package cn.exrick.xboot.base.controller.common;

import cn.exrick.xboot.core.common.annotation.RateLimiter;
import cn.exrick.xboot.core.common.constant.CommonConstant;
import cn.exrick.xboot.core.common.redis.RedisTemplateHelper;
import cn.exrick.xboot.core.common.sms.SmsUtil;
import cn.exrick.xboot.core.common.utils.CommonUtil;
import cn.exrick.xboot.core.common.utils.CreateVerifyCode;
import cn.exrick.xboot.core.common.utils.IpInfoUtil;
import cn.exrick.xboot.core.common.utils.ResultUtil;
import cn.exrick.xboot.core.common.vo.Result;
import cn.exrick.xboot.core.service.SettingService;
import cn.exrick.xboot.core.service.UserService;
import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.StrUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author Exrickx
 */
@Api(tags = "验证码接口")
@RequestMapping("/xboot/common/captcha")
@RestController
@Transactional
@Slf4j
public class CaptchaController {

    @Autowired
    private SmsUtil smsUtil;

    @Autowired
    private RedisTemplateHelper redisTemplate;

    @Autowired
    private IpInfoUtil ipInfoUtil;

    @Autowired
    private UserService userService;

    @Autowired
    private SettingService settingService;

    @RequestMapping(value = "/init", method = RequestMethod.GET)
    @ApiOperation(value = "初始化验证码")
    public Result<Object> initCaptcha() {

        String captchaId = IdUtil.simpleUUID();
        String code = new CreateVerifyCode().randomStr(4);
        // 缓存验证码
        redisTemplate.set(captchaId, code, 2L, TimeUnit.MINUTES);
        Map<String,String> map = new HashMap<String,String>();
        map.put("captchaId",captchaId);
        map.put("code",code);
        return ResultUtil.data(map);
    }

    @RequestMapping(value = "/draw/{captchaId}", method = RequestMethod.GET)
    @ApiOperation(value = "根据验证码ID获取图片")
    public void drawCaptcha(@PathVariable("captchaId") String captchaId,
                            HttpServletResponse response) throws IOException {

        // 得到验证码 生成指定验证码
        String code = redisTemplate.get(captchaId);
        CreateVerifyCode vCode = new CreateVerifyCode(116, 36, 4, 10, code);
        response.setContentType("image/png");
        vCode.write(response.getOutputStream());
    }

    @RequestMapping(value = "/sendRegistSms/{mobile}", method = RequestMethod.GET)
    @ApiOperation(value = "发送注册短信验证码")
    public Result<Object> sendRegistSmsCode(@PathVariable String mobile, HttpServletRequest request) {

        return sendSms(mobile, 2, 0, request);
    }

    @RequestMapping(value = "/sendLoginSms/{mobile}", method = RequestMethod.GET)
    @ApiOperation(value = "发送登录短信验证码")
    @RateLimiter(name="sendLoginSms", rate = 1, ipLimit = true)
    public Result<Object> sendLoginSmsCode(@PathVariable String mobile, HttpServletRequest request) {

        return sendSms(mobile, 1, 0, request);
    }

    @RequestMapping(value = "/sendResetSms/{mobile}", method = RequestMethod.GET)
    @ApiOperation(value = "发送重置密码短信验证码")
    public Result<Object> sendResetSmsCode(@PathVariable String mobile, HttpServletRequest request) {

        return sendSms(mobile, 1, 5, request);
    }

    @RequestMapping(value = "/sendEditMobileSms/{mobile}", method = RequestMethod.GET)
    @ApiOperation(value = "发送修改手机短信验证码")
    public Result<Object> sendEditMobileSmsCode(@PathVariable String mobile, HttpServletRequest request) {

        if (userService.findByMobile(mobile) != null) {
            return ResultUtil.error("该手机号已绑定账户");
        }
        return sendSms(mobile, 0, 0, request);
    }

    /**
     * @param mobile       手机号
     * @param range        发送范围 0发送给所有手机号 1只发送给注册手机 2只发送给未注册手机
     * @param templateType 0通用模版 1注册 2登录 3修改手机 4修改密码 5重置密码 6工作流模版
     */
    public Result<Object> sendSms(String mobile, Integer range, Integer templateType, HttpServletRequest request) {

        if (range == 1 && userService.findByMobile(mobile) == null) {
            return ResultUtil.error("手机号未注册");
        } else if (range == 2 && userService.findByMobile(mobile) != null) {
            return ResultUtil.error("手机号已注册");
        }
        // IP限流 1分钟限1个请求
        String key = "sendSms:" + ipInfoUtil.getIpAddr(request);
        String value = redisTemplate.get(key);
        if (StrUtil.isNotBlank(value)) {
            return ResultUtil.error("您发送的太频繁啦，请稍后再试");
        }
        // 生成6位数验证码
        String code = CommonUtil.getRandomNum();
        // 缓存验证码
        redisTemplate.set(CommonConstant.PRE_SMS + mobile, code, 5L, TimeUnit.MINUTES);
        // 发送验证码
        smsUtil.sendCode(mobile, code, templateType);
        // 请求成功 标记限流
        redisTemplate.set(key, "sended", 1L, TimeUnit.MINUTES);
        return ResultUtil.success("发送短信验证码成功");
    }
}