package com.fd.controller;

import com.fd.constant.Command;
import com.fd.constant.MsgCode;
import com.fd.constant.TypeCode;
import com.fd.dto.PageDto;
import com.fd.entity.FileEntity;
import com.fd.server.CmdServer;
import com.fd.server.FileServer;
import com.fd.server.VectorServer;
import com.fd.util.FileUtils;
import com.fd.util.R;
import io.swagger.annotations.ApiOperation;
import lombok.extern.log4j.Log4j2;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.util.Date;

/**
 * Created by Owen on 2019/11/12 0012 9:40
 *
 * 矢量数据
 */
@Log4j2
@RequestMapping("api/vector")
@RestController
public class VectorController {

    @Value("${input.file.path}")
    private String INPUT_FILE_PATH;

    @Value("${output.file.path}")
    private String OUTPUT_FILE_PATH;

    @Autowired
    private FileServer fileServer;

    @Autowired
    private VectorServer vectorServer;

    @Autowired
    private CmdServer cmdServer;



//    @ApiOperation("上传矢量数据，coord：坐标， directoryName：目录名称")
//    @PostMapping(value = "upload/{directoryName}/", consumes = { "multipart/form-data" })
//    private R upload(@RequestParam("file") MultipartFile file, @PathVariable("directoryName") String directoryName,
//                     @RequestParam(value = "coord",required = false) String coord){
//        log.info("run upload");
//        return fileServer.uploadFile(file, directoryName, TypeCode.FILE_TYPE_VECTOR);
//    }

    @ApiOperation("上传矢量数据，只能上传zip文件,里面的文件名必须跟压缩包一致, coord：坐标(可以为空), 坐标格式：0,0,0,0,0,0,0")
    @PostMapping(value = "upload", consumes = { "multipart/form-data" })
    private R upload(@RequestParam("file") MultipartFile file,
                     @RequestParam(value = "coord",required = false) String coord){
        log.info("run upload");

        // 文件名全名
        String fileName = file.getOriginalFilename();
        String s = StringUtils.substringAfterLast(fileName, ".");

        if (!"zip".equals(s)) {
            return new R(50007,MsgCode.E50007);
        }

        return vectorServer.uploadFile(file, coord);
    }


    @ApiOperation("解压zip文件")
    @GetMapping("unzip/{fileId}/")
    private R fileUnzip(@PathVariable("fileId") Long fileId) {
        log.info("run fileUnzip: {}", fileId);
        FileEntity entity = fileServer.findById(fileId);

        boolean unzip = FileUtils.unzip(entity.getFileUrl(), INPUT_FILE_PATH);

        if (!unzip) {
            log.info("zip error: {}", MsgCode.E51001);
            return new R(51001, MsgCode.E51001);
        }



        String fileName = StringUtils.substringBefore(entity.getFileName(), ".");

        // 判断文件内容是否跟目录名称一样
        String shpPath = INPUT_FILE_PATH + fileName + File.separator + fileName + ".shp";
        File file = new File(shpPath);
        if (!file.exists()) {
            log.info("zip error: {}", MsgCode.E51002);
            return new R(51002, MsgCode.E51002);
        }

        FileEntity fileEntity = new FileEntity();

        // 添加文件夹到数据库
        fileEntity.setFileName(fileName);
        fileEntity.setFileUrl(INPUT_FILE_PATH + fileName);
        fileEntity.setCreateTime(new Date());
        fileEntity.setUpdateTime(new Date());
        fileEntity.setType(TypeCode.FILE_TYPE_VECTOR);
        fileEntity.setCoord(entity.getCoord());
        fileEntity = fileServer.save(fileEntity);

        // xxx.shp到数据库
//        String sName = StringUtils.substringAfter(fileName, "_");
//        sName = sName + ".shp";
        fileEntity = new FileEntity();
//        fileEntity.setFileName(sName);
//        fileEntity.setFileUrl(INPUT_FILE_PATH + fileName + File.separator + sName);

        fileEntity.setFileName(fileName + ".shp");
        fileEntity.setFileUrl(shpPath);

        fileEntity.setCreateTime(new Date());
        fileEntity.setUpdateTime(new Date());
        fileEntity.setType(TypeCode.FILE_TYPE_VECTOR);
        fileEntity.setCoord(entity.getCoord());
        fileEntity = fileServer.save(fileEntity);

        return new R(200, fileEntity);
    }


//    @ApiOperation("test")
//    @PostMapping(value = "test/{directoryName}/", consumes = { "multipart/form-data" })
//    private R test(@RequestParam("file") MultipartFile file, @PathVariable("directoryName") String directoryName, @RequestParam(value = "str",required = false) String str){
//        log.info("run upload");
//        log.info("directoryName: {}", directoryName);
//        log.info("str: {}", str);
//        return new R(200, "123");
//    }



    @ApiOperation("获取矢量数据列表")
    @PostMapping(value = "list")
    private R list(@RequestBody PageDto param){
        log.info("run list");
//        return fileServer.findByType(TypeCode.FILE_TYPE_VECTOR, TypeCode.FILE_TYPE_VECTOR_SHP, param);
        return fileServer.findByType(TypeCode.FILE_TYPE_VECTOR, param);
    }

    /**
     * 删除文件
     */
    @ApiOperation("删除文件")
    @GetMapping("delete/{fileId}/")
    private R deleteFile(@PathVariable("fileId") Long fileId) {
        log.info("run deleteFile: {}", fileId);
        return fileServer.deleteById(fileId);
    }





//    @ApiOperation("矢量数据判断坐标")
//    @GetMapping("command/judge/coord/{fileId}/")
//    private R cmdJudgeCoord(@PathVariable("fileId") Long fileId) {
//        log.info("run cmdJudgeCoord: {}", fileId);
//        FileEntity entity = fileServer.findById(fileId);
//
//        String cmd = Command.VECTOR_JUDGE_COORD;
//        cmd = cmd.replace("@inputFile", entity.getFileUrl());
//        log.info("cmd: {}", cmd);
//
//        boolean isJudge = cmdServer.exeCmdJudgeCoord(cmd);
//
//        if (isJudge){
//            log.info("need to transform");
//        } else {
//            log.info("not to transform");
//        }
//
//
//        return new R(200, isJudge);
//    }


    @ApiOperation("矢量数据判断坐标")
    @GetMapping("command/judge/coord/{fileId}/")
    private R cmdJudgeCoord(@PathVariable("fileId") Long fileId) {
        log.info("run cmdJudgeCoord: {}", fileId);
        FileEntity entity = fileServer.findById(fileId);
        String coord = entity.getCoord();
        log.info("coord: {}", coord);

        // 判断是否需要坐标转换
        String cmd = Command.VECTOR_JUDGE_COORD;
        cmd = cmd.replace("@inputFile", entity.getFileUrl());
        log.info("cmd: {}", cmd);

        Integer isJudge = cmdServer.exeCmdJudgeCoord(cmd);

        FileEntity fileEntity = null;
        // 转换坐标 普通坐标转换
        if (isJudge == 1000){
            // 普通坐标转换
            log.info("need to general transform");
            if (coord == null) {
                // 没有坐标参数，执行普通坐标转换（ogrinfo)
                fileEntity = generalCoordTransform(entity, Command.VECTOR_TRANSFORM_GENERAL);

            } else {
                // 有坐标参数，执行严格坐标转换（CGCS2000转wgs80)
                fileEntity = strictCoordTransform(entity, Command.VECTOR_TRANSFORM_STRICT_WGS80);
            }

        } else if (isJudge == 1001) {
            // 严格坐标转换 （西安80转wgs84），需要参数
            log.info("need to strict transform");
            if (coord == null) {
                log.info("error： {}", MsgCode.E50009);
                return new R(50009, MsgCode.E50009);
            }
            fileEntity = strictCoordTransform(entity, Command.VECTOR_TRANSFORM_STRICT_WGS84);

        } else if (0 == isJudge){ // 不转换坐标
            log.info("not to transform");
            fileEntity = entity;
        } else {
            log.info("error exeCmd");
            return new R(50005, MsgCode.E50005);
        }


        return new R(200, fileEntity);
    }

    @ApiOperation("矢量数据转geojson")
    @GetMapping("command/geojson/{fileId}/")
    private R cmdGeojson(@PathVariable("fileId") Long fileId) {
        log.info("run cmdGeojson: {}", fileId);
        FileEntity entity = fileServer.findById(fileId);

        String fileName = StringUtils.substringBefore(entity.getFileName(), ".");
        // 截取目录名称
        String fileUrl = entity.getFileUrl();
        String outputFile = StringUtils.substringBefore(fileUrl, ".");
        outputFile = outputFile + ".json";

        String cmd = Command.VECTOR_TO_GEOJSON;
        cmd = cmd.replace("@inputFile", fileUrl);
        cmd = cmd.replace("@outputFile", outputFile);
        log.info("cmd: {}", cmd);


        Integer integer = cmdServer.exeCmdInt(cmd);
        if (integer != 0) {
            return new R(50005, MsgCode.E50005);
        }

        FileEntity fileEntity = new FileEntity();
        fileEntity.setFileName(fileName + ".json");
        fileEntity.setFileUrl(outputFile);
        fileEntity.setCreateTime(new Date());
        fileEntity.setUpdateTime(new Date());
        fileEntity.setType(TypeCode.FILE_TYPE_VECTOR);
        fileEntity = fileServer.save(fileEntity);

        return new R(200, fileEntity);
    }


    @ApiOperation("矢量数据切片")
    @GetMapping("command/slice/{fileId}/")
    private R cmdSlice (@PathVariable("fileId") Long fileId) {
        log.info("run cmdSlice: {}", fileId);
        FileEntity entity = fileServer.findById(fileId);

        String fileName = StringUtils.substringBefore(entity.getFileName(), ".");
        String outputFile = OUTPUT_FILE_PATH + fileName + ".mbtiles";

        String cmd = Command.VECTOR_SLICE_TIPPECANOE;
        cmd = cmd.replace("@inputFile", entity.getFileUrl());
        cmd = cmd.replace("@outputFile", outputFile);
        log.info("cmd: {}", cmd);


        Integer integer = cmdServer.exeCmdInt(cmd);
        if (integer != 0) {
            return new R(50005, MsgCode.E50005);
        }

        FileEntity fileEntity = new FileEntity();
        fileEntity.setFileName(fileName + ".mbtiles");
        fileEntity.setFileUrl(outputFile);
        fileEntity.setCreateTime(new Date());
        fileEntity.setUpdateTime(new Date());
        fileEntity.setType(TypeCode.FILE_TYPE_VECTOR);
        fileEntity = fileServer.save(fileEntity);

        return new R(200, fileEntity);
    }


    // 普通坐标转换
    private FileEntity generalCoordTransform(FileEntity entity, String cmd){

        String directory = createDirectory(entity);
        directory = directory + File.separator + entity.getFileName();

        cmd = cmd.replace("@inputFile", entity.getFileUrl());
        cmd = cmd.replace("@outputFile", directory);
        log.info("cmd: {}", cmd);
        return  runCmd(cmd, entity, directory);
    }



    // 严格坐标转换
    private FileEntity strictCoordTransform(FileEntity entity, String cmd){

        String directory = createDirectory(entity);
        directory = directory + File.separator + entity.getFileName();

        cmd = cmd.replace("@coord", entity.getCoord());
        cmd = cmd.replace("@inputFile", entity.getFileUrl());
        cmd = cmd.replace("@outputFile", directory);
        log.info("cmd: {}", cmd);

        return  runCmd(cmd, entity, directory);
    }

    // 创建目录
    private String createDirectory(FileEntity entity){
        String fileName = StringUtils.substringBeforeLast(entity.getFileName(), ".");
        String directory = INPUT_FILE_PATH + "transform" + File.separator + fileName;
        FileUtils.createDir(directory);
        return directory;
    }

    // 执行命令，创建对象
    private FileEntity runCmd(String cmd, FileEntity entity, String filePath){
        Integer integer = cmdServer.exeCmdInt(cmd);
        if (integer != 0) {
            return null;
        }

        FileEntity fileEntity = new FileEntity();
        fileEntity.setFileName(entity.getFileName());
        fileEntity.setFileUrl(filePath);
        fileEntity.setCreateTime(new Date());
        fileEntity.setUpdateTime(new Date());
        fileEntity.setType(TypeCode.FILE_TYPE_VECTOR);
        fileEntity = fileServer.save(fileEntity);
        return fileEntity;

    }

}