/**
 * EditThisCookie / Chrome devtools JSON cookie export parser.
 *
 * Browser extension "EditThisCookie" and Chrome devtools both export
 * cookies in this canonical shape (Chrome/Edge/Chromium cookie store):
 *
 * ```json
 * [
 *   {
 *     "domain": ".minimax.io",
 *     "expirationDate": 1760000000.123,
 *     "hostOnly": false,
 *     "httpOnly": true,
 *     "name": "_token",
 *     "path": "/",
 *     "sameSite": "no_restriction",
 *     "secure": true,
 *     "session": false,
 *     "storeId": "0",
 *     "value": "...",
 *     "id": 1
 *   }
 * ]
 * ```
 *
 * Some tools may export a single object (not an array). Handle both.
 *
 * SEC-001: Cookie VALUES are returned as strings in-memory. Never logged.
 */

import type { CanonicalCookie } from "./types.js";

interface EditThisCookieRecord {
	domain?: unknown;
	expirationDate?: unknown;
	hostOnly?: unknown;
	httpOnly?: unknown;
	name?: unknown;
	path?: unknown;
	secure?: unknown;
	session?: unknown;
	value?: unknown;
}

/**
 * Parse EditThisCookie / Chrome devtools JSON export.
 *
 * Accepts:
 * - top-level array of records
 * - top-level single object
 *
 * Skips:
 * - non-object entries
 * - records without non-empty name+value
 *
 * Never throws; returns empty array on parse failure.
 */
export function parseEditThisCookieJson(text: string): CanonicalCookie[] {
	if (typeof text !== "string" || text.length === 0) return [];

	let data: unknown;
	try {
		data = JSON.parse(text);
	} catch {
		return [];
	}

	const records: EditThisCookieRecord[] = [];
	if (Array.isArray(data)) {
		for (const item of data) {
			if (item && typeof item === "object" && !Array.isArray(item)) {
				records.push(item as EditThisCookieRecord);
			}
		}
	} else if (data && typeof data === "object" && !Array.isArray(data)) {
		records.push(data as EditThisCookieRecord);
	}

	const cookies: CanonicalCookie[] = [];
	for (const r of records) {
		const name = asString(r.name);
		const value = asString(r.value);
		if (!name || !value) continue;

		const expires = asExpires(r.expirationDate, r.session);

		cookies.push({
			name,
			value,
			domain: asString(r.domain) ?? "",
			path: asString(r.path) ?? "/",
			expires,
			secure: asBool(r.secure) ?? false,
			httpOnly: asBool(r.httpOnly) ?? false,
		});
	}

	return cookies;
}

function asString(v: unknown): string | undefined {
	if (typeof v === "string" && v.length > 0) return v;
	return undefined;
}

function asBool(v: unknown): boolean | undefined {
	if (typeof v === "boolean") return v;
	if (v === 1 || v === "1" || v === "true" || v === "TRUE") return true;
	if (v === 0 || v === "0" || v === "false" || v === "FALSE") return false;
	return undefined;
}

function asExpires(v: unknown, session: unknown): number | undefined {
	if (session === true || session === "true") return undefined;
	if (typeof v === "number" && Number.isFinite(v)) {
		// EditThisCookie uses unix-seconds (with millisecond decimals sometimes).
		// If v > 1e12, it's milliseconds — convert.
		const seconds = v > 1e12 ? Math.floor(v / 1000) : Math.floor(v);
		return seconds > 0 ? seconds : undefined;
	}
	return undefined;
}