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scripts/tui-harness.tsx

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+#!/usr/bin/env bun
+/**
+ * PodTUI LLM-interactive harness — stateless per-turn snapshot bridge.
+ *
+ * Each invocation:
+ *   1. Points XDG_CONFIG_HOME / XDG_DATA_HOME / PODTUI_AUDIO_BACKEND at a
+ *      sandbox dir under .harness so your real ~/.config/podtui is never touched.
+ *   2. Replays the saved action log (.harness/actions.json) from scratch.
+ *   3. Appends + executes the new action passed on the CLI.
+ *   4. Renders, captures structured spans, and prints: plain frame + distinct
+ *      style summary (colors/attrs) + selected store state + captured issues
+ *      (stderr / uncaught rejections). Full structured spans are dumped to
+ *      .harness/last-frame.json every turn.
+ *
+ * Audio is silent (Noop) by default during the snapshot model so replaying the
+ * log each turn doesn't re-trigger real playback. Pass --audio (or set
+ * PODTUI_AUDIO_BACKEND) to flip to a real backend for the new action only.
+ *
+ * Import order mirrors src/index.tsx (lazy) to avoid a NavigationContext cycle.
+ *
+ * Usage:
+ *   bun scripts/tui-harness.tsx init [--size 100x30] [--seed]
+ *   bun scripts/tui-harness.tsx key <key> [mods...]      # mods: ctrl shift meta
+ *   bun scripts/tui-harness.tsx arrow <up|down|left|right> [mods...]
+ *   bun scripts/tui-harness.tsx enter|escape|tab|space|backspace
+ *   bun scripts/tui-harness.tsx type "<text>"
+ *   bun scripts/tui-harness.tsx wait <ms>
+ *   bun scripts/tui-harness.tsx resize <w> <h>
+ *   bun scripts/tui-harness.tsx frame                        # re-render, no new action
+ *   bun scripts/tui-harness.tsx state [all|nav|audio|feed|app]
+ *   bun scripts/tui-harness.tsx actions                      # print action log
+ *   bun scripts/tui-harness.tsx reset
+ *   bun scripts/tui-harness.tsx seed [--from ~/.config/podtui]
+ *
+ * Flags (after the subcommand):
+ *   --size WxH      terminal size (default 100x30)
+ *   --audio         enable real audio backend for the new action only
+ *   --no-settle     skip the extra render-settle loops
+ */
+
+import { testRender } from "@opentui/solid";
+import {
+	existsSync,
+	mkdirSync,
+	cpSync,
+	writeFileSync,
+	readFileSync,
+} from "node:fs";
+import { join } from "node:path";
+
+// ── Paths & sandbox ────────────────────────────────────────────────────────
+const HANDLES_DIR = ".harness";
+const CONFIG_HOME = join(HANDLES_DIR, "config-home");
+const DATA_HOME = join(HANDLES_DIR, "data-home");
+const ACTIONS_FILE = join(HANDLES_DIR, "actions.json");
+const FRAME_JSON = join(HANDLES_DIR, "last-frame.json");
+const FRAME_TXT = join(HANDLES_DIR, "last-frame.txt");
+const STATE_JSON = join(HANDLES_DIR, "state.json");
+
+// Sandbox must be active BEFORE any app module is imported, so the app's
+// config-dir / persistence reads resolve into .harness/*.
+function activateSandbox(): void {
+	mkdirSync(CONFIG_HOME, { recursive: true });
+	mkdirSync(DATA_HOME, { recursive: true });
+	process.env.XDG_CONFIG_HOME = join(process.cwd(), CONFIG_HOME);
+	process.env.XDG_DATA_HOME = join(process.cwd(), DATA_HOME);
+	// Silent audio during replay by default; --audio flips this after import.
+	if (!process.env.PODTUI_AUDIO_BACKEND)
+		process.env.PODTUI_AUDIO_BACKEND = "none";
+}
+
+// ── Action log ─────────────────────────────────────────────────────────────
+type Mod = "ctrl" | "shift" | "meta" | "super" | "hyper";
+type Action =
+	| { t: "key"; k: string; mods?: Mod[] }
+	| { t: "arrow"; d: "up" | "down" | "left" | "right"; mods?: Mod[] }
+	| { t: "enter" | "escape" | "tab" | "space" | "backspace"; mods?: Mod[] }
+	| { t: "type"; s: string }
+	| { t: "wait"; ms: number }
+	| { t: "resize"; w: number; h: number };
+
+function loadActions(): Action[] {
+	try {
+		return JSON.parse(readFileSync(ACTIONS_FILE, "utf8") || "[]");
+	} catch {
+		return [];
+	}
+}
+function saveActions(a: Action[]): void {
+	writeFileSync(ACTIONS_FILE, JSON.stringify(a, null, 2));
+}
+
+// ── Issue capture ──────────────────────────────────────────────────────────
+const issues: string[] = [];
+// Captured by the StateProbe component rendered inside the provider tree —
+// Solid contexts can only be read from within the tree, not from outside.
+let navRef: any = null;
+function captureIssues(): void {
+	const origErr = console.error;
+	const origWarn = console.warn;
+	console.error = (...args: unknown[]) => {
+		issues.push("stderr: " + args.map(String).join(" "));
+		origErr(...(args as any[]));
+	};
+	console.warn = (...args: unknown[]) => {
+		issues.push("warn: " + args.map(String).join(" "));
+		origWarn(...(args as any[]));
+	};
+	process.on("uncaughtException", (e) =>
+		issues.push("uncaught: " + ((e as Error)?.stack || String(e))),
+	);
+	process.on("unhandledRejection", (e) =>
+		issues.push("unhandledRejection: " + ((e as Error)?.stack || String(e))),
+	);
+}
+
+// ── Span rendering ─────────────────────────────────────────────────────────
+type RGBA = { r: number; g: number; b: number; a: number };
+type Span = {
+	text: string;
+	fg: RGBA | null;
+	bg: RGBA | null;
+	attributes: number;
+	width: number;
+};
+
+const ATTR_NAMES: Record<string, number> = {
+	BOLD: 1,
+	DIM: 2,
+	ITALIC: 4,
+	UNDERLINE: 8,
+	BLINK: 16,
+	INVERSE: 32,
+	HIDDEN: 64,
+	STRIKETHROUGH: 128,
+};
+
+function hex(c: RGBA | null): string | null {
+	if (!c) return null;
+	if (c.a === 0) return null; // transparent → "default"
+	const [r, g, b] = [c.r, c.g, c.b].map((v) =>
+		Math.max(0, Math.min(255, Math.round(v))),
+	);
+	return "#" + [r, g, b].map((n) => n.toString(16).padStart(2, "0")).join("");
+}
+
+function attrLabels(attr: number): string[] {
+	const out: string[] = [];
+	for (const [name, bit] of Object.entries(ATTR_NAMES))
+		if (attr & bit) out.push(name.toLowerCase());
+	return out;
+}
+
+// (Plain frame text comes from captureCharFrame instead of span reconstruction.)
+
+function distinctStyles(spans: {
+	lines: { spans: Span[] }[];
+}): { tag: string; sample: string; n: number }[] {
+	const map = new Map<string, { tag: string; sample: string; n: number }>();
+	for (const line of spans.lines) {
+		for (const s of line.spans) {
+			if (!s.text || s.text.trim() === "") continue;
+			const fg = hex(s.fg as any);
+			const bg = hex(s.bg as any);
+			if (!fg && !bg && s.attributes === 0) continue; // default — skip
+			const tags = attrLabels(s.attributes);
+			const tag = `[fg=${fg ?? "·"} bg=${bg ?? "·"}${tags.length ? " " + tags.join("+") : ""}]`;
+			const ex = map.get(tag);
+			const sample = s.text.replace(/\n/g, "\\n").slice(0, 28);
+			if (ex) {
+				ex.n++;
+				if (ex.sample.length < 14 && sample.length > ex.sample.length)
+					ex.sample = sample;
+			} else {
+				map.set(tag, { tag, sample, n: 1 });
+			}
+		}
+	}
+	return [...map.values()].sort((a, b) => b.n - a.n).slice(0, 20);
+}
+
+// ── Arg parsing ────────────────────────────────────────────────────────────
+function parseFlags(rest: string[]): {
+	flags: Record<string, string | boolean>;
+	positional: string[];
+} {
+	const flags: Record<string, string | boolean> = {};
+	const positional: string[] = [];
+	for (let i = 0; i < rest.length; i++) {
+		const a = rest[i];
+		if (a.startsWith("--")) {
+			if (a === "--audio") flags.audio = true;
+			else if (a === "--no-settle") flags["no-settle"] = true;
+			else if (a === "--size") {
+				flags.size = rest[++i];
+				const m = /(\d+)x(\d+)/.exec(String(flags.size));
+				if (m) {
+					flags.w = m[1];
+					flags.h = m[2];
+				}
+			} else if (a === "--from") {
+				flags.from = rest[++i];
+			} else {
+				flags[a.slice(2)] = rest[++i] ?? true;
+			}
+		} else {
+			positional.push(a);
+		}
+	}
+	return { flags, positional };
+}
+
+function parseMods(positional: string[]): Mod[] {
+	const mods: Mod[] = [];
+	for (const p of positional)
+		if (["ctrl", "shift", "meta", "super", "hyper"].includes(p))
+			mods.push(p as Mod);
+	return mods;
+}
+
+function buildAction(cmd: string, positional: string[]): Action | null {
+	const mods = parseMods(positional);
+	const first = positional[0];
+	switch (cmd) {
+		case "key":
+			if (!first) throw new Error("key requires a <key> argument");
+			return { t: "key", k: first, mods: mods.length ? mods : undefined };
+		case "arrow":
+			if (!first || !["up", "down", "left", "right"].includes(first))
+				throw new Error("arrow requires up|down|left|right");
+			return {
+				t: "arrow",
+				d: first as any,
+				mods: mods.length ? mods : undefined,
+			};
+		case "enter":
+		case "escape":
+		case "tab":
+		case "space":
+		case "backspace":
+			return { t: cmd, mods: mods.length ? mods : undefined };
+		case "type":
+			if (first === undefined) throw new Error("type requires <text>");
+			// Re-join the rest in case text had spaces; positional[0] already is first token,
+			// caller should quote. We join all positional as the text.
+			return { t: "type", s: positional.join(" ") };
+		case "wait":
+			if (!first) throw new Error("wait requires <ms>");
+			return { t: "wait", ms: parseInt(first, 10) || 0 };
+		case "resize":
+			if (!first || !positional[1]) throw new Error("resize requires <w> <h>");
+			return {
+				t: "resize",
+				w: parseInt(first, 10) || 100,
+				h: parseInt(positional[1], 10) || 30,
+			};
+		case "frame":
+		case "state":
+		case "reset":
+		case "actions":
+		case "init":
+		case "seed":
+			return null;
+		default:
+			throw new Error(`unknown command: ${cmd}`);
+	}
+}
+
+// ── Execute one action against a mounted setup ──────────────────────────────
+function fmtMods(mods?: Mod[]): Record<string, boolean> | undefined {
+	if (!mods || !mods.length) return undefined;
+	const o: Record<string, boolean> = {};
+	for (const m of mods) o[m] = true;
+	return o;
+}
+
+async function execAction(setup: any, a: Action): Promise<void> {
+	const mi = setup.mockInput;
+	switch (a.t) {
+		case "key":
+			mi.pressKey(a.k, fmtMods(a.mods));
+			break;
+		case "arrow":
+			mi.pressArrow(a.d, fmtMods(a.mods));
+			break;
+		case "enter":
+			mi.pressEnter(fmtMods(a.mods));
+			break;
+		case "escape":
+			mi.pressEscape(fmtMods(a.mods));
+			break;
+		case "tab":
+			mi.pressTab(fmtMods(a.mods));
+			break;
+		case "space":
+			mi.pressKey("space");
+			break;
+		case "backspace":
+			mi.pressBackspace(fmtMods(a.mods));
+			break;
+		case "type":
+			await mi.typeText(a.s, 0);
+			break;
+		case "wait":
+			await new Promise((r) => setTimeout(r, a.ms));
+			break;
+		case "resize":
+			setup.resize(a.w, a.h);
+			break;
+	}
+	await setup.renderOnce();
+	// tiny settle for reactive updates
+	await new Promise((r) => setTimeout(r, 40));
+}
+
+// ── Main ───────────────────────────────────────────────────────────────────
+async function main() {
+	activateSandbox();
+	captureIssues();
+
+	const argv = process.argv.slice(2);
+	const cmd = argv[0] ?? "frame";
+	const { flags, positional } = parseFlags(argv.slice(1));
+
+	// Local-only commands that don't mount.
+	if (cmd === "reset") {
+		saveActions([]);
+		console.log("✔ actions log cleared.");
+		return;
+	}
+	if (cmd === "actions") {
+		const a = loadActions();
+		console.log(`Action log (${a.length}):`);
+		console.log(JSON.stringify(a, null, 2));
+		return;
+	}
+	if (cmd === "seed") {
+		const from = String(
+			flags.from || join(process.env.HOME || "~", ".config", "podtui"),
+		);
+		if (!existsSync(from)) {
+			console.error(`seed source not found: ${from}`);
+			process.exit(1);
+		}
+		const dest = join(process.env.XDG_CONFIG_HOME!, "podtui");
+		cpSync(from, dest, { recursive: true });
+		console.log(`✔ seeded sandbox config from ${from} → ${dest}`);
+		return;
+	}
+
+	// Size settings.
+	let width = 100;
+	let height = 30;
+	if (flags.w) width = parseInt(String(flags.w), 10);
+	if (flags.h) height = parseInt(String(flags.h), 10);
+
+	let newAction: Action | null = null;
+	let actions: Action[] = [];
+	if (cmd !== "init" && cmd !== "frame" && cmd !== "state") {
+		newAction = buildAction(cmd, positional);
+	}
+	if (cmd === "init") {
+		saveActions([]);
+		actions = [];
+	} else {
+		actions = loadActions();
+	}
+
+	// Mount the real app. Lazy imports (order matters — see NavigationContext cycle).
+	const { App } = await import("../src/App");
+	const { ThemeProvider } = await import("../src/context/ThemeContext");
+	const toast = await import("../src/ui/toast");
+	const { KeybindProvider } = await import("../src/context/KeybindContext");
+	const { NavigationProvider, useNavigation } = await import(
+		"../src/context/NavigationContext"
+	);
+	const { DialogProvider } = await import("../src/ui/dialog");
+	const { CommandProvider } = await import("../src/ui/command");
+
+	// Probe rendered inside the provider tree so context hooks resolve.
+	const StateProbe = () => {
+		try {
+			navRef = useNavigation();
+		} catch (e) {
+			issues.push("StateProbe: " + String(e));
+		}
+		return null;
+	};
+
+	const HarnessRoot = () => (
+		<toast.ToastProvider>
+			<ThemeProvider mode="dark">
+				<KeybindProvider>
+					<NavigationProvider>
+						<StateProbe />
+						<DialogProvider>
+							<CommandProvider>
+								<App />
+								<toast.Toast />
+							</CommandProvider>
+						</DialogProvider>
+					</NavigationProvider>
+				</KeybindProvider>
+			</ThemeProvider>
+		</toast.ToastProvider>
+	);
+
+	const setup = await testRender(() => <HarnessRoot />, {
+		width,
+		height,
+		useThread: false,
+	});
+	(setup.renderer as any).disableStdoutInterception?.();
+
+	// Wait for providers (keybinds/theme/feeds) to settle.
+	const settleLoops = flags["no-settle"] ? 2 : 12;
+	for (let i = 0; i < settleLoops; i++) {
+		await setup.renderOnce();
+		await new Promise((r) => setTimeout(r, 60));
+	}
+
+	// Replay history silently (audio already Noop via env).
+	for (const a of actions) await execAction(setup, a);
+
+	// For the *new* action: if --audio, flip to a real backend just for it.
+	let audioControls: any = null;
+	try {
+		const { useAudio } = await import("../src/hooks/useAudio");
+		audioControls = useAudio();
+	} catch (e) {
+		issues.push("useAudio import: " + String(e));
+	}
+	if (newAction) {
+		if (flags.audio && audioControls?.switchBackend) {
+			// Re-detect: clear env so detection picks the best real backend.
+			delete process.env.PODTUI_AUDIO_BACKEND;
+			// Force (re)creation of a real backend; useAudio caches, switchBackend resets.
+			await audioControls.switchBackend("mpv").catch(() => {});
+			if (
+				!audioControls.backendName() ||
+				audioControls.backendName() === "none"
+			) {
+				await audioControls.switchBackend("afplay").catch(() => {});
+			}
+		}
+		actions.push(newAction);
+		saveActions(actions);
+		await execAction(setup, newAction);
+	}
+
+	// Final settle + capture.
+	await setup.renderOnce();
+	await new Promise((r) => setTimeout(r, 60));
+	const spans = setup.captureSpans() as {
+		lines: { spans: Span[] }[];
+		cols: number;
+		rows: number;
+		cursor: [number, number];
+	};
+	const plainFrame = setup.captureCharFrame();
+
+	// Dump structured spans + plain frame.
+	try {
+		writeFileSync(FRAME_JSON, JSON.stringify(spans));
+		writeFileSync(FRAME_TXT, plainFrame);
+	} catch {}
+
+	// Store state snapshot.
+	const state: Record<string, unknown> = {};
+	try {
+		const nav = navRef;
+		if (nav) {
+			state.nav = {
+				activeTab: nav.activeTab?.(),
+				activeDepth: nav.activeDepth?.(),
+				inputFocused: nav.inputFocused?.(),
+				ready: nav.ready,
+			};
+		} else {
+			state.nav = "NAV_REF not captured (probe did not run)";
+		}
+	} catch (e) {
+		state.nav = "ERR: " + String(e);
+	}
+	try {
+		if (audioControls) {
+			state.audio = {
+				backend: audioControls.backendName ? audioControls.backendName() : null,
+				playing: audioControls.isPlaying ? audioControls.isPlaying() : null,
+				position: audioControls.position ? audioControls.position() : null,
+				duration: audioControls.duration ? audioControls.duration() : null,
+				volume: audioControls.volume ? audioControls.volume() : null,
+				error: audioControls.error ? audioControls.error() : null,
+				currentEpisodeTitle: audioControls.currentEpisode
+					? audioControls.currentEpisode()?.title
+					: null,
+			};
+		}
+	} catch (e) {
+		state.audio = "ERR: " + String(e);
+	}
+	try {
+		const { useFeedStore } = await import("../src/stores/feed");
+		const fs_ = useFeedStore();
+		const feeds = fs_.feeds ? fs_.feeds() : [];
+		state.feed = {
+			count: feeds?.length ?? 0,
+			selectedFeedId: fs_.selectedFeedId ? fs_.selectedFeedId() : null,
+			isLoadingFeeds: fs_.isLoadingFeeds ? fs_.isLoadingFeeds() : null,
+			titles: (feeds ?? []).slice(0, 8).map((f: any) => f?.podcast?.title),
+		};
+	} catch (e) {
+		state.feed = "ERR: " + String(e);
+	}
+	try {
+		writeFileSync(STATE_JSON, JSON.stringify(state, null, 2));
+	} catch {}
+
+	// ── Output ───────────────────────────────────────────────────────────────
+	const scope = cmd === "state" ? String(positional[0] || "all") : "all";
+	console.log(
+		`\n=== FRAME ${spans.cols}x${spans.rows} (cursor ${spans.cursor[0]},${spans.cursor[1]}) | actions=${actions.length} | ${cmd} ===`,
+	);
+	console.log(plainFrame);
+
+	if (scope === "all") {
+		const styles = distinctStyles(spans);
+		if (styles.length) {
+			console.log("--- distinct styles (sample) ---");
+			for (const s of styles) console.log(`  ${s.tag}  ×${s.n}  “${s.sample}”`);
+		}
+	}
+
+	// State subset.
+	const want = (k: string) => scope === "all" || scope === k;
+	if (want("nav"))
+		console.log("--- nav ---\n" + JSON.stringify(state.nav, null, 2));
+	if (want("audio"))
+		console.log("--- audio ---\n" + JSON.stringify(state.audio, null, 2));
+	if (want("feed"))
+		console.log("--- feed ---\n" + JSON.stringify(state.feed, null, 2));
+	if (want("app"))
+		console.log("--- app ---\n(src/stores/app.ts not dumped in v1)");
+
+	if (issues.length) {
+		console.log("--- issues (" + issues.length + ") ---");
+		for (const i of issues.slice(0, 40)) console.log("  ! " + i);
+	} else {
+		console.log("--- issues: none ---");
+	}
+
+	console.log(
+		`\n(spans→ ${FRAME_JSON} | frame→ ${FRAME_TXT} | state→ ${STATE_JSON})`,
+	);
+
+	// Tear down child processes (audio backend) before exit to avoid orphans.
+	try {
+		if (audioControls?.stop) await audioControls.stop().catch(() => {});
+	} catch (e) {
+		issues.push("teardown audio: " + String(e));
+	}
+	try {
+		setup.renderer.destroy();
+	} catch (e) {
+		issues.push("teardown renderer: " + String(e));
+	}
+	process.exit(0);
+}
+
+main().catch((err) => {
+	console.error("HARNESS FAILED:", err?.stack || err);
+	process.exit(1);
+});