import crypto from "node:crypto";

import { isRecord, readNestedString } from "./attachments/shared.js";

import { resolveMSTeamsStorePath } from "./storage.js";

import { readJsonFile, withFileLock, writeJsonFile } from "./store-fs.js";

const MAX_POLLS = 1000;

const POLL_TTL_MS = 30 * 24 * 60 * 60 * 1000;

function isRecord(value: unknown): value is Record<string, unknown> {

return typeof value === "object" && value !== null && !Array.isArray(value);

}

function normalizeOptionalString(value: unknown): string | undefined {

if (typeof value !== "string") {

return undefined;

}

const trimmed = value.trim();

return trimmed ? trimmed : undefined;

}

function normalizeChoiceValue(value: unknown): string | null {

if (typeof value === "string") {

const trimmed = value.trim();

return current;

}

function readNestedString(value: unknown, keys: Array<string | number>): string | undefined {

return normalizeOptionalString(readNestedValue(value, keys));

}

export function extractMSTeamsPollVote(

activity: { value?: unknown } | undefined,

): MSTeamsPollVote | null {