using System.Net;
using System.Net.Http.Headers;
using System.Net.Http.Json;
using CampusErrand.Data;
using CampusErrand.Models;
using CampusErrand.Models.Dtos;
using FsCheck;
using FsCheck.Xunit;
using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;

namespace CampusErrand.Tests;

/// <summary>
/// Property 19: 订单详情按状态显示字段
/// 对任意订单，当状态为"待接单"时接单时间、跑腿信息、完成信息应为空；
/// 当状态为"进行中"时应显示接单时间和跑腿信息；
/// 当状态为"已完成"时应显示所有信息。
/// **Feature: login-and-homepage, Property 19: 订单详情按状态显示字段**
///
/// </summary>
public class OrderDetailByStatusPropertyTests : IDisposable
{
    private const string JwtSecret = "YourSuperSecretKeyForJwtTokenGeneration_AtLeast32Chars!";
    private const string JwtIssuer = "CampusErrand";
    private const string JwtAudience = "CampusErrandApp";

    private readonly List<WebApplicationFactory<Program>> _factories = [];

    private WebApplicationFactory<Program> CreateFactory(string dbName)
    {
        var factory = new WebApplicationFactory<Program>()
            .WithWebHostBuilder(builder =>
            {
                builder.ConfigureServices(services =>
                {
                    var efDescriptors = services
                        .Where(d =>
                            d.ServiceType.FullName?.Contains("EntityFrameworkCore") == true
                            || d.ServiceType == typeof(DbContextOptions<AppDbContext>)
                            || d.ServiceType == typeof(DbContextOptions)
                            || d.ImplementationType?.FullName?.Contains("EntityFrameworkCore") == true)
                        .ToList();
                    foreach (var d in efDescriptors) services.Remove(d);

                    services.AddDbContext<AppDbContext>(options =>
                        options.UseInMemoryDatabase(dbName));
                });
            });
        _factories.Add(factory);
        return factory;
    }

    private static string GenerateToken(int userId, string role = "User")
    {
        var key = new Microsoft.IdentityModel.Tokens.SymmetricSecurityKey(
            System.Text.Encoding.UTF8.GetBytes(JwtSecret));
        var credentials = new Microsoft.IdentityModel.Tokens.SigningCredentials(
            key, Microsoft.IdentityModel.Tokens.SecurityAlgorithms.HmacSha256);
        var claims = new[]
        {
            new System.Security.Claims.Claim(System.Security.Claims.ClaimTypes.NameIdentifier, userId.ToString()),
            new System.Security.Claims.Claim(System.Security.Claims.ClaimTypes.Role, role)
        };
        var token = new System.IdentityModel.Tokens.Jwt.JwtSecurityToken(
            issuer: JwtIssuer, audience: JwtAudience, claims: claims,
            expires: DateTime.UtcNow.AddHours(1), signingCredentials: credentials);
        return new System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler().WriteToken(token);
    }

    /// <summary>
    /// 属性：待接单状态的订单，接单时间、跑腿信息、完成信息应为空
    /// </summary>
    [Property(MaxTest = 20)]
    public bool 待接单订单详情中跑腿和完成信息为空(PositiveInt seed)
    {
        var dbName = $"detail_pending_{Guid.NewGuid()}";
        using var factory = CreateFactory(dbName);

        var ownerId = 100;
        int orderId;

        using (var scope = factory.Services.CreateScope())
        {
            var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
            db.Users.Add(new User
            {
                Id = ownerId, OpenId = $"owner_{Guid.NewGuid()}", Phone = "13900000001",
                Nickname = "单主", CreatedAt = DateTime.UtcNow
            });

            var order = new Order
            {
                OrderNo = $"ORD{Guid.NewGuid():N}"[..20],
                OwnerId = ownerId,
                OrderType = OrderType.Pickup, Status = OrderStatus.Pending,
                ItemName = "测试物品", DeliveryLocation = "测试地点",
                Phone = "13800138000", Commission = 5.0m, TotalAmount = 5.0m,
                CreatedAt = DateTime.UtcNow
            };
            db.Orders.Add(order);
            db.SaveChanges();
            orderId = order.Id;
        }

        var client = factory.CreateClient();
        client.DefaultRequestHeaders.Authorization =
            new AuthenticationHeaderValue("Bearer", GenerateToken(ownerId));

        var response = client.GetFromJsonAsync<OrderResponse>($"/api/orders/{orderId}").Result!;

        // 待接单：接单时间、跑腿昵称、跑腿UID、完成时间、完成凭证应为空
        return response.AcceptedAt == null
            && response.RunnerNickname == null
            && response.RunnerUid == null
            && response.CompletedAt == null
            && response.CompletionProof == null;
    }

    /// <summary>
    /// 属性：进行中状态的订单，应显示接单时间和跑腿信息
    /// </summary>
    [Property(MaxTest = 20)]
    public bool 进行中订单详情显示接单时间和跑腿信息(PositiveInt seed)
    {
        var dbName = $"detail_inprogress_{Guid.NewGuid()}";
        using var factory = CreateFactory(dbName);

        var ownerId = 100;
        var runnerId = 200;
        int orderId;

        using (var scope = factory.Services.CreateScope())
        {
            var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
            db.Users.Add(new User
            {
                Id = ownerId, OpenId = $"owner_{Guid.NewGuid()}", Phone = "13900000001",
                Nickname = "单主", CreatedAt = DateTime.UtcNow
            });
            db.Users.Add(new User
            {
                Id = runnerId, OpenId = $"runner_{Guid.NewGuid()}", Phone = "13900000002",
                Nickname = "跑腿小哥", Role = UserRole.Runner, CreatedAt = DateTime.UtcNow
            });

            var order = new Order
            {
                OrderNo = $"ORD{Guid.NewGuid():N}"[..20],
                OwnerId = ownerId, RunnerId = runnerId,
                OrderType = OrderType.Delivery, Status = OrderStatus.InProgress,
                ItemName = "测试物品", DeliveryLocation = "测试地点",
                Phone = "13800138000", Commission = 5.0m, TotalAmount = 5.0m,
                CreatedAt = DateTime.UtcNow, AcceptedAt = DateTime.UtcNow
            };
            db.Orders.Add(order);
            db.SaveChanges();
            orderId = order.Id;
        }

        var client = factory.CreateClient();
        client.DefaultRequestHeaders.Authorization =
            new AuthenticationHeaderValue("Bearer", GenerateToken(ownerId));

        var response = client.GetFromJsonAsync<OrderResponse>($"/api/orders/{orderId}").Result!;

        // 进行中：应显示接单时间和跑腿信息，完成信息为空
        return response.AcceptedAt != null
            && response.RunnerNickname == "跑腿小哥"
            && response.RunnerUid == runnerId
            && response.CompletedAt == null
            && response.CompletionProof == null;
    }

    /// <summary>
    /// 属性：已完成状态的订单，应显示所有信息
    /// </summary>
    [Property(MaxTest = 20)]
    public bool 已完成订单详情显示所有信息(PositiveInt seed)
    {
        var dbName = $"detail_completed_{Guid.NewGuid()}";
        using var factory = CreateFactory(dbName);

        var ownerId = 100;
        var runnerId = 200;
        int orderId;

        using (var scope = factory.Services.CreateScope())
        {
            var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
            db.Users.Add(new User
            {
                Id = ownerId, OpenId = $"owner_{Guid.NewGuid()}", Phone = "13900000001",
                Nickname = "单主", CreatedAt = DateTime.UtcNow
            });
            db.Users.Add(new User
            {
                Id = runnerId, OpenId = $"runner_{Guid.NewGuid()}", Phone = "13900000002",
                Nickname = "跑腿小哥", Role = UserRole.Runner, CreatedAt = DateTime.UtcNow
            });

            var order = new Order
            {
                OrderNo = $"ORD{Guid.NewGuid():N}"[..20],
                OwnerId = ownerId, RunnerId = runnerId,
                OrderType = OrderType.Purchase, Status = OrderStatus.Completed,
                ItemName = "测试物品", DeliveryLocation = "测试地点",
                Phone = "13800138000", Commission = 5.0m, GoodsAmount = 20.0m, TotalAmount = 25.0m,
                CompletionProof = "https://img.test/proof.jpg",
                CreatedAt = DateTime.UtcNow, AcceptedAt = DateTime.UtcNow,
                CompletedAt = DateTime.UtcNow
            };
            db.Orders.Add(order);
            db.SaveChanges();
            orderId = order.Id;
        }

        var client = factory.CreateClient();
        client.DefaultRequestHeaders.Authorization =
            new AuthenticationHeaderValue("Bearer", GenerateToken(ownerId));

        var response = client.GetFromJsonAsync<OrderResponse>($"/api/orders/{orderId}").Result!;

        // 已完成：应显示接单时间、跑腿信息、完成时间和完成凭证
        return response.AcceptedAt != null
            && response.RunnerNickname == "跑腿小哥"
            && response.RunnerUid == runnerId
            && response.CompletedAt != null
            && response.CompletionProof == "https://img.test/proof.jpg";
    }

    public void Dispose()
    {
        foreach (var f in _factories) f.Dispose();
        _factories.Clear();
    }
}