🚀 feat(api/admin): implement hospital data retrieval with pagination …

…and role-based access control

app/api/admin/hospitals/route.ts

@@ -0,0 +1,93 @@
+import dbConfig from "@utils/db";
+import { decrypt } from "@sessions/sessionUtils";
+import Hospital from "@models/hospital";
+
+export interface HospitalDetails {
+  id: string;
+  profile: string;
+  name: string;
+  username: string;
+  contact: string;
+  city: string;
+  state: string;
+}
+
+export async function GET(request: Request) {
+  const session = request.headers.get("Authorization");
+  if (!session) {
+    return Response.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  try {
+    const token = session.split("Bearer ")[1];
+    const decryptedUser = await decrypt(token);
+    const role = decryptedUser.user.role;
+
+    if (role !== "admin") {
+      return Response.json(
+        {
+          error:
+            "Forbidden: You do not have the necessary permissions to access this resource.",
+        },
+        { status: 403 }
+      );
+    }
+
+    await dbConfig();
+
+    // parse query parameters for pagination
+    const url = new URL(request.url);
+    const page = parseInt(url.searchParams.get("page") || "1");
+    const limit = parseInt(url.searchParams.get("limit") || "10");
+    const skip = (page - 1) * limit;
+
+    // Count total hospitals before applying skip and limit
+    const totalHospitals = await Hospital.countDocuments();
+    let hospitals = [];
+    if (skip < totalHospitals) {
+      const hospitalsPipeline = [
+        {
+          $project: {
+            profile: 1,
+            name: { $concat: ["$firstname", " ", "$lastname"] },
+            username: 1,
+            contact: 1,
+            "address.city": 1,
+            "address.state": 1,
+          },
+        },
+        { $skip: skip },
+        { $limit: limit },
+      ];
+
+      hospitals = await Hospital.aggregate(hospitalsPipeline);
+    }
+
+    // Map results to HospitalDetails
+    const hospitalDetails: HospitalDetails[] = hospitals.map((hospital) => ({
+      id: hospital._id.toString(),
+      profile: hospital.profile || "",
+      name: hospital.name,
+      username: hospital.username,
+      contact: hospital.contact || "",
+      city: hospital.address?.city || "",
+      state: hospital.address?.state || "",
+    }));
+
+    const totalPages = Math.ceil(totalHospitals / limit);
+
+    const paginationMetadata = {
+      currentPage: page,
+      pageSize: limit,
+      totalPages: totalPages,
+      totalCount: totalHospitals,
+    };
+    return Response.json({
+      hospitals: hospitalDetails,
+      pagination: paginationMetadata,
+    });
+  } catch (error) {
+    console.error("Error fetching Hospital data:", error);
+    return Response.json({ error: "Internal Server Error" }, { status: 500 });
+  }
+}