require 'rake'
require 'rubygems'
require 'rdoc/task'
require 'rake/clean'
require 'rake/gempackagetask'
require 'rbconfig'
require 'pp'
include Config
include Rake

# Configurable section
RUBYSFML_VERSION = "2.0"
SO_SRCS = {'audio' => FileList.new('sfml-audio/audio/*.cpp'),
					 'graphics' => FileList.new('sfml-graphics/graphics/*.cpp'),
					 'window' => FileList.new('sfml-window/window/*.cpp'),
					 'system' => FileList.new('sfml-system/system/*.cpp'),
					 'all' => FileList.new('sfml-all/all/*.cpp') }
OBJDIR = 'obj'
SODIR = 'sfml'

spec = Gem::Specification.new do |s|
	s.platform = Gem::Platform::CURRENT
	s.name     = "rbSFML"
	s.version  = RUBYSFML_VERSION
	s.authors = ["Henrik Valter Vogelius Hansson", 'Brandon Whitehead']
	s.email    = "groogy@groogy.se"
	s.homepage = 'http://sfml-dev.org'
	s.summary  = "Ruby bindings for SFML 2.0"
	s.has_rdoc = true
	s.requirements << 'none'
	s.require_path = ''
	s.files = FileList.new do |fl|
		fl.include("sfml-audio/audio/*.cpp", "sfml-audio/audio/*.hpp")
		fl.include("sfml-graphics/graphics/*.cpp", "sfml-graphics/graphics/*.hpp")
		fl.include("sfml-window/window/*.cpp", "sfml-window/window/*.hpp")
		fl.include("sfml-system/system/*.cpp", "sfml-system/system/*.hpp")
		fl.include("sfml-all/all/*.cpp", "sfml-all/all/*.hpp")
	end
  	s.extensions = ["Rakefile"]
  	s.description = <<-EOF
    	rbSFML are bindings for the SFML library version 2.0 for Ruby.
    	SFML or Simple Fast Multimedia library is is a free multimedia C++ API 
    	that provides you low and high level access to graphics, input, audio, etc.
  	EOF
  	s.extra_rdoc_files = FileList.new do |fl|
		fl.include "doc/*.rdoc"
  	end
end
verbose(false)

# Do not touch
SO_OBJS = {}
SO_SRCS.each do |file, list| 
	SO_OBJS[file] = list.collect { |fn| File.join("#{OBJDIR}/#{file}", File.basename(fn).ext('o')) } 
end

SO_LIBS = []
SO_SRCS.each_key {|file| SO_LIBS << "#{SODIR}/#{file}.so"}	
SO_OBJS.each_value {|list| CLEAN.include(list)}
SO_LIBS.each {|so_file| CLOBBER.include(so_file)}
CLOBBER.include(OBJDIR, SODIR)


# Sets the default task to build
task :default => [:build]

desc "Compiles and builds the library"
task :build
desc "Recompiles the library"
task :rebuild
desc "Installs the generated files"
task :install
desc "Uninstalls the generated files"
task :uninstall

task :clean do
	puts "Cleaning out temporary generated files"
end

task :clobber do
	puts "Cleaning out all generated files"
end

task :rebuild => [:clobber, :build] do
end

Rake::GemPackageTask.new(spec) do |pkg|
  pkg.need_tar_bz2 = true
end

RDoc::Task.new do |rd|
	rd.title = "RSFML #{RUBYSFML_VERSION} Documentation"
	rd.rdoc_files.include(SO_SRCS.values)
	rd.options << '--line-numbers' << '--quiet' << '--all'
	rd.rdoc_dir = "doc"
end

CFLAGS = CONFIG['CFLAGS']
CC = CONFIG['CC']
INSTALL = CONFIG['INSTALL_PROGRAM']
LOCATION = CONFIG['sitearchdir'] + '/sfml'

RUBYSFML_INC = "sfml-system/system"
SFML_INC = ENV.key?('SFML_INCLUDE') ? ENV['SFML_INCLUDE'] : '../../include'
SFML_LIB = ENV.key?('SFML_LIB') ? ENV['SFML_LIB'] : '../../lib'
SFML_LIBS = '-lsfml-audio-s -lsfml-graphics-s -lsfml-window-s -lsfml-system-s -lGL -lGLU -lGLEW -lX11 -lXrandr -lfreetype -ljpeg -lopenal -lsndfile'
RUBY_INC = CONFIG['rubyhdrdir']
RUBY_LIB = (CONFIG['ENABLE_SHARED'] == 'yes' ? CONFIG['LIBRUBYARG_SHARED'] : CONFIG['LIBRUBYARG_STATIC']) + ' ' + CONFIG['SOLIBS']
RUBY_LIB_PATH = CONFIG['libdir']
LINK = CONFIG['LDSHAREDXX']
LINK.sub!("$(if $(filter-out -g -g0,#{CONFIG["debugflags"]}),,-s)", '')
LINK_FLAGS = CONFIG['DLDFLAGS'] + " " + CONFIG['LDFLAGS']
LINK_FLAGS.sub!("$(DEFFILE)", "")

SO_SRCS.each_key {|dir| directory "#{OBJDIR}/#{dir}"}
directory SODIR
directory LOCATION

SO_SRCS.each do |so_file, list|
	begin
		list.each do |srcfile|
			objdir = "#{OBJDIR}/#{so_file}"
			objfile = File.join(objdir, File.basename(srcfile).ext('o'))
			file objfile => [srcfile, objdir] do
				puts "Compiling #{File.basename(srcfile)}"
				sh "#{CC} #{CFLAGS} -c #{srcfile} -o #{objfile} -I#{SFML_INC} -I#{RUBY_INC} -I#{RUBY_INC}/#{CONFIG['arch']} -I#{RUBYSFML_INC}"
				#p "#{CC} #{CFLAGS} -c #{srcfile} -o #{objfile} -I#{SFML_INC} -I#{RUBY_INC} -I#{RUBY_INC}/#{CONFIG['arch']} -I#{RUBYSFML_INC}"
			end
		end
	rescue
	end
end

SO_OBJS.each do |so_file, objs|
	begin
		file "#{SODIR}/#{so_file}.so" => [*objs, SODIR] do
			puts "Linking files to create #{so_file}.so"
			#p "#{LINK} -o #{SODIR}/#{so_file}.so #{objs} -L. -L#{SFML_LIB} -L#{RUBY_LIB_PATH} #{LINK_FLAGS} #{RUBY_LIB} #{SFML_LIBS}"
			sh "#{LINK} -o #{SODIR}/#{so_file}.so #{objs} -L. -L#{SFML_LIB} -L#{RUBY_LIB_PATH} #{LINK_FLAGS} #{RUBY_LIB} #{SFML_LIBS}"
		end
	rescue
	end
end

task :install => [:build, LOCATION] do
	puts "Installing library"
	begin
		SO_SRCS.each_key do |so_file|
			sh "#{INSTALL} #{SODIR}/#{so_file}.so #{LOCATION}"
		end
	rescue
	end
end

task :uninstall do
	puts "Uninstalling library"
	begin
		SO_SRCS.each_key do |so_file|
			sh "rm -f #{LOCATION}/#{so_file}.so"
		end
		sh "rm -rf #{LOCATION}"
	rescue
	end
end
		
task :build => SO_LIBS do
end