#!/usr/bin/env ruby
#    Rubyripper - A secure ripper for Linux/BSD/OSX
#    Copyright (C) 2007  Bouke Woudstra (rubyripperdev@gmail.com)
#
#    This file is part of Rubyripper. Rubyripper is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>

$PREFIX='/usr/local'
$BINDIR='/bin'
$LOCALE='/share/locale'
$ICONDIR='/share/icons/hicolor/128x128/apps'
$DESKTOP='/share/applications'
$RUBYDIR= "#{$:[0]}"
$RUBYDIR= $RUBYDIR[$RUBYDIR.index('/lib')..-1] # remove the prefix
if RUBY_PLATFORM.include?('darwin')
	$INSTALL = 'install'
else
	$INSTALL = 'install -D'
end

$GTK2 = false
$CLI = false
$LANG_ALL = false
$LANG = []

require './rr_lib.rb'

if ARGV.include?('--help') || ARGV.include?('-h') || ARGV.length == 0
	puts ""
	puts "--prefix=<destination_dir>  (default: #{$PREFIX})"
	puts "--bindir=<bin_dir>  (default: #{$BINDIR})"
	puts "--locale=<locale_dir>  (default: #{$LOCALE})"
	puts "--icondir=<icon_theme_dir>  (default: #{$ICONDIR})"
	puts "--desktop=<desktop_dir>  (default: #{$DESKTOP})"
	puts "--ruby=<ruby_dir>  (default: #{$RUBYDIR})"
	puts ""
	puts "--enable-gtk2  (install the gtk2 frontend)"
	puts "--enable-cli  (install the cli frontend)"
	puts "--enable-lang-all  (install all locale files)"
	puts "--enable-lang=<xx>  (install specific locale file, separate with a comma)"
	puts ""
	puts "--update-lang  (updates the locale files)"
	puts "--update-lib (resets file locations in ruby files)"
	puts ""
	exit()
end

def update_lang #will be called by the self-created Makefile :)
	require 'gettext/utils'
	GetText.update_pofiles("rubyripper", ["rubyripper_cli.rb","rubyripper_gtk2.rb", "rr_lib.rb"], "Rubyripper #{$rr_version}", "./locale/po")
	GetText.create_mofiles(true, "./locale/po", "./locale")
	exit()
end

def check_deps
	puts "Checking the NEEDED dependencies...."
	begin 
		require 'gettext'
	rescue LoadError
		puts "ruby-gettext is not found. Please install ruby-gettext.\nInstall can't proceed."
		exit()
	end
	
	installed('cdparanoia') ? puts("cdparanoia found...") : puts("cdparanoia NOT found")
	
	puts "\nChecking the OPTIONAL dependencies..."
	
	puts "Testing support for the graphical frontend..."
	begin
		require 'gtk2'
		puts "ruby-gtk2 bindings found"
	rescue
		LoadError
		puts "ruby-gtk2 is not found. The graphical frontend won't work!"
	end
	
	puts "\nTesting support for freedb metadata fetching..."
	(installed('cd-discid') || installed('discid')) ? puts("cd-discid or discid found...") : puts("Neither cd-discid or discid could be found.")
	
	puts "\nTesting support for ejecting the disk tray..."
	(installed('eject') || installed('diskutil')) ? puts("eject or disktutil found...") : puts("Neither eject or disktutil could be found.")

	puts "\nTesting support for different codecs on your system..."
	installed('flac') ? puts("flac found...") : puts("flac NOT found.")
	installed('oggenc') ? puts("oggenc (vorbis) found...") : puts("oggenc (vorbis) NOT found.")
	installed('lame') ? puts("lame (mp3) found...") : puts("lame (mp3) NOT found.")
	
	puts "\nTesting support for replaygain..."
	installed('wavgain') ? puts("wavgain found...") : puts("wavgain NOT found.")
	installed('vorbisgain') ? puts("vorbisgain found...") : puts("vorbisgain NOT found.")
	installed('mp3gain') ? puts("mp3gain found...") : puts("mp3gain NOT found.")
	
	puts "\nTesting support for normalize..."
	installed('normalize') ? puts("normalize found...") : puts("normalize NOT found")
end

def update_lib
	['rr_lib.rb', 'rubyripper_gtk2.rb', 'rubyripper_cli.rb'].each do |filename|
		file = File.readlines(filename)
		index = 0
		file.each do |line|
			if line =~ /LOCALE=/
				file[index] = "LOCALE=[ENV['PWD'] + \"/locale\", \"#{$PREFIX + $LOCALE}\"]"
				break
			elsif line =~ /ICONDIR=/
				file[index] = "ICONDIR=[ENV['PWD'], \"#{$PREFIX + $ICONDIR}\"]"
			elsif line =~ /RUBYDIR=/
				file[index] = "RUBYDIR=[ENV['PWD'], File.dirname(__FILE__), \"#{$PREFIX + $RUBYDIR}\"]"
				break
			end
			index += 1
		end
		outputfile = File.open(filename, "w+")
		file.each{|line| outputfile.puts line}
		outputfile.close()
	end
end

ARGV.each do |argument|
	if argument[0,9] == "--prefix="
		$PREFIX = argument[9..-1]
	elsif argument[0,9] == "--bindir="
		$BINDIR = argument[9..-1]
	elsif argument[0,9] == "--locale="
		$LOCALE = argument[9..-1]
	elsif argument[0,10] == "--icondir="
		$ICONDIR = argument[10..-1]
	elsif argument[0,10] == "--desktop="
		$DESKTOP = argument[10..-1]
	elsif argument[0,7] == "--ruby="
		$RUBYDIR = argument[7..-1]
	elsif argument == '--enable-gtk2'
		$GTK2 = true
	elsif argument == '--enable-cli'
		$CLI = true
	elsif argument == '--enable-lang-all'
		$LANG_ALL = true
	elsif argument[0,14] == '--enable-lang='
		$LANG = argument[14..-1].split(',')
	elsif argument == "--update-lang"
		update_lang()
	elsif argument == "--update-lib"
		update_lib()
		exit()
	end
end

if $LANG_ALL
	$LANG=["nl", "de", "hu", "ru", "es"]
end

unless ($GTK2 || $CLI)
	puts "You have to choose at least one frontend you want to install!"
	puts ""
	exit()
end

check_deps()

puts "Creating the Makefile..."
makefile = File.new("Makefile", "w+")
makefile.puts "#This Makefile is automatically created by configure"
makefile.puts ""
makefile.puts "BINDIR=#{$PREFIX}#{$BINDIR}"
makefile.puts "LOCALE=#{$PREFIX}#{$LOCALE}"
makefile.puts "ICONDIR=#{$PREFIX}#{$ICONDIR}"
makefile.puts "DESKTOP=#{$PREFIX}#{$DESKTOP}"
makefile.puts "RUBYDIR=#{$PREFIX}#{$RUBYDIR}"
makefile.puts ""
makefile.puts "all:"
makefile.puts "\t`ruby configure --update-lang` #update the locale files"
makefile.puts ""
makefile.puts "install: all"
makefile.puts "\t#{$INSTALL} rr_lib.rb $(prefix)$(DESTDIR)$(RUBYDIR)/rr_lib.rb"

if $GTK2
	makefile.puts "\t#{$INSTALL} -m 755 rubyripper_gtk2.rb $(prefix)$(DESTDIR)$(BINDIR)/rrip_gui"
	makefile.puts "\t#{$INSTALL} rubyripper.png $(prefix)$(DESTDIR)$(ICONDIR)/rubyripper.png"
	makefile.puts "\t#{$INSTALL} rubyripper.desktop $(prefix)$(DESTDIR)$(DESKTOP)/rubyripper.desktop"
end

if $CLI
	makefile.puts "\tinstall -m 755 -D rubyripper_cli.rb $(prefix)$(DESTDIR)$(BINDIR)/rrip_cli"
end

$LANG.each do |lang|
	makefile.puts "\t#{$INSTALL} locale/#{lang}/LC_MESSAGES/rubyripper.mo $(prefix)$(DESTDIR)$(LOCALE)/#{lang}/LC_MESSAGES/rubyripper.mo"
end

makefile.puts ""
makefile.puts "uninstall:"
makefile.puts "\trm $(prefix)$(DESTDIR)$(RUBYDIR)/rr_lib.rb"

if $GTK2
	makefile.puts "\trm $(prefix)$(DESTDIR)$(BINDIR)/rrip_gui"
	makefile.puts "\trm $(prefix)$(DESTDIR)$(ICONDIR)/rubyripper.png"
	makefile.puts "\trm $(prefix)$(DESTDIR)$(DESKTOP)/rubyripper.desktop"
end

if $CLI
	makefile.puts "\trm $(prefix)$(DESTDIR)$(BINDIR)/rrip_cli"
end

$LANG.each do |lang|
	makefile.puts "\trm $(prefix)$(DESTDIR)$(LOCALE)/#{lang}/LC_MESSAGES/rubyripper.mo"
end
makefile.puts ""
makefile.puts "clean:"
makefile.puts "\t`ruby configure --update-lib`"
makefile.puts "\trm Makefile"
makefile.puts "distclean:"
makefile.puts ""
makefile.close

update_lib() #set file locations in the ruby files

puts "A summary of your settings:"
puts ""
puts "Using the following locations for install:"
puts "* Executables: #{$PREFIX}#{$BINDIR}"
puts "* Localization files: #{$PREFIX}#{$LOCALE}"
puts "* Icon file: #{$PREFIX}#{$ICONDIR}"
puts "* Desktop file: #{$PREFIX}#{$DESKTOP}"
puts "* Ruby library: #{$PREFIX}#{$RUBYDIR}"
puts ""

if $GTK2 == true: puts "Gtk2 frontend will be installed" end
if $CLI == true: puts "Cli frontend will be installed" end
unless $LANG.empty?: puts "Languages to be installed: #{$LANG.join(', ')}" end

puts ""
puts "You can now run make install"
puts "Make sure you've got the writing privileges"
puts ""