package com.glxp.api.util;


import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import com.glxp.api.entity.basic.UdiEntity;
import com.glxp.api.res.inout.VailCodeResultResponse;
import com.glxp.api.util.udi.FilterUdiUtils;

import java.util.*;
import java.util.stream.Collectors;

public class VailBatchCodeUtils {

    public static List<VailCodeResultResponse> batchVailCode(String codes) {
        List<String> codeList = List.of(codes.split(";"));
        if (CollUtil.isEmpty(codeList)) return null;
        codeList = codeList.stream().distinct().collect(Collectors.toList());
        List<VailCodeResultResponse> vailCodeResultResponses = new ArrayList<>();
        List<String> prefixes = Arrays.asList("01", "11", "17", "10", "21");
        if (hasMoreThanTwoPrefixes(codeList, prefixes.toArray(new String[0]))) {
            //判断是否多段扫码
            String mutiCode = filterAndConcatenate(codeList, prefixes);
            UdiEntity temp = FilterUdiUtils.getUdi(mutiCode);
            if (temp != null) {
                codeList.clear();
                codeList.add(mutiCode);
            }
        }

        for (String code : codeList) {
            VailCodeResultResponse vailCodeResultResponse = new VailCodeResultResponse();
            UdiEntity udiEntity = FilterUdiUtils.getUdi(code);
            vailCodeResultResponse.setCode(code);
            if (udiEntity != null) {
                vailCodeResultResponse.setStatus(1);
                vailCodeResultResponse.setErrMsg("解析正确");
            } else {
                vailCodeResultResponse.setStatus(2);
                vailCodeResultResponse.setErrMsg("追溯码格式错误");
            }
            vailCodeResultResponses.add(vailCodeResultResponse);
        }
        return vailCodeResultResponses;
    }

    public static boolean hasMoreThanTwoPrefixes(List<String> codes, String[] prefixes) {
        int uniquePrefixCount = 0;
        boolean[] prefixFound = new boolean[prefixes.length];
        for (String code : codes) {
            for (int i = 0; i < prefixes.length; i++) {
                if (code.startsWith(prefixes[i]) && !prefixFound[i]) {
                    prefixFound[i] = true;
                    uniquePrefixCount++;
                    break;
                }
            }
        }
        return uniquePrefixCount > 1;
    }

    public static void main(String[] args) {
        String code = "MA.156.M0.100442.0WET6505.S1394.M230624.L230601.DS22306241.E250624.V250623.C5";
//        String code = "0116922943800657112406011724063010JY999\u001D210003;0118822943800657112406011724063010JY999\u001D210003";
//        String code = "0116922943800657;1124060117240630;10JY999\u001D210003;www.baidu.com;32329382;0118822943800657112406011724063010JY999\u001D210003";

        List<VailCodeResultResponse> vailCodeResultResponses = batchVailCode(code);
        for (VailCodeResultResponse vailCodeResultResponse : vailCodeResultResponses) {
            System.out.println(vailCodeResultResponse.getCode() + ":" + vailCodeResultResponse.getStatus() + ":" + vailCodeResultResponse.getErrMsg());
        }

    }

    public static String filterAndConcatenate(List<String> codeList, List<String> prefixes) {
        Set<String> matchedPrefixes = new HashSet<>();
        StringBuilder concatenatedResult = new StringBuilder();
        for (String prefix : prefixes) {
            for (String code : codeList) {
                if (code.length() >= 2 && code.startsWith(prefix)) {
                    if (!matchedPrefixes.contains(prefix)) {
                        matchedPrefixes.add(prefix);
                        concatenatedResult.append(code);
                        break;
                    }
                }
            }
            UdiEntity udiEntity = FilterUdiUtils.getUdi(concatenatedResult.toString());
            if (udiEntity != null && StrUtil.isNotEmpty(udiEntity.getBatchNo())) {
                if (concatenatedResult.toString().endsWith("10" + udiEntity.getBatchNo())) {
                    concatenatedResult.append("\u001D");
                }
            }
        }
        return concatenatedResult.toString();
    }

}