/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 *
 */

import { Injectable } from '@angular/core';
import { ExportConfig } from '../model/export-config.model';

@Injectable({
    providedIn: 'root',
})
export class FileNameService {
    public generateName(exportConfig: ExportConfig, exportDate: Date): string {
        const baseName = `${this.getDateString(exportDate)}_${
            exportConfig.dataExportConfig.measurement
        }_`;
        const dataRangeOption =
            exportConfig.dataExportConfig.dataRangeConfiguration;
        let dateRange = '';
        const fileExtension = `.${exportConfig.formatExportConfig.exportFormat}`;

        if (
            exportConfig.dataExportConfig.dateRange !== undefined &&
            (dataRangeOption === 'customInterval' ||
                dataRangeOption === 'visible')
        ) {
            if (exportConfig.dataExportConfig.dateRange.startDate) {
                dateRange += `_${this.getDateString(
                    exportConfig.dataExportConfig.dateRange.startDate,
                )}`;
            }

            if (exportConfig.dataExportConfig.dateRange.endDate) {
                dateRange += `_${this.getDateString(
                    exportConfig.dataExportConfig.dateRange.endDate,
                )}`;
            }
        }

        return baseName + dataRangeOption + dateRange + fileExtension;
    }

    public getDateString(date: Date): string {
        return date.toISOString().split('T')[0];
    }
}
