require 'rubygems'
require 'rake'
require 'rake/testtask'
require "rake/rdoctask"
require "rake/gempackagetask"  

PRAWN_VERSION = "0.2.99" 

task :default => [:test]
       
desc "Run all tests, test-spec and mocha required"
Rake::TestTask.new do |test|
  test.libs << "spec"
  test.test_files = Dir[ "spec/*_spec.rb" ]
  test.verbose = true
end

desc "Show library's code statistics"
task :stats do
	require 'code_statistics'
	CodeStatistics.new( ["Prawn", "lib"], 
	                    ["Specs", "spec"] ).to_s
end

desc "genrates documentation"
Rake::RDocTask.new do |rdoc|
  rdoc.rdoc_files.include( "README",
                           "COPYING",
                           "LICENSE", "lib/" )
  rdoc.main     = "README"
  rdoc.rdoc_dir = "doc/html"
  rdoc.title    = "Prawn Documentation"
end     

desc "run all examples, and then diff them against reference PDFs"
task :examples do 
  mkdir_p "output"
  examples = Dir["examples/*.rb"]
  t = Time.now
  puts "Running Examples"
  examples.each { |file| `ruby -Ilib #{file}` }  
  puts "Ran in #{Time.now - t} s"        
  `mv *.pdf output`                     
                   
  unless RUBY_VERSION < "1.9"    
    puts "Checking for differences..."
    output = Dir["output/*.pdf"]
    ref    = Dir["reference_pdfs/*.pdf"]   
    output.zip(ref).each do |o,r|
      system "diff -q #{o} #{r}"
    end                      
  end

end

task :generate do
  if File.exists?("examples/#{ENV['example']}.rb")
    puts "Example already exists"
  else
    File.open("examples/#{ENV['example']}.rb", "w") do |f|
      f << ["$LOAD_PATH << File.join(File.dirname(__FILE__), '..', 'lib')",
            "require 'prawn'\n",
            "Prawn::Document.generate('#{ENV['example']}.pdf') do\n\nend"].join("\n")
    end
    sh "git add examples/#{ENV['example']}.rb"
  end
end

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