///
/// Copyright © 2016-2019 The Thingsboard Authors
///
/// Licensed 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, ComponentFactoryResolver, Inject, OnInit, SkipSelf, ViewChild} from '@angular/core';
import { ErrorStateMatcher } from '@angular/material/core';
import { MAT_DIALOG_DATA, MatDialogRef } from '@angular/material/dialog';
import {PageComponent} from '@shared/components/page.component';
import {Store} from '@ngrx/store';
import {AppState} from '@core/core.state';
import {FormControl, FormGroupDirective, NgForm} from '@angular/forms';
import {EntityTypeResource, EntityTypeTranslation} from '@shared/models/entity-type.models';
import {BaseData, HasId} from '@shared/models/base-data';
import {EntityId} from '@shared/models/id/entity-id';
import {TbAnchorComponent} from '@shared/components/tb-anchor.component';
import {EntityComponent} from './entity.component';
import {EntityTableConfig} from '@home/models/entity/entities-table-config.models';
import {AddEntityDialogData} from '@home/models/entity/entity-component.models';
import { DialogComponent } from '@shared/components/dialog.component';
import { Router } from '@angular/router';

@Component({
  selector: 'tb-add-entity-dialog',
  templateUrl: './add-entity-dialog.component.html',
  providers: [{provide: ErrorStateMatcher, useExisting: AddEntityDialogComponent}],
  styleUrls: ['./add-entity-dialog.component.scss']
})
export class AddEntityDialogComponent extends
  DialogComponent<AddEntityDialogComponent, BaseData<HasId>> implements OnInit, ErrorStateMatcher {

  entityComponent: EntityComponent<BaseData<HasId>>;
  detailsForm: NgForm;

  entitiesTableConfig: EntityTableConfig<BaseData<HasId>>;
  translations: EntityTypeTranslation;
  resources: EntityTypeResource;
  entity: BaseData<EntityId>;

  submitted = false;

  @ViewChild('entityDetailsForm', {static: true}) entityDetailsFormAnchor: TbAnchorComponent;

  constructor(protected store: Store<AppState>,
              protected router: Router,
              @Inject(MAT_DIALOG_DATA) public data: AddEntityDialogData<BaseData<HasId>>,
              public dialogRef: MatDialogRef<AddEntityDialogComponent, BaseData<HasId>>,
              private componentFactoryResolver: ComponentFactoryResolver,
              @SkipSelf() private errorStateMatcher: ErrorStateMatcher) {
    super(store, router, dialogRef);
  }

  ngOnInit(): void {
    this.entitiesTableConfig = this.data.entitiesTableConfig;
    this.translations = this.entitiesTableConfig.entityTranslations;
    this.resources = this.entitiesTableConfig.entityResources;
    this.entity = {};
    const componentFactory = this.componentFactoryResolver.resolveComponentFactory(this.entitiesTableConfig.entityComponent);
    const viewContainerRef = this.entityDetailsFormAnchor.viewContainerRef;
    viewContainerRef.clear();
    const componentRef = viewContainerRef.createComponent(componentFactory);
    this.entityComponent = componentRef.instance;
    this.entityComponent.isEdit = true;
    this.entityComponent.entitiesTableConfig = this.entitiesTableConfig;
    this.entityComponent.entity = this.entity;
    this.detailsForm = this.entityComponent.entityNgForm;
  }

  isErrorState(control: FormControl | null, form: FormGroupDirective | NgForm | null): boolean {
    const originalErrorState = this.errorStateMatcher.isErrorState(control, form);
    const customErrorState = !!(control && control.invalid && this.submitted);
    return originalErrorState || customErrorState;
  }

  cancel(): void {
    this.dialogRef.close(null);
  }

  add(): void {
    this.submitted = true;
    if (this.detailsForm.valid) {
      this.entity = {...this.entity, ...this.entityComponent.entityFormValue()};
      this.entitiesTableConfig.saveEntity(this.entity).subscribe(
        (entity) => {
          this.dialogRef.close(entity);
        }
      );
    }
  }
}