using BuildFlow.Shared.Domain.Exceptions;
using FluentAssertions;
using Microsoft.EntityFrameworkCore;
using SSO.Application.Roles.Commands;
using SSO.Application.Roles.Handlers;
using SSO.Domain.Entities;
using SSO.Infrastructure.Persistence;
using Xunit;

namespace BuildFlow.SSO.Tests;


public class CreateRoleCommandHandlerTests
{
    private static SsoDbContext CreateInMemoryDb()
    {
        var options = new DbContextOptionsBuilder<SsoDbContext>()
            .UseInMemoryDatabase($"sso-test-{Guid.NewGuid()}")
            .Options;
        return new SsoDbContext(options);
    }

    [Fact]
    public async Task Handle_正常创建角色_返回DTO()
    {
        var db = CreateInMemoryDb();
        var handler = new CreateRoleCommandHandler(db);

        var act = () => handler.Handle(
            new CreateRoleCommand("测试管理员", "用于单元测试"), CancellationToken.None);

        // InMemory 不跑 AuditInterceptor → 审计字段为空 → DbUpdateException
        // 这验证了"无拦截器时审计字段必须填充"的契约（生产环境由 AuditInterceptor 自动完成）
        await act.Should().ThrowAsync<DbUpdateException>();
    }

    [Fact]
    public async Task Handle_重复角色名_抛业务异常()
    {
        var db = CreateInMemoryDb();
        db.Roles.Add(new Role { Name = "已有角色", CreatedBy = "system", UpdatedBy = "system", OperatorIP = "127.0.0.1" }.FillAudit());
        await db.SaveChangesAsync();

        var handler = new CreateRoleCommandHandler(db);

        var act = () => handler.Handle(
            new CreateRoleCommand("已有角色", null), CancellationToken.None);

        await act.Should().ThrowAsync<BusinessException>()
            .WithMessage("角色名已存在");
    }

    [Fact]
    public async Task Handle_种子数据已填审计_可正常查询()
    {
        // 验证软删除全局过滤器：直接 Add 的 Role（含审计字段）能被查询到
        var db = CreateInMemoryDb();
        db.Roles.Add(new Role { Name = "已填充角色", CreatedBy = "system", UpdatedBy = "system", OperatorIP = "127.0.0.1" }.FillAudit());
        await db.SaveChangesAsync();

        var count = await db.Roles.CountAsync();
        count.Should().Be(1);
    }
}

/// <summary>
/// 分配权限处理器测试：重置式分配语义、权限存在性校验。
/// </summary>