/********************************************************************************
 * Copyright (c) 2015-2018 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 ********************************************************************************/

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { Node } from '../../navigator/node';
import { MeasuredValues, MeasuredValuesResponse, NumberArray } from '../model/chartviewer.model';

let timeChannel = new MeasuredValues();
timeChannel.name = 'time';
timeChannel.unit = 's';
timeChannel.length = 5;
timeChannel.independent = true;
timeChannel.scalarType = 'INTEGER';
timeChannel.integerArray = new NumberArray();
timeChannel.integerArray.values = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
timeChannel.flags = [true, true, true, true, true, true, true, true, true, true];

let channel1 = new MeasuredValues();
channel1.name = 'channel1';
channel1.unit = 'm';
channel1.length = 5;
channel1.independent = true;
channel1.scalarType = 'INTEGER';
channel1.integerArray = new NumberArray();
channel1.integerArray.values = [3, 5, 4, 3, 2, 5, 1, 1, 7, 2];
channel1.flags = [true, true, true, true, true, true, true, true, true, true];

let data = new MeasuredValuesResponse();
data.values = [timeChannel, channel1];

@Injectable({
  providedIn: 'root'
})
export class DummyChartviewerService {

  constructor() {
  }

  loadMeasuredValues(channelGroup: Node, channels: Node[], startIndex = 0, requestSize = 0) {
    data.values[0].length = requestSize;
    data.values[0].integerArray.values = Array.from(Array(requestSize).keys()).map((v, i) => startIndex + i);
    data.values[0].flags = data.values[0].integerArray.values.map(v => true);

    data.values[1].length = requestSize;
    data.values[1].integerArray.values = data.values[0].integerArray.values.map(v => Math.random() * 10);
    data.values[1].flags = data.values[1].integerArray.values.map(v => true);

    return Observable.of(data.values);
  }

  readMeasuredValuesMetadata(channelGroup: Node, channels: Node[]) {
    return Observable.of(data.values);
  }
}