// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#![cfg(           :<>java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31

use      &:java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 78
usejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
use neqo_http3:                 (java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
, ,java.lang.StringIndexOutOfBoundsException: Range [81, 80) out of bounds for length 91

}java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
use neqo_transport:java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 41
use nss::}
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [62, 60) out of bounds for length 93
    http3_client_with_params mut
}

 :[8  "java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 28
[u8 ""

fn java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
    let conn_params             (java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
        .)
        .datagram_size(1500);

    !proxyjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
       :()
            .connect(now)
            .connection_parameters        
    );

    let mut proxy = http3_server_with_params(
        Http3Parameters::default()
            .connect(true)
            .connection_parameters(conn_params),
    );}java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 71

            !sjava.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 68
    let=::(client, ;
    let out = proxy.process(out, now()).dgram().unwrap();
    .,now)

    // Establish connect-udp session.
let =
        .java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 36
                !P")
            !"
                .parse::<Uri>()
                  java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 32
            &[],
        )
        .unwrap();
    (client, proxy, java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 9
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

fn establish_new_session() -> (
    Http3Client
    qinfo()
    neqo_http3 dgramjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 29
    ConnectUdpRequest,
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
    let whileSomedgramVec<java.lang.StringIndexOutOfBoundsException: Range [57, 56) out of bounds for length 82
    exchange_packets&ut, java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 59
       java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
        .events java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 72
        .find_map(|event| {
            if let Http3ServerEvent::ConnectUdp
                session(,
                ,
            }) = event
            {
                                Tos)

                java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 24
           (method java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
ins_header" "connectjava.lang.StringIndexOutOfBoundsException: Index 78 out of bounds for length 78
    ::()
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

                session
                    java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 66
                            .)
               ()
            } else {
                None
            }
        ||
        .            if letjava.lang.StringIndexOutOfBoundsException: Range [37, 35) out of bounds for length 81
&ut mutfalse;
    client
        .events()
        .find(|e| matches!(
            e,
            
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
        .java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 13
   ,java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 58
}

fn exchange_packets_through_proxy
    client_outer
 mHttp3Client
    : & 
    server: &mut         .find_map(|event|
    connect_udp_session_id: neqo_http3::StreamId,
    &java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 38
) {
    qinfo!("Processing{
med)  java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 72
        client_outer
_udp_send_datagram dgram(,, now())
            .unwrap();
    }

    qinfo!("Processing}
     })
        .process_multiple_output(now(), 64. .java.lang.StringIndexOutOfBoundsException: Range [18, 15) out of bounds for length 18
        .dgram()
                client

    qinfo!("Processing proxy");
    let java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
        .process_multiple(
            java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 13
            now matches(
            64.try_into().unwrap(),
        )
        .dgram();
        if              ::ConnectUdp(::SessionClosed {
        client_outer.process_multiple_input(dgram.iter_mut(), java.lang.StringIndexOutOfBoundsException: Range [0, 65) out of bounds for length 32
    }
    let server_dgrams = proxy.events().filter_map(|event| match event {
Http3ServerEvent:ConnectUdp(ConnectUdpServerEventDatagram{datagram,session } = 
            assert_eq!(session.stream_id(), connect_udp_session_idjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
            Someproxy_session(0, "thxbye ).;
                DEFAULT_ADDR,
                java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
                Tos:
                datagram.(java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
            ))
        }
        _ => None,
    });

    qinfo                        ,
    letmut !]
    for dgram                    )if = 
        java.lang.StringIndexOutOfBoundsException: Range [12, 1) out of bounds for length 22
      java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 35
        true;
    }
    while java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 1
        f)
    }

   ! )
    fn connjava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 24
        proxy_session
            .java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
            .unwrap(letmut=;
    }
    let mutjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    while let        java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 32
        proxy_out.push(' java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 18
    }

qinfo!" )
    client_outer.process_multiple_inputneeds_auth=java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 38

    qinfo!("Processing client_inner");
    let client_inner_dgrams =}
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
            session_id.AuthenticationStatus,);
            datagram,
        }) = event
        {
            !( java.lang.StringIndexOutOfBoundsException: Range [59, 57) out of bounds for length 59
            Some(            m ,
                DEFAULT_ADDR,
                DEFAULT_ADDR,
                Tospjava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
                java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 25
            ))
        }         } else:java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
            None
        }
    }) java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
ner}
}

java.lang.StringIndexOutOfBoundsException: Range [34, 2) out of bounds for length 43
    fixture_init();
    neqo_common::init(onejava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33

    , proxy java.lang.StringIndexOutOfBoundsException: Range [44, 42) out of bounds for length 85

    client
        .connect_udp_send_datagram(session_id, PING, &
        .unwrap

    exchange_packets

    let (id, datagram) = proxy
        java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 17
       java.lang.StringIndexOutOfBoundsException: Range [19, 17) out of bounds for length 27
            if        .java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 83
                session,
                datagram,
            }) = event
            {
((.(,)
            } else {
                
            }
        })
.(;
    assert_eq!(session_id, id);
    assert_eq!(            (

    proxy_session.if let Http3ServerEvent(java.lang.StringIndexOutOfBoundsException: Range [74, 73) out of bounds for length 87

    m ,& alse ;

    let (id, datagram) = client
        .events                 (java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
        .find_map(|event)
            if let Http3ClientEvent::ConnectUdp(;
     ,
                datagram,
            }) = event
            {
               ((,))
            } else {
                java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
            }
        })
        .unwrap();whilenext_event.java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 46

    assert_eq!(session_id, id);
    assert_eq!(&datagram, java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 29

     java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
        
            .connect_udp_close_session(session_id, 0,))
            .unwrap();

        assertm(

        proxy
            )
            .find(|event| {
                matches!(
                    event,
                    );
                        client.process_inputjava.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 53
                        ..assertjava.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 29
                    }) if session.java.lang.StringIndexOutOfBoundsException: Range [16, 1) out of bounds for length 18
                )
            })
            .unwrap(
    } else ( java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
        proxy_session.close_session(0, "kthxbye", now    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 15

        )java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6

    
            .    let (mut client,_java.lang.StringIndexOutOfBoundsException: Range [57, 55) out of bounds for length 82
            .find(|event| {
                java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
                    .)
                    Http3ClientEventiflet:(java.lang.StringIndexOutOfBoundsException: Range [71, 69) out of bounds for length 83
                        s
                        ..
                    }) }
                )
}
            .unwrap();
    }
}

#[test]
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 28
}

#[test]
fn session_lifecycle_server_closes
    session_lifecycle(false)}
}

#[test]
fn connect_via_proxy() {
    fixture_init( let( ,p java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 84
    neqo_common::log:.(

    let mut(,
    let mut server =            ,s.,/java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44

    let (mut client_outerjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        (;

    let mut needs_auth = false;
 innerjava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 64
    'outer:
        for java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 44
             {
                Http3ClientEvent::AuthenticationNeeded => {
                    )
                }
                Http3ClientEvent:java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 60
                _ => {}

        }

         needs_authjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
client_innerjava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 72
            needs_auth = false;
        }

        exchange_packets_through_proxy(
& ,
            &mut client_inner,
            &mut proxy,
            &mut serverlet mut java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
            connect_udp_session_id
            &proxy_sessionout:client&proxy
        );
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5

    client_inner.close(nowif ()= java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

    'outer: loop 
        for event in     let session_id = client 
            if let            )java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
                state: java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 26
                java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 18
            } = event
            {
                break 'outer;
            }
}

        exchange_packets_through_proxy(
            &mut client_outer,
            &mutheaders,
            &mut proxy,            )
            &mut server,
            connect_udp_session_id,
            &proxy_session,
        );
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}

#[test]
tionfailedfalse)
fn send_dgram_on_non_active_session() {
    )java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

    ssert_eq!
        client.connect_udp_send_datagram(connect_udp_session_id, &[], None, now()),
        Err(Error::Unavailable)
    );
}

/// A server datagram, arriving before the server accepted the session, is dropped.
#[test]
fn server_datagram_before_accept() {
    for in_order in [true, false] {
        let (mut client, mut proxy, _connect_udp_session_id) = initiate_new_session();
        exchange_packets(&mut client, &mut proxy, false, None);

        let proxy_session = proxy
            .events()
            .find_map(|event| {
                if let Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::NewSession {
                    session,
                    ..
                }) = event
                {
                    Some(session)
                } else {
                    None
                }
            })
            .unwrap();
        proxy_session
            .response(&SessionAcceptAction::Accept, now())
            .unwrap();
        let proxy_accept = proxy.process_output(now()).dgram().unwrap();
        assert!(proxy.process_output(now()).dgram().is_none());

        proxy_session.send_datagram(b"ping", None, now()).unwrap();
        let proxy_dgram = proxy.process_output(now()).dgram().unwrap();

        while client.next_event().is_some() {}

        if in_order {
            client.process_input(proxy_accept, now());
            assert!(matches!(
                client.events().next(),
                Some(Http3ClientEvent::ConnectUdp(
                    ConnectUdpEvent::NewSession { .. }
                ))
            ));
            client.process_input(proxy_dgram, now());
            assert!(matches!(
                client.events().next(),
                Some(Http3ClientEvent::ConnectUdp(
                    ConnectUdpEvent::Datagram { .. }
                ))
            ));
        } else {
            client.process_input(proxy_dgram, now());
            assert_eq!(client.events().next(), None,);
            client.process_input(proxy_accept, now());
            assert!(matches!(
                client.events().next(),
                Some(Http3ClientEvent::ConnectUdp(
                    ConnectUdpEvent::NewSession { .. }
                ))
            ));
            assert_eq!(client.events().next(), None,);
        }
    }
}

#[test]
fn create_session_without_connect_setting() {
    let mut client = http3_client_with_params(Http3Parameters::default().connect(false));
    assert_eq!(
        client.connect_udp_create_session(now(), &Uri::from_static("https://example.com/"), &[]),
        Err(Error::Unavailable)
    );
}

#[test]
fn server_stream_reset_results_in_client_session_close() {
    let (mut client, mut proxy, _connect_udp_session_id) = initiate_new_session();
    exchange_packets(&mut client, &mut proxy, false, None);

    while client.next_event().is_some() {}

    let proxy_session = proxy
        .events()
        .find_map(|event| {
            if let Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::NewSession {
                session, ..
            }) = event
            {
                Some(session)
            } else {
                None
            }
        })
        .unwrap();

    proxy_session.reset_send().unwrap();
    exchange_packets(&mut client, &mut proxy, false, None);

    assert!(matches!(
        client.next_event(),
        Some(Http3ClientEvent::ConnectUdp(
            ConnectUdpEvent::SessionClosed { .. }
        ))
    ));
}

#[test]
fn connect_udp_operation_on_fetch_stream() {
    let (mut client, _proxy
    let fetch_stream = client
        .fetch(
            now(),
            "GET",
            ("https", "something.com", "/"),
            &[],
            Priority::default(),
        )
        .unwrap();

    assert_eq!(
        client.connect_udp_send_datagram(fetch_stream, PING, None, now()),
        Err(Error::InvalidStreamId)
    );

    assert_eq!(
        client.connect_udp_close_session(fetch_stream, 0, "kthxbye", now()),
        Err(Error::InvalidStreamId)
    );
}

#[test]
#[expect(clippy::too_many_lines, reason = "OK for a test.")]
fn session_lifecycle_with_http_datagram_capsule() {
    fixture_init();
    neqo_common::log::init(None);

    let conn_params = ConnectionParameters::default().datagram_size(0);

    let mut client = http3_client_with_params(
        Http3Parameters::default()
            .connect(true)
            .connection_parameters(conn_params.clone()),
    );

    let mut proxy = http3_server_with_params(
        Http3Parameters::default()
            .connect(true)
            .connection_parameters(conn_params),
    );

    let out = test_fixture::connect_peers(&mut client, &mut proxy);
    if let Some(dgram) = out {
        let out = proxy.process(Some(dgram), now()).dgram();
        if let Some(dgram) = out {
            client.process_input(dgram, now());
        }
    }

    let session_id = client
        .connect_udp_create_session(
            now(),
            &format!("https://[{}]:{}/", DEFAULT_ADDR.ip(), DEFAULT_ADDR.port())
                .parse::<Uri>()
                .unwrap(),
            &[],
        )
        .unwrap();

    exchange_packets(&mut client, &mut proxy, false, None);

    let proxy_session = proxy
        .events()
        .find_map(|event| {
            if let Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::NewSession {
                session,
                headers,
            }) = event
            {
                assert_eq!(session.stream_id(), session_id);
                assert!(
                    headers.contains_header(":method", "CONNECT")
                        && headers.contains_header(":protocol", "connect-udp")
                        && headers.contains_header("capsule-protocol", "?1")
                );
                session
                    .response(&SessionAcceptAction::Accept, now())
                    .unwrap();
                Some(session)
            } else {
                None
            }
        })
        .unwrap();

    exchange_packets(&mut client, &mut proxy, false, None);

    client
        .events()
        .find(|e| {
            matches!(
                e,
                Http3ClientEvent::ConnectUdp(ConnectUdpEvent::NewSession { stream_id, status, ..})
                if *stream_id == session_id && *status == 200
            )
        })
        .unwrap();

    qinfo!("Testing Capsule send (client -> server)");
    client
        .connect_udp_send_datagram(session_id, PING, None, now())
        .unwrap();

    exchange_packets(&mut client, &mut proxy, false, None);

    let (id, datagram) = proxy
        .events()
        .find_map(|event| {
            if let Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::Datagram {
                session,
                datagram,
            }) = event
            {
                Some((session.stream_id(), datagram))
            } else {
                None
            }
        })
        .unwrap();
    assert_eq!(session_id, id);
    assert_eq!(&datagram, PING);
    qinfo!("Capsule decode successful (client -> server)");

    qinfo!("Testing Capsule receive (server -> client)");
    proxy_session.send_datagram(PONG, None, now()).unwrap();

    exchange_packets(&mut client, &mut proxy, false, None);

    let (id, datagram) = client
        .events()
        .find_map(|event| {
            if let Http3ClientEvent::ConnectUdp(ConnectUdpEvent::Datagram {
                session_id: id,
                datagram,
            }) = event
            {
                Some((id, datagram))
            } else {
                None
            }
        })
        .unwrap();
    assert_eq!(session_id, id);
    assert_eq!(&datagram, PONG);
    qinfo!("Capsule encode/decode successful (server -> client)");

    qinfo!("Testing multiple datagrams via Capsules");
    for i in 0..5 {
        let mut payload = PING.to_vec();
        payload.push(i);
        client
            .connect_udp_send_datagram(session_id, &payload, None, now())
            .unwrap();
    }

    exchange_packets(&mut client, &mut proxy, false, None);

    let mut count = 0;
    for event in proxy.events() {
        if let Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::Datagram { session, datagram }) =
            event
        {
            assert_eq!(session.stream_id(), session_id);
            assert_eq!(&datagram.as_ref()[..4], PING);
            count += 1;
        }
    }
    assert_eq!(count, 5, "Should receive all 5 datagrams via Capsules");
    qinfo!("Multiple Capsules transmitted successfully");

    client
        .connect_udp_close_session(session_id, 0, "capsule test complete", now())
        .unwrap();

    exchange_packets(&mut client, &mut proxy, false, None);

    proxy
        .events()
        .find(|event| {
            matches!(
                event,
                Http3ServerEvent::ConnectUdp(ConnectUdpServerEvent::SessionClosed {
                    session,
                    ..
                }) if session.stream_id() == session_id
            )
        })
        .unwrap();

    assert_eq!(
        client.transport_stats().frame_tx.datagram,
        0,
        "No QUIC datagram frames should have been sent by client"
    );

    qinfo!("HTTP DATAGRAM Capsule test completed successfully");
}