# This file was originally created by Benjamin Lupton <b@lupton.cc> (http://balupton.com)
# and is currently licensed under the Creative Commons Zero (http://creativecommons.org/publicdomain/zero/1.0/)
# making it public domain so you can do whatever you wish with it without worry (you can even remove this notice!)
#
# If you change something here, be sure to reflect the changes in:
# - the scripts section of the package.json file
# - the .travis.yml file


# -----------------
# Variables

WINDOWS = process.platform.indexOf('win') is 0
NODE    = process.execPath
NPM     = if WINDOWS then process.execPath.replace('node.exe','npm.cmd') else 'npm'
EXT     = (if WINDOWS then '.cmd' else '')
APP     = process.cwd()
BIN     = "#{APP}/node_modules/.bin"
CAKE    = "#{BIN}/cake#{EXT}"
COFFEE  = "#{BIN}/coffee#{EXT}"
DOCPAD  = "#{BIN}/docpad#{EXT}"
UGLIFY  = "#{BIN}/uglifyjs#{EXT}"
OUT     = "#{APP}/out"
SRC     = "#{APP}/src"
BROWSERIFY = "#{BIN}/browserify#{EXT}"


# -----------------
# Requires

pathUtil = require('path')
{exec,spawn} = require('child_process')
safe = (next,fn) ->
  return (err) ->
    return next(err)  if err
    return fn()


# -----------------
# Actions

bench = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(NODE, ["#{OUT}/test/benchmark.js"], {stdio:'inherit',cwd:APP}).on('close',next)

clean = (opts,next) ->
  (next = opts; opts = {})  unless next?
  args = [
    '-Rf'
    OUT
    pathUtil.join(APP, 'node_modules')
    pathUtil.join(APP, '*out')
    pathUtil.join(APP, '*log')
  ]
  spawn('rm', args, {stdio:'inherit',cwd:APP}).on('close',next)

browserify = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(
    BROWSERIFY, 
    ["#{OUT}/lib/js2coffee.js", '-s', 'js2coffee', '-o', "#{OUT}/lib/browser.js"], 
    {stdio:'inherit',cwd:APP}
  ).on('close',next)

uglify = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(UGLIFY, ["#{OUT}/lib/browser.js", '-ms'], {stdio:'inherit',cwd:APP}).on('close',next)

compile = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(DOCPAD, ['generate'], {stdio:'inherit',cwd:APP}).on('close',next)

watch = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(DOCPAD, ['watch'], {stdio:'inherit',cwd:APP}).on('close',next)

install = (opts,next) ->
  (next = opts; opts = {})  unless next?
  spawn(NPM, ['install'], {stdio:'inherit',cwd:APP}).on('close',next)

reset = (opts,next) ->
  (next = opts; opts = {})  unless next?
  clean opts, safe next, -> install opts, safe next, -> compile opts, next

setup = (opts,next) ->
  (next = opts; opts = {})  unless next?
  install opts, safe next, ->
    compile opts, next

test = (opts,next) ->
  (next = opts; opts = {})  unless next?
  args = []
  args.push("--debug-brk")  if opts.debug
  args.push("#{OUT}/test/everything.js")
  spawn(NODE, args, {stdio:'inherit',cwd:APP}, next)

finish = (err) ->
  throw err  if err
  console.log('OK')


# -----------------
# Commands

# bench
task 'bench', 'benchmark our project', ->
  bench finish

# clean
task 'clean', 'clean up instance', ->
  clean finish

# compile
task 'compile', 'compile our files', ->
  compile finish

# browserify
task 'browserify', 'browserify', ->
  browserify finish

# uglify
task 'uglify', 'minify browser.js and dump to stdout', ->
  uglify ->

# dev/watch
task 'dev', 'watch and recompile our files', ->
  watch finish
task 'watch', 'watch and recompile our files', ->
  watch finish

# install
task 'install', 'install dependencies', ->
  install finish

# reset
task 'reset', 'reset instance', ->
  reset finish

# setup
task 'setup', 'setup for development', ->
  setup finish

# test
task 'test', 'run our tests', ->
  test finish

# test-debug
task 'test-debug', 'run our tests in debug mode', ->
  test {debug:true}, finish

# test-prepare
task 'test-prepare', 'prepare out tests', ->
  setup finish