import DoctorsPage from "@/components/doctors";
import Layout from "@/components/layout/StLayout";
import { buildDoctorParams } from "@/helper";
import { getStateInfo } from "@/lib/getStateInfo";
import { fetchReq } from "@/lib/req";

export async function generateMetadata() {
  const { matchedCity, matchedState } = await getStateInfo();
  const siteName = matchedCity?.site_name || "نوبت 724";
  const cityName = matchedCity?.name || matchedState?.name || "";
  const title = cityName
    ? `پزشکان ${cityName} | جستجو و رزرو نوبت | ${siteName}`
    : `جستجوی پزشک و رزرو نوبت آنلاین | ${siteName}`;
  const description = cityName
    ? `لیست پزشکان متخصص در ${cityName}. جستجو بر اساس تخصص و منطقه. رزرو آنلاین نوبت پزشکی در ${cityName}.`
    : `جستجوی پزشکان متخصص در سراسر کشور. رزرو آنلاین نوبت پزشکی سریع و آسان با نوبت 724.`;
  const image = "https://www.nobat724.com/assets/images/logo.png";
  return {
    title,
    description,
    openGraph: { title, description, images: [image] },
    twitter: { card: "summary_large_image", title, description, images: [image] },
  };
}

async function Doctors({ searchParams }) {
  const awaitedSearchParams = await searchParams;
  const { matchedCity, matchedState, isRoot } = await getStateInfo();
  const API_URL = process.env.NEXT_PUBLIC_API_URL;

  let doctors = null;
  const stateParams = awaitedSearchParams.state;
  const cityParams = awaitedSearchParams.city;

  try {
    let newSearchParams = awaitedSearchParams;

    // Conditional State — روی دامنهٔ ریشه (nobat724) فیلتر اعمال نمی‌شود.
    if (stateParams) newSearchParams.state = stateParams;
    else if (matchedState && !isRoot) newSearchParams.state = matchedState.name;

    // Conditional City
    if (cityParams) newSearchParams.city = cityParams;
    else if (matchedCity && !isRoot) newSearchParams.city = matchedCity.name;

    const params = buildDoctorParams(newSearchParams);

    doctors = await fetchReq(`${API_URL}/api/v1/doctors`, {
      params,
    });
  } catch (error) {
    console.error("Error fetching doctors:", error);
  }

  return (
    <Layout>
      <DoctorsPage
        list={doctors}
        params={searchParams}
        matchedCity={matchedCity}
        matchedState={matchedState}
      />
    </Layout>
  );
}

export default Doctors;