package com.tld.service.impl;

import com.tld.mapper.WebPrintMapper;
import com.tld.model.TldPrint;
import com.tld.service.WebPrintService;
import com.tld.util.DateUtil;
import lombok.RequiredArgsConstructor;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

@Service
@RequiredArgsConstructor
public class WebPrintServiceImpl implements WebPrintService {

    private final WebPrintMapper webPrintMapper;
    //redis锁
    @Autowired
    private RedissonClient redissonClient;

    @Override
    public Map<String, Object> getSerial(TldPrint tldPrint, HttpServletRequest request) {
        Map<String, Object> map = new HashMap<>();
        //redis并发锁
        RLock lock = redissonClient.getLock(request.getHeader("userId"));
        lock.lock();
        try{
            tldPrint.setUserId(request.getHeader("userId"));
            tldPrint.setProducDate(DateUtil.dateConversion(tldPrint.getProducDate()));
            int count = webPrintMapper.getSerialCount(tldPrint);
            String serial = generateSerial((count + 1) + "");
            String num = generateNum(tldPrint.getNum());
            String materialCode = generateMaterialCode(tldPrint.getMaterialCode());
            String supplierCode = generateSupplierCode(tldPrint.getSupplierId());
            tldPrint.setNum(num);
            tldPrint.setSerial(serial);
            webPrintMapper.addPrint(tldPrint);
            String barCode = materialCode + supplierCode + tldPrint.getProducDate() + num + serial;
            map.put("data", barCode);
            map.put("msg", "200");
        }catch (Exception e){
            map.put("msg", "500");
            map.put("errMsg", "失败");
            e.printStackTrace();
        } finally {
            //释放锁
            lock.unlock();
        }
        return map;
    }
    /**
     * 供应商编号生成
     * @param code 参数
     * @return 供应商编号
     */
    public String generateSupplierCode(String code){
        StringBuilder stringBuilder = new StringBuilder();
        for(int i = 0; i < 7 - code.length(); i++){
            stringBuilder.append("#");
        }
        stringBuilder.append(code);
        return stringBuilder.toString();
    }
    /**
     * 物料编号生成
     * @param code 参数
     * @return 物料编号
     */
    public String generateMaterialCode(String code){
        StringBuilder stringBuilder = new StringBuilder();
        for(int i = 0; i < 16 - code.length(); i++){
            stringBuilder.append("#");
        }
        stringBuilder.append(code);
        return stringBuilder.toString();
    }

    /**
     * 连番号生成
     * @param count 参数
     * @return 连番号
     */
    public String generateSerial(String count){
        StringBuilder stringBuilder = new StringBuilder("1");
        for(int i = 0; i < 5 - count.length(); i++){
            stringBuilder.append("0");
        }
        stringBuilder.append(count);
        return stringBuilder.toString();
    }
    /**
     * 数量生成
     * @param num 参数
     * @return 数量
     */
    public String generateNum(String num){
        StringBuilder stringBuilder = new StringBuilder();
        for(int i = 0; i < 6 - num.length(); i++){
            stringBuilder.append("#");
        }
        stringBuilder.append(num);
        return stringBuilder.toString();
    }
}