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import { Component, OnInit, Input, ViewChild, ElementRef, HostListener } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormGroup, FormControl, Validators } from '@angular/forms';
import { KratosUI, KratosNode } from '../../models/kratos.model';
import { ReactiveFormsModule } from '@angular/forms';
import { MaterialModule } from '../material.module';

@Component({
  selector: 'swc-auth-registration-form',
  standalone: true,
  imports: [
    CommonModule,
    ReactiveFormsModule,
    MaterialModule,
  ],
  templateUrl: './registration-form.component.html',
  styleUrls: ['./registration-form.component.scss'],
})
export class RegistrationFormComponent implements OnInit {
  @Input() formData?: KratosUI;
  @ViewChild('formElement') formElement!: ElementRef;
  formGroups: { [key: string]: FormGroup } = {};
  objectKeys = Object.keys;

  ngOnInit() {
    if (this.formData) {
      this.initializeFormGroups(this.formData);
    }
  }

  initializeFormGroups(formData: KratosUI) {
    const defaultGroup = new FormGroup({});
    formData.nodes.forEach((node: KratosNode) => {
      if (node.group === 'default') {
        this.createFormControl(node, defaultGroup);
      } else {
        if (!this.formGroups[node.group]) {
          this.formGroups[node.group] = new FormGroup({});
        }
        this.createFormControl(node, this.formGroups[node.group]);

        // Add default controls to this group
        Object.keys(defaultGroup.controls).forEach(key => {
          this.formGroups[node.group].addControl(key, (defaultGroup.controls as any)[key]);
        });
      }
    });
  }

  createFormControl(node: KratosNode, formGroup: FormGroup) {
    const control = new FormControl(
      node.attributes.value,
      node.attributes.required ? Validators.required : null
    );
    if (node.messages.length > 0) {
      control.setErrors({ 'customError': node.messages[0] });
    }