import { environment } from "#environment/config";
import { jwt } from "#environment/jwt";

import type { CookieOptions } from "#types/config";
import type { ExtendedRequest } from "#types/server";

class CookieService {
	extractToken(request: Request | ExtendedRequest): string | null {
		return request.headers.get("Cookie")?.match(/session=([^;]+)/)?.[1] || null;
	}

	generateCookie(
		token: string,
		maxAge = jwt.expiration,
		options?: CookieOptions,
	): string {
		const {
			secure = !environment.development,
			httpOnly = true,
			sameSite = environment.development ? "Lax" : "None",
			path = "/",
			domain,
		} = options || {};

		let cookie = `session=${encodeURIComponent(token)}; Path=${path}; Max-Age=${maxAge}`;

		if (httpOnly) cookie += "; HttpOnly";
		if (secure) cookie += "; Secure";
		if (sameSite) cookie += `; SameSite=${sameSite}`;
		if (domain) cookie += `; Domain=${domain}`;

		return cookie;
	}

	clearCookie(options?: Omit<CookieOptions, "httpOnly" | "secure">): string {
		const {
			sameSite = environment.development ? "Lax" : "None",
			path = "/",
			domain,
		} = options || {};

		let cookie = `session=; Path=${path}; Max-Age=0; HttpOnly`;

		if (!environment.development) cookie += "; Secure";
		if (sameSite) cookie += `; SameSite=${sameSite}`;
		if (domain) cookie += `; Domain=${domain}`;

		return cookie;
	}
}

const cookieService = new CookieService();
export { CookieService, cookieService };