package com.educoder.bridge.controller;

import com.alibaba.fastjson.JSONObject;
import com.educoder.bridge.service.DockerService;
import com.educoder.bridge.utils.ClientUtil;
import com.spotify.docker.client.DockerClient;
import com.spotify.docker.client.exceptions.DockerException;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;


@Api(value = "镜像管理", hidden = true)
@RestController
@RequestMapping("/docker")
public class DockerController {
    @Autowired
    private DockerService dockerService;

    private Logger logger = LoggerFactory.getLogger(DockerController.class);

    @RequestMapping(path = "/images")
    @ApiOperation(value = "获取全部实训镜像", httpMethod = "GET")
    public JSONObject getImages() throws DockerException, InterruptedException {
        logger.info("收到获取镜像请求");

        JSONObject result = new JSONObject();
        // 获取主节点全部镜像
        DockerClient docker = ClientUtil.getDocker();
        List<String> imageList = dockerService.getImageList(docker);
        result.put("images", imageList);

        // 获取未同步的镜像
        List<DockerClient> dockerDeputies = ClientUtil.getDockerDeputies();
        List<String> imageDiff = dockerService.imageDiff(imageList, dockerDeputies);
        result.put("imagesNotSync", imageDiff);

        result.put("code", 0);
        return result;
    }

    @RequestMapping(path = "/syncImage")
    @ApiOperation(value = "同步镜像", httpMethod = "POST", produces = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public JSONObject syncImage(
            @ApiParam(name = "imageName", required = true, value = "镜像名") @RequestParam String imageName)
            throws DockerException, InterruptedException {
        logger.info("imageName: {}", imageName);

        JSONObject result = new JSONObject();

        DockerClient dockerMaster = ClientUtil.getDocker();
        List<DockerClient> dockerDeputies = ClientUtil.getDockerDeputies();

        dockerService.syncImage(dockerMaster, dockerDeputies, imageName);

        result.put("code", 0);
        return result;

    }

    @RequestMapping(path = "/updateImage")
    @ApiOperation(value = "镜像有更新", httpMethod = "POST", produces = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    public JSONObject updateImage(
            @ApiParam(name = "imageName", required = true, value = "镜像名") @RequestParam String imageName,
            @ApiParam(name = "imageID", required = true, value = "旧的镜像ID") @RequestParam String imageID,
            @ApiParam(name = "flag", required = true, value = "更新行为选择，0更新 1回退") @RequestParam Integer flag)
            throws DockerException, InterruptedException {
        logger.info("imageName: {}, imageID: {}, flag: {}", imageName, imageID, flag);

        JSONObject result = new JSONObject();

        DockerClient dockerMaster = ClientUtil.getDocker();
        List<DockerClient> dockerDeputies = ClientUtil.getDockerDeputies();

        if (flag == 0) {
            // 选择更新
            dockerService.syncImage(dockerMaster, dockerDeputies, imageName);
        } else {
            // 选择回退
            dockerService.resetImage(dockerMaster, imageID, imageName);
        }

        result.put("code", 0);
        return result;
    }

}