doctorRoutes.js

const { getPatientByID, getAppointmentsByDoctorID, completeAppointmentByDoctor } = require("./database.js");


module.exports = function (app, passport, renderTemplate) {

    function checkDoctorAuthenticated(req, res, next) {
        if (req.isAuthenticated() && req.user && req.user.role == "doctor") {
            return next();
        }
        req.session.returnTo = req.originalUrl;
        return res.redirect("/doctor/login");
    }

    function checkDoctorNotAuthenticated(req, res, next) {
        if (req.isAuthenticated() && req.user.role == "doctor") {
            return res.redirect("/doctor");
        }
        return next();
    }

    app.get("/doctor", async (req, res) => {
        renderTemplate(req, res, "pages/doctor/index");
    });

    // Get login
    app.get("/doctor/login", checkDoctorNotAuthenticated, (req, res) => {
        if (req.user && req.user.role == "doctor") res.redirect("/doctor");
        else renderTemplate(req, res, "pages/doctor/login");
    });

    app.post("/doctor/login", checkDoctorNotAuthenticated, passport.authenticate("doctor", {
        successReturnToOrRedirect: "/doctor",
        failureRedirect: "/doctor/login",
        failureFlash: true
    }));

    app.get("/doctor/logout", checkDoctorAuthenticated, (req, res) => {
        req.logOut();
        req.flash("message", { type: "success", title: "Logout Successfull", text: "You have been logged out successfully." });
        return res.redirect("/doctor");
    });

    app.get("/doctor/viewappointments", checkDoctorAuthenticated, async (req, res) => {
        let appointments = await getAppointmentsByDoctorID(req.user.id);
        let patientIDs = [];
        appointments.forEach(({ patient_id }) => {
            if (!patientIDs.includes(patient_id)) patientIDs.push(patient_id);
        });

        let patients = [];
        patientIDs.forEach(id => patients.push(getPatientByID(id)));
        patients = await Promise.all(patients);
        return renderTemplate(req, res, "pages/doctor/viewappointments", { appointments, patients });
    });

    app.post("/doctor/completeappointment", checkDoctorAuthenticated, async (req, res) => {
        let id = req.body.id;
        function showError(title, text) {
            req.flash("message", { type: "danger", title, text });
            return res.redirect("/doctor/viewappointments");
        }

        if (!id) {
            showError("Error", "Unable to mark appointment as complete.");
            return;
        }

        try {
            let response = await completeAppointmentByDoctor(id, req.user.id);
            if (response) {
                req.flash("message", { type: "success", title: "Success", text: "The appointment was marked as completed." });
                return res.redirect("/doctor/viewappointments");
            }
            req.flash("message", { type: "danger", title: "Error", text: "An error occured when marking appointment as complete." });
            return res.redirect("/doctor/viewappointments");
        } catch (err) {
            console.log(err);
        }
        return res.redirect("/doctor/viewappointments");
    });
};