#!/usr/bin/env ruby
require 'rubygems'
require 'optparse'
require "ostruct"
if RUBY_VERSION < "1.9"
  require 'ruby-debug-ide'
else
  require_relative '../lib/ruby-debug-ide'
end

$stdout.sync=true

options = OpenStruct.new(
    'frame_bind'  => false,
    'host'        => nil,
    'load_mode'   => false,
    'port'        => 1234,
    'stop'        => false,
    'tracing'     => false,
    'int_handler' => true,
    'dispatcher_port' => -1,
    'evaluation_timeout' => 10,
    'trace_to_s' => false,
    'debugger_memory_limit' => 10,
    'inspect_time_limit' => 100,
    'rm_protocol_extensions' => false,
    'catchpoint_deleted_event' => false,
    'value_as_nested_element' => false,
    'attach_mode' => false,
    'cli_debug' => false
)

opts = OptionParser.new do |opts|
  opts.banner = <<EOB
Using ruby-debug-base #{Debugger::VERSION}
Usage: rdebug-ide is supposed to be called from RDT, NetBeans, RubyMine, or
       the IntelliJ IDEA Ruby plugin.  The command line interface to
       ruby-debug is rdebug.
EOB
  opts.separator ""
  opts.separator "Options:"

  opts.on("-h", "--host HOST", "Host name used for remote debugging") {|host| options.host = host}
  opts.on("-p", "--port PORT", Integer, "Port used for remote debugging") {|port| options.port = port}
  opts.on("--dispatcher-port PORT", Integer, "Port used for multi-process debugging dispatcher") do |dp|
    options.dispatcher_port = dp
  end
  opts.on('--evaluation-timeout TIMEOUT', Integer,'evaluation timeout in seconds (default: 10)') do |timeout|
    options.evaluation_timeout = timeout
  end
  opts.on("--evaluation-control", "trace to_s evaluation") {options.trace_to_s = true}

  opts.on("-m", "--memory-limit LIMIT", Integer, "evaluation memory limit in mb (default: 10)") do |limit|
    if defined?(JRUBY_VERSION) || RUBY_VERSION < '2.0'
      $stderr.puts "Evaluation memory limit is ineffective in JRuby and MRI < 2.0"
      limit = 0
    end
    options.debugger_memory_limit = limit
    options.trace_to_s ||= limit > 0
  end

  opts.on("-t", "--time-limit LIMIT", Integer, "evaluation time limit in milliseconds (default: 100)") do |limit|
    options.inspect_time_limit = limit
    options.trace_to_s ||= limit > 0
  end

  opts.on('--stop', 'stop when the script is loaded') {options.stop = true}
  opts.on("-x", "--trace", "turn on line tracing") {options.tracing = true}
  opts.on("-l", "--load-mode", "load mode (experimental)") {options.load_mode = true}
  opts.on("-d", "--debug", "Debug self - prints information for debugging ruby-debug itself") do
    Debugger.cli_debug = true
    options.cli_debug = true
  end
  opts.on("--xml-debug", "Debug self - sends information <message>s for debugging ruby-debug itself") do
    Debugger.xml_debug = true
  end
  opts.on("-I", "--include PATH", String, "Add PATH to $LOAD_PATH") do |path|
    $LOAD_PATH.unshift(path)
  end
  opts.on("--attach-mode", "Tells that rdebug-ide is working in attach mode") do
    options.attach_mode = true
  end
  opts.on("--ignore-port", "Generate another port") do
    options.ignore_port = true
  end
  opts.on("--keep-frame-binding", "Keep frame bindings") {options.frame_bind = true}
  opts.on("--disable-int-handler", "Disables interrupt signal handler") {options.int_handler = false}
  opts.on("--rubymine-protocol-extensions", "Enable all RubyMine-specific incompatible protocol extensions") do
    options.rm_protocol_extensions = true
  end
  opts.on("--catchpoint-deleted-event", "Enable chatchpointDeleted event") do
    options.catchpoint_deleted_event = true
  end
  opts.on("--value-as-nested-element", "Allow to pass variable's value as nested element instead of attribute") do
    options.value_as_nested_element = true
  end
  opts.separator ""
  opts.separator "Common options:"
  opts.on_tail("-v", "--version", "Show version") do
    puts "Using ruby-debug-base #{Debugger::VERSION}"
    exit
  end
end

begin
  Debugger::ARGV = ARGV.clone
  rdebug_path = File.expand_path($0)
  if RUBY_PLATFORM =~ /mswin/
    rdebug_path += ".cmd" unless rdebug_path =~ /\.cmd$/i
  end
  Debugger::RDEBUG_SCRIPT = rdebug_path
  opts.parse! ARGV
rescue StandardError => e
  puts opts
  puts
  puts e.message
  exit(1)
end

if ARGV.empty? && !options.attach_mode
  puts opts
  puts
  puts "Must specify a script to run"
  exit(1)
end

# save script name
if !options.attach_mode
  Debugger::PROG_SCRIPT = ARGV.shift
else
  Debugger::PROG_SCRIPT = $0
end

if options.dispatcher_port != -1
  ENV['IDE_PROCESS_DISPATCHER'] = options.dispatcher_port.to_s
  if RUBY_VERSION < "1.9"
    lib_path = File.expand_path(File.dirname(__FILE__) + "/../lib/")
    $: << lib_path unless $:.include? lib_path
    require 'ruby-debug-ide/multiprocess'
  else
    require_relative '../lib/ruby-debug-ide/multiprocess'
  end
  Debugger::MultiProcess.do_monkey

  ENV['DEBUGGER_STORED_RUBYLIB'] = ENV['RUBYLIB']
  old_opts = ENV['RUBYOPT'] || ''
  starter = "-r#{File.expand_path(File.dirname(__FILE__))}/../lib/ruby-debug-ide/multiprocess/starter"
  unless old_opts.include? starter
    ENV['RUBYOPT'] = starter
    ENV['RUBYOPT'] += " #{old_opts}" if old_opts != ''
  end
  ENV['DEBUGGER_CLI_DEBUG'] = Debugger.cli_debug.to_s
end

if options.int_handler
  # install interruption handler
  trap('INT') { Debugger.interrupt_last }
end

# set options
Debugger.keep_frame_binding = options.frame_bind
Debugger.tracing = options.tracing
Debugger.evaluation_timeout = options.evaluation_timeout
Debugger.trace_to_s = options.trace_to_s && (options.debugger_memory_limit > 0 || options.inspect_time_limit > 0)
Debugger.debugger_memory_limit = options.debugger_memory_limit
Debugger.inspect_time_limit = options.inspect_time_limit
Debugger.catchpoint_deleted_event = options.catchpoint_deleted_event || options.rm_protocol_extensions
Debugger.value_as_nested_element = options.value_as_nested_element || options.rm_protocol_extensions

if options.attach_mode
  if Debugger::FRONT_END == "debase"
    Debugger.init_variables
  end

  Debugger::MultiProcess::pre_child(options)

  if Debugger::FRONT_END == "debase"
    Debugger.setup_tracepoints
    Debugger.prepare_context
  end
else
  Debugger.debug_program(options)
end