using AdminAPI.Filters;
using AdminAPI.Libraries;
using AdminShared.Models;
using AdminShared.Models.User;
using Common;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Cryptography.KeyDerivation;
using Microsoft.AspNetCore.Mvc;
using Repository.Database;
using System.Text;

namespace AdminAPI.Controllers
{


 /// <summary>
 /// 用户数据操作控制器
 /// </summary>
 [SignVerifyFilter]
 [Route("[controller]")]
 [Authorize]
 [ApiController]
 public class UserController : ControllerBase
 {

 private readonly DatabaseContext db;
 private readonly SnowflakeHelper snowflakeHelper;

 private readonly long userId;


 public UserController(DatabaseContext db, SnowflakeHelper snowflakeHelper, IHttpContextAccessor httpContextAccessor)
 {
 this.db = db;
 this.snowflakeHelper = snowflakeHelper;

 var userIdStr = httpContextAccessor.HttpContext?.GetClaimByAuthorization("userId");
 if (userIdStr != null)
 {
 userId = long.Parse(userIdStr);
 }
 }



 /// <summary>
 /// 获取用户列表
 /// </summary>
 /// <param name="pageNum"></param>
 /// <param name="pageSize"></param>
 /// <param name="searchKey"></param>
 /// <returns></returns>
 [HttpGet("GetUserList")]
 public DtoPageList<DtoUser> GetUserList(int pageNum, int pageSize, string? searchKey)
 {
 var data = new DtoPageList<DtoUser>();

 int skip = (pageNum - 1) * pageSize;

 var query = db.TUser.Where(t => t.IsDelete == false);

 if (!string.IsNullOrEmpty(searchKey))
 {
 query = query.Where(t => t.Name.Contains(searchKey) || t.NickName.Contains(searchKey) || t.Phone.Contains(searchKey));
 }


 data.Total = query.Count();

 data.List = query.OrderByDescending(t => t.CreateTime).Select(t => new DtoUser
 {
 Id = t.Id,
 Name = t.Name,
 NickName = t.NickName,
 Phone = t.Phone,
 Email = t.Email,
 Roles = string.Join(",", db.TUserRole.Where(r => r.IsDelete == false && r.UserId == t.Id).Select(r => r.Role.Name).ToList()),
 CreateTime = t.CreateTime
 }).Skip(skip).Take(pageSize).ToList();

 return data;
 }




 /// <summary>
 /// 通过 UserId 获取用户信息 
 /// </summary>
 /// <param name="userId">用户ID</param>
 /// <returns></returns>
 [HttpGet("GetUser")]
 public DtoUser? GetUser(long? userId)
 {

 if (userId == null)
 {
 userId = this.userId;
 }

 var user = db.TUser.Where(t => t.Id == userId && t.IsDelete == false).Select(t => new DtoUser
 {
 Id = t.Id,
 Name = t.Name,
 NickName = t.NickName,
 Phone = t.Phone,
 Email = t.Email,
 Roles = string.Join(",", db.TUserRole.Where(r => r.IsDelete == false && r.UserId == t.Id).Select(r => r.Role.Name).ToList()),
 CreateTime = t.CreateTime
 }).FirstOrDefault();

 return user;
 }




 /// <summary>
 /// 创建用户
 /// </summary>
 /// <param name="createUser"></param>
 /// <returns></returns>
 [HttpPost("CreateUser")]
 public long CreateUser(DtoEditUser createUser)
 {
 TUser user = new()
 {
 Id = snowflakeHelper.GetId(),
 Name = createUser.Name,
 NickName = createUser.NickName,
 Phone = createUser.Phone
 };
 user.PassWord = Convert.ToBase64String(KeyDerivation.Pbkdf2(createUser.PassWord, Encoding.UTF8.GetBytes(user.Id.ToString()), KeyDerivationPrf.HMACSHA256, 1000, 32));
 user.CreateTime = DateTime.UtcNow;
 user.CreateUserId = userId;

 user.Email = createUser.Email;

 db.TUser.Add(user);

 db.SaveChanges();

 return user.Id;
 }




 /// <summary>
 /// 更新用户信息
 /// </summary>
 /// <param name="userId"></param>
 /// <param name="updateUser"></param>
 /// <returns></returns>
 [HttpPost("UpdateUser")]
 public bool UpdateUser(long userId, DtoEditUser updateUser)
 {
 var user = db.TUser.Where(t => t.IsDelete == false && t.Id == userId).FirstOrDefault();

 if (user != null)
 {
 user.UpdateTime = DateTime.UtcNow;
 user.UpdateUserId = this.userId;

 user.Name = updateUser.Name;
 user.NickName = updateUser.NickName;
 user.Phone = updateUser.Phone;
 user.Email = updateUser.Email;

 if (updateUser.PassWord != "default")
 {
 user.PassWord = Convert.ToBase64String(KeyDerivation.Pbkdf2(updateUser.PassWord, Encoding.UTF8.GetBytes(user.Id.ToString()), KeyDerivationPrf.HMACSHA256, 1000, 32));
 }

 db.SaveChanges();

 return true;
 }
 else
 {
 return false;
 }
 }



 /// <summary>
 /// 删除用户
 /// </summary>
 /// <param name="id"></param>
 /// <returns></returns>
 [HttpDelete("DeleteUser")]
 public bool DeleteUser(long id)
 {
 var user = db.TUser.Where(t => t.IsDelete == false && t.Id == id).FirstOrDefault();

 if (user != null)
 {
 user.IsDelete = true;
 user.DeleteTime = DateTime.UtcNow;
 user.DeleteUserId = userId;

 db.SaveChanges();

 return true;
 }
 else
 {
 return false;
 }

 }



 }
}