#!/usr/bin/env ruby
 
# Copyright (c) 2008 Blake Elshire, Chris Griego
# 
# Blender is freely distributable under the terms of an MIT-style license.
# For details, see http://www.opensource.org/licenses/mit-license.php
 
$:.unshift File.join(File.dirname(File.symlink?(__FILE__) ? File.readlink(__FILE__) : __FILE__), *%w[.. lib])
require 'optparse'
require 'front_end_architect/blender'
 
options = {}
 
def section(opts, title)
  opts.separator ''
  opts.separator title + ':'
end
 
opts = OptionParser.new do |opts|
  version = "Front-End Blender v#{FrontEndArchitect::Blender::VERSION}"
  
  opts.on('-g',            '--generate',              String,        "Generate a stub Blendfile")                  {    options[:generate]     = true                      }
  opts.on('-f FILE',       '--file FILE',             String,        "Use specified Blendfile")                    {|f| options[:blendfile]    = f                         }
  opts.on('-r ROOT',       '--root ROOT',             String,        "Specify the path to the web root directory") {|r| options[:root]         = r                         }
  opts.on('-t TYPE',       '--type TYPE',             [:css, :js],   "Select file type to blend (css, js)")        {|t| options[:file_type]    = t                         }
  opts.on('-m [MINIFIER]', '--min [MINIFIER]',        [:yui, :none], "Select minifier to use (yui, none)")         {|m| options[:min]          = m.nil? ? :none : m.to_sym }
  opts.on('-c [BUSTER]',   '--cache-buster [BUSTER]', String,        "Add cache busters to URLs in CSS")           {|b| options[:cache_buster] = b.nil? ? :mtime : b       }
  opts.on(                 '--force',                 String,        "Don't allow output files to be skipped")     {    options[:force]        = true                      }
  opts.on(                 '--yui=YUIOPTS',           String,        "Pass arguments to YUI Compressor")           {|o| options[:yuiopts]      = o                         }
  section opts, 'Experimental'
  opts.on('-d',            '--data',                  String,        "Convert url(file.ext) to url(data:) in CSS") {    options[:data]         = true                      }
  opts.on('-z',            '--gzip',                  String,        "Additionally generate gzipped output files") {    options[:gzip]         = true                      }
  section opts, 'Meta'
  opts.on('-h',            '--help',                                 "Show this message")                          {    puts opts;    exit 0                               }
  opts.on('-V',            '--version',                              "Show the version number")                    {    puts version; exit 0                               }
  
  opts.parse!(ARGV) rescue return false
end
 
begin
  blender = FrontEndArchitect::Blender.new(options)
  
  if (options[:generate])
    blender.generate
  else
    blender.blend
  end
rescue Exception => e
  puts e
  exit 1
end