//! Helpers for error-path tests.
use crate::support::{default_test_credentials, test_auth_manager};
use niom_turn::alloc::AllocationManager;
use niom_turn::auth::{AuthManager, InMemoryStore};
use std::net::SocketAddr;
use std::sync::Arc;
use tokio::net::UdpSocket;

pub fn malformed_stun_frame() -> Vec<u8> {
    vec![0x00, 0x01, 0x02] // too short for STUN header
}

pub fn oversized_payload() -> Vec<u8> {
    vec![0u8; 4096]
}

pub fn build_auth_manager() -> AuthManager<InMemoryStore> {
    let (user, password) = default_test_credentials();
    test_auth_manager(user, password)
}

pub async fn spawn_udp_server(
    auth: AuthManager<InMemoryStore>,
    allocs: AllocationManager,
) -> SocketAddr {
    let server = UdpSocket::bind("127.0.0.1:0").await.expect("udp bind");
    let addr = server.local_addr().expect("udp addr");
    let arc = Arc::new(server);
    let reader = arc.clone();
    let auth_clone = auth.clone();
    let alloc_clone = allocs.clone();
    tokio::spawn(async move {
        let _ = niom_turn::server::udp_reader_loop(reader, auth_clone, alloc_clone).await;
    });
    addr
}