var tabelas = new Tabelas();

function Tabela(classe, list, meta)
{
   this.expire = 1000 * 60 * 5;  // 5 minutos
   this.classe = classe;
   
   this.set = function ( list, meta )
   {
      this.list = list;
      this.meta = meta;
      this.timestamp = new Date().getTime();
   }
   
   this.set(list, meta);
   
   
   this.clear = function ()
   {
      this.list.length = 0;
   }
   
   this.expirado = function ()
   {
      var timeDiff = Math.abs((new Date()).getTime() - this.timestamp);
      if (timeDiff > this.expire)
      {
         return true;
      }
      return false;
   }
   
   this.get = function ( id )
   {
      for (var i=0; i < this.list.length; i++)
      {
         var r = this.list[i];
         if (r[this.getIdField()] == id)
         {
            return r;
         }
      }
      return null;
   }
   
   
   this.getDataAdapter = function () 
   {
       var source =
       {
             localdata: this.list,
             datatype: "array",
             datafields: this.meta
       };
      var dataAdapter = new $.jqx.dataAdapter(source, { uniqueDataFields: [this.getIdField()] });
      return dataAdapter;
   }
   
   this.getDescField = function () 
   {
      return this.meta[1].name;
   }
   
   this.getIdField = function () 
   {
      if (this.meta && this.meta[0])
      {
         return this.meta[0].name;
      }
      console.log('ERROR - faltando IdField:', this);
      return "__x";
   }
}


function Tabelas()
{
   this.tabs = new Object();
   
   this.unload = function (classes)
   {
      for (var i=0; i < classes.length; i++)
      {
         var c = classes[i];
         if (this.tabs[ c ])
         {
            this.tabs[ c ].clear();
            this.tabs[ c ] = null;
         }
      }
   }
   
   this.load = function (classes, onOK, onNOK)
   {
      var classesACarregar = '';
      var delim = '';
      for (var i=0; i < classes.length; i++)
      {
         var c = classes[i];
         if (this.tabs[ c ])
         {
            var t = this.tabs[ c ];
            if (t.expirado())
            {
               classesACarregar += delim + c;
               delim = '+';
            }
         }
         else
         {
            classesACarregar += delim + c;
            delim = '+';
         }
      }
      console.log('load', this.tabs, classesACarregar);
      if (classesACarregar=='')
      {
         if (onOK)
         {
            onOK(false);
         }
         return;
      }
      var url = http.getUrl('contahub.cmds.ContaHubCmd', 'getTabelas')
              + '?_class=' + classesACarregar
              ;

      http.callHTTP( url
        ,function(dados) 
         {
            var classes = Object.keys(dados);
            console.log('loadOK', dados, tabelas);
            for (var i=0; i < classes.length; i++)
            {
               var c = classes[i];
               if ( !(tabelas.tabs[ c ]) )
               {
                  tabelas.tabs[ c ] = new Tabela(c, dados[c].list, dados[c].meta);
               }
               else
               {
                  tabelas.tabs[ c ].set(dados[c].list, dados[c].meta);
               }
            }
            if (onOK)
            {
               onOK(true);
            }
            return;
         }
         , onNOK
         );
   }
   
   
   this.get = function (classe, id) 
   {
      if ( this.tabs[ classe ] )
      {
         return this.tabs[ classe ].get(id);
      }
      return null;
   }
   
   
   this.getTab = function (datafield) 
   {
      var classes = Object.keys( tabelas.tabs );
      for (var i=0; i < classes.length; i++)
      {
         var c = classes[i];
         if ( datafield.indexOf(tabelas.tabs[ c ].getIdField() )==0 )
         {
            return tabelas.tabs[ c ];
         }
      }
      return null;
   }
   
   this.createEditor = function (row, cellvalue, editor, cellText, width, height)
   {
       var datafield = this.datafield;
       var t = tabelas.getTab( datafield );
       var desc = t.getDescField();
       var dataAdapter = t.getDataAdapter();
       
       console.log('createEditor', datafield, desc, t, dataAdapter, this);

       var inputElement = $("<input/>").prependTo(editor);
       inputElement.jqxInput({ source: dataAdapter, displayMember: desc, valueMember: datafield, width: 200, height: 100, minLength:1});
   }

    this.renderDesc = function (row, column, value, defaultHtml) 
    {
       if (value)
       {
          var t = tabelas.getTab( column );
          var s = t.get(value)[ t.getDescField() ];
          return grid.replaceInDefaultHTML(defaultHtml, s);
       }
       
       return defaultHtml;
    }
      
    this.renderIdDesc = function (row, column, value, defaultHtml) 
    {
       if (value)
       {
          var t = tabelas.getTab( column );
          var s = value + ' - ' + t.get(value)[ t.getDescField() ];
          return grid.replaceInDefaultHTML(defaultHtml, s);
       }
       
       return defaultHtml;
    }
    
    this.renderEmoji = function (row, column, value, defaultHtml) 
    {
       var s = tabelas.toEmojis(value);
       if (s!='')
       {
          return grid.replaceInDefaultHTML(defaultHtml, s);
       }
       
       return defaultHtml;
    }
    
    this.toEmojis = function(value)
    {
       if (value && (value!=''))
       {
          var s = '';
          var ss = (value + '').split('.');
          for (var i=0; i < ss.length; i++)
          {
             var x = ss[i].trim();
             if ( (x=='') || (x*1<=0) )
             {
                continue;
             }
             try
             {
                s += String.fromCodePoint(x);
             }
             catch(e)
             {
                console.error(e, 'x:', x, 'ss:',ss, 'value:',value);
             }             
          }
          return s;
       }
       return '';
    }    
    
    this.fromEmojis = function(value)
    {
       if (value && (value!=''))
       {
          var s = '';
          for (var i=0; i < value.length; i+=2)
          {
             var c = value.codePointAt(i);
             s += ( (s=='') ? '' : '.') + c;
          }
          return s;
       }
       return '';
    }    
}