const { exec } = require('child_process')
const fs = require('fs')

const source = process.argv[2] || 'inheritance'

fs.readFile(`./structures/${source.toLowerCase()}/index.js`, 'utf8', (err, data) => {
    if (err) throw new Error(`could not find deployment source file 'index.js': ${err.message}`)

    fs.writeFile("./functions/index.js", data, (err) => {
        if (err) throw new Error(`could not create functions deployment source: ${err.message}`)
        else if (process.argv[3] !== 'deploy') return

        exec('firebase deploy --only functions', (err, stdout, stderr) => {
            if (err) throw new Error(`could not execute deploy command: ${err.message}`)

            console.log(`${stdout}`)
        })
    })
})