Migrate models to TypeScript

Co-authored-by: David Mehren <dmehren1@gmail.com>
Co-authored-by: Yannick Bungers <git@innay.de>
Co-authored-by: Philipp Hochkamp <me@phochkamp.de>
Co-authored-by: nzbr <mail@nzbr.de>

Signed-off-by: David Mehren <dmehren1@gmail.com>

lib/models/index.js

@@ -1,61 +0,0 @@
-'use strict'
-// external modules
-var fs = require('fs')
-var path = require('path')
-var Sequelize = require('sequelize')
-const { cloneDeep } = require('lodash')
-
-// core
-var config = require('../config')
-var logger = require('../logger')
-
-var dbconfig = cloneDeep(config.db)
-dbconfig.logging = config.debug ? (data) => {
-  logger.info(data)
-} : false
-
-var sequelize = null
-
-// Heroku specific
-if (config.dbURL) {
-  sequelize = new Sequelize(config.dbURL, dbconfig)
-} else {
-  sequelize = new Sequelize(dbconfig.database, dbconfig.username, dbconfig.password, dbconfig)
-}
-
-// [Postgres] Handling NULL bytes
-// https://github.com/sequelize/sequelize/issues/6485
-function stripNullByte (value) {
-  value = '' + value
-  // eslint-disable-next-line no-control-regex
-  return value ? value.replace(/\u0000/g, '') : value
-}
-sequelize.stripNullByte = stripNullByte
-
-function processData (data, _default, process) {
-  if (data === undefined) return data
-  else return data === null ? _default : (process ? process(data) : data)
-}
-sequelize.processData = processData
-
-var db = {}
-
-fs.readdirSync(__dirname)
-  .filter(function (file) {
-    return (file.indexOf('.') !== 0) && (file !== 'index.js')
-  })
-  .forEach(function (file) {
-    var model = sequelize.import(path.join(__dirname, file))
-    db[model.name] = model
-  })
-
-Object.keys(db).forEach(function (modelName) {
-  if ('associate' in db[modelName]) {
-    db[modelName].associate(db)
-  }
-})
-
-db.sequelize = sequelize
-db.Sequelize = Sequelize
-
-module.exports = db