// API endpoint to process email user actions - urls we send in emails to users

import { getToken } from "next-auth/jwt";
import type { NextApiRequest, NextApiResponse } from 'next';
import { createRouter, expressWrapper } from "next-connect";
const common = require('../../src/helpers/common');
const email = require('../../src/helpers/');

const handlebars = require("handlebars");

const router = createRouter<NextApiRequest, NextApiResponse>();


//action to accept coverme request from email


/**
 * 
 * @param req import { NextApiRequest, NextApiResponse } from 'next'
 * @param res import { NextApiRequest, NextApiResponse } from 'next'
 */
export default async function handler(req, res) {
    const prisma = common.getPrismaClient();

    var action = req.query.action;
    // Retrieve and validate the JWT token
    const token = await getToken({ req: req });

    //response is a special action that does not require a token
    if (action !== "email_response") {
        if (!token) {
            // If no token or invalid token, return unauthorized status
            return res.status(401).json({ message: "Unauthorized to call this API endpoint" });
        }
    }

    var userId = req.query.userId;
    var email = req.query.email;
    let date = new Date();

    if (!userId && !email) {
        return res.status(400).json({ message: "User ID or email is not provided" });
    }
    // Retrieve the user
    const user = await prisma.publisher.findUnique({
        where: {
            id: userId,
            email: email
        }
    });
    if (!user) {
        return res.status(404).json({ message: "User not found" });
    }

    switch (action) {
        case "send_coverme_request":
            // Send CoverMe request to the user
            //get from POST data: shiftId, assignmentId, date
            let shiftId = req.body.shiftId;
            let assignmentId = req.body.assignmentId;
            let date = req.body.date;

            console.log("User: " + user.email + " sent a CoverMe request: " +
                shiftId + " " + assignmentId + " " + date);

            //get all subscribed publisers
            const subscribedPublishers = await prisma.publisher.findMany({
                where: {
                    isSubscribedToCoverMe: true
                }
            });
            //send email to all subscribed publishers
            for (let i = 0; i < subscribedPublishers.length; i++) {
                //send email to subscribed publisher
                //send email to subscribed publisher
                const emailResponse = await common.sendEmail(subscribedPublishers[i].email, "CoverMe Request",
                    "User: " + user.email + " sent a CoverMe request: " +
                    shiftId + " " + assignmentId + " " + date);
            }

            break;
        case "coverme_accept":
            // Update the user status to accepted
            console.log("User: " + user.firstName + " " + user.lastName + " accepted the CoverMe request");
            //validate shiftId and assignmentId
            let shiftId = req.query.shiftId;
            let assignmentId = req.query.assignmentId;
            if (!shiftId || !assignmentId) {
                return res.status(400).json({ message: "Shift ID or Assignment ID is not provided" });
            }

            //get the assignment
            const assignment = await prisma.assignment.findUnique({
                where: {
                    id: parseInt(assignmentId)
                }
            });
            if (!assignment) {
                return res.status(404).json({ message: "Assignment not found" });
            }
            if (assignment.shiftId != parseInt(shiftId)) {
                return res.status(400).json({ message: "Shift ID does not match" });
            }




            // await prisma.user.update({
            //     where: {
            //         id: parseInt(userId)
            //     },
            //     data: {
            //         status: "accepted",
            //         acceptedAt: date
            //     }
            // });
            break;

        //POST
        case "send_report": //we can send report form in the emails to the user. process the POSTED data here
            // Send report form to the user
            //get from POST data: locationId, date, placementCount, videoCount, returnVisitInfoCount, conversationCount
            let locationId = req.body.locationId;
            let date = req.body.date;
            let placementCount = req.body.placementCount;
            let videoCount = req.body.videoCount;
            let returnVisitInfoCount = req.body.returnVisitInfoCount;
            let conversationCount = req.body.conversationCount;

            console.log("User: " + user.email + " sent a report: " +
                locationId + " " + date + " " +
                placementCount + " " + videoCount + " " +
                returnVisitInfoCount + " " + conversationCount);

            //save the report in the database
            await prisma.report.create({
                data: {
                    userId: parseInt(userId),
                    locationId: parseInt(locationId),
                    date: date,
                    placementCount: parseInt(placementCount),
                    videoCount: parseInt(videoCount),
                    returnVisitInfoCount: parseInt(returnVisitInfoCount),
                    conversationCount: parseInt(conversationCount)
                }
            });

            break;

        default:
            return res.status(400).json({ message: "Invalid action" });
    }
    return res.status(200).json({ message: "User action processed" });
}

router.use(expressWrapper(handler));