jQuery(function($) {
  // Keyboard keys that press buttons
  // For qwerty, use:
  //   var keyboard = '1234567890QWERTYIOPASDFGHJKL;ZXCVBN'
  var keyboard = '1234567890AZERTYUIOPQSDFGHJKLMWXCVBN'

  // Assign a class temporarily to an item (defaults to 200ms)
  $.fn.temporaryClass = function(className, time) {
    var that = $(this)
    that.addClass(className)
    setTimeout(function() { that.removeClass(className) }, time || 200)
    return that
  }

  // Keydown that disregards keys pressed with control or command
  // and adds the keyString to the event
  $.fn.singleKeyDown = function(callback) {
    function keyString(code) {
      if (code >= 96 && code <= 105)
        return parseInt(code - 96)
      switch (code) {
        case 27: return 'escape'
        default: return String.fromCharCode(code)
      }
    }
    return $(this).keydown(function(e) {
      if (!e.ctrlKey && !e.metaKey) {
        e.keyString = keyString(e.keyCode)
        return callback.call(this, e)
      }
    })
  }

  $(document).ready(function() {
    // Actions happen when audio plays
    $('audio').live('dataunavailable', function() { $(this).parent().addClass('dataunavailable') })
              .live('ended', function() { $(this).parent().removeClass('playing') })
              .live('pause', function() { $(this).parent().removeClass('playing') })
              .live('timeupdate', function() { $(this).parent().addClass('playing') })
              .live('play', function() { $(this).parent().addClass('playing') })
              .live('error', function() { $(this).parent().addClass('error') })

              // new audio event to simplify restarting
              .live('restart', function() {
                if (this.currentTime)
                  this.currentTime = 0
                this.play()
              })

    // Show the keyboard keys to press
    $('button').each(function(i) {
      if (i < keyboard.length)
        $(this).append('<span>' + keyboard[i] + '</span>')
    })

    // Clicking a button starts audio
    .live('click', function() {
      $(this).temporaryClass('active')
             .children('audio').trigger('restart')
    })

    $(document).singleKeyDown(function(e) {
      // Escape pauses
      if (e.keyString === 'escape') {
        $('audio').each(function() { this.pause() })
        return
      }

      // Keyboard presses buttons
      var number = keyboard.indexOf(e.keyString)
      if (number != -1)
        $('button').eq(number).click()

    })
  })

})