require 'pathname'
require 'fileutils'
require 'time'
require 'erb'
require 'rake/testtask'
require 'pp'
 
APP_SHORT_NAME = defined?(MACRUBY_VERSION) ? 'MRLimeChat' : 'LimeChat'
APP_NAME = APP_SHORT_NAME + '.app'
ROOT_PATH = Pathname.new(__FILE__).dirname
APP_BUILD_PATH = ROOT_PATH + 'build/Release' + APP_NAME
DOC_PATH = ROOT_PATH + 'doc'
PACKAGES_PATH = ROOT_PATH + 'Packages'
APPCAST_TEMPLATE_PATH = ROOT_PATH + 'etc/appcast_template.rxml'
WEB_PATH = ROOT_PATH + 'web'
APPCAST_PATH = WEB_PATH + 'limechat_appcast.xml'
TMP_PATH = Pathname.new("/tmp/#{APP_SHORT_NAME}_build_image")
 
 
task :default => :build
 
task :clean do |t|
  sh "rm -rf build"
end
 
task :build do |t|
  build('10.5')
end
 
task :package => [:package_app] do |t|
end
 
task :package_app => :clean do |t|
  sdk = '10.5'
  build(sdk)
  package
end
 
task :package_source do |t|
  package_source
end
 
task :appcast do |t|
  package_fname = "#{APP_SHORT_NAME}_#{app_version}.tbz"
	package_path = PACKAGES_PATH + package_fname
	stat = File.stat(package_path)
 
  version = app_version
	fsize = stat.size
	ftime = stat.mtime.rfc2822
  updates = parse_commit_log
  
  APPCAST_PATH.rmtree
  e = ERB.new(File.open(APPCAST_TEMPLATE_PATH).read, nil, '-')
  s = e.result(binding)
  File.open(APPCAST_PATH, 'w') do |f|
    f.write(s)
  end
  
  sh "mate #{WEB_PATH}"
end
 
Rake::TestTask.new do |t|
  t.test_files = FileList['test/**/*_test.rb']
end
 
 
def build(sdk)
  sh "xcodebuild -project #{APP_SHORT_NAME}.xcodeproj -target #{APP_SHORT_NAME} -configuration Release -sdk macosx#{sdk} build"
end
 
def embed_framework(sdk)
  sh %Q|/usr/bin/ruby -r etc/package_builder -e "PackageBuilder.build('#{APP_BUILD_PATH}', '#{sdk}')"|
end
 
def package
	package_path = PACKAGES_PATH + "#{APP_SHORT_NAME}_#{app_version}.tbz"
	package_path.rmtree
	TMP_PATH.rmtree
	TMP_PATH.mkpath
	APP_BUILD_PATH.cptree(TMP_PATH)
	
	DOC_PATH.cptree(TMP_PATH)
	rmglob(TMP_PATH + '**/ChangeLog.txt')
	rmglob(TMP_PATH + '**/.DS_Store')
	
	Dir.chdir(TMP_PATH) do
		sh "tar jcf #{package_path} *"
	end
	
	TMP_PATH.rmtree
end
 
def package_source
	source_package_path = PACKAGES_PATH + "#{APP_SHORT_NAME}_#{app_version}_src.tbz"
	source_package_path.rmtree
	TMP_PATH.rmtree
	
	ROOT_PATH.cptree(TMP_PATH)
	
	rmglob(TMP_PATH + 'build')
	rmglob(TMP_PATH + 'etc')
	rmglob(TMP_PATH + 'Packages')
	rmglob(TMP_PATH + 'script')
	rmglob(TMP_PATH + 'web')
	rmglob(TMP_PATH + '*.tmproj')
	rmglob(TMP_PATH + 'MRLimeChat.xcodeproj')
	rmglob(TMP_PATH + 'LimeChat.xcodeproj/*.mode1*')
	rmglob(TMP_PATH + 'LimeChat.xcodeproj/*.pbxuser')
	rmglob(TMP_PATH + '**/*.tm_build_errors')
	rmglob(TMP_PATH + '**/.gitignore')
	rmglob(TMP_PATH + '**/.DS_Store')
	rmglob(TMP_PATH + '**/*~.nib')
	rmglob(TMP_PATH + '**/._*')
	
	Dir.chdir(TMP_PATH) do
		sh "tar jcf #{source_package_path} *"
	end
	
	TMP_PATH.rmtree
end
 
 
class CommitLog
  attr_accessor :hash, :merge, :author, :date
  attr_reader :lines
  
  def initialize
    @lines = []
  end
  
  def add_line(line)
    @lines << line
  end
  
  def release_version
    ary = @lines.select {|e| e =~ /^released (\d+\.\d+)$/i }
    if ary
      $1
    else
      nil
    end
  end
  
  def one_line
    s = ''
    @lines.each do |e|
      s << e
      s << ' '
    end
    s.chop
  end
  
  def inspect
    "<CommitLog #{hash[0...6]} #{author} #{date}>"
  end
end
 
 
def parse_commit_log
  updates = []
  commit = nil
  
  log = `git log`
  
  log.each_line do |s|
    s.chomp!
    if s =~ /^commit\s+/
      if commit
        updates << commit
      end
      commit = CommitLog.new
      commit.hash = $~.post_match
    elsif s =~ /^Author:\s*/
      commit.author = $~.post_match
    elsif s =~ /^Date:\s*/
      commit.date = $~.post_match
    elsif s =~ /^Merge:\s*/
      commit.merge = $~.post_match
    elsif s =~ /^\s*$/
      ;
    elsif s =~ /^\s+/
      commit.add_line($~.post_match)
    end
  end
  
  updates << commit
  
  ver = app_version
  first = 0
  last = 0
  updates.each_with_index do |e,i|
    rel = e.release_version
    if rel
      if rel == ver
        first = i + 1
      else
        last = i
        break
      end
    end
  end
  
  updates = updates[first...last]
  updates.map {|e| e.one_line }
end
 
 
module Util
	def app_version
		file = ROOT_PATH + 'Info.plist'
		file.open do |f|
		  next_line = false
		  while s = f.gets
		    if next_line
		      next_line = false
		      if s =~ /<string>(.+)<\/string>/
		        return $1
		      end
		    elsif s =~ /<key>CFBundleShortVersionString<\/key>/
		      next_line = true
		    end
		  end
		end
		nil
	end
 
	def rmglob(path)
	  FileUtils.rm_rf(Dir.glob(path.to_s))
	end
end
include Util
 
class Pathname
  def rmtree
    FileUtils.rm_rf(to_s)
  end
  
  def cptree(to)
    FileUtils.cp_r(to_s, to.to_s)
  end
end