import { Injectable, Injector, InjectFlags } from '@angular/core';
import { FormGroup, FormControl, Validators } from '@angular/forms';
import { IDynamicBaseControl, IDyanmicHelpControl, DYNAMIC_CONTROL_TYPE } from '../interfaces/dynamic-control.interface';
import { DynamiControlGroupHttpInterface, DynamiControlGroupHttpToken } from '../interfaces/dynamic-control-group-http.interface';
import { Observable } from 'rxjs';

@Injectable()
export class DynamicControlGroupService {

  httpService: DynamiControlGroupHttpInterface;

  constructor(private injector: Injector) {
    this.httpService = this.injector.get<DynamiControlGroupHttpInterface>(DynamiControlGroupHttpToken, null, InjectFlags.Optional);
  }

  // toFormGroup(formControls: Array<IDynamicBaseControl>, originalForm: FormGroup) {
  //   if (!originalForm) {
  //     originalForm = new FormGroup({});
  //   }
  //   formControls.forEach(control => {
  //     originalForm.addControl(control.labelCode, new FormControl(''));
  //     if (control.control.controlType === DYNAMIC_CONTROL_TYPE.HELP) {
  //       const helpControl = control as IDyanmicHelpControl;
  //       originalForm.addControl(helpControl.control.hiddenInputName, new FormControl(''));
  //     }
  //   });
  //   return originalForm;
  // }

  getFormControlsByUri(uri: string): Observable<IDynamicBaseControl[]>{
    return this.httpService.getData(uri);
  }

  toFormValue(formControls: Array<IDynamicBaseControl>, initialData: any) {
    const initialDataKeys = Object.keys(initialData);
    formControls.forEach(control => {
      if (!initialDataKeys.some(item=>item==control.labelCode)) {
        Object.defineProperty(initialData, control.labelCode, { value: '' });
      }
      if (control.control.controlType === DYNAMIC_CONTROL_TYPE.HELP) {
        let helpControl = control as IDyanmicHelpControl;
        if (!initialDataKeys.some(item=>item==helpControl.control.hiddenInputName)) {
          Object.defineProperty(initialData, helpControl.control.hiddenInputName, { value: '' });
        }
      }
    });
    return initialData;
  }

}