using PnvPanel.Application.Instructions;
using PnvPanel.Application.Tests.TestSupport;
using PnvPanel.Domain.Instructions;
using Xunit;

namespace PnvPanel.Application.Tests.Instructions;

public class ListInstructionTabsQueryHandlerTests
{
    [Fact]
    public async Task Handle_ReturnsTabsOrderedBySortOrder()
    {
        using var dbContext = InMemoryDbContextFactory.Create();
        dbContext.InstructionTabs.AddRange(
            InstructionTab.Create("Второй", "текст", 20),
            InstructionTab.Create("Первый", "текст", 10),
            InstructionTab.Create("Третий", "текст", 30)
        );
        await dbContext.SaveChangesAsync(CancellationToken.None);

        var handler = new ListInstructionTabsQueryHandler(dbContext);

        var result = await handler.Handle(new ListInstructionTabsQuery(), CancellationToken.None);

        Assert.True(result.IsSuccess);
        Assert.Equal(["Первый", "Второй", "Третий"], result.Value.Select(t => t.Title));
    }

    [Fact]
    public async Task Handle_WhenNoTabs_ReturnsEmptyList()
    {
        using var dbContext = InMemoryDbContextFactory.Create();
        var handler = new ListInstructionTabsQueryHandler(dbContext);

        var result = await handler.Handle(new ListInstructionTabsQuery(), CancellationToken.None);

        Assert.True(result.IsSuccess);
        Assert.Empty(result.Value);
    }
}