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/*
* Copyright (c) 2022. Deutsche Telekom AG
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
import { Router } from '@angular/router';
import { filterBuilder, FilterOperator } from 'src/app/helpers/filter-helpers';
/**
* A JSONPath filter. One or more `Filter`s can be passed to the `filter=` param of the alarm API.
*/
export interface Filter {
/**
* The field to compare against, i.e `$.type`
*/
parameter: string;
/**
* The JSONPath Filter Operators that are used for comparison (subset of [these](https://www.postgresql.org/docs/current/functions-json.html#FUNCTIONS-SQLJSON-FILTER-EX-TABLE)).
* For instance `==` and `like_regex`:
* ```
* $.id == 1
* $.type like_regex "type_(a|b)"
* ```
*/
operator: FilterOperator;
/**
* The value or pattern that the field should have, i.e `"type_(a|b)"`
*/
value: string | number;
}
/**
* This represents one filter expression for one column.
* Use `undefined` to signal removal of the filter.
*
* Note that parameter needs to be the complete param (i.e `$.column`).
* That is necessary because this will be the key when parsing the filter expression into a map.
*/
export type ColumnFilter = {
parameter: string;
filter: Filter | undefined;
};
export function changePage(router: Router, page: number): void {
router.navigate([], { queryParams: { page }, queryParamsHandling: 'merge' });
}
export function changePageSize(router: Router, pageSize: number): void {
router.navigate([], {
queryParams: { page: 1, pageSize },
queryParamsHandling: 'merge',
});
}
export function changeFilter(router: Router, value: string | undefined): void {
router.navigate([], {
queryParams: { filter: value ? value.trim() : undefined, page: 1 },
queryParamsHandling: 'merge',
});
}
/**
* Format a JSONPath filter expression into the format required by the angular router.
* Add or update this filter param in the router.
* @param router the angular router
* @param filters the filter expression in JSONPath format
* @param path path for new router link
* @param params other queryParams
*/
export function changeFiltersInRouter(router: Router, filters: Map<string, Filter>, params?: { [key: string]: any }, path?: any[]): void {
const composedFilter = filters.size > 0 ? filterBuilder(filters) : undefined;
router.navigate(path ?? [], {
queryParams: { filter: composedFilter, ...params, page: 1 },
queryParamsHandling: 'merge',
});
}
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