import { Pipe, PipeTransform, inject } from '@angular/core';
import { LanguageService } from '../services/language.service';

@Pipe({
  name: 'langRoute',
  pure: false
})
export class LangRoutePipe implements PipeTransform {
  private langService = inject(LanguageService);

  transform(value: string | (string | number)[]): string | (string | number)[] {
    const lang = this.langService.currentLanguage();

    if (typeof value === 'string') {
      return value === '/' ? `/${lang}` : `/${lang}${value}`;
    }

    if (Array.isArray(value) && value.length > 0) {
      const [first, ...rest] = value;
      return [`/${lang}${first}`, ...rest];
    }

    return value;
  }
}