class HydraParser {
  static parseCollection<T>(data: any, normalize: ((s: object) => T)): HydraCollection<T> {

    const view = data['hydra:view'] as any

    return {
      iri: data['@id'] as string,
      totalItems: parseInt(data['hydra:totalItems']) ?? 0,
      page: this.getPageFromIri(view['@id'] ?? ''),
      previousPage: this.getPageFromIri(view['hydra:previous'] ?? ''),
      nextPage: this.getPageFromIri(view['hydra:next'] ?? ''),
      firstPage: this.getPageFromIri(view['hydra:first'] ?? ''),
      lastPage: this.getPageFromIri(view['hydra:last'] ?? ''),
      items: data['hydra:member'].map((s: any) => { return normalize(s) }),
    }
  }

  private static getPageFromIri(iri: string): number | null {
    const match = iri.match(/page=(\d+)/)
    return match ? parseInt(match[1]) : null;
  }
}

export default HydraParser