name":"AC/DC"},{"name":"Test;With:Sep,Chars"}]`))
					Expect(m).To(HaveKeyWithValue("full_text", " eddie halen van"))
				})

				It("does not override empty sort_artist_name and mbz_artist_id", func() {
					m := map[string]any{
						"sort_artist_name": "",
						"mbz_artist_id":    "",
					}
					err := dba.PostMapArgs(m)
					Expect(err).ToNot(HaveOccurred())
					Expect(m).ToNot(HaveKey("sort_artist_name"))
					Expect(m).ToNot(HaveKey("mbz_artist_id"))
				})
			})
		})
	})

	Context("Admin User Operations", func() {
		var repo model.ArtistRepository

		BeforeEach(func() {
			ctx := GinkgoT().Context()
			ctx = request.WithUser(ctx, adminUser)
			repo = NewArtistRepository(ctx, GetDBXBuilder())
		})

		Describe("Basic Operations", func() {
			Describe("Count", func() {
				It("returns the number of artists in the DB", func() {
					Expect(repo.CountAll()).To(Equal(int64(2)))
				})
			})

			Describe("Exists", func() {
				It("returns true for an artist that is in the DB", func() {
					Expect(repo.Exists("3")).To(BeTrue())
				})
				It("returns false for an artist that is NOT in the DB", func() {
					Expect(repo.Exists("666")).To(BeFalse())
				})
			})

			Describe("Get", func() {
				It("retrieves existing artist data", func() {
					artist, err := repo.Get("2")
					Expect(err).ToNot(HaveOccurred())
					Expect(artist.Name).To(Equal(artistKraftwerk.Name))
				})
			})
		})

		Describe("GetIndex", func() {
			When("PreferSortTags is true", func() {
				BeforeEach(func() {
					conf.Server.PreferSortTags = true
				})
				It("returns the index when PreferSortTags is true and SortArtistName is not empty", func() {
					// Set SortArtistName to "Foo" for Beatles
					artistBeatles.SortArtistName = "Foo"
					er := repo.Put(&artistBeatles)
					Expect(er).To(BeNil())

					idx, err := repo.GetIndex(false, []int{1})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))
					Expect(idx[0].ID).To(Equal("F"))
					Expect(idx[0].Artists).To(HaveLen(1))
					Expect(idx[0].Artists[0].Name).To(Equal(artistBeatles.Name))
					Expect(idx[1].ID).To(Equal("K"))
					Expect(idx[1].Artists).To(HaveLen(1))
					Expect(idx[1].Artists[0].Name).To(Equal(artistKraftwerk.Name))

					// Restore the original value
					artistBeatles.SortArtistName = ""
					er = repo.Put(&artistBeatles)
					Expect(er).To(BeNil())
				})

				// BFR Empty SortArtistName is not saved in the DB anymore
				XIt("returns the index when PreferSortTags is true and SortArtistName is empty", func() {
					idx, err := repo.GetIndex(false, []int{1})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))
					Expect(idx[0].ID).To(Equal("B"))
					Expect(idx[0].Artists).To(HaveLen(1))
					Expect(idx[0].Artists[0].Name).To(Equal(artistBeatles.Name))
					Expect(idx[1].ID).To(Equal("K"))
					Expect(idx[1].Artists).To(HaveLen(1))
					Expect(idx[1].Artists[0].Name).To(Equal(artistKraftwerk.Name))
				})
			})

			When("PreferSortTags is false", func() {
				BeforeEach(func() {
					conf.Server.PreferSortTags = false
				})
				It("returns the index when SortArtistName is NOT empty", func() {
					// Set SortArtistName to "Foo" for Beatles
					artistBeatles.SortArtistName = "Foo"
					er := repo.Put(&artistBeatles)
					Expect(er).To(BeNil())

					idx, err := repo.GetIndex(false, []int{1})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))
					Expect(idx[0].ID).To(Equal("B"))
					Expect(idx[0].Artists).To(HaveLen(1))
					Expect(idx[0].Artists[0].Name).To(Equal(artistBeatles.Name))
					Expect(idx[1].ID).To(Equal("K"))
					Expect(idx[1].Artists).To(HaveLen(1))
					Expect(idx[1].Artists[0].Name).To(Equal(artistKraftwerk.Name))

					// Restore the original value
					artistBeatles.SortArtistName = ""
					er = repo.Put(&artistBeatles)
					Expect(er).To(BeNil())
				})

				It("returns the index when SortArtistName is empty", func() {
					idx, err := repo.GetIndex(false, []int{1})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))
					Expect(idx[0].ID).To(Equal("B"))
					Expect(idx[0].Artists).To(HaveLen(1))
					Expect(idx[0].Artists[0].Name).To(Equal(artistBeatles.Name))
					Expect(idx[1].ID).To(Equal("K"))
					Expect(idx[1].Artists).To(HaveLen(1))
					Expect(idx[1].Artists[0].Name).To(Equal(artistKraftwerk.Name))
				})
			})

			When("filtering by role", func() {
				var raw *artistRepository

				BeforeEach(func() {
					raw = repo.(*artistRepository)
					// Add stats to library_artist table since stats are now stored per-library
					composerStats := `{"composer": {"s": 1000, "m": 5, "a": 2}}`
					producerStats := `{"producer": {"s": 500, "m": 3, "a": 1}}`

					// Set Beatles as composer in library 1
					_, err := raw.executeSQL(squirrel.Insert("library_artist").
						Columns("library_id", "artist_id", "stats").
						Values(1, artistBeatles.ID, composerStats).
						Suffix("ON CONFLICT(library_id, artist_id) DO UPDATE SET stats = excluded.stats"))
					Expect(err).ToNot(HaveOccurred())

					// Set Kraftwerk as producer in library 1
					_, err = raw.executeSQL(squirrel.Insert("library_artist").
						Columns("library_id", "artist_id", "stats").
						Values(1, artistKraftwerk.ID, producerStats).
						Suffix("ON CONFLICT(library_id, artist_id) DO UPDATE SET stats = excluded.stats"))
					Expect(err).ToNot(HaveOccurred())
				})

				AfterEach(func() {
					// Clean up stats from library_artist table
					_, _ = raw.executeSQL(squirrel.Update("library_artist").
						Set("stats", "{}").
						Where(squirrel.Eq{"artist_id": artistBeatles.ID, "library_id": 1}))
					_, _ = raw.executeSQL(squirrel.Update("library_artist").
						Set("stats", "{}").
						Where(squirrel.Eq{"artist_id": artistKraftwerk.ID, "library_id": 1}))
				})

				It("returns only artists with the specified role", func() {
					idx, err := repo.GetIndex(false, []int{1}, model.RoleComposer)
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(1))
					Expect(idx[0].ID).To(Equal("B"))
					Expect(idx[0].Artists).To(HaveLen(1))
					Expect(idx[0].Artists[0].Name).To(Equal(artistBeatles.Name))
				})

				It("returns artists with any of the specified roles", func() {
					idx, err := repo.GetIndex(false, []int{1}, model.RoleComposer, model.RoleProducer)
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))

					// Find Beatles and Kraftwerk in the results
					var beatlesFound, kraftwerkFound bool
					for _, index := range idx {
						for _, artist := range index.Artists {
							if artist.Name == artistBeatles.Name {
								beatlesFound = true
							}
							if artist.Name == artistKraftwerk.Name {
								kraftwerkFound = true
							}
						}
					}
					Expect(beatlesFound).To(BeTrue())
					Expect(kraftwerkFound).To(BeTrue())
				})

				It("returns empty index when no artists have the specified role", func() {
					idx, err := repo.GetIndex(false, []int{1}, model.RoleDirector)
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(0))
				})
			})

			When("validating library IDs", func() {
				It("returns nil when no library IDs are provided", func() {
					idx, err := repo.GetIndex(false, []int{})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(BeNil())
				})

				It("returns artists when library IDs are provided (admin user sees all content)", func() {
					// Admin users can see all content when valid library IDs are provided
					idx, err := repo.GetIndex(false, []int{1})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(2))

					// With non-existent library ID, admin users see no content because no artists are associated with that library
					idx, err = repo.GetIndex(false, []int{999})
					Expect(err).ToNot(HaveOccurred())
					Expect(idx).To(HaveLen(0)) // Even admin users need valid library associations
				})
			})
		})

		Describe("Filters", func() {
			var artistWithoutAnnotation model.Artist

			BeforeEach(func() {
				// Create artist without any annotation
				artistWithoutAnnotation = model.Artist{ID: "no-annotation-artist", Name: "No Annotation Artist"}
				err := createArtistWithLibrary(repo, &artistWithoutAnnotation, 1)
				Expect(err).ToNot(HaveOccurred())
			})

			AfterEach(func() {
				if raw, ok := repo.(*artistRepository); ok {
					_, _ = raw.executeSQL(squirrel.Delete(raw.tableName).Where(squirrel.Eq{"id": artistWithoutAnnotation.ID}))
				}
			})

			Describe("starred", func() {
				It("false includes items without annotations", func() {
					res, err := repo.(model.ResourceRepository).ReadAll(rest.QueryOptions{
						Filters: map[string]any{"starred": "false"},
					})
					Expect(err).ToNot(HaveOccurred())
					artists := res.(model.Artists)

					var found bool
					for _, a := range artists {
						if a.ID == artistWithoutAnnotation.ID {
							found = true
							break
						}
					}
					Expect(found).To(BeTrue(), "Artist without annotation should be included in starred=false filter")
				})

				It("true excludes items without annotations", func() {
					res, err := repo.(model.ResourceRepository).ReadAll(rest.QueryOptions{
						Filters: map[string]any{"starred": "true"},
					})
					Expect(err).ToNot(HaveOccurred())
					artists := res.(model.Artists)

					for _, a := range artists {
						Expect(a.ID).ToNot(Equal(artistWithoutAnnotation.ID))
					}
				})
			})
		})

		Describe("MBID and Text Search", func() {
			var lib2 model.Library
			var lr model.LibraryRepository
			var restrictedUser model.User
			var restrictedRepo model.ArtistRepository
			var headlessRepo model.ArtistRepository

			BeforeEach(func() {
				// Set up headless repo (no user context)
				headlessRepo = NewArtistRepository(context.Background(), GetDBXBuilder())

				// Create library for testing access restrictions
				lib2 = model.Library{ID: 0, Name: "Artist Test Library", Path: "/artist/test/lib"}
				lr = NewLibraryRepository(request.WithUser(GinkgoT().Context(), adminUser), GetDBXBuilder())
				err := lr.Put(&lib2)
				Expect(err).ToNot(HaveOccurred())

				// Create a user with access to only library 1
				restrictedUser = createUserWithLibraries("search_user", []int{1})

				// Create repository context for the restricted user
				ctx := request.WithUser(GinkgoT().Context(), restrictedUser)
				restrictedRepo = NewArtistRepository(ctx, GetDBXBuilder())

				// Ensure both test artists are associated with library 1
				err = lr.AddArtist(1, artistBeatles.ID)
				Expect(err).ToNot(HaveOccurred())
				err = lr.AddArtist(1, artistKraftwerk.ID)
				Expect(err).ToNot(HaveOccurred())

				// Create the restricted user in the database
				ur := NewUserRepository(request.WithUser(GinkgoT().Context(), adminUser), GetDBXBuilder())
				err = ur.Put(&restrictedUser)
				Expect(err).ToNot(HaveOccurred())
				err = ur.SetUserLibraries(restrictedUser.ID, []int{1})
				Expect(err).ToNot(HaveOccurred())
			})

			AfterEach(func() {
				// Clean up library 2
				lr := NewLibraryRepository(request.WithUser(GinkgoT().Context(), adminUser), GetDBXBuilder())
				_ = lr.(*libraryRepository).delete(squirrel.Eq{"id": lib2.ID})
			})

			DescribeTable("MBID search behavior across different user types",
				func(testRepo *model.ArtistRepository, shouldFind bool, testDesc string) {
					// Create test artist with MBID
					artistWithMBID := createTestArtistWithMBID("test-mbid-artist", "Test MBID Artist", "550e8400-e29b-41d4-a716-446655440010")

					err := createArtistWithLibrary(*testRepo, &artistWithMBID, 1)
					Expect(err).ToNot(HaveOccurred())

					// Test the search
					results, err := (*testRepo).Search("550e8400-e29b-41d4-a716-446655440010", 0, 10)
					Expect(err).ToNot(HaveOccurred())

					if shouldFind {
						Expect(results).To(HaveLen(1), testDesc)
						Expect(results[0].ID).To(Equal("test-mbid-artist"))
					} else {
						Expect(results).To(BeEmpty(), testDesc)
					}

					// Clean up
					if raw, ok := (*testRepo).(*artistRepository); ok {
						_, _ = raw.executeSQL(squirrel.Delete(raw.tableName).Where(squirrel.Eq{"id": artistWithMBID.ID}))
					}
				},
				Entry("Admin user can find artist by MBID", &repo, true, "Admin should find MBID artist"),
				Entry("Restricted user can find artist by MBID in accessible library", &restrictedRepo, true, "Restricted user should find MBID artist in accessible library"),
				Entry("Headless process can find artist by MBID", &headlessRepo, true, "Headless process should find MBID artist"),
			)

			It("prevents restricted user from finding artist by MBID when not in accessible library", func() {
				// Create an artist in library 2 (not accessible to restricted user)
				inaccessibleArtist := createTestArtistWithMBID("inaccessible-mbid-artist", "Inaccessible MBID Artist", "a74b1b7f-71a5-4011-9441-d0b5e4122711")
				err := repo.Put(&inaccessibleArtist)
				Expect(err).ToNot(HaveOccurred())

				// Add to library 2 (not accessible to restricted user)
				err = lr.AddArtist(lib2.ID, inaccessibleArtist.ID)
				Expect(err).ToNot(HaveOccurred())

				// Restricted user should not find this artist
				results, err := restrictedRepo.Search("a74b1b7f-71a5-4011-9441-d0b5e4122711", 0, 10)
				Expect(err).ToNot(HaveOccurred())
				Expect(results).To(BeEmpty())

				// But admin should find it
				results, err = repo.Search("a74b1b7f-71a5-4011-9441-d0b5e4122711", 0, 10)
				Expect(err).ToNot(HaveOccurred())
				Expect(results).To(HaveLen(1))

				// Clean up
				if raw, ok := repo.(*artistRepository); ok {
					_, _ = raw.executeSQL(squirrel.Delete(raw.tableName).Where(squirrel.Eq{"id": inaccessibleArtist.ID}))
				}
			})

			Context("Text Search", func() {
				It("allows admin to find artists by name regardless of library", func() {
					results, err := repo.Search("Beatles", 0, 10)
					Expect(err).ToNot(HaveOccurred())
					Expect(results).To(HaveLen(1))
					Expect(results[0].Name).To(Equal("The Beatles"))
				})

				It("correctly prevents restricted user from finding artists by name when not in accessible library", func() {
					// Create an artist in library 2 (not accessible to restricted user)
					inaccessibleArtist := model.Artist{
						ID:   "inaccessible-text-artist",
						Name: "Unique Search Name Artist",
					}
					err := repo.Put(&inaccessibleArtist)
					Expect(err).ToNot(HaveOccurred())

					// Add to library 2 (not accessible to restricted user)
					err = lr.AddArtist(lib2.ID, inaccessibleArtist.ID)
					Expect(err).ToNot(HaveOccurred())

					// Restricted user should not find this artist
					results, err := restrictedRepo.Search("Unique Search Name", 0, 10)
					Expect(err).ToNot(HaveOccurred())
					Expect(results).To(BeEmpty(), "Text search should respect library filtering")

					// Clean up
					if raw, ok := repo.(*artistRepository); ok {
						_, _ = raw.executeSQL(squirrel.Delete(raw.tableName).Where(squirrel.Eq{"id": inaccessibleArtist.ID}))
					}
				})
			})

			Context("Headless Processes (No User Context)", func() {
				It("should see all artists from all libraries when no user is in context", func() {
					// Add artists to different libraries
					err := lr.AddArtist(lib2.ID, artistBeatles.ID)
					Expect(err).ToNot(HaveOccurred())

					// Headless processes should see all artists regardless of library
					artists, err := headlessRepo.GetAll()
					Expect(err).ToNot(HaveOccurred())

					// Should see all artists from all libraries
					found := false
					for _, artist := range artists {
						if artist.ID == artistBeatles.ID {
							found = true
							break
						}
					}
					Expect(found).To(BeTrue(), "Headless process should see artists from all libraries")
				})

				It("should allow headless processes to apply explicit library_id filters", func() {
					// Add artists to different libraries
					err := lr.AddArtist(lib2.ID, artistBeatles.ID)
					Expect(err).ToNot(HaveOccurred())

					// Filter by specific library
					artists, err := headlessRepo.GetAll(model.QueryOptions{
						Filters: squirrel.Eq{"library_id": lib2.ID},
					})
					Expect(err).ToNot(HaveOccurred())

					// Should see only artists from the specified library
					for _, artist := range artists {
						if artist.ID == artistBeatles.ID {
							return // Found the expected artist
						}
					}
					Expect(false).To(BeTrue(), "Should find artist from specified library")
				})

				It("should get individual artists when no user is in context", func() {
					// Add artist to a library
					err := lr.AddArtist(lib2.ID, artistBeatles.ID)
					Expect(err).ToNot(HaveOccurred())

					// Headless process should be able to get the artist
					artist, err := headlessRepo.Get(artistBeatles.ID)
					Expect(err).ToNot(HaveOccurred())
					Expect(artist.ID).To(Equal(artistBeatles.ID))
				})
			})
		})

		Describe("Admin User Library Access", func() {
			It("sees all artists regardless of library permissions", func() {
				count, err := repo.CountAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(count).To(Equal(int64(2)))

				artists, err := repo.GetAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(artists).To(HaveLen(2))

				exists, err := repo.Exists(artistBeatles.ID)
				Expect(err).ToNot(HaveOccurred())
				Expect(exists).To(BeTrue())
			})
		})

		Describe("Missing Artist Handling", func() {
			var missingArtist model.Artist
			var raw *artistRepository

			BeforeEach(func() {
				raw = repo.(*artistRepository)
				missingArtist = model.Artist{ID: "missing_test", Name: "Missing Artist", OrderArtistName: "missing artist"}

				// Create and mark as missing
				err := createArtistWithLibrary(repo, &missingArtist, 1)
				Expect(err).ToNot(HaveOccurred())

				_, err = raw.executeSQL(squirrel.Update(raw.tableName).Set("missing", true).Where(squirrel.Eq{"id": missingArtist.ID}))
				Expect(err).ToNot(HaveOccurred())
			})

			AfterEach(func() {
				_, _ = raw.executeSQL(squirrel.Delete(raw.tableName).Where(squirrel.Eq{"id": missingArtist.ID}))
			})

			It("missing artists are never returned by search", func() {
				// Should see missing artist in GetAll by default for admin users
				artists, err := repo.GetAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(artists).To(HaveLen(3)) // Including the missing artist

				// Search never returns missing artists (hardcoded behavior)
				results, err := repo.Search("Missing Artist", 0, 10)
				Expect(err).ToNot(HaveOccurred())
				Expect(results).To(BeEmpty())
			})
		})
	})

	Context("Regular User Operations", func() {
		var restrictedRepo model.ArtistRepository
		var unauthorizedUser model.User

		BeforeEach(func() {
			// Create a user without access to any libraries
			unauthorizedUser = model.User{ID: "restricted_user", UserName: "restricted", Name: "Restricted User", Email: "restricted@test.com", IsAdmin: false}

			// Create repository context for the unauthorized user
			ctx := GinkgoT().Context()
			ctx = request.WithUser(ctx, unauthorizedUser)
			restrictedRepo = NewArtistRepository(ctx, GetDBXBuilder())
		})

		Describe("Library Access Restrictions", func() {
			It("CountAll returns 0 for users without library access", func() {
				count, err := restrictedRepo.CountAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(count).To(Equal(int64(0)))
			})

			It("GetAll returns empty list for users without library access", func() {
				artists, err := restrictedRepo.GetAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(artists).To(BeEmpty())
			})

			It("Exists returns false for existing artists when user has no library access", func() {
				// These artists exist in the DB but the user has no access to them
				exists, err := restrictedRepo.Exists(artistBeatles.ID)
				Expect(err).ToNot(HaveOccurred())
				Expect(exists).To(BeFalse())

				exists, err = restrictedRepo.Exists(artistKraftwerk.ID)
				Expect(err).ToNot(HaveOccurred())
				Expect(exists).To(BeFalse())
			})

			It("Get returns ErrNotFound for existing artists when user has no library access", func() {
				_, err := restrictedRepo.Get(artistBeatles.ID)
				Expect(err).To(Equal(model.ErrNotFound))

				_, err = restrictedRepo.Get(artistKraftwerk.ID)
				Expect(err).To(Equal(model.ErrNotFound))
			})

			It("Search returns empty results for users without library access", func() {
				results, err := restrictedRepo.Search("Beatles", 0, 10)
				Expect(err).ToNot(HaveOccurred())
				Expect(results).To(BeEmpty())

				results, err = restrictedRepo.Search("Kraftwerk", 0, 10)
				Expect(err).ToNot(HaveOccurred())
				Expect(results).To(BeEmpty())
			})

			It("GetIndex returns empty index for users without library access", func() {
				idx, err := restrictedRepo.GetIndex(false, []int{1})
				Expect(err).ToNot(HaveOccurred())
				Expect(idx).To(HaveLen(0))
			})
		})

		Context("when user gains library access", func() {
			BeforeEach(func() {
				ctx := GinkgoT().Context()
				// Give the user access to library 1
				ur := NewUserRepository(request.WithUser(ctx, adminUser), GetDBXBuilder())

				// First create the user if not exists
				err := ur.Put(&unauthorizedUser)
				Expect(err).ToNot(HaveOccurred())

				// Then add library access
				err = ur.SetUserLibraries(unauthorizedUser.ID, []int{1})
				Expect(err).ToNot(HaveOccurred())

				// Update the user object with the libraries to simulate middleware behavior
				libraries, err := ur.GetUserLibraries(unauthorizedUser.ID)
				Expect(err).ToNot(HaveOccurred())
				unauthorizedUser.Libraries = libraries

				// Recreate repository context with updated user
				ctx = request.WithUser(ctx, unauthorizedUser)
				restrictedRepo = NewArtistRepository(ctx, GetDBXBuilder())
			})

			AfterEach(func() {
				// Clean up: remove the user's library access
				ur := NewUserRepository(request.WithUser(GinkgoT().Context(), adminUser), GetDBXBuilder())
				_ = ur.SetUserLibraries(unauthorizedUser.ID, []int{})
			})

			It("CountAll returns correct count after gaining access", func() {
				count, err := restrictedRepo.CountAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(count).To(Equal(int64(2))) // Beatles and Kraftwerk
			})

			It("GetAll returns artists after gaining access", func() {
				artists, err := restrictedRepo.GetAll()
				Expect(err).ToNot(HaveOccurred())
				Expect(artists).To(HaveLen(2))

				var names []string
				for _, artist := range artists {
					names = append(names, artist.Name)
				}
				Expect(names).To(ContainElements("The Beatles", "Kraftwerk"))
			})

			It("Exists returns true for accessible artists", func() {
				exists, err := restrictedRepo.Exists(artistBeatles.ID)
				Expect(err).ToNot(HaveOccurred())
				Expect(exists).To(BeTrue())

				exists, err = restrictedRepo.Exists(artistKraftwerk.ID)
				Expect(err).ToNot(HaveOccurred())
				Expect(exists).To(BeTrue())
			})

			It("GetIndex returns artists with proper library filtering", func() {
				// With valid library access, should see artists
				idx, err := restrictedRepo.GetIndex(false, []int{1})
				Expect(err).ToNot(HaveOccurred())
				Expect(idx).To(HaveLen(2))

				// With non-existent library ID, should see nothing (non-admin user)
				idx, err = restrictedRepo.GetIndex(false, []int{999})
				Expect(err).ToNot(HaveOccurred())
				Expect(idx).To(HaveLen(0))
			})
		})
	})
})

// Helper function to create an artist with proper library association.
// This ensures test artists always have library_artist associations to avoid orphaned artists in tests.
func createArtistWithLibrary(repo model.ArtistRepository, artist *model.Artist, libraryID int) error {
	err := repo.Put(artist)
	if err != nil {
		return err
	}

	// Add the artist to the specified library
	lr := NewLibraryRepository(request.WithUser(GinkgoT().Context(), adminUser), GetDBXBuilder())
	return lr.AddArtist(libraryID, artist.ID)
}
