using Musify.Application.PlayLists;
using Musify.Application.Tests.TestSupport;
using Xunit;

namespace Musify.Application.Tests.PlayLists
{
    public sealed class GetPlayListsQueryHandlerTests : HandlerTestBase
    {
        private GetPlayListsQueryHandler CreateHandler() => new(Database);

        [Fact]
        public async Task Handle_ReturnsEveryPlayListPaged()
        {
            var owner = TestEntities.User();
            await SeedAsync(owner, TestEntities.PlayList(owner.Id, "One"), TestEntities.PlayList(owner.Id, "Two"));

            var result = await CreateHandler().Handle(new GetPlayListsQuery(PageNumber: 1, PageSize: 10), TestContext.Current.CancellationToken);

            Assert.False(result.IsError);
            Assert.Equal(2, result.Value.TotalItemCount);
        }

        [Fact]
        public async Task Handle_NoPlayLists_ReturnsEmptyPage()
        {
            var result = await CreateHandler().Handle(new GetPlayListsQuery(PageNumber: 1, PageSize: 10), TestContext.Current.CancellationToken);

            Assert.False(result.IsError);
            Assert.Empty(result.Value.Items);
        }
    }
}