package com.ruoyi.wisdomarbitrate.utils;

import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.StrUtil;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.wisdomarbitrate.domain.FatchRule;
import com.tencentcloudapi.bsca.v20210811.models.LicenseSummary;
import com.tencentcloudapi.common.Credential;
import com.tencentcloudapi.common.exception.TencentCloudSDKException;
import com.tencentcloudapi.common.profile.ClientProfile;
import com.tencentcloudapi.common.profile.HttpProfile;
import com.tencentcloudapi.ocr.v20181119.OcrClient;
import com.tencentcloudapi.ocr.v20181119.models.*;
import org.json.JSONArray;
import org.json.JSONObject;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.*;
import java.util.stream.Collectors;

public class OCRUtils {
    //API的SecretId
    private static final String SECRET_ID = "AKIDeEf2A8uX1HSainvvnXAc3X9ZlhtyvkMp";
    //API的SecretKey
    private static final String SECRET_KEY = "QjphKo8zkHZigT8j9PVtFPJyfIvO3d6V";
    // 仲裁申请书识别字段
    private static final String[] applicantName = {"申请人", "统一社会信用代码", "负责人", "住所", "联系地址"
            , "委托代理人", "联系电话", "电子邮件", "被申请人", "居民身份证号码", "仲裁请求", "事实和理由"};
    // 贷款合同识别字段
    private static final String[] contractName = {
            "合同编号", "甲方(贷款人)", "或委托代理人签字:", "本合同的初始贷款年利率为", "乙方确认有效的电子信箱地址为"};
    // 调解协议识别字段
    private static final String[] accordName = {"金融消费纠纷基本情况", "经调解，双方自愿达成如下协议"};
    // 授权委托书识别字段
    private static final String[] powerAttorneyName = {"职务"};

    /**
     * pdf识别成文字
     *
     * @param imageBase64
     * @param pageNumber
     * @param fatchRules  抓取规则
     * @return
     */
    public static String pdfIdentifyText(String imageBase64, Integer pageNumber, List<FatchRule> fatchRules) {
        StringBuilder respStr = new StringBuilder();
        try {
            // 实例化一个认证对象，入参需要传入腾讯云账户 SecretId 和 SecretKey，此处还需注意密钥对的保密
            // 代码泄露可能会导致 SecretId 和 SecretKey 泄露，并威胁账号下所有资源的安全性。以下代码示例仅供参考，建议采用更安全的方式来使用密钥，请参见：https://cloud.tencent.com/document/product/1278/85305
            // 密钥可前往官网控制台 https://console.cloud.tencent.com/cam/capi 进行获取
            Credential cred = new Credential(SECRET_ID, SECRET_KEY);
            // 实例化一个http选项，可选的，没有特殊需求可以跳过
            HttpProfile httpProfile = new HttpProfile();
            httpProfile.setEndpoint("ocr.tencentcloudapi.com");
            // 实例化一个client选项，可选的，没有特殊需求可以跳过
            ClientProfile clientProfile = new ClientProfile();
            clientProfile.setHttpProfile(httpProfile);
            // 实例化要请求产品的client对象,clientProfile是可选的
            OcrClient client = new OcrClient(cred, "ap-beijing", clientProfile);
            // 实例化一个请求对象,每个接口都会对应一个request对象
            GeneralAccurateOCRRequest req = new GeneralAccurateOCRRequest();
            req.setImageBase64(imageBase64);
            req.setIsPdf(true);
            req.setPdfPageNumber(pageNumber.longValue());
            // 返回的resp是一个SmartStructuralOCRV2Response的实例，与请求对象对应
            GeneralAccurateOCRResponse resp = client.GeneralAccurateOCR(req);
            // 输出json格式的字符串回包
            System.out.println(GeneralAccurateOCRResponse.toJsonString(resp));
            // 获取响应内容
            TextDetection[] textDetections = resp.getTextDetections();
            if (textDetections == null || textDetections.length == 0) {
                return respStr.toString();
            }
            for (TextDetection textDetection : textDetections) {
                respStr.append(textDetection.getDetectedText());
            }
        } catch (TencentCloudSDKException e) {
            throw new ServiceException("ocr识别失败");
        }
        if (respStr.toString().endsWith(String.valueOf(pageNumber))) {
            int lastIndexOf = respStr.toString().lastIndexOf(String.valueOf(pageNumber));
            return respStr.toString().substring(0, lastIndexOf);
        }
        return respStr.toString();
    }


    public static String pdfConvertBase64(String pathUrl) {
        try {
            File file = new File(pathUrl);
            FileInputStream fileInputStream = new FileInputStream(file);
            byte[] fileBytes = new byte[(int) file.length()];
            fileInputStream.read(fileBytes);
            fileInputStream.close();
            // 将字节数组转换为Base64值
            return Base64.getEncoder().encodeToString(fileBytes);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 根据抓取规则获取内容
     *
     * @param ocrText    ocr识别的text
     * @param fatchRules 抓取规则
     * @return
     */
    public static void fatchRuleGetContent(String ocrText, List<FatchRule> fatchRules, Map<String, String> fatchMap) {
        if (StrUtil.isEmpty(ocrText) || CollectionUtil.isEmpty(fatchRules)) {
            return;
        }
        for (FatchRule fatchRule : fatchRules) {
            // 从后往前抓取
            if (fatchRule.getFatchOrder() != null && fatchRule.getFatchOrder() == 1) {
                reverseSubstringText(ocrText, fatchRule, fatchMap,null);
            } else {
                // 从前往后抓取
                substringText(ocrText, fatchRule, fatchMap,null);

            }
        }


    }

    /**
     * 根据抓取规则获取内容
     *
     * @param ocrText    ocr识别的text
     * @param fatchRules 抓取规则
     * @return
     */
    public static void fatchRuleGetContent(String ocrText, List<FatchRule> fatchRules, Map<String, String> fatchMap, Long caseId) {
        if (StrUtil.isEmpty(ocrText) || CollectionUtil.isEmpty(fatchRules)) {
            return;
        }
        for (FatchRule fatchRule : fatchRules) {
            // 从后往前抓取
            if (fatchRule.getFatchOrder() != null && fatchRule.getFatchOrder() == 1) {
                reverseSubstringText(ocrText, fatchRule, fatchMap, caseId);
            } else {
                // 从前往后抓取
                substringText(ocrText, fatchRule, fatchMap, caseId);

            }
        }


    }


    /**
     * 正向截取字段
     *
     * @param text
     * @param fatchRule
     * @param fatchMap
     */
    private static void substringText(String text, FatchRule fatchRule, Map<String, String> fatchMap, Long caseId) {
        String startContent = fatchRule.getStartContent();
        String endContent = fatchRule.getEndContent();
        // 开始为空结束为空
        if (StrUtil.isEmpty(startContent) && StrUtil.isEmpty(endContent)) {
            fatchMap.put(fatchRule.getColumnName(), trimStr(text));
        } else if (StrUtil.isNotEmpty(startContent) && StrUtil.isEmpty(endContent)) {
            // 开始不为空结束为空
            int startContIndex = StrUtil.ordinalIndexOf(text, startContent, fatchRule.getStartContentRepeatOrder());
            if (startContIndex != -1 && text.length() >= (startContIndex + startContent.length())) {
                String substring = text.substring(startContIndex + startContent.length());
                // 去除\n
                fatchMap.put(fatchRule.getColumnName(), trimStr(substring));
            }

        } else if (StrUtil.isEmpty(startContent) && StrUtil.isNotEmpty(endContent)) {
            // 开始为空结束不为空
            int endContIndex = StrUtil.ordinalIndexOf(text, endContent, fatchRule.getEndContentRepeatOrder());
            if (endContIndex != -1) {
                String substring = text.substring(0, endContIndex);
                fatchMap.put(fatchRule.getColumnName(), trimStr(substring));
            }
        } else if (StrUtil.isNotEmpty(startContent) && StrUtil.isNotEmpty(endContent)) {
            // 开始结束不为空
            int startIndexOf = StrUtil.ordinalIndexOf(text, startContent, fatchRule.getStartContentRepeatOrder());
            int endIndexOf = StrUtil.ordinalIndexOf(text, endContent, fatchRule.getEndContentRepeatOrder());
            if (startIndexOf != -1 && endIndexOf != -1 && endIndexOf >= (startIndexOf + startContent.length()) && text.length() >= endIndexOf) {
                String substring = text.substring(startIndexOf + startContent.length(), endIndexOf);

                fatchMap.put(fatchRule.getColumnName(), trimStr(substring));

            }
        }
    }


    /**
     * 从后往前截取字符串
     *
     * @param text
     * @param fatchRule
     * @param fatchMap
     */
    public static void reverseSubstringText(String text, FatchRule fatchRule, Map<String, String> fatchMap, Long caseId) {

        // 反正字符串
        String reverseText = StrUtil.reverse(text);
        // 结束截取字段
        String reverseEndContent = "";
        // 开始截取字段
        String reverseStartContent = "";
        if (StrUtil.isNotEmpty(fatchRule.getEndContent())) {
            reverseEndContent = StrUtil.reverse(fatchRule.getEndContent());
        }
        if (StrUtil.isNotEmpty(fatchRule.getStartContent())) {
            reverseStartContent = StrUtil.reverse(fatchRule.getStartContent());
        }
        // 开始和结束截取都为空
        if (StrUtil.isEmpty(reverseStartContent) && StrUtil.isEmpty(reverseEndContent)) {
            fatchMap.put(fatchRule.getColumnName(), trimStr(text));
        } else if (StrUtil.isEmpty(reverseStartContent) && StrUtil.isNotEmpty(reverseEndContent)) {
            // 开始为空，结束不为空
            // 根据截取的序号查找出位置
            int indexOf = StrUtil.ordinalIndexOf(reverseText, reverseEndContent, fatchRule.getEndContentRepeatOrder());
            if (indexOf != -1) {
                String substring = reverseText.substring(0, indexOf);
                if (StrUtil.isNotEmpty(substring)) {
                    fatchMap.put(fatchRule.getColumnName(), trimStr(StrUtil.reverse(substring)));
                }
            }
        } else if (StrUtil.isNotEmpty(reverseStartContent) && StrUtil.isEmpty(reverseEndContent)) {
            // 开始不为空，结束为空
            int indexOf = StrUtil.ordinalIndexOf(reverseText, reverseStartContent, fatchRule.getStartContentRepeatOrder());
            if (indexOf != -1 && (indexOf + reverseStartContent.length() <= text.length())) {
                String substring = reverseText.substring(indexOf + reverseStartContent.length());
                if (StrUtil.isNotEmpty(substring)) {
                    fatchMap.put(fatchRule.getColumnName(), trimStr(StrUtil.reverse(substring)));
                }
            }

        } else if (StrUtil.isNotEmpty(reverseStartContent) && StrUtil.isNotEmpty(reverseEndContent)) {
            // 开始结束都不为空
            int endIndexOf = StrUtil.ordinalIndexOf(reverseText, reverseEndContent, fatchRule.getEndContentRepeatOrder());
            int startIndexOf = StrUtil.ordinalIndexOf(reverseText, reverseStartContent, fatchRule.getStartContentRepeatOrder());
            if (startIndexOf != -1 && endIndexOf != -1 && endIndexOf >= (startIndexOf + reverseStartContent.length()) && text.length() >= endIndexOf) {
                String substring = reverseText.substring(startIndexOf + reverseStartContent.length(), endIndexOf);
                if (StrUtil.isNotEmpty(substring)) {
                    fatchMap.put(fatchRule.getColumnName(), trimStr(StrUtil.reverse(substring)));
                }
            }
        }


    }

    /**
     * 去除末尾空格
     *
     * @param substring
     * @return
     */
    private static String trimStr(String substring) {
        if (StrUtil.isNotEmpty(substring)) {
            return StrUtil.trim(substring);
        } else {
            return "";
        }

    }

}