/**
 * 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, Input, OnInit, Output, ViewChild} from '@angular/core';
import {FormBuilder, FormGroup, Validators} from '@angular/forms';
import {TdStepComponent} from '@covalent/core';
import {Office} from '../../services/office/domain/office.model';
import {FimsValidators} from '../../common/validator/validators';
import {Address} from '../../services/domain/address/address.model';
import {AddressFormComponent} from '../../common/address/address.component';


@Component({
  selector: 'fims-office-form-component',
  templateUrl: './form.component.html'
})
export class OfficeFormComponent implements OnInit {

  private _office: Office;

  detailForm: FormGroup;

  @ViewChild('detailsStep') step: TdStepComponent;

  @ViewChild('addressForm') addressForm: AddressFormComponent;
  addressFormData: Address;

  @Input('editMode') editMode: boolean;

  @Input('office') set office(office: Office) {
    this._office = office;
    this.prepareForm(office);
  }

  @Output('onSave') onSave = new EventEmitter<Office>();

  @Output('onCancel') onCancel = new EventEmitter<void>();

  constructor(private formBuilder: FormBuilder) {}

  prepareForm(office: Office): void {
    this.detailForm = this.formBuilder.group({
      identifier: [office.identifier, [Validators.required, Validators.minLength(3), Validators.maxLength(32), FimsValidators.urlSafe]],
      name: [office.name, [Validators.required, Validators.maxLength(256)]],
      description: [office.description, Validators.maxLength(2048)]
    });

    this.addressFormData = office.address;
  }

  ngOnInit(): void {
    this.step.open();
  }

  formsInvalid(): boolean {
    return ((this.editMode || !this.addressForm.pristine) && !this.addressForm.valid) || this.detailForm.invalid;
  }

  save(): void {
    const office: Office = {
      identifier: this.detailForm.get('identifier').value,
      name: this.detailForm.get('name').value,
      description: this.detailForm.get('description').value
    };

    if (this.addressForm.pristine) {
      office.address = this.office.address;
    } else {
      office.address = this.addressForm.formData;
    }

    this.onSave.emit(office);
  }

  cancel(): void {
    this.onCancel.emit();
  }

  get office(): Office {
    return this._office;
  }

}