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/**
 * Copyright (c) 2015 Guyon Roche
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */
'use strict';
 
var utils = require('../../../utils/utils');
var BaseXform = require('../base-xform');
 
var IntegerXform = module.exports = function(options) {
  this.tag = options.tag;
  this.attr = options.attr;
  this.attrs = options.attrs;
};
 
utils.inherits(IntegerXform, BaseXform, {
  
  render: function(xmlStream, model) {
    // int is different to float in that zero is not rendered
    if (model) {
      xmlStream.openNode(this.tag);
      if (this.attrs) {
        xmlStream.addAttributes(this.attrs);
      }
      if (this.attr) {
        xmlStream.addAttribute(this.attr, model);
      } else {
        xmlStream.writeText(model);
      }
      xmlStream.closeNode();
    }
  },
 
  parseOpen: function(node) {
    if (node.name === this.tag) {
      if (this.attr) {
        this.model = parseInt(node.attributes[this.attr]);
      } else {
        this.text = [];
      }
      return true;
    } else {
      return false;
    }
  },
  parseText: function(text) {
    if (!this.attr) {
      this.text.push(text);
    }
  },
  parseClose: function() {
    if (!this.attr) {
      this.model = parseInt(this.text.join('') || 0);
    }
    return false;
  }
});