#!/usr/bin/env node

/**
 * docker cli工具
 * 例如：
 *  - ./scripts/docker container xxx    容器相关
 *  - ./scripts/network image    xxx    镜像相关
 *  - ./scripts/docker network   xxx    网络相关
 */
const { execShell, BaseSetting} = require("./.exec");
const scriptName=process.argv[2];


/**
 * 网络基础信息
 * - 网络名称
 * - 子网掩码
 * - 网关地址
 */
const dockerNetworkInfo={
  defaultName:'service_env_net',
  subnet:'172.30.0.0/24',
  gateway:'172.30.0.1',
}

/**
 * docker containers 容器相关指令
 */
const SupportScriptsInContainer={
  run:'',
  rm:'',
  ps:'docker ps'
}

/**
 * docker images 相关脚本指令
 */
const SupportScriptsInImage = {
  rm: 'docker rmi **',
  ps: 'docker images'
}

/**
 * docker network 相关脚本指令
 */
const SupportScriptsInNetWork={
  ls:'docker network ls',
  create:[
    // 创建网关
    `
      docker network create \
      --subnet=${dockerNetworkInfo.subnet} \
      --gateway=${dockerNetworkInfo.gateway} \
      ${dockerNetworkInfo.defaultName}
    `,
    // 查看创建后基本信息
    `
      docker network inspect ${dockerNetworkInfo.defaultName}
    `
  ],
  rm:[
    // 参数校验
    `
      if test -z "${dockerNetworkInfo.defaultName}";then 
        echo "参数错误 网络名称不能为空。脚本执行eg： bash xxx.sh rm  网络名称" 
        exit 1;
      fi
    `,
    // 判断网络是否存在
    `
      docker network ls | grep -w "${dockerNetworkInfo.defaultName}"
      if [ $? -eq 1 ] ;then
          echo "容器网络:${dockerNetworkInfo.defaultName} 不存在，删除无效"
        exit 1;
      fi
    `,
    // 删除网络
    `
      docker network rm "${dockerNetworkInfo.defaultName}"
    `
  ],
  inspect:
      `
      docker network inspect ${dockerNetworkInfo.defaultName}
    `
}



function getContainerCommand(){
  const name=process.argv[3];

  if(SupportScriptsInContainer.hasOwnProperty(name)){
    return SupportScriptsInContainer[name]
  }
  // 默认查看所有容器
  return SupportScriptsInContainer.ps
}

function getImageCommand(){
  const name=process.argv[3];

  if(SupportScriptsInImage.hasOwnProperty(name)){
    return SupportScriptsInImage[name]
  }
  return SupportScriptsInImage.ps
}



function getNetworkCommand(){
  const name=process.argv[3];
  if(SupportScriptsInNetWork.hasOwnProperty(name)){
    return SupportScriptsInNetWork[scriptName]
  }
  return SupportScriptsInNetWork.ls
}





// 支持的命令
const SupportScripts={
  ls:'docker network ls',
  create:[
    // 创建网关
    `
      docker network create \
      --subnet=${dockerNetworkInfo.subnet} \
      --gateway=${dockerNetworkInfo.gateway} \
      ${dockerNetworkInfo.defaultName}
    `,
    // 查看创建后基本信息
    `
      docker network inspect ${dockerNetworkInfo.defaultName}
    `
  ],
  rm:[
    // 参数校验
    `
      if test -z "${dockerNetworkInfo.defaultName}";then 
        echo "参数错误 网络名称不能为空。脚本执行eg： bash xxx.sh rm  网络名称" 
        exit 1;
      fi
    `,
    // 判断网络是否存在
    `
      docker network ls | grep -w "${dockerNetworkInfo.defaultName}"
      if [ $? -eq 1 ] ;then
          echo "容器网络:${dockerNetworkInfo.defaultName} 不存在，删除无效"
        exit 1;
      fi
    `,
    // 删除网络
    `
      docker network rm "${dockerNetworkInfo.defaultName}"
    `
  ],
  inspect:
    `
      docker network inspect ${dockerNetworkInfo.defaultName}
    `
}

function getCommand(){
  const scriptName=process.argv[3];
  switch (scriptName){
    case 'network':
      return getNetworkCommand()
    case 'container':
      return getContainerCommand()
    case 'image':
      return getImageCommand()
  }

}


// 执行
;(async ()=>{
  const command=getCommand(scriptName)
  await execShell(command)
})()