#!/usr/bin/env node

'use strict';

var Liftoff = require('liftoff');
var chalk = require('chalk');
var path = require('path');
var logger = console;

var cli = new Liftoff({
  name: 'cha',
  addExtensions: ['.coffee'],
});

cli.on('require', function(name) {
  logger.log('Requiring external module', chalk.magenta(name));
});

cli.on('requireFail', function(name) {
  logger.log(chalk.red('Failed to load external module'), chalk.magenta(name));
});

cli.launch(handler);

function handler(env) {

  var argv = env.argv;
  var cliPackage = require('../package');
  var versionFlag = argv.v || argv.version;

  if(path.extname(env.configPath) === '.coffee'){
    require('coffee-script/register');
  }

  if (versionFlag) {
    logger.log('Global installed cha CLI version', chalk.green(cliPackage.version));
    if (env.modulePackage.version) {
      logger.log('Local installed cha version', chalk.green(env.modulePackage.version));
    }
    process.exit(0);
  }

  if (!env.configPath) {
    logger.log(chalk.red('No chafile found in'), chalk.magenta(env.cwd));
    process.exit(1);
  }

  if (!env.modulePath) {
    logger.log(chalk.red('No local cha installed found in'), chalk.magenta(env.cwd));
    logger.log(chalk.red('Try execute: npm install cha'));
    process.exit(1);
  }

  if (process.cwd() !== env.cwd) {
    process.chdir(env.cwd);
    logger.log('Working directory changed to', chalk.magenta(env.cwd));
  }

  logger.log('Using chafile', chalk.magenta(env.configPath));
  require(env.configPath);

}