import * as check from "../../../../../generated/sync/check/maybe/generic/string";
import {AssertError} from "../../../../../sync/error/AssertError";

export function assertMaybeOneOf<T extends string> (name : string, mixed : any, arr : T[]) : (null|undefined|(T))|never {
    const error = check.checkMaybeOneOf(mixed, arr);
    if (error === undefined) {
        return mixed;
    } else {
        throw new AssertError(name, error, mixed, arr);
    }
}

export function assertMaybeOneOfHandler<T extends string> (arr : T[]) : (name : string, mixed : any) => (null|undefined|(T))|never {
    return (name : string, mixed : any) : (null|undefined|(T))|never => {
        return assertMaybeOneOf(name, mixed, arr);
    };
}