1 files changed, 54 insertions, 0 deletions
diff --git a/src/background/repositories/CachedSettingRepository.ts b/src/background/repositories/CachedSettingRepository.ts
new file mode 100644
index 0000000..b73d94a
--- /dev/null
+++ b/src/background/repositories/CachedSettingRepository.ts
@@ -0,0 +1,54 @@
+import { injectable } from 'tsyringe';
+import MemoryStorage from '../infrastructures/MemoryStorage';
+import Settings from '../../shared/settings/Settings';
+import Properties from '../../shared/settings/Properties';
+
+const CACHED_SETTING_KEY = 'setting';
+
+@injectable()
+export default class CachedSettingRepository {
+  private cache: MemoryStorage;
+
+  constructor() {
+    this.cache = new MemoryStorage();
+  }
+
+  get(): Promise<Settings> {
+    const data = this.cache.get(CACHED_SETTING_KEY);
+    return Promise.resolve(Settings.fromJSON(data));
+  }
+
+  update(value: Settings): void {
+    return this.cache.set(CACHED_SETTING_KEY, value.toJSON());
+  }
+
+  async setProperty(
+    name: string, value: string | number | boolean,
+  ): Promise<void> {
+    const def = Properties.def(name);
+    if (!def) {
+      throw new Error('unknown property: ' + name);
+    }
+    if (typeof value !== def.type) {
+      throw new TypeError(`property type of ${name} mismatch: ${typeof value}`);
+    }
+    let newValue = value;
+    if (typeof value === 'string' && value === '') {
+      newValue = def.defaultValue;
+    }
+
+    const current = await this.get();
+    switch (name) {
+    case 'hintchars':
+      current.properties.hintchars = newValue as string;
+      break;
+    case 'smoothscroll':
+      current.properties.smoothscroll = newValue as boolean;
+      break;
+    case 'complete':
+      current.properties.complete = newValue as string;
+      break;
+    }
+    return this.update(current);
+  }
+}