import fs from 'fs';
import path from 'path';
import { errorExit } from '@tps/cli/utils/error-exit';
import Template from '@tps/templates';
import * as TPS from '@tps/utilities/constants';
import { CommandModule } from 'yargs';
import { isDir } from '@tps/utilities/fileSystem';

interface CopyArgv {
	template: string;
	name: string;
}

export default {
	command: ['copy <template> [name]', 'cp <template> [name]'],
	description: 'Copy a template',
	handler(argv) {
		const template = new Template(argv.template);

		const newLocation = path.join(TPS.LOCAL_PATH, argv.name || argv.template);

		if (!TPS.IS_TPS_INITIALIZED) {
			errorExit(
				new Error(
					`Directory must be initialized with templates. Please run 'tps init'`,
				),
			);
		}

		if (isDir(newLocation)) {
			errorExit(
				new Error(
					`Template ${
						argv.name || argv.template
					} already exists in your directory`,
				),
			);
		}

		fs.promises
			.cp(template.src, newLocation, { recursive: true })
			.then(() => {
				process.exit(0);
			})
			.catch((error) => {
				errorExit(error);
			});
	},
} as CommandModule<object, CopyArgv>;