api.js

/*
*
*
*       Complete the API routing below
*
*
*/

'use strict';

var expect = require('chai').expect;
var ConvertHandler = require('../controllers/convertHandler.js');

module.exports = function (app) {
  
  var convertHandler = new ConvertHandler();

  app.route('/api/convert')
    .get(function (req, res){
      var input = req.query.input;
      var initNum = convertHandler.getNum(input);
      var initUnit = convertHandler.getUnit(input);
    
      // console.log('initNum: ', initNum)
      // console.log('initUnit: ', initUnit)

      if (!initNum && !initUnit) {
        res.send('invalid number and unit')         
      } else if (!initNum) {
        res.send('invalid number.')
      } else if (!initUnit) {
        res.send('invalid unit.')
      } else {
        var returnNum = convertHandler.convert(initNum, initUnit);
        var returnUnit = convertHandler.getReturnUnit(initUnit);
        var toString = convertHandler.getString(initNum, initUnit, returnNum, returnUnit);

        res.json({ input, initNum, initUnit, returnNum, returnUnit, string: toString }) 
      }
    });
    
};