/**
 * @module module:lib/components/crud-form/crud-form.component
 * @description CRUD form component module.
 * @summary Provides `CrudFormComponent` — a wrapper that composes dynamic form
 * fields and layout to produce create/read/update/delete forms with validation
 * and submission handling.
 *
 * @link {@link CrudFormComponent}
 */

import { Component } from '@angular/core';
import { ReactiveFormsModule } from '@angular/forms';
import { IonButton, IonIcon } from '@ionic/angular/standalone';
import { TranslatePipe } from '@ngx-translate/core';
import { OperationKeys } from '@decaf-ts/db-decorators';
import { ComponentEventNames } from '@decaf-ts/ui-decorators';
import { Dynamic } from '../../engine/decorators';
import { DefaultFormReactiveOptions } from '../../engine/constants';
import { NgxFormDirective } from '../../engine/NgxFormDirective';
import { LayoutComponent } from '../layout/layout.component';

import { getModelAndRepository } from '../../engine/helpers';

@Dynamic()
@Component({
  standalone: true,
  selector: 'ngx-decaf-crud-form',
  templateUrl: './crud-form.component.html',
  styleUrls: ['./crud-form.component.scss'],
  imports: [TranslatePipe, ReactiveFormsModule, LayoutComponent, IonButton, IonIcon],
  host: { '[attr.id]': 'uid' },
})
export class CrudFormComponent extends NgxFormDirective {
  constructor() {
    super('CrudFormComponent');
  }

  /**
   * @description Component initialization lifecycle method.
   * @summary Initializes the component by setting up the logger, configuring form state
   * based on the operation type, and merging configuration options. For READ and DELETE
   * operations, the formGroup is set to undefined since these operations don't require
   * form input. Configuration options are merged with default settings.
   *
   * @returns {Promise<void>}
   * @memberOf CrudFormComponent
   */
  override async ngOnInit(): Promise<void> {
    this.options = Object.assign(
      {},
      DefaultFormReactiveOptions,
      { buttons: { submit: { text: this.operation.toLowerCase() } } },
      this.options || {},
    );
    if (!this.pk && this.modelName) {
      const repo = getModelAndRepository(this.modelName);
      if (repo) {
        this.pk = repo.pk;
      }
    }

    await super.initialize();
  }

  /**
   * @description Handles delete operations by emitting delete events.
   * @summary Processes delete requests by emitting a submit event with the
   * record's unique identifier as data. This allows parent components to
   * handle the actual deletion logic while maintaining separation of concerns.
   * The event includes the uid and standard component identification.
   *
   * @returns {void}
   * @memberOf CrudFormComponent
   */
  handleDelete(): void {
    super.submitEventEmit(
      this.model,
      'CrudFormComponent',
      ComponentEventNames.Submit,
      this.handlers,
      OperationKeys.DELETE,
    );
  }
}