/*
 * 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, EventEmitter, OnInit, Output } from '@angular/core';
import { AbstractStaticPropertyRenderer } from '../base/abstract-static-property';
import { OneOfStaticProperty } from '@streampipes/platform-services';

@Component({
  selector: 'sp-static-one-of-input',
  templateUrl: './static-one-of-input.component.html',
  styleUrls: ['./static-one-of-input.component.css']
})
export class StaticOneOfInputComponent extends AbstractStaticPropertyRenderer<OneOfStaticProperty> implements OnInit {


  @Output() inputEmitter: EventEmitter<boolean> = new EventEmitter<boolean>();

  selectedOption: string;

  constructor() {
    super();
  }

  ngOnInit() {
    if (this.noneSelected()) {
      if (this.staticProperty.options.length > 0) {
        this.staticProperty.options[0].selected = true;
        this.selectedOption = this.staticProperty.options[0].elementId;
      }
    } else {
      this.selectedOption = this.staticProperty.options.find(option => option.selected).elementId;
    }
    this.inputEmitter.emit(true);
    this.parentForm.updateValueAndValidity();
  }

  noneSelected(): boolean {
    return this.staticProperty.options.every(o => !(o.selected));
  }

  select(id) {
    this.selectedOption = this.staticProperty.options.find(option => option.elementId === id).elementId;
    for (const option of this.staticProperty.options) {
      option.selected = false;
    }
    this.staticProperty.options.find(option => option.elementId === id).selected = true;
    this.inputEmitter.emit(true);
  }
}
