"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.createOAuthState = createOAuthState;
exports.consumeOAuthState = consumeOAuthState;
const crypto = __importStar(require("crypto"));
const stateStore = new Map();
const STATE_TTL_MS = 5 * 60 * 1000; // 5 minutes
/**
 * Create an OAuth state parameter + PKCE code verifier.
 * The state is stored in memory and expires after 5 minutes.
 */
function createOAuthState(provider, returnTo = '/', options) {
    const state = crypto.randomBytes(32).toString('hex');
    const codeVerifier = crypto.randomBytes(32).toString('base64url');
    stateStore.set(state, {
        codeVerifier,
        provider,
        returnTo,
        createdAt: Date.now(),
        connectOnly: options?.connectOnly,
        userId: options?.userId,
        label: options?.label,
    });
    return { state, codeVerifier };
}
/**
 * Consume an OAuth state parameter (one-time use).
 * Returns null if state is unknown, expired, or already consumed.
 */
function consumeOAuthState(state) {
    const entry = stateStore.get(state);
    if (!entry)
        return null;
    stateStore.delete(state);
    if (Date.now() - entry.createdAt > STATE_TTL_MS)
        return null;
    return entry;
}
// Periodic cleanup of expired entries (every 60s)
const cleanupInterval = setInterval(() => {
    const now = Date.now();
    for (const [key, entry] of stateStore) {
        if (now - entry.createdAt > STATE_TTL_MS) {
            stateStore.delete(key);
        }
    }
}, 60_000);
// Allow Node to exit without waiting for the interval
if (cleanupInterval.unref)
    cleanupInterval.unref();
