/*
 *      Copyright (c) 2018-2028, Chill Zhuang All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice,
 *  this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in the
 *  documentation and/or other materials provided with the distribution.
 *  Neither the name of the dreamlu.net developer nor the names of its
 *  contributors may be used to endorse or promote products derived from
 *  this software without specific prior written permission.
 *  Author: Chill 庄骞 (smallchill@163.com)
 */
package org.sxkj.gd.workorder.service.impl;

import org.sxkj.gd.workorder.entity.GdTaskResultEntity;
import org.sxkj.gd.workorder.vo.GdTaskResultVO;
import org.sxkj.gd.workorder.excel.GdTaskResultExcel;
import org.sxkj.gd.workorder.mapper.GdTaskResultMapper;
import org.sxkj.gd.workorder.service.IGdTaskResultService;
import org.sxkj.common.utils.HeaderUtils;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import org.springblade.core.mp.base.BaseServiceImpl;
import org.springblade.core.tool.utils.Func;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URL;
import java.net.URLConnection;
import java.nio.charset.StandardCharsets;
import java.util.Date;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * 成果表 服务实现类
 *
 * @author lw
 * @since 2026-01-14
 */
@Service
public class GdTaskResultServiceImpl extends BaseServiceImpl<GdTaskResultMapper, GdTaskResultEntity> implements IGdTaskResultService {

	@Override
	public IPage<GdTaskResultVO> selectGdTaskResultPage(IPage<GdTaskResultVO> page, GdTaskResultVO gdTaskResult) {
		return page.setRecords(baseMapper.selectGdTaskResultPage(page, gdTaskResult));
	}

	@Override
	public List<GdTaskResultVO> listByPatrolTaskId(Long patrolTaskId) {
		List<GdTaskResultVO> gdTaskResultVOS = baseMapper.selectGdTaskResultListByPatrolTaskId(patrolTaskId);
		for (GdTaskResultVO gdTaskResultVO : gdTaskResultVOS) {
			gdTaskResultVO.setResultUrl(unescapeUrl(gdTaskResultVO.getResultUrl()));
		}
		return gdTaskResultVOS;
	}


	@Override
	public List<GdTaskResultExcel> exportGdTaskResult(Wrapper<GdTaskResultEntity> queryWrapper) {
		List<GdTaskResultExcel> gdTaskResultList = baseMapper.exportGdTaskResult(queryWrapper);
		//gdTaskResultList.forEach(gdTaskResult -> {
		//	gdTaskResult.setTypeName(DictCache.getValue(DictEnum.YES_NO, GdTaskResult.getType()));
		//});
		return gdTaskResultList;
	}

	@Override
	public boolean saveBatchTaskResult(List<GdTaskResultEntity> gdTaskResultEntities) {
		if (gdTaskResultEntities == null || gdTaskResultEntities.isEmpty()) {
			log.error("saveBatchTaskResult-批量新增-对外接口数据为空");
			return false;
		}
		gdTaskResultEntities.forEach(gdTaskResult -> {
			String resultUrl = gdTaskResult.getResultUrl();
			// 使用HeaderUtils处理区域代码
			// resultUrl =  http://220.177.172.27:8100/S3/xcy010.eoshlw.internal.jazwy.cn/2026/04/23/DJI_20260128135433_0005_V_20260423111422A015.jpeg
			// resultUrl = http://220.177.172.27:8100/S3/xcy010.eoshlw.internal.jazwy.cn/2026/04/23/2026-04-23-09-50-29-0_20260423190046A001.mp4
			gdTaskResult.setAttachmentType(HeaderUtils.getAttachmentType(resultUrl));
			String processedAreaCode = HeaderUtils.processAreaCode(gdTaskResult.getAreaCode());
			gdTaskResult.setAreaCode(processedAreaCode);
			gdTaskResult.setStatus(0);
			gdTaskResult.setUpdateTime(new Date());
			gdTaskResult.setCreateTime(new Date());
			gdTaskResult.setIsDeleted(0);
			gdTaskResult.setCreateDept(1L);
			gdTaskResult.setUpdateUser(1L);
			gdTaskResult.setDistributeStatus(0);
		});
		// 执行批量保存并返回结果
		int result = baseMapper.insertBatch(gdTaskResultEntities);
		return result > 0;
	}

	@Override
	public boolean updateTaskResultById(GdTaskResultEntity taskResult) {
		int result = baseMapper.updateTaskResultById(taskResult);
		return result > 0;
	}

	/**
	 * 将URL中的HTML/XML转义字符还原为原始字符
	 * 主要处理 &amp; 转换为 &
	 *
	 * @param url 包含转义字符的URL
	 * @return 还原后的URL
	 */
	public static String unescapeUrl(String url) {
		if (url == null || url.isEmpty()) {
			return url;
		}

		// 按照优先级顺序进行替换，避免重复替换问题
		String result = url;

		// 处理常见的HTML/XML转义字符
		result = result.replace("&amp;", "&");     // &符号
		result = result.replace("&lt;", "<");      // 小于号
		result = result.replace("&gt;", ">");      // 大于号
		result = result.replace("&quot;", "\"");   // 双引号
		result = result.replace("&#39;", "'");     // 单引号
		result = result.replace("&apos;", "'");    // 单引号

		return result;
	}

	@Override
	public void downloadResultFiles(String ids, HttpServletResponse response) {
		// 根据ID列表查询成果记录
		List<Long> idList = Func.toLongList(ids);
		List<GdTaskResultEntity> resultList = listByIds(idList);

		if (resultList == null || resultList.isEmpty()) {
			throw new RuntimeException("未找到成果数据");
		}

		// 设置响应头
		response.setContentType("application/zip");
		response.setHeader("Content-Disposition", "attachment; filename=result_files.zip");

		try (ZipOutputStream zos = new ZipOutputStream(response.getOutputStream())) {
			for (GdTaskResultEntity result : resultList) {
				String resultUrl = result.getResultUrl();
				if (resultUrl == null || resultUrl.isEmpty()) {
					continue;
				}

				// 处理转义字符
				resultUrl = unescapeUrl(resultUrl);

				try {
					// 从URL下载文件
					URL url = new URL(resultUrl);
					URLConnection connection = url.openConnection();
					connection.setConnectTimeout(5000);
					connection.setReadTimeout(10000);

					// 从URL中提取文件名
					String fileName = extractFileName(resultUrl, result.getId());

					// 添加到ZIP
					ZipEntry zipEntry = new ZipEntry(fileName);
					zos.putNextEntry(zipEntry);

					try (InputStream is = connection.getInputStream()) {
						byte[] buffer = new byte[4096];
						int len;
						while ((len = is.read(buffer)) > 0) {
							zos.write(buffer, 0, len);
						}
					}

					zos.closeEntry();
				} catch (Exception e) {
					// 单个文件下载失败，继续处理其他文件
					// 可以记录日志
				}
			}
		} catch (IOException e) {
			throw new RuntimeException("下载文件失败", e);
		}
	}

	/**
	 * 从URL中提取文件名
	 */
	private String extractFileName(String url, Long resultId) {
		if (url == null || url.isEmpty()) {
			return resultId + "_unknown";
		}

		// 从URL中提取最后一部分作为文件名
		int lastSlash = url.lastIndexOf('/');
		if (lastSlash != -1 && lastSlash < url.length() - 1) {
			String fileName = url.substring(lastSlash + 1);
			// 处理可能的查询参数
			int questionMark = fileName.indexOf('?');
			if (questionMark != -1) {
				fileName = fileName.substring(0, questionMark);
			}
			return resultId + "_" + fileName;
		}

		return resultId + "_file";
	}

}