using BuildFlow.Shared.Domain.Errors;
using FluentAssertions;
using Microsoft.EntityFrameworkCore;
using Workflow.Application.Features.WorkflowDefinitions.Commands;
using Workflow.Application.Features.WorkflowDefinitions.Handlers;
using Workflow.Domain.Entities;
using Workflow.Domain.Enums;
using Xunit;

namespace BuildFlow.Workflow.Tests.Handlers;

public class DisableWorkflowDefinitionHandlerTests
{
    private static WorkflowDbContext CreateDbContext()
    {
        var options = new DbContextOptionsBuilder<WorkflowDbContext>()
            .UseInMemoryDatabase(Guid.NewGuid().ToString())
            .Options;
        var db = new WorkflowDbContext(options);
        db.SavingChanges += AuditStub.OnSave;
        return db;
    }

    [Fact]
    public async Task DisableWorkflowDefinition_SetsIsEnabledFalse()
    {
        await using var db = CreateDbContext();
        var id = Guid.NewGuid();
        db.WorkflowDefinitions.Add(new WorkflowDefinition
        {
            Id = id,
            Name = "Def",
            Code = "def",
            Status = DefinitionStatus.Published,
            Version = 1
        });
        await db.SaveChangesAsync();

        var handler = new DisableWorkflowDefinitionCommandHandler(db);
        await handler.Handle(new DisableWorkflowDefinitionCommand(id), CancellationToken.None);

        var stored = await db.WorkflowDefinitions.FindAsync(id);
        stored!.IsEnabled.Should().BeFalse();
    }

    [Fact]
    public async Task DisableWorkflowDefinition_Missing_ThrowsNotFound()
    {
        await using var db = CreateDbContext();
        var handler = new DisableWorkflowDefinitionCommandHandler(db);

        var act = async () => await handler.Handle(new DisableWorkflowDefinitionCommand(Guid.NewGuid()), CancellationToken.None);

        var ex = await act.Should().ThrowAsync<NotFoundException>();
        ex.Which.Code.Should().Be(ErrorCode.NotFound);
    }
}