// Copyright ©2009 Aaron Vanderzwan
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.



(function($) {
// The maxImages plugin resizes an image dynamically, according to the width of the browser.
jQuery.fn.maxImage = function(options) {

  // var opts = $.extend({}, $.fn.maxImage.defaults, options);
  var opts = jQuery.extend({
    wait:                 true,
    imageArray:           [],
    maxFollows:           'both',  // Options: width, height, both
    verticalOffset:       0,
    horizontalOffset:     0,
    leftSpace:            0,
    topSpace:             0,
    rightSpace:           0,
    bottomSpace:          0,
    position:             'absolute',
    isBackground:         false,
    zIndex:               -10,
    verticalAlign:        'bottom',
    horizontalAlign:      'left',
    maxAtOrigImageSize:   false,
    slideShow:            false,
    slideDelay:           5,
    slideShowTitle:       true,
    loaderClass:          'loader'
  }, options);
  
  // Cache jQuery object
  var jQueryMatchedObj = this;
  
  function _initialize() {
    _start(this,jQueryMatchedObj);
    return false;
  }
  
  function _start(image,jQueryMatchedObj) {
    if( opts.slideShow ){
      _setup_slideshow(jQueryMatchedObj);
    } else if ( opts.isBackground ){
      Background._setup_background(image);
    } else {
      Others._setup_others(image,opts);
    }
  }
  
  Others = {
    _setup_others: function(image,opts){
      $this = $(image);
      
      $(window).load(function(){
        _get_orig_data($this);
        _size_image($this);
        Others._configure_css(image,opts);
        
        $(window).resize(function(){
          _size_image($this);
        });
      });
    },
    _configure_css: function(image,opts){
      if(opts.position == 'absolute') {
        $(image).css({
          'overflow':   'hidden',
          'left':       opts.leftSpace,
          'top':        opts.topSpace,
          'position':   'absolute'
        });
        
        if(opts.verticalAlign == 'bottom'){
          $(image).css({'bottom':opts.bottomSpace});
        }
        if(opts.horizontalAlign == 'right'){
          $(image).css({'right':opts.rightSpace});
        }
      } else {
        $(image).css({
          'margin-top':     opts.topSpace,
          'margin-right':   opts.rightSpace,
          'margin-bottom':  opts.bottomSpace,
          'margin-left':    opts.leftSpace,
          'position':       'relative'
        });
      }
    }
  }
  
  Background = {
    _setup_background: function(image){
      $this = $(image);
      $this.hide();
      
      Background._configure_css(image);
      $(window).load(function(){
        _get_orig_data($this);
        _size_image($this);
        $this.show();
        $(window).resize(function(){
		  _size_image($this)
		  var y=setTimeout(function(){_size_image($this)},10);
        });
      });
      
    },
    _configure_css: function(image){
      // If position is set to absolute (or if isBackground)
      $(image).css({
        'z-index':  opts.zIndex
      });
      if(opts.position == 'absolute') {
        $(image).css({
          'overflow':   'hidden',
          'left':       opts.leftSpace,
          'top':        opts.topSpace,
          'position':   'absolute'
        });
        
       // $('html').css({'overflow':'hidden'});
        
        if(opts.verticalAlign == 'bottom'){
          $(image).css({'bottom':opts.bottomSpace});
        }
        if(opts.horizontalAlign == 'right'){
          $(image).css({'right':opts.rightSpace});
        }
      } else {
        $(image).css({
          'margin-top':     opts.topSpace,
          'margin-right':   opts.rightSpace,
          'margin-bottom':  opts.bottomSpace,
          'margin-left':    opts.leftSpace,
          'position':       'relative'
        });
      }
    }
  }
  
  
  // SLIDESHOW FUNCTIONS
  function _setup_slideshow (jQueryMatchedObj){
    _build_slideshow_structure(jQueryMatchedObj);
    
    opts.imageArray.length = 0;

    if( jQueryMatchedObj.length == 1){
      opts.imageArray.push(new Array(objClicked.getAttribute('src'),objClicked.getAttribute('title')));
    } else {  
      for ( var i = 0; i < jQueryMatchedObj.length; i++ ) {
        opts.imageArray.push(new Array(jQueryMatchedObj[i].getAttribute('src'),jQueryMatchedObj[i].getAttribute('title')));
        $(jQueryMatchedObj[i]).attr('original',$(jQueryMatchedObj[i]).attr('src')).attr('src','');
      }
    }
    _loads_image(0);
  }
    
  function _build_slideshow_structure() {
    for ( var i = 0; i < jQueryMatchedObj.length; i++ ) {
      $(jQueryMatchedObj[i]).addClass('slides slide-'+i).after('<div class="slideTitle">'+$(jQueryMatchedObj[i]).attr('title')+'</div>');
    }
    $('.slideTitle').hide().css({
      'padding':'10px',
      'background':'#e0e0e0',
      'position':'absolute',
      'bottom':'0',
      'right':'5%',
      'opacity':'0.8'
    });
  }
  
  
  function _loads_image(nums){
    
    var currentImage = nums;
    
    var objImagePreloader = new Image();
    objImagePreloader.onload = function() {
      $('.slide-'+currentImage).attr('src',opts.imageArray[currentImage][0]);
      _get_orig_data($('.slide-'+currentImage));
      _size_image($('.slide-'+currentImage));
      
      $(window).resize(function(){
        _size_image($('.slide-'+currentImage));
      });
      
      if(currentImage==0){
        _start_timer();
      }
      
      if(currentImage < opts.imageArray.length-1){
        currentImage++;
        _loads_image(currentImage);
      }
      
    }
    objImagePreloader.src = opts.imageArray[currentImage][0];
  }
  
  function _start_timer() {
    var currentSlide = 0;
    
    _configure_css();
    
    // Hide the loading graphic
    $('.'+opts.loaderClass).hide();
    
    // Fade in first image
    $('.slide-'+currentSlide).css({'z-index':opts.zIndex}).fadeIn();
    
    // If user wants to show titles, use this option
    if(opts.slideShowTitle){
      $('.slide-'+currentSlide).next('.slideTitle').css({'z-index':opts.zIndex+1}).fadeIn();
    }
    
    // Start timer for slideshow
    var slideInterval = setInterval(function(){
      if(currentSlide < opts.imageArray.length-1){
        currentSlide++;
        lastSlide = currentSlide-1;
      } else {
        currentSlide=0;
        lastSlide = opts.imageArray.length-1;
      }

      $('.slide-'+lastSlide).css({'z-index':opts.zIndex-1}).fadeOut('slow');
      $('.slide-'+currentSlide).css({'z-index':opts.zIndex}).fadeIn('slow');
      if(opts.slideShowTitle){
        next_title(currentSlide,lastSlide);
      }
    }, (opts.slideDelay*1000));
  }
  
  function _configure_css(){
    for(i=0;i<opts.imageArray.length;i++){
      // Style the slide
      if(opts.position == 'absolute') {
        $('.slide-'+i).css({
          'left':       opts.leftSpace,
          'top':        opts.topSpace,
          'position':   'absolute',
          'overflow':   'hidden'
        });
        
        //$('html').css({'overflow':'hidden'});
        
        if(opts.verticalAlign == 'bottom'){
          $('.slide-'+i).css({'bottom':opts.bottomSpace});
        }
        if(opts.horizontalAlign == 'right'){
          $('.slide-'+i).css({'right':opts.rightSpace});
        }
      } else {
        $('.slide-'+i).css({
          'margin-top':     opts.topSpace,
          'margin-right':   opts.rightSpace,
          'margin-bottom':  opts.bottomSpace,
          'margin-left':    opts.leftSpace,
          'position':       'relative'
        });
      }
      
      
      // Style the title
      $('.slide-'+i).next('.slideTitle').css({
        'position':'absolute',
        'bottom':0,
        'right':'5%'
      });
    }
  }
  
  
  function next_title(currentSlide,lastSlide){
    $('.slide-'+lastSlide).next('.slideTitle').fadeOut();
    $('.slide-'+currentSlide).next('.slideTitle').fadeIn();
  }
  
  
  // BROAD FUNCTIONS - FOR EACH SECTION
  function _get_orig_data(image){
    $this = image;
    
    $this.attr('origWidth', $this.width());
    $this.attr('origHeight', $this.height());
    $this.attr('ratio', find_ratio($this.width(),$this.height()));
  }
  
  function _size_image(image){
    $this = image;
    
	$('div.main_menu').css({'height':($('div.main_menu').css('min-height'))});
		
		
		
		
		
	 var borderSize=to_i($('div.border').width());
	 var borderSizeMR=to_i($('div.border').css('margin-right'));
	 var borderSizeML=to_i($('div.border').css('margin-left'));
	 var vajadzigaisWidth=borderSize + borderSizeMR + borderSizeML;
	
	 
	 
	 var rootSizeH=to_i($('div.root').height());
	 var mainMenuSizeH=to_i($('div.main_menu').height());
	 var mainMenuSizeHMT=to_i($('div.main_menu').css('padding-top'));
	 mainMenuSizeH=mainMenuSizeH+mainMenuSizeHMT;
	 var vajadzigaisHeight=rootSizeH;
	 
	 if(mainMenuSizeH > vajadzigaisHeight )
	 {
		 vajadzigaisHeight=mainMenuSizeH;
	 }
		
	var pageWidth = $(window).width() ;
    var pageHeight = $(window).height() ;
	
	//alert(pageWidth + '--' + vajadzigaisWidth);
	if(pageWidth >vajadzigaisWidth)
	{
		vajadzigaisWidth=	pageWidth;
	}
	if(pageHeight > vajadzigaisHeight)
	{
		vajadzigaisHeight=pageHeight;
	}
	//console.log(vajadzigaisHeight);
	
	

	
	
	$('div.bg').css({'width': vajadzigaisWidth+'px','height': vajadzigaisHeight+'px'}); 
	  
	//  alert(vajadzigaisWidth + ' -> ' +  $('div.bg').width() + ' -> ' + $(window).width());
	  
	if(mainMenuSizeH < pageHeight )
	{
		var kastadnu=pageHeight-to_i($('div.main_menu').css('padding-top'));
		$('div.main_menu').css({'height':kastadnu + 'px'});
		//console.log(kastadnu);
		//console.log($('div.main_menu').css('min-height'));
	}
		
		
		
		
		
    var originalWidth = to_i($this.attr('origWidth'));
    var originalHeight = to_i($this.attr('origHeight'));
    var ratio = $this.attr('ratio');
    
    var width_and_height = [];
    width_and_height = find_width_and_height(originalWidth,originalHeight,ratio);
    
    $this.width( width_and_height[0] );
    $this.height( width_and_height[1] );
  }
  
  function find_width_and_height(originalWidth,originalHeight,ratio) {
    var pageWidth = $(window).width() - opts.horizontalOffset;
    var pageHeight = $(window).height() - opts.verticalOffset;
    
    if(!opts.isBackground){
      if(opts.maxFollows=='both'){
        max_follows_width(pageWidth,ratio);
        
        if( height > pageHeight ){
          max_follows_height(pageHeight,ratio);
        }
      } else if (opts.maxFollows == 'width'){
        max_follows_width(pageWidth,ratio);
      } else if (opts.maxFollows == 'height'){  
        max_follows_height(pageHeight,ratio);
      }
    }else{
		//alert(123);
      width = pageWidth + 40;
      height = width/ratio;
      
      if( height < pageHeight ){
        height = pageHeight - (opts.topSpace + opts.bottomSpace);
        width = height*ratio;
      }
    }
    
	
	
    // If maxAtRatio == true and your new width is larger than originalWidth, size to originalWidth
    if ( opts.maxAtOrigImageSize && width > originalWidth){
      arrayImageSize = new Array(originalWidth,originalHeight);
    }else{
      arrayImageSize = new Array(width,height);
    }
	//alert(arrayImageSize);
	
    return arrayImageSize;
  }
  
  function max_follows_height(pageHeight,ratio){
    height = pageHeight - (opts.topSpace + opts.bottomSpace);  // Page Height minus topSpace and bottomSpace
    width = height*ratio;
  }
  
  function max_follows_width(pageWidth,ratio){
    width = pageWidth - (opts.leftSpace + opts.rightSpace); // Page Width minus leftSpace and rightSpace
    height = width/ratio;
  }
  
  function find_ratio(width,height) {
    width = to_i(width);
    height = to_i(height);
    var ratio = width/height;
    ratio = ratio.toFixed(2);
    return ratio;
  }
  
  function to_i(i){
    last = parseInt(i);
    return last;
  }
  
  // private function for debugging
  function debug($obj) {
    if (window.console && window.console.log) {
      window.console.log($obj);
    }
  }
  
  return this.each(_initialize);
};


})(jQuery);