backupApp.controller('LogController', function($scope,$routeParams, SystemInfo, ServerStatus, AppService) {
    $scope.state = ServerStatus.watch($scope);
    $scope.BackupID = $routeParams.backupid;
    $scope.SystemInfo = SystemInfo.watch($scope);

    var liveRefreshTimer = null;
    var PAGE_SIZE = 100;

    function updateLivePoll() {
    	if ($scope.LiveRefreshing) {
			$scope.LiveRefreshPending = true;
			return;
    	}

    	if (liveRefreshTimer != null) {
    		clearTimeout(liveRefreshTimer);
    		liveRefreshTimer = null;
    	}

		if ($scope.Page != 'live' || $scope.LiveLogLevel == '')
			return;

		$scope.LiveRefreshPending = false;
		$scope.LiveRefreshing = true;
		AppService.get('/logdata/poll?level=' + $scope.LiveLogLevel + '&id=' + $scope.LiveRefreshID + '&pagesize=' + PAGE_SIZE).then(
			function(resp) {
                for(var n in resp.data)
                    $scope.LiveRefreshID = Math.max($scope.LiveRefreshID, resp.data[n].ID);

                if ($scope.LiveData == null)
                	$scope.LiveData = [];

				resp.data.reverse();
                $scope.LiveData.unshift.apply($scope.LiveData, resp.data);
                $scope.LiveData.Length = Math.min(1000, $scope.LiveData.length);

                $scope.LiveRefreshing = false;
                if ($scope.LiveRefreshPending)
                	updateLivePoll();
                else
                	if ($scope.Page == 'live' && $scope.LiveLogLevel != '')
                		liveRefreshTimer = setTimeout(updateLivePoll, 3000);

			}, function(resp) {
            	if ($scope.Page == 'live' && $scope.LiveLogLevel != '')
            		liveRefreshTimer = setTimeout(updateLivePoll, 3000);
			}
		);

    };

    function LoadMoreData(url, key, idfield) {
    	if ($scope.LoadingData)
    		return;

    	var last = null;
    	if ($scope[key] != null && $scope[key].length > 0 )
    		last = $scope[key][$scope[key].length - 1][idfield];

    	$scope.LoadingData = true;
    	AppService.get(url + '?pagesize=' + PAGE_SIZE + (last == null ? '' : ('&offset=' + last))).then(
    		function(resp) { 
    			if ($scope[key] == null)
    				$scope[key] = [];
    			$scope[key].push.apply($scope[key], resp.data);
    			$scope.LoadingData = false;
    			$scope[key + 'Complete'] = resp.data.length < PAGE_SIZE;
    		}, function(resp) {
                var message = resp.statusText;
                if (resp.data != null && resp.data.Message != null)
                    message = resp.data.Message;

                $scope.LoadingData = false;
                alert('Failed to connect: ' + message);
    		});    	
    };


    $scope.$watch('LiveLogLevel', updateLivePoll);
    $scope.$watch('Page', updateLivePoll);
    $scope.$watch('Page', function() {
    	if ($scope.Page == 'remote' && $scope.RemoteData == null)
    		$scope.LoadMoreRemoteData();
    });

    if ($scope.BackupID == null) {
    	$scope.Page = 'stored';
    	$scope.LiveLogLevel = '';
    	$scope.LiveRefreshID = 0;
    	$scope.LiveRefreshing = false;
    	$scope.LiveRefreshPending = false;

		$scope.LoadMoreStoredData = function() { LoadMoreData('/logdata/log', 'LogData', 'Timestamp'); };
    	$scope.LoadMoreStoredData();
    } else {
    	$scope.Page = 'general';

		$scope.LoadMoreGeneralData = function() { LoadMoreData('/backup/' + $scope.BackupID + '/log', 'GeneralData', 'ID'); };
		$scope.LoadMoreRemoteData = function() { LoadMoreData('/backup/' + $scope.BackupID + '/remotelog', 'RemoteData', 'ID'); };
		
		$scope.LoadMoreGeneralData();
    }

});