const { onRequest } = require("firebase-functions/v2/https");
const logger = require("firebase-functions/logger");
const functions = require("firebase-functions");
const admin = require("firebase-admin");
const moment = require('moment');
const fs = require('fs');
const csv = require('csv-parser');
const html_to_pdf = require('html-pdf-node');

admin.initializeApp();

exports.registerUser = functions.region("asia-south1").https.onRequest(async (req, res) => {
    res.set('Access-Control-Allow-Origin', "*")
    res.set('Access-Control-Allow-Methods', 'GET, POST');

    if (req.method === "OPTIONS") {
        // stop preflight requests here
        res.set("Access-Control-Allow-Headers", "Content-Type, x-client");
        res.status(204).send('');
        return;
    }

    try {
        const token = "e16a1bd15af2ee640f5a7a18c8d8333f5f01f7c66e003bbc21ee52870f1bce27";
        logger.info(`User-Agent ${req.get("User-Agent")}`);
        logger.info(`token ${req.get("x-client")}`);
        if (req.get("x-client") !== token) {
            res.json({ status: "403", message: "auth error", result: "true" });
        }
        else {
            const { body } = req;
            const { _id } = body;
            logger.info(`_id ${_id}`);
            await admin
                .firestore()
                .collection("patientData")
                .add(Object.assign(Object.assign({}, body), { createdAt: moment().utcOffset("+05:30").format("YYYY-MM-DD HH:mm:ss") }))
            res.json({ status: "200" });
        }
    }
    catch (err) {
        logger.info(`error ${err}`);
        res.json({ status: "400", message: "some error.", result: "true" });
    }
});

exports.addBloodTest = functions.region("asia-south1").https.onRequest(async (req, res) => {
    res.set('Access-Control-Allow-Origin', "*")
    res.set('Access-Control-Allow-Methods', 'GET, POST');

    if (req.method === "OPTIONS") {
        // stop preflight requests here
        res.set("Access-Control-Allow-Headers", "Content-Type, x-client");
        res.status(204).send('');
        return;
    }

    try {
        const token = "e16a1bd15af2ee640f5a7a18c8d8333f5f01f7c66e003bbc21ee52870f1bce27";
        logger.info(`User-Agent ${req.get("User-Agent")}`);
        logger.info(`token ${req.get("x-client")}`);
        if (req.get("x-client") !== token) {
            res.json({ status: "403", message: "auth error", result: "true" });
        }
        else {
            const { body } = req;
            const { _id } = body;
            logger.info(`_id ${_id}`);
            await admin
                .firestore()
                .collection("testData")
                .add(Object.assign(Object.assign({}, body), { createdAt: moment().utcOffset("+05:30").format("YYYY-MM-DD HH:mm:ss") }))
            res.json({ status: "200" });
        }
    }
    catch (err) {
        logger.info(`error ${err}`);
        res.json({ status: "400", message: "some error.", result: "true" });
    }
});

exports.reportDownload = functions.region("asia-south1").https.onRequest(async (req, res) => {
    res.set('Access-Control-Allow-Origin', "*")
    res.set('Access-Control-Allow-Methods', 'GET, POST');

    if (req.method === "OPTIONS") {
        // stop preflight requests here
        res.set("Access-Control-Allow-Headers", "Content-Type, x-client");
        res.status(204).send('');
        return;
    }

    try {
        const token = "e16a1bd15af2ee640f5a7a18c8d8333f5f01f7c66e003bbc21ee52870f1bce27";
        logger.info(`User-Agent ${req.get("User-Agent")}`);
        logger.info(`token ${req.get("x-client")}`);
        if (req.get("x-client") !== token) {
            res.json({ status: "403", message: "auth error", result: "true" });
        }
        else {
            const { body } = req;
            const { data } = body;
            logger.info(`_id ${_id}`);
            const fileName = `${data["_id"]}.pdf`;
            // await makePdf();
            res.sendFile(fileName, options, function (err) {
                if (err) {
                    next(err);
                } else {
                    console.log('Sent:', fileName);
                }
            });
        }
    }
    catch (err) {
        logger.info(`error ${err}`);
        res.json({ status: "400", message: "some error.", result: "true" });
    }
});

/**
 * Triggered by a change to a Firestore document.
 *
 * @param {!Object} event Event payload.
 * @param {!Object} context Metadata for the event.
 */

// const functions = require("firebase-functions");
// const admin = require("firebase-admin");

// admin.initializeApp();

exports.kitAlert = async (event, context) => {
    const resource = context.resource;
    // log out the resource string that triggered the function
    console.log('Function triggered by change to: ' + resource);
    // now log the full event object
    console.log(JSON.stringify(event));
    const { kitSerial, classificationResult } = event.value.fields;
    console.log('kitSerial', kitSerial);
    console.log('classificationResult', classificationResult);
    if (classificationResult?.stringValue?.includes("Trait")) {
        const currentKitTests = await admin.firestore().collection("testData").where("kitSerial", "==", kitSerial.stringValue).get();
        const traitCount = 0;
        console.log(currentKitTests);
        currentKitTests.forEach((x) => {
            if (x.classificationResult?.includes("Trait")) {
                traitCount++;
            }
        });
        if (traitCount > 2) {
            await admin.firestore().collection("alerts").add({
                name: 'Kit Alert',
                traitCount: traitCount,
                message: `${kitSerial.stringValue} has ${traitCount} traits`
            });
        }
    }
};