#!/usr/bin/env ruby
=begin

TESTR 1 "2012-01-13" "14.1.3"
=============================

NAME
----

testr - Continuous testing tool for Ruby

SYNOPSIS
--------

`testr` [*OPTION*]...

DESCRIPTION
-----------

This program is a simple command-line user interface for testr-driver(1).  It
demonstrates how the components of TestR work together and also serves as an
example of how you can create your own TestR user interface.

When run, it presents you with a menu of single-character commands that you
can enter, loads the test execution overhead into testr-master(1), and
finally notifies you when the master is ready to run test files.

It also launches testr-herald(1) alongside testr-master(1).  When the herald
reports a modified file that belongs to the test execution overhead, this
program notifies you accordingly and then replaces the current master with a
new one that will absorb the modified test execution overhead into itself.

OPTIONS
-------

`-h`, `--help`
  Display this help manual using man(1).

SEE ALSO
--------

testr(1), testr-driver(1), testr-master(1), testr-herald(1)

=end =========================================================================

$0 = File.basename(__FILE__)

require 'binman'
BinMan.help

require 'json'
require 'testr/client'

@driver = TestR::Client::Transceiver.new('testr-driver') do |line|
  evstr, *details = JSON.load(line)
  event = evstr.to_sym

  case event
  when :load then warn 'testr: Overhead absorbed. Ready for testing!'
  when :over then warn 'testr: Reabsorbing changed overhead files...'
  else
    test_file, test_names, *details = details
    message = [evstr.upcase, test_file, test_names.inspect, details].join(' ')

    color = case event
            when :pass then "\e[34m%s\e[0m" # blue
            when :fail then "\e[31m%s\e[0m" # red
            end
    message = color % message if color and STDOUT.tty?
    message = [message, File.read(test_file + '.log'), message] if event == :fail

    puts message
  end
end

COMMANDS = {
  'r' => :run_all_test_files,
  's' => :stop_running_test_files,
  'p' => :rerun_passed_test_files,
  'f' => :rerun_failed_test_files,
  'o' => :reabsorb_overhead_files,
  'q' => :quit,
}

def COMMANDS.show
  each do |key, cmd|
    warn "testr: Type #{key} then ENTER to #{cmd.to_s.tr('_', ' ')}."
  end
end

COMMANDS.show # instruct newbies

while key = STDIN.gets.chomp
  if command = COMMANDS[key]
    if command == :quit
      @driver.quit
      break
    else
      @driver.send [command]
    end
  else
    COMMANDS.show
  end
end

Process.waitall