var paginationApp = angular.module('paginationApp', ["commonsApp"]);

paginationApp.controller('paginationController',['$scope', function($scope) {
	
}]);

paginationApp.directive('tablePagination',['Constants', function(Constants) {
	 return {
	        restrict: "E",
	        templateUrl: Constants.cdnFullPath + 'scripts/angular/commons/modules/pagination/pagination.html',
	        replace: true,
	        scope: {
	        	startRow:'=',
	        	endRow : '=',
				totalRows : '=',
				currentPage : '=',
				lastPage : '=',
				pageSizeList : '=',
				pageSize : '=',
				change : '='
	        },
	        link:function(scope, iElm, attrs) {
	        	scope.getFirstPage = function() {
	        		if(scope.startRow == 1) {
	        			return;
	        		}
	        		scope.startRow = 1;
	        		scope.currentPage = 1;
	        		scope.endRow = scope.startRow + scope.pageSize - 1;
	        		scope.change = true;
	        	};
	        	scope.getPreviousPage = function() {
	        		if (scope.startRow <= 1) {
						return;
					}
					if(scope.currentPage != 1) {
						scope.currentPage--;
					}
					scope.startRow = scope.pageSize * (scope.currentPage - 1) + 1;
					scope.endRow = scope.startRow + scope.pageSize - 1;
					scope.change = true;
	        	};
	        	scope.getNextPage = function() {
	        		if (scope.endRow >= scope.totalRows) {
						return;
					}
	        		scope.currentPage++;
	        		scope.startRow = scope.pageSize * (scope.currentPage - 1) + 1;
	        		scope.endRow = scope.startRow + scope.pageSize - 1;
	        		scope.change = true;
	        	};
	        	scope.getLastPage = function() {
	        		if(scope.endRow >= scope.totalRows) {
						return;
					}
	        		scope.currentPage = Math.floor(scope.totalRows/scope.pageSize);
					if(scope.totalRows % scope.pageSize > 0 ) {
						scope.currentPage += 1;
					}
					scope.startRow = scope.pageSize * (scope.currentPage - 1) + 1;
					scope.endRow = scope.totalRows;
					scope.change = true;					
	        	};
	        	
	        	scope.gotoPage = function(event) {
	        		if(event.keyCode != 13) {
	        			return;
	        		}
	        		else if(!(!isNaN(scope.currentPageTemp) && parseInt(Number(scope.currentPageTemp)) && scope.currentPageTemp <= scope.lastPage)) {
	        			scope.currentPageTemp = scope.currentPage;
	        			return;
	        		} else {
	        			scope.currentPage = scope.currentPageTemp;
	        			scope.startRow = (scope.currentPage - 1) * scope.pageSize + 1;
	        			scope.endRow = scope.startRow + scope.pageSize - 1;
	        			if(scope.endRow > scope.totalRows) {
	        				scope.endRow = scope.totalRows;
	        			}
	        			scope.change = true;
	        		}
	        		
	        	};
	        	
	        	scope.$watch('pageSize', function(newValue, oldValue) {
	        		if(isNaN(newValue) || isNaN(oldValue)) {
	        			return;
	        		}
	        		if (scope.pageSize >= scope.totalRows) {
	        			scope.startRow = 1;
					} else {
						scope.startRow = Math.floor((scope.startRow/scope.pageSize)) * scope.pageSize + 1;
					}
	        		scope.endRow = scope.startRow + scope.pageSize - 1;
	        		scope.currentPage = Math.floor(scope.startRow / scope.pageSize)+1;
	        		scope.lastPage = Math.ceil(scope.totalRows/scope.pageSize);
	        		scope.change = true;
	        	});
	        	
	        	
	        }
	 };
}]);