const yargs = require('yargs');

const execa = require('execa');

const fs = require('fs-extra');

const path = require('path');

const rootDir = process.cwd();

let argv = yargs

.usage(

'$0 <from> <to> [-b|--bootstrap]')

.command({

command: '*',

builder: yargs => {

return yargs

.option('b', {

alias: 'bootstrap',

describe: 'bootstrap example',

type: 'boolean',

default: true,

});

},

handler: async argv => {

console.log(argv);

const templatePath = path.join(rootDir, `examples/${argv._[0]}`);

const projectPath = path.join(rootDir, `examples/${argv._[1]}`);

const relativePath = `examples/${argv._[1]}`;

fs.copy(templatePath, projectPath)

.then(async function() {

const packageJsonData = JSON.parse(

await fs.readFile(path.join(projectPath, 'package.json'))

);

packageJsonData.name = `razzle-examples-${argv._[1]}`

const jsonString = JSON.stringify(packageJsonData, null, ' ') + '\n';

if (jsonString) {

try {

fs.writeFileSync(path.join(projectPath, 'package.json'), jsonString);

} catch {

console.log(`failed to write json ${item}`);

}

} else {

console.log(`not writing empty json ${item}`);

}

if (argv.bootstrap) {

execa.sync(`yarn`, ['bootstrap-examples', relativePath],

{ stdio: 'inherit', cwd: rootDir })

}

console.log(`Type\ncd ${relativePath}\nTo work on the new example`);

})

},

})

.help().argv;