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chore(wip): checkpoint P8/C avant chantier Codex inter-agents

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Sauvegarde de l'arbre de travail en cours (persistance P8, conversations
C-series, write-portal frontend, médiation d'entrée) avant d'attaquer le
support de la délégation inter-agents pour les profils Codex.

Le round-trip inter-agent question/réponse est couvert sans tokens par
les tests loopback existants (state::mcp_e2e_loopback_tests).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Blomios
2026-06-13 21:42:53 +02:00
parent 4509f0db9d
commit fdcf16c387
76 changed files with 3783 additions and 1404 deletions
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101
frontend/src/features/layout/LayoutGrid.f2.test.tsx
View File

@ -1,22 +1,20 @@
/**
* F2 — mediated input for agent cells (cadrage §4.2/§7).
* Agent cell = NATIVE terminal (ARCHITECTURE §20) — supersedes the F2 mediated
* input contract.
*
* Two contracts are exercised here, with the real {@link DIProvider} and the
* in-memory mocks:
* The agent cell no longer mediates keystrokes through a separate strip. It is a
* real terminal:
*
* 1. **Keystrokes are mediated in agent mode.** A cell that pins an agent puts
* `TerminalView` in `agentMode`: human keystrokes (`term.onData`) MUST NOT be
* written to the PTY (input flows through {@link MediatedInput}). A plain
* (agent-less) cell keeps the raw-shell behaviour (keystrokes → PTY).
* 2. **The PTY *output* is always painted** (both modes) — xterm stays the raw
* output view, unchanged by F2.
* 3. **`MediatedInput` is mounted under the terminal** for an agent cell, and
* **never** an `AgentChatView` (the structured chat surface stays removed).
* 1. **Keystrokes reach the PTY in BOTH modes.** An agent cell and a plain cell
* alike forward `term.onData` keystrokes straight to `handle.write`.
* 2. **The PTY *output* is always painted** — xterm stays the raw output view.
* 3. **No `MediatedInput` strip and no `AgentChatView`** are ever mounted; the
* agent cell renders only the raw {@link TerminalView}.
*
* xterm is stubbed (as in the sibling chat test) so `term.open` succeeds under
* jsdom and the opener/keystroke wiring genuinely runs. The stub captures the
* `onData` keystroke handler so the test can fire a keystroke and assert whether
* it reached the PTY handle (`handle.write`).
* `onData` keystroke handler so the test can fire a keystroke and assert it
* reached the PTY handle (`handle.write`).
*/
import { beforeEach, describe, it, expect, vi } from "vitest";
import { render, screen, waitFor } from "@testing-library/react";
@ -79,7 +77,7 @@ import { DIProvider } from "@/app/di";
import { leaves } from "./layout";
import { LayoutGrid } from "./LayoutGrid";
/** Fresh mock set (input gateway included so MediatedInput is fully wired). */
/** Fresh mock set (input gateway included so the write-portal is fully wired). */
function makeGateways(agentGateway: MockAgentGateway): Gateways {
return {
layout: new MockLayoutGateway(),
@ -123,42 +121,43 @@ function spyTerminalWrite(gw: MockTerminalGateway): ReturnType<typeof vi.fn> {
return writeSpy;
}
async function pinAgent(gateways: Gateways, agentId: string): Promise<void> {
const layout = gateways.layout as MockLayoutGateway;
const leafId = leaves(await layout.loadLayout("p1"))[0].id;
await layout.mutateLayout("p1", {
type: "setCellAgent",
target: leafId,
agent: agentId,
});
}
beforeEach(() => {
xtermState.keyHandler = null;
xtermState.writes = [];
});
describe("LayoutGrid F2 — mediated input for agent cells", () => {
it("an AGENT cell does NOT write keystrokes to the PTY (input is mediated)", async () => {
describe("LayoutGrid — agent cell is a native terminal (§20)", () => {
it("an AGENT cell DOES write keystrokes to the PTY (native terminal)", async () => {
const agentGateway = new MockAgentGateway();
const agent = await agentGateway.createAgent("p1", {
name: "Worker",
profileId: "claude",
});
const gateways = makeGateways(agentGateway);
// Pin the agent onto the leaf in this run's layout gateway.
const layout = gateways.layout as MockLayoutGateway;
const leafId = leaves(await layout.loadLayout("p1"))[0].id;
await layout.mutateLayout("p1", {
type: "setCellAgent",
target: leafId,
agent: agent.id,
});
await pinAgent(gateways, agent.id);
const writeSpy = spyAgentWrite(agentGateway);
renderGrid(gateways);
// Wait for the launch to settle (the opener ran and adopted a handle).
await waitFor(() => expect(agentGateway.launchAgent).toHaveBeenCalled());
await waitFor(() => expect(xtermState.keyHandler).not.toBeNull());
// Simulate a human keystroke into xterm.
// Simulate human keystrokes into xterm; in native mode they reach the PTY.
xtermState.keyHandler!("h");
xtermState.keyHandler!("i");
// In agent mode the keystroke must be swallowed — never forwarded to the PTY.
expect(writeSpy).not.toHaveBeenCalled();
await waitFor(() => expect(writeSpy).toHaveBeenCalled());
});
it("a PLAIN cell still writes keystrokes to the PTY (raw shell, unchanged)", async () => {
@ -176,64 +175,48 @@ describe("LayoutGrid F2 — mediated input for agent cells", () => {
xtermState.keyHandler!("l");
xtermState.keyHandler!("s");
// Plain shell: keystrokes flow straight to the PTY (current behaviour).
await waitFor(() => expect(writeSpy).toHaveBeenCalled());
});
it("paints PTY output in BOTH modes (xterm output view unchanged)", async () => {
// Agent cell: the mock greets on open → output must reach term.write.
const agentGateway = new MockAgentGateway();
const agent = await agentGateway.createAgent("p1", {
name: "Worker",
profileId: "claude",
});
const gateways = makeGateways(agentGateway);
const layout = gateways.layout as MockLayoutGateway;
const leafId = leaves(await layout.loadLayout("p1"))[0].id;
await layout.mutateLayout("p1", {
type: "setCellAgent",
target: leafId,
agent: agent.id,
});
await pinAgent(gateways, agent.id);
renderGrid(gateways);
// The mock agent greets on open; that output must be painted by xterm even
// though keystroke input is mediated.
await waitFor(() => expect(xtermState.writes.length).toBeGreaterThan(0));
});
it("mounts MediatedInput under an agent cell, never an AgentChatView", async () => {
it("renders only the raw TerminalView — no MediatedInput, no AgentChatView", async () => {
const agentGateway = new MockAgentGateway();
const agent = await agentGateway.createAgent("p1", {
name: "Worker",
profileId: "claude",
});
const gateways = makeGateways(agentGateway);
const layout = gateways.layout as MockLayoutGateway;
const leafId = leaves(await layout.loadLayout("p1"))[0].id;
await layout.mutateLayout("p1", {
type: "setCellAgent",
target: leafId,
agent: agent.id,
});
renderGrid(gateways);
await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
expect(screen.getByTestId("terminal-view")).toBeTruthy();
expect(screen.getByTestId("mediated-input")).toBeTruthy();
expect(screen.queryByTestId("agent-chat-view")).toBeNull();
});
it("a PLAIN cell has NO mediated input strip", async () => {
const agentGateway = new MockAgentGateway();
const gateways = makeGateways(agentGateway);
await pinAgent(gateways, agent.id);
renderGrid(gateways);
await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
expect(screen.getByTestId("terminal-view")).toBeTruthy();
expect(screen.queryByTestId("mediated-input")).toBeNull();
expect(screen.queryByTestId("agent-chat-view")).toBeNull();
});
it("a PLAIN cell has no portal overlay", async () => {
const agentGateway = new MockAgentGateway();
const gateways = makeGateways(agentGateway);
renderGrid(gateways);
await waitFor(() => expect(screen.getByTestId("layout-leaf")).toBeTruthy());
expect(screen.getByTestId("terminal-view")).toBeTruthy();
expect(screen.queryByTestId("write-portal-overlay")).toBeNull();
});
});

95
frontend/src/features/layout/LayoutGrid.tsx
View File

@ -27,10 +27,9 @@ import type {
TerminalHandle,
} from "@/ports";
import {
MediatedInput,
ResumeConversationPopup,
TerminalView,
useAgentBusy,
useWritePortal,
} from "@/features/terminals";
import { useGateways } from "@/app/di";
import { leaves, normalizeWeights, resizeAdjacent } from "./layout";
@ -203,10 +202,12 @@ function LeafView({ id, session, agent, conversationId, agentWasRunning, cwd, vm
const siblingIndex = parentSplit ? (parentSplit.index === 0 ? 1 : 0) : 0;
const { agent: agentGateway, system } = useGateways();
// Per-agent busy map (lot F1) feeds the mediated input strip: while the agent
// is processing a turn, "Envoyer" is dimmed (but the enqueue stays open) and
// "Interrompre" is active. Absent key ⇒ idle.
const busyMap = useAgentBusy();
// The single write-portal of this cell (ARCHITECTURE §20). It owns the human
// line counter, the local delegation FIFO, the handshake (b→e) and the overlay
// shown while a delegation is being injected. For a plain (agent-less) cell
// `agent` is null: the portal stays inert (no subscription, no overlay) and is
// simply not passed to the terminal.
const { portal, overlay } = useWritePortal(projectId, agent ?? null);
// Load the project's agents for the dropdown.
const [agents, setAgents] = useState<Agent[]>([]);
@ -552,44 +553,66 @@ function LeafView({ id, session, agent, conversationId, agentWasRunning, cwd, vm
)}
</div>
{/* Option 1 (Terminal + MCP): every cell — plain or agent — renders the
raw xterm {@link TerminalView}. Agent cells are interactive PTYs; their
cross-model delegation happens through MCP tools, not a chat view.
Re-key on the agent so the right opener is captured at mount; the
persisted session drives re-attach (never a re-spawn) when navigating.
Lot F2 (cadrage §4.2): in an **agent** cell the terminal is output-only
for the human (`agentMode`) and the {@link MediatedInput} strip is
mounted **under** it — keystrokes route through IdeA, not the PTY. A
**plain** cell keeps the raw-shell behaviour (keystrokes → PTY) and has
no input strip. We stack terminal + strip in a column so the strip sits
beneath the live output. */}
raw xterm {@link TerminalView}. Agent cells are **native terminals**
(ARCHITECTURE §20): every human keystroke (Enter included) reaches the
PTY. There is no mediated-input strip; cross-model delegation flows
through the write-portal (which injects at a clean line boundary) and
MCP tools. Re-key on the agent so the right opener is captured at mount;
the persisted session drives re-attach (never a re-spawn) when
navigating. The agent cell passes its {@link WritePortal} so keystroke
counting + injection suspension are wired; a plain cell passes none. */}
<div
style={{
display: "flex",
flexDirection: "column",
position: "relative",
width: "100%",
height: "100%",
minHeight: 0,
minWidth: 0,
}}
>
<div style={{ flex: "1 1 auto", minHeight: 0, minWidth: 0 }}>
<TerminalView
key={`${id}-${agentId ?? "plain"}`}
cwd={cwd}
open={terminalOpener}
reattach={reattachOpener}
sessionId={session}
onSessionId={(sid) => void vm.setSession(id, sid)}
agentMode={agentId != null}
/>
</div>
{agentId != null && (
<MediatedInput
projectId={projectId}
agentId={agentId}
busy={busyMap[agentId] ?? false}
/>
<TerminalView
key={`${id}-${agentId ?? "plain"}`}
cwd={cwd}
open={terminalOpener}
reattach={reattachOpener}
sessionId={session}
onSessionId={(sid) => void vm.setSession(id, sid)}
agentMode={agentId != null}
portal={agentId != null ? portal : undefined}
/>
{/* Write-portal overlay (ARCHITECTURE §20.3 step b/e): while a delegation
is being injected into the agent's PTY, a grey veil with a centred
message sits above the terminal. Only ever shown for an agent cell. */}
{agentId != null && overlay && (
<div
data-testid="write-portal-overlay"
role="status"
aria-live="polite"
style={{
position: "absolute",
inset: 0,
zIndex: 4,
display: "flex",
alignItems: "center",
justifyContent: "center",
background: "rgba(0, 0, 0, 0.45)",
color: "var(--color-content, #e0e0e0)",
fontSize: 13,
pointerEvents: "none",
userSelect: "none",
}}
>
<span
style={{
background: "var(--color-surface, #1e1e1e)",
border: "1px solid var(--color-border, #3a3a3a)",
borderRadius: 4,
padding: "6px 12px",
}}
>
Un agent est en train de parler…
</span>
</div>
)}
</div>
{busyNotice && (

108
frontend/src/features/terminals/MediatedInput.test.tsx
View File

@ -1,108 +0,0 @@
/**
* F1 — {@link MediatedInput} wired to {@link MockInputGateway} through the real
* {@link DIProvider}. Asserts the mediated-input contract (cadrage §4.2/§6):
*
* - "Envoyer" routes to `InputGateway.submit` with the right args;
* - "Interrompre" routes to `InputGateway.interrupt`;
* - while busy, "Envoyer" is dimmed/aria-disabled but the enqueue STILL goes
* through (forward/fallback — never block the user), and "Interrompre" stays
* active.
*
* Fully offline: gateways are mocks, no backend.
*/
import { describe, it, expect } from "vitest";
import { render, screen, waitFor, fireEvent } from "@testing-library/react";
import type { Gateways } from "@/ports";
import { MockInputGateway, MockSystemGateway } from "@/adapters/mock";
import { DIProvider } from "@/app/di";
import { MediatedInput } from "./MediatedInput";
function renderInput(
input: MockInputGateway,
props: Partial<React.ComponentProps<typeof MediatedInput>> = {},
) {
const gateways = {
input,
system: new MockSystemGateway(),
} as unknown as Gateways;
return render(
<DIProvider gateways={gateways}>
<MediatedInput projectId="p1" agentId="a1" {...props} />
</DIProvider>,
);
}
describe("MediatedInput (with MockInputGateway)", () => {
it("mounts and renders the input strip", () => {
renderInput(new MockInputGateway());
expect(screen.getByTestId("mediated-input")).toBeTruthy();
});
it("Envoyer routes to gateway.submit with project/agent/text", async () => {
const input = new MockInputGateway();
renderInput(input);
fireEvent.change(screen.getByLabelText("Message à l'agent"), {
target: { value: "hello agent" },
});
fireEvent.click(screen.getByRole("button", { name: "Envoyer" }));
await waitFor(() => {
expect(input.submits).toEqual([
{ projectId: "p1", agentId: "a1", text: "hello agent" },
]);
});
// No interrupt was triggered.
expect(input.interrupts).toEqual([]);
});
it("does not submit blank/whitespace-only text", async () => {
const input = new MockInputGateway();
renderInput(input);
fireEvent.change(screen.getByLabelText("Message à l'agent"), {
target: { value: " " },
});
fireEvent.click(screen.getByRole("button", { name: "Envoyer" }));
expect(input.submits).toEqual([]);
});
it("Interrompre routes to gateway.interrupt (not an enqueue)", async () => {
const input = new MockInputGateway();
renderInput(input);
fireEvent.click(screen.getByRole("button", { name: "Interrompre" }));
await waitFor(() => {
expect(input.interrupts).toEqual([{ projectId: "p1", agentId: "a1" }]);
});
expect(input.submits).toEqual([]);
});
it("while busy: Envoyer is aria-disabled but the enqueue still goes through, Interrompre stays active", async () => {
const input = new MockInputGateway();
renderInput(input, { busy: true });
const send = screen.getByRole("button", { name: "Envoyer" });
const interrupt = screen.getByRole("button", { name: "Interrompre" });
// Visually disabled (forward/fallback: dimmed, not hard-disabled).
expect(send.getAttribute("aria-disabled")).toBe("true");
// Interrompre is never disabled.
expect(interrupt.hasAttribute("disabled")).toBe(false);
// The enqueue path is NOT blocked while busy.
fireEvent.change(screen.getByLabelText("Message à l'agent"), {
target: { value: "queued while busy" },
});
fireEvent.click(send);
await waitFor(() => {
expect(input.submits).toEqual([
{ projectId: "p1", agentId: "a1", text: "queued while busy" },
]);
});
});
});

93
frontend/src/features/terminals/MediatedInput.tsx
View File

@ -1,93 +0,0 @@
/**
* MediatedInput (lot F1, cadrage §4.2/§4.3).
*
* The mediated input strip rendered **under** an agent cell's terminal. Human
* keystrokes for an agent no longer go straight to the PTY — they are typed here
* and routed through the {@link InputGateway} port:
*
* - **Envoyer** → `submit` (enqueue in the agent's single FIFO).
* - **Interrompre** → `interrupt` (preempt the current turn — NOT an enqueue).
*
* Busy semantics (forward/fallback, §4.2/§6): while the agent is `busy`,
* "Envoyer" is **disabled visually** but the enqueue path is never blocked — the
* backend FIFO is the single point that serialises. So `busy` only dims the
* button; "Interrompre" stays active so the user can always preempt.
*
* Hexagonal: this component talks to {@link InputGateway} via the DI provider,
* never to `invoke()` directly. The busy flag is supplied by the caller (fed by
* {@link useAgentBusy}); this keeps the component pure and easy to test.
*/
import { useState, type FormEvent } from "react";
import { Button, Input } from "@/shared";
import { useGateways } from "@/app/di";
export interface MediatedInputProps {
/** Owning project. */
projectId: string;
/** The agent this input strip targets. */
agentId: string;
/**
* Whether the agent is currently processing a turn. Dims "Envoyer" (without
* blocking the enqueue) and is irrelevant to "Interrompre" (always active).
* Defaults to `false`.
*/
busy?: boolean;
}
/** The mediated input strip for an agent cell. */
export function MediatedInput({
projectId,
agentId,
busy = false,
}: MediatedInputProps) {
const { input } = useGateways();
const [text, setText] = useState("");
const send = async () => {
const value = text;
if (value.trim() === "") return;
// Clear optimistically: the enqueue is fire-and-forward; never block the
// user (forward/fallback). Even while busy the submit goes through.
setText("");
await input.submit(projectId, agentId, value);
};
const onSubmit = (e: FormEvent) => {
e.preventDefault();
void send();
};
const onInterrupt = () => {
void input.interrupt(projectId, agentId);
};
return (
<form
data-testid="mediated-input"
className="flex items-center gap-2 p-2 border-t border-border bg-surface"
onSubmit={onSubmit}
>
<Input
aria-label="Message à l'agent"
placeholder={busy ? "Agent occupé — sera mis en file…" : "Message…"}
value={text}
onChange={(e) => setText(e.target.value)}
/>
<Button
type="submit"
variant="primary"
// Visually disabled while busy, but the enqueue path stays open: the
// user can still press Enter to forward into the FIFO (§4.2/§6).
aria-disabled={busy || undefined}
className={busy ? "opacity-50" : undefined}
>
Envoyer
</Button>
<Button type="button" variant="danger" onClick={onInterrupt}>
Interrompre
</Button>
</form>
);
}

174
frontend/src/features/terminals/TerminalView.portal.test.tsx Normal file
View File

@ -0,0 +1,174 @@
/**
* L3 — TerminalView agent cell is a **native terminal** wired to a
* {@link WritePortal} (ARCHITECTURE §20).
*
* Contracts exercised (xterm stubbed so `term.open` succeeds under jsdom and the
* keystroke wiring genuinely runs; the stub captures the `onData` handler):
* - In agent mode a keystroke is written to the PTY (native), AND reported to
* the portal for line counting.
* - The portal's `isSuspended()` gates the relay: while suspended, keystrokes
* are NOT forwarded to the PTY (but are still reported for counting).
* - The live handle is bound to the portal on adopt, unbound on unmount.
*/
import { beforeEach, describe, it, expect, vi } from "vitest";
import { render, waitFor } from "@testing-library/react";
const xtermState: { keyHandler: ((data: string) => void) | null } = {
keyHandler: null,
};
vi.mock("@xterm/xterm", () => ({
Terminal: class {
loadAddon() {}
open() {}
onData(cb: (data: string) => void) {
xtermState.keyHandler = cb;
return { dispose() {} };
}
onResize() {
return { dispose() {} };
}
write() {}
dispose() {}
get cols() {
return 80;
}
get rows() {
return 24;
}
},
}));
vi.mock("@xterm/addon-fit", () => ({
FitAddon: class {
fit() {}
},
}));
vi.mock("@xterm/xterm/css/xterm.css", () => ({}));
if (typeof globalThis.ResizeObserver === "undefined") {
globalThis.ResizeObserver = class {
observe() {}
unobserve() {}
disconnect() {}
} as unknown as typeof ResizeObserver;
}
import type { Gateways, TerminalHandle, WritePortal } from "@/ports";
import { DIProvider } from "@/app/di";
import { TerminalView } from "./TerminalView";
function makeHandle(write = vi.fn().mockResolvedValue(undefined)): TerminalHandle {
return {
sessionId: "s1",
write,
resize: vi.fn().mockResolvedValue(undefined),
detach: vi.fn(),
close: vi.fn().mockResolvedValue(undefined),
};
}
function makePortal(overrides: Partial<WritePortal> = {}): WritePortal {
return {
onHumanData: vi.fn(),
isSuspended: vi.fn(() => false),
bindHandle: vi.fn(),
unbindHandle: vi.fn(),
...overrides,
};
}
function decode(b: Uint8Array): string {
return new TextDecoder().decode(b);
}
beforeEach(() => {
xtermState.keyHandler = null;
});
describe("TerminalView native agent terminal + portal (§20)", () => {
it("writes keystrokes to the PTY in agent mode and reports them to the portal", async () => {
const write = vi.fn().mockResolvedValue(undefined);
const handle = makeHandle(write);
const open = vi.fn(async () => handle);
const portal = makePortal();
const gateways = { terminal: { reattach: vi.fn() } } as unknown as Gateways;
render(
<DIProvider gateways={gateways}>
<TerminalView cwd="/c" open={open} agentMode portal={portal} />
</DIProvider>,
);
await waitFor(() => expect(xtermState.keyHandler).not.toBeNull());
await waitFor(() => expect(portal.bindHandle).toHaveBeenCalledWith(handle));
xtermState.keyHandler!("a");
expect(portal.onHumanData).toHaveBeenCalledWith("a");
await waitFor(() => expect(write).toHaveBeenCalled());
expect(decode(write.mock.calls[0][0])).toBe("a");
});
it("does NOT forward keystrokes while the portal is suspended (but still counts them)", async () => {
const write = vi.fn().mockResolvedValue(undefined);
const handle = makeHandle(write);
const open = vi.fn(async () => handle);
const onHumanData = vi.fn();
const portal = makePortal({ isSuspended: () => true, onHumanData });
const gateways = { terminal: { reattach: vi.fn() } } as unknown as Gateways;
render(
<DIProvider gateways={gateways}>
<TerminalView cwd="/c" open={open} agentMode portal={portal} />
</DIProvider>,
);
await waitFor(() => expect(xtermState.keyHandler).not.toBeNull());
await waitFor(() => expect(portal.bindHandle).toHaveBeenCalled());
xtermState.keyHandler!("x");
// Reported for counting, but the relay is suspended ⇒ not written.
expect(onHumanData).toHaveBeenCalledWith("x");
expect(write).not.toHaveBeenCalled();
});
it("unbinds the handle from the portal on unmount", async () => {
const handle = makeHandle();
const open = vi.fn(async () => handle);
const portal = makePortal();
const gateways = { terminal: { reattach: vi.fn() } } as unknown as Gateways;
const { unmount } = render(
<DIProvider gateways={gateways}>
<TerminalView cwd="/c" open={open} agentMode portal={portal} />
</DIProvider>,
);
await waitFor(() => expect(portal.bindHandle).toHaveBeenCalled());
unmount();
expect(portal.unbindHandle).toHaveBeenCalled();
});
it("a PLAIN cell ignores the portal and writes keystrokes natively", async () => {
const write = vi.fn().mockResolvedValue(undefined);
const handle = makeHandle(write);
const open = vi.fn(async () => handle);
const portal = makePortal();
const gateways = { terminal: { reattach: vi.fn() } } as unknown as Gateways;
render(
<DIProvider gateways={gateways}>
{/* agentMode false: portal must never be touched */}
<TerminalView cwd="/c" open={open} portal={portal} />
</DIProvider>,
);
await waitFor(() => expect(xtermState.keyHandler).not.toBeNull());
xtermState.keyHandler!("l");
await waitFor(() => expect(write).toHaveBeenCalled());
expect(portal.onHumanData).not.toHaveBeenCalled();
expect(portal.bindHandle).not.toHaveBeenCalled();
});
});

60
frontend/src/features/terminals/TerminalView.tsx
View File

@ -3,11 +3,14 @@
* {@link TerminalGateway} port (or a custom opener), and fits it to its container:
*
* - PTY output (gateway `onData`) → `term.write(bytes)`.
* - xterm `onData` (keystrokes) → `handle.write(bytes)` **only for a plain
* (non-agent) cell** (a raw shell). In **agent mode** (`agentMode`, lot F2,
* cadrage §4.2) keystrokes are NOT written to the PTY: input is mediated by
* IdeA through {@link MediatedInput}. The PTY **output** path stays live and
* INCHANGED in both modes (xterm is always the raw output view).
* - xterm `onData` (keystrokes) → `handle.write(bytes)` in **both** modes: the
* agent cell is a **native terminal** (ARCHITECTURE §20), so human keystrokes
* (Enter included) reach the PTY unconditionally, exactly like a raw shell.
* In agent mode the keystrokes are additionally reported to the write-portal
* (a {@link WritePortal} supplied via `portal`) which (a) keeps a *human line*
* counter (+1 per printable, reset on Enter/Ctrl-C) and (b) can momentarily
* **suspend** the keystroke relay while it injects a delegation. The PTY
* **output** path stays live and unchanged in both modes.
* - container resize (fit addon) → `handle.resize(rows, cols)`.
*
* Pure presentation: it only knows the port, never `invoke()`/`Channel`
@ -40,6 +43,7 @@ import type {
OpenTerminalOptions,
ReattachResult,
TerminalHandle,
WritePortal,
} from "@/ports";
interface TerminalViewProps {
@ -76,14 +80,21 @@ interface TerminalViewProps {
*/
onSessionId?: (sessionId: string) => void;
/**
* Agent mode (lot F2, cadrage §4.2). When `true` the cell hosts an agent, so
* keystrokes (`term.onData`) are **not** forwarded to the PTY — input is
* mediated by IdeA through {@link MediatedInput} rendered under the terminal.
* The PTY **output** stays live and unchanged (xterm remains the raw output
* view). When `false`/absent the cell is a plain shell: keystrokes go straight
* to the PTY (current behaviour). Defaults to `false`.
* Agent mode (ARCHITECTURE §20). When `true` the cell hosts an agent and the
* terminal is **native**: keystrokes (`term.onData`) reach the PTY exactly
* like a plain shell, AND are reported to the {@link WritePortal} (`portal`)
* for line counting / suspension. When `false`/absent the cell is a plain
* shell with no portal. Defaults to `false`.
*/
agentMode?: boolean;
/**
* The write-portal for this agent cell (ARCHITECTURE §20). Only meaningful in
* agent mode: it receives keystroke reports, gates the relay via
* {@link WritePortal.isSuspended}, and is given the live handle so it can
* inject delegations through the same single PTY writer. Absent for plain
* cells.
*/
portal?: WritePortal;
}
export function TerminalView({
@ -93,6 +104,7 @@ export function TerminalView({
sessionId,
onSessionId,
agentMode = false,
portal,
}: TerminalViewProps) {
const { terminal } = useGateways();
const containerRef = useRef<HTMLDivElement | null>(null);
@ -116,6 +128,8 @@ export function TerminalView({
terminalRef.current = terminal;
const agentModeRef = useRef(agentMode);
agentModeRef.current = agentMode;
const portalRef = useRef(portal);
portalRef.current = portal;
useEffect(() => {
const container = containerRef.current;
@ -151,14 +165,22 @@ export function TerminalView({
let handle: TerminalHandle | null = null;
const encoder = new TextEncoder();
// Keystroke → PTY path. In **agent mode** (F2) keystrokes are mediated by
// IdeA (MediatedInput) and must NOT reach the PTY here; we drop them so the
// raw terminal is output-only for the human. In **plain mode** keystrokes go
// straight to the PTY (raw shell), buffering any that arrive before the PTY
// finished opening. The output path below is unchanged in both modes.
// Keystroke → PTY path. The agent cell is a **native terminal**
// (ARCHITECTURE §20): keystrokes reach the PTY exactly like a plain shell.
// In agent mode we additionally (1) report the keystroke to the write-portal
// for line counting, and (2) honour the portal's `isSuspended()` flag, which
// is raised while the portal injects a delegation so the human keystroke does
// not race the injected text. Keystrokes arriving before the PTY opened are
// buffered. The output path below is unchanged in both modes.
let pending = "";
const onKey = term.onData((data) => {
if (agentModeRef.current) return;
const portal = portalRef.current;
if (agentModeRef.current && portal) {
// Always report for counting (even while suspended — the portal decides
// what counts), then drop the relay while the portal is injecting.
portal.onHumanData(data);
if (portal.isSuspended()) return;
}
if (handle) void handle.write(encoder.encode(data));
else pending += data;
});
@ -176,6 +198,9 @@ export function TerminalView({
return;
}
handle = h;
// Hand the live handle to the write-portal so it can inject delegations
// through the SAME single PTY writer (no second physical writer).
if (agentModeRef.current) portalRef.current?.bindHandle(h);
if (pending) {
void h.write(encoder.encode(pending));
pending = "";
@ -268,6 +293,7 @@ export function TerminalView({
if (rafId) cancelAnimationFrame(rafId);
ro.disconnect();
onKey.dispose();
portalRef.current?.unbindHandle();
// DETACH, never close: tearing the view down (navigation / layout change)
// must leave the backend PTY running so the AI isn't cut off. Killing the
// PTY is an explicit user action handled elsewhere.

8
frontend/src/features/terminals/index.ts
View File

@ -1,8 +1,6 @@
/** Terminals feature (L3): xterm.js wrapper bound to the `TerminalGateway`. */
/** Terminals (L3): xterm.js wrapper bound to the `TerminalGateway`. */
export { TerminalView } from "./TerminalView";
export { ResumeConversationPopup } from "./ResumeConversationPopup";
export { MediatedInput } from "./MediatedInput";
export type { MediatedInputProps } from "./MediatedInput";
export { useAgentBusy } from "./useAgentBusy";
export type { AgentBusyMap } from "./useAgentBusy";
export { useWritePortal } from "./useWritePortal";
export type { UseWritePortalResult } from "./useWritePortal";

80
frontend/src/features/terminals/useAgentBusy.test.tsx
View File

@ -1,80 +0,0 @@
/**
* F1 — {@link useAgentBusy} fed by `agentBusyChanged` domain events through the
* mock {@link MockSystemGateway}. Asserts the busy store tracks per-agent state
* and that a busy agent drives the {@link MediatedInput} button states.
*/
import { describe, it, expect } from "vitest";
import { render, screen, waitFor, act } from "@testing-library/react";
import type { Gateways } from "@/ports";
import { MockInputGateway, MockSystemGateway } from "@/adapters/mock";
import { DIProvider } from "@/app/di";
import { MediatedInput } from "./MediatedInput";
import { useAgentBusy } from "./useAgentBusy";
/** Tiny harness: renders the input with `busy` derived from the store. */
function BusyHarness({ agentId }: { agentId: string }) {
const busy = useAgentBusy();
return (
<MediatedInput projectId="p1" agentId={agentId} busy={busy[agentId] ?? false} />
);
}
function renderHarness(system: MockSystemGateway, agentId = "a1") {
const gateways = {
input: new MockInputGateway(),
system,
} as unknown as Gateways;
return render(
<DIProvider gateways={gateways}>
<BusyHarness agentId={agentId} />
</DIProvider>,
);
}
describe("useAgentBusy (with MockSystemGateway events)", () => {
it("starts idle: Envoyer is not aria-disabled", () => {
renderHarness(new MockSystemGateway());
const send = screen.getByRole("button", { name: "Envoyer" });
expect(send.getAttribute("aria-disabled")).toBeNull();
});
it("an agentBusyChanged(true) event dims Envoyer; (false) re-enables it", async () => {
const system = new MockSystemGateway();
renderHarness(system, "a1");
act(() => {
system.emit({ type: "agentBusyChanged", agentId: "a1", busy: true });
});
await waitFor(() => {
expect(
screen.getByRole("button", { name: "Envoyer" }).getAttribute("aria-disabled"),
).toBe("true");
});
act(() => {
system.emit({ type: "agentBusyChanged", agentId: "a1", busy: false });
});
await waitFor(() => {
expect(
screen.getByRole("button", { name: "Envoyer" }).getAttribute("aria-disabled"),
).toBeNull();
});
});
it("a busy event for another agent does not affect this cell", async () => {
const system = new MockSystemGateway();
renderHarness(system, "a1");
act(() => {
system.emit({ type: "agentBusyChanged", agentId: "other", busy: true });
});
// Give the effect a tick; this cell (a1) must stay idle.
await waitFor(() => {
expect(
screen.getByRole("button", { name: "Envoyer" }).getAttribute("aria-disabled"),
).toBeNull();
});
});
});

58
frontend/src/features/terminals/useAgentBusy.ts
View File

@ -1,58 +0,0 @@
/**
* Light per-agent busy store (lot F1, cadrage §4.2/§4.3).
*
* Keeps `agentBusy: Record<agentId, boolean>` fed by the discrete
* `agentBusyChanged` domain event relayed from the backend (a real event, not a
* high-frequency channel). The component consumes this to *disable* the "Envoyer"
* button visually while still allowing the enqueue (forward/fallback, §6) and to
* keep "Interrompre" active.
*
* For F1 the backend event (lot C4) may not yet be emitted; until then the store
* simply stays all-idle, and tests drive it through the mock `SystemGateway`.
*/
import { useEffect, useState } from "react";
import type { DomainEvent } from "@/domain";
import { useGateways } from "@/app/di";
/** A read-only map of agentId → busy. Absent key ⇒ idle. */
export type AgentBusyMap = Readonly<Record<string, boolean>>;
/**
* Subscribes to `agentBusyChanged` domain events and returns the current
* busy map. Unsubscribes on unmount.
*/
export function useAgentBusy(): AgentBusyMap {
const { system } = useGateways();
const [busy, setBusy] = useState<Record<string, boolean>>({});
useEffect(() => {
// The system gateway may be absent in some compositions/tests; stay all-idle
// rather than throw (the busy map is a best-effort overlay).
if (!system) return;
let unsubscribe: (() => void) | undefined;
let cancelled = false;
void system
.onDomainEvent((event: DomainEvent) => {
if (event.type !== "agentBusyChanged") return;
setBusy((prev) =>
prev[event.agentId] === event.busy
? prev
: { ...prev, [event.agentId]: event.busy },
);
})
.then((un) => {
if (cancelled) un();
else unsubscribe = un;
});
return () => {
cancelled = true;
unsubscribe?.();
};
}, [system]);
return busy;
}

270
frontend/src/features/terminals/useWritePortal.test.tsx Normal file
View File

@ -0,0 +1,270 @@
/**
* L4 — the write-portal hook {@link useWritePortal} (ARCHITECTURE §20).
*
* Driven with fake timers + a fake handle recording writes, and the real
* {@link DIProvider} wiring the in-memory {@link MockSystemGateway} (to emit
* `delegationReady`) and {@link MockInputGateway} (to record the ack).
*
* Cases (cadrage §20.6):
* - injects NOTHING while the human line is non-empty (counter > 0);
* - at an empty line → writes `text` WITHOUT `\n`, then `\r` after the delay;
* - K=2 race → exactly two `\x7f` before the text;
* - 2 s floor → overlay/suspension held until 2000 ms after step (b);
* - the relay is suspended during the overlay;
* - `delegationDelivered` is acked exactly once after (d);
* - default submitSequence/delay applied when the profile omits them.
*/
import { afterEach, beforeEach, describe, it, expect, vi } from "vitest";
import { act, renderHook } from "@testing-library/react";
import type { Gateways, TerminalHandle } from "@/ports";
import {
MockInputGateway,
MockSystemGateway,
} from "@/adapters/mock";
import { DIProvider } from "@/app/di";
import { useWritePortal } from "./useWritePortal";
function makeHandle(): { handle: TerminalHandle; writes: string[] } {
const writes: string[] = [];
const handle: TerminalHandle = {
sessionId: "s1",
write: vi.fn(async (b: Uint8Array) => {
writes.push(new TextDecoder().decode(b));
}),
resize: vi.fn().mockResolvedValue(undefined),
detach: vi.fn(),
close: vi.fn().mockResolvedValue(undefined),
};
return { handle, writes };
}
function setup(agentId: string | null = "ag1") {
const system = new MockSystemGateway();
const input = new MockInputGateway();
const gateways = { system, input } as unknown as Gateways;
const wrapper = ({ children }: { children: React.ReactNode }) => (
<DIProvider gateways={gateways}>{children}</DIProvider>
);
const view = renderHook(() => useWritePortal("p1", agentId), { wrapper });
return { system, input, view };
}
const PROFILELESS = (ticket: string, text: string) => ({
type: "delegationReady" as const,
agentId: "ag1",
ticket,
text,
});
beforeEach(() => {
vi.useFakeTimers();
});
afterEach(() => {
vi.useRealTimers();
});
describe("useWritePortal (§20)", () => {
it("injects NOTHING while the human line is non-empty, releases at empty line", async () => {
const { system, view } = setup();
const { handle, writes } = makeHandle();
// Bind a live handle and type a printable char (line non-empty).
act(() => view.result.current.portal.bindHandle(handle));
act(() => view.result.current.portal.onHumanData("a")); // K = 1
// A delegation arrives while the line is non-empty.
await act(async () => {
system.emit(PROFILELESS("t1", "hello"));
});
// Nothing written: the delegation waits.
expect(writes.length).toBe(0);
// The human presses Enter → line empty → injection fires.
await act(async () => {
view.result.current.portal.onHumanData("\r");
await vi.runAllTimersAsync();
});
// text written without trailing newline, then the submit sequence.
expect(writes).toContain("hello");
expect(writes[writes.length - 1]).toBe("\r");
expect(writes.join("")).not.toContain("\n");
});
it("at an empty line writes text then \\r after the delay, acking once", async () => {
const { system, input, view } = setup();
const { handle, writes } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
await act(async () => {
system.emit(PROFILELESS("t1", "do it"));
// Flush the microtask that defers step (c)/(d) but NOT the submit delay.
await Promise.resolve();
await Promise.resolve();
});
// Line is empty (counter 0) ⇒ handshake started; overlay raised.
expect(view.result.current.overlay).toBe(true);
// Before the delay elapses, only the text has been written (no submit yet).
expect(writes).toEqual(["do it"]);
await act(async () => {
await vi.runAllTimersAsync();
});
expect(writes).toEqual(["do it", "\r"]);
// Acked exactly once with the right shape.
expect(input.delivered).toEqual([
{ projectId: "p1", agentId: "ag1", ticket: "t1" },
]);
});
it("K=2 race → exactly two \\x7f backspaces before the text (never Ctrl-U)", async () => {
const { system, view } = setup();
const { handle, writes } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
// The delegation arrives at an EMPTY line, so the handshake starts and
// raises suspension. The §20.6 race: in the micro-window between "empty
// observed" (b) and step (c) re-checking the counter, the human types K=2
// printables. TerminalView still reports them while suspended, so the
// counter is 2 when step (c) reads it ⇒ exactly two backspaces.
await act(async () => {
system.emit(PROFILELESS("t1", "TASK"));
// Race two keystrokes in before the timers (delay) flush step (c)/(d).
view.result.current.portal.onHumanData("x");
view.result.current.portal.onHumanData("y");
await vi.runAllTimersAsync();
});
const idxText = writes.indexOf("TASK");
expect(idxText).toBeGreaterThan(0);
expect(writes[idxText - 1]).toBe("\x7f\x7f");
expect(writes.join("")).not.toContain("\x15"); // never Ctrl-U
});
it("holds the overlay until the 2 s floor after step (b)", async () => {
const { system, view } = setup();
const { handle } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
await act(async () => {
system.emit(PROFILELESS("t1", "hi"));
});
expect(view.result.current.overlay).toBe(true);
// Finish the write phase (default 60 ms delay) — still well under 2 s.
await act(async () => {
await vi.advanceTimersByTimeAsync(100);
});
// The relay is still suspended and the overlay still up (2 s floor).
expect(view.result.current.portal.isSuspended()).toBe(true);
expect(view.result.current.overlay).toBe(true);
// Cross the 2 s floor.
await act(async () => {
await vi.advanceTimersByTimeAsync(2000);
});
expect(view.result.current.overlay).toBe(false);
expect(view.result.current.portal.isSuspended()).toBe(false);
});
it("suspends the keystroke relay during the overlay", async () => {
const { system, view } = setup();
const { handle } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
expect(view.result.current.portal.isSuspended()).toBe(false);
await act(async () => {
system.emit(PROFILELESS("t1", "hi"));
});
// During injection the relay is suspended.
expect(view.result.current.portal.isSuspended()).toBe(true);
await act(async () => {
await vi.runAllTimersAsync();
});
expect(view.result.current.portal.isSuspended()).toBe(false);
});
it("applies the profile submitSequence/submitDelayMs when provided", async () => {
const { system, view } = setup();
const { handle, writes } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
await act(async () => {
system.emit({
type: "delegationReady",
agentId: "ag1",
ticket: "t1",
text: "msg",
submitSequence: "\n",
submitDelayMs: 200,
});
});
// After 100 ms (< 200) the submit sequence has not been written yet.
await act(async () => {
await vi.advanceTimersByTimeAsync(100);
});
expect(writes).toEqual(["msg"]);
await act(async () => {
await vi.runAllTimersAsync();
});
expect(writes).toEqual(["msg", "\n"]);
});
it("ignores delegationReady for a different agent", async () => {
const { system, view } = setup();
const { handle, writes } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
await act(async () => {
system.emit({
type: "delegationReady",
agentId: "OTHER",
ticket: "t1",
text: "nope",
});
await vi.runAllTimersAsync();
});
expect(writes.length).toBe(0);
expect(view.result.current.overlay).toBe(false);
});
it("waits for a live handle before injecting", async () => {
const { system, input, view } = setup();
const { handle, writes } = makeHandle();
// No handle yet: an arriving delegation must NOT write or ack.
await act(async () => {
system.emit(PROFILELESS("t1", "later"));
await vi.runAllTimersAsync();
});
expect(writes.length).toBe(0);
expect(input.delivered.length).toBe(0);
// Handle becomes live (PTY opened) → injection proceeds.
await act(async () => {
view.result.current.portal.bindHandle(handle);
await vi.runAllTimersAsync();
});
expect(writes).toEqual(["later", "\r"]);
expect(input.delivered.length).toBe(1);
});
it("is inert for a plain (agent-less) cell", async () => {
const { system, view } = setup(null);
const { handle, writes } = makeHandle();
act(() => view.result.current.portal.bindHandle(handle));
await act(async () => {
system.emit(PROFILELESS("t1", "x"));
await vi.runAllTimersAsync();
});
expect(writes.length).toBe(0);
expect(view.result.current.overlay).toBe(false);
});
});

244
frontend/src/features/terminals/useWritePortal.ts Normal file
View File

@ -0,0 +1,244 @@
/**
* useWritePortal — the single write-portal of an agent cell (ARCHITECTURE §20).
*
* The agent cell hosts the CLI as a **native terminal**: every human keystroke
* (Enter included) reaches the PTY through {@link TerminalView}. IdeA never owns
* a chat box; it only *observes* a "human line in progress" counter and, when a
* delegation is ready, injects its text at a **clean boundary** (human line
* empty) through the SAME handle the human keystrokes use — so there is exactly
* one physical PTY writer (the front), no race between two writers.
*
* Responsibilities (the four the cadrage assigns to the portal):
* 1. The **human-line counter**: `+1` per printable keystroke, `reset` on Enter
* (`\r`/`\n`) and Ctrl-C (`\x03`). Only keystrokes are counted; control
* sequences (arrows/escape, CSI…) are ignored so they never falsely mark the
* line "non-empty" and block injection forever.
* 2. The **local FIFO** of `delegationReady` events received for this agent
* (via `system.onDomainEvent`, filtered like {@link useAgentBusy}).
* 3. The **handshake (b→e)**: only when a delegation is at the head of the FIFO
* AND the human line is empty:
* (b) suspend the keystroke relay + raise the overlay;
* (c) re-check the counter K; if K>0 write exactly K backspaces `\x7f`
* (never Ctrl-U) to erase what the human typed in the micro-window;
* (d) `write(text)` WITHOUT `\n`, then after `submitDelayMs ?? 60` ms
* `write(submitSequence ?? "\r")`; then ack via `delegationDelivered`
* exactly once;
* (e) drop the suspension + lower the overlay, with a **2 s floor** from
* (b) (anti-flash): if (e) would happen < 2000 ms after (b), the
* overlay/suspension are held until 2000 ms.
* A delegation that arrives while the line is non-empty simply **waits** in
* the FIFO (no write, no refusal, no loss) and is released at the next empty
* line.
* 4. The boolean **overlay** state, rendered by the hosting cell.
*
* Hexagonal: the hook talks to ports via DI (`system`, `input`), never to
* `invoke()`. It returns a {@link WritePortal} object whose identity is stable
* (memoised) so {@link TerminalView} can hold it in a ref.
*/
import { useEffect, useMemo, useRef, useState } from "react";
import type { DomainEvent } from "@/domain";
import type { TerminalHandle, WritePortal } from "@/ports";
import { useGateways } from "@/app/di";
/** Default submit sequence when the profile omits one (paste-detection esquive). */
const DEFAULT_SUBMIT_SEQUENCE = "\r";
/** Default delay (ms) between text and submit-sequence writes. */
const DEFAULT_SUBMIT_DELAY_MS = 60;
/** Anti-flash overlay floor (ms) from step (b). */
const OVERLAY_FLOOR_MS = 2000;
/** A pending delegation kept in the local FIFO. */
interface PendingDelegation {
ticket: string;
text: string;
submitSequence?: string;
submitDelayMs?: number;
}
/** What the hook returns: the portal object (for TerminalView) + overlay state. */
export interface UseWritePortalResult {
/** The portal object handed to {@link TerminalView} via its `portal` prop. */
portal: WritePortal;
/** Whether the "an agent is speaking…" overlay must be shown. */
overlay: boolean;
}
const encoder = new TextEncoder();
/**
* True for a single printable keystroke chunk. We count printable input only;
* control bytes (ESC/CSI: arrows, function keys, Ctrl-*) must not bump the
* counter, otherwise an arrow keypress would mark the line "non-empty" forever.
*
* A keystroke chunk from xterm's `onData` is normally a single grapheme, but a
* paste can deliver many. We treat the chunk as printable iff it contains **no**
* control character (code point < 0x20 or 0x7f). Enter (`\r`/`\n`) and Ctrl-C
* (`\x03`) are handled separately as resets before this check.
*/
function isPrintable(data: string): boolean {
if (data.length === 0) return false;
for (const ch of data) {
const code = ch.codePointAt(0)!;
if (code < 0x20 || code === 0x7f) return false;
}
return true;
}
export function useWritePortal(
projectId: string,
agentId: string | null,
): UseWritePortalResult {
const { system, input } = useGateways();
const [overlay, setOverlay] = useState(false);
// ── Mutable state held in refs (the handshake runs outside React render) ───
const counterRef = useRef(0); // human line counter K
const queueRef = useRef<PendingDelegation[]>([]); // local FIFO
const handleRef = useRef<TerminalHandle | null>(null);
const suspendedRef = useRef(false); // relay suspended while injecting
const injectingRef = useRef(false); // a handshake is in flight
// Stable refs to the gateways used inside the (non-reactive) handshake.
const inputRef = useRef(input);
inputRef.current = input;
const agentIdRef = useRef(agentId);
agentIdRef.current = agentId;
// The input port needs the project id for the delivery ack.
const projectIdRef = useRef(projectId);
projectIdRef.current = projectId;
// ── (3)+(4): the handshake, attempted whenever a boundary may have opened ──
const tryInject = useRef<() => void>(() => {});
tryInject.current = () => {
if (injectingRef.current) return; // one handshake at a time
const head = queueRef.current[0];
if (!head) return;
if (counterRef.current > 0) return; // line not empty ⇒ wait
const handle = handleRef.current;
if (!handle) return; // no live PTY yet ⇒ wait
const agent = agentIdRef.current;
const project = projectIdRef.current;
if (!agent) return;
injectingRef.current = true;
const startedAt = Date.now();
// (b) suspend the relay + raise the overlay.
suspendedRef.current = true;
setOverlay(true);
void (async () => {
try {
// Yield once so any keystroke that landed in the micro-window between
// "empty observed" (a) and the suspension taking hold (b) is counted
// before we re-check K at step (c). Without this the race window would
// be zero and a late keystroke would survive the injection un-erased.
await Promise.resolve();
// (c) re-check K; erase exactly K human keystrokes with `\x7f`
// (backspace) — never Ctrl-U (which could clear more than the human typed).
const k = counterRef.current;
if (k > 0) {
await handle.write(encoder.encode("\x7f".repeat(k)));
counterRef.current = 0;
}
// (d) write the text WITHOUT a trailing newline, then the submit
// sequence after the profile's delay (esquive de la paste-detection).
await handle.write(encoder.encode(head.text));
const delay = head.submitDelayMs ?? DEFAULT_SUBMIT_DELAY_MS;
await sleep(delay);
const submit = head.submitSequence ?? DEFAULT_SUBMIT_SEQUENCE;
await handle.write(encoder.encode(submit));
// Dequeue + ack exactly once (best-effort; never throws the handshake).
queueRef.current.shift();
try {
await inputRef.current.delegationDelivered(project, agent, head.ticket);
} catch {
/* ack is observability-only; never block the portal */
}
} finally {
// (e) lower the overlay + resume the relay, with the 2 s anti-flash floor.
const elapsed = Date.now() - startedAt;
const remaining = OVERLAY_FLOOR_MS - elapsed;
if (remaining > 0) await sleep(remaining);
suspendedRef.current = false;
setOverlay(false);
injectingRef.current = false;
// A boundary may now be open for the next queued delegation.
if (queueRef.current.length > 0) tryInject.current();
}
})();
};
// ── (2): subscribe to delegationReady for THIS agent and enqueue ───────────
useEffect(() => {
if (!system || !agentId) return;
let unsubscribe: (() => void) | undefined;
let cancelled = false;
void system
.onDomainEvent((event: DomainEvent) => {
if (event.type !== "delegationReady") return;
if (event.agentId !== agentId) return;
queueRef.current.push({
ticket: event.ticket,
text: event.text,
submitSequence: event.submitSequence,
submitDelayMs: event.submitDelayMs,
});
// A delegation may already be at a clean boundary (line empty) — try now.
tryInject.current();
})
.then((un) => {
if (cancelled) un();
else unsubscribe = un;
});
return () => {
cancelled = true;
unsubscribe?.();
};
}, [system, agentId]);
// ── (1)+(3): the portal object handed to TerminalView (stable identity) ────
const portal = useMemo<WritePortal>(
() => ({
onHumanData(data: string) {
// Reset on Enter / Ctrl-C, increment on a printable keystroke, ignore
// control sequences. After a reset the line is empty ⇒ a queued
// delegation may now be injectable.
if (data === "\r" || data === "\n" || data === "\x03") {
counterRef.current = 0;
tryInject.current();
return;
}
if (isPrintable(data)) {
counterRef.current += 1;
}
},
isSuspended() {
return suspendedRef.current;
},
bindHandle(handle: TerminalHandle) {
handleRef.current = handle;
// The PTY just became available — a queued delegation may be injectable.
tryInject.current();
},
unbindHandle() {
handleRef.current = null;
},
}),
[],
);
return { portal, overlay };
}
/** Promise-based delay used by the handshake (driven by fake timers in tests). */
function sleep(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms));
}