package service_test

import (
	"context"
	"testing"
	"time"

	roomv1 "hyapp.local/api/proto/room/v1"
	"hyapp/pkg/appcode"
	"hyapp/services/room-service/internal/integration"
	roomservice "hyapp/services/room-service/internal/room/service"
	"hyapp/services/room-service/internal/router"
	"hyapp/services/room-service/internal/testutil/mysqltest"
)

func TestRegionalPinOrdersPublicRoomList(t *testing.T) {
	ctx := context.Background()
	repository := mysqltest.NewRepository(t)
	svc := roomservice.New(roomservice.Config{
		NodeID:         "node-pin-test",
		LeaseTTL:       10 * time.Second,
		RankLimit:      20,
		SnapshotEveryN: 1,
	}, router.NewMemoryDirectory(), repository, followTestWallet{}, integration.NewNoopRoomEventPublisher(), integration.NewNoopOutboxPublisher())

	createPinnedListRoom(t, ctx, svc, "room-pin-low", "pin-low", 3001, 9001)
	createPinnedListRoom(t, ctx, svc, "room-hot-high", "hot-high", 3002, 9001)
	createPinnedListRoom(t, ctx, svc, "room-hot-mid", "hot-mid", 3003, 9001)
	repository.SetRoomSortScore("room-pin-low", 10)
	repository.SetRoomSortScore("room-hot-high", 300)
	repository.SetRoomSortScore("room-hot-mid", 200)
	repository.PinRoom("room-pin-low", 9001, 99, time.Now().UTC().Add(24*time.Hour).UnixMilli())

	firstPage, err := svc.ListRooms(ctx, &roomv1.ListRoomsRequest{
		Meta:            &roomv1.RequestMeta{AppCode: appcode.Default},
		ViewerUserId:    4001,
		VisibleRegionId: 9001,
		Tab:             "hot",
		Limit:           1,
	})
	if err != nil {
		t.Fatalf("list pinned first page failed: %v", err)
	}
	if len(firstPage.GetRooms()) != 1 || firstPage.GetRooms()[0].GetRoomId() != "room-pin-low" {
		t.Fatalf("regional pin must be first even with lower hot score: %+v", firstPage.GetRooms())
	}
	if firstPage.GetNextCursor() == "" {
		t.Fatalf("first page should return cursor")
	}

	secondPage, err := svc.ListRooms(ctx, &roomv1.ListRoomsRequest{
		Meta:            &roomv1.RequestMeta{AppCode: appcode.Default},
		ViewerUserId:    4001,
		VisibleRegionId: 9001,
		Tab:             "hot",
		Limit:           2,
		Cursor:          firstPage.GetNextCursor(),
	})
	if err != nil {
		t.Fatalf("list pinned second page failed: %v", err)
	}
	if got := roomIDs(secondPage.GetRooms()); len(got) != 2 || got[0] != "room-hot-high" || got[1] != "room-hot-mid" {
		t.Fatalf("second page should continue with regular hot order, got %+v", got)
	}
}

func createPinnedListRoom(t *testing.T, ctx context.Context, svc *roomservice.Service, roomID string, shortID string, ownerID int64, regionID int64) {
	t.Helper()

	if _, err := svc.CreateRoom(ctx, &roomv1.CreateRoomRequest{
		Meta:            roomservice.NewRequestMeta(roomID, ownerID),
		SeatCount:       10,
		Mode:            "voice",
		VisibleRegionId: regionID,
		RoomName:        roomID,
		RoomShortId:     shortID,
	}); err != nil {
		t.Fatalf("create room %s failed: %v", roomID, err)
	}
}

func roomIDs(rooms []*roomv1.RoomListItem) []string {
	ids := make([]string, 0, len(rooms))
	for _, room := range rooms {
		ids = append(ids, room.GetRoomId())
	}
	return ids
}