/*
 * 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 { Component, OnInit } from '@angular/core';
import { CustomOutputStrategy } from '@streampipes/platform-services';
import { BaseOutputStrategy } from '../base/BaseOutputStrategy';
import { PropertySelectorService } from '../../../../services/property-selector.service';
import { FormControl } from '@angular/forms';

@Component({
  selector: 'custom-output-strategy',
  templateUrl: './custom-output-strategy.component.html',
  styleUrls: ['./custom-output-strategy.component.scss']
})
export class CustomOutputStrategyComponent extends BaseOutputStrategy<CustomOutputStrategy> implements OnInit {

  collectedPropertiesFirstStream: any;
  collectedPropertiesSecondStream: any;

  constructor(private propertySelectorService: PropertySelectorService) {
    super();
  }

  ngOnInit() {
    this.parentForm.addControl('output-strategy', new FormControl());
    this.collectedPropertiesFirstStream = this.propertySelectorService
        .makeProperties(this.getProperties(0), this.outputStrategy.availablePropertyKeys, this.propertySelectorService.firstStreamPrefix);
    this.collectedPropertiesSecondStream = this.propertySelectorService
        .makeProperties(this.getProperties(1), this.outputStrategy.availablePropertyKeys, this.propertySelectorService.secondStreamPrefix);
    this.checkFormValidity();
  }

  getProperties(streamIndex) {
    return this.selectedElement.inputStreams[streamIndex] === undefined ?
      [] : this.selectedElement.inputStreams[streamIndex].eventSchema.eventProperties;
  }

  selectAll(collectedProperties) {
    collectedProperties.forEach(ep => this.outputStrategy.selectedPropertyKeys.push(ep.runtimeId));
    // This is needed to trigger update of scope
    this.outputStrategy.selectedPropertyKeys = this.outputStrategy.selectedPropertyKeys.filter(el => true);
    this.checkFormValidity();
  }

  deselectAll(collectedProperties) {
    collectedProperties.forEach(ep => this.outputStrategy.selectedPropertyKeys =
        this.outputStrategy.selectedPropertyKeys.filter(item => item !== ep.runtimeId));
    this.checkFormValidity();
  }

  checkFormValidity() {
    if (!this.outputStrategy.selectedPropertyKeys || this.outputStrategy.selectedPropertyKeys.length === 0) {
      this.parentForm.controls['output-strategy'].setErrors({});
    } else {
      this.parentForm.controls['output-strategy'].setErrors(undefined);
    }
  }
}
