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import PushNotifications from 'node-pushnotifications';
import debug from 'debug';
const log = debug('sender');
import { deleteSubscribers } from './http';
import { formatMessage, formatTitle, formatQuote } from './common/MessageUtils';
import config from 'config';

let cfg = /** @type { import('node-pushnotifications').Settings } */ (config);

const apnConfig = (production = true) => {
    const apn = {
        ...cfg.apn,
        token: {
            key: cfg.apn?.token?.key || process.env.JUICK_APN_KEY,
            keyId: cfg.apn?.token?.keyId || process.env.JUICK_APN_KEY_ID,
            teamId: cfg.apn?.token?.teamId || process.env.JUICK_APN_TEAM_ID
        },
        production: production
    };
    return apn;
};
const gcmConfig = {
    ...cfg.gcm,
    id: cfg.gcm?.id || process.env.JUICK_GCM_ID
};

const push = new PushNotifications({
    ...config,
    apn: apnConfig(true),
    gcm: gcmConfig,
});
const sandbox = new PushNotifications({
    ...config,
    apn: apnConfig(false),
    gcm: gcmConfig
});

/** @type {string} */
const application = config.get('service.application') || process.env.JUICK_APN_APPLICATION || '';

/**
 * send notification
 *
 * @param {PushNotifications.RegistrationId[]} productionIds
 * @param {PushNotifications.RegistrationId[]} sandboxIds
 * @param {PushNotifications.Data} data
 */
export function sendNotification(productionIds, sandboxIds, data) {
    [productionIds, sandboxIds].map((registrationIds, index) => {
        let sender = index == 0 ? push : sandbox;
        if (registrationIds && registrationIds.length) {
            sender.send(registrationIds, data)
                .then((results) => {
                    results.forEach(result => {
                        log(`${result.method}: ${result.success} success, ${result.failure} failure`);
                        if (result.failure) {
                            console.error(`${result.method} failure: ${JSON.stringify(result)}`);
                            console.error(`Failed data: ${JSON.stringify(data)}`);
                        }
                    });
                    results.filter(r => r.method === 'apn')
                        .forEach(async r => {
                            log(`Response message: ${JSON.stringify(r.message)}`);
                            let badTokens = r.message.filter(m => m.errorMsg === 'BadDeviceToken').map(m => {
                                return { 'type': 'apns', 'token': m.regId };
                            });
                            if (badTokens.length > 0) {
                                await deleteSubscribers(badTokens);
                                log(`${badTokens.length} APNS tokens deleted`);
                            }
                        });
                    results.filter(r => r.method === 'gcm')
                        .forEach(async r => {
                            let badTokens = r.message.filter(m => m.errorMsg === 'NotRegistered' || m.errorMsg === 'MismatchSenderId').map(m => {
                                return { 'type': 'gcm', 'token': m.regId };
                            });
                            if (badTokens.length > 0) {
                                await deleteSubscribers(badTokens);
                                log(`${badTokens.length} GCM tokens deleted`);
                            }
                        });
                    results.filter(r => r.method === 'mpns')
                        .forEach(async r => {
                            let badTokens = r.message.filter(m => m.errorMsg === 'The channel expired.').map(m => {
                                return { 'type': 'mpns', 'token': m.regId };
                            });
                            if (badTokens.length > 0) {
                                await deleteSubscribers(badTokens);
                                log(`${badTokens.length} MPNS tokens deleted`);
                            }
                        });
                })
                .catch((err) => { console.error(JSON.stringify(err)); });
        }
    });
}

/**
 * builds notification object
 *
 * @param {import('../client').SecureUser} user user
 * @param {import('../client').Message} msg message
 * @returns {PushNotifications.Data} notification template
 */
export function buildNotification(user, msg) {
    let template = {
        topic: application,
        custom: {
            message: msg
        },
        timeToLive: 0
    };
    let { tokens, ...subscriber } = user;
    if (msg.service) {
        template.contentAvailable = true;
        template.custom.service = true;
        template.custom.user = subscriber;
    } else {
        const avatar = `https://i.juick.com/a/${msg.user.uid}.png`;
        const title = formatTitle(msg);
        const body = `${formatQuote(msg)}\n${formatMessage(msg)}`;
        template.custom.mid = msg.mid;
        template.custom.rid = msg.rid;
        template.custom.uname = msg.user.uname;
        template.custom.avatarUrl = avatar;
        template.image1src = avatar;
        template.text1 = title;
        template.text2 = body;
        template.title = title;
        template.body = body;
        template.badge = user.unreadCount || 0;
        template.mutableContent = 1;
        template.color = '#3c77aa';
        template.icon = 'ic_notification';
        template.clickAction = 'com.juick.NEW_EVENT_ACTION';
        const tag = msg.mid == 0 ? msg.user.uname : msg.mid;
        template.tag = `${tag}`;
        template.android_channel_id = 'default';
    }
    return template;
}