#!/usr/bin/env ruby

# BUILD SPROUTCORE APPLICATIONS
# This script will build SproutCore applications for you.  Usage:
#
# sc-build                 build all clients
# sc-build bundle-name     build just the named bundle
# sc-build -l library_root path to the library you want to load bundles from
# sc-build -t build_root   set optional build root
# sc-build -e development|production  defaults to production
# sc-build bundle-name -r  builds bundle and dependent bundles but none others

APP_ROOT = File.expand_path(Dir.pwd)
SC_ROOT = File.expand_path(File.join(File.dirname(__FILE__), '..'))
$:.unshift File.join(SC_ROOT,'lib') ;

# Require SproutCore
require 'rubygems'
require 'rubigen'
require 'sproutcore'
require 'optparse'

############################################################
## Define Helper Methods
##

def not_found(bundle_name)
  SC.logger.fatal("Could not find a bundle named: #{bundle_name}")
  exit(1)
end

############################################################
## Process Options
##

# Setup defaults
build_mode = :production
build_root = File.join(APP_ROOT,'tmp','build')
bundle_name = ARGV.shift if (ARGV.size > 0 && ARGV[0][0..0] != '-')
library_root = APP_ROOT
include_dependencies = false
verbose = false # show debug level
languages = nil
clean = false

opts = OptionParser.new do |opts|
  opts.version = SproutCore::VERSION::STRING

  opts.banner = "Usage: sc-build {bundle-name} {options}"
  opts.define_head "Build Tool for SproutCore applications"
  opts.separator '*'*80
  opts.separator 'If no flags are given, sc-build will try to build all of the bundles in the current directory'
  opts.separator '*'*80

  opts.on("-e", "--enviroment=MODE", "Set the build mode for the system.  Normally you want to build in production mode (which is the default if you do not include this option), but you can use this switch to build in development mode for testing.") do |opt_build_mode|
    build_mode = opt_build_mode.to_s.downcase.to_sym
  end
  
  opts.on("-t", "--target=PATH", "Set the target path for your build.  Normally this will be set to tmp/build in the working directory") do |opt_target|
    build_root = File.expand_path(opt_target)
  end
  
  opts.on("-l", "--library=PATH", "The library root you want to use.  Normally sc-build will use the working directory.  If you want to point to another project on disk to build from, use this option.") do |opt_library|
    library_root = File.expand_path(opt_library)
  end
  
  opts.on("-r", "--[no-]include-required", "If passed when building a single client, then the build tool will also find any required bundles and build them as well.") do |opt_req|
    include_dependencies = !!opt_req
  end
  
  opts.on("-v", "--[no-]verbose", "If set, extra debug output will be displayed during the build") do |opt_verbose|
    verbose = !!opt_verbose
  end
  
  opts.on("-L", "--languages=LANGUAGE", "Pass a comma separated list of the specific languages you want to build.  If you do not pass this option, the build tool will build all languages required by the bundles to function") do |opt_lang|
    languages = opt_lang.split(',').map { |x| x.to_sym }
  end
  
  opts.on("-c", "--[no-]clean", "If set, then the build tool will delete a bundle's output before it builds it, so you get a clean build") do |opt_clean|
    clean = !!opt_clean
  end
  
end
opts.parse!

############################################################
## SETUP ENVIRONMENT
##
  
# Configure logger
SC.logger.level = (verbose) ? Logger::DEBUG : Logger::INFO
SC.logger.progname = $0

# Load Library
library = SC.library_for(library_root, :public_root => build_root, :url_prefix => '', :build_mode => build_mode)

############################################################
## FIND BUNDLES TO BUILD
##

puts "build_root = #{build_root}"

# Find the bundles to build.
if bundle_name
  # Get bundle
  bundle = library.bundle_for(bundle_name.to_sym)
  not_found(bundle) if bundle.nil?

  # If dependencies are required, get those bundles as well
  if include_dependencies
    bundles = bundle.all_required_bundles
  else
    bundles = [bundle]
  end
  
  SC.logger.info("Building: #{bundles.map { |x| x.bundle_name } * ', ' }...")
  
# No bundle provided, get all bundles for library
else
  bundles = library.bundles
  SC.logger.info("Building ALL bundles:\n #{bundles.map { |x| x.bundle_name } * ', '}...")
end  
 
############################################################
## BUILD EACH BUNDLE
##

# Detect required languages to build
languages = bundles.map { |b| b.installed_languages }.flatten.uniq if languages.nil?
SC.logger.info("Selected Languages: #{languages.join(', ')}")

SC.logger.info('')
bundles.each do |bundle|
  SC.logger.info("Building #{bundle.bundle_name} > #{bundle.build_root}...")
  
  if clean
    SC.logger.debug("~ Cleaning #{bundle.build_root}")
    FileUtils.rm_rf(bundle.build_root)
  end
  
  bundle.build(*languages)
end

SC.logger.debug("")