nobat724_front/app/doctor/[slug]/page.js

import { cache } from "react";
import DoctorPage from "@/components/doctor";
import Layout from "@/components/layout/StLayout";
import { notFound } from "next/navigation";
import { getStateInfo } from "@/lib/getStateInfo";
import { getEntityOrigin } from "@/lib/getCanonicalUrl";
import { extractEntityCityId, findCityById } from "@/lib/domainHelpers";
import { buildDoctorFaq } from "@/lib/specialtyContent";
import { isThinDoctor } from "@/lib/entityQuality";
import specialtiesData from "@/data/specialties.json";
import { safeJsonLd } from "@/lib/sanitize";
import { imageUrl } from "@/helper";

const API_URL = process.env.NEXT_PUBLIC_API_URL;
const FALLBACK_IMG = "/assets/images/og-image.png";

const getDoctor = cache(async (slug) => {
  if (!slug || slug === "undefined") return null;
  const res = await fetch(`${API_URL}/api/v1/doctor/${slug}`, {
    next: { revalidate: 3600, tags: [`doctor-${slug}`] },
  });
  if (res.status === 404 || res.status === 400) return null;
  if (!res.ok) throw new Error(`Failed to fetch doctor: ${res.status}`);
  const json = await res.json();
  return json?.data?.data ?? null;
});

const getDoctorAddresses = cache(async (doctorId) => {
  if (!doctorId) return [];
  try {
    const res = await fetch(`${API_URL}/api/v1/clinic-pro/doctor-addresses/${doctorId}`, {
      next: { revalidate: 3600, tags: [`doctor-addresses-${doctorId}`] },
    });
    if (!res.ok) return [];
    const json = await res.json();
    // پاسخ double-nested است: { success, data: { data: [...] } }
    return json?.data?.data ?? json?.data ?? [];
  } catch {
    return [];
  }
});

/**
 * محل‌های نوبت‌دهی پزشک (مطب شخصی + هر کلینیک). هر محل روش نوبت‌دهی و سرویس‌های
 * خودش را دارد؛ سرویس‌ها بین محل‌ها مشترک نیستند.
 */
const getBookingLocations = cache(async (doctorUuid) => {
  if (!doctorUuid) return [];
  try {
    const res = await fetch(
      `${API_URL}/api/v1/appointment-booking-locations/${doctorUuid}`,
      { next: { revalidate: 3600, tags: [`booking-locations-${doctorUuid}`] } }
    );
    if (!res.ok) return [];
    const json = await res.json();
    const data = json?.data?.data ?? json?.data ?? {};
    return Array.isArray(data.booking_locations) ? data.booking_locations : [];
  } catch {
    return [];
  }
});

export async function generateMetadata({ params }) {
  const { slug } = await params;
  const { matchedCity } = await getStateInfo();
  const siteName = matchedCity?.site_name || "نوبت 724";

  const doctor = await getDoctor(slug);
  if (!doctor) notFound();

  try {

    const specialtyNames = doctor.specialties?.map((s) => s.name).join(" و ") || "";
    const title = `دکتر ${doctor.name}${specialtyNames ? " | " + specialtyNames : ""} | ${siteName}`;
    const detailText = (doctor.detail || "")
      .replace(/<[^>]*>/g, "")
      .replace(/\s+/g, " ")
      .trim();
    const description = (
      detailText ||
      `رزرو نوبت آنلاین دکتر ${doctor.name}${specialtyNames ? " متخصص " + specialtyNames : ""}${doctor.address ? " | " + doctor.address : ""}`.trim()
    ).slice(0, 160);
    const image = imageUrl(doctor.img?.[0]?.url) || FALLBACK_IMG;
    // C1-b — پزشک به دامنهٔ شهر خودش canonical می‌شود، روی هر دامنه‌ای که سرو شود.
    const origin = await getEntityOrigin(extractEntityCityId(doctor));

    return {
      title,
      description,
      alternates: { canonical: `${origin}/doctor/${doctor.uuid}` },
      ...(isThinDoctor(doctor) && { robots: { index: false, follow: true } }),
      openGraph: {
        title,
        description,
        type: "profile",
        images: [image],
      },
      twitter: {
        card: "summary",
        title,
        description,
        images: [image],
      },
    };
  } catch (error) {
    // بازگشت خاموش، canonical و robots صفحه را بی‌صدا به fallback لایه می‌برد — لاگ لازم است.
    console.error(`[doctor/${slug}] generateMetadata failed:`, error);
    return {};
  }
}

async function Doctor({ params }) {
  const { slug } = await params;
  let comments = null;
  let rateAggregate = { point: 0, satisfaction: 0, averages: [] };

  const doctor = await getDoctor(slug);
  if (!doctor) notFound();

  // همان مقصد canonical — تا url/@id و breadcrumb سیگنال متناقض ندهند.
  const origin = await getEntityOrigin(extractEntityCityId(doctor));

  if (doctor) {
    try {
      const [resComments, resRate] = await Promise.all([
        fetch(`${API_URL}/api/v1/comments/${doctor.uuid}`, { cache: "no-store" }),
        fetch(`${API_URL}/api/v1/rate/${doctor.uuid}`, { cache: "no-store" }),
      ]);
      const [jsonComments, jsonRate] = await Promise.all([
        resComments.ok ? resComments.json() : null,
        resRate.ok ? resRate.json() : null,
      ]);
      comments = jsonComments?.data?.data;
      rateAggregate = jsonRate?.data?.data ?? rateAggregate;
    } catch (error) {}
  }

  const [addresses, bookingLocations] = doctor
    ? await Promise.all([getDoctorAddresses(doctor.id), getBookingLocations(doctor.uuid)])
    : [[], []];

  // آدرسی که در هیچ برنامهٔ نوبت‌دهی استفاده نشده، محل مراجعه نیست. در کارت
  // «موقعیت مکانی» می‌ماند (اطلاعات واقعی مطب است) ولی به JSON-LD نمی‌رود، چون
  // schema.org آن را محلی قابل‌مراجعه اعلام می‌کند.
  const bookableAddressUuids = new Set(
    bookingLocations.map((l) => l.location_uuid).filter(Boolean)
  );
  const bookableAddresses = addresses.filter((a) => bookableAddressUuids.has(a.uuid));

  // ساعات کاری per-location است؛ با uuid آدرس به هر محل وصل می‌شود.
  const openingHoursByLocation = bookingLocations.reduce((acc, location) => {
    if (location.location_uuid && location.opening_hours?.length) {
      acc[location.location_uuid] = location.opening_hours;
    }
    return acc;
  }, {});

  // سرویس‌های قابل رزرو، تجمیع‌شده از همهٔ محل‌ها و یکتاشده بر اساس uuid.
  const bookableServices = Object.values(
    bookingLocations
      .flatMap((location) => location.services ?? [])
      .reduce((acc, service) => {
        if (service?.uuid && !acc[service.uuid]) acc[service.uuid] = service;
        return acc;
      }, {})
  );

  const specialtyNames = doctor?.specialties?.map((s) => s.name).join(" و ") || "";
  const isUnclaimed = doctor?.owner_status !== "claimed";
  const jsonLd = doctor
    ? {
        "@context": "https://schema.org",
        "@type": "Physician",
        "@id": `${origin}/doctor/${doctor.uuid}#physician`,
        name: `دکتر ${doctor.name}`,
        url: `${origin}/doctor/${doctor.uuid}`,
        ...(specialtyNames && { medicalSpecialty: specialtyNames }),
        ...(doctor.img?.[0]?.url && {
          image: {
            "@type": "ImageObject",
            url: imageUrl(doctor.img[0].url),
          },
        }),
        ...(!isUnclaimed && Number(doctor.point) > 0 && {
          aggregateRating: {
            "@type": "AggregateRating",
            ratingValue: doctor.point,
            bestRating: "5",
            ratingCount: comments?.length || 1,
          },
        }),
        ...(comments?.length > 0 && {
          review: comments.slice(0, 5).map((c) => ({
            "@type": "Review",
            author: { "@type": "Person", name: c.author?.real_name || "بیمار" },
            reviewBody: c.comment,
            datePublished: new Date(c.created * 1000).toISOString(),
          })),
        }),
        ...(doctor.social_media && {
          sameAs: Object.values(doctor.social_media).filter(Boolean),
        }),
        ...(bookableServices.length > 0 && {
          availableService: bookableServices.map((service) => ({
            "@type": "MedicalProcedure",
            name: service.name,
            ...(service.duration_minutes && {
              estimatedDuration: `PT${service.duration_minutes}M`,
            }),
          })),
        }),
        ...(bookableAddresses.length > 0 && {
          workLocation: bookableAddresses.map((addr) => ({
            "@type": "MedicalClinic",
            name: addr.clinic_name || addr.name || `مطب دکتر ${doctor.name}`,
            address: {
              "@type": "PostalAddress",
              streetAddress: addr.address,
            },
            ...(addr.telephone && { telephone: addr.telephone }),
            ...(openingHoursByLocation[addr.uuid]?.length && {
              openingHoursSpecification: openingHoursByLocation[addr.uuid].map((shift) => ({
                "@type": "OpeningHoursSpecification",
                dayOfWeek: `https://schema.org/${shift.day}`,
                opens: shift.opens,
                closes: shift.closes,
              })),
            }),
            ...(addr.map?.latitude && addr.map?.longitude && {
              geo: {
                "@type": "GeoCoordinates",
                latitude: addr.map.latitude,
                longitude: addr.map.longitude,
              },
            }),
          })),
        }),
      }
    : null;

  const specialtyLabel = doctor?.specialties?.[0]?.name || "پزشکان";
  // مقصد تمیز صفحهٔ فرود تخصص؛ اگر تخصص slug نداشت، به لیست پزشکان برمی‌گردیم.
  const specialtySlug = specialtiesData.find(
    (item) => item.name === specialtyLabel && item.status === 1
  )?.slug;
  const specialtyItem = specialtySlug
    ? `${origin}/specialties/${specialtySlug}`
    : `${origin}/doctors`;

  const breadcrumbJsonLd = doctor
    ? {
        "@context": "https://schema.org",
        "@type": "BreadcrumbList",
        itemListElement: [
          { "@type": "ListItem", position: 1, name: "خانه", item: origin },
          { "@type": "ListItem", position: 2, name: specialtyLabel, item: specialtyItem },
          { "@type": "ListItem", position: 3, name: `دکتر ${doctor.name}` },
        ],
      }
    : null;

  // FAQPage عمداً script مستقل است — اسکیماهای Physician/Review/Geo نباید تحت تأثیر باشند.
  const doctorCity = findCityById(extractEntityCityId(doctor));
  const faq = doctor
    ? buildDoctorFaq(doctor.name, specialtyNames, doctorCity?.name)
    : [];
  const faqJsonLd = faq.length
    ? {
        "@context": "https://schema.org",
        "@type": "FAQPage",
        mainEntity: faq.map((item) => ({
          "@type": "Question",
          name: item.question,
          acceptedAnswer: { "@type": "Answer", text: item.answer },
        })),
      }
    : null;

  return (
    <>
      {jsonLd && (
        <script
          type="application/ld+json"
          dangerouslySetInnerHTML={{ __html: safeJsonLd(jsonLd) }}
        />
      )}
      {faqJsonLd && (
        <script
          type="application/ld+json"
          dangerouslySetInnerHTML={{ __html: safeJsonLd(faqJsonLd) }}
        />
      )}
      {breadcrumbJsonLd && (
        <script
          type="application/ld+json"
          dangerouslySetInnerHTML={{ __html: safeJsonLd(breadcrumbJsonLd) }}
        />
      )}
      <Layout>
        <DoctorPage
          doctor={doctor}
          comments={comments}
          rateAggregate={rateAggregate}
          addresses={addresses}
          bookableAddressUuids={[...bookableAddressUuids]}
          bookingLocations={bookingLocations}
          slug={slug}
          faq={faq}
        />
      </Layout>
    </>
  );
}

export default Doctor;