const { spawn } = require('child_process')
const readline = require('readline')

class DevelopClientScript {
 constructor() {
 if (DevelopClientScript.instance) {
 return DevelopClientScript.instance
 }
 DevelopClientScript.instance = this
 }

 promptUser(question) {
 return new Promise((resolve) => {
 const rl = readline.createInterface({
 input: process.stdin,
 output: process.stdout
 })
 rl.question(question, (res) => {
 resolve(res)
 rl.close()
 })
 })
 }

 async runClient() {
 console.error('请选择你需要运行的客户端(回复数字后回车)')
 console.error('0.取消')
 console.error('1.微信小程序')
 console.error('2.公众号或者H5')
 const runClientRes = await this.promptUser('请输入运行的客户端:')
 switch (runClientRes) {
 case '0':
 break
 case '1':
 await this.runNpmScript('dev:mp-weixin')
 break
 case '2':
 await this.runNpmScript('dev:h5')
 break
 default:
 await this.runClient()
 break
 }
 }

 runNpmScript(scriptName) {
 return new Promise((resolve, reject) => {
 const isWindows = process.platform === 'win32'
 const command = isWindows ? 'cmd.exe' : 'npm'
 const args = isWindows
 ? ['/c', 'npm', 'run', scriptName]
 : ['run', scriptName]

 const runProcess = spawn(command, args)

 runProcess.stdout.on('data', (data) => {
 console.log(data.toString())
 })

 runProcess.stderr.on('data', (data) => {
 console.error(data.toString())
 })

 runProcess.on('close', (code) => {
 if (code !== 0) {
 reject(
 new Error(
 `运行错误,请查看以下报错信息寻找解决方法: ${error.message}`
 )
 )
 } else {
 resolve()
 }
 })
 })
 }

 async run(targetVersion) {
 const currentVersion = process.versions.node

 if (currentVersion < targetVersion) {
 throw new Error(
 `你的当前node版本为(${currentVersion}),需要安装目标版本为 ${targetVersion} 以上!!`
 )
 }

 await this.runClient()
 }

 static getInstance() {
 if (!DevelopClientScript.instance) {
 DevelopClientScript.instance = new DevelopClientScript()
 }
 return DevelopClientScript.instance
 }
}

;(async () => {
 const develop = DevelopClientScript.getInstance()
 try {
 await develop.run('16.16.0')
 } catch (error) {
 console.error(error.message)
 }
})()