require 'rubygems'
require 'rake'

begin
  require 'jeweler'
  Jeweler::Tasks.new do |gem|
    gem.name        = "webidl"
    gem.summary     = %Q{WebIDL parser/generator for ruby}
    gem.description = %Q{Built on Treetop, this gem will parse an interface declaration in WebIDL and generate ruby code}
    gem.email       = "jari.bakken@gmail.com"
    gem.homepage    = "http://github.com/jarib/webidl"
    gem.authors     = ["Jari Bakken"]
    gem.bindir      = "bin"

    gem.add_dependency "treetop"
    gem.add_dependency "ruby2ruby"
    gem.add_development_dependency "rspec"
  end
  
  Jeweler::GemcutterTasks.new
rescue LoadError
  puts "Jeweler (or a dependency) not available. Install it with: sudo gem install jeweler"
end

require 'spec/rake/spectask'
Spec::Rake::SpecTask.new(:spec) do |spec|
  spec.libs << 'lib' << 'spec'
  spec.spec_files = FileList['spec/**/*_spec.rb']
end

Spec::Rake::SpecTask.new(:rcov) do |spec|
  spec.libs << 'lib' << 'spec'
  spec.pattern   = 'spec/**/*_spec.rb'
  spec.rcov      = true
  spec.rcov_opts = %w[--exclude spec,ruby-debug,/Library/Ruby,.gem --include lib/webidl]
end

namespace :parser do

  desc "Compile the parser"
  task :compile do
    require 'treetop'
    compiler = Treetop::Compiler::GrammarCompiler.new
    treetop_dir = File.expand_path(File.join(File.dirname(__FILE__), "lib", "webidl", "parser"))
    Dir[File.join(treetop_dir, "*.{tt,treetop}")].each do |treetop_file_path|
      compiler.compile(treetop_file_path)
    end
  end
end

namespace :webidl do
  WEBIDL_URL = "http://dev.w3.org/2006/webapi/WebIDL/"
  HTML5_URL = "http://www.whatwg.org/specs/web-apps/current-work/"

  desc "Download the webidl spec to support/"
  task :download do
    require 'open-uri'
    spec_file = "support/webidl-spec-#{Time.now.strftime "%Y-%m-%d"}.html"
    size = 0

    File.open(spec_file, "w") do |file|
      file << data = open(SPEC_URL).read
      size = data.bytesize
    end

    puts "#{SPEC_URL} => #{spec_file} (#{size} bytes)"
  end

  desc "Download and extract HTML5 IDL parts to spec/fixtures"
  task :html5 do
    require 'open-uri'
    require 'nokogiri'

    idl_file = "spec/fixtures/html5.idl"
    size = 0

    File.open(idl_file, "w") do |file|
      file << data = Nokogiri.HTML(open(HTML5_URL)).css("pre.idl").map { |e| e.inner_text }.join("\n\n")
      size = data.bytesize
    end

    puts "#{HTML5_URL} => #{idl_file} (#{size} bytes)"
  end

end

task :spec => :check_dependencies

task :default => :spec

begin
  require 'yard'
  YARD::Rake::YardocTask.new
rescue LoadError
  task :yardoc do
    abort "YARD is not available. In order to run yardoc, you must: sudo gem install yard"
  end
end