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import MemoryStorage from "../infrastructures/MemoryStorage";
const REPOSITORY_KEY = "readyFrameRepository";
type State = { [tabId: number]: number[] };
export default interface ReadyFrameRepository {
clearFrameIds(tabId: number): Promise<void>;
addFrameId(tabId: number, frameId: number): Promise<void>;
removeFrameId(tabId: number, frameId: number): Promise<void>;
getFrameIds(tabId: number): Promise<number[] | undefined>;
}
export class ReadyFrameRepositoryImpl implements ReadyFrameRepository {
private cache: MemoryStorage;
constructor() {
this.cache = new MemoryStorage();
}
clearFrameIds(tabId: number): Promise<void> {
let state: State | undefined = this.cache.get(REPOSITORY_KEY);
if (typeof state === "undefined") {
state = {};
}
delete state[tabId];
this.cache.set(REPOSITORY_KEY, state);
return Promise.resolve();
}
addFrameId(tabId: number, frameId: number): Promise<void> {
let state: State | undefined = this.cache.get(REPOSITORY_KEY);
if (typeof state === "undefined") {
state = {};
}
state[tabId] = (state[tabId] || []).concat(frameId).sort();
this.cache.set(REPOSITORY_KEY, state);
return Promise.resolve();
}
removeFrameId(tabId: number, frameId: number): Promise<void> {
const state: State | undefined = this.cache.get(REPOSITORY_KEY);
if (typeof state === "undefined") {
return Promise.resolve();
}
const ids = state[tabId];
if (typeof ids === "undefined") {
return Promise.resolve();
}
state[tabId] = ids.filter((id) => id != frameId);
this.cache.set(REPOSITORY_KEY, state);
return Promise.resolve();
}
getFrameIds(tabId: number): Promise<number[] | undefined> {
const state: State | undefined = this.cache.get(REPOSITORY_KEY);
if (typeof state === "undefined") {
return Promise.resolve(undefined);
}
return Promise.resolve(state[tabId]);
}
}
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