# oriDomi Cakefile
# Dan Motzenbecker

fs      = require 'fs'
cp      = require 'child_process'
binPath = './node_modules/.bin/'

exec = (cmd, cb) ->
  cp.exec binPath + cmd, cb


spawn = (cmd, args) ->
  cp.spawn binPath + cmd, args


tgthr = (fns, cb) ->
  res = {}
  out = (k) -> ->
    delete fns[k]
    res[k] = arguments
    cb res unless Object.keys(fns).length
  v out k for k, v of fns


startWatcher = (bin, args) ->
  watcher = spawn bin, args?.split ' '
  watcher.stdout.pipe process.stdout
  watcher.stderr.pipe process.stderr


announce = (name, fn) -> ->
  console.log "Running #{ name }..."
  fn.apply @, arguments


print = (cb) ->
  (err, stdout, stderr) ->
    throw err if err
    console.log stdout, stderr
    cb?.apply @, arguments


build = (cb) ->
  tgthr
    compile: (cb) -> compile null, -> minify null, cb
    docs:    (cb) -> docs    null, cb
    demo:    (cb) -> demo    null, cb
  , ->
    console.log 'Build succeeded.'
    stats()
    cb?()


watch = ->
  startWatcher.apply @, pair for pair in [
    ['coffee', '-mwc oridomi.coffee']
    ['coffee', '-mwc demo/demo.coffee']
    ['stylus', '-u nib -w demo/demo.styl']
  ]


stats = ->
  tgthr
    coffee: (cb) -> fs.stat 'oridomi.coffee', cb
    js:     (cb) -> fs.stat 'oridomi.js',     cb
    mini:   (cb) -> fs.stat 'oridomi.min.js', cb
  , (stats) ->      console.log "#{ key }:\t#{ stat[1].size } B" for key, stat of stats


compile = announce 'compile', (args, cb) ->
  exec 'coffee -mc oridomi.coffee', print cb

minify  = announce 'minify',  (args, cb) ->
  exec 'uglifyjs --screw-ie8 -c unused=false -vmo oridomi.min.js oridomi.js', print cb

docs    = announce 'docs',    (args, cb) ->
  exec 'docco oridomi.coffee', print cb

demo    = announce 'demo',    (args, cb) ->
  tgthr
    coffee: (cb) -> exec 'coffee -mc demo/demo.coffee', print cb
    styl:   (cb) -> exec 'stylus -u nib demo/demo.styl', print cb
  , -> cb null



task 'build',   'compile, minify, and generate annotated source', build
task 'watch',   'compile continuously',                           watch
task 'compile', 'compile .coffee to .js',                         compile
task 'minify',  'compress .js for production',                    minify
task 'docs',    'generate annotated source page in ./docs',       docs
task 'stats',   'output filesize stats',                          stats
task 'demo',    'compile doc site .coffee and .styl',             demo