package com.fd.controller;

import com.fd.constant.Command;
import com.fd.constant.MsgCode;
import com.fd.constant.TypeCode;
import com.fd.dto.ConfigJsonDto;
import com.fd.dto.MyQueue;
import com.fd.dto.PageDto;
import com.fd.entity.FileEntity;
import com.fd.entity.OutputFileEntity;
import com.fd.server.CmdServer;
import com.fd.server.RasterServer;
import com.fd.util.FileUtils;
import com.fd.util.R;
import com.fd.util.RegexUtils;
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 javax.annotation.PostConstruct;
import java.io.File;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;

/**
 * Created by Owen on 2019/11/12 0012 9:40
 *
 * 栅格数据
 */
@Log4j2
@RequestMapping("api/raster")
@RestController
public class RasterController {

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

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

    @Autowired
    private CmdServer cmdServer;

    @Autowired
    private RasterServer rasterServer;

    BlockingQueue<MyQueue> sliceQueue = new LinkedBlockingQueue<MyQueue>(5);

    BlockingQueue<MyQueue> coordQueue = new LinkedBlockingQueue<MyQueue>(5);


    /**
     * 初始化队列
     *
     * @return
     */
    @PostConstruct
    private void init() {

        // 判断坐标消费队列
        new Thread(new JudgeCoordConsumerThread(coordQueue)).start();

        // 切片消费队列
        new Thread(new SliceConsumerThread(sliceQueue)).start();

    }

    @ApiOperation("上传数据，校验文件名")
    @GetMapping("check/{fileName}/")
    private R checkFileName(@PathVariable("fileName") String fileName) {
        log.info("run checkFileName: {}",fileName);


        // 文件是否包含中文字符
        if (RegexUtils.regexChinese(fileName)) {
            return new R(51005, MsgCode.E51005);
        }

        String s = StringUtils.substringAfterLast(fileName, ".");
        if (!"tif".equals(s)) {
            return new R(50008,MsgCode.E50008);
        }

        List<FileEntity> list = rasterServer.findByFileName(fileName);
        if (list.size() > 0) {
            return new R(51006, MsgCode.E51006);
        }
        return new R(200, MsgCode.SUCCESS);
    }

    @ApiOperation("上传栅格数据，只能上传tif文件")
    @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");
        log.info("coord: {}", Arrays.toString(coord));
        String strCoord = Arrays.toString(coord);

        // 文件名全名
        String fileName = file.getOriginalFilename();

        // 文件是否包含中文字符
        if (RegexUtils.regexChinese(fileName)) {
            return new R(51005, MsgCode.E51005);
        }

        String s = StringUtils.substringAfterLast(fileName, ".");
        if (!"tif".equals(s)) {
            return new R(50008,MsgCode.E50008);
        }

        List<FileEntity> list = rasterServer.findByFileName(fileName);
        if (list.size() > 0) {
            return new R(51006, MsgCode.E51006);
        }


        R r = rasterServer.uploadBigFile(file, strCoord);

        OutputFileEntity entity = (OutputFileEntity) r.getData();

        // 判断坐标
        entity = JudgeCoord(entity);

        return new R(200, entity);

    }

    /**
     * 上传后判断坐标，显示原始坐标
     * @return
     */
    private OutputFileEntity JudgeCoord(OutputFileEntity entity){

        String cmd = Command.RASTER_JUDGE_COORD;
        cmd = cmd.replace("@inputFile", entity.getUploadPath());
        log.info("cmd: {}", cmd);

        Integer isJudge = cmdServer.exeCmdRasterJudgeCoord(cmd);


        if (1000 == isJudge){
            log.info("need to transform");
            // 严格坐标转换
            entity.setCoordType(TypeCode.COORD_XIAN_1980);

        } else if (0 == isJudge){
            log.info("not to transform");
            entity.setCoordType(TypeCode.COORD_WGS84);

        } else {
            log.info("error exeCmd");
            entity.setStatus(7);

        }

        entity.setUpdateTime(new Date());
        rasterServer.save(entity);
        return entity;
    }

    @ApiOperation("获取栅格数据列表")
    @PostMapping(value = "list")
    private R list(@RequestBody PageDto param){
        return rasterServer.findByType(TypeCode.FILE_TYPE_RASTER, 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 rasterServer.deleteById(fileId);
    }

    @ApiOperation("栅格数据判断坐标")
    @GetMapping("command/judge/coord/{fileId}/")
    private R cmdJudgeCoord(@PathVariable("fileId") Long fileId) {
        log.info("run cmdJudgeCoord: {}", fileId);

        OutputFileEntity entity = rasterServer.findById(fileId);
        entity.setStatus(9);
        entity.setUpdateTime(new Date());
        entity = rasterServer.save(entity);

        String cmd = Command.RASTER_JUDGE_COORD;
        cmd = cmd.replace("@inputFile", entity.getUploadPath());
        log.info("cmd: {}", cmd);

        // 把数据放入队列中
        MyQueue data = new MyQueue();
        data.setOutputFile(entity);
        data.setStr(cmd);
        try {
            coordQueue.offer(data, 1, TimeUnit.SECONDS);
            log.info("入队成功");
        } catch (Exception e) {

            log.error("error  producer queue raster cmdJudgeCoord： {}", e);

            e.printStackTrace();
        }

        return new R(200, entity);
    }


    /**
     * 坐标转换消费队列
     */
    public class JudgeCoordConsumerThread implements Runnable{

        private BlockingQueue<MyQueue> queue;

        private boolean isRun = true;
        public JudgeCoordConsumerThread(BlockingQueue<MyQueue> queue){
            this.queue = queue;
        }

        @Override
        public void run() {
            log.warn("run JudgeCoordConsumerThread");
            while (true) {
                OutputFileEntity  entity = null;
                try {
                    MyQueue data = queue.poll(2, TimeUnit.SECONDS);
                    if (data != null) {
                        log.info("消费者,拿到队列中的数据data:" + data.toString());

                        Integer isJudge = cmdServer.exeCmdRasterJudgeCoord(data.getStr());
                        entity = data.getOutputFile();

                        if (1000 == isJudge){
                            log.info("need to transform");
                            // 严格坐标转换
                            entity = cmdTansformGdalwarpStrict(entity);
                        } else if (0 == isJudge){
                            log.info("not to transform");
                            // 4:未切片
                            entity.setStatus(4);
                            // 不需要转，就把上传文件路径复制到严格坐标路径上
                            entity.setCoordStrictPath(entity.getUploadPath());
                            entity.setUpdateTime(new Date());
                            rasterServer.save(entity);
                        } else {
                            log.info("error exeCmd");
                            entity.setStatus(0);
                            entity.setUpdateTime(new Date());
                            rasterServer.save(entity);
                        }

                    }
                } catch (Exception e) {


                    log.error("error  consume queue raster JudgeCoordConsumerThread： {}", e);
                    e.printStackTrace();
                }
            }
        }
    }

    @ApiOperation("栅格数据切片命令")
    @GetMapping("command/osgeo/{fileId}/{layerMin}/{layerMax}/")
    private R cmdSlice(@PathVariable("fileId") Long fileId, @PathVariable("layerMin") String layerMin, @PathVariable("layerMax") String layerMax) {
        log.info("run cmdSlice: {}", fileId);

        if (!RegexUtils.regexInt(layerMin)){
            return new R(50010, MsgCode.E50010) ;
        }
        if (!RegexUtils.regexInt(layerMax)){
            return new R(50010, MsgCode.E50010) ;
        }


        OutputFileEntity entity = rasterServer.findById(fileId);

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

        String outFilePath = OUTPUT_FILE_PATH + "slice" + File.separator + fileName;
        FileUtils.createDir(outFilePath);


        String cmd = Command.RASTER_SLICE_OSGEO;
        cmd = cmd.replace("@inputFile", entity.getCoordStrictPath());
        cmd = cmd.replace("@outputFile", outFilePath);
        cmd = cmd.replace("@layerMin", layerMin);
        cmd = cmd.replace("@layerMax", layerMax);
        log.info("cmd: {}", cmd);


        // 设个默认进度给前端显示
        entity.setProgress(1);
        entity.setStatus(6);
        entity.setLayerMin(Integer.valueOf(layerMin));
        entity.setLayerMax(Integer.valueOf(layerMax));
        entity.setUpdateTime(new Date());
        entity.setSlicePath(outFilePath);

        entity = rasterServer.save(entity);


        // 把数据放入队列中
        MyQueue data = new MyQueue();
        data.setOutputFile(entity);
        data.setStr(cmd);
        try {
            sliceQueue.offer(data, 1, TimeUnit.SECONDS);
            log.info("入队成功");
        } catch (Exception e) {
            log.error("error  producer queue raster cmdSlice： {}", e);
            e.printStackTrace();
        }

        return new R(200, entity) ;
    }


    /**
     * 切片消费队列
     */
    public class SliceConsumerThread implements Runnable{

        private BlockingQueue<MyQueue> queue;
        private boolean isRun = true;
        public SliceConsumerThread(BlockingQueue<MyQueue> queue){
            this.queue = queue;
        }

        @Override
        public void run() {
            log.warn("run SliceConsumerThread");
            while (isRun) {
                OutputFileEntity  entity = null;
                try {
                    MyQueue data = queue.poll(2, TimeUnit.SECONDS);
                    if (data != null) {
                        log.info("消费者,拿到队列中的数据data:" + data.toString());

                        entity = data.getOutputFile();

                        Integer integer = cmdServer.exeCmdRasterSlice(data.getStr(), entity);
                        if (integer != 0) {
                            log.info("error command exeCmdRasterSlice");
                            // 如果命令运行失败，状态改为0
                            entity.setStatus(0);
                            entity.setUpdateTime(new Date());
                            rasterServer.save(entity);
                            return;
                        }
                        // 切片完成，修改完成状态
                        entity.setStatus(5);
                        entity.setUpdateTime(new Date());
                        entity = rasterServer.save(entity);
                        log.info("entity： {}", entity.toString());
                    }

                } catch (Exception e) {

                    log.error("error  consume queue raster SliceConsumerThread： {}", e);
                    e.printStackTrace();
                }
            }
        }
    }


    @ApiOperation("栅格数据进度查询")
    @GetMapping("progress/{fileId}/")
    private R getProgress(@PathVariable("fileId") Long fileId) {
//        log.info("run getProgress: {}", fileId);
        OutputFileEntity entity = rasterServer.findById(fileId);
        return new R(200, entity);
    }


    @ApiOperation("移动数据到服务器上")
    @PostMapping("move/{fileId}/")
    private R moveFile(@PathVariable("fileId") Long fileId, @RequestBody ConfigJsonDto param) {
        log.info("run moveFile: {}", fileId);
        return rasterServer.moveFileToServer(fileId, param);
    }



    /**
     * 严格坐标转换
     */
    private OutputFileEntity cmdTansformGdalwarpStrict(OutputFileEntity entity){
        log.info("run cmdTansformGdalwarpStrict");

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

        String outFileStep1 = OUTPUT_FILE_PATH + "transform";
        FileUtils.createDir(outFileStep1);
        outFileStep1 = outFileStep1 + File.separator + entity.getFileName();

        // 坐标处理
        String coord = entity.getCoord();

        String step_1 = Command.RASTER_TRANSFORM_GDALWARP_STRICT_1;
        String step_2 = Command.RASTER_TRANSFORM_GDALWARP_STRICT_2;
        step_1 = step_1.replace("@inputFile", entity.getUploadPath());
        step_1 = step_1.replace("@outputFile", outFileStep1);

        String outFileStep2 = OUTPUT_FILE_PATH + "transform_strict";
        FileUtils.createDir(outFileStep2);
        outFileStep2 = outFileStep2 + File.separator + entity.getFileName();

        step_2 = step_2.replace("@inputFile", outFileStep1);
        step_2 = step_2.replace("@outputFile", outFileStep2);
        log.info("cmd1: {}", step_1);
        log.info("cmd2: {}", step_2);

        Integer integer = cmdServer.exeCmd(step_1, step_2);

        if (integer != 0) {
            log.info("error command transform");
            return null;
        }

        entity.setStatus(4);
        entity.setUpdateTime(new Date());
        entity.setCoordGeneralPath(outFileStep1);
        entity.setCoordStrictPath(outFileStep2);

        entity = rasterServer.save(entity);

        return entity;
    }




    public static void main(String[] args) {
        String [] a = {"1.1","1.2","1.3"};
        List<String> list = Arrays.asList(a);
        System.out.println(list.get(1));
    }

}