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/**
* `AppStoreKit` `Storage` implementation for the "web" client
*
* Note: The `AppStoreKit` `Storage` interface is declared as a global, which has the (presumably
* accidental) side-effect of implicitly being merged with the DOM library's own `Storage` interface
* (like `localStorage`), since interfaces declared in the same scope are merged together by TypeScript.
* There's no way to tell TypeScript that we only care about the `AppStoreKit` part of it, so
* satifying TypeScript here means that we need to implement both interfaces.
*/
export class WebStorage extends Map<string, string> implements Storage {
/* == "DOM" `Storage` Interface == */
get length() {
return this.size;
}
getItem(key: string): string | null {
return this.get(key) ?? null;
}
key(_index: number): string | null {
throw new Error('Method not implemented.');
}
removeItem(key: string): void {
this.delete(key);
}
setItem(key: string, value: string): void {
this.set(key, value);
}
/* == AppStoreKit `Storage` Interface == */
storeString(aString: string, key: string): void {
this.set(key, aString);
}
retrieveString(key: string): string {
// Fallback value designed based on how the ObjectGraph `StorageWrapper` handles that specific value
// https://github.pie.apple.com/app-store/ios-appstore-app/blob/1761d575b8dc3d7a63e7e36f3320cf9245be9f37/src/foundation/wrappers/storage.ts#L13
return this.get(key) ?? '<null>';
}
}
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