/**
 * Skill/custom queued-message display contracts.
 *
 * Custom queued chips now ride on the queued AgentMessage itself via
 * details.__queueChipText. The session derives pending display directly from
 * the agent-core queue; there is no separate display mirror to splice.
 */
import { afterEach, beforeEach, describe, expect, it, type Mock, vi } from "bun:test";
import * as path from "node:path";
import { Agent } from "@oh-my-pi/pi-agent-core";
import type { ImageContent, TextContent } from "@oh-my-pi/pi-ai";
import { getBundledModel } from "@oh-my-pi/pi-catalog/models";
import { ModelRegistry } from "@oh-my-pi/pi-coding-agent/config/model-registry";
import { Settings } from "@oh-my-pi/pi-coding-agent/config/settings";
import type { Skill } from "@oh-my-pi/pi-coding-agent/extensibility/skills";
import { EventController } from "@oh-my-pi/pi-coding-agent/modes/controllers/event-controller";
import { InputController } from "@oh-my-pi/pi-coding-agent/modes/controllers/input-controller";
import { getThemeByName, setThemeInstance } from "@oh-my-pi/pi-coding-agent/modes/theme/theme";
import type { CompactionQueuedMessage, InteractiveModeContext } from "@oh-my-pi/pi-coding-agent/modes/types";
import { UiHelpers } from "@oh-my-pi/pi-coding-agent/modes/utils/ui-helpers";
import { AgentSession, type AgentSessionEvent } from "@oh-my-pi/pi-coding-agent/session/agent-session";
import { AuthStorage } from "@oh-my-pi/pi-coding-agent/session/auth-storage";
import { SKILL_PROMPT_MESSAGE_TYPE, type SkillPromptDetails } from "@oh-my-pi/pi-coding-agent/session/messages";
import { SessionManager } from "@oh-my-pi/pi-coding-agent/session/session-manager";
import { Container } from "@oh-my-pi/pi-tui";
import { TempDir } from "@oh-my-pi/pi-utils";

type StubEditor = {
	setText: (text: string) => void;
	getText: () => string;
	getExpandedText: () => string;
	clearDraft: (historyText?: string) => void;
	addToHistory: Mock<(...args: unknown[]) => unknown>;
	onSubmit?: (text: string) => Promise<void>;
	pendingImages: ImageContent[];
	pendingImageLinks: (string | undefined)[];
	imageLinks?: (string | undefined)[];
};

type PromptCustomMessage = Mock<
	(
		message: {
			customType?: string;
			content?: string | (TextContent | ImageContent)[];
			display?: boolean;
			attribution?: string;
			details: SkillPromptDetails;
		},
		options?: { streamingBehavior?: "steer" | "followUp"; queueChipText?: string; queueOnly?: boolean },
	) => Promise<void>
>;

async function writeSkillFile(dir: string, skillName: string, body: string): Promise<Skill> {
	const skillPath = path.join(dir, `${skillName}.md`);
	await Bun.write(skillPath, `---\nname: ${skillName}\n---\n${body}\n`);
	return { name: skillName, description: "", filePath: skillPath, baseDir: dir, source: "test" };
}

function createStubInputControllerContext(opts: {
	skillCommands: Map<string, Skill>;
	isStreaming: boolean;
	isCompacting?: boolean;
}) {
	let editorText = "";
	const editor: StubEditor = {
		setText(text) {
			editorText = text;
		},
		getText() {
			return editorText;
		},
		getExpandedText() {
			return editorText;
		},
		clearDraft(historyText?: string) {
			if (historyText !== undefined) this.addToHistory(historyText);
			this.setText("");
			this.imageLinks = undefined;
			this.pendingImages = [];
			this.pendingImageLinks = [];
		},
		addToHistory: vi.fn(),
		pendingImages: [] as ImageContent[],
		pendingImageLinks: [] as (string | undefined)[],
	};
	const promptCustomMessage: PromptCustomMessage = vi.fn(async () => {});
	const prompt = vi.fn(async (_text: string, _options?: unknown) => {});
	const handleGoalModeCommand = vi.fn(async (_rest?: string) => {});
	const updatePendingMessagesDisplay = vi.fn();
	const requestRender = vi.fn();
	const showError = vi.fn();
	const queueCompactionMessage = vi.fn((_text: string, _mode: "steer" | "followUp", _images?: ImageContent[]) => {});
	const ctx = {
		editor,
		ui: { requestRender },
		skillCommands: opts.skillCommands,
		session: {
			isStreaming: opts.isStreaming,
			isCompacting: opts.isCompacting ?? false,
			isBashRunning: false,
			isEvalRunning: false,
			extensionRunner: undefined,
			prompt,
			promptCustomMessage,
		},
		get viewSession() {
			return (this as typeof ctx).session;
		},
		showError,
		handleGoalModeCommand,
		goalModeEnabled: false,
		updatePendingMessagesDisplay,
		isBashMode: false,
		isPythonMode: false,
		loopModeEnabled: false,
		compactionQueuedMessages: [],
		locallySubmittedUserSignatures: new Set<string>(),
		withLocalSubmission: async (_text: string, fn: () => unknown) => fn(),
		queueCompactionMessage,
	} as unknown as InteractiveModeContext;

	return {
		ctx,
		editor,
		prompt,
		promptCustomMessage,
		handleGoalModeCommand,
		updatePendingMessagesDisplay,
		requestRender,
		queueCompactionMessage,
	};
}

describe("InputController skill queue chip metadata", () => {
	let tempDir: TempDir;
	let skillCommands: Map<string, Skill>;

	beforeEach(async () => {
		tempDir = TempDir.createSync("@pi-skill-queue-stub-");
		const skill = await writeSkillFile(tempDir.path(), "test-skill", "Do the thing.");
		skillCommands = new Map<string, Skill>([["skill:test-skill", skill]]);
	});

	afterEach(() => {
		tempDir.removeSync();
		vi.restoreAllMocks();
	});

	it("passes slash-form queueChipText for streaming skill steers", async () => {
		const { ctx, editor, promptCustomMessage, updatePendingMessagesDisplay, requestRender } =
			createStubInputControllerContext({ skillCommands, isStreaming: true });
		const controller = new InputController(ctx);

		controller.setupEditorSubmitHandler();
		editor.setText("/skill:test-skill arg1 arg2");
		await editor.onSubmit?.("/skill:test-skill arg1 arg2");

		expect(promptCustomMessage).toHaveBeenCalledTimes(1);
		expect(promptCustomMessage.mock.calls[0]?.[1]).toEqual({
			streamingBehavior: "steer",
			queueChipText: "/skill:test-skill arg1 arg2",
		});
		expect(promptCustomMessage.mock.calls[0]?.[0].details.__queueChipText).toBeUndefined();
		expect(updatePendingMessagesDisplay).toHaveBeenCalledTimes(1);
		expect(requestRender).toHaveBeenCalledTimes(1);
	});

	it("queues known skill steers during compaction instead of dispatching immediately", async () => {
		const { ctx, editor, promptCustomMessage, queueCompactionMessage } = createStubInputControllerContext({
			skillCommands,
			isStreaming: false,
			isCompacting: true,
		});
		const controller = new InputController(ctx);

		controller.setupEditorSubmitHandler();
		editor.setText("/skill:test-skill arg1 arg2");
		await editor.onSubmit?.("/skill:test-skill arg1 arg2");

		expect(queueCompactionMessage).toHaveBeenCalledWith("/skill:test-skill arg1 arg2", "steer", undefined);
		expect(promptCustomMessage).not.toHaveBeenCalled();
	});

	it("passes slash-form queueChipText for streaming skill follow-ups", async () => {
		const { ctx, editor, promptCustomMessage } = createStubInputControllerContext({
			skillCommands,
			isStreaming: true,
		});
		const controller = new InputController(ctx);

		editor.setText("/skill:test-skill arg1 arg2");
		await controller.handleFollowUp();

		expect(promptCustomMessage.mock.calls[0]?.[1]).toEqual({
			streamingBehavior: "followUp",
			queueChipText: "/skill:test-skill arg1 arg2",
		});
	});

	it("streaming follow-up applies builtin slash commands instead of queueing them", async () => {
		const { ctx, editor, prompt, handleGoalModeCommand } = createStubInputControllerContext({
			skillCommands,
			isStreaming: true,
		});
		const controller = new InputController(ctx);

		editor.setText("/goal set Ship the release");
		await controller.handleFollowUp();

		expect(handleGoalModeCommand).toHaveBeenCalledWith("set Ship the release");
		expect(prompt).not.toHaveBeenCalled();
		expect(editor.getText()).toBe("");
	});

	it("idle skill prompt still leaves queueChipText out of persisted details", async () => {
		const { ctx, editor, promptCustomMessage } = createStubInputControllerContext({
			skillCommands,
			isStreaming: false,
		});
		const controller = new InputController(ctx);

		controller.setupEditorSubmitHandler();
		editor.setText("/skill:test-skill arg1 arg2");
		await editor.onSubmit?.("/skill:test-skill arg1 arg2");

		expect(promptCustomMessage.mock.calls[0]?.[1]).toEqual({
			streamingBehavior: "steer",
			queueChipText: "/skill:test-skill arg1 arg2",
		});
		expect(promptCustomMessage.mock.calls[0]?.[0].details.__queueChipText).toBeUndefined();
	});

	it("routes pending images through immediate skill submit and clears the draft", async () => {
		const image: ImageContent = { type: "image", data: "aGVsbG8=", mimeType: "image/png" };
		const { ctx, editor, promptCustomMessage } = createStubInputControllerContext({
			skillCommands,
			isStreaming: false,
		});
		const controller = new InputController(ctx);

		controller.setupEditorSubmitHandler();
		editor.setText("/skill:test-skill inspect this");
		editor.pendingImages = [image];
		editor.pendingImageLinks = ["file:///tmp/skill-image.png"];
		editor.imageLinks = editor.pendingImageLinks;
		await editor.onSubmit?.("/skill:test-skill inspect this");

		expect(promptCustomMessage).toHaveBeenCalledTimes(1);
		const message = promptCustomMessage.mock.calls[0]?.[0];
		if (!message || !Array.isArray(message.content)) {
			throw new Error("expected skill prompt to include image content blocks");
		}
		expect(message.content[0]).toMatchObject({ type: "text", text: expect.stringContaining("Do the thing.") });
		expect(message.content[1]).toEqual(image);
		expect(editor.getText()).toBe("");
		expect(editor.pendingImages).toEqual([]);
		expect(editor.pendingImageLinks).toEqual([]);
		expect(editor.imageLinks).toBeUndefined();
	});
});

describe("compaction skill re-invocation", () => {
	let tempDir: TempDir;
	let skillCommands: Map<string, Skill>;

	function firstPromptCustomCall(promptCustomMessage: PromptCustomMessage) {
		const call = promptCustomMessage.mock.calls[0];
		if (!call) {
			throw new Error("expected promptCustomMessage to be called");
		}
		return call;
	}

	function createCompactionDrainContext(queuedMessages: CompactionQueuedMessage[]) {
		const promptCustomMessageCalled = Promise.withResolvers<void>();
		const promptCustomMessage: PromptCustomMessage = vi.fn(async () => {
			promptCustomMessageCalled.resolve();
		});
		const prompt = vi.fn(async (_text: string, _options?: { streamingBehavior?: "steer" | "followUp" }) => {});
		const steer = vi.fn(async (_text: string, _images?: ImageContent[]) => {});
		const followUp = vi.fn(async (_text: string, _images?: ImageContent[]) => {});
		const ctx = {
			skillCommands,
			compactionQueuedMessages: queuedMessages,
			updatePendingMessagesDisplay: vi.fn(),
			showError: vi.fn(),
			isKnownSlashCommand: vi.fn(() => false),
			recordLocalSubmission: vi.fn((_text: string, _imageCount: number) => vi.fn()),
			withLocalSubmission: vi.fn(async (_text: string, fn: () => unknown) => Promise.resolve(fn())),
			session: {
				promptCustomMessage,
				prompt,
				steer,
				followUp,
				clearQueue: vi.fn(),
			},
		} as unknown as InteractiveModeContext;
		return { ctx, promptCustomMessage, promptCustomMessageCalled, prompt, steer, followUp };
	}

	beforeEach(async () => {
		tempDir = TempDir.createSync("@pi-skill-compaction-stub-");
		const skill = await writeSkillFile(tempDir.path(), "test-skill", "Do the thing.");
		skillCommands = new Map<string, Skill>([["skill:test-skill", skill]]);
	});

	afterEach(() => {
		tempDir.removeSync();
		vi.restoreAllMocks();
	});

	it("re-invokes a queued skill as a user-attributed skill prompt", async () => {
		const image: ImageContent = { type: "image", data: "aGVsbG8=", mimeType: "image/png" };
		const { ctx, promptCustomMessage, promptCustomMessageCalled, prompt, steer, followUp } =
			createCompactionDrainContext([{ text: "/skill:test-skill arg1 arg2", mode: "followUp", images: [image] }]);
		const uiHelpers = new UiHelpers(ctx);

		await uiHelpers.flushCompactionQueue({ willRetry: false });
		await promptCustomMessageCalled;

		const [message, options] = firstPromptCustomCall(promptCustomMessage);
		expect(message.customType).toBe(SKILL_PROMPT_MESSAGE_TYPE);
		expect(message.attribution).toBe("user");
		if (!Array.isArray(message.content)) {
			throw new Error("expected queued skill prompt to preserve image content blocks");
		}
		const renderedText = message.content[0];
		if (renderedText?.type !== "text") {
			throw new Error("expected first content block to be rendered skill text");
		}
		// Bug fix contract: a re-invoked user skill identifies itself and exposes its
		// skill directory so relative skill paths resolve after compaction.
		expect(renderedText.text).toContain("Do the thing.");
		expect(renderedText.text).toContain('The user has invoked the "test-skill" skill');
		expect(renderedText.text).toContain(`[Skill directory: ${tempDir.path()}]`);
		expect(renderedText.text).toMatch(/[Rr]esolve any relative paths/);
		expect(renderedText.text).toContain("User: arg1 arg2");
		expect(message.content[1]).toEqual(image);
		expect(message.details).toMatchObject({ name: "test-skill", args: "arg1 arg2", lineCount: 1 });
		expect(options).toEqual({
			streamingBehavior: "followUp",
			queueChipText: "/skill:test-skill arg1 arg2",
		});
		expect(prompt).not.toHaveBeenCalled();
		expect(steer).not.toHaveBeenCalled();
		expect(followUp).not.toHaveBeenCalled();
	});

	it("queues retry-drained skills without appending them to session history", async () => {
		const fixture = await createRealSession();
		try {
			const image: ImageContent = { type: "image", data: "cmV0cnk=", mimeType: "image/png" };
			const { ctx } = createCompactionDrainContext([
				{ text: "/skill:test-skill retry args", mode: "followUp", images: [image] },
			]);
			ctx.session = fixture.session;
			const uiHelpers = new UiHelpers(ctx);

			await uiHelpers.flushCompactionQueue({ willRetry: true });

			expect(fixture.session.getQueuedMessages().followUp).toEqual(["/skill:test-skill retry args"]);
			const queued = fixture.session.agent.peekFollowUpQueue()[0];
			if (queued?.role !== "custom" || !Array.isArray(queued.content)) {
				throw new Error("expected retry-drained skill to be queued as image-bearing custom content");
			}
			expect(queued.customType).toBe(SKILL_PROMPT_MESSAGE_TYPE);
			expect(queued.content[1]).toEqual(image);
			expect(fixture.session.messages).toEqual([]);
		} finally {
			await fixture.session.dispose();
			fixture.authStorage.close();
			fixture.tempDir.removeSync();
		}
	});
});

interface SessionFixture {
	tempDir: TempDir;
	authStorage: AuthStorage;
	session: AgentSession;
}

async function createRealSession(): Promise<SessionFixture> {
	const tempDir = TempDir.createSync("@pi-skill-queue-real-");
	const authStorage = await AuthStorage.create(path.join(tempDir.path(), "testauth.db"));
	authStorage.setRuntimeApiKey("anthropic", "test-key");
	const modelRegistry = new ModelRegistry(authStorage);
	const model = getBundledModel("anthropic", "claude-sonnet-4-5");
	if (!model) throw new Error("Expected built-in anthropic model to exist");

	const agent = new Agent({
		initialState: {
			model,
			systemPrompt: ["Test"],
			tools: [],
			messages: [],
		},
	});

	const session = new AgentSession({
		agent,
		sessionManager: SessionManager.inMemory(),
		settings: Settings.isolated(),
		modelRegistry,
	});

	return { tempDir, authStorage, session };
}

function queueCustomSteer(session: AgentSession, chip: string, content = "skill body"): void {
	session.agent.steer({
		role: "custom",
		customType: SKILL_PROMPT_MESSAGE_TYPE,
		content,
		display: true,
		attribution: "user",
		details: {
			name: "foo",
			path: "/s.md",
			args: "bar",
			lineCount: 1,
			__queueChipText: chip,
		} satisfies SkillPromptDetails,
		timestamp: Date.now(),
	});
}

function queueAdvisorSteer(session: AgentSession, note = "consider X"): void {
	session.agent.steer({
		role: "custom",
		customType: "advisor",
		content: `Advisor:\n- [blocker] ${note}`,
		display: true,
		attribution: "agent",
		details: { notes: [{ note, severity: "blocker" }] },
		timestamp: Date.now(),
	});
}

/** Mirror a hidden magic-keyword companion notice (`display:false`, `attribution:"user"`). */
function queueMagicCompanion(session: AgentSession, customType = "ultrathink-notice"): void {
	session.agent.steer({
		role: "custom",
		customType,
		content: "hidden notice",
		display: false,
		attribution: "user",
		details: {},
		timestamp: Date.now(),
	});
}

/** Mirror a steered user prompt (`AgentSession.#queueUserMessage(..., "steer")`). */
function queueUserSteer(session: AgentSession, text: string): void {
	session.agent.steer({
		role: "user",
		content: [{ type: "text", text }],
		steering: true,
		attribution: "user",
		timestamp: Date.now(),
	});
}

describe("AgentSession derived queued custom display", () => {
	let fixture: SessionFixture | undefined;

	afterEach(async () => {
		if (fixture) {
			await fixture.session.dispose();
			fixture.authStorage.close();
			fixture.tempDir.removeSync();
			fixture = undefined;
		}
		vi.restoreAllMocks();
	});

	it("derives queued custom chip text directly from the agent steering queue", async () => {
		fixture = await createRealSession();
		const { session } = fixture;

		queueCustomSteer(session, "/skill:foo bar");

		expect(session.getQueuedMessages().steering).toEqual(["/skill:foo bar"]);
		expect(session.queuedMessageCount).toBe(1);
	});

	it("excludes display-suppressed custom messages from chips/count and never restores them", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		session.agent.steer({
			role: "custom",
			customType: "internal",
			content: "hidden",
			display: false,
			details: { __queueChipText: "hidden" },
			timestamp: Date.now(),
		});

		expect(session.getQueuedMessages().steering).toEqual([]);
		expect(session.queuedMessageCount).toBe(0);
		// Plain Alt+Up dequeue restores nothing AND preserves the hidden steer for the
		// continuing stream — it isn't the user's draft.
		expect(session.clearQueue().steering).toEqual([]);
		expect(session.agent.hasQueuedMessages()).toBe(true);
		// Esc+abort drops it so abort()'s stranded-message drain can't auto-resume the
		// run the user just interrupted (the drain gate is agent.hasQueuedMessages()).
		expect(session.clearQueue({ forInterrupt: true }).steering).toEqual([]);
		expect(session.agent.hasQueuedMessages()).toBe(false);
	});

	it("never restores a visible agent-authored custom steer; preserves on dequeue, drops on interrupt", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		// An IRC aside / extension/hook notice: visible, but agent-authored — editing it
		// makes no sense, so it must not ride the Esc/Alt+Up editor-restore path.
		const steer = () =>
			session.agent.steer({
				role: "custom",
				customType: "irc",
				content: "peer pinged you",
				display: true,
				attribution: "agent",
				details: {},
				timestamp: Date.now(),
			});
		steer();

		expect(session.getQueuedMessages().steering).toEqual([]);
		// popLast leaves the agent steer untouched (not user-restorable)...
		expect(session.popLastQueuedMessage()).toBeUndefined();
		expect(session.agent.peekSteeringQueue()).toHaveLength(1);
		// ...plain dequeue restores nothing but PRESERVES the extension steer (not lost)...
		expect(session.clearQueue().steering).toEqual([]);
		expect(session.agent.peekSteeringQueue()).toHaveLength(1);
		// ...and only Esc+abort drops it (no auto-resume leftover).
		expect(session.clearQueue({ forInterrupt: true }).steering).toEqual([]);
		expect(session.agent.hasQueuedMessages()).toBe(false);
	});

	it("popLastQueuedMessage restores chip text and removes the core queue entry", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueCustomSteer(session, "/skill:foo bar");

		expect(session.popLastQueuedMessage()?.text).toBe("/skill:foo bar");
		expect(session.getQueuedMessages().steering).toEqual([]);
	});

	it("counts a queued advisor card as pending work but keeps it out of chips and restore", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueAdvisorSteer(session, "guard the null path");

		// Advisor cards are real pending work (feeds hasPendingMessages/empty-Enter abort)...
		expect(session.queuedMessageCount).toBe(1);
		// ...but are never editable user input.
		expect(session.getQueuedMessages().steering).toEqual([]);

		// clearQueue must not surface the advisor note for editor restore, and must
		// leave the card queued so the abort/resume path still delivers it.
		const cleared = session.clearQueue();
		expect(cleared.steering).toEqual([]);
		expect(cleared.followUp).toEqual([]);
		expect(session.agent.peekSteeringQueue()).toHaveLength(1);
		expect(session.popLastQueuedMessage()).toBeUndefined();
	});

	it("clearQueue restores user messages but preserves a queued advisor card", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueCustomSteer(session, "/skill:foo bar");
		queueAdvisorSteer(session, "rename the symbol");

		const cleared = session.clearQueue();
		expect(cleared.steering).toEqual([{ text: "/skill:foo bar", images: undefined }]);
		// The advisor card survives in the agent-core queue; the user's message left.
		const remaining = session.agent.peekSteeringQueue();
		expect(remaining).toHaveLength(1);
		expect(remaining[0]).toMatchObject({ customType: "advisor" });
	});

	it("popLastQueuedMessage steps over an advisor card to the user message", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueCustomSteer(session, "/skill:foo bar");
		queueAdvisorSteer(session, "watch the race");

		expect(session.popLastQueuedMessage()?.text).toBe("/skill:foo bar");
		// Advisor card remains queued, not restored.
		const remaining = session.agent.peekSteeringQueue();
		expect(remaining).toHaveLength(1);
		expect(remaining[0]).toMatchObject({ customType: "advisor" });
	});

	it("clearQueue drops a queued magic-keyword companion with its dequeued user prompt", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		// Queue order mirrors prompt("ultrathink do X", { streamingBehavior: "steer" }):
		// the hidden companion notice queues right before the user message.
		queueMagicCompanion(session, "ultrathink-notice");
		queueUserSteer(session, "ultrathink do X");

		// The companion is display:false, so only the user prompt is displayable work.
		expect(session.queuedMessageCount).toBe(1);

		// Alt+Up bulk restore returns the user's text and leaves no orphaned companion.
		const cleared = session.clearQueue();
		expect(cleared.steering).toEqual([{ text: "ultrathink do X", images: undefined }]);
		expect(session.agent.hasQueuedMessages()).toBe(false);
	});

	it("popLastQueuedMessage drops only the popped prompt's preceding companion", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		// [ultrathink-notice, "first", orchestrate-notice, "second"].
		queueMagicCompanion(session, "ultrathink-notice");
		queueUserSteer(session, "first");
		queueMagicCompanion(session, "orchestrate-notice");
		queueUserSteer(session, "second");

		expect(session.popLastQueuedMessage()?.text).toBe("second");
		// Only the popped prompt's companion (orchestrate-notice) leaves; the earlier
		// prompt and its own companion stay intact.
		const remaining = session.agent.peekSteeringQueue();
		expect(remaining.map(m => (m.role === "custom" ? m.customType : m.role))).toEqual(["ultrathink-notice", "user"]);
	});
});

function createStubInteractiveModeContextForUiHelpers(session: AgentSession) {
	let editorText = "";
	const editor: StubEditor = {
		setText(text) {
			editorText = text;
		},
		getText() {
			return editorText;
		},
		getExpandedText() {
			return editorText;
		},
		clearDraft(historyText?: string) {
			if (historyText !== undefined) this.addToHistory(historyText);
			this.setText("");
			this.imageLinks = undefined;
			this.pendingImages = [];
			this.pendingImageLinks = [];
		},
		addToHistory: vi.fn(),
		pendingImages: [] as ImageContent[],
		pendingImageLinks: [] as (string | undefined)[],
	};
	const pendingMessagesContainer = new Container();
	const requestRender = vi.fn();
	const updatePendingMessagesDisplay = vi.fn();

	const ctx = {
		editor,
		ui: { requestRender },
		pendingMessagesContainer,
		session,
		viewSession: session,
		compactionQueuedMessages: [],
		keybindings: {
			getDisplayString: (_action: string) => "Alt+Up",
		},
		updatePendingMessagesDisplay,
		locallySubmittedUserSignatures: new Set<string>(),
	} as unknown as InteractiveModeContext;

	return { ctx, editor, pendingMessagesContainer };
}

describe("UiHelpers / InputController against derived queued custom display", () => {
	let fixture: SessionFixture | undefined;

	beforeEach(async () => {
		const themeInstance = await getThemeByName("dark");
		expect(themeInstance).toBeDefined();
		setThemeInstance(themeInstance!);
	});

	afterEach(async () => {
		if (fixture) {
			await fixture.session.dispose();
			fixture.authStorage.close();
			fixture.tempDir.removeSync();
			fixture = undefined;
		}
		vi.restoreAllMocks();
	});

	it("renders the compact slash form for queued skills", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueCustomSteer(session, "/skill:test-skill arg1 arg2");

		const { ctx, pendingMessagesContainer } = createStubInteractiveModeContextForUiHelpers(session);
		const uiHelpers = new UiHelpers(ctx);
		uiHelpers.updatePendingMessagesDisplay();

		const rendered = Bun.stripANSI(pendingMessagesContainer.render(120).join("\n"));
		expect(rendered).toContain("Steering · 1");
		expect(rendered).toContain("1. /skill:test-skill arg1 arg2");
		expect(rendered).not.toContain("Steer:");
	});

	it("groups yield follow-ups under one heading", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		for (const text of ["inspect types", "run tests", "summarize"]) {
			session.agent.followUp({
				role: "user",
				content: text,
				attribution: "user",
				timestamp: Date.now(),
			});
		}

		const { ctx, pendingMessagesContainer } = createStubInteractiveModeContextForUiHelpers(session);
		new UiHelpers(ctx).updatePendingMessagesDisplay();

		const rendered = Bun.stripANSI(pendingMessagesContainer.render(120).join("\n"));
		expect(rendered).toContain("After yield · 3");
		expect(rendered).toContain("1. inspect types");
		expect(rendered).toContain("2. run tests");
		expect(rendered).toContain("3. summarize");
		expect(rendered).not.toContain("Follow-up:");
	});

	it("restores the compact slash form into the editor and clears the queue", async () => {
		fixture = await createRealSession();
		const { session } = fixture;
		queueCustomSteer(session, "/skill:test-skill arg1 arg2");

		const { ctx, editor } = createStubInteractiveModeContextForUiHelpers(session);
		const controller = new InputController(ctx);
		const count = controller.restoreQueuedMessagesToEditor();

		expect(count).toBe(1);
		expect(editor.getText()).toBe("/skill:test-skill arg1 arg2");
		expect(session.getQueuedMessages()).toEqual({ steering: [], followUp: [] });
	});
});

function createEventControllerFixture() {
	const updatePendingMessagesDisplay = vi.fn();
	const addMessageToChat = vi.fn();
	const requestRender = vi.fn();
	const ctx = {
		isInitialized: true,
		init: vi.fn(async () => {}),
		ui: { requestRender },
		statusLine: { invalidate: vi.fn() },
		updateEditorTopBorder: vi.fn(),
		addMessageToChat,
		updatePendingMessagesDisplay,
		pendingTools: new Map(),
		session: {},
		get viewSession() {
			return (this as typeof ctx).session;
		},
	} as unknown as InteractiveModeContext;

	const controller = new EventController(ctx);
	return { controller, updatePendingMessagesDisplay, addMessageToChat };
}

describe("EventController custom queued-message refresh", () => {
	afterEach(() => {
		vi.restoreAllMocks();
	});

	it("refreshes the pending bar only for custom messages carrying __queueChipText", async () => {
		const { controller, updatePendingMessagesDisplay, addMessageToChat } = createEventControllerFixture();
		const queuedEvent: Extract<AgentSessionEvent, { type: "message_start" }> = {
			type: "message_start",
			message: {
				role: "custom",
				customType: SKILL_PROMPT_MESSAGE_TYPE,
				content: "first",
				display: true,
				details: {
					__queueChipText: "/skill:foo bar",
					name: "foo",
					path: "/s.md",
					args: "bar",
					lineCount: 1,
				} satisfies SkillPromptDetails,
				timestamp: Date.now(),
			},
		};
		await controller.handleEvent(queuedEvent);
		expect(updatePendingMessagesDisplay).toHaveBeenCalledTimes(1);
		expect(addMessageToChat).toHaveBeenCalledTimes(1);

		const unqueuedEvent: Extract<AgentSessionEvent, { type: "message_start" }> = {
			type: "message_start",
			message: {
				role: "custom",
				customType: SKILL_PROMPT_MESSAGE_TYPE,
				content: "second",
				display: true,
				details: undefined,
				timestamp: Date.now() + 1,
			},
		};
		await controller.handleEvent(unqueuedEvent);

		expect(updatePendingMessagesDisplay).toHaveBeenCalledTimes(1);
		expect(addMessageToChat).toHaveBeenCalledTimes(2);
	});
});