const npmCheck = require('npm-check')
const compareVersions = require('compare-versions');
const exec = require('child_process').exec;

npmCheck()
  .then(currentState => {
    packages = currentState.get('packages')
    packages.forEach(p => {
      const { moduleName, latest, installed } = p
      if (moduleName === 'expo' && compareVersions(latest, installed) >= 1) {
        console.log('\x1b[31m', `Latest version of expo is ${latest}, but you are running ${installed}. Please run: expo upgrade`, '\x1b[0m')
      }
    })
  })
  .then(() => new Promise((resolve) => {
    exec('node -v', (err, nodeVersion, stdErr) => {
      nodeVersion = nodeVersion.trim().substring(1)
      const supportedNode = '14.17.0'
      if (compareVersions(supportedNode, nodeVersion) >= 1) {
        console.log('\x1b[31m', `You should have node version ${supportedNode} or later. Please download the latest version`, '\x1b[0m')
        process.exit(1)
      }
      resolve()
    })
  }))
  .then(() => new Promise((resolve) => {
    exec('npm -v', (err, npmVersion, stdErr) => {
      npmVersion = npmVersion.trim()
      const supportedNpm = '7.16.0'
      if (compareVersions(supportedNpm, npmVersion) >= 1) {
        console.log('\x1b[31m', `You should have npm version ${supportedNpm} or later. Please run: npm install -g npm@latest`, '\x1b[0m')
        process.exit(1)
      }
      resolve()
    })
  }))
  .then(() => new Promise((resolve) => {
    exec('expo-cli --version', (err, expoCliVersion, stdErr) => {
      const supportedExpoCli = '4.5.2'
      expoCliVersion = expoCliVersion.trim()
      if (err || compareVersions(supportedExpoCli, expoCliVersion) >= 1) {
        console.log('\x1b[31m', `You should have globally installed expo-cli version ${supportedExpoCli} or later. Please run: npm i -g expo-cli@latest`, '\x1b[0m')
        process.exit(1)
      }
      resolve()
    })
  }))