using Asp.Versioning;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using YuanXuan.IM.Common.Dtos.LoginMobile;
using YuanXuan.IM.Common.Helpers;
using YuanXuan.IM.Infrastructure.Redis;

namespace YuanXuan.IM.Api.Controllers
{
    /// <summary>
    /// 登录授权控制器
    /// </summary>
    [Route($@"{RoutePrefix}/[controller]/[action]")]
    [ApiVersion(1.0)]
    public class LoginAuthorController : BaseApiController
    {
        /// <summary>
        /// 登录
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [AllowAnonymous]
        [HttpPost]
        public async Task<IActionResult> Login([FromBody] LoginRequest request)
        {
            // 这里应该添加实际的登录验证逻辑
            // 暂时模拟登录成功
            var userId = "123456";
            var userName = "testuser";
            
            // 生成JWT token
            var token = JwtHelper.GenerateToken(userId, userName);
            var refreshToken = JwtHelper.GenerateRefreshToken();
            
            // 存储token到Redis，用于后续的验证和登出
            await RedisHelper.SetAsync($"user:token:{userId}", token, TimeSpan.FromHours(24));
            await RedisHelper.SetAsync($"user:refreshToken:{userId}", refreshToken, TimeSpan.FromDays(7));
            
            return Success(new { Token = token, RefreshToken = refreshToken, UserId = userId, UserName = userName });
        }
        
        /// <summary>
        /// 刷新Token
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [AllowAnonymous]
        [HttpPost]
        public async Task<IActionResult> RefreshToken([FromBody] RefreshTokenRequest request)
        {
            // 验证refreshToken
            var principal = JwtHelper.GetPrincipalFromExpiredToken(request.Token);
            var userId = principal?.Claims.FirstOrDefault(c => c.Type == "sub")?.Value;
            
            if (userId == null)
            {
                return Fail("无效的token");
            }
            
            var storedRefreshToken = await RedisHelper.GetStringAsync($"user:refreshToken:{userId}");
            if (storedRefreshToken != request.RefreshToken)
            {
                return Fail("无效的refreshToken");
            }
            
            var userName = principal?.Claims.FirstOrDefault(c => c.Type == "name")?.Value;
            var newToken = JwtHelper.GenerateToken(userId, userName);
            var newRefreshToken = JwtHelper.GenerateRefreshToken();
            
            await RedisHelper.SetAsync($"user:token:{userId}", newToken, TimeSpan.FromHours(24));
            await RedisHelper.SetAsync($"user:refreshToken:{userId}", newRefreshToken, TimeSpan.FromDays(7));
            
            return Success(new { Token = newToken, RefreshToken = newRefreshToken });
        }
        
        /// <summary>
        /// 登出
        /// </summary>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        public async Task<IActionResult> Logout()
        {
            var userId = User.FindFirst("sub")?.Value;
            if (userId == null)
            {
                return Fail("用户未登录");
            }
            
            // 从Redis中删除token
            await RedisHelper.DeleteAsync($"user:token:{userId}");
            await RedisHelper.DeleteAsync($"user:refreshToken:{userId}");
            
            return Success("登出成功");
        }
        
        /// <summary>
        /// 全局登出（所有设备）
        /// </summary>
        /// <returns></returns>
        [Authorize]
        [HttpPost]
        public async Task<IActionResult> GlobalLogout()
        {
            var userId = User.FindFirst("sub")?.Value;
            if (userId == null)
            {
                return Fail("用户未登录");
            }
            
            // 删除所有相关的token
            await RedisHelper.DeleteAsync($"user:token:{userId}");
            await RedisHelper.DeleteAsync($"user:refreshToken:{userId}");
            // 这里可以添加更多的清理逻辑，比如删除所有设备的登录记录
            
            return Success("全局登出成功");
        }
    }
}