use metacrate_grid_agent::{
    AgentService, ConfigLoader, GridEventKind, ObservableEvent, OperatingMode,
};
use std::error::Error;
use std::fmt;
use std::path::PathBuf;
#[cfg(feature = "live-grid")]
use std::sync::Arc;
#[cfg(feature = "live-grid")]
use std::time::{Duration, SystemTime, UNIX_EPOCH};

const MAX_ARGUMENTS: usize = 8;

#[derive(Debug)]
struct CliError(String);

impl fmt::Display for CliError {
    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
        formatter.write_str(&self.0)
    }
}

impl Error for CliError {}

fn color_disabled() -> bool {
    std::env::var_os("NO_COLOR").is_some()
        || std::env::var_os("TERM").is_some_and(|value| value == "dumb")
}

#[derive(Clone, Copy, Default, Eq, PartialEq)]
enum Operation {
    #[default]
    Serve,
    CheckConfig,
    RunOnce,
    Tui,
    TuiClient,
    PrintPaths,
    Acceptance,
    CheckLiveOptIns,
}

#[derive(Default)]
struct Options {
    config: Option<PathBuf>,
    operation: Operation,
    evidence: Option<PathBuf>,
}

fn options() -> Result<Option<Options>, CliError> {
    let mut result = Options::default();
    let mut arguments = std::env::args_os().skip(1);
    let mut count = 0;
    while let Some(argument) = arguments.next() {
        count += 1;
        if count > MAX_ARGUMENTS {
            return Err(CliError(format!(
                "at most {MAX_ARGUMENTS} command-line arguments are accepted"
            )));
        }
        if argument == "--help" || argument == "-h" {
            println!(
                "metacrate-grid-agent [--config PATH] [--check-config | --run-once | --tui | --tui-client | --print-paths | --acceptance-evidence PATH | --check-live-opt-ins]\n\
                 Configuration precedence: defaults < JSON < secret files < environment.\n\
                 With no --config, the platform default is used when it exists."
            );
            return Ok(None);
        } else if argument == "--version" || argument == "-V" {
            println!("metacrate-grid-agent {}", env!("CARGO_PKG_VERSION"));
            return Ok(None);
        }
        if argument == "--check-config" {
            set_operation(&mut result, Operation::CheckConfig)?;
        } else if argument == "--run-once" {
            set_operation(&mut result, Operation::RunOnce)?;
        } else if argument == "--tui" {
            set_operation(&mut result, Operation::Tui)?;
        } else if argument == "--tui-client" {
            set_operation(&mut result, Operation::TuiClient)?;
        } else if argument == "--print-paths" {
            set_operation(&mut result, Operation::PrintPaths)?;
        } else if argument == "--acceptance-evidence" {
            set_operation(&mut result, Operation::Acceptance)?;
            let path = arguments
                .next()
                .ok_or_else(|| CliError("--acceptance-evidence requires a new path".into()))?;
            count += 1;
            result.evidence = Some(PathBuf::from(path));
        } else if argument == "--check-live-opt-ins" {
            set_operation(&mut result, Operation::CheckLiveOptIns)?;
        } else if argument == "--config" {
            let path = arguments
                .next()
                .ok_or_else(|| CliError("--config requires a path".into()))?;
            count += 1;
            result.config = Some(PathBuf::from(path));
        } else {
            let argument = PathBuf::from(argument);
            return Err(CliError(format!(
                "unknown argument {}; use --help",
                argument.display()
            )));
        }
    }
    Ok(Some(result))
}

fn set_operation(options: &mut Options, operation: Operation) -> Result<(), CliError> {
    if options.operation != Operation::Serve {
        return Err(CliError("operation flags are mutually exclusive".into()));
    }
    options.operation = operation;
    Ok(())
}

#[tokio::main]
#[allow(clippy::too_many_lines)]
async fn main() -> Result<(), Box<dyn Error>> {
    let Some(options) = options()? else {
        return Ok(());
    };
    let platform_paths = metacrate_grid_agent::PlatformPaths::discover();
    if options.operation == Operation::PrintPaths {
        println!("config={}", platform_paths.config_file.display());
        println!("data={}", platform_paths.data_directory.display());
        return Ok(());
    }
    if options.operation == Operation::Acceptance {
        let evidence = options
            .evidence
            .ok_or_else(|| CliError("acceptance evidence path is required".into()))?;
        let written = metacrate_grid_agent::run_deterministic_acceptance(
            evidence,
            metacrate_grid_agent::AcceptanceBudgets::default(),
        )
        .await?;
        println!(
            "deterministic acceptance passed; evidence={}",
            written.display()
        );
        return Ok(());
    }
    if options.operation == Operation::CheckLiveOptIns {
        let opt_ins =
            metacrate_grid_agent::LiveGridOptIns::from_environment(|name| std::env::var(name).ok())
                .validate()?;
        println!(
            "live opt-ins: login={} chat_im={} script={} landmarks={} build={} visual={}",
            opt_ins.login,
            opt_ins.chat_and_im,
            opt_ins.script_delivery,
            opt_ins.landmarks_and_roaming,
            opt_ins.reversible_build,
            opt_ins.visual_capture
        );
        return Ok(());
    }
    let mut loader = ConfigLoader::new();
    let config_path = options.config.or_else(|| {
        platform_paths
            .config_file
            .is_file()
            .then_some(platform_paths.config_file)
    });
    if let Some(path) = config_path {
        loader = loader.with_file(path);
    }
    let config = loader.load()?;
    if options.operation == Operation::CheckConfig {
        println!("configuration is valid for {:?} mode", config.mode);
        return Ok(());
    }
    if options.operation == Operation::TuiClient {
        let token = config
            .control
            .operator_token
            .as_ref()
            .ok_or_else(|| CliError("split TUI requires a configured operator token".into()))?;
        let client = metacrate_grid_agent::ReconnectingTcpTransport::new(
            config.control.listen,
            token.clone(),
            config.control.limits,
        );
        metacrate_grid_agent::tui::run_terminal(std::sync::Arc::new(client), !color_disabled())
            .await?;
        return Ok(());
    }
    if config.mode != OperatingMode::OfflineFake {
        #[cfg(feature = "live-grid")]
        return run_live(
            config,
            options.operation == Operation::RunOnce,
            options.operation == Operation::Tui,
        )
        .await;
        #[cfg(not(feature = "live-grid"))]
        return Err(CliError(
            "live grid mode requires rebuilding with --features live-grid".into(),
        )
        .into());
    }

    if options.operation == Operation::Tui {
        return Err(CliError("embedded TUI requires live-grid mode".into()).into());
    }
    let startup_timeout = config.timeouts.startup;
    let mut handle = AgentService::offline(config)?.start()?;
    if options.operation == Operation::RunOnce {
        tokio::time::timeout(startup_timeout, async {
            loop {
                match handle.next_event().await {
                    Some(ObservableEvent::Grid(event))
                        if event.kind == GridEventKind::BackendReady =>
                    {
                        return Ok::<(), CliError>(());
                    }
                    Some(_) => {}
                    None => {
                        return Err(CliError("service stopped before backend readiness".into()));
                    }
                }
            }
        })
        .await
        .map_err(|_| CliError("timed out waiting for offline backend readiness".into()))??;
        handle.shutdown().await?;
        println!("grid agent completed one offline startup/shutdown cycle");
        return Ok(());
    }
    println!("grid agent started in offline/fake mode; press Ctrl-C to stop");
    loop {
        tokio::select! {
            signal = tokio::signal::ctrl_c() => {
                signal?;
                break;
            }
            event = handle.next_event() => {
                if event.is_none() {
                    break;
                }
            }
        }
    }
    handle.shutdown().await?;
    println!("grid agent stopped cleanly");
    Ok(())
}

#[cfg(feature = "live-grid")]
#[allow(clippy::too_many_lines)]
async fn run_live(
    config: metacrate_grid_agent::AgentConfig,
    run_once: bool,
    tui: bool,
) -> Result<(), Box<dyn Error>> {
    use metacrate_grid_agent::{
        AgentControlTarget, BehaviorObservation, ControlEventKind, ControlPlane, ControlTarget,
        GridSessionBackend, LibremetaverseClientOwner, OperatingMode, RuntimeControlCommand,
        SessionControl, SessionObservation, SessionState, SessionSupervisor, TcpControlConfig,
        TcpControlServer,
    };

    let connection = config.grid.clone().ok_or_else(|| {
        CliError("validated live configuration did not contain a grid connection".into())
    })?;
    let owner = LibremetaverseClientOwner::new()?;
    let mut live = start_live_interactions(&config, &owner)?;
    let backend = match owner.session_backend_with_agent_services(
        connection,
        live.interaction.ingress(),
        live.perception.clone(),
        live.behavior.ingress(),
    ) {
        Ok(backend) => backend,
        Err(error) => {
            live.interaction.shutdown().await?;
            live.behavior.shutdown().await?;
            return Err(error.into());
        }
    };
    let erased: Arc<dyn GridSessionBackend> = Arc::new(backend);
    let mut handle = SessionSupervisor::new(
        erased,
        config.reconnect,
        config.limits.control_queue,
        config.limits.observable_queue,
    )?
    .start();
    live.vision.set_generation(handle.status().generation);

    if run_once {
        let readiness = tokio::time::timeout(config.timeouts.startup, async {
            loop {
                match handle.next_observation().await {
                    Some(event @ SessionObservation::Transition { status, .. })
                        if status.agent_ready =>
                    {
                        live.vision.set_generation(status.generation);
                        record_session_observation(&live.observability, &event);
                        return Ok::<(), CliError>(());
                    }
                    Some(
                        event @ SessionObservation::Transition {
                            status:
                                status @ metacrate_grid_agent::SessionStatus {
                                    state: SessionState::AuthenticationBlocked,
                                    ..
                                },
                            ..
                        },
                    ) => {
                        live.vision.set_generation(status.generation);
                        record_session_observation(&live.observability, &event);
                        return Err(CliError(
                            "grid authentication/configuration requires operator action".into(),
                        ));
                    }
                    Some(event) => record_session_observation(&live.observability, &event),
                    None => {
                        return Err(CliError(
                            "session supervisor stopped before readiness".into(),
                        ));
                    }
                }
            }
        })
        .await;
        let readiness = match readiness {
            Ok(result) => result,
            Err(_) => Err(CliError("timed out waiting for full grid readiness".into())),
        };
        if let Err(error) = readiness {
            let session_result = handle.shutdown().await;
            let interaction_result = live.interaction.shutdown().await;
            let behavior_result = live.behavior.shutdown().await;
            session_result?;
            interaction_result?;
            behavior_result?;
            return Err(error.into());
        }
        let session_result = handle.shutdown().await;
        let interaction_result = live.interaction.shutdown().await;
        let behavior_result = live.behavior.shutdown().await;
        session_result?;
        interaction_result?;
        behavior_result?;
        println!("grid agent completed one supervised login/logout cycle");
        return Ok(());
    }

    let (control_target, mut control_commands) = AgentControlTarget::new(
        live.conversations.clone(),
        live.policy.clone(),
        live.audit.clone(),
        live.behavior.ingress(),
        config.limits.control_queue,
    )?;
    control_target.attach_observability(live.observability.clone());
    control_target.attach_build_control(live.build_control.clone());
    control_target.attach_vision_control(live.vision.clone());
    control_target.update_session(handle.status());
    let erased_target: Arc<dyn ControlTarget> = control_target.clone();
    let (control_plane, integrated_client, control_server) = match config.mode {
        OperatingMode::Integrated => {
            let (plane, client) = ControlPlane::integrated(erased_target, config.control.limits)?;
            (plane, Some(client), None)
        }
        OperatingMode::SplitService => {
            let operator = config.control.operator_token.clone().ok_or_else(|| {
                CliError("validated split configuration omitted its operator token".into())
            })?;
            let plane = ControlPlane::new(
                erased_target,
                operator,
                config.control.observer_token.clone(),
                config.control.limits,
            )?;
            let transport = TcpControlConfig {
                listen: config.control.listen,
                limits: config.control.limits,
            };
            let server = if let Some(tls) = &config.control.remote_tls {
                eprintln!(
                    "WARNING: remote control is enabled with TLS; protect operator tokens and certificate keys"
                );
                TcpControlServer::bind_tls(plane.clone(), transport, tls.server_config()?).await?
            } else {
                TcpControlServer::bind(plane.clone(), transport).await?
            };
            println!(
                "grid agent control plane listening on {}",
                server.local_addr()
            );
            (plane, None, Some(server))
        }
        OperatingMode::OfflineFake => {
            return Err(CliError("offline mode reached the live control plane".into()).into());
        }
    };

    let _tui_task = if tui {
        let client = integrated_client.ok_or_else(|| {
            CliError("--tui requires integrated mode; use --tui-client for split mode".into())
        })?;
        Some(tokio::spawn(metacrate_grid_agent::tui::run_terminal(
            Arc::new(client),
            !color_disabled(),
        )))
    } else {
        None
    };

    println!("grid agent session supervisor started; press Ctrl-C to stop");
    let mut signal_error = None;
    let mut control_failure = None;
    let mut active_interactions = 0_usize;
    loop {
        tokio::select! {
            signal = tokio::signal::ctrl_c() => {
                if let Err(error) = signal {
                    signal_error = Some(error);
                }
                break;
            }
            event = handle.next_observation() => {
                let Some(event) = event else { break; };
                record_session_observation(&live.observability, &event);
                if let SessionObservation::Transition { status, reason, retry_in } = event {
                    live.vision.set_generation(status.generation);
                    control_target.update_session(status);
                    live.landmark_roaming
                        .update_pause(|pause| pause.degraded = !status.agent_ready);
                    control_plane.publish(ControlEventKind::StateChanged {
                        component: "session".into(),
                        state: status.state.as_str().into(),
                    });
                    println!(
                        "grid session state={} generation={} transport_connected={} agent_ready={} reason={reason:?} retry_in={retry_in:?}",
                        status.state.as_str(),
                        status.generation,
                        status.transport_connected,
                        status.agent_ready,
                    );
                }
            }
            event = live.interaction.next_observation() => {
                let Some(event) = event else { break; };
                match &event {
                    metacrate_grid_agent::InteractionObservation::InferenceStarted { .. } => {
                        active_interactions = active_interactions.saturating_add(1);
                    }
                    metacrate_grid_agent::InteractionObservation::InferenceFinished { .. } => {
                        active_interactions = active_interactions.saturating_sub(1);
                    }
                    _ => {}
                }
                live.landmark_roaming.update_pause(|pause| {
                    pause.conversation = active_interactions != 0;
                });
                record_interaction_observation(&live.observability, &event);
                println!("grid interaction event={event:?}");
            }
            event = live.perception_observations.recv() => {
                let Some(event) = event else { break; };
                record_perception_observation(&live.observability, &event);
                println!("grid perception event={event:?}");
            }
            event = live.behavior.next_observation() => {
                let Some(event) = event else { break; };
                record_behavior_observation(&live.observability, &event);
                if let BehaviorObservation::Transition { to, .. } = &event {
                    control_target.update_behavior(*to);
                    control_plane.publish(ControlEventKind::StateChanged {
                        component: "behavior".into(),
                        state: format!("{to:?}").to_ascii_lowercase(),
                    });
                }
                println!("grid behavior event={event:?}");
            }
            command = control_commands.recv() => {
                let Some(command) = command else { break; };
                match command {
                    RuntimeControlCommand::Pause => {
                        live.landmark_roaming
                            .update_pause(|pause| pause.operator = true);
                        if let Err(error) = handle.control(SessionControl::Pause).await {
                            control_failure = Some(error.to_string());
                            break;
                        }
                    }
                    RuntimeControlCommand::Resume => {
                        if let Err(error) = handle.control(SessionControl::Resume).await {
                            control_failure = Some(error.to_string());
                            break;
                        }
                        live.landmark_roaming
                            .update_pause(|pause| pause.operator = false);
                    }
                    RuntimeControlCommand::ForceReconnect => {
                        if let Err(error) = handle.control(SessionControl::ForceReconnect).await {
                            control_failure = Some(error.to_string());
                            break;
                        }
                    }
                    RuntimeControlCommand::OperatorMessage { message } => {
                        control_plane.publish(ControlEventKind::StateChanged {
                            component: "operator_message".into(),
                            state: format!("accepted_{}_bytes", message.len()),
                        });
                    }
                    RuntimeControlCommand::GracefulShutdown => break,
                }
            }
        }
    }
    let shutdown_event = metacrate_grid_agent::EventDraft::new(
        metacrate_grid_agent::EventFamily::Shutdown,
        metacrate_grid_agent::EventSeverity::Info,
        "service",
        metacrate_grid_agent::EventOrigin::Service,
    )?
    .result_code("requested")?;
    let _ = live.observability.record(shutdown_event);
    control_target.mark_stopping();
    live.landmark_roaming.shutdown().await;
    let session_result = handle.shutdown().await;
    let interaction_result = live.interaction.shutdown().await;
    let behavior_result = live.behavior.shutdown().await;
    let control_result = if let Some(server) = control_server {
        server.shutdown().await
    } else {
        Ok(())
    };
    session_result?;
    interaction_result?;
    behavior_result?;
    control_result?;
    if let Some(error) = signal_error {
        return Err(error.into());
    }
    if let Some(error) = control_failure {
        return Err(CliError(format!("control command failed: {error}")).into());
    }
    println!("grid agent stopped cleanly");
    Ok(())
}

#[cfg(feature = "live-grid")]
struct LiveInteractions {
    interaction: metacrate_grid_agent::InteractionHandle,
    perception: metacrate_grid_agent::PerceptionIngress,
    perception_observations:
        tokio::sync::mpsc::Receiver<metacrate_grid_agent::PerceptionObservation>,
    behavior: metacrate_grid_agent::BehaviorHandle,
    conversations: Arc<metacrate_grid_agent::ConversationStore>,
    policy: Arc<metacrate_grid_agent::PolicyGateway>,
    audit: Arc<metacrate_grid_agent::MemoryPolicyAudit>,
    observability: Arc<metacrate_grid_agent::Observability>,
    _landmark_intake: metacrate_grid_agent::LibremetaverseLandmarkIntake,
    landmark_roaming: metacrate_grid_agent::LandmarkRoamingHandle,
    build_control: Arc<dyn metacrate_grid_agent::BuildControl>,
    vision:
        Arc<metacrate_grid_agent::VisionService<metacrate_grid_agent::LibremetaverseSceneSource>>,
}

#[cfg(feature = "live-grid")]
#[allow(clippy::too_many_lines)]
fn start_live_interactions(
    config: &metacrate_grid_agent::AgentConfig,
    owner: &metacrate_grid_agent::LibremetaverseClientOwner,
) -> Result<LiveInteractions, Box<dyn Error>> {
    use metacrate_grid_agent::{
        AuthorizedBackendRouter, AuthorizedToolBackend, BehaviorBackend, BehaviorController,
        BuildLimits, BuildService, BuildToolBackend, ConversationStore, InteractionCoordinator,
        LandmarkLimits, LandmarkService, LandmarkToolBackend, LibremetaverseBuildGrid,
        LibremetaverseLandmarkGrid, LibremetaverseLandmarkIntake, LibremetaverseSceneSource,
        LibremetaverseScriptInventory, LlmClient, LlmTransportLimits, MemoryPolicyAudit,
        Observability, ObservabilityLimits, PerceptionBackend, PolicyAuditSink, PolicyGateway,
        PolicyLimits, PolicyLlmResponder, ScriptDeliveryBackend, ScriptDeliverySettings,
        SystemRoamingRandom, ToolLoopLimits, UnifiedPolicyAudit, VisionAugmentedResponder,
        VisionLimits, VisionService, behavior_policy_tools, build_policy_tools,
        landmark_policy_tools, perception_policy_tools, script_delivery_policy_tool,
    };

    let transport_limits = LlmTransportLimits {
        request_timeout: config.timeouts.request,
        total_timeout: config.interaction.model_timeout,
        max_prompt_bytes: config.limits.max_body_bytes,
        max_response_bytes: config.limits.max_body_bytes,
        max_concurrent_requests: config.interaction.max_concurrent_inference,
        ..LlmTransportLimits::default()
    };
    let conversation = Arc::new(ConversationStore::from_config(config)?);
    let perception = Arc::new(PerceptionBackend::new(
        Arc::new(owner.world_snapshot_source()),
        Arc::clone(&conversation),
        config.limits.observable_queue,
    )?);
    let perception_ingress = perception.ingress();
    let perception_observations = perception
        .take_observations()
        .ok_or_else(|| CliError("perception observation receiver already claimed".into()))?;
    let behavior = BehaviorController::new(
        config.behavior.clone(),
        Arc::new(owner.embodiment_sink()),
        config.limits.control_queue,
        config.limits.observable_queue,
        config.timeouts.shutdown,
    )?
    .start();
    let behavior_ingress = behavior.ingress();
    let client = Arc::new(LlmClient::new(config.llm.clone(), transport_limits)?);
    let audit = Arc::new(MemoryPolicyAudit::new(config.limits.observable_queue)?);
    let observability = Observability::memory(ObservabilityLimits {
        ring_events: config.limits.observable_queue,
        subscriber_queue: config.limits.observable_queue.min(512),
        journal_queue: config.limits.observable_queue,
        ..ObservabilityLimits::default()
    })?;
    let audit_sink: Arc<dyn PolicyAuditSink> = Arc::new(UnifiedPolicyAudit::new(
        audit.clone(),
        observability.clone(),
    ));
    let mut tools = perception_policy_tools()?;
    tools.extend(behavior_policy_tools(&config.behavior)?);
    let script_inventory = Arc::new(LibremetaverseScriptInventory::new(owner.client()));
    let script_backend: Arc<dyn AuthorizedToolBackend> = Arc::new(ScriptDeliveryBackend::new(
        script_inventory,
        ScriptDeliverySettings::default(),
    )?);
    tools.push(script_delivery_policy_tool(
        ScriptDeliverySettings::default(),
    )?);
    let build_service = Arc::new(BuildService::new(
        Arc::new(LibremetaverseBuildGrid::new(owner)),
        BuildLimits::default(),
    )?);
    let build_control: Arc<dyn metacrate_grid_agent::BuildControl> = build_service.clone();
    let build_backend: Arc<dyn AuthorizedToolBackend> =
        Arc::new(BuildToolBackend::new(build_service));
    tools.extend(build_policy_tools(BuildLimits::default())?);
    let landmark_service = Arc::new(LandmarkService::new(
        Arc::new(LibremetaverseLandmarkGrid::new(owner)),
        Arc::new(SystemRoamingRandom::default()),
        config.authorized_avatar_uuids.clone(),
        LandmarkLimits::default(),
        Some(config.storage_path.join("landmarks.json")),
    )?);
    let landmark_backend: Arc<dyn AuthorizedToolBackend> = Arc::new(
        LandmarkToolBackend::new(Arc::clone(&landmark_service))
            .with_behavior(behavior_ingress.clone()),
    );
    let landmark_intake = LibremetaverseLandmarkIntake::start(&landmark_service, owner)?;
    let landmark_roaming = landmark_service.start_roaming_runner(
        metacrate_grid_agent::RoamingPause {
            degraded: true,
            ..metacrate_grid_agent::RoamingPause::default()
        },
        Some(behavior_ingress.clone()),
    );
    tools.extend(landmark_policy_tools(LandmarkLimits::default())?);
    let routes = tools
        .iter()
        .map(|tool| tool.definition.name.as_str().to_owned())
        .map(|name| {
            let backend: Arc<dyn AuthorizedToolBackend> = if name.starts_with("build_object_") {
                Arc::clone(&build_backend)
            } else if name == metacrate_grid_agent::SCRIPT_DELIVERY_TOOL {
                Arc::clone(&script_backend)
            } else if name.starts_with("landmark_") {
                Arc::clone(&landmark_backend)
            } else if name.starts_with("behavior_") {
                Arc::new(BehaviorBackend::new(behavior_ingress.clone()))
            } else {
                perception.clone()
            };
            (name, backend)
        })
        .collect::<Vec<_>>();
    let gateway = Arc::new(PolicyGateway::new(
        config.authorized_avatar_uuids.clone(),
        tools,
        PolicyLimits::default(),
        audit_sink,
    )?);
    let loop_limits = ToolLoopLimits {
        max_tool_calls_per_turn: config.limits.max_tool_calls,
        max_tool_calls_per_session: config.limits.max_tool_calls,
        max_history_messages: config.conversation.limits.max_turns_per_session,
        max_history_bytes: config.conversation.limits.max_session_bytes,
        wall_clock_timeout: config.interaction.model_timeout,
        ..ToolLoopLimits::default()
    };
    let now = Arc::new(|| {
        SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .map_or(0, |duration| duration.as_secs())
    });
    let routed_backend: Arc<dyn AuthorizedToolBackend> =
        Arc::new(AuthorizedBackendRouter::new(routes)?);
    let responder = Arc::new(PolicyLlmResponder::new(
        client,
        gateway.clone(),
        routed_backend,
        loop_limits,
        now,
    )?);
    let vision_limits = VisionLimits::default();
    let vision = Arc::new(VisionService::new(
        Arc::new(LibremetaverseSceneSource::new(owner, vision_limits)),
        vision_limits,
    )?);
    let responder = Arc::new(VisionAugmentedResponder::new(vision.clone(), responder));
    let sink = Arc::new(owner.interaction_sink());
    let pacer: Arc<dyn metacrate_grid_agent::ResponsePacer> = Arc::new(behavior_ingress);
    let interaction = InteractionCoordinator::new(
        config.interaction.clone(),
        libremetaverse_types::UUID::zero(),
        config.authorized_avatar_uuids.clone(),
        conversation.clone(),
        responder,
        sink,
        config.limits.grid_event_queue,
        config.limits.observable_queue,
        config.timeouts.shutdown,
    )?
    .with_response_pacer(pacer)
    .start();
    Ok(LiveInteractions {
        interaction,
        perception: perception_ingress,
        perception_observations,
        behavior,
        conversations: conversation,
        policy: gateway,
        audit,
        observability,
        _landmark_intake: landmark_intake,
        landmark_roaming,
        build_control,
        vision,
    })
}

#[cfg(feature = "live-grid")]
fn record_session_observation(
    observer: &metacrate_grid_agent::Observability,
    observation: &metacrate_grid_agent::SessionObservation,
) {
    use metacrate_grid_agent::{
        EventDraft, EventFamily, EventOrigin, EventSeverity, SessionObservation,
    };
    let SessionObservation::Transition {
        status,
        reason,
        retry_in,
    } = observation
    else {
        return;
    };
    observer.metrics().set_ready(status.agent_ready);
    if matches!(
        reason,
        metacrate_grid_agent::SessionReason::TransientTransport
            | metacrate_grid_agent::SessionReason::Maintenance
            | metacrate_grid_agent::SessionReason::Kicked
            | metacrate_grid_agent::SessionReason::SimulatorDisconnected
            | metacrate_grid_agent::SessionReason::ServerFailure
            | metacrate_grid_agent::SessionReason::OperatorForceReconnect
    ) {
        observer.metrics().record_reconnect();
    }
    let event = EventDraft::new(
        EventFamily::LifecycleTransition,
        if status.agent_ready {
            EventSeverity::Info
        } else {
            EventSeverity::Warning
        },
        "session",
        EventOrigin::Grid,
    )
    .and_then(|event| event.reason_code(session_reason_code(*reason)))
    .and_then(|event| {
        event
            .retry_count(status.consecutive_failures)
            .code_field("to", status.state.as_str())
    })
    .and_then(|event| event.field("generation", serde_json::Value::from(status.generation)))
    .and_then(|event| event.field("ready", serde_json::Value::from(status.agent_ready)))
    .and_then(|event| {
        event.field(
            "transport_connected",
            serde_json::Value::from(status.transport_connected),
        )
    })
    .and_then(|event| {
        event.field(
            "retry_millis",
            serde_json::Value::from(retry_in.map_or(0, |duration| {
                u64::try_from(duration.as_millis()).unwrap_or(u64::MAX)
            })),
        )
    });
    if let Ok(event) = event {
        let _ = observer.record(event);
    }
}

#[cfg(feature = "live-grid")]
#[allow(clippy::too_many_lines)]
fn record_interaction_observation(
    observer: &metacrate_grid_agent::Observability,
    observation: &metacrate_grid_agent::InteractionObservation,
) {
    use metacrate_grid_agent::{
        CorrelationIds, EventDraft, EventFamily, EventOrigin, EventSeverity, InferenceOutcome,
        InteractionObservation, MemoryReason, OutcomeCode,
    };
    let event = match observation {
        InteractionObservation::SessionMemory { event } => {
            let (family, state) = match event.reason {
                MemoryReason::SessionCreated => (EventFamily::SessionCreated, "created"),
                MemoryReason::PublicExpired
                | MemoryReason::DirectImExpired
                | MemoryReason::SessionLimitEviction
                | MemoryReason::TotalByteEviction
                | MemoryReason::OperatorDeleted
                | MemoryReason::OperatorExpired => (EventFamily::SessionExpired, "expired"),
                MemoryReason::TurnCompacted
                | MemoryReason::ByteCompacted
                | MemoryReason::ToolResultCompacted => {
                    (EventFamily::LifecycleTransition, "compacted")
                }
                MemoryReason::CorruptSnapshotQuarantined
                | MemoryReason::UnsupportedSnapshotQuarantined
                | MemoryReason::SnapshotTooLargeQuarantined
                | MemoryReason::PermissionsNotVerified => {
                    (EventFamily::LifecycleTransition, "quarantined")
                }
            };
            EventDraft::new(
                family,
                EventSeverity::Info,
                "conversation",
                EventOrigin::Service,
            )
            .and_then(|draft| {
                draft.correlation(CorrelationIds {
                    avatar_id: event.avatar_id.map(|id| id.to_string()),
                    session_id: event.session_id.as_ref().map(|id| id.as_str().to_owned()),
                    ..CorrelationIds::default()
                })
            })
            .and_then(|draft| draft.reason_code(memory_reason_code(event.reason)))
            .and_then(|draft| draft.code_field("state", state))
        }
        InteractionObservation::Suppressed {
            delivery_id,
            reason,
        } => EventDraft::new(
            EventFamily::InboundMessage,
            EventSeverity::Info,
            "interaction",
            EventOrigin::Grid,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                request_id: Some(delivery_id.as_str().to_owned()),
                ..CorrelationIds::default()
            })
        })
        .and_then(|event| event.result_code("suppressed"))
        .and_then(|event| event.reason_code(suppression_reason_code(*reason)))
        .and_then(|event| event.redacted("message_content")),
        InteractionObservation::IntentRouted {
            delivery_id,
            session_id,
            origin,
            intent,
        } => EventDraft::new(
            EventFamily::InboundMessage,
            EventSeverity::Info,
            "interaction",
            EventOrigin::Grid,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                session_id: Some(session_id.as_str().to_owned()),
                request_id: Some(delivery_id.as_str().to_owned()),
                ..CorrelationIds::default()
            })
        })
        .and_then(|event| event.result_code("routed"))
        .and_then(|event| event.code_field("origin", interaction_origin_code(*origin)))
        .and_then(|event| event.code_field("intent", interaction_intent_code(*intent)))
        .and_then(|event| event.redacted("message_content")),
        InteractionObservation::AttentionRequested {
            delivery_id,
            avatar_id,
        } => EventDraft::new(
            EventFamily::ModelActionSummary,
            EventSeverity::Info,
            "behavior",
            EventOrigin::Service,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                avatar_id: Some(avatar_id.to_string()),
                request_id: Some(delivery_id.as_str().to_owned()),
                ..CorrelationIds::default()
            })
        })
        .and_then(|event| event.code_field("summary", "face_speaker")),
        InteractionObservation::InferenceStarted {
            delivery_id,
            session_id,
            prompt_messages,
        } => EventDraft::new(
            EventFamily::InferenceRequest,
            EventSeverity::Info,
            "llm",
            EventOrigin::Service,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                session_id: Some(session_id.as_str().to_owned()),
                request_id: Some(delivery_id.as_str().to_owned()),
                ..CorrelationIds::default()
            })
        })
        .and_then(|event| event.field("prompt_messages", serde_json::Value::from(*prompt_messages)))
        .and_then(|event| event.redacted("prompt_content")),
        InteractionObservation::InferenceFinished {
            delivery_id,
            session_id,
            outcome,
            duration_millis,
        } => {
            observer
                .metrics()
                .record_inference_latency(Duration::from_millis(*duration_millis));
            let (severity, result, metric) = match outcome {
                InferenceOutcome::Completed => {
                    (EventSeverity::Info, "completed", OutcomeCode::Completed)
                }
                InferenceOutcome::Cancelled => {
                    (EventSeverity::Warning, "cancelled", OutcomeCode::Cancelled)
                }
                InferenceOutcome::TimedOut => {
                    (EventSeverity::Warning, "timed_out", OutcomeCode::Failed)
                }
                InferenceOutcome::Failed => (EventSeverity::Error, "failed", OutcomeCode::Failed),
                InferenceOutcome::PolicyRejected => (
                    EventSeverity::Warning,
                    "policy_rejected",
                    OutcomeCode::Denied,
                ),
            };
            observer.metrics().record_inference_outcome(metric);
            EventDraft::new(
                EventFamily::InferenceResult,
                severity,
                "llm",
                EventOrigin::Model,
            )
            .and_then(|event| {
                event.correlation(CorrelationIds {
                    session_id: Some(session_id.as_str().to_owned()),
                    request_id: Some(delivery_id.as_str().to_owned()),
                    ..CorrelationIds::default()
                })
            })
            .map(|event| event.duration_millis(*duration_millis))
            .and_then(|event| event.result_code(result))
            .and_then(|event| event.redacted("response_content"))
        }
        InteractionObservation::Delivery {
            delivery_id,
            session_id,
            channel,
            outcome,
            delivered_parts,
        } => EventDraft::new(
            EventFamily::OutboundMessage,
            EventSeverity::Info,
            "interaction",
            EventOrigin::Service,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                session_id: Some(session_id.as_str().to_owned()),
                request_id: Some(delivery_id.as_str().to_owned()),
                ..CorrelationIds::default()
            })
        })
        .and_then(|event| event.result_code(delivery_outcome_code(*outcome)))
        .and_then(|event| event.code_field("channel", interaction_channel_code(*channel)))
        .and_then(|event| event.field("delivered_parts", serde_json::Value::from(*delivered_parts)))
        .and_then(|event| event.redacted("message_content")),
    };
    if let Ok(event) = event {
        let _ = observer.record(event);
    }
}

#[cfg(feature = "live-grid")]
fn record_perception_observation(
    observer: &metacrate_grid_agent::Observability,
    observation: &metacrate_grid_agent::PerceptionObservation,
) {
    use metacrate_grid_agent::{
        CorrelationIds, EventDraft, EventFamily, EventOrigin, EventSeverity, PerceptionOutcome,
    };
    observer
        .metrics()
        .record_tool_latency(Duration::from_millis(observation.duration_millis));
    let result = match observation.outcome {
        PerceptionOutcome::Completed => "completed",
        PerceptionOutcome::Rejected => "rejected",
    };
    let event = EventDraft::new(
        EventFamily::ToolResult,
        EventSeverity::Info,
        "perception",
        EventOrigin::Service,
    )
    .and_then(|event| {
        event.correlation(CorrelationIds {
            action_id: Some(observation.call_id.as_str().to_owned()),
            ..CorrelationIds::default()
        })
    })
    .map(|event| event.duration_millis(observation.duration_millis))
    .and_then(|event| event.result_code(result))
    .and_then(|event| event.identifier_field("tool", observation.tool.as_str()))
    .and_then(|event| {
        event.field(
            "result_bytes",
            serde_json::Value::from(observation.result_bytes),
        )
    })
    .and_then(|event| event.field("cache_hit", serde_json::Value::from(observation.cache_hit)))
    .and_then(|event| event.redacted("tool_result"));
    if let Ok(event) = event {
        let _ = observer.record(event);
    }
}

#[cfg(feature = "live-grid")]
fn record_behavior_observation(
    observer: &metacrate_grid_agent::Observability,
    observation: &metacrate_grid_agent::BehaviorObservation,
) {
    use metacrate_grid_agent::{
        BehaviorObservation, CorrelationIds, EventDraft, EventFamily, EventOrigin, EventSeverity,
    };
    let event = match observation {
        BehaviorObservation::Transition { from, to, .. } => EventDraft::new(
            EventFamily::BehaviorTransition,
            EventSeverity::Info,
            "behavior",
            EventOrigin::Service,
        )
        .and_then(|event| event.code_field("from", behavior_mode_code(*from)))
        .and_then(|event| event.code_field("to", behavior_mode_code(*to))),
        BehaviorObservation::Action {
            action_id,
            generation,
            action,
            duration_millis,
            outcome,
            ..
        } => EventDraft::new(
            EventFamily::ToolResult,
            EventSeverity::Info,
            "behavior",
            EventOrigin::Service,
        )
        .and_then(|event| {
            event.correlation(CorrelationIds {
                action_id: Some(action_id.clone()),
                ..CorrelationIds::default()
            })
        })
        .map(|event| event.duration_millis(*duration_millis))
        .and_then(|event| event.result_code(behavior_outcome_code(*outcome)))
        .and_then(|event| event.identifier_field("tool", action))
        .and_then(|event| {
            event.field(
                "generation",
                serde_json::Value::from(generation.unwrap_or(0)),
            )
        }),
    };
    if let Ok(event) = event {
        let _ = observer.record(event);
    }
}

#[cfg(feature = "live-grid")]
const fn session_reason_code(reason: metacrate_grid_agent::SessionReason) -> &'static str {
    use metacrate_grid_agent::SessionReason;
    match reason {
        SessionReason::Startup => "startup",
        SessionReason::LoginSucceeded => "login_succeeded",
        SessionReason::AgentReady => "agent_ready",
        SessionReason::ReadinessLost => "readiness_lost",
        SessionReason::TransientTransport => "transient_transport",
        SessionReason::Maintenance => "maintenance",
        SessionReason::Kicked => "kicked",
        SessionReason::SimulatorDisconnected => "simulator_disconnected",
        SessionReason::ServerFailure => "server_failure",
        SessionReason::InvalidCredentials => "invalid_credentials",
        SessionReason::InvalidConfiguration => "invalid_configuration",
        SessionReason::StableSessionReset => "stable_session_reset",
        SessionReason::OperatorPause => "operator_pause",
        SessionReason::OperatorResume => "operator_resume",
        SessionReason::OperatorForceReconnect => "operator_force_reconnect",
        SessionReason::OperatorLogout => "operator_logout",
        SessionReason::ShutdownRequested => "shutdown_requested",
        SessionReason::ShutdownComplete => "shutdown_complete",
    }
}

#[cfg(feature = "live-grid")]
const fn memory_reason_code(reason: metacrate_grid_agent::MemoryReason) -> &'static str {
    use metacrate_grid_agent::MemoryReason;
    match reason {
        MemoryReason::SessionCreated => "session_created",
        MemoryReason::PublicExpired => "public_expired",
        MemoryReason::DirectImExpired => "direct_im_expired",
        MemoryReason::TurnCompacted => "turn_compacted",
        MemoryReason::ByteCompacted => "byte_compacted",
        MemoryReason::ToolResultCompacted => "tool_result_compacted",
        MemoryReason::SessionLimitEviction => "session_limit_eviction",
        MemoryReason::TotalByteEviction => "total_byte_eviction",
        MemoryReason::OperatorDeleted => "operator_deleted",
        MemoryReason::OperatorExpired => "operator_expired",
        MemoryReason::CorruptSnapshotQuarantined => "corrupt_snapshot_quarantined",
        MemoryReason::UnsupportedSnapshotQuarantined => "unsupported_snapshot_quarantined",
        MemoryReason::SnapshotTooLargeQuarantined => "snapshot_too_large_quarantined",
        MemoryReason::PermissionsNotVerified => "permissions_not_verified",
    }
}

#[cfg(feature = "live-grid")]
const fn suppression_reason_code(reason: metacrate_grid_agent::SuppressionReason) -> &'static str {
    use metacrate_grid_agent::SuppressionReason;
    match reason {
        SuppressionReason::SelfEcho => "self_echo",
        SuppressionReason::Duplicate => "duplicate",
        SuppressionReason::Muted => "muted",
        SuppressionReason::UnsupportedSource => "unsupported_source",
        SuppressionReason::UnsupportedDialog => "unsupported_dialog",
        SuppressionReason::AmbientPublicChat => "ambient_public_chat",
        SuppressionReason::SenderQueueFull => "sender_queue_full",
        SuppressionReason::SenderLimit => "sender_limit",
        SuppressionReason::Disconnected => "disconnected",
        SuppressionReason::UnsafeResponse => "unsafe_response",
        SuppressionReason::Cancelled => "cancelled",
    }
}

#[cfg(feature = "live-grid")]
const fn interaction_origin_code(origin: metacrate_grid_agent::InteractionOrigin) -> &'static str {
    use metacrate_grid_agent::InteractionOrigin;
    match origin {
        InteractionOrigin::Public => "public",
        InteractionOrigin::UnprivilegedIm => "unprivileged_im",
        InteractionOrigin::AuthorizedIm => "authorized_im",
    }
}

#[cfg(feature = "live-grid")]
const fn interaction_intent_code(intent: metacrate_grid_agent::InteractionIntent) -> &'static str {
    use metacrate_grid_agent::InteractionIntent;
    match intent {
        InteractionIntent::Informational => "informational",
        InteractionIntent::PublicCommandDenied => "public_command_denied",
        InteractionIntent::PolicyGatedCommand => "policy_gated_command",
        InteractionIntent::PolicyGatedLslRequest => "policy_gated_lsl_request",
    }
}

#[cfg(feature = "live-grid")]
const fn delivery_outcome_code(outcome: metacrate_grid_agent::DeliveryOutcome) -> &'static str {
    use metacrate_grid_agent::DeliveryOutcome;
    match outcome {
        DeliveryOutcome::Succeeded => "succeeded",
        DeliveryOutcome::Failed => "failed",
        DeliveryOutcome::TimedOut => "timed_out",
        DeliveryOutcome::PolicyDenied => "policy_denied",
    }
}

#[cfg(feature = "live-grid")]
const fn interaction_channel_code(
    channel: metacrate_grid_agent::InteractionChannel,
) -> &'static str {
    use metacrate_grid_agent::InteractionChannel;
    match channel {
        InteractionChannel::PublicChat => "public_chat",
        InteractionChannel::DirectIm => "direct_im",
    }
}

#[cfg(feature = "live-grid")]
const fn behavior_mode_code(mode: metacrate_grid_agent::BehaviorMode) -> &'static str {
    use metacrate_grid_agent::BehaviorMode;
    match mode {
        BehaviorMode::Offline => "offline",
        BehaviorMode::Settling => "settling",
        BehaviorMode::Available => "available",
        BehaviorMode::Engaged => "engaged",
        BehaviorMode::Executing => "executing",
        BehaviorMode::Roaming => "roaming",
        BehaviorMode::Paused => "paused",
        BehaviorMode::Recovering => "recovering",
    }
}

#[cfg(feature = "live-grid")]
const fn behavior_outcome_code(outcome: metacrate_grid_agent::BehaviorOutcome) -> &'static str {
    use metacrate_grid_agent::BehaviorOutcome;
    match outcome {
        BehaviorOutcome::Completed => "completed",
        BehaviorOutcome::Cancelled => "cancelled",
        BehaviorOutcome::TimedOut => "timed_out",
        BehaviorOutcome::Stuck => "stuck",
        BehaviorOutcome::Rejected => "rejected",
        BehaviorOutcome::Preempted => "preempted",
    }
}