import { Component, Input } from '@angular/core';
import { FormGroup } from '@angular/forms';
import { FormArray, FormControl } from '@angular/forms';
import { FieldSet } from '../../models/datasetProfileAdmin/FieldSet';
import { Field } from '../../models/datasetProfileAdmin/Field';

@Component({
  selector: 'compositefield-form',
  templateUrl: './compositefield-form.component.html',
  styleUrls: ['./compositefield-form.component.scss']
})

export class CompositeFieldFormComponent {
  @Input() form: FormGroup;
  @Input() dataModel: FieldSet;
  @Input() indexPath: string;

  isComposite: boolean = false;
  isMultiplicityEnabled: boolean = false;

  constructon() { }

  ngOnInit() {
    //this.addNewField();
    if (this.form.get("multiplicity"))
      if (this.form.get("multiplicity").value.min > 1 || this.form.get("multiplicity").value.max > 1)
        this.isMultiplicityEnabled = true;
    this.isComposite = this.dataModel.fields.length > 1;
  }

  onIsCompositeChange(isComposite: boolean) {
    if (!isComposite && (<FormArray>this.form.get("fields")).length > 1) {
      for (let i = 0; i < (<FormArray>this.form.get("fields")).length - 1; i++) {
        (<FormArray>this.form.get("fields")).removeAt(1);
      }
      this.dataModel.fields.splice(1);
    }
  }

  onIsMultiplicityEnabledChange(isMultiplicityEnabled: boolean) {
    if (!isMultiplicityEnabled) {
      (<FormControl>this.form.get('multiplicity').get("min")).setValue(0);
      (<FormControl>this.form.get('multiplicity').get("max")).setValue(0);
    }
  }

  addNewField() {
    let field: Field = new Field();
    this.dataModel.fields.push(field);
    (<FormArray>this.form.get("fields")).push(field.buildForm());
  }

  DeleteField(index) {
    this.dataModel.fields.splice(index, 1);
    (<FormArray>this.form.get("fields")).removeAt(index);
  }
}