using System.Net;
using System.Net.Http.Json;
using System.Text.Json;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using NSubstitute;
using Xunit;
using XiangYi.AppApi;
using XiangYi.Application.DTOs.Requests;
using XiangYi.Application.DTOs.Responses;
using XiangYi.Application.Interfaces;

namespace XiangYi.Api.Tests.AppApi;

/// <summary>
/// 认证控制器集成测试
/// </summary>
public class AuthControllerIntegrationTests : IClassFixture<WebApplicationFactory<IAppApiMarker>>
{
    private readonly WebApplicationFactory<IAppApiMarker> _factory;
    private readonly IAuthService _mockAuthService;

    public AuthControllerIntegrationTests(WebApplicationFactory<IAppApiMarker> factory)
    {
        _mockAuthService = Substitute.For<IAuthService>();
        
        _factory = factory.WithWebHostBuilder(builder =>
        {
            builder.UseEnvironment("Testing");
            builder.ConfigureServices(services =>
            {
                services.RemoveAll<IAuthService>();
                services.AddSingleton(_mockAuthService);
                
                services.AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = TestAuthHandler.AuthenticationScheme;
                    options.DefaultChallengeScheme = TestAuthHandler.AuthenticationScheme;
                })
                .AddScheme<AuthenticationSchemeOptions, TestAuthHandler>(
                    TestAuthHandler.AuthenticationScheme, options => { });
            });
        });
    }

    /// <summary>
    /// 测试微信登录 - 成功场景
    /// </summary>
    [Fact]
    public async Task Login_WithValidCode_ReturnsSuccess()
    {
        // Arrange
        var expectedResponse = new LoginResponse
        {
            Token = "jwt-token-123",
            UserId = 1,
            Nickname = "测试用户",
            XiangQinNo = "123456",
            IsProfileCompleted = false,
            IsMember = false,
            MemberLevel = 0,
            IsRealName = false,
            IsNewUser = true
        };

        _mockAuthService.LoginAsync("valid-code")
            .Returns(Task.FromResult(expectedResponse));

        var client = _factory.CreateClient();
        var request = new LoginRequest { Code = "valid-code" };

        // Act
        var response = await client.PostAsJsonAsync("/api/app/auth/login", request);

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<LoginResponse>>(content, 
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.NotNull(result.Data);
        Assert.Equal(expectedResponse.UserId, result.Data.UserId);
        Assert.Equal(expectedResponse.XiangQinNo, result.Data.XiangQinNo);
    }

    /// <summary>
    /// 测试微信登录 - 空code返回错误
    /// </summary>
    [Fact]
    public async Task Login_WithEmptyCode_ReturnsError()
    {
        // Arrange
        var client = _factory.CreateClient();
        var request = new LoginRequest { Code = "" };

        // Act
        var response = await client.PostAsJsonAsync("/api/app/auth/login", request);

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<LoginResponse>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(30003, result.Code); // MissingParameter
    }

    /// <summary>
    /// 测试绑定手机号 - 未授权返回401
    /// </summary>
    [Fact]
    public async Task BindPhone_WithoutAuth_ReturnsUnauthorized()
    {
        // Arrange
        var client = _factory.CreateClient();
        var request = new BindPhoneRequest { Code = "phone-code" };

        // Act
        var response = await client.PostAsJsonAsync("/api/app/auth/bindPhone", request);

        // Assert
        Assert.Equal(HttpStatusCode.Unauthorized, response.StatusCode);
    }

    /// <summary>
    /// 测试绑定手机号 - 授权后成功
    /// </summary>
    [Fact]
    public async Task BindPhone_WithAuth_ReturnsSuccess()
    {
        // Arrange
        var expectedResponse = new BindPhoneResponse { Phone = "138****8888" };
        
        _mockAuthService.BindPhoneAsync(1, "phone-code")
            .Returns(Task.FromResult(expectedResponse));

        var client = _factory.CreateClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer test-token-1");
        
        var request = new BindPhoneRequest { Code = "phone-code" };

        // Act
        var response = await client.PostAsJsonAsync("/api/app/auth/bindPhone", request);

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<BindPhoneResponse>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.NotNull(result.Data);
        Assert.Equal(expectedResponse.Phone, result.Data.Phone);
    }

    /// <summary>
    /// 测试相亲编号格式 - 6位数字且首位不为0
    /// </summary>
    [Fact]
    public async Task Login_XiangQinNo_ShouldBe6DigitsAndNotStartWithZero()
    {
        // Arrange
        var expectedResponse = new LoginResponse
        {
            Token = "jwt-token-123",
            UserId = 1,
            XiangQinNo = "123456",
            IsNewUser = true
        };

        _mockAuthService.LoginAsync("test-code")
            .Returns(Task.FromResult(expectedResponse));

        var client = _factory.CreateClient();
        var request = new LoginRequest { Code = "test-code" };

        // Act
        var response = await client.PostAsJsonAsync("/api/app/auth/login", request);

        // Assert
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<LoginResponse>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result?.Data?.XiangQinNo);
        var xiangQinNo = result.Data.XiangQinNo;
        
        // 验证6位数字
        Assert.Equal(6, xiangQinNo.Length);
        Assert.True(xiangQinNo.All(char.IsDigit), "相亲编号应全为数字");
        Assert.NotEqual('0', xiangQinNo[0]); // 首位不为0
    }
}