package watchsync

import "testing"

type stubProvider struct {
	key          string
	displayName  string
	capabilities Capabilities
}

func (s stubProvider) Key() string                { return s.key }
func (s stubProvider) DisplayName() string        { return s.displayName }
func (s stubProvider) Capabilities() Capabilities { return s.capabilities }

func TestRegistryRejectsDuplicateProvider(t *testing.T) {
	registry := NewRegistry()
	provider := stubProvider{key: "trakt", displayName: "Trakt"}

	if err := registry.Register(provider); err != nil {
		t.Fatalf("register first provider: %v", err)
	}
	if err := registry.Register(provider); err == nil {
		t.Fatal("expected duplicate provider to be rejected")
	}
}

type stubPluginProvider struct{ stubProvider }

func (stubPluginProvider) ProviderSource() string { return providerSourcePlugin }

func TestRegistryReplacePluginProviders(t *testing.T) {
	registry := NewRegistry()
	if err := registry.Register(stubProvider{key: "trakt"}); err != nil {
		t.Fatal(err)
	}
	if err := registry.ReplacePluginProviders([]Provider{stubPluginProvider{stubProvider{key: testPluginCapabilityID}}}); err != nil {
		t.Fatal(err)
	}
	if _, ok := registry.Get("anilist"); !ok {
		t.Fatal("plugin provider was not registered")
	}
	if err := registry.ReplacePluginProviders([]Provider{stubPluginProvider{stubProvider{key: "simkl-plugin"}}}); err != nil {
		t.Fatal(err)
	}
	if _, ok := registry.Get("anilist"); ok {
		t.Fatal("stale plugin provider was not removed")
	}
	if _, ok := registry.Get("trakt"); !ok {
		t.Fatal("built-in provider was removed")
	}
}

func TestRegistryReplacePluginProvidersRejectsBuiltinCollision(t *testing.T) {
	registry := NewRegistry()
	if err := registry.Register(stubProvider{key: "trakt"}); err != nil {
		t.Fatal(err)
	}
	if err := registry.ReplacePluginProviders([]Provider{stubPluginProvider{stubProvider{key: "trakt"}}}); err == nil {
		t.Fatal("expected built-in collision to fail")
	}
}

func TestRegistryListWithCapabilities(t *testing.T) {
	registry := NewRegistry()

	if err := registry.Register(stubProvider{
		key:         "trakt",
		displayName: "Trakt",
		capabilities: Capabilities{
			ImportWatched:    true,
			ImportProgress:   true,
			ExportWatched:    true,
			ScrobblePlayback: true,
		},
	}); err != nil {
		t.Fatalf("register trakt: %v", err)
	}
	if err := registry.Register(stubProvider{
		key:         "letterboxd",
		displayName: "Letterboxd",
		capabilities: Capabilities{
			ImportWatched: true,
			ExportWatched: true,
		},
	}); err != nil {
		t.Fatalf("register letterboxd: %v", err)
	}

	summaries := registry.List()
	if len(summaries) != 2 {
		t.Fatalf("got %d summaries, want 2", len(summaries))
	}
	if summaries[0].Key != "letterboxd" || summaries[1].Key != "trakt" {
		t.Fatalf("summaries are not sorted by provider key: %#v", summaries)
	}
	if summaries[0].DisplayName != "Letterboxd" {
		t.Fatalf("got first provider display name %q, want Letterboxd", summaries[0].DisplayName)
	}
	if summaries[0].Capabilities != (Capabilities{ImportWatched: true, ExportWatched: true}) {
		t.Fatalf("unexpected letterboxd capabilities: %#v", summaries[0].Capabilities)
	}
	if summaries[1].Capabilities != (Capabilities{
		ImportWatched:    true,
		ImportProgress:   true,
		ExportWatched:    true,
		ScrobblePlayback: true,
	}) {
		t.Fatalf("unexpected trakt capabilities: %#v", summaries[1].Capabilities)
	}
}