// Get Programming with JavaScript

// Listing 15.01

// A simple user view

​

​

// User constructor

​

var User = function (name) {

    var sessions = [];

    var totalDuration = 0;

​

    this.addSession = function (sessionDate, duration) {

        sessions.push({

            "sessionDate" : sessionDate,

            "duration"    : duration

        });

        totalDuration += duration;

        return totalDuration;

    };

    this.getData = function () {

        return {

            "name"    : name,

            "total"   : totalDuration,

            "sessions": sessions.slice()

        };

    };

};

​

​

// View

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var userView = (function () {

  var getInfo = function (userData) {

    var infoString = "\n" + userData.name + "\n";

    userData.sessions.forEach(function (session) {

      infoString += session.duration + " minutes on ";

      infoString += session.sessionDate + "\n";

    });

    infoString += "\n" + userData.total + " minutes so far";

    infoString += "\nWell done!\n";

    return infoString;

  };

  var render = function (user) {

    console.log(getInfo(user.getData()));

  };

  return {

    render: render

  };

})();

​

​

// Test

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var user = new User("Mahesha");

user.addSession("2017-02-05", 35);

user.addSession("2017-02-06", 45);

​

userView.render(user);

​

​

/* Further Adventures

 *

 * 1) Update the view so that it displays

 *    different messages depending on

 *    the total exercise the user has

 *    completed.

 *

 *    e.g. "Get going!"

 *         "Not bad!"

 *         "Getting there!"

 *         "Outstanding!"

 *

 */

​

​

​

​