// vim: set tw=80 ts=2 sw=2 sts=2 :
import { Component, OnInit, OnChanges, Input, Output, EventEmitter } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';

import { Operation } from './operation';

@Component({
  selector: 'operation-form',
  exportAs: 'operationForm',
  template: `
<form novalidate (keyup.enter)="submit()" [formGroup]="form">
  <div class="form-group row">
    <label class="col-sm-4 control-label" for="operation-date">Date</label>

    <div class="col-sm-8"
      [class.has-danger]="operationDate.errors">
      <input class="form-control"
        id="operation-date" formControlName="operationDate"
        [textMask]="{mask: dateMask}"
        placeholder="Operation date">

      <div class="help-block text-danger" *ngIf="operationDate.errors">
        <p *ngIf="operationDate.errors.required">The operation date is required.</p>
      </div>
    </div>
  </div>

  <div class="form-group row">
    <label class="col-sm-4 control-label" for="label">Label</label>

    <div class="col-sm-8"
      [class.has-danger]="label.errors">
      <input class="form-control"
        id="label" formControlName="label"
        placeholder="Label">

      <div class="help-block text-danger" *ngIf="label.errors">
        <p *ngIf="label.errors.required">The operation label is required.</p>
      </div>
    </div>
  </div>

  <div class="form-group row">
    <label class="col-sm-4 control-label" for="value">Montant</label>

    <div class="col-sm-8"
      [class.has-errors]="value.errors">
      <input class="form-control"
        id="value" formControlName="value"
        type="number" placeholder="Value">

      <div class="help-block text-danger" *ngIf="value.errors">
        <p *ngIf="value.errors.required">The operation value is required.</p>
      </div>
    </div>
  </div>

  <div class="form-group row">
    <label class="col-sm-4 control-label" for="category">Catégorie</label>

    <div class="col-sm-8"
      [class.has-errors]="category.errors">
      <input class="form-control"
        id="category" formControlName="category"
        placeholder="Category">

      <div class="help-block text-danger" *ngIf="category.errors">
        <p *ngIf="category.errors.required">The operation category is required.</p>
      </div>
    </div>
  </div>
</form>
  `
})
export class OperationFormComponent implements OnInit {
  public form: FormGroup;
  @Input() operation: Operation;
  @Output() submitEventEmitter: EventEmitter<void> = new EventEmitter<void>();

  //dateMask = [/\d{4}/, '-', /0[1-9]|1[0-2]/, '-', /[0-2]\d|3[0-1]/];
  dateMask = ['2', '0', /\d/, /\d/, '-', /[0-1]/, /\d/, '-', /[0-3]/, /\d/];

  constructor(private formBuilder: FormBuilder) {}

  ngOnInit() {
    this.form = this.formBuilder.group({
      operationDate: ['', Validators.required],
      label: ['', Validators.required],
      value: ['', Validators.required],
      category: ['', Validators.required],
    });

    this.form.patchValue({
      operationDate: this.operation.operation_date,
      label: this.operation.label,
      value: this.operation.value,
      category: this.operation.category,
    });
  }

  submit() {
    if(this.form.valid) {
      this.submitEventEmitter.emit();
    }
  }

  get operationDate() {
    return this.form.get('operationDate');
  }

  get label() {
    return this.form.get('label');
  }

  get value() {
    return this.form.get('value');
  }

  get category() {
    return this.form.get('category');
  }
}