// JavaScript Document
exports.onesignal_transfer_subscription = async function (options) {
    // get appid parsed as options.appid, throw error is missing
    const appid = this.parseOptional(options.appid, '*', process.env.ONESIGNAL_APP_ID)
    // log before and after vlaues
    console.log('App id: ' + options.appid + " => " + appid)

    var subscription_id = this.parseRequired(options.subscription_id, '*', 'Subscription ID not specified')
    console.log('Subscription_id: ' + options.subscription_id + " => " + subscription_id)

    var alias_id = this.parseOptional(options.alias_id, '*', null)
    console.log('alias_id: ' + options.alias_id + " => " + alias_id)

    const fetch = require('node-fetch');

    const url = `https://api.onesignal.com/apps/${appid}/subscriptions/${subscription_id}/owner`;
    const os_options = {
        method: 'PATCH',
        headers: { accept: 'application/json', 'content-type': 'application/json' },
        Authorization: `Basic ${process.env.ONESIGNAL_REST_API_KEY}`,
        body: JSON.stringify({ identity: { onesignal_id: alias_id } })
    };

    return fetch(url, os_options)
        .then(res => {

            return res.json().then(json => {
                json.status = res.status; // Add status to json response
                return json;
            });
        })
        .catch(err => console.error('Error:', err));
}