RocketChat/Rocket.Chat

const isPromise = <T>(value: unknown): value is Promise<T> => !!value && value instanceof Promise;

export function wrapExceptions<T = any>(
    getter: () => T,
): {
    catch: (errorWrapper: (error: any) => T) => T;
    suppress: (errorWrapper?: (error: any) => void) => T | undefined;
};
export function wrapExceptions<T = any>(
    getter: () => Promise<T>,
): {
    catch: (errorWrapper: (error: any) => T | Awaited<T>) => Promise<T>;
    suppress: (errorWrapper?: (error: any) => void) => Promise<T | undefined>;
};
export function wrapExceptions<T>(getter: () => T) {
    const doCatch = (errorWrapper: (error: any) => T | Awaited<T>): T => {
        try {
            const value = getter();
            if (isPromise(value)) {
                return value.catch(errorWrapper) as T;
            }

            return value;
        } catch (error) {
            return errorWrapper(error);
        }
    };

    const doSuppress = (errorWrapper?: (error: any) => void) => {
        try {
            const value = getter();
            if (isPromise(value)) {
                return value.catch((error) => errorWrapper?.(error));
            }

            return value;
        } catch (error) {
            errorWrapper?.(error);
        }
    };

    return {
        catch: doCatch,
        suppress: doSuppress,
    };
}