feat: server-side pagination, search, and date filter for appointments

backend/src/controllers/appointment.controller.js

@@ -1,10 +1,10 @@
 import prisma from "../prisma/client.js";
-import {sendEmail} from "../utils/sendEmail.js";
-import {getEmailsByType} from "../utils/getEmailByTypes.js";
+import { sendEmail } from "../utils/sendEmail.js";
+import { getEmailsByType } from "../utils/getEmailByTypes.js";
 
 export const createAppointment = async (req, res) => {
 	try {
-		const {name, mobileNumber, email, message, date, doctorId, departmentId} =
+		const { name, mobileNumber, email, message, date, doctorId, departmentId } =
 			req.body;
 
 		if (!name || !mobileNumber || !doctorId || !departmentId || !date) {
@@ -71,26 +71,49 @@ export const createAppointment = async (req, res) => {
 
 export const getAppointments = async (req, res) => {
 	try {
-		const appointments = await prisma.appointment.findMany({
-			include: {
-				doctor: true,
-				department: true,
-			},
-			orderBy: {
-				createdAt: "desc",
-			},
-		});
+		const page = parseInt(req.query.page) || 1;
+		const limit = parseInt(req.query.limit) || 10;
+		const skip = (page - 1) * limit;
+		const { date, search } = req.query;
+
+		const where = {};
+
+		if (date) {
+			const start = new Date(date);
+			const end = new Date(date);
+			end.setDate(end.getDate() + 1);
+			where.date = { gte: start, lt: end };
+		}
+
+		if (search) {
+			where.OR = [
+				{ name: { contains: search, mode: "insensitive" } },
+				{ mobileNumber: { contains: search } },
+				{ email: { contains: search, mode: "insensitive" } },
+			];
+		}
+
+		const [appointments, total] = await Promise.all([
+			prisma.appointment.findMany({
+				where,
+				include: { doctor: true, department: true },
+				orderBy: { createdAt: "desc" },
+				skip,
+				take: limit,
+			}),
+			prisma.appointment.count({ where }),
+		]);
 
 		res.status(200).json({
 			success: true,
 			data: appointments,
+			pagination: { total, page, limit, totalPages: Math.ceil(total / limit) },
 		});
 	} catch (error) {
 		console.error(error);
-		res.status(500).json({
-			success: false,
-			message: "Failed to fetch appointments",
-		});
+		res
+			.status(500)
+			.json({ success: false, message: "Failed to fetch appointments" });
 	}
 };
 
@@ -98,7 +121,7 @@ export const getAppointments = async (req, res) => {
 
 export const getAppointment = async (req, res) => {
 	try {
-		const {id} = req.params;
+		const { id } = req.params;
 
 		const appointment = await prisma.appointment.findUnique({
 			where: {
@@ -134,7 +157,7 @@ export const getAppointment = async (req, res) => {
 
 export const getAppointmentsByDoctor = async (req, res) => {
 	try {
-		const {doctorId} = req.params;
+		const { doctorId } = req.params;
 
 		const appointments = await prisma.appointment.findMany({
 			where: {
@@ -166,7 +189,7 @@ export const getAppointmentsByDoctor = async (req, res) => {
 
 export const getAppointmentsByDepartment = async (req, res) => {
 	try {
-		const {departmentId} = req.params;
+		const { departmentId } = req.params;
 
 		const appointments = await prisma.appointment.findMany({
 			where: {
@@ -195,7 +218,7 @@ export const getAppointmentsByDepartment = async (req, res) => {
 
 export const updateAppointment = async (req, res) => {
 	try {
-		const {id} = req.params;
+		const { id } = req.params;
 
 		const appointment = await prisma.appointment.update({
 			where: {
@@ -226,7 +249,7 @@ export const updateAppointment = async (req, res) => {
 
 export const deleteAppointment = async (req, res) => {
 	try {
-		const {id} = req.params;
+		const { id } = req.params;
 
 		await prisma.appointment.delete({
 			where: {