import * as fs from "fs";
import utils from "../utils";
import parserConfig from "../config";
import fetch from 'node-fetch';

let utilsTools = new utils();

console.log('importation depuis le fichier local de l\' agenda du libre');
let filepath = './output/adl_json.json'
let filecontent;
let counterOfEventsToAdd = 0;
const addEventQuery = utilsTools.agendadulibre.addQuery;
const runCreationQuery = utilsTools.runCreationQuery;

async function runImportEvents() {


    console.log('File exists');
    // build list of existing events in mobilizon database

    await utilsTools.setupClientPostgresql();
    await utilsTools.client.connect();
    console.log('✅ OK connecté à postgresql');
    console.log(' ');
    const res = await utilsTools.client.query('SELECT * from events');
    console.log('💾 évènements enregistrés dans mobilizon : ', res.rows.length);
    res.rows.forEach((bdd_event: any) => {
        if (utilsTools.localMobilizonEventsByTitle.indexOf(utilsTools.agendadulibre.uniqTitleBDD(bdd_event)) === -1) {

            utilsTools.localMobilizonEventsByTitle.push(utilsTools.agendadulibre.uniqTitleBDD(bdd_event));
        }
    })

    console.log('utilsTools.localMobilizonEventsByTitle', utilsTools.localMobilizonEventsByTitle.length);
    // get json file for ADL
    await fs.readFile(filepath, 'utf8', function (err, data) {
        if (err) {
            return console.log('readFile ERROR', err);
        }
        filecontent = JSON.parse(data)
        filecontent = filecontent.slice(0, parserConfig.max_new_events_in_scrapping)
        console.log('events in the scrapped json', filecontent.length);

        let ii = 0;
        filecontent.forEach((event: any) => {
            ii++
            // compare events with existing events
            let eventAlreadyExists = utilsTools.agendadulibre.doesEventExistsFromJsonScrap(event);
            if (!eventAlreadyExists) {
                if (parserConfig.debug) {
                    console.log('ajouter l event ', utilsTools.agendadulibre.uniqTitle(event));
                }
                let newQuery = utilsTools.agendadulibre.addQueryFromJsonScrap(event);
                utilsTools.newEvents.push({
                    event,
                    newQuery
                });
            }
        })
        // console.log('utilsTools.localMobilizonEventsByTitle', utilsTools.localMobilizonEventsByTitle);
        console.log('end  looking for events');

// import only new events
        console.log('nouveaux évènements à ajouter: ', utilsTools.newEvents.length);
        let limiter = parserConfig.limit_persistence_of_new_events;
        let counter = 0;
        let counter_max = Math.max(parserConfig.max_new_events,utilsTools.newEvents.length);

        utilsTools.newEvents.forEach((pair: any) => {
            let graphQLquery = pair.newQuery;

            if (limiter && counter < parserConfig.max_new_events) {
                counter++;
                console.log(counter, ' * ', utilsTools.agendadulibre.uniqTitle(pair.event));

                const body = {
                    operationName: "createEvent",
                    query: graphQLquery.query,
                    variables: graphQLquery.variables
                }

                if (parserConfig.enableFetch) {
                    let url: string = parserConfig.dev_mode ? parserConfig.dev_url : parserConfig.mobilizon_public_url;
                    let options: any = {
                        method: "post",
                        body: JSON.stringify(body),
                        headers: {
                            "Content-Type": "application/json",
                            "authorization": "Bearer " + parserConfig.bearer_token,
                        }
                    }
                    if (!utilsTools.agendadulibre.doesEventExistsFromJsonScrap(pair.event)) {
                        console.log('ajouter');
                        // add a little delay between creations

                        fetchEvent(url, options, counter, counter_max, pair.event)
                    } else {
                        console.log('nope');
                    }
                } else {
                    console.log('---- le fetch est désactivé');
                }


            }
        })
// end running queries
    });

}
let timeout;
const fetchEvent = (theUrl, theOptions, counter, counter_max, event) => {
    let BearerIsOK = true;
    timeout = setTimeout(
        function () {
            console.log(counter,'/', counter_max,' fetch start - ' + event.title + ' ' + event.start_time);
            if(BearerIsOK){

            fetch(theUrl, theOptions)
                .then((res: any) => {
                    let status = res.status;
                    console.log('  status', status);
                    if (status === 401) {
                        console.error(' /!\\ ------------------ ERROR: Bearer token invalid ------------------')

                        clearTimeout(timeout);

                    } else if (status === 200) {
                        console.log('  succès - ' + event.title + ' ' + event.start_time);

                    }
                    // console.log('  res', res);
                    return res.json()
                })
                .then((json: any) => console.log(counter,'/', counter_max, 'DONE'))
                .catch((err: any) => {
                    console.log(err)
                    BearerIsOK = false;
                })

            }
        }.bind(this)
        ,
        1000 * counter
    )

}

runImportEvents();