begin
  require 'rubygems/package_task'
rescue LoadError
end

require 'rbconfig'
include\
  begin
    RbConfig
  rescue NameError
    Config
  end

require 'rake/clean'
CLOBBER.include 'doc', 'Gemfile.lock'
CLEAN.include FileList['diagrams/*.*'], 'doc', 'coverage', 'tmp',
  FileList["lib/**/*.{bundle,pdb,lib,manifest,exp,def,dSYM}"]

require 'rake/testtask'
class UndocumentedTestTask < Rake::TestTask
  def desc(*) end
end

which = lambda { |c|
  w = `which #{c}`
  break w.chomp unless w.empty?
}

MAKE   = ENV['MAKE']   || %w[gmake make].find(&which)
BUNDLE = ENV['BUNDLE'] || %w[bundle].find(&which)
PKG_NAME          = 'json'
PKG_TITLE         = 'JSON Implementation for Ruby'
PKG_VERSION       = File.read('VERSION').chomp
PKG_FILES         = FileList[`git ls-files`.split(/\n/)]

RAGEL_CODEGEN     = %w[rlcodegen rlgen-cd ragel].find(&which)
RAGEL_DOTGEN      = %w[rlgen-dot rlgen-cd ragel].find(&which)

desc "Installing library (pure)"
task :install_pure => :version do
  ruby 'install.rb'
end

desc "Installing library (extension)"
task :install_ext => [ :compile, :install_pure ]

desc "Installing library (extension)"
task :install => :install_ext

if defined?(Gem) and defined?(Gem::PackageTask)
  spec_pure = Gem::Specification.new do |s|
    s.name = 'json_pure'
    s.version = PKG_VERSION
    s.summary = PKG_TITLE
    s.description = "This is a JSON implementation in pure Ruby."

    s.files = PKG_FILES

    s.require_path = 'lib'
    s.add_development_dependency 'rake'
    s.add_development_dependency 'test-unit', '~> 2.0'

    s.extra_rdoc_files << 'README.md'
    s.rdoc_options <<
      '--title' <<  'JSON implemention for ruby' << '--main' << 'README.md'
    s.test_files.concat Dir['./tests/test_*.rb']

    s.author = "Florian Frank"
    s.email = "flori@ping.de"
    s.homepage = "http://flori.github.com/#{PKG_NAME}"
    s.license = 'Ruby'
    s.required_ruby_version = '>= 1.9'
  end

  desc 'Creates a json_pure.gemspec file'
  task :gemspec_pure => :version do
    File.open('json_pure.gemspec', 'w') do |gemspec|
      gemspec.write spec_pure.to_ruby
    end
  end

  Gem::PackageTask.new(spec_pure) do |pkg|
      pkg.need_tar = true
      pkg.package_files = PKG_FILES
  end

  spec_ext = Gem::Specification.new do |s|
    s.name = 'json'
    s.version = PKG_VERSION
    s.summary = PKG_TITLE
    s.description = "This is a JSON implementation in pure Ruby."

    s.files = PKG_FILES

    s.require_path = 'lib'
    s.add_development_dependency 'rake'
    s.add_development_dependency 'test-unit', '~> 2.0'

    s.extra_rdoc_files << 'README.md'
    s.rdoc_options <<
      '--title' <<  'JSON implemention for Ruby' << '--main' << 'README.md'
    s.test_files.concat Dir['./tests/test_*.rb']

    s.author = "Florian Frank"
    s.email = "flori@ping.de"
    s.homepage = "http://flori.github.com/#{PKG_NAME}"
    s.license = 'Ruby'
    s.required_ruby_version = '>= 1.9'
  end

  desc 'Creates a json.gemspec file'
  task :gemspec_ext => :version do
    File.open('json.gemspec', 'w') do |gemspec|
      gemspec.write spec_ext.to_ruby
    end
  end

  Gem::PackageTask.new(spec_ext) do |pkg|
    pkg.need_tar      = true
    pkg.package_files = PKG_FILES
  end


  desc 'Create all gemspec files'
  task :gemspec => [ :gemspec_pure, :gemspec_ext ]
end

desc m = "Writing version information for #{PKG_VERSION}"
task :version do
  puts m
  File.open(File.join('lib', 'json', 'version.rb'), 'w') do |v|
    v.puts <<EOT
# frozen_string_literal: false
module JSON
  # JSON version
  VERSION         = '#{PKG_VERSION}'
  VERSION_ARRAY   = VERSION.split(/\\./).map { |x| x.to_i } # :nodoc:
  VERSION_MAJOR   = VERSION_ARRAY[0] # :nodoc:
  VERSION_MINOR   = VERSION_ARRAY[1] # :nodoc:
  VERSION_BUILD   = VERSION_ARRAY[2] # :nodoc:
end
EOT
  end
end

task :check_env do
  ENV.key?('JSON') or fail "JSON env var is required"
end

desc "Testing library (pure ruby)"
task :test_pure => [ :clean, :check_env, :do_test_pure ]

UndocumentedTestTask.new do |t|
  t.name = 'do_test_pure'
  t.libs << 'lib' << 'tests'
  t.test_files = FileList['tests/*_test.rb']
  t.verbose = true
  t.options = '-v'
end

desc "Testing library (pure ruby and extension)"
task :test do
  sh "env JSON=pure #{BUNDLE} exec rake test_pure" or exit 1
  sh "env JSON=ext #{BUNDLE} exec rake test_ext"  or exit 1
end

namespace :gems do
  desc 'Install all development gems'
  task :install do
    sh "#{BUNDLE}"
  end
end

if defined?(RUBY_ENGINE)
  desc "Compiling extension"
  task :compile

  desc "Testing library (extension)"
  task :test_ext => :test_pure

  desc "Update the tags file"
  task :tags do
    system 'ctags', *Dir['**/*.rb']
  end

  desc "Build all gems and archives for a new release of json_pure."
  task :build => [ :clean, :gemspec, :package ]

  task :release => :build
end

desc "Compile in the the source directory"
task :default => [ :clean, :gemspec, :test ]
