package com.xcong.excoin.common.system.controller;

import cn.hutool.core.util.IdUtil;
import cn.hutool.crypto.asymmetric.KeyType;
import cn.hutool.crypto.asymmetric.RSA;
import com.alibaba.fastjson.JSONObject;
import com.xcong.excoin.common.contants.AppContants;
import com.xcong.excoin.common.response.Result;
import com.xcong.excoin.common.system.bean.LoginUserBean;
import com.xcong.excoin.common.system.dto.LoginDto;
import com.xcong.excoin.configurations.properties.ApplicationProperties;
import com.xcong.excoin.configurations.properties.SecurityProperties;
import com.xcong.excoin.utils.RedisUtils;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.core.Authentication;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;

/**
 * @Author wzy
 * @Date 2020/5/11
 * @email wangdoubleone@gmail.com
 * @Version V1.0
 **/
@Slf4j
@Api(value = "登陆类", tags = "登陆类")
@RestController
@RequestMapping(value = "/")
public class LoginController {

    @Resource
    private ApplicationProperties applicationProperties;

    @Resource
    private SecurityProperties securityProperties;

    @Resource
    private AuthenticationManagerBuilder authenticationManagerBuilder;

    @Resource
    private RedisUtils redisUtils;

    @PostMapping("/login")
    public Result login(@RequestBody @Validated LoginDto loginDto) {
        UsernamePasswordAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(loginDto.getUsername(), loginDto.getPassword());
        Authentication authentication = authenticationManagerBuilder.getObject().authenticate(authToken);
        String token = IdUtil.simpleUUID();
        LoginUserBean loginUserBean = (LoginUserBean) authentication.getPrincipal();
        redisUtils.set(AppContants.APP_LOGIN_PREFIX + token, JSONObject.toJSONString(loginUserBean), 300000);
        Map<String, Object> authInfo = new HashMap<>();
        if (applicationProperties.isDebug()) {
            authInfo.put("token", token);
            authInfo.put("rsaToken", generateAsaToken(token));
            authInfo.put("user", loginUserBean);
        } else {
            authInfo.put("token", token);
            authInfo.put("user", loginUserBean);
        }
        return Result.ok("success", authInfo);
    }

    public String generateAsaToken(String token) {
        RSA rsa = new RSA(null, securityProperties.getPublicKey());
        return rsa.encryptBase64(token + "_" +System.currentTimeMillis(), KeyType.PublicKey);
    }
}