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.ts

@@ -0,0 +1,63 @@
+import {Sequelize} from 'sequelize-typescript';
+import { Author } from './author';
+import { Note } from './note';
+import { Revision } from './revision';
+import { Temp } from './temp';
+import { User } from './user';
+var fs = require('fs')
+var path = require('path');
+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: any = 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 if (process) {
+    if (data === null) {
+      return _default
+    } else {
+      return process(data)
+    }
+  } else {
+    if (data === null) {
+      return _default
+    } else {
+      return data
+    }
+  }
+}
+sequelize.processData = processData
+
+var db: any = {}
+
+sequelize.addModels([Author, Note, Revision, Temp, User]);
+
+db.sequelize = sequelize
+db.Sequelize = Sequelize
+
+module.exports = db