/**
 * class providing system related functions for:
 *   > php locale
 *   > splash screen
 *   > forms    
 * 
 */
var synlib_CSys = new Class({
  phpLocale: {
    decimal_point: ',',
    thousands_sep: '.',
    int_curr_symbol: 'EUR',
    currency_symbol: '€',
    mon_decimal_point: ',',
    mon_thousands_sep: '.',
    setlocaleres_monetary: 'es_ES.utf8',
    setlocaleres_time: 'es_ES.utf8'
  },
  initPhpLocale: function(aLocale){
    this.phpLocale.decimal_point = aLocale.decimal_point;
    this.phpLocale.thousands_sep = aLocale.thousands_sep;
    this.phpLocale.int_curr_symbol = aLocale.int_curr_symbol;
    this.phpLocale.currency_symbol = aLocale.currency_symbol;
    this.phpLocale.mon_decimal_point = aLocale.mon_decimal_point;
    this.phpLocale.mon_thousands_sep = aLocale.mon_thousands_sep;
    this.phpLocale.setlocaleres_monetary = aLocale.setlocaleres_monetary;
    this.phpLocale.setlocaleres_time = aLocale.setlocaleres_time;
  },
  initPageTop: function(){
    var body = $(document.body);
    var pageTopBg = $('tx-synlib-pagetopbg');
    if(!$chk(pageTopBg)){
      pageTopBg = new Element('div',{
        'id': 'tx-synlib-pagetopbg'
      }); 
      pageTopBg.inject(body,'top');
    };
    var pageTop = $('tx-synlib-pagetop');      
    if(!$chk(pageTop)){      
      pageTop = new Element('div',{
        'id': 'tx-synlib-pagetop',
        'class': 'tx-synlib-pagetop'
      });
      pageTop.inject(body,'top');     
    }; 
  },
  showPageTop: function(){
    var winHeight = $(window).getHeight();
    var halfWinHeight = (winHeight/2).round();
    var body = $(document.body);
    var pageTopBg = $('tx-synlib-pagetopbg');
    var pageTop = $('tx-synlib-pagetop');
    if(!$chk(pageTop) || !$chk(pageTopBg)) self.initPageTop();  
    
    var currDisplay = pageTop.getStyle('display');
    if(currDisplay=='none'){ 
      pageTopBg.setStyle('display','block');
      pageTopBg.setStyle('height',winHeight + 'px');
      pageTop.setStyle('display','block');
      pageTop.setStyle('height',winHeight + 'px');
      pageTop.setStyle('backgroundPosition','center center');
      pageTopBg.tween('opacity',0,0.8);  
      pageTop.tween('opacity',0,1); 
    }; 
  },
  hidePageTop: function(sender){
    if($chk(sender)){
      $(sender).setStyle('display','none');
    };
    var pageTopBg = $('tx-synlib-pagetopbg');
    var pageTop = $('tx-synlib-pagetop');
    var MyTopBgTween = new Fx.Tween(pageTopBg);
    var MyTopTween = new Fx.Tween(pageTop);
    var currOpacity = pageTop.getStyle('opacity');
    if(currOpacity==1){ 
      MyTopBgTween.start('opacity',0).chain(function(){pageTop.setStyle('display','none');});
      MyTopTween.start('opacity',0);
    };
  },
  showSplashContent: function(){
    var pageTop = $('tx-synlib-pagetop');
    if(!$chk(pageTop)) synlib_Sys.initPageTop();
    
    var currDisplay = pageTop.getStyle('display');
    if(currDisplay=='none') synlib_Sys.showPageTop();

    var splashContent = $('tx-synlib-splashcontent');
    if($chk(splashContent)){
      var winHeight = $(window).getHeight();  
      var height = splashContent.getHeight(); 
      var top = ((winHeight-height)/2).round(); 
      splashContent.setStyle('marginTop',top + 'px'); 
      splashContent.tween('opacity',0,1);
      var pageTop = $('tx-synlib-pagetop');
      pageTop.setStyle('backgroundPosition','center -2000px');
    };
  },
  disableFormFields: function(form){
    $(form).getElements('input').each(function(el){
      el.setProperty('readonly','readonly');
      el.setStyle('cursor','wait');
    });
    $(form).getElements('textarea').each(function(el){
      el.setProperty('readonly','readonly');
      el.setStyle('cursor','wait');
    });
  },
  enableFormFields: function(form){
    $(form).getElements('input').each(function(el){
      el.removeProperty('readonly');
      var type = el.getProperty('type');
      if(type=='text') {
        el.setStyle('cursor','text');
      } else {
        el.setStyle('cursor','auto');
      };
    });
    $(form).getElements('textarea').each(function(el){
      el.removeProperty('readonly');
      el.setStyle('cursor','text');
    });
  }
});  

/**
 * Class providing methods to manipulate numbers
 * 
 */  
var synlib_CSysNumber = new Class({
  number_format: function(number, decimals, dec_point, thousands_sep) {
  
      var n = number, prec = decimals;
  
      var toFixedFix = function (n,prec) {
          var k = Math.pow(10,prec);
          return (Math.round(n*k)/k).toString();
      };
  
      n = !isFinite(+n) ? 0 : +n;
      prec = !isFinite(+prec) ? 0 : Math.abs(prec);
      var sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep;
      var dec = (typeof dec_point === 'undefined') ? '.' : dec_point;
  
      var s = (prec > 0) ? toFixedFix(n, prec) : toFixedFix(Math.round(n), prec); //fix for IE parseFloat(0.55).toFixed(0) = 0;
  
      var abs = toFixedFix(Math.abs(n), prec);
      var _, i;
  
      if (abs >= 1000) {
          _ = abs.split(/\D/);
          i = _[0].length % 3 || 3;
  
          _[0] = s.slice(0,i + (n < 0)) +
                _[0].slice(i).replace(/(\d{3})/g, sep+'$1');
          s = _.join(dec);
      } else {
          s = s.replace('.', dec);
      }
  
      var decPos = s.indexOf(dec);
      if (prec >= 1 && decPos !== -1 && (s.length-decPos-1) < prec) {
          s += new Array(prec-(s.length-decPos-1)).join(0)+'0';
      }
      else if (prec >= 1 && decPos === -1) {
          s += dec+new Array(prec).join(0)+'0';
      }
      return s;
  },  
  floatToMon: function(f){
    return this.number_format(f,2,synlib_Sys.phpLocale.mon_decimal_point,synlib_Sys.phpLocale.mon_thousands_sep);
  },
  monToFloat: function(m){
    m = m.split(synlib_Sys.phpLocale.mon_thousands_sep).join('');
    f = m.split(synlib_Sys.phpLocale.mon_decimal_point).join(synlib_Sys.phpLocale.decimal_point);
    return f.toFloat();
  }
});

var synlib_Sys = new synlib_CSys();
var synlib_SysNumber = new synlib_CSysNumber();