package com.dji.sample.patches.service.impl;

import com.dji.sample.common.error.CommonErrorEnum;
import com.dji.sample.component.mqtt.model.RequestsReply;
import com.dji.sample.patches.dao.ShpToDataSourceMapper;
import com.dji.sample.patches.model.entity.LotInfo;
import com.dji.sample.patches.service.ShpToDataSourceService;
import com.dji.sample.patches.utils.FormatConversionUtil;
import com.dji.sample.patches.utils.GeoToolsUtil;
import com.dji.sample.patches.utils.MultipartFileTOFileUtil;
import com.dji.sample.patches.utils.ShapeFileUtil;
import com.dji.sample.patches.xml.mode.XMLTemplateModel;
import com.dji.sample.patches.xml.utils.CreateWaylineFileUtils;
import org.locationtech.jts.geom.Coordinate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import static com.dji.sample.common.error.CommonErrorEnum.ILLEGAL_ARGUMENT;
import static com.dji.sample.patches.utils.ZipUtil.compressToKMZ;
import static org.locationtech.jts.io.WKTConstants.POLYGON;

@Service
public class ShpToDataSourceServiceImpl implements ShpToDataSourceService {
    @Autowired
    private ShpToDataSourceMapper mapper;
    String head = POLYGON;
    double airportLat = 28.624514734; // 机场纬度
    double airportLon = 115.856725497; // 机场经度

    String kmlFilePath = "src/main/resources/template/wpmz/template.kml"; // KML文件路径
    String wpmlFilePath = "src/main/resources/template/wpmz/waylines.wpml"; // WPML文件路径
    String end = ".kmz";
    String json;

    public List<LotInfo> insertGeo(MultipartFile file, String workspaceId, String waylineName) throws IOException {
        List<LotInfo> list = new ArrayList<>();
        MultipartFileTOFileUtil multipartFileTOFileUtil = new MultipartFileTOFileUtil();
        File file1 = multipartFileTOFileUtil.multipartFile2File(file);
        List<String> s = ShapeFileUtil.shpToGeoJson(file1);
        String[] arr1 = FormatConversionUtil.formatConversion(s);
        for (int i = 0; i < arr1.length; i++) {
            LotInfo lotInfo = new LotInfo();
            String temp = arr1[i].trim();
            temp = FormatConversionUtil.modifySpacesAndCommas(temp);
            json = head + temp;
            String uuid = UUID.randomUUID().toString();
            String bsm = uuid.replaceAll("-", "");
            lotInfo.setBsm(bsm);
            lotInfo.setWorkspaceId(workspaceId);
            lotInfo.setDkfw(json);
            lotInfo.setDkbh("dkbh" + i);
            mapper.insert(lotInfo);
            list.add(lotInfo);
            System.out.println(lotInfo);
        }
        Coordinate[] coordinates = GeoToolsUtil.getRoutePointOrder(list, airportLat, airportLon);
        XMLTemplateModel xmlModel = XMLTemplateModel.init(coordinates, list);
        CreateWaylineFileUtils.createWaylineFile(xmlModel);
        String destinationKMZFilePath = "src/main/resources/template/kmz/" + waylineName + ".kmz";
        try {
            compressToKMZ(kmlFilePath, wpmlFilePath, destinationKMZFilePath);
            System.out.println("Files compressed to KMZ successfully.");
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println("Error compressing files to KMZ: " + e.getMessage());
        }
        return list;
    }

    public ResponseEntity<Resource> backWayline(String fileName) {
        String name = fileName + end;
        try {
            File kmzFile = new File("src/main/resources/template/kmz/" + name);
            boolean kzm=(kmzFile.exists());
            System.out.println(kzm);
            System.out.println(kmzFile);
            if (!kzm) {
                System.out.println(kzm);
                // 如果文件不存在，返回404 Not Found响应
                return ResponseEntity.status(HttpStatus.NOT_FOUND).body(null);
            }
            HttpHeaders headers = new HttpHeaders();
            headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + name + "\"");
            headers.add(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_OCTET_STREAM_VALUE);
            return ResponseEntity.ok().headers(headers).contentLength(kmzFile.length()).
                    contentType(MediaType.APPLICATION_OCTET_STREAM).body(new FileSystemResource(kmzFile));
        } catch (Exception e) {
            e.printStackTrace();
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(null);
        }
    }
}