using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using System.Security.Claims;
using XiangYi.Application.DTOs.Requests;
using XiangYi.Application.DTOs.Responses;
using XiangYi.Application.Interfaces;

namespace XiangYi.AdminApi.Controllers;

/// <summary>
/// 后台用户管理控制器
/// </summary>
[ApiController]
[Route("api/admin/users")]
[Authorize]
public class AdminUserController : ControllerBase
{
    private readonly IAdminUserService _adminUserService;
    private readonly ILogger<AdminUserController> _logger;

    public AdminUserController(IAdminUserService adminUserService, ILogger<AdminUserController> logger)
    {
        _adminUserService = adminUserService;
        _logger = logger;
    }

    /// <summary>
    /// 获取用户列表
    /// </summary>
    /// <param name="request">查询请求</param>
    /// <returns>分页用户列表</returns>
    [HttpGet]
    public async Task<ApiResponse<PagedResult<AdminUserListDto>>> GetUserList([FromQuery] AdminUserQueryRequest request)
    {
        var result = await _adminUserService.GetUserListAsync(request);
        return ApiResponse<PagedResult<AdminUserListDto>>.Success(result);
    }

    /// <summary>
    /// 获取用户详情
    /// </summary>
    /// <param name="id">用户ID</param>
    /// <returns>用户详情</returns>
    [HttpGet("{id}")]
    public async Task<ApiResponse<AdminUserDetailDto>> GetUserDetail(long id)
    {
        var result = await _adminUserService.GetUserDetailAsync(id);
        return ApiResponse<AdminUserDetailDto>.Success(result);
    }

    /// <summary>
    /// 更新用户状态
    /// </summary>
    /// <param name="id">用户ID</param>
    /// <param name="request">状态更新请求</param>
    /// <returns>操作结果</returns>
    [HttpPut("{id}/status")]
    public async Task<ApiResponse> UpdateUserStatus(long id, [FromBody] UpdateUserStatusRequest request)
    {
        var adminId = GetCurrentAdminId();
        var result = await _adminUserService.UpdateUserStatusAsync(id, request.Status, adminId);
        return result ? ApiResponse.Success("更新成功") : ApiResponse.Error(40001, "更新失败");
    }

    /// <summary>
    /// 获取用户统计数据
    /// </summary>
    /// <returns>统计数据</returns>
    [HttpGet("statistics")]
    public async Task<ApiResponse<AdminUserStatisticsDto>> GetUserStatistics()
    {
        var result = await _adminUserService.GetUserStatisticsAsync();
        return ApiResponse<AdminUserStatisticsDto>.Success(result);
    }

    /// <summary>
    /// 创建测试用户
    /// </summary>
    /// <param name="request">创建请求</param>
    /// <returns>创建的用户ID列表</returns>
    [HttpPost("test-users")]
    public async Task<ApiResponse<List<long>>> CreateTestUsers([FromBody] CreateTestUsersRequest request)
    {
        if (request.Count <= 0 || request.Count > 50)
        {
            return ApiResponse<List<long>>.Error(40001, "创建数量必须在1-50之间");
        }
        
        var result = await _adminUserService.CreateTestUsersAsync(request.Count, request.Gender);
        return ApiResponse<List<long>>.Success(result, $"成功创建{result.Count}个测试用户");
    }

    /// <summary>
    /// 获取当前管理员ID
    /// </summary>
    private long GetCurrentAdminId()
    {
        var adminIdClaim = User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
        return long.TryParse(adminIdClaim, out var adminId) ? adminId : 0;
    }

    /// <summary>
    /// 删除用户（硬删除）
    /// </summary>
    /// <param name="id">用户ID</param>
    /// <returns>操作结果</returns>
    [HttpDelete("{id}")]
    public async Task<ApiResponse> DeleteUser(long id)
    {
        var adminId = GetCurrentAdminId();
        var result = await _adminUserService.DeleteUserAsync(id, adminId);
        return result ? ApiResponse.Success("删除成功") : ApiResponse.Error(40001, "删除失败");
    }

    /// <summary>
    /// 更新用户联系次数
    /// </summary>
    /// <param name="id">用户ID</param>
    /// <param name="request">联系次数更新请求</param>
    /// <returns>操作结果</returns>
    [HttpPut("{id}/contact-count")]
    public async Task<ApiResponse> UpdateContactCount(long id, [FromBody] UpdateContactCountRequest request)
    {
        var adminId = GetCurrentAdminId();
        var result = await _adminUserService.UpdateContactCountAsync(id, request.ContactCount, adminId);
        return result ? ApiResponse.Success("更新成功") : ApiResponse.Error(40001, "更新失败");
    }
}

/// <summary>
/// 创建测试用户请求
/// </summary>
public class CreateTestUsersRequest
{
    /// <summary>
    /// 创建数量（1-50）
    /// </summary>
    public int Count { get; set; } = 10;
    
    /// <summary>
    /// 性别：1男 2女，null则随机
    /// </summary>
    public int? Gender { get; set; }
}

/// <summary>
/// 更新联系次数请求
/// </summary>
public class UpdateContactCountRequest
{
    /// <summary>
    /// 联系次数
    /// </summary>
    public int ContactCount { get; set; }
}