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.AdminApi;
using XiangYi.Application.DTOs.Requests;
using XiangYi.Application.DTOs.Responses;
using XiangYi.Application.Interfaces;

namespace XiangYi.Api.Tests.AdminApi;

/// <summary>
/// 后台会员管理控制器集成测试
/// </summary>
public class AdminMemberControllerIntegrationTests : IClassFixture<WebApplicationFactory<IAdminApiMarker>>
{
    private readonly WebApplicationFactory<IAdminApiMarker> _factory;
    private readonly IAdminMemberService _mockAdminMemberService;

    public AdminMemberControllerIntegrationTests(WebApplicationFactory<IAdminApiMarker> factory)
    {
        _mockAdminMemberService = Substitute.For<IAdminMemberService>();
        
        _factory = factory.WithWebHostBuilder(builder =>
        {
            builder.UseEnvironment("Testing");
            builder.ConfigureServices(services =>
            {
                services.RemoveAll<IAdminMemberService>();
                services.AddSingleton(_mockAdminMemberService);
                
                services.AddAuthentication(options =>
                {
                    options.DefaultAuthenticateScheme = AdminTestAuthHandler.AuthenticationScheme;
                    options.DefaultChallengeScheme = AdminTestAuthHandler.AuthenticationScheme;
                })
                .AddScheme<AuthenticationSchemeOptions, AdminTestAuthHandler>(
                        AdminTestAuthHandler.AuthenticationScheme, options => { });
            });
        });
    }

    /// <summary>
    /// 测试获取会员列表 - 未授权返回401
    /// </summary>
    [Fact]
    public async Task GetMemberList_WithoutAuth_ReturnsUnauthorized()
    {
        var client = _factory.CreateClient();
        var response = await client.GetAsync("/api/admin/members");
        Assert.Equal(HttpStatusCode.Unauthorized, response.StatusCode);
    }


    /// <summary>
    /// 测试获取会员列表 - 授权后成功
    /// </summary>
    [Fact]
    public async Task GetMemberList_WithAuth_ReturnsSuccess()
    {
        var expectedResult = new PagedResult<AdminMemberListDto>
        {
            Items = new List<AdminMemberListDto>
            {
                new AdminMemberListDto
                {
                    MemberId = 1,
                    UserId = 100,
                    XiangQinNo = "123456",
                    Nickname = "测试用户",
                    MemberLevel = 1,
                    MemberLevelText = "不限时会员",
                    OrderId = 1,
                    OrderNo = "ORD202312310001",
                    StartTime = DateTime.Now.AddDays(-30),
                    ExpireTime = null,
                    Status = 1,
                    StatusText = "生效中",
                    FamilyBindCount = 0
                }
            },
            Total = 1,
            PageIndex = 1,
            PageSize = 20
        };

        _mockAdminMemberService.GetMemberListAsync(Arg.Any<AdminMemberQueryRequest>())
            .Returns(Task.FromResult(expectedResult));

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

        var response = await client.GetAsync("/api/admin/members");

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<PagedResult<AdminMemberListDto>>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.NotNull(result.Data);
        Assert.Single(result.Data.Items);
        Assert.Equal("不限时会员", result.Data.Items[0].MemberLevelText);
    }

    /// <summary>
    /// 测试获取会员详情 - 成功
    /// </summary>
    [Fact]
    public async Task GetMemberDetail_WithAuth_ReturnsSuccess()
    {
        var expectedResult = new AdminMemberDetailDto
        {
            MemberId = 1,
            UserId = 100,
            XiangQinNo = "123456",
            Nickname = "测试用户",
            MemberLevel = 3,
            MemberLevelText = "家庭版会员",
            OrderId = 1,
            OrderNo = "ORD202312310001",
            OrderAmount = 2999,
            PayTime = DateTime.Now.AddDays(-30),
            StartTime = DateTime.Now.AddDays(-30),
            ExpireTime = null,
            Status = 1,
            StatusText = "生效中",
            FamilyMembers = new List<AdminFamilyMemberDto>
            {
                new AdminFamilyMemberDto
                {
                    BindId = 1,
                    UserId = 101,
                    XiangQinNo = "123457",
                    Nickname = "家庭成员1",
                    BindTime = DateTime.Now.AddDays(-20)
                }
            }
        };

        _mockAdminMemberService.GetMemberDetailAsync(1)
            .Returns(Task.FromResult(expectedResult));

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

        var response = await client.GetAsync("/api/admin/members/1");

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<AdminMemberDetailDto>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.NotNull(result.Data);
        Assert.Equal(expectedResult.MemberId, result.Data.MemberId);
        Assert.Equal("家庭版会员", result.Data.MemberLevelText);
        Assert.NotNull(result.Data.FamilyMembers);
        Assert.Single(result.Data.FamilyMembers);
    }

    /// <summary>
    /// 测试会员列表按等级筛选 - 成功
    /// </summary>
    [Fact]
    public async Task GetMemberList_WithLevelFilter_ReturnsFilteredResults()
    {
        var expectedResult = new PagedResult<AdminMemberListDto>
        {
            Items = new List<AdminMemberListDto>
            {
                new AdminMemberListDto
                {
                    MemberId = 1,
                    MemberLevel = 2,
                    MemberLevelText = "诚意会员"
                }
            },
            Total = 1,
            PageIndex = 1,
            PageSize = 20
        };

        _mockAdminMemberService.GetMemberListAsync(Arg.Is<AdminMemberQueryRequest>(r => r.MemberLevel == 2))
            .Returns(Task.FromResult(expectedResult));

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

        var response = await client.GetAsync("/api/admin/members?memberLevel=2");

        Assert.Equal(HttpStatusCode.OK, response.StatusCode);
        
        var content = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ApiResponse<PagedResult<AdminMemberListDto>>>(content,
            new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
        
        Assert.NotNull(result);
        Assert.Equal(0, result.Code);
        Assert.NotNull(result.Data);
        Assert.All(result.Data.Items, item => Assert.Equal(2, item.MemberLevel));
    }

    /// <summary>
    /// 测试会员列表按关键词搜索 - 成功
    /// </summary>
    [Fact]
    public async Task GetMemberList_WithKeyword_ReturnsFilteredResults()
    {
        var expectedResult = new PagedResult<AdminMemberListDto>
        {
            Items = new List<AdminMemberListDto>
            {
                new AdminMemberListDto
                {
                    MemberId = 1,
                    XiangQinNo = "123456",
                    Nickname = "李家长"
                }
            },
            Total = 1,
            PageIndex = 1,
            PageSize = 20
        };

        _mockAdminMemberService.GetMemberListAsync(Arg.Is<AdminMemberQueryRequest>(r => r.Keyword == "李"))
            .Returns(Task.FromResult(expectedResult));

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

        var response = await client.GetAsync("/api/admin/members?keyword=李");

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