//! L6 tests for the agent lifecycle use cases (`CreateAgentFromScratch`,
//! `ListAgents`, `ReadAgentContext`, `UpdateAgentContext`, `DeleteAgent`,
//! `LaunchAgent`).
//!
//! Every port is faked in-memory so the use cases run without real I/O:
//! - [`FakeContexts`] — an [`AgentContextStore`] holding the manifest + a
//!   `md_path → content` map,
//! - [`FakeProfiles`] — a [`ProfileStore`] returning a fixed profile list,
//! - [`FakeRuntime`] — an [`AgentRuntime`] whose `prepare_invocation` records the
//!   call into a shared **trace** and returns a configurable injection plan,
//! - [`FakeFs`] — a [`FileSystem`] recording writes into the same trace,
//! - [`FakePty`] — a [`PtyPort`] recording `spawn` into the trace,
//! - [`SpyBus`], [`SeqIds`] — event recorder and deterministic id generator.
//!
//! The shared trace lets us assert the **call ordering** contract of
//! `LaunchAgent`: `prepare_invocation` → injection (fs write) → `pty.spawn`.

use std::collections::HashMap;
use std::sync::{Arc, Mutex};

use async_trait::async_trait;
use domain::agent::{Agent, AgentManifest, AgentOrigin, ManifestEntry};
use domain::events::DomainEvent;
use domain::ids::{AgentId, ProfileId, ProjectId};
use domain::markdown::MarkdownDoc;
use domain::ports::{
    AgentContextStore, AgentRuntime, ContextInjectionPlan, DirEntry, EventBus, EventStream,
    ExitStatus, FileSystem, FsError, IdGenerator, OutputStream, PreparedContext, ProfileStore,
    PtyError, PtyHandle, PtyPort, RemotePath, RuntimeError, SpawnSpec, StoreError,
};
use domain::profile::{AgentProfile, ContextInjection};
use domain::project::{Project, ProjectPath};
use domain::remote::RemoteRef;
use domain::{PtySize, SessionId};
use uuid::Uuid;

use application::{
    CreateAgentFromScratch, CreateAgentInput, DeleteAgent, DeleteAgentInput, LaunchAgent,
    LaunchAgentInput, ListAgents, ListAgentsInput, ReadAgentContext, ReadAgentContextInput,
    TerminalSessions, UpdateAgentContext, UpdateAgentContextInput,
};

// ---------------------------------------------------------------------------
// Shared trace (ordering)
// ---------------------------------------------------------------------------

type Trace = Arc<Mutex<Vec<String>>>;

/// A recorded list of `(target, bytes)` writes, keyed by whatever addresses the
/// target (a path for the fs, a [`SessionId`] for the pty).
type WriteLog<K> = Arc<Mutex<Vec<(K, Vec<u8>)>>>;

fn trace() -> Trace {
    Arc::new(Mutex::new(Vec::new()))
}

// ---------------------------------------------------------------------------
// FakeContexts (AgentContextStore)
// ---------------------------------------------------------------------------

#[derive(Default)]
struct ContextsInner {
    manifest: AgentManifest,
    contents: HashMap<String, String>,
}

#[derive(Clone)]
struct FakeContexts(Arc<Mutex<ContextsInner>>);

impl FakeContexts {
    fn new() -> Self {
        Self(Arc::new(Mutex::new(ContextsInner {
            manifest: AgentManifest {
                version: 1,
                entries: Vec::new(),
            },
            contents: HashMap::new(),
        })))
    }
    fn with_agent(agent: &Agent, content: &str) -> Self {
        let me = Self::new();
        {
            let mut inner = me.0.lock().unwrap();
            inner.manifest.entries.push(ManifestEntry::from_agent(agent));
            inner
                .contents
                .insert(agent.context_path.clone(), content.to_owned());
        }
        me
    }
    fn manifest(&self) -> AgentManifest {
        self.0.lock().unwrap().manifest.clone()
    }
    fn content(&self, md_path: &str) -> Option<String> {
        self.0.lock().unwrap().contents.get(md_path).cloned()
    }
    fn md_path_of(&self, agent: &AgentId) -> Option<String> {
        self.0
            .lock()
            .unwrap()
            .manifest
            .entries
            .iter()
            .find(|e| &e.agent_id == agent)
            .map(|e| e.md_path.clone())
    }
}

#[async_trait]
impl AgentContextStore for FakeContexts {
    async fn read_context(
        &self,
        _project: &Project,
        agent: &AgentId,
    ) -> Result<MarkdownDoc, StoreError> {
        let md_path = self.md_path_of(agent).ok_or(StoreError::NotFound)?;
        self.content(&md_path)
            .map(MarkdownDoc::new)
            .ok_or(StoreError::NotFound)
    }
    async fn write_context(
        &self,
        _project: &Project,
        agent: &AgentId,
        md: &MarkdownDoc,
    ) -> Result<(), StoreError> {
        let md_path = self.md_path_of(agent).ok_or(StoreError::NotFound)?;
        self.0
            .lock()
            .unwrap()
            .contents
            .insert(md_path, md.as_str().to_owned());
        Ok(())
    }
    async fn load_manifest(&self, _project: &Project) -> Result<AgentManifest, StoreError> {
        Ok(self.manifest())
    }
    async fn save_manifest(
        &self,
        _project: &Project,
        manifest: &AgentManifest,
    ) -> Result<(), StoreError> {
        self.0.lock().unwrap().manifest = manifest.clone();
        Ok(())
    }
}

// ---------------------------------------------------------------------------
// FakeProfiles (ProfileStore)
// ---------------------------------------------------------------------------

#[derive(Clone)]
struct FakeProfiles(Arc<Vec<AgentProfile>>);

impl FakeProfiles {
    fn new(profiles: Vec<AgentProfile>) -> Self {
        Self(Arc::new(profiles))
    }
}

#[async_trait]
impl ProfileStore for FakeProfiles {
    async fn list(&self) -> Result<Vec<AgentProfile>, StoreError> {
        Ok((*self.0).clone())
    }
    async fn save(&self, _profile: &AgentProfile) -> Result<(), StoreError> {
        Ok(())
    }
    async fn delete(&self, _id: ProfileId) -> Result<(), StoreError> {
        Ok(())
    }
    async fn is_configured(&self) -> Result<bool, StoreError> {
        Ok(true)
    }
    async fn mark_configured(&self) -> Result<(), StoreError> {
        Ok(())
    }
}

// ---------------------------------------------------------------------------
// FakeRuntime (AgentRuntime) — records prepare + returns a configured plan
// ---------------------------------------------------------------------------

struct FakeRuntime {
    trace: Trace,
    plan: Option<ContextInjectionPlan>,
}

impl FakeRuntime {
    fn new(trace: Trace, plan: Option<ContextInjectionPlan>) -> Self {
        Self { trace, plan }
    }
}

impl AgentRuntime for FakeRuntime {
    fn detect(&self, _profile: &AgentProfile) -> Result<bool, RuntimeError> {
        Ok(true)
    }
    fn prepare_invocation(
        &self,
        profile: &AgentProfile,
        _ctx: &PreparedContext,
        cwd: &ProjectPath,
    ) -> Result<SpawnSpec, RuntimeError> {
        self.trace.lock().unwrap().push("prepare".to_owned());
        Ok(SpawnSpec {
            command: profile.command.clone(),
            args: profile.args.clone(),
            cwd: cwd.clone(),
            env: Vec::new(),
            context_plan: self.plan.clone(),
        })
    }
}

// ---------------------------------------------------------------------------
// FakeFs (FileSystem) — records writes into the trace
// ---------------------------------------------------------------------------

#[derive(Clone)]
struct FakeFs {
    trace: Trace,
    writes: WriteLog<String>,
    created_dirs: Arc<Mutex<Vec<String>>>,
}

impl FakeFs {
    fn new(trace: Trace) -> Self {
        Self {
            trace,
            writes: Arc::new(Mutex::new(Vec::new())),
            created_dirs: Arc::new(Mutex::new(Vec::new())),
        }
    }
    fn writes(&self) -> Vec<(String, Vec<u8>)> {
        self.writes.lock().unwrap().clone()
    }
    fn created_dirs(&self) -> Vec<String> {
        self.created_dirs.lock().unwrap().clone()
    }
}

#[async_trait]
impl FileSystem for FakeFs {
    async fn read(&self, path: &RemotePath) -> Result<Vec<u8>, FsError> {
        Err(FsError::NotFound(path.as_str().to_owned()))
    }
    async fn write(&self, path: &RemotePath, data: &[u8]) -> Result<(), FsError> {
        self.trace.lock().unwrap().push("fs.write".to_owned());
        self.writes
            .lock()
            .unwrap()
            .push((path.as_str().to_owned(), data.to_vec()));
        Ok(())
    }
    async fn exists(&self, _path: &RemotePath) -> Result<bool, FsError> {
        Ok(false)
    }
    async fn create_dir_all(&self, path: &RemotePath) -> Result<(), FsError> {
        self.created_dirs
            .lock()
            .unwrap()
            .push(path.as_str().to_owned());
        Ok(())
    }
    async fn list(&self, _path: &RemotePath) -> Result<Vec<DirEntry>, FsError> {
        Ok(Vec::new())
    }
    async fn symlink(&self, _src: &RemotePath, _dst: &RemotePath) -> Result<(), FsError> {
        Ok(())
    }
}

// ---------------------------------------------------------------------------
// FakePty (PtyPort) — records spawn into the trace
// ---------------------------------------------------------------------------

#[derive(Clone)]
struct FakePty {
    trace: Trace,
    next_id: SessionId,
    spawns: Arc<Mutex<Vec<SpawnSpec>>>,
    writes: WriteLog<SessionId>,
}

impl FakePty {
    fn new(trace: Trace, next_id: SessionId) -> Self {
        Self {
            trace,
            next_id,
            spawns: Arc::new(Mutex::new(Vec::new())),
            writes: Arc::new(Mutex::new(Vec::new())),
        }
    }
    fn spawns(&self) -> Vec<SpawnSpec> {
        self.spawns.lock().unwrap().clone()
    }
    fn writes(&self) -> Vec<(SessionId, Vec<u8>)> {
        self.writes.lock().unwrap().clone()
    }
}

#[async_trait]
impl PtyPort for FakePty {
    async fn spawn(&self, spec: SpawnSpec, _size: PtySize) -> Result<PtyHandle, PtyError> {
        self.trace.lock().unwrap().push("spawn".to_owned());
        self.spawns.lock().unwrap().push(spec);
        Ok(PtyHandle {
            session_id: self.next_id,
        })
    }
    fn write(&self, handle: &PtyHandle, data: &[u8]) -> Result<(), PtyError> {
        self.writes
            .lock()
            .unwrap()
            .push((handle.session_id, data.to_vec()));
        Ok(())
    }
    fn resize(&self, _handle: &PtyHandle, _size: PtySize) -> Result<(), PtyError> {
        Ok(())
    }
    fn subscribe_output(&self, _handle: &PtyHandle) -> Result<OutputStream, PtyError> {
        Ok(Box::new(std::iter::empty()))
    }
    fn scrollback(&self, _handle: &PtyHandle) -> Result<Vec<u8>, PtyError> {
        Ok(Vec::new())
    }
    async fn kill(&self, _handle: &PtyHandle) -> Result<ExitStatus, PtyError> {
        Ok(ExitStatus { code: Some(0) })
    }
}

// ---------------------------------------------------------------------------
// SpyBus + SeqIds
// ---------------------------------------------------------------------------

#[derive(Default, Clone)]
struct SpyBus(Arc<Mutex<Vec<DomainEvent>>>);
impl SpyBus {
    fn events(&self) -> Vec<DomainEvent> {
        self.0.lock().unwrap().clone()
    }
}
impl EventBus for SpyBus {
    fn publish(&self, event: DomainEvent) {
        self.0.lock().unwrap().push(event);
    }
    fn subscribe(&self) -> EventStream {
        Box::new(std::iter::empty())
    }
}

struct SeqIds(Mutex<u128>);
impl SeqIds {
    fn new() -> Self {
        Self(Mutex::new(1))
    }
}
impl IdGenerator for SeqIds {
    fn new_uuid(&self) -> Uuid {
        let mut n = self.0.lock().unwrap();
        let id = Uuid::from_u128(*n);
        *n += 1;
        id
    }
}

// ---------------------------------------------------------------------------
// Builders
// ---------------------------------------------------------------------------

fn pid(n: u128) -> ProfileId {
    ProfileId::from_uuid(Uuid::from_u128(n))
}
fn aid(n: u128) -> AgentId {
    AgentId::from_uuid(Uuid::from_u128(n))
}
fn sid(n: u128) -> SessionId {
    SessionId::from_uuid(Uuid::from_u128(n))
}

fn project() -> Project {
    Project::new(
        ProjectId::from_uuid(Uuid::from_u128(1000)),
        "demo",
        ProjectPath::new("/home/me/proj").unwrap(),
        RemoteRef::local(),
        1_700_000_000_000,
    )
    .unwrap()
}

fn profile(id: ProfileId, injection: ContextInjection) -> AgentProfile {
    AgentProfile::new(
        id,
        "Claude Code",
        "claude",
        Vec::new(),
        injection,
        Some("claude --version".to_owned()),
        "{agentRunDir}",
    )
    .unwrap()
}

fn scratch_agent(id: AgentId, name: &str, md: &str, profile_id: ProfileId) -> Agent {
    Agent::new(id, name, md, profile_id, AgentOrigin::Scratch, false).unwrap()
}

// ---------------------------------------------------------------------------
// CreateAgentFromScratch
// ---------------------------------------------------------------------------

#[tokio::test]
async fn create_persists_manifest_entry_and_initial_context() {
    let contexts = FakeContexts::new();
    let bus = SpyBus::default();
    let create = CreateAgentFromScratch::new(
        Arc::new(contexts.clone()),
        Arc::new(SeqIds::new()),
        Arc::new(bus.clone()),
    );

    let out = create
        .execute(CreateAgentInput {
            project: project(),
            name: "Backend Dev".to_owned(),
            profile_id: pid(9),
            initial_content: Some("# Backend".to_owned()),
        })
        .await
        .expect("create succeeds");

    // md_path is slugified from the name.
    assert_eq!(out.agent.context_path, "agents/backend-dev.md");
    assert_eq!(out.agent.profile_id, pid(9));
    assert!(matches!(out.agent.origin, AgentOrigin::Scratch));
    assert!(!out.agent.synchronized);

    // Manifest has exactly one entry for this agent; context stored under md_path.
    let manifest = contexts.manifest();
    assert_eq!(manifest.entries.len(), 1);
    assert_eq!(manifest.entries[0].agent_id, out.agent.id);
    assert_eq!(
        contexts.content("agents/backend-dev.md").as_deref(),
        Some("# Backend")
    );
}

#[tokio::test]
async fn create_disambiguates_md_path_on_name_collision() {
    // Seed a project that already has `agents/backend.md`.
    let existing = scratch_agent(aid(50), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&existing, "old");
    let create = CreateAgentFromScratch::new(
        Arc::new(contexts.clone()),
        Arc::new(SeqIds::new()),
        Arc::new(SpyBus::default()),
    );

    let out = create
        .execute(CreateAgentInput {
            project: project(),
            name: "Backend".to_owned(),
            profile_id: pid(9),
            initial_content: None,
        })
        .await
        .unwrap();

    assert_eq!(out.agent.context_path, "agents/backend-2.md");
    assert_eq!(contexts.manifest().entries.len(), 2);
}

// ---------------------------------------------------------------------------
// ListAgents / Read / Update / Delete
// ---------------------------------------------------------------------------

#[tokio::test]
async fn list_reconstructs_agents_from_manifest() {
    let a = scratch_agent(aid(1), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&a, "ctx");
    let list = ListAgents::new(Arc::new(contexts));

    let out = list
        .execute(ListAgentsInput { project: project() })
        .await
        .unwrap();
    assert_eq!(out.agents, vec![a]);
}

#[tokio::test]
async fn read_then_update_context_roundtrips() {
    let a = scratch_agent(aid(1), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&a, "original");
    let read = ReadAgentContext::new(Arc::new(contexts.clone()));
    let update = UpdateAgentContext::new(Arc::new(contexts.clone()));

    let before = read
        .execute(ReadAgentContextInput {
            project: project(),
            agent_id: a.id,
        })
        .await
        .unwrap();
    assert_eq!(before.content.as_str(), "original");

    update
        .execute(UpdateAgentContextInput {
            project: project(),
            agent_id: a.id,
            content: "edited".to_owned(),
        })
        .await
        .unwrap();

    assert_eq!(contexts.content("agents/backend.md").as_deref(), Some("edited"));
}

#[tokio::test]
async fn delete_removes_entry_then_unknown_is_not_found() {
    let a = scratch_agent(aid(1), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&a, "ctx");
    let delete = DeleteAgent::new(Arc::new(contexts.clone()), Arc::new(SpyBus::default()));

    delete
        .execute(DeleteAgentInput {
            project: project(),
            agent_id: a.id,
        })
        .await
        .unwrap();
    assert!(contexts.manifest().entries.is_empty());

    // Second delete: the agent is gone → NotFound.
    let err = delete
        .execute(DeleteAgentInput {
            project: project(),
            agent_id: a.id,
        })
        .await
        .unwrap_err();
    assert_eq!(err.code(), "NOT_FOUND", "got {err:?}");
}

// ---------------------------------------------------------------------------
// LaunchAgent
// ---------------------------------------------------------------------------

/// Everything a launch test needs to drive `LaunchAgent` and assert over the
/// fakes: the use case, the seeded agent, the recording fs/pty, the event spy,
/// the session registry and the shared ordering trace.
type LaunchFixture = (
    LaunchAgent,
    Agent,
    FakeFs,
    FakePty,
    SpyBus,
    Arc<TerminalSessions>,
    Trace,
);

/// Wires a LaunchAgent over fakes for a given injection strategy/plan.
fn launch_fixture(injection: ContextInjection, plan: Option<ContextInjectionPlan>) -> LaunchFixture {
    let agent = scratch_agent(aid(1), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&agent, "# ctx body");
    let profiles = FakeProfiles::new(vec![profile(pid(9), injection)]);
    let tr = trace();
    let runtime = FakeRuntime::new(Arc::clone(&tr), plan);
    let fs = FakeFs::new(Arc::clone(&tr));
    let pty = FakePty::new(Arc::clone(&tr), sid(777));
    let sessions = Arc::new(TerminalSessions::new());
    let bus = SpyBus::default();
    let launch = LaunchAgent::new(
        Arc::new(contexts),
        Arc::new(profiles),
        Arc::new(runtime),
        Arc::new(fs.clone()),
        Arc::new(pty.clone()),
        Arc::clone(&sessions),
        Arc::new(bus.clone()),
    );
    (launch, agent, fs, pty, bus, sessions, tr)
}

fn launch_input(agent_id: AgentId) -> LaunchAgentInput {
    LaunchAgentInput {
        project: project(),
        agent_id,
        rows: 24,
        cols: 80,
        node_id: None,
    }
}

#[tokio::test]
async fn launch_orders_prepare_then_injection_then_spawn() {
    // conventionFile strategy → an fs.write must happen between prepare and spawn.
    let (launch, agent, fs, pty, bus, sessions, tr) = launch_fixture(
        ContextInjection::convention_file("CLAUDE.md").unwrap(),
        Some(ContextInjectionPlan::File {
            target: "CLAUDE.md".to_owned(),
        }),
    );

    let out = launch.execute(launch_input(agent.id)).await.expect("launch");

    // Ordering contract.
    assert_eq!(
        *tr.lock().unwrap(),
        vec!["prepare".to_owned(), "fs.write".to_owned(), "spawn".to_owned()],
        "prepare → injection → spawn"
    );

    // The conventionFile was written inside the agent's isolated run directory
    // (`.ideai/run/<agent-id>/CLAUDE.md`) — NOT at the project root. Its content
    // is the *composed* document: an absolute project-root header followed by the
    // agent persona `.md`.
    let run_dir = format!("/home/me/proj/.ideai/run/{}", agent.id);
    let writes = fs.writes();
    assert_eq!(writes.len(), 1);
    assert_eq!(writes[0].0, format!("{run_dir}/CLAUDE.md"));
    let written = String::from_utf8(writes[0].1.clone()).unwrap();
    assert!(
        written.contains("/home/me/proj"),
        "convention file must carry the absolute project root, got: {written}"
    );
    assert!(
        written.contains("# ctx body"),
        "convention file must carry the agent persona, got: {written}"
    );

    // The run directory was created (via the FileSystem port) before spawn.
    assert_eq!(fs.created_dirs(), vec![run_dir.clone()]);

    // Spawn happened at the isolated run dir with the profile command.
    let spawns = pty.spawns();
    assert_eq!(spawns.len(), 1);
    assert_eq!(spawns[0].command, "claude");
    assert_eq!(spawns[0].cwd.as_str(), run_dir);

    // The session adopts the PTY id, is Running, and is registered as an agent.
    assert_eq!(out.session.id, sid(777));
    assert!(matches!(
        out.session.kind,
        domain::SessionKind::Agent { agent_id } if agent_id == agent.id
    ));
    assert!(sessions.session(&sid(777)).is_some());

    // AgentLaunched announced.
    assert_eq!(
        bus.events(),
        vec![DomainEvent::AgentLaunched {
            agent_id: agent.id,
            session_id: sid(777),
        }]
    );
}

/// **Anti-collision (ARCHITECTURE §14.1)**: two distinct agents of the *same*
/// profile on the *same* project root must launch into two **distinct** cwd —
/// each its own `.ideai/run/<agent-id>/` — and each writes its convention file
/// inside its own run dir, never colliding at the project root.
#[tokio::test]
async fn two_agents_same_root_get_distinct_run_dirs_no_collision() {
    let injection = ContextInjection::convention_file("CLAUDE.md").unwrap();
    let plan = Some(ContextInjectionPlan::File {
        target: "CLAUDE.md".to_owned(),
    });

    // Two agents, same profile (pid(9)), same project root.
    let agent_a = scratch_agent(aid(1), "Alpha", "agents/alpha.md", pid(9));
    let agent_b = scratch_agent(aid(2), "Bravo", "agents/bravo.md", pid(9));

    let contexts = FakeContexts::with_agent(&agent_a, "# alpha");
    {
        let mut inner = contexts.0.lock().unwrap();
        inner
            .manifest
            .entries
            .push(ManifestEntry::from_agent(&agent_b));
        inner
            .contents
            .insert(agent_b.context_path.clone(), "# bravo".to_owned());
    }
    let profiles = FakeProfiles::new(vec![profile(pid(9), injection)]);

    let tr = trace();
    let fs = FakeFs::new(Arc::clone(&tr));
    let pty = FakePty::new(Arc::clone(&tr), sid(777));
    let sessions = Arc::new(TerminalSessions::new());
    let launch = LaunchAgent::new(
        Arc::new(contexts),
        Arc::new(profiles),
        Arc::new(FakeRuntime::new(Arc::clone(&tr), plan)),
        Arc::new(fs.clone()),
        Arc::new(pty.clone()),
        Arc::clone(&sessions),
        Arc::new(SpyBus::default()),
    );

    launch.execute(launch_input(agent_a.id)).await.unwrap();
    launch.execute(launch_input(agent_b.id)).await.unwrap();

    let dir_a = format!("/home/me/proj/.ideai/run/{}", agent_a.id);
    let dir_b = format!("/home/me/proj/.ideai/run/{}", agent_b.id);
    assert_ne!(dir_a, dir_b, "the two agents must map to different run dirs");

    // Two distinct run dirs were created.
    assert_eq!(fs.created_dirs(), vec![dir_a.clone(), dir_b.clone()]);

    // Two spawns at two distinct cwd — the core anti-collision guarantee.
    let spawns = pty.spawns();
    assert_eq!(spawns.len(), 2);
    assert_eq!(spawns[0].cwd.as_str(), dir_a);
    assert_eq!(spawns[1].cwd.as_str(), dir_b);
    assert_ne!(spawns[0].cwd, spawns[1].cwd);

    // Two convention files, each inside its own run dir (no shared root file).
    let writes = fs.writes();
    assert_eq!(writes.len(), 2);
    assert_eq!(writes[0].0, format!("{dir_a}/CLAUDE.md"));
    assert_eq!(writes[1].0, format!("{dir_b}/CLAUDE.md"));
    assert_ne!(writes[0].0, writes[1].0);
    // Neither writes to the project root.
    assert!(writes.iter().all(|(p, _)| p != "/home/me/proj/CLAUDE.md"));

    // Each convention file carries its own persona.
    assert!(String::from_utf8(writes[0].1.clone()).unwrap().contains("# alpha"));
    assert!(String::from_utf8(writes[1].1.clone()).unwrap().contains("# bravo"));
}

#[tokio::test]
async fn launch_stdin_strategy_pipes_context_after_spawn() {
    let (launch, agent, fs, pty, _bus, _sessions, tr) =
        launch_fixture(ContextInjection::stdin(), Some(ContextInjectionPlan::Stdin));

    launch.execute(launch_input(agent.id)).await.unwrap();

    // No file written for stdin; content is piped to the PTY post-spawn.
    assert!(fs.writes().is_empty(), "stdin must not write a file");
    assert_eq!(*tr.lock().unwrap(), vec!["prepare".to_owned(), "spawn".to_owned()]);
    let writes = pty.writes();
    assert_eq!(writes.len(), 1);
    assert_eq!(writes[0].0, sid(777));
    assert_eq!(writes[0].1, b"# ctx body");
}

#[tokio::test]
async fn launch_unknown_agent_is_not_found() {
    let (launch, _agent, _fs, pty, _bus, _sessions, _tr) = launch_fixture(
        ContextInjection::stdin(),
        Some(ContextInjectionPlan::Stdin),
    );
    let err = launch.execute(launch_input(aid(404))).await.unwrap_err();
    assert_eq!(err.code(), "NOT_FOUND", "got {err:?}");
    assert!(pty.spawns().is_empty(), "no spawn for unknown agent");
}

#[tokio::test]
async fn launch_unknown_profile_is_not_found() {
    // The agent references pid(9) but the store only knows pid(1).
    let agent = scratch_agent(aid(1), "Backend", "agents/backend.md", pid(9));
    let contexts = FakeContexts::with_agent(&agent, "ctx");
    let profiles = FakeProfiles::new(vec![profile(pid(1), ContextInjection::stdin())]);
    let tr = trace();
    let pty = FakePty::new(Arc::clone(&tr), sid(777));
    let launch = LaunchAgent::new(
        Arc::new(contexts),
        Arc::new(profiles),
        Arc::new(FakeRuntime::new(Arc::clone(&tr), Some(ContextInjectionPlan::Stdin))),
        Arc::new(FakeFs::new(Arc::clone(&tr))),
        Arc::new(pty.clone()),
        Arc::new(TerminalSessions::new()),
        Arc::new(SpyBus::default()),
    );

    let err = launch.execute(launch_input(agent.id)).await.unwrap_err();
    assert_eq!(err.code(), "NOT_FOUND", "got {err:?}");
    assert!(pty.spawns().is_empty(), "no spawn when profile unresolved");
}