#! /usr/bin/env node

/**
Command-line interface (CLI) for HackMyResume.
@license MIT. Copyright (c) 2015 hacksalot (https://github.com/hacksalot)
@module index.js
*/



var SPAWNW = require('./core/spawn-watch')
  , ARGS = require( 'minimist' )
  , FCMD  = require( './hackmycmd')
  , PKG = require('../package.json')
  , FS = require('fs')
  , chalk = require('chalk')
  , PATH = require('path')
  , HACKMYSTATUS = require('./core/status-codes')
  , opts = { }
  , title = chalk.white.bold('\n*** HackMyResume v' + PKG.version + ' ***')
  , _ = require('underscore');




try {
  main();
}
catch( ex ) {
  require('./core/error-handler').err( ex, true );
}



function main() {

  // Setup
  var a = ARGS( process.argv.slice(2) );
  if( a._.length === 0 ) { throw { fluenterror: 4 }; }
  opts = getOpts( a );
  logMsg( title );

  // Get the action to be performed
  var params = a._.map( function(p){ return p.toLowerCase().trim(); });
  var verb = opts.help ? 'help' : params[0];
  if( !FCMD.verbs[ verb ] && !FCMD.alias[ verb ] ) {
    logMsg(chalk.yellow('Invalid command: "') + chalk.yellow.bold(verb) + chalk.yellow('"'));
    return;
  }

  // Find the TO keyword, if any
  var splitAt = _.indexOf( params, 'to' );
  if( splitAt === a._.length - 1 && splitAt !== -1 ) {
    // 'TO' cannot be the last argument
    logMsg(chalk.yellow('Please ') + chalk.yellow.bold('specify an output file') +
      chalk.yellow(' for this operation or ') + chalk.yellow.bold('omit the TO keyword') +
      chalk.yellow('.') );
    return;
  }

  // Massage inputs and outputs
  var src = a._.slice(1, splitAt === -1 ? undefined : splitAt );
  var dst = splitAt === -1 ? [] : a._.slice( splitAt + 1 );

  // Invoke the action
  (FCMD.verbs[verb] || FCMD.alias[verb]).apply(null, [src, dst, opts, logMsg]);

}

function logMsg( msg ) {
  opts.silent || console.log( msg );
}

function getOpts( args ) {
  var noPretty = args.nopretty || args.n;
  noPretty = noPretty && (noPretty === true || noPretty === 'true');
  return {
    theme: args.t || 'modern',
    format: args.f || 'FRESH',
    prettify: !noPretty,
    silent: args.s || args.silent,
    css: args.css || 'embed',
    help: args.help || undefined
  };
}