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>
/// 资料控制器集成测试
/// </summary>
public class ProfileControllerIntegrationTests : IClassFixture<WebApplicationFactory<IAppApiMarker>>
{
    private readonly WebApplicationFactory<IAppApiMarker> _factory;
    private readonly IProfileService _mockProfileService;

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

    /// <summary>
    /// 测试提交资料 - 未授权返回401
    /// </summary>
    [Fact]
    public async Task CreateOrUpdate_WithoutAuth_ReturnsUnauthorized()
    {
        // Arrange
        var client = _factory.CreateClient();
        var request = new ProfileRequest
        {
            Relationship = 1,
            Surname = "李",
            ChildGender = 1
        };

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

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

    /// <summary>
    /// 测试提交资料 - 授权后成功
    /// </summary>
    [Fact]
    public async Task CreateOrUpdate_WithAuth_ReturnsSuccess()
    {
        // Arrange
        _mockProfileService.CreateOrUpdateAsync(1, Arg.Any<ProfileRequest>())
            .Returns(Task.FromResult(100L));

        var client = _factory.CreateClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer test-token-1");
        
        var request = new ProfileRequest
        {
            Relationship = 1,
            Surname = "李",
            ChildGender = 1,
            BirthYear = 1995,
            Education = 4,
            WorkProvince = "广东省",
            WorkCity = "深圳市"
        };

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

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<long>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.Equal(100L, result.Data);
    }

    /// <summary>
    /// 测试获取我的资料 - 成功
    /// </summary>
    [Fact]
    public async Task GetMyProfile_WithAuth_ReturnsProfile()
    {
        // Arrange
        var expectedProfile = new ProfileResponse
        {
            UserId = 1,
            Nickname = "李家长（父亲）",
            Relationship = 1,
            Surname = "李",
            ChildGender = 1,
            BirthYear = 1995,
            Education = 4
        };

        _mockProfileService.GetByUserIdAsync(1)
            .Returns(Task.FromResult<ProfileResponse?>(expectedProfile));

        var client = _factory.CreateClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer test-token-1");

        // Act
        var response = await client.GetAsync("/api/app/profile");

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

    /// <summary>
    /// 测试获取我的资料 - 资料不存在
    /// </summary>
    [Fact]
    public async Task GetMyProfile_ProfileNotExists_ReturnsError()
    {
        // Arrange
        _mockProfileService.GetByUserIdAsync(1)
            .Returns(Task.FromResult<ProfileResponse?>(null));

        var client = _factory.CreateClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer test-token-1");

        // Act
        var response = await client.GetAsync("/api/app/profile");

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<ProfileResponse>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.NotEqual(0, result.Code); // 应返回错误码
    }

    /// <summary>
    /// 测试照片数量限制 - 超过5张返回错误
    /// </summary>
    [Fact]
    public async Task UploadPhotos_ExceedsLimit_ReturnsError()
    {
        // Arrange
        _mockProfileService.CanUploadPhotosAsync(1, 3)
            .Returns(Task.FromResult(false)); // 模拟已有3张，再上传3张超过限制

        var client = _factory.CreateClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer test-token-1");

        // 创建多文件上传请求
        using var content = new MultipartFormDataContent();
        for (int i = 0; i < 3; i++)
        {
            var fileContent = new ByteArrayContent(new byte[] { 0x89, 0x50, 0x4E, 0x47 }); // PNG header
            fileContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("image/png");
            content.Add(fileContent, "files", $"photo{i}.png");
        }

        // Act
        var response = await client.PostAsync("/api/app/profile/photos", content);

        // Assert
        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var responseContent = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<UploadPhotoResponse>>(responseContent,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.NotEqual(0, result.Code); // 应返回错误码
    }
}