const helpers = require('./helpers');
const ora = require('ora');
const argv = require('yargs').argv;
const colors = require('colors/safe');
const fs = require('fs');
const config = require('./config');
const path = require('path');

(async function() {
	const spinner = ora('Fetching mod info...').start()

	if ( argv.info ) {
		const mod = await helpers.fetch_mod(argv.info)
		spinner.stop()
		mod.print_info()
	} else if ( argv.list ) {
		if ( !argv.minecraft ) {
			spinner.stop()
			helpers.error_out('Please specify a target version using the --minecraft argument.')
		}
		const mod = await helpers.fetch_mod(argv.list)
		spinner.stop()

		let print = mod.version_info(argv.minecraft).sort((a, b) => a.id - b.id).reverse()
		if ( argv.type ) print = print.filter(x => x.type === argv.type)
		let truncated = false
		if ( !print ) helpers.error_out(`No supported versions found for Minecraft ${argv.minecraft}.`)
		if ( !argv.all && print.length > 15 ) {
			print = print.slice(0, 15)
			truncated = true
		}

		mod.print_header()
		console.log(`  ${colors.green('Mod versions for Minecraft '+argv.minecraft+':')}`)
		for ( const item of print ) {
			console.log(`    ${colors.cyan(item.id)}  ${colors.blue('('+item.type+')')}\t${colors.yellow(new Date(item.uploaded_at).toLocaleString())}\t\t${item.name}`)
		}
	} else if ( argv.install ) {
		if ( !argv.minecraft && !argv.mod_version ) {
			spinner.stop()
			helpers.error_out('Please specify a Minecraft version target OR mod version id using the --minecraft and --mod_version arguments.')
		}

		const installs = argv.install.split(',').map(x => x.trim())
		for ( const install of installs ) {
			await helpers.install_mod({ install, argv, spinner })
		}
	} else if ( argv.archive ) {
		spinner.text = 'Archiving mod repository...';
		(new Promise((res, rej) => {
			require('child_process').exec(`cd ${config.repo} && cd .. && zip -r archive.zip ./${path.basename(config.repo)}`, (err, stout, sterr) => {
				if ( err ) rej(err)
				else res()
			})
		})).then(() => {
			spinner.stop()
			console.log(`Repository archived: ${path.dirname(config.repo)}/archive.zip`)
		}).catch(e => {
			spinner.stop()
			helpers.error_out('An error occurred while archiving the repository: '+e)
		})
	} else if ( argv.show ) {
		const printVersions = (name, filenames) => {
			console.log(`  ${colors.green(name)}`)
			filenames.map(x => x.replace('.zip', '').replace(`${name}-`, '')).forEach(x => {
				console.log(`    ${colors.blue(x)}`)
			})
		}
		spinner.stop()
		if ( argv.show === true ) {
			const mods = helpers.list_installed_mods()
			for ( const mod of mods ) {
				printVersions(mod, helpers.list_mod_versions(mod))
			}
		} else if ( argv.show ) {
			const versions = helpers.list_mod_versions(argv.show)
			printVersions(argv.show, versions)
		}
	} else {
		spinner.stop()
		console.log(colors.blue(`MCM-CLI is an ad-hoc helper script for programmatically maintaining TechnicSolder repos.`))
		console.log(`USAGE: node index.js [...OPTIONS]`)
		console.log('')
		console.log(`  --info [mod]`)
		console.log(`      Display information about a mod by CLI name.\n`)
		console.log(`  --list [mod] --minecraft [version]`)
		console.log(`      List mod versions for the specified Minecraft version target.\n`)
		console.log(`  --install [mod] (--minecraft [version] | --mod_version [version id]`)
		console.log(`      Download an install the specified mod at either the latest version for the specified`)
		console.log(`       Minecraft target, or at the specified version ID.\n`)
		console.log(`  --archive`)
		console.log(`      Create a ZIP archive of the mod repository.\n`)
		console.log(`\nMake sure to update the "repo" and "download_staging" paths in config.js before use!`)
	}
})()