package services_test

import (
	"context"
	"testing"

	"github.com/andyleap/hnh-map/internal/app"
	"github.com/andyleap/hnh-map/internal/app/services"
	"github.com/andyleap/hnh-map/internal/app/store"
	"go.etcd.io/bbolt"
)

func newTestAdmin(t *testing.T) (*services.AdminService, *store.Store) {
	t.Helper()
	db := newTestDB(t)
	st := store.New(db)
	mapSvc := services.NewMapService(services.MapServiceDeps{
		Store:       st,
		GridStorage: t.TempDir(),
		GridUpdates: &app.Topic[app.TileData]{},
	})
	return services.NewAdminService(st, mapSvc), st
}

func TestListUsers_Empty(t *testing.T) {
	admin, _ := newTestAdmin(t)
	users, err := admin.ListUsers(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(users) != 0 {
		t.Fatalf("expected 0 users, got %d", len(users))
	}
}

func TestListUsers_WithUsers(t *testing.T) {
	admin, st := newTestAdmin(t)
	ctx := context.Background()
	createUser(t, st, "alice", "pass", nil)
	createUser(t, st, "bob", "pass", nil)

	users, err := admin.ListUsers(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(users) != 2 {
		t.Fatalf("expected 2 users, got %d", len(users))
	}
}

func TestAdminGetUser_Found(t *testing.T) {
	admin, st := newTestAdmin(t)
	createUser(t, st, "alice", "pass", app.Auths{app.AUTH_MAP, app.AUTH_UPLOAD})

	auths, found := admin.GetUser(context.Background(), "alice")
	if !found {
		t.Fatal("expected found")
	}
	if !auths.Has(app.AUTH_MAP) {
		t.Fatal("expected map auth")
	}
}

func TestAdminGetUser_NotFound(t *testing.T) {
	admin, _ := newTestAdmin(t)
	_, found := admin.GetUser(context.Background(), "ghost")
	if found {
		t.Fatal("expected not found")
	}
}

func TestCreateOrUpdateUser_New(t *testing.T) {
	admin, _ := newTestAdmin(t)
	ctx := context.Background()

	_, err := admin.CreateOrUpdateUser(ctx, "bob", "secret", app.Auths{app.AUTH_MAP})
	if err != nil {
		t.Fatal(err)
	}

	auths, found := admin.GetUser(ctx, "bob")
	if !found {
		t.Fatal("expected user to exist")
	}
	if !auths.Has(app.AUTH_MAP) {
		t.Fatal("expected map auth")
	}
}

func TestCreateOrUpdateUser_Update(t *testing.T) {
	admin, st := newTestAdmin(t)
	ctx := context.Background()
	createUser(t, st, "alice", "old", app.Auths{app.AUTH_MAP})

	_, err := admin.CreateOrUpdateUser(ctx, "alice", "new", app.Auths{app.AUTH_ADMIN, app.AUTH_MAP})
	if err != nil {
		t.Fatal(err)
	}

	auths, found := admin.GetUser(ctx, "alice")
	if !found {
		t.Fatal("expected user")
	}
	if !auths.Has(app.AUTH_ADMIN) {
		t.Fatal("expected admin auth after update")
	}
}

func TestCreateOrUpdateUser_AdminBootstrap(t *testing.T) {
	admin, _ := newTestAdmin(t)
	ctx := context.Background()

	adminCreated, err := admin.CreateOrUpdateUser(ctx, "admin", "pass", app.Auths{app.AUTH_ADMIN})
	if err != nil {
		t.Fatal(err)
	}
	if !adminCreated {
		t.Fatal("expected adminCreated=true for new admin user")
	}

	adminCreated, err = admin.CreateOrUpdateUser(ctx, "admin", "pass2", app.Auths{app.AUTH_ADMIN})
	if err != nil {
		t.Fatal(err)
	}
	if adminCreated {
		t.Fatal("expected adminCreated=false for existing admin user")
	}
}

func TestDeleteUser(t *testing.T) {
	admin, st := newTestAdmin(t)
	ctx := context.Background()
	createUser(t, st, "alice", "pass", app.Auths{app.AUTH_UPLOAD})

	auth := services.NewAuthService(st)
	auth.GenerateTokenForUser(ctx, "alice")

	if err := admin.DeleteUser(ctx, "alice"); err != nil {
		t.Fatal(err)
	}

	_, found := admin.GetUser(ctx, "alice")
	if found {
		t.Fatal("expected user to be deleted")
	}
}

func TestGetSettings_Defaults(t *testing.T) {
	admin, _ := newTestAdmin(t)
	prefix, defaultHide, title, err := admin.GetSettings(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if prefix != "" || defaultHide || title != "" {
		t.Fatalf("expected empty defaults, got prefix=%q defaultHide=%v title=%q", prefix, defaultHide, title)
	}
}

func TestUpdateSettings(t *testing.T) {
	admin, _ := newTestAdmin(t)
	ctx := context.Background()

	p := "pfx"
	dh := true
	ti := "My Map"
	if err := admin.UpdateSettings(ctx, &p, &dh, &ti); err != nil {
		t.Fatal(err)
	}

	prefix, defaultHide, title, err := admin.GetSettings(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if prefix != "pfx" {
		t.Fatalf("expected pfx, got %s", prefix)
	}
	if !defaultHide {
		t.Fatal("expected defaultHide=true")
	}
	if title != "My Map" {
		t.Fatalf("expected My Map, got %s", title)
	}

	dh2 := false
	if err := admin.UpdateSettings(ctx, nil, &dh2, nil); err != nil {
		t.Fatal(err)
	}
	_, defaultHide2, _, _ := admin.GetSettings(ctx)
	if defaultHide2 {
		t.Fatal("expected defaultHide=false after update")
	}
}

func TestListMaps_Empty(t *testing.T) {
	admin, _ := newTestAdmin(t)
	maps, err := admin.ListMaps(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(maps) != 0 {
		t.Fatalf("expected 0 maps, got %d", len(maps))
	}
}

func TestMapCRUD(t *testing.T) {
	admin, _ := newTestAdmin(t)
	ctx := context.Background()

	if err := admin.UpdateMap(ctx, 1, "world", false, false); err != nil {
		t.Fatal(err)
	}

	mi, found := admin.GetMap(ctx, 1)
	if !found || mi == nil {
		t.Fatal("expected map")
	}
	if mi.Name != "world" {
		t.Fatalf("expected world, got %s", mi.Name)
	}

	maps, err := admin.ListMaps(ctx)
	if err != nil {
		t.Fatal(err)
	}
	if len(maps) != 1 {
		t.Fatalf("expected 1 map, got %d", len(maps))
	}
}

func TestToggleMapHidden(t *testing.T) {
	admin, _ := newTestAdmin(t)
	ctx := context.Background()

	admin.UpdateMap(ctx, 1, "world", false, false)

	mi, err := admin.ToggleMapHidden(ctx, 1)
	if err != nil {
		t.Fatal(err)
	}
	if !mi.Hidden {
		t.Fatal("expected hidden=true after toggle")
	}

	mi, err = admin.ToggleMapHidden(ctx, 1)
	if err != nil {
		t.Fatal(err)
	}
	if mi.Hidden {
		t.Fatal("expected hidden=false after second toggle")
	}
}

func TestWipe(t *testing.T) {
	admin, st := newTestAdmin(t)
	ctx := context.Background()

	st.Update(ctx, func(tx *bbolt.Tx) error {
		st.PutGrid(tx, "g1", []byte("data"))
		st.PutMap(tx, 1, []byte("data"))
		st.PutTile(tx, 1, 0, "0_0", []byte("data"))
		st.CreateMarkersBuckets(tx)
		return nil
	})

	if err := admin.Wipe(ctx); err != nil {
		t.Fatal(err)
	}

	st.View(ctx, func(tx *bbolt.Tx) error {
		if st.GetGrid(tx, "g1") != nil {
			t.Fatal("expected grids wiped")
		}
		if st.GetMap(tx, 1) != nil {
			t.Fatal("expected maps wiped")
		}
		if st.GetTile(tx, 1, 0, "0_0") != nil {
			t.Fatal("expected tiles wiped")
		}
		if st.GetMarkersGridBucket(tx) != nil {
			t.Fatal("expected markers wiped")
		}
		return nil
	})
}

func TestGetMap_NotFound(t *testing.T) {
	admin, _ := newTestAdmin(t)
	_, found := admin.GetMap(context.Background(), 999)
	if found {
		t.Fatal("expected not found")
	}
}