#!/usr/bin/env node

const cmd   = require('./build/cmd')
const fs    = require('fs').promises
const fss   = require('fs')
const paths = require('./build/paths')

process.on('unhandledRejection', error => { throw(error) })

let args = process.argv.slice(2)

let skip_validation = '--skip-version-validation'
async function init () {
    if(!args.includes(skip_validation)) {
        cmd.section('Version Validation')
        console.log("Use the `" + skip_validation + "` flag to skip it.")
        console.log("Querying npm for the latest LTS versions.")
        let [node_lts_version,npm_lts_version] = await cmd.get_node_lts_version()
        console.log("Checking versions of installed packages.")
        await cmd.check_version('node',node_lts_version)
        await cmd.check_version('npm',npm_lts_version)
        await cmd.check_version('rustc','1.40.0-nightly',{
            preprocess:(v)=>v.substring(6,20)
        })
    }

    let initialized = fss.existsSync(paths.dist.buildInit)
    if (!initialized) {
        cmd.section('Initialization')
        console.log('Installing build script dependencies.')
        await cmd.with_cwd('build', async () => {
            await cmd.run('npm',['install'])
        })
        await fs.mkdir(paths.dist.root, {recursive:true})
        await fs.open(paths.dist.buildInit,'w')
    }
}

async function main() {
    await init()
    cmd.run('node',[paths.script.run].concat(args))
}

main()