QOL: Move source code under the src directory. (#1318)

src/config/index.ts

@@ -0,0 +1,53 @@
+import Store from 'electron-store';
+
+import defaultConfig from './defaults';
+import plugins from './plugins';
+import store from './store';
+
+import { restart } from '../providers/app-controls';
+
+
+const set = (key: string, value: unknown) => {
+  store.set(key, value);
+};
+
+function setMenuOption(key: string, value: unknown) {
+  set(key, value);
+  if (store.get('options.restartOnConfigChanges')) {
+    restart();
+  }
+}
+
+// MAGIC OF TYPESCRIPT
+
+type Prev = [never, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+  11, 12, 13, 14, 15, 16, 17, 18, 19, 20, ...0[]]
+type Join<K, P> = K extends string | number ?
+  P extends string | number ?
+    `${K}${'' extends P ? '' : '.'}${P}`
+    : never : never;
+type Paths<T, D extends number = 10> = [D] extends [never] ? never : T extends object ?
+  { [K in keyof T]-?: K extends string | number ?
+    `${K}` | Join<K, Paths<T[K], Prev[D]>>
+    : never
+  }[keyof T] : ''
+
+type SplitKey<K> = K extends `${infer A}.${infer B}` ? [A, B] : [K, string];
+type PathValue<T, K extends string> =
+  SplitKey<K> extends [infer A extends keyof T, infer B extends string]
+    ? PathValue<T[A], B>
+    : T;
+const get = <Key extends Paths<typeof defaultConfig>>(key: Key) => store.get(key) as PathValue<typeof defaultConfig, typeof key>;
+
+export default {
+  defaultConfig,
+  get,
+  set,
+  setMenuOption,
+  edit: () => store.openInEditor(),
+  watch(cb: Parameters<Store['onDidChange']>[1]) {
+    store.onDidChange('options', cb);
+    store.onDidChange('plugins', cb);
+  },
+  plugins,
+};