/**
#                                                    __----~~~~~~~~~~~------___
#                                   .  .   ~~//====......          __--~ ~~
#                   -.            \_|//     |||\\  ~~~~~~::::... /~
#                ___-==_       _-~o~  \/    |||  \\            _/~~-
#        __---~~~.==~||\=_    -_--~/_-~|-   |\\   \\        _/~
#    _-~~     .=~    |  \\-_    '-~7  /-   /  ||    \      /
#  .~       .~       |   \\ -_    /  /-   /   ||      \   /
# /  ____  /         |     \\ ~-_/  /|- _/   .||       \ /
# |~~    ~~|--~~~~--_ \     ~==-/   | \~--===~~        .\
#          '         ~-|      /|    |-~\~~       __--~~
#                      |-~~-_/ |    |   ~\_   _-~            /\
#                           /  \     \__   \/~                \__
#                       _--~ _/ | .-~~____--~-/                  ~~==.
#                      ((->/~   '.|||' -_|    ~~-/ ,              . _||
#                                 -_     ~\      ~~---l__i__i__i--~~_/
#                                 _-~-__   ~)  \--______________--~~
#                               //.-~~~-~_--~- |-------~~~~~~~~
#                                      //.-~~~--\
#                  神兽保佑
#                  永无BUG！
*/
package com.lunhan.water.host.controller.user;

import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.lunhan.water.common.ConstantFactory;
import com.lunhan.water.common.ExecutedResult;
import com.lunhan.water.common.PagerResult;
import com.lunhan.water.common.config.SysConfig;
import com.lunhan.water.common.enums.EResultCode;
import com.lunhan.water.common.exceptions.BusinessException;
import com.lunhan.water.common.jwt.JWTUtil;
import com.lunhan.water.common.jwt.LoginUserDTO;
import com.lunhan.water.common.util.HttpUtil;
import com.lunhan.water.common.util.LocalDateTimeUtil;
import com.lunhan.water.common.util.ParameterUtil;
import com.lunhan.water.common.util.SerializeUtil;
import com.lunhan.water.common.validator.ParameterValidateResult;
import com.lunhan.water.common.validator.ParameterValidator;
import com.lunhan.water.entity.enums.EState;
import com.lunhan.water.entity.enums.EUserType;
import com.lunhan.water.entity.request.ReqChangePassword;
import com.lunhan.water.entity.request.ReqListId;
import com.lunhan.water.entity.request.ReqNeedCode;
import com.lunhan.water.entity.request.ReqUserLogin;
import com.lunhan.water.entity.weixin.WeiXinUserDto;
import com.lunhan.water.host.BasicController;
import com.lunhan.water.host.api.NonLogin;
import com.lunhan.water.repository.po.UserLoginPO;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import java.util.List;
import java.util.Objects;

import com.lunhan.water.service.UserLoginService;
import com.lunhan.water.entity.request.userlogin.ReqCreateUserLogin;
import com.lunhan.water.entity.request.userlogin.ReqModifyUserLogin;
import com.lunhan.water.entity.search.SearchUserLogin;
import com.lunhan.water.repository.vo.UserLoginVO;

/**
 * 9000.UserLogin
 * @author lin.liu
 * @order 9000
 */
@RestController
@RequestMapping(value = "user")
public class UserLoginController extends BasicController {
    @Autowired
    private UserLoginService userLoginService;
    /**
     * 微信小程序授权
     * @param request 请求参数
     */
    @NonLogin
    @PostMapping(value = "wxAuthorize")
    public ExecutedResult<WeiXinUserDto> wxAuthorization(@RequestBody ReqNeedCode request) {
        return success(this.wxMiniAppAuth(request.getCode()));
    }
    /**
     * 微信登录
     * @param request 请求参数
     */
    @NonLogin
    @PostMapping(value = "wxLogin")
    public ExecutedResult<LoginUserDTO> wxLogin(@RequestBody ReqNeedCode request) {
        //微信授权
        WeiXinUserDto userInfo = this.wxMiniAppAuth(request.getCode());
        Long now = LocalDateTimeUtil.nowTimeStamp();
        String openId = userInfo.getOpenId();

        UserLoginPO user = userLoginService.get4Openid(openId);
        if (Objects.isNull(user)) {
            // 微信未绑定账号，新增用户
            ReqCreateUserLogin reqCreateUser = new ReqCreateUserLogin();
            reqCreateUser.setUserName(openId);
            reqCreateUser.setPassword("");
            reqCreateUser.setWxOpenId(openId);
            reqCreateUser.setNickName(userInfo.getNickName());
            reqCreateUser.setHeadImg(userInfo.getHeadImgUrl());
            reqCreateUser.setPhone("");
            reqCreateUser.setComment("");
            ExecutedResult<Long> createAdmin = userLoginService.create(reqCreateUser);
            if (createAdmin.isFailed()) {
                return ExecutedResult.failed(createAdmin.getMsg());
            }

            user = userLoginService.get4Openid(openId);
        }
        if (!Objects.equals(user.getStatus(), EState.NORMAL.getValue())) {
            return ExecutedResult.failed("账号异常, 请联系管理员！");
        }
        LoginUserDTO loginUser = new LoginUserDTO();
        loginUser.setUserType(EUserType.ADMIN_USER.getValue());
        loginUser.setUserId(openId);
        loginUser.setNickName(user.getNickName());
        loginUser.setHeadImg(user.getHeadImg());
        loginUser.setPhone("");
        loginUser.setToken(JWTUtil.getToken(loginUser));
        return ExecutedResult.success(loginUser);
    }
    /**
     * 微信小程序授权
     */
    private WeiXinUserDto wxMiniAppAuth(String code) {
        //微信接口服务,通过调用微信接口服务中jscode2session接口获取到openid和session_key
        String url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + SysConfig.wx.getAppId() + "&secret=" + SysConfig.wx.getSecret() + "&js_code=" + code + "&grant_type=authorization_code";
        String response = HttpUtil.doGet(url);
        JsonObject jsonObject = new JsonParser().parse(response).getAsJsonObject();
        if (!jsonObject.has("errcode")) {
            String sessionKey = jsonObject.get("session_key").toString();
            String openId = jsonObject.get("openid").toString();
        }
        if (jsonObject.has("errcode")) {
            String errCode = jsonObject.get("errcode").getAsString();
            switch (errCode) {
                case "1":
                    throw new BusinessException(EResultCode.FAILED, "微信授权失败，请稍后再试.");
                case "40029":
                    throw new BusinessException(EResultCode.FAILED, "微信授权code无效");
                case "40163":
                    throw new BusinessException(EResultCode.FAILED, "微信授权code已被使用");
                case "45011":
                    throw new BusinessException(EResultCode.FAILED, "访问次数过于频繁，请稍后再试");

                default:
                    throw new BusinessException(EResultCode.FAILED, "微信返回错误：" + errCode);
            }
        }
        return SerializeUtil.toObject(response, WeiXinUserDto.class);
    }
    /**
     * 修改密码
     * @param request 请求参数
     * @author lin.liu
     */
    @PostMapping("/changePassword")
    public ExecutedResult<String> changePassword(@RequestBody ReqChangePassword request) {
        //#region 参数验证
        ParameterValidator validator = new ParameterValidator()
                .addNotNullOrEmpty(ParameterUtil.named("旧密码"), request.getOldPassword())
                .addNotNullOrEmpty(ParameterUtil.named("新密码"), request.getNewPassword())
                .addLengthMax(ParameterUtil.named("新密码"), request.getNewPassword(), ConstantFactory.LENGTH_MAX50);
        ParameterValidateResult result = validator.validate();
        if (result.getIsFiled()) {
            return ExecutedResult.failed(result.getErrorMsg());
        }
        //#endregion
        LoginUserDTO user = super.getTokenUser();
        return userLoginService.changePassword(user, request);
    }

    /**
     * 帐号密码登录
     * @param request 请求参数
     * @author lin.liu
     */
    @PostMapping("login")
    @NonLogin
    public ExecutedResult<LoginUserDTO> login(@RequestBody ReqUserLogin request) {
        //#region 参数验证
        ParameterValidator validator = new ParameterValidator()
                .addNotNullOrEmpty(ParameterUtil.named("用户名"), request.getUserName())
                .addNotNullOrEmpty(ParameterUtil.named("密码"), request.getPassword());
        ParameterValidateResult result = validator.validate();
        if (result.getIsFiled()) {
            return ExecutedResult.failed(result.getErrorMsg());
        }
        //#endregion
        return userLoginService.login(request);
    }
}