package com.ruoyi.airline.service.impl;

import com.ruoyi.airline.domain.api.IAirlineFileDomain;
import com.ruoyi.airline.domain.model.AirlineFile;
import com.ruoyi.airline.domain.model.kml.KmlInfo;
import com.ruoyi.airline.domain.uitl.KmlFileUtils;
import com.ruoyi.airline.domain.uitl.WayPointUitls;
import com.ruoyi.airline.service.api.IAirlineFileService;
import com.ruoyi.airline.service.convert.AirlineFileServiceConvert;
import com.ruoyi.airline.service.dto.AirLinePointDTO;
import com.ruoyi.airline.service.dto.AirlineFileDTO;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.exception.base.BaseException;
import com.ruoyi.common.core.utils.file.FileUtils;
import com.ruoyi.system.api.RemoteFileService;
import org.apache.commons.compress.archivers.ArchiveEntry;
import org.apache.commons.compress.archivers.ArchiveInputStream;
import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import java.util.UUID;

/**
 * 航线文件Service实现类
 *
 * @author ruoyi
 * @date 2026-01-17
 */
@Service
public class AirlineFileServiceImpl implements IAirlineFileService {

    private static final Logger log = LoggerFactory.getLogger(AirlineFileServiceImpl.class);

    @Autowired
    private RemoteFileService remoteFileService;

    @Autowired
    private IAirlineFileDomain iAirlineFileDomain;


    @Override
    public AirlineFileDTO save(AirlineFileDTO dto) {
        AirlineFile model = AirlineFileServiceConvert.toModel(dto);
        Long id = iAirlineFileDomain.save(model);
        dto.setId(id);
        return dto;
    }


    /**
     * 上传航线文件，如果是KMZ的需要转换成 waypoint 的，并且需要将 原始航线文件保存。
     * 并且限制航线修改，因为暂时没做到 从waypoingt 转 KMZ
     *
     * @param file
     * @return
     */
    @Override
    public AirlineFileDTO parseAndUplload(MultipartFile file) {

        String originalFilename = file.getOriginalFilename();
        String fileExtension = "";
        if (originalFilename != null && originalFilename.lastIndexOf('.') > 0) {
            fileExtension = originalFilename.substring(originalFilename.lastIndexOf('.') + 1).toLowerCase();
        }

        try {
            if ("zip".equals(fileExtension) || "kmz".equals(fileExtension)) {
                // 处理ZIP/KMZ文件
                KmlInfo kmlInfo = new KmlInfo();
                try (ArchiveInputStream archiveInputStream = new ZipArchiveInputStream(file.getInputStream());) {
                    ArchiveEntry entry;
                    while (!Objects.isNull(entry = archiveInputStream.getNextEntry())) {
                        String name = entry.getName();
                        if (name.toLowerCase().endsWith(".kml")) {
                            // 解KML文件
                            kmlInfo = KmlFileUtils.parseKml(archiveInputStream);
                        }
                    }

                    if (Objects.isNull(kmlInfo)) {
                        throw new BaseException("kmz文件内容缺失");
                    }
                    String globalHeight = kmlInfo.getDocument().getFolder().getGlobalHeight();
                    R<String> fileUrl = remoteFileService.uploadFileByData(UUID.randomUUID().toString(), "waypoints", WayPointUitls.kmz2waypoint(kmlInfo));
                    AirlineFileDTO dto = new AirlineFileDTO();
                    // 去除文件名中的后缀名
                    int pos = originalFilename.lastIndexOf(".");
                    String fileNameWithoutExtension = pos > 0 ? originalFilename.substring(0, pos) : originalFilename;
                    List<AirlineFile>  airlineFiles =iAirlineFileDomain.selectFileNameLike(fileNameWithoutExtension);

                    List<String> fileNames = airlineFiles.stream().map(AirlineFile::getName).toList();
                    String newFileName = FileUtils.generateUniqueFileName(fileNameWithoutExtension, fileNames);
                    dto.setFileName(newFileName);
                    dto.setFileUrl(fileUrl.getData());
                    dto.setAirVendor(kmlInfo.getDocument().getKmlMissionConfig().getDroneInfo().getDroneEnumValue());
                    dto.setAirType(kmlInfo.getDocument().getKmlMissionConfig().getDroneInfo().getDroneEnumValue());
                    return dto;
                }
            } else if ("waypoints".equals(fileExtension)) {
                // 直接处理Waypoints文件
                AirlineFileDTO dto = new AirlineFileDTO();
                // 去除文件名中的后缀名
                int pos = originalFilename.lastIndexOf(".");
                String fileNameWithoutExtension = pos > 0 ? originalFilename.substring(0, pos) : originalFilename;
                List<AirlineFile>  airlineFiles =iAirlineFileDomain.selectFileNameLike(fileNameWithoutExtension);

                List<String> fileNames = airlineFiles.stream().map(AirlineFile::getName).toList();
                String newFileName = FileUtils.generateUniqueFileName(fileNameWithoutExtension, fileNames);
                dto.setFileName(newFileName);
                
                // 直接读取文件内容并上传
                R<String> fileUrl = remoteFileService.uploadFileByData(UUID.randomUUID().toString(), "waypoints", Arrays.toString(file.getBytes()));
                dto.setFileUrl(fileUrl.getData());
                dto.setAirVendor("");
                dto.setAirType("");
                return dto;
            } else {
                throw new BaseException("不支持的文件格式，请上传KMZ或Waypoints文件");
            }
        } catch (IOException e) {
            throw new BaseException("文件处理失败");
        } catch (Exception e) {
            log.error("航线文件处理失败", e);
            throw new BaseException("航线文件处理失败");
        }
    }

    /**
     * 航点编辑，直接将大疆KMZ转换成waypoints操作，就不需要区分大疆还是拓恒了
     *
     * @param airlineFile 航线文件dto
     * @return
     */
    @Override
    public AirlineFileDTO createOrupdate(AirlineFileDTO airlineFile) {

        StringBuilder waypointBuilder = new StringBuilder("QGC WPL 110\n");
        List<AirLinePointDTO> LineDto = airlineFile.getLinePointDtoList();
        // 新建字节输出流,Freemarker操作此输出流写入生成的业务文件.
        if (LineDto != null && !LineDto.isEmpty()) {
            for (int i = 0; i < LineDto.size(); i++) {
                AirLinePointDTO point = LineDto.get(i);
                waypointBuilder.append(WayPointUitls.formatWaypointLine(point, i)).append("\n");
            }

            // 上传文件
            R<String> fileUrl = remoteFileService.uploadFileByData(UUID.randomUUID().toString(), "waypoints", waypointBuilder.toString());

            //保存航线文件数据
            airlineFile.setFileUrl(fileUrl.getData());
            airlineFile.setSource("airport");
            airlineFile.setStatus(airlineFile.getStatus() == null ? 1 : airlineFile.getStatus());
            AirlineFile model = AirlineFileServiceConvert.toModel(airlineFile);
            Long id = iAirlineFileDomain.save(model);
            model.setId(id);
            return AirlineFileServiceConvert.toDTO(model);
        }
        return null;

    }

    @Override
    public AirlineFile selectById(Long airlineId) {
        if (airlineId == null) {
            return null;
        }
        List<Long> ids = List.of(airlineId);
        List<AirlineFile> airlineFiles = iAirlineFileDomain.selectFileListByIds(ids);
        return airlineFiles != null && !airlineFiles.isEmpty() ? airlineFiles.get(0) : null;
    }
}