(function() {
    'use strict';

    // injected refs
    var $log, $scope, $interval, $timeout, fs, wss, ks, ls;

    // constants
    var intIntentAddReq = 'intIntentAddRequest';
    var intIntentDelReq = 'intIntentDelRequest';

    var refreshInterval = 1000;

    var propOrder = ['id', 'srcAddr', 'dstAddr', 'srcPort', 'dstPort', 'insMask'];
    var friendlyProps = ['IntIntent ID', 'Src Address', 'Dst Address', 'Src Port', 'Dst Port', 'Ins Mask'];

    function sendIntIntentString() {
        var inst = [];
        if ($scope.metaSwId) inst.push("SWITCH_ID");
        if ($scope.metaPortId) inst.push("PORT_ID");
        if ($scope.metaHopLatency) inst.push("HOP_LATENCY");
        if ($scope.metaQOccupancy) inst.push("QUEUE_OCCUPANCY");
        if ($scope.metaIngressTstamp) inst.push("INGRESS_TIMESTAMP");
        if ($scope.metaEgressTstamp) inst.push("EGRESS_TIMESTAMP");
        if ($scope.metaEgressTx) inst.push("EGRESS_TX_UTIL");

        var intentObjectNode = {
            "ip4SrcPrefix": $scope.ip4SrcPrefix,
            "ip4DstPrefix": $scope.ip4DstPrefix,
            "l4SrcPort": $scope.l4SrcPort,
            "l4DstPort": $scope.l4DstPort,
            "protocol": $scope.protocol,
            "metadata": inst
        };
        wss.sendEvent(intIntentAddReq, intentObjectNode);
    }

    function delIntIntent() {
        if ($scope.selId) {
            wss.sendEvent(intIntentDelReq, {
                "intentId": $scope.selId
            });
        }
    }

    function intIntentBuildTable(o) {
        var handlers = {},
            root = o.tag + 's',
            req = o.tag + 'DataRequest',
            resp = o.tag + 'DataResponse',
            onSel = fs.isF(o.selCb),
            onResp = fs.isF(o.respCb),
            idKey = o.idKey || 'id',
            oldTableData = [],
            refreshPromise;

        o.scope.tableData = [];
        o.scope.changedData = [];
        o.scope.sortParams = o.sortParams || {};
        o.scope.autoRefresh = true;
        o.scope.autoRefreshTip = 'Toggle auto refresh';

        // === websocket functions --------------------
        // response
        function respCb(data) {
            ls.stop();
            o.scope.tableData = data[root];
            o.scope.annots = data.annots;
            onResp && onResp();

            // checks if data changed for row flashing
            if (!angular.equals(o.scope.tableData, oldTableData)) {
                o.scope.changedData = [];
                // only flash the row if the data already exists
                if (oldTableData.length) {
                    angular.forEach(o.scope.tableData, function (item) {
                        if (!fs.containsObj(oldTableData, item)) {
                            o.scope.changedData.push(item);
                        }
                    });
                }
                angular.copy(o.scope.tableData, oldTableData);
            }
        }
        handlers[resp] = respCb;
        wss.bindHandlers(handlers);

        // request
        function sortCb(params) {
            var p = angular.extend({}, params, o.query);
            if (wss.isConnected()) {
                wss.sendEvent(req, p);
                ls.start();
            }
        }
        o.scope.sortCallback = sortCb;

        // === selecting a row functions ----------------
        function selCb($event, selRow) {
            var selId = selRow[idKey];
            o.scope.selId = (o.scope.selId === selId) ? null : selId;
            onSel && onSel($event, selRow);
        }
        o.scope.selectCallback = selCb;

        // === autoRefresh functions ------------------
        function fetchDataIfNotWaiting() {
            if (!ls.waiting()) {
                if (fs.debugOn('widget')) {
                    $log.debug('Refreshing ' + root + ' page');
                }
                sortCb(o.scope.sortParams);
            }
        }

        function startRefresh() {
            refreshPromise = $interval(fetchDataIfNotWaiting, refreshInterval);
        }

        function stopRefresh() {
            if (refreshPromise) {
                $interval.cancel(refreshPromise);
                refreshPromise = null;
            }
        }

        function toggleRefresh() {
            o.scope.autoRefresh = !o.scope.autoRefresh;
            o.scope.autoRefresh ? startRefresh() : stopRefresh();
        }
        o.scope.toggleRefresh = toggleRefresh;

        // === Cleanup on destroyed scope -----------------
        o.scope.$on('$destroy', function () {
            wss.unbindHandlers(handlers);
            stopRefresh();
            ls.stop();
        });

        sortCb(o.scope.sortParams);
        startRefresh();
    }

    var app1 = angular.module('ovIntApp', []);
    app1.controller('OvIntAppCtrl',
        ['$log', '$scope', '$interval', '$timeout', 'TableBuilderService',
            'FnService', 'WebSocketService', 'KeyService', 'LoadingService',

            function(_$log_, _$scope_, _$interval_, _$timeout_, tbs, _fs_, _wss_, _ks_, _ls_) {
                $log = _$log_;
                $scope = _$scope_;
                $interval = _$interval_;
                $timeout = _$timeout_;
                fs = _fs_;
                wss = _wss_;
                ks = _ks_;
                ls = _ls_;

                // custom selection callback
                function selCb($event, row) {
                }
                intIntentBuildTable({
                    scope: $scope,
                    tag: 'intAppIntIntent'
                    // selCb: selCb
                });

                $scope.sendIntIntentString = sendIntIntentString;
                $scope.delIntIntent = delIntIntent;
                $scope.sendIntConfigString = sendIntConfigString;

                // get data the first time...
                // getData();

                // cleanup
                $scope.$on('$destroy', function() {
                    // wss.unbindHandlers(handlers);
                    /*ks.unbindKeys();*/
                    $log.log('OvIntAppCtrl has been destroyed');
                });

                $log.log('OvIntAppCtrl has been created');
            }
        ]);
}());