//@ copyright
/*
  Copyright 2008 Riccardo Govoni battlehorse@gmail.com

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

//@ organizer

organizer = {};

organizer.MagicCard = function(id, power, element) {
  this.id = id;
  this.power = power;
  this.element = element;
};

//@ model(s)

organizer.models = [
  new organizer.MagicCard("mario-1",  4, ['earth']),
  new organizer.MagicCard("mario-2",  1, ['earth']),
  new organizer.MagicCard("mario-3",  3, ['earth','water']),
  new organizer.MagicCard("mario-4",  2, ['earth','water']),
  new organizer.MagicCard("bekijkt-0",  2, ['earth','water']),
  new organizer.MagicCard("bekijkt-1",  2, ['earth']),
  new organizer.MagicCard("bekijkt-2",  3, ['earth']),
  new organizer.MagicCard("bekijkt-3",  3, ['fire']),
  new organizer.MagicCard("bekijkt-4",  3, ['fire']),
  new organizer.MagicCard("fly-1", 5, ['fire','earth']),
  new organizer.MagicCard("fly-2", 3, ['fire','earth']),
  new organizer.MagicCard("fly-3", 5, ['fire','earth']),
  new organizer.MagicCard("fly-4", 1, ['fire','earth']),
  new organizer.MagicCard("fly-5", 1, ['fire','air']),
  new organizer.MagicCard("fly-6", 1, ['fire','air']),
  new organizer.MagicCard("splinter-1", 4, ['fire','air']),
  new organizer.MagicCard("splinter-2", 3, ['fire']),
  new organizer.MagicCard("unreal-1", 3, ['water']),
  new organizer.MagicCard("unreal-2", 2, ['water']),
  new organizer.MagicCard("unreal-3", 1, ['water']),
  new organizer.MagicCard("unreal-4", 2, ['water','air']),
  new organizer.MagicCard("unreal-5", 2, ['water','air']),
  new organizer.MagicCard("unreal-6", 2, ['water','air']),
  new organizer.MagicCard("unreal-7", 5, ['water','air']),
  new organizer.MagicCard("unreal-8", 3, ['water','air']),
  new organizer.MagicCard("unreal-9", 3, ['water']),
  new organizer.MagicCard("unreal-10", 4, ['water']),
  new organizer.MagicCard("unreal-11", 5, ['water']),
  new organizer.MagicCard("unreal-12", 5, ['air']),
  new organizer.MagicCard("unreal-13", 1, ['air']),
  new organizer.MagicCard("unreal-14", 1, ['air']),
  new organizer.MagicCard("unreal-15", 1, ['air']),
  new organizer.MagicCard("unreal-16", 4, ['air']),
  new organizer.MagicCard("unreal-17", 5, ['air']),
  new organizer.MagicCard("unreal-18", 5, ['air','fire']),
  new organizer.MagicCard("unreal-19", 3, ['air','fire']),
  new organizer.MagicCard("game-1-tekken-5", 1, ['air','fire']),
  new organizer.MagicCard("game-2-sims-2", 2, ['air','fire']),
  new organizer.MagicCard("game-4-super-monkey", 4, ['air']),
  new organizer.MagicCard("mario-1", 5, ['air'])
];

//@ render -- watch dir(s) 
organizer.render = function(model) {
  var html = [];
  html.push("<div class='model'><div style='padding: 3px'>");
  html.push("<p style='font-size:10px'>");
  html.push("<img src='local/screens/game/" + model.id + ".jpg' width='85px' height='122px' >");
  html.push("</p></div></div>");
  return $(html.join(''));
};

//@ selection manager

organizer.SelectionManager = function() {
  this.selectionMap_ = {};
};

organizer.SelectionManager.prototype.select = function(id) {
  this.selectionMap_[id] = id;
  $('#' + id).addClass('ui-selected');
};

organizer.SelectionManager.prototype.unselect = function(id) {
  delete this.selectionMap_[id];
  $('#' + id).removeClass('ui-selected');
};    

//@ selection manager (ctnd)

organizer.SelectionManager.prototype.isSelected = function(id) {
  return this.selectionMap_[id];
};        

organizer.SelectionManager.prototype.allSelected = function() {
  return this.selectionMap_;
};
$sel = new organizer.SelectionManager();

//@ start

organizer.start = function() {
  organizer.createModels();
  
  organizer.initDragSelection();
  
  organizer.initZooming();
  
  organizer.initPanning();
  
  organizer.initShuffleButton();
};

//@ create model(s0

organizer.createModels = function() {
  jQuery.map(organizer.models, function(model) {
    var rendering = organizer.render(model);

    // initial positioning in the DOM and layout
    $(rendering).css("position", "absolute")
                .css("top", 0)
                .css("left", 0)
                .attr("id", model.id);

    $("#universe").append(rendering);    
  })
};
//@ init drag

organizer.initDragSelection = function() {
  $('.model').dblclick(function() {
    if ($sel.isSelected(this.id)) {
      $sel.unselect(this.id);
    } else {
      $sel.select(this.id);
    }
  });      

//@ selection(s)
  
  $('#container').selectable({
    selected: function(ev, ui) {
      if (ui.selected.id) {
        $sel.select(ui.selected.id);
      }
    },
    unselected: function(ev, ui) {
      if (ui.unselected.id) {
        $sel.unselect(ui.unselected.id);
      }
    },
    filter: '.model'
  });
  
//@ draggable / style(s)
  $('.model').draggable({
    opacity: 0.5,
    cursor: 'move',
    zIndex: 10000,
    start: function(ev, ui) {

//@ initial position(s)
      // figure out all the initial positions for the selected elements
      // and store them.
      if ($sel.isSelected(ui.helper[0].id)) {
        for (id in $sel.allSelected()) {
          $('#'+id).data(
            "top0", 
            parseInt($('#'+id).css("top"),10) - 
              parseInt($(ui.helper[0]).css("top"),10));
          $('#'+id).data(
            "left0", 
            parseInt($('#'+id).css("left"),10) - 
              parseInt($(ui.helper[0]).css("left"),10));
        }
      }
    },
//@ function drag
    drag: function(ev, ui) {
      if ($sel.isSelected(ui.helper[0].id)) {
        for (id in $sel.allSelected()) {
          if (id != ui.helper[0].id) {
            $('#' + id).css('top',
                            $('#'+id).data("top0") + ui.position.top);
            $('#' + id).css('left', 
                            $('#'+id).data("left0") + ui.position.left);              
          }
        }
      }
    },
//@ function step
    stop: function(ev, ui) {
      if ($sel.isSelected(ui.helper[0].id)) {
        for (id in $sel.allSelected()) {
         $('#'+id).removeData("top0");
         $('#'+id).removeData("left0");
        }
      }        
    }
  });  
};
//@ init zooming
organizer.initZooming = function() {
  $('#container').mousewheel(function(event, delta) {
   
    var containerTopOffset = parseFloat($('#universe').css('top'));
    var containerLeftOffset = parseFloat($('#universe').css('left'));
    var scale = 0.1;
    var percent = 1 + delta*scale;        
//@ rescale
    $('.model').each(function() {
      organizer.rescaleRelative(this, 
        'top', 
          event.clientY - 
          containerTopOffset - 
          parseFloat($(this).css('height')) / 2,
        percent);
      organizer.rescaleRelative(this, 
        'left', 
          event.clientX - 
          containerLeftOffset - 
          parseFloat($(this).css('width')) / 2, 
        percent);          
      
      organizer.rescale(this, 'width', percent);
      organizer.rescale(this, 'height', percent);
      organizer.rescale(this, 'font-size', percent);
    });
    
//@ all images
    $('.model IMG').each(function() {
      organizer.rescale(this, 'width', percent);
      organizer.rescale(this, 'height', percent);      
    });
    event.preventDefault();
  });  
};

//@ rescale function
organizer.rescale = function(selector, property, percent) {
  var oldValue = parseFloat($(selector).css(property));
  $(selector).css(property, oldValue*percent);
};

organizer.rescaleRelative = function(selector, property, relative, percent) {
  var oldValue = parseFloat($(selector).css(property)) - relative;
  $(selector).css(property, oldValue*percent + relative);      
};

//@ init panning
organizer.initPanning = function() {
  var dragDelta = {
    top: $('#container').offset().top +
         $('#universe').offset().top,
    left: $('#container').offset().left +
          $('#universe').offset().left,
  };
//@ scroll trigger

  $('#scroll-trigger').click(function() {
    $(this).hide();
    var viewport = $('#container');
    $('#scroll-overlay')
      .css('left', viewport.css('left'))
      .css('top', viewport.css('top'))
      .css('width', viewport.width())
      .css('height', viewport.height())
      .css('z-index', 99)
      .css('display', '');

//@ overlay
    $('#scroll-overlay').draggable({
      helper: function() {
        return $("<div />");
      },
      start: function(ev, ui) {
        var offset = $('#universe').offset();
        $('#universe')
          .data("top0", offset.top)
          .data("left0", offset.left);
      },
//@ overlay drag
      drag: function(ev, ui) {
        var universe = $('#universe');
        var offset = universe.offset();

        var dragTop = ui.position.top +
                      universe.data("top0") - dragDelta.top;
        var dragLeft = ui.position.left +
                       universe.data("left0") - dragDelta.left;

        $('#universe')
          .css('top', dragTop).css('bottom', -dragTop)
          .css('left', dragLeft).css('right', -dragLeft);
      },
      refreshPositions: false
    });
  });

//@ click done
  $('#scroll-done').click(function() {
    $('#scroll-overlay')
      .css('z-index', -1)
      .css('display', 'none');
    $('#scroll-trigger').show();
  });  
};

//@ shuffle button
organizer.initShuffleButton = function() {
  $('#shuffleCards').click(function() {
    // reset panning
    $('#universe').css('top', 0).css('left', 0).css('bottom', 0).css('right', 0);

    var maxWidth = Math.round($('#container').width()*0.3) ;
    var maxHeight = Math.round($('#container').height()*0.3);

//@ model  propagate
    $('.model').each(function(model) {
      var top = Math.round($('#container').height() / 3 +
                           Math.random()*maxHeight*2 - maxHeight);
      var left = Math.round($('#container').width() / 3 +
                            Math.random()*maxWidth*2 - maxWidth);

      var movement = {'top': top, 'left': left};
      $(this).animate(movement, 1000);
    });    
  })
};