import { Response } from "express";
import { eventManager, logger } from "../app";
import { LivebeatRequest } from "../lib/request";
import { IBeat } from "../models/beat/beat.interface";
import { Beat } from "../models/beat/beat.model.";
import { ISeverity } from "../models/notifications/notification.interface";
import { Phone } from "../models/phone/phone.model";

const timeouts: Map<string, NodeJS.Timeout> = new Map<string, NodeJS.Timeout>();

export async function GetBeatStats(req: LivebeatRequest, res: Response) {
    const phones = await Phone.find({ user: req.user?._id });
    const perPhone: any = {};
    let totalBeats = 0;

    for (let i = 0; i < phones.length; i++) {
        const beatCount = await Beat.countDocuments({ phone: phones[i] });
        perPhone[phones[i]._id] = {};
        perPhone[phones[i]._id] = beatCount;
        totalBeats += beatCount;
    }

    res.status(200).send({ totalBeats, perPhone });
}

export async function GetBeat(req: LivebeatRequest, res: Response) {
    const from: number = Number(req.query.from || 0);
    const to: number = Number(req.query.to || Date.now() / 1000);
    const limit: number = Number(req.query.limit || 10000);
    const sort: number = Number(req.query.sort || 1);   // Either -1 or 1
    const phoneId = req.query.phoneId;

    // Grab default phone if non was provided.
    const phone = req.query.phone === undefined ? await Phone.findOne({ user: req.user?._id }) : await Phone.findOne({ _id: phoneId, user: req.user?._id });
    let beats: IBeat[] = [];

    //console.log(from, to);
    //console.log(`Search from ${new Date(from).toString()} to ${new Date(to * 1000).toString()}`);

    if (phone !== null) {
        beats = await Beat.find(
            {
                phone: phone._id,
                createdAt: {
                    $gte: new Date((from)),
                    $lte: new Date(to * 1000)
                }
            }).sort({ _id: sort }).limit(limit);
        res.status(200).send(beats);
    } else {
        res.status(404).send({ message: 'Phone not found' });
    }
}

export async function AddBeat(req: LivebeatRequest, res: Response) {
    const beat = req.body as IBeat;
    const androidId = req.headers.deviceId as string;

    if (androidId === undefined) {
        res.status(401).send({ message: 'Device id is missing' });
    }

    // Get phone
    const phone = await Phone.findOne({ androidId });
    if (phone == undefined) {
        logger.warning(`Received beat from unknown device with id ${androidId}`);
        return;
    }

    let newBeat;
    if (beat.coordinate !== undefined && beat.accuracy !== undefined) {
        logger.info(`New beat from ${phone.displayName} => ${beat.coordinate[0]}, ${beat.coordinate[1]} | Height: ${beat.coordinate[3]}m | Speed: ${beat.coordinate[4]} | Accuracy: ${beat.accuracy}% | Battery: ${beat.battery}%`);

        newBeat = await Beat.create({
            phone: phone._id,
            // [latitude, longitude, altitude]
            coordinate: [beat.coordinate[0], beat.coordinate[1], beat.coordinate[2]],
            accuracy: beat.coordinate[3],
            speed: beat.coordinate[4],
            battery: beat.battery,
            createdAt: Date.now()
        });
    
    }

    newBeat = await Beat.create({
        phone: phone._id,
        battery: beat.battery,
        createdAt: Date.now()
    });

    // Broadcast if device became active
    if (timeouts.has(phone.id)) {
        clearTimeout(timeouts.get(phone.id)!!);
    } else {
        phone.active = true;
        await phone.save();

        eventManager.push('phone_alive', phone.toJSON(), phone.user);
    }

    const timeoutTimer = setTimeout(async () => {
        eventManager.push('phone_dead', phone.toJSON(), phone.user, ISeverity.WARN);
        timeouts.delete(phone.id);
        phone.active = false;
        await phone.save();
    }, 60_000);
    timeouts.set(phone.id, timeoutTimer);

    eventManager.push('beat', newBeat.toJSON(), phone.user);
}