#!/usr/bin/env ruby
begin
  require "juicer/merger/javascript_merger"
rescue LoadError => err
  puts "Install juicer ruby gem to build Sinon.JS. Try `gem install juicer`."
  if !defined?(Gem)
    puts "RubyGems is not loaded. Perhaps that is why juicer can not be found?"
  end
  exit
end

require "fileutils"
require "pathname"

def add_license(file, version)
  contents = File.read(file)

  File.open(file, "w") do |f|
    f.puts <<PREAMBLE
/**
 * Sinon.JS #{version}, #{Time.now.strftime("%Y/%m/%d")}
 *
 * @author Christian Johansen (christian@cjohansen.no)
 * @author Contributors: https://github.com/cjohansen/Sinon.JS/blob/master/AUTHORS
 *
 * #{File.read("LICENSE").split("\n").join("\n * ")}
 */

PREAMBLE

    contents = contents.gsub("\"use strict\";\n", "")
    declaration = "var sinon = (function () {"
    f.puts(contents.sub(declaration, "#{declaration}\n\"use strict\";\n"))
  end
end

def add_deps(file)
  if !File.exists?("./node_modules/formatio")
    puts <<-MSG
formatio not found, skipping. To build with formatio support:
    npm install formatio
    MSG
    return file
  end

  contents = File.read(file)

  File.open(file, "w") do |f|
    f.puts("(function (root, factory) {")
    f.puts("  'use strict';");
    f.puts("  if (typeof define === 'function' && define.amd) {")
    f.puts("    define('sinon', [], function () {")
    f.puts("      return (root.sinon = factory());")
    f.puts("    });")
    f.puts("  } else if (typeof exports === 'object') {")
    f.puts("    module.exports = factory();")
    f.puts("  } else {")
    f.puts("    root.sinon = factory();")
    f.puts("  }")
    f.puts("}(this, function () {")
    f.puts("  'use strict';");
    f.puts("  var samsam, formatio, lolex;")
    f.puts("  (function () {")
    f.puts(<<EOF)
                function define(mod, deps, fn) {
                  if (mod == "samsam") {
                    samsam = deps();
                  } else if (typeof deps === "function" && mod.length === 0) {
                    lolex = deps();
                  } else if (typeof fn === "function") {
                    formatio = fn(samsam);
                  }
                }
EOF
    f.puts("    define.amd = {};")
    f.puts(File.read("./node_modules/samsam/lib/samsam.js"))
    f.puts(File.read("./node_modules/formatio/lib/formatio.js"))
    f.puts(File.read("./node_modules/lolex/lolex.js"))
    f.puts("  })();")
    # mask the real define from the code so that it doesn't use it internally
    f.puts("  var define;")
    f.puts(contents)
    f.puts("  return sinon;")
    f.puts("}));")
    end

  file
end

Dir.chdir(File.dirname(__FILE__)) do
  version = File.read("package.json").match(/"version":\s+"(.*)"/)[1]
  version_string = ARGV[0] == "plain" ? "" : "-#{version}"
  output = "pkg/sinon#{version_string}.js"

  FileUtils.mkdir("pkg") unless File.exists?("pkg")
  merger = Juicer::Merger::JavaScriptMerger.new
  merger << "lib/sinon/test_case.js"
  merger << "lib/sinon/assert.js"
  merger << "lib/sinon/util/fake_xdomain_request.js"
  merger.save(output)
  add_license(add_deps(output), version)

  File.open("pkg/sinon-ie#{version_string}.js", "w") do |f|
    f.puts(File.read("lib/sinon/util/timers_ie.js"))
    f.puts("\n")
    f.puts(File.read("lib/sinon/util/xhr_ie.js"))
    f.puts(File.read("lib/sinon/util/xdr_ie.js"))
  end

  add_license("pkg/sinon-ie#{version_string}.js", version)

  FileUtils.cp("lib/sinon/util/fake_timers.js", "pkg/sinon-timers#{version_string}.js")
  add_license("pkg/sinon-timers#{version_string}.js", version)
  FileUtils.cp("lib/sinon/util/timers_ie.js", "pkg/sinon-timers-ie#{version_string}.js")
  add_license("pkg/sinon-timers-ie#{version_string}.js", version)

  merger = Juicer::Merger::JavaScriptMerger.new
  merger << "lib/sinon/util/fake_server_with_clock.js"
  merger.save("pkg/sinon-server#{version_string}.js")
  add_license("pkg/sinon-server#{version_string}.js", version)
  FileUtils.cp(output, 'pkg/sinon.js')
  FileUtils.cp("pkg/sinon-ie#{version_string}.js", 'pkg/sinon-ie.js')

  puts "Built Sinon.JS #{version}"
end