module.exports = (api, options) => {
  api.render('./templateExampleApp')
  if(options.createVueConfigJs.toLowerCase() === 'y') {
    api.render('./template')
  }

  api.extendPackage({
    dependencies: {
        '@vue/composition-api': '^0.5.0'
    },
    devDependencies: {
        "purs-loader": "^3.7.1"
    }
  })

  api.injectImports(api.entryFile, `import VueCompositionApi from '@vue/composition-api'`)

  module.exports.hooks = (api) => {
    api.afterInvoke(() => {
      const { EOL } = require('os')
      const fs = require('fs')
      const contentMain = fs.readFileSync(api.resolve(api.entryFile), { encoding: 'utf-8' })
      const lines = contentMain.split(/\r?\n/g).reverse()

      if (lines.findIndex(line => line.match(/Vue\.use.*VueCompositionApi.*/)) !== -1) return

      const renderIndex = lines.findIndex(line => line.match(/import/))
      lines[renderIndex-1] += `${EOL}Vue.use(VueCompositionApi);${EOL}`
      lines.reverse()

      fs.writeFileSync(api.entryFile, lines.join(EOL), { encoding: 'utf-8' })
    })
  }
}