add modules to electron export, fix issues when downloading updates

electron/config.js

@@ -0,0 +1,53 @@
+const sqlite = require("better-sqlite3");
+const path = require("path");
+const fs = require("fs");
+
+const configFolder = path.join(
+  process.platform == "win32"
+    ? process.env["LOCALAPPDATA"]
+    : process.env["HOME"],
+  "EZPPLauncher",
+);
+if (!fs.existsSync(configFolder)) fs.mkdirSync(configFolder);
+
+const dbFile = path.join(configFolder, "ezpplauncher.db");
+
+const db = sqlite(dbFile);
+db.pragma("journal_mode = WAL");
+
+db.exec(
+  "CREATE TABLE IF NOT EXISTS config (configKey VARCHAR PRIMARY KEY, configValue VARCHAR);",
+);
+
+const set = (key, value) => {
+  db.prepare(
+    `INSERT OR REPLACE INTO config (configKey, configValue) VALUES (?, ?)`,
+  ).run(key, value);
+};
+
+const remove = (key) => {
+  db.prepare(`DELETE FROM config WHERE configKey = ?`).run(key);
+};
+
+const get = (
+  key,
+) => {
+  const result = db.prepare(
+    "SELECT configKey key, configValue val FROM config WHERE key = ?",
+  ).get(key);
+  return result ? result.val ?? undefined : undefined;
+};
+
+const all = () => {
+  const result = db.prepare(
+    `SELECT configKey key, configValue val FROM config WHERE 1`,
+  ).all();
+  return result ?? undefined;
+};
+
+module.exports = {
+  all,
+  get,
+  set,
+  remove,
+};