console.log('=================================================================');
console.log('hello and welcome to the file converter from Mastodon outbox JSON');
console.log('=================================================================');

const express = require('express');

const pug = require('pug');
const app = express();
var fs = require('fs');
var listenPort = 8088;
var jsonParsedLikes, jsonParsedOutbox;
// const min_length = 1050; // filter only long toots
const min_length = 1; // filter only long toots
const max_toots = 10; // filter only long toots
const filterBiggerTottsBeforeSlicing = false; // filter only long toots
const filterOnlyHavingMedias = true; // filter only toots having medias
const writeStatsJson = false; // filter only toots having medias
const showMostRecentTootsOnTop = true; // filter only toots having medias
const TemplateVars = {
  pageTitle       : 'Mastodon export converter to HTML',
  likes           : jsonParsedLikes,
  outbox          : jsonParsedOutbox,
  outboxStatistics: {},
  outbox_all      : jsonParsedOutbox,
  min_length,
  max_toots,
  filterOnlyHavingMedias,
  filterBiggerTottsBeforeSlicing,
  writeStatsJson,
  showMostRecentTootsOnTop
};

const masto_converter = require('./conversion');
console.log('masto_converter', masto_converter);
masto_converter.conversion.hello();

jsonParsedLikes = masto_converter.conversion.likes();

fs.readFile('source_data/outbox.json',
  // callback function that is called when reading file is done
  function (err, data) {
    let toots;
    // parse json
    jsonParsedOutbox = JSON.parse(data);
    toots = jsonParsedOutbox.orderedItems;
    // access elements
    console.log('outbox toots length', toots.length);

    TemplateVars.outboxTotalLength = toots.length;
    toots = jsonParsedOutbox.orderedItems;
    if (filterOnlyHavingMedias) {
      toots = masto_converter.conversion.filterOnlyTootsWithMedias(toots);
      console.log('toots.length only attachements', toots.length );
    }
    toots = masto_converter.conversion.filterToots(toots, TemplateVars);

    console.log('min_chars', min_length);
    console.log('toots min char corresponding', toots.length);
    TemplateVars.outbox = toots;
    TemplateVars.outboxStatistics = masto_converter.conversion.makeStatsForToots(toots);

    const example = TemplateVars.outbox[1]['object'];
    TemplateVars.example = example;
    console.log('example', example)

    if (writeStatsJson) {
      fs.writeFile('output/statistics.json', JSON.stringify(TemplateVars.outboxStatistics), errfileHandler);
    }
  });
const errfileHandler = (err) => {
  if (err)
    console.log(err);
  else {
    console.log('File statistics written successfully\n');
  }
};

app.use(express.static('public'));
app.set('view engine', 'pug');

app.get('/', (req, res) => {

  const html = pug.render('index.pug', TemplateVars);

  fs.writeFile('output/my_toots.html', html, errfileHandler);

  res.render('index.pug', TemplateVars);

});

app.listen(listenPort, () => console.log(`Server is live at http://localhost:${listenPort}`));

console.log('=================================================================');
console.log('made by Tykayn from CipherBliss - https://mastodon.cipherbliss.com/@tykayn');
console.log('=================================================================');