import { Component, input, forwardRef } from '@angular/core';
import { ControlValueAccessor, NG_VALUE_ACCESSOR, ReactiveFormsModule } from '@angular/forms';
import { CommonModule } from '@angular/common';

@Component({
  selector: 'app-input',
  standalone: true,
  imports: [CommonModule, ReactiveFormsModule],
  providers: [
    {
      provide: NG_VALUE_ACCESSOR,
      useExisting: forwardRef(() => AppInputComponent),
      multi: true
    }
  ],
  templateUrl: './app-input.component.html',
  styleUrl: './app-input.component.scss'
})
export class AppInputComponent implements ControlValueAccessor {
  label = input<string>('');
  id = input<string>('input-' + Math.random().toString(36).substr(2, 9));
  type = input<string>('text');
  placeholder = input<string>('');
  error = input<string | null>(null);
  required = input<boolean>(false);

  value: string = '';
  disabled = false;

  onChange: any = () => {};
  onTouched: any = () => {};

  writeValue(obj: any): void { this.value = obj || ''; }
  registerOnChange(fn: any): void { this.onChange = fn; }
  registerOnTouched(fn: any): void { this.onTouched = fn; }
  setDisabledState(isDisabled: boolean): void { this.disabled = isDisabled; }
  
  onInput(event: Event) {
    const val = (event.target as HTMLInputElement).value;
    this.value = val;
    this.onChange(val);
  }
}