/**
 * Created by Pensare Software.
 * User: Theo Weijmer
 * Date: 21/04/2018
 * Time: 19:58
 */


$( function () {
    dbo.employeeTargetModel = {

        employeeTargets: ko.observableArray( [] ),
        employeeID     : null,
        months         : ko.observableArray( [] ),
        years          : ko.observableArray( [] ),
        targetLength   : [],
        newTarget      : ko.observable( true ),
        busy           : false,

        init: function ( employeeID ) {
            var vm = dbo.employeeTargetModel;

            vm.employeeID = employeeID;

            vm.months( dbo.monthArray );
            vm.years( dbo.years );

            vm.showModal();

            vm.refreshEmployeeTargets();
        },

        showModal: function () {
            $( "#employee-target-modal" ).modal( 'show' );
        },

        addEmployeeTarget: function () {
            var vm = dbo.employeeTargetModel;
            var lastYear = dbo.currentYear;
            var lastMonth = dbo.currentMonth;

            var data = {
                id        : 0,
                user_id   : vm.employeeID,
                startyear : lastYear,
                startmonth: lastMonth,
                endyear   : null,
                endmonth  : null,
                target    : 0
            }

            vm.employeeTargets.push( new vm.Employeetarget( data, (vm.targetLength - 1), false ) );
        },

        checkNumeric: function () {
            this.target( dbo.helpers.validateNumber( this.target() ) );
        },

        saveEmployeeTarget: function () {
            var vm = dbo.employeeTargetModel;
            var self = this;
            var submitDATA = {
                id        : self.id,
                user_id   : vm.employeeID,
                startmonth: self.startmonth(),
                startyear : self.startyear(),
                endmonth  : self.endmonth() || 0,
                endyear   : self.endyear() || 0,
                target    : self.target()
            }

            dbo.employeeTargetDataService.saveEmployeeTarget( submitDATA, function ( data ) {
                if ( !data.success ) return self.saved( false );

                self.saved( true );
                self.id = data.targetID;
            } );
        },

        setUnsaved: function () {
            var vm = dbo.employeeTargetModel;

            if ( vm.busy ) return;

            this.saved( false );
        },

        refreshEmployeeTargets: function () {
            var vm = dbo.employeeTargetModel;

            vm.busy = true;
            dbo.employeeTargetDataService.getEmployeeTargets( vm.employeeID, function ( data ) {
                vm.employeeTargets.removeAll();

                vm.newTarget( true );
                vm.targetLength = data.length
                var i = 0;
                _.each( data, function ( p ) {
                    vm.employeeTargets.push( new vm.Employeetarget( p, i, true ) );
                    i++;
                } );
                vm.busy = false;
            } );
        },


        Employeetarget: function ( data, i, saved ) {
            var vm = dbo.employeeTargetModel;
            var self = this;

            vm.newTarget( true );

            self.id = data.id;
            self.startyear = ko.observable( data.startyear );
            self.startmonth = ko.observable( data.startmonth );
            self.endyear = ko.observable( data.endyear );
            self.endmonth = ko.observable( data.endmonth );
            self.target = ko.observable( data.target );
            self.saved = ko.observable( saved );

            self.changeable = ko.pureComputed( function () {
                if ( i == (vm.targetLength - 1) ) return true;

                return false;
            } );

            self.validTarget = ko.pureComputed( function () {
                if ( !self.endmonth() && !self.endyear() ) return true;
                if ( !self.endmonth() || !self.endyear() ) return false;
                if ( self.endyear() == self.startyear() && self.endmonth() > self.startmonth() ) return true;
                if ( self.endyear() > self.startyear() && self.endmonth() ) return true;

                return false;
            } );

            if ( !self.endmonth() ) vm.newTarget( false );
            if ( !self.endyear() ) vm.newTarget( false );
        }
    };

    ko.applyBindings( dbo.employeeTargetModel, document.getElementById( 'employee-target-modal' ) );

} );