// RRDP test group: sync.

#[test]
fn snapshot_entity_reference_is_not_silently_dropped_from_base64() {
    for content in ["YQ==&", "YQ==", "YQ==&unknown;"] {
        let temp = tempfile::tempdir().unwrap();
        let store = RocksStore::open(temp.path()).unwrap();
        let sid = Uuid::parse_str("550e8400-e29b-41d4-a716-446655440000").unwrap();
        let xml = format!(
            "<snapshot xmlns=\"{RRDP_XMLNS}\" version=\"1\" session_id=\"{sid}\" serial=\"1\"><publish uri=\"rsync://example.net/repo/a.roa\">{content}</publish></snapshot>"
        );
        let error = super::snapshot_apply::apply_snapshot(
            &store,
            "https://example.net/notification.xml",
            None,
            xml.as_bytes(),
            sid,
            1,
        )
        .expect_err("an entity must not disappear and turn invalid base64 into valid data");
        assert!(matches!(
            error,
            RrdpSyncError::Rrdp(RrdpError::PublishBase64(_))
        ));
    }
}

#[test]
fn sync_from_notification_snapshot_rejects_cross_source_owner_conflict() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid_a = "550e8400-e29b-41d4-a716-446655440000";
    let sid_b = "550e8400-e29b-41d4-a716-446655440001";
    let uri = "rsync://example.net/repo/a.mft";

    let notif_a_uri = "https://example.net/a/notification.xml";
    let snapshot_a_uri = "https://example.net/a/snapshot.xml";
    let snapshot_a = snapshot_xml(sid_a, 1, &[(uri, b"a1")]);
    let snapshot_a_hash = hex::encode(sha2::Sha256::digest(&snapshot_a));
    let notif_a = notification_xml(sid_a, 1, snapshot_a_uri, &snapshot_a_hash);
    let fetcher_a = MapFetcher {
        map: HashMap::from([(snapshot_a_uri.to_string(), snapshot_a)]),
    };
    sync_from_notification_snapshot(&store, notif_a_uri, &notif_a, &fetcher_a)
        .expect("seed source a");

    let notif_b_uri = "https://example.net/b/notification.xml";
    let snapshot_b_uri = "https://example.net/b/snapshot.xml";
    let snapshot_b = snapshot_xml(sid_b, 1, &[(uri, b"b1")]);
    let snapshot_b_hash = hex::encode(sha2::Sha256::digest(&snapshot_b));
    let notif_b = notification_xml(sid_b, 1, snapshot_b_uri, &snapshot_b_hash);
    let fetcher_b = MapFetcher {
        map: HashMap::from([(snapshot_b_uri.to_string(), snapshot_b)]),
    };

    let err = sync_from_notification_snapshot(&store, notif_b_uri, &notif_b, &fetcher_b)
        .expect_err("cross-source overwrite must fail");
    assert!(matches!(err, RrdpSyncError::Storage(_)));
    assert!(err.to_string().contains("owner conflict"), "{err}");
}

struct PanicOnRrdpFetch;

impl Fetcher for PanicOnRrdpFetch {
    fn fetch(&self, uri: &str) -> Result<Vec<u8>, String> {
        panic!("cross-origin notification must be rejected before fetch: {uri}");
    }
}

#[test]
fn cross_origin_snapshot_reference_is_rejected_before_fetch_or_state_write() {
    let temp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(temp.path()).expect("open rocksdb");
    let notification_uri = "https://origin.example.test/notification.xml";
    let notification = notification_xml(
        "550e8400-e29b-41d4-a716-446655440000",
        1,
        "https://foreign.example.test/snapshot.xml",
        &"00".repeat(32),
    );

    let err =
        sync_from_notification_snapshot(&store, notification_uri, &notification, &PanicOnRrdpFetch)
            .expect_err("cross-origin snapshot must be rejected");
    assert!(matches!(
        err,
        RrdpSyncError::Rrdp(RrdpError::CrossOriginReference {
            resource: RrdpResourceKind::Snapshot,
            ..
        })
    ));
    assert!(
        load_rrdp_local_state(&store, notification_uri)
            .expect("read state")
            .is_none(),
        "rejection must precede RRDP state writes"
    );
}

#[test]
fn cross_origin_delta_reference_is_rejected_even_when_delta_would_not_be_used() {
    let temp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(temp.path()).expect("open rocksdb");
    let notification_uri = "https://origin.example.test/notification.xml";
    let notification = notification_xml_with_deltas(
        "550e8400-e29b-41d4-a716-446655440000",
        1,
        "https://origin.example.test/snapshot.xml",
        &"00".repeat(32),
        &[(
            "delta-1",
            1,
            "https://foreign.example.test/delta-1.xml",
            &"11".repeat(32),
        )],
    );

    let err = sync_from_notification(&store, notification_uri, &notification, &PanicOnRrdpFetch)
        .expect_err("cross-origin delta must be rejected before state/fetch");
    assert!(matches!(
        err,
        RrdpSyncError::Rrdp(RrdpError::CrossOriginReference {
            resource: RrdpResourceKind::Delta,
            ..
        })
    ));
    assert!(
        load_rrdp_local_state(&store, notification_uri)
            .expect("read state")
            .is_none(),
        "all delta references are checked before state reads or writes"
    );
}

#[test]
fn rrdp_origin_treats_https_default_port_as_equivalent() {
    let notification = parse_notification(&notification_xml(
        "550e8400-e29b-41d4-a716-446655440000",
        1,
        "https://origin.example.test:443/snapshot.xml",
        &"00".repeat(32),
    ))
    .expect("notification");
    validate_notification_references(
        "https://origin.example.test/notification.xml",
        &notification,
    )
    .expect("explicit HTTPS default port must remain same-origin");
}

#[test]
fn sync_from_notification_snapshot_applies_snapshot_and_stores_state() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid = "550e8400-e29b-41d4-a716-446655440000";
    let serial = 9u64;
    let notif_uri = "https://example.net/notification.xml";
    let snapshot_uri = "https://example.net/snapshot.xml";

    let snapshot = snapshot_xml(
        sid,
        serial,
        &[
            ("rsync://example.net/repo/a.mft", b"mft-bytes"),
            ("rsync://example.net/repo/b.roa", b"roa-bytes"),
        ],
    );
    let snapshot_hash = hex::encode(sha2::Sha256::digest(&snapshot));
    let notif = notification_xml(sid, serial, snapshot_uri, &snapshot_hash);

    let fetcher = MapFetcher {
        map: HashMap::from([(snapshot_uri.to_string(), snapshot.clone())]),
    };

    let published =
        sync_from_notification_snapshot(&store, notif_uri, &notif, &fetcher).expect("sync");
    assert_eq!(published, 2);

    assert_current_object(&store, "rsync://example.net/repo/a.mft", b"mft-bytes");
    assert_current_object(&store, "rsync://example.net/repo/b.roa", b"roa-bytes");

    let state = load_rrdp_local_state(&store, notif_uri)
        .expect("get rrdp state")
        .expect("state present");
    assert_eq!(state.session_id, sid);
    assert_eq!(state.serial, serial);

    let source = store
        .get_rrdp_source_record(notif_uri)
        .expect("get rrdp source")
        .expect("rrdp source exists");
    assert_eq!(source.last_session_id.as_deref(), Some(sid));
    assert_eq!(source.last_serial, Some(serial));
    assert_eq!(
        source.sync_state,
        crate::repository::storage::RrdpSourceSyncState::SnapshotOnly
    );

    let view = store
        .get_repository_view_entry("rsync://example.net/repo/a.mft")
        .expect("get repository view")
        .expect("repository view exists");
    assert_eq!(
        view.state,
        crate::repository::storage::RepositoryViewState::Present
    );
    assert_eq!(view.repository_source.as_deref(), Some(notif_uri));

    let current_bytes = store
        .load_current_object_bytes_by_uri("rsync://example.net/repo/a.mft")
        .expect("load current bytes")
        .expect("current object bytes exist");
    assert_eq!(current_bytes, b"mft-bytes".to_vec());
    assert!(
        store
            .get_raw_by_hash_entry(hex::encode(sha2::Sha256::digest(b"mft-bytes")).as_str())
            .expect("get raw_by_hash")
            .is_none()
    );

    let member = store
        .get_rrdp_source_member_record(notif_uri, "rsync://example.net/repo/a.mft")
        .expect("get member")
        .expect("member exists");
    assert!(member.present);
    let owner = store
        .get_rrdp_uri_owner_record("rsync://example.net/repo/a.mft")
        .expect("get owner")
        .expect("owner exists");
    assert_eq!(owner.notify_uri, notif_uri);
    assert_eq!(
        owner.owner_state,
        crate::repository::storage::RrdpUriOwnerState::Active
    );
}

#[test]
fn sync_from_notification_snapshot_deletes_objects_not_in_new_snapshot() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid = "550e8400-e29b-41d4-a716-446655440000";
    let notif_uri = "https://example.net/notification.xml";

    // serial 1: publish a + b
    let snapshot_uri_1 = "https://example.net/snapshot-1.xml";
    let snapshot_1 = snapshot_xml(
        sid,
        1,
        &[
            ("rsync://example.net/repo/a.mft", b"a1"),
            ("rsync://example.net/repo/b.roa", b"b1"),
        ],
    );
    let snapshot_hash_1 = hex::encode(sha2::Sha256::digest(&snapshot_1));
    let notif_1 = notification_xml(sid, 1, snapshot_uri_1, &snapshot_hash_1);

    let fetcher_1 = MapFetcher {
        map: HashMap::from([(snapshot_uri_1.to_string(), snapshot_1)]),
    };
    sync_from_notification_snapshot(&store, notif_uri, &notif_1, &fetcher_1).expect("sync 1");

    // serial 2: publish b (new bytes) + c, and drop a
    let snapshot_uri_2 = "https://example.net/snapshot-2.xml";
    let snapshot_2 = snapshot_xml(
        sid,
        2,
        &[
            ("rsync://example.net/repo/b.roa", b"b2"),
            ("rsync://example.net/repo/c.crl", b"c2"),
        ],
    );
    let snapshot_hash_2 = hex::encode(sha2::Sha256::digest(&snapshot_2));
    let notif_2 = notification_xml(sid, 2, snapshot_uri_2, &snapshot_hash_2);

    let fetcher_2 = MapFetcher {
        map: HashMap::from([(snapshot_uri_2.to_string(), snapshot_2)]),
    };
    sync_from_notification_snapshot(&store, notif_uri, &notif_2, &fetcher_2).expect("sync 2");

    assert!(
        store
            .load_current_object_bytes_by_uri("rsync://example.net/repo/a.mft")
            .expect("get current a")
            .is_none(),
        "a should be deleted by full-state snapshot apply"
    );

    assert_current_object(&store, "rsync://example.net/repo/b.roa", b"b2");
    assert_current_object(&store, "rsync://example.net/repo/c.crl", b"c2");
}

#[test]
fn sync_from_notification_uses_deltas_when_available_for_local_state() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid = "550e8400-e29b-41d4-a716-446655440000";
    let notif_uri = "https://example.net/notification.xml";

    // Seed state with snapshot serial=1 containing a+b.
    let snapshot_uri_1 = "https://example.net/snapshot-1.xml";
    let snapshot_1 = snapshot_xml(
        sid,
        1,
        &[
            ("rsync://example.net/repo/a.mft", b"a1"),
            ("rsync://example.net/repo/b.roa", b"b1"),
        ],
    );
    let snapshot_hash_1 = hex::encode(sha2::Sha256::digest(&snapshot_1));
    let notif_1 = notification_xml(sid, 1, snapshot_uri_1, &snapshot_hash_1);
    let fetcher_1 = MapFetcher {
        map: HashMap::from([(snapshot_uri_1.to_string(), snapshot_1)]),
    };
    sync_from_notification_snapshot(&store, notif_uri, &notif_1, &fetcher_1).expect("seed");

    // Notification serial=3 with deltas 2 and 3. Snapshot URI is intentionally not fetchable
    // to assert we really use deltas.
    let snapshot_uri_3 = "https://example.net/snapshot-3.xml";
    let snapshot_hash_3 = "00".repeat(32);

    let publish_c_b64 = base64::engine::general_purpose::STANDARD.encode(b"c2");
    let delta_2 = delta_xml(
        sid,
        2,
        &[&format!(
            r#"<publish uri="rsync://example.net/repo/c.crl">{publish_c_b64}</publish>"#
        )],
    );
    let delta_2_hash_hex = hex::encode(sha2::Sha256::digest(&delta_2));

    let c_hash_hex = hex::encode(sha2::Sha256::digest(b"c2".as_slice()));
    let delta_3 = delta_xml(
        sid,
        3,
        &[&format!(
            r#"<withdraw uri="rsync://example.net/repo/c.crl" hash="{c_hash_hex}"/>"#
        )],
    );
    let delta_3_hash_hex = hex::encode(sha2::Sha256::digest(&delta_3));

    let notif_3 = notification_xml_with_deltas(
        sid,
        3,
        snapshot_uri_3,
        &snapshot_hash_3,
        &[
            (
                "d3",
                3,
                "https://example.net/delta-3.xml",
                &delta_3_hash_hex,
            ),
            (
                "d2",
                2,
                "https://example.net/delta-2.xml",
                &delta_2_hash_hex,
            ),
        ],
    );

    let fetcher = MapFetcher {
        map: HashMap::from([
            ("https://example.net/delta-2.xml".to_string(), delta_2),
            ("https://example.net/delta-3.xml".to_string(), delta_3),
        ]),
    };

    let applied = sync_from_notification(&store, notif_uri, &notif_3, &fetcher).expect("sync");
    assert!(applied > 0);

    // Delta 2 publishes c then delta 3 withdraws it => final state should not contain c.
    assert!(
        store
            .load_current_object_bytes_by_uri("rsync://example.net/repo/c.crl")
            .expect("get current")
            .is_none()
    );

    let state = load_rrdp_local_state(&store, notif_uri)
        .expect("get rrdp state")
        .expect("state present");
    assert_eq!(state.session_id, Uuid::parse_str(sid).unwrap().to_string());
    assert_eq!(state.serial, 3);
}

#[test]
fn sync_from_notification_same_serial_hydrates_current_repo_index() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid = "550e8400-e29b-41d4-a716-446655440000";
    let notif_uri = "https://example.net/notification.xml";
    let snapshot_uri = "https://example.net/snapshot.xml";
    let uri_a = "rsync://example.net/repo/a.mft";
    let uri_b = "rsync://example.net/repo/b.roa";

    let snapshot = snapshot_xml(sid, 1, &[(uri_a, b"a1"), (uri_b, b"b1")]);
    let snapshot_hash = hex::encode(sha2::Sha256::digest(&snapshot));
    let notif = notification_xml(sid, 1, snapshot_uri, &snapshot_hash);
    let fetcher_1 = MapFetcher {
        map: HashMap::from([(snapshot_uri.to_string(), snapshot)]),
    };
    sync_from_notification_snapshot(&store, notif_uri, &notif, &fetcher_1).expect("seed");

    let index = CurrentRepoIndex::shared();
    let no_fetcher = MapFetcher {
        map: HashMap::new(),
    };
    let applied = sync_from_notification_with_timing_and_download_log(
        &store,
        notif_uri,
        Some(&index),
        &notif,
        &no_fetcher,
        None,
        None,
    )
    .expect("same serial no-op");
    assert_eq!(applied, 0);

    let index = index.read().expect("read-lock index");
    assert_eq!(index.active_uri_count(), 2);
    assert!(index.get_by_uri(uri_a).is_some());
    assert!(index.get_by_uri(uri_b).is_some());
}

#[test]
fn sync_from_notification_delta_hydrates_unchanged_current_repo_entries() {
    let tmp = tempfile::tempdir().expect("tempdir");
    let store = RocksStore::open(tmp.path()).expect("open rocksdb");

    let sid = "550e8400-e29b-41d4-a716-446655440000";
    let notif_uri = "https://example.net/notification.xml";
    let snapshot_uri_1 = "https://example.net/snapshot-1.xml";
    let uri_a = "rsync://example.net/repo/a.mft";
    let uri_b = "rsync://example.net/repo/b.roa";
    let uri_c = "rsync://example.net/repo/c.crl";

    let snapshot_1 = snapshot_xml(sid, 1, &[(uri_a, b"a1"), (uri_b, b"b1")]);
    let snapshot_hash_1 = hex::encode(sha2::Sha256::digest(&snapshot_1));
    let notif_1 = notification_xml(sid, 1, snapshot_uri_1, &snapshot_hash_1);
    let fetcher_1 = MapFetcher {
        map: HashMap::from([(snapshot_uri_1.to_string(), snapshot_1)]),
    };
    sync_from_notification_snapshot(&store, notif_uri, &notif_1, &fetcher_1).expect("seed");

    let publish_c_b64 = base64::engine::general_purpose::STANDARD.encode(b"c2");
    let delta_2 = delta_xml(
        sid,
        2,
        &[&format!(
            r#"<publish uri="{uri_c}">{publish_c_b64}</publish>"#
        )],
    );
    let delta_2_hash_hex = hex::encode(sha2::Sha256::digest(&delta_2));
    let notif_2 = notification_xml_with_deltas(
        sid,
        2,
        "https://example.net/snapshot-2.xml",
        &"00".repeat(32),
        &[(
            "d2",
            2,
            "https://example.net/delta-2.xml",
            &delta_2_hash_hex,
        )],
    );
    let fetcher_2 = MapFetcher {
        map: HashMap::from([("https://example.net/delta-2.xml".to_string(), delta_2)]),
    };

    let index = CurrentRepoIndex::shared();
    let applied = sync_from_notification_with_timing_and_download_log(
        &store,
        notif_uri,
        Some(&index),
        &notif_2,
        &fetcher_2,
        None,
        None,
    )
    .expect("delta sync");
    assert_eq!(applied, 1);

    let index = index.read().expect("read-lock index");
    assert_eq!(index.active_uri_count(), 3);
    assert!(
        index.get_by_uri(uri_a).is_some(),
        "unchanged object from the previous serial must be visible"
    );
    assert!(
        index.get_by_uri(uri_b).is_some(),
        "unchanged object from the previous serial must be visible"
    );
    assert!(index.get_by_uri(uri_c).is_some(), "delta publish visible");
}