#!/usr/bin/env coffee

File = require("fs")
Uglify = require("uglify-js")
Coffee = require("coffee-script")
Ender = require("ender")
Stylus = require("stylus")
Nib = require("nib")
Async = require("async")

assert = require("assert")

dependencies = ["domready", "bonzo", "qwery", "bean", "reqwest"]

console.log "BUILDING ENDER PACKAGE"
Ender.build dependencies, {output: "vendor/javascript/ender"}, ->
  
  to_build = [
    "vendor/javascript/ender.js"
    "vendor/javascript/highlight.js"
    "vendor/javascript/languages/*"
    "vendor/javascript/marked.js"
    "src/browser/documentup.coffee"
    "src/stylesheets/screen.styl"
  ]

  Async.map to_build, (path, callback)->
    if /\*$/.test(path)
      console.log "CONCATENATING ALL FILES UNDER: #{path}"
      new_path = path.replace "*", ""
      File.readdir "#{__dirname}/../#{new_path}", (err, files)->
        return callback(err) if err
        contents = ""
        files.forEach (file, index, arr)->
          return unless /(js|coffee)$/.test(file)
          File.readFile "#{__dirname}/../#{new_path}#{file}", "utf8", (err, content)->
            if /xml/.test(file)
              contents = content + contents
            else
              contents += content
            callback(null, contents) if index == arr.length - 1
    else
      console.log "CONCATENATING #{path}"
      contents = File.readFile "#{__dirname}/../#{path}", "utf8", (err, contents)->
        return callback(err) if err
        if /coffee$/.test(path)
          try
            contents = Coffee.compile(contents)
          catch e
            return callback(e)
          callback(null, contents)
        else if /styl$/.test(path)
          Stylus(contents).set('filename', path).set('compress', true).use(Nib()).render (err, css)->
            return callback(err) if err
            contents = """
              var style_tag = document.createElement("style");
              style_tag.type = "text/css"
              style_tag.innerHTML = '#{css.replace(/\n/gm, "")}'
              document.getElementsByTagName('head')[0].appendChild(style_tag);
            """
            callback(null, contents)
        else
          callback(err, contents)
  
  , (err, contents) ->
    return throw err if err
    contents = contents.join("")
    File.writeFile "#{__dirname}/../documentup.js", contents, (err)->
      if err
        console.log "AN ERROR OCCURED WHEN ATTEMPTING TO SAVE UNCOMPRESSED FILE"
        console.log(err)
      console.log "UNCOMPRESSED FILE SAVED TO: #{__dirname}/../documentup.js"
    try
      ast = Uglify.parser.parse(contents)
      ast = Uglify.uglify.ast_mangle(ast)
      ast = Uglify.uglify.ast_squeeze(ast)
      final_code = Uglify.uglify.gen_code(ast)
      File.writeFile "#{__dirname}/../documentup.min.js", final_code, (err)->
        throw err if err
        console.log "COMPRESSED FILE SAVED TO: #{__dirname}/../documentup.min.js"
    catch e
      console.log "AN ERROR OCCURED WHEN ATTEMPTING TO SAVE COMPRESSED FILE"
      console.log(e)