fs = require 'fs'
{exec,spawn} = require 'child_process'
util = require 'util'
sources = [
  'markdown.coffee'
  'utils.coffee'
  'view.coffee'
  'unit.coffee'
  'character.coffee'
  'room.coffee'
  'localize.coffee'
  'random.coffee'
  'salet.coffee'
]
sourcestring = ""
for source in sources
  sourcestring += 'src/'+source+' '

task 'watch', 'Watch source files and build changes', ->
  watch = spawn "coffee", ['-c', '-w', '--no-header', '-j', 'lib/index.js', sourcestring]
  watch.stdout.on 'data', (data) -> console.log data.toString().trim()

task 'build', 'Compile all CoffeeScript files', ->
  # prepare lib directory
  if not fs.existsSync 'lib'
    fs.mkdirSync 'lib'

  # run coffee-script compile
  exec "cat #{sourcestring} | coffee --compile --stdio --no-header > lib/index.js", (err, stdout, stderr) ->
    if err
      util.log err
      process.exit 1 # abort npm packaging
    util.log "Compiled CoffeeScript."
  exec "closure-compiler --compilation_level ECMASCRIPT5 --compilation_level SIMPLE --js_output_file lib/index.min.js lib/index.js", (err) ->
    if err
      util.log err
      process.exit 1 # abort npm packaging
    util.log "Minified JavaScript."