// file: crates/ksp-onchain-transport-lib/unit_tests/ws_lifecycle.rs
// version: 4

fn non_zero(value: u64) -> std::num::NonZeroU64 {
    return std::num::NonZeroU64::new(value).expect("test ID must be non-zero");
}

#[test]
fn websocket_local_ids_preserve_ordering_and_numeric_identity() {
    let first_session = crate::WsSessionId::new(non_zero(1));
    let second_session = crate::WsSessionId::new(non_zero(2));
    let subscription = crate::WsSubscriptionId::new(non_zero(7));
    assert!(first_session < second_session);
    assert_eq!(subscription.get(), 7);
}

#[test]
fn websocket_state_models_expose_concurrent_lifecycle_states() {
    assert_eq!(crate::WsSessionState::Reconnecting { attempt: 3 }, crate::WsSessionState::Reconnecting { attempt: 3 });
    assert_eq!(crate::WsSubscriptionState::Resubscribing, crate::WsSubscriptionState::Resubscribing);
    assert_ne!(crate::WsSubscriptionState::Cancelling, crate::WsSubscriptionState::Closed);
}

#[test]
fn websocket_subscription_kinds_cover_all_nine_standard_families() {
    let kinds = [
        crate::WsSubscriptionKind::Account,
        crate::WsSubscriptionKind::Block,
        crate::WsSubscriptionKind::Logs,
        crate::WsSubscriptionKind::Program,
        crate::WsSubscriptionKind::Root,
        crate::WsSubscriptionKind::Signature,
        crate::WsSubscriptionKind::Slot,
        crate::WsSubscriptionKind::SlotsUpdates,
        crate::WsSubscriptionKind::Vote,
    ];
    assert_eq!(kinds.len(), 9);
    assert_eq!(kinds[7].as_str(), "slots_updates");
}

#[test]
fn websocket_snapshots_expose_safe_metadata_without_remote_ids_or_urls() {
    let subscription = crate::WsSubscriptionSnapshot::new(
        crate::WsSubscriptionId::new(non_zero(9)),
        crate::WsSubscriptionKind::Slot,
        crate::WsSubscriptionState::Active,
        true,
        std::option::Option::None,
    );
    let snapshot = crate::WsSessionSnapshot::new(
        crate::WsSessionId::new(non_zero(3)),
        "devnet_public",
        crate::WsProviderName::new("solana-public"),
        crate::WsClusterName::new("devnet"),
        crate::WsProtocolKind::SolanaStandard,
        crate::WsSessionState::Active,
        2,
        1,
        0,
        std::vec![subscription],
    );
    assert_eq!(snapshot.id().get(), 3);
    assert_eq!(snapshot.endpoint_name(), "devnet_public");
    assert_eq!(snapshot.pending_request_count(), 2);
    assert_eq!(snapshot.continuity_gap_count(), 1);
    assert_eq!(snapshot.subscription_count(), 1);
    assert!(snapshot.subscriptions()[0].remote_bound());
    assert_eq!(snapshot.subscriptions()[0].terminal_error_code(), std::option::Option::None);
    assert_eq!(snapshot.overflow_count(), 0);
    let rendered = format!("{snapshot:?}");
    assert!(!rendered.contains("wss://"));
    assert!(!rendered.contains("remote_subscription_id"));
}

#[test]
fn websocket_subscription_snapshot_preserves_only_safe_terminal_error_code() {
    let snapshot = crate::WsSubscriptionSnapshot::new(
        crate::WsSubscriptionId::new(non_zero(10)),
        crate::WsSubscriptionKind::Logs,
        crate::WsSubscriptionState::Failed,
        false,
        std::option::Option::Some(crate::ERROR_CODE_WS_BACKPRESSURE_OVERFLOW),
    );
    assert_eq!(snapshot.state(), crate::WsSubscriptionState::Failed);
    assert_eq!(snapshot.terminal_error_code(), std::option::Option::Some(crate::ERROR_CODE_WS_BACKPRESSURE_OVERFLOW));
    assert!(!format!("{snapshot:?}").contains("remote_subscription_id"));
}

#[test]
fn websocket_subscription_kinds_map_exact_standard_method_triplets() {
    let cases = [
        (crate::WsSubscriptionKind::Account, "accountSubscribe", "accountUnsubscribe", "accountNotification"),
        (crate::WsSubscriptionKind::Block, "blockSubscribe", "blockUnsubscribe", "blockNotification"),
        (crate::WsSubscriptionKind::Logs, "logsSubscribe", "logsUnsubscribe", "logsNotification"),
        (crate::WsSubscriptionKind::Program, "programSubscribe", "programUnsubscribe", "programNotification"),
        (crate::WsSubscriptionKind::Root, "rootSubscribe", "rootUnsubscribe", "rootNotification"),
        (crate::WsSubscriptionKind::Signature, "signatureSubscribe", "signatureUnsubscribe", "signatureNotification"),
        (crate::WsSubscriptionKind::Slot, "slotSubscribe", "slotUnsubscribe", "slotNotification"),
        (crate::WsSubscriptionKind::SlotsUpdates, "slotsUpdatesSubscribe", "slotsUpdatesUnsubscribe", "slotsUpdatesNotification"),
        (crate::WsSubscriptionKind::Vote, "voteSubscribe", "voteUnsubscribe", "voteNotification"),
    ];
    for (kind, subscribe, unsubscribe, notification) in cases {
        assert_eq!(kind.subscribe_method(), subscribe);
        assert_eq!(kind.unsubscribe_method(), unsubscribe);
        assert_eq!(kind.notification_method(), notification);
    }
}

#[test]
fn websocket_unstable_subscription_partition_is_exact() {
    let cases = [
        (crate::WsSubscriptionKind::Account, false),
        (crate::WsSubscriptionKind::Block, true),
        (crate::WsSubscriptionKind::Logs, false),
        (crate::WsSubscriptionKind::Program, false),
        (crate::WsSubscriptionKind::Root, false),
        (crate::WsSubscriptionKind::Signature, false),
        (crate::WsSubscriptionKind::Slot, false),
        (crate::WsSubscriptionKind::SlotsUpdates, true),
        (crate::WsSubscriptionKind::Vote, true),
    ];
    for (kind, unstable) in cases {
        assert_eq!(kind.is_unstable(), unstable);
    }
}