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import MemoryStorage from "../infrastructures/MemoryStorage";
import Settings from "../../shared/settings/Settings";
import Properties from "../../shared/settings/Properties";
const CACHED_SETTING_KEY = "setting";
export default interface CachedSettingRepository {
get(): Promise<Settings>;
update(value: Settings): Promise<void>;
setProperty(name: string, value: string | number | boolean): Promise<void>;
}
export class CachedSettingRepositoryImpl implements 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): Promise<void> {
this.cache.set(CACHED_SETTING_KEY, value.toJSON());
return Promise.resolve();
}
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;
}
await this.update(current);
}
}
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