/Gradebook/Scripts/app/student.task.result.js

/// <reference path="../knockout-2.2.1.debug.js" />

/// <reference path="student.js" />

/// <reference path="task.js" />



var StudentTaskResult = (function () {

    function StudentTaskResult(data) {

        var self = this;

        this.result = ko.observable().extend({ numeric: 0 });

        this.rank = ko.observable();

        this.comments = ko.observable();

        this.student = new Student();

        this.task = new TaskModel();



        if (data != null) {

            if (data.Result) this.result(data.Result);

            

            this.rank(data.Rank);

            this.comments(data.Comments);



            if (data.Student) {

                this.student = new Student(data.Student);

            }

            if (data.Task) {

                this.task = new TaskModel(data.Task.Id, data.Task.Name, data.Task.TotalMarks, data.Task.Weight);

            }

        }



        this.header = this.task.totalMarks > 1 ? this.task.totalMarks.toString() : '✓';



        this.rate = ko.computed(function () {

            var result = self.result();

            if (result) {

                var max = self.task.totalMarks;

                var rate = max ? (result * 100 / max) : 0;

                return rate ? Math.round(rate * 10) / 10 : null;

            }

            return null;

        });



        this.isDone = ko.computed({

            read: function () {

                return self.result() > 0;

            },

            write: function (value) {

                self.result(value ? 1 : 0);

            }

        });

    }

    StudentTaskResult.prototype.toGrade = function () {

        return {

            taskId: this.task.id,

            studentId: this.student.id,

            value: this.result() ? this.result() : 0,

            comments: this.comments()

        };

    };

    return StudentTaskResult;

})();