import { FAS_DEFAULT_BUTTON_LIST } from './shared/const/fas-default-settings.const';
import { Component, inject, OnInit } from '@angular/core';
import { FASAdminService } from './fas-admin.service';
import {
  IFASAdminConfigInitializer,
  IFASButtonList,
} from './shared/models/fas-admin-models';
import jwtDecode from 'jwt-decode';

@Component({
  selector: 'lib-fas-admin',
  templateUrl: './fas-admin.component.html',
  styleUrl: './fas-admin.component.scss',
})
export class FASAdminComponent implements OnInit {
  private fasAdminService = inject(FASAdminService);
  public inputData?: IFASAdminConfigInitializer;
  public visableDefaultButtonList: IFASButtonList[] = [];
  public specButtonList: IFASButtonList[] = [];

  ngOnInit() {
    this.inputData = this.fasAdminService.getFasAdminConfigValue();
    this.visableDefaultButtonList = this.setSidebarButtons(
      this.inputData,
      FAS_DEFAULT_BUTTON_LIST,
      true
    );

    if (this.inputData.specButtonList)
      this.specButtonList = this.setSidebarButtons(
        this.inputData,
        this.inputData.specButtonList,
        false
      );
  }

  setSidebarButtons(
    configData: IFASAdminConfigInitializer,
    buttonList: IFASButtonList[],
    isDefaultList: boolean
  ): IFASButtonList[] {
    const token = localStorage.getItem('authToken');

    if (!token) {
      console.error('FASAdminComponent: No token found.');
      return isDefaultList ? buttonList : [];
    }

    // Decode token and extract user role
    const decodedToken: any = jwtDecode(token);
    const currentUserRole = decodedToken.Roles;

    const accessRules =
      configData.accessRules?.find((rule) => rule.role === currentUserRole) ??
      null;

    if (!accessRules) {
      console.error(
        `FASAdminComponent: No access rules found for role: ${currentUserRole}`
      );
      return [];
    }

    return buttonList.filter((button) =>
      accessRules.access.includes(button.routerUrl)
    );
  }
}