import { sineWav } from '../lib/audio.mjs';
import { authHeaders, SESSION_COOKIE, sessionToken } from '../lib/auth.mjs';
import { uploadSound } from '../lib/projects.mjs';

/** The tokens this step makes; a run that died halfway leaves them for the next to revoke. */
const TOKEN_NAME = 'e2e 71';
const TOOLS = [
  'get_view',
  'screenshot',
  'list_assets',
  'list_files',
  'get_asset',
  'get_graph',
  'lint_graph',
  'catalog',
  'run_commands',
  'open',
  'select',
  'play',
  'play_input',
  'get_runtime',
  'undo',
  'redo',
];

/**
 * An agent in the editor over the MCP relay (#429): a token from the account menu's dialog, the
 * agent switched on there, and an MCP client that reads what the user sees – the tab, the
 * selection, a screenshot – and hears when it changes. It builds a walking object in one call,
 * plays it, and one Ctrl+Z of the user takes it all back; deleting waits for the user's answer.
 * Switched off at the badge, the agent gets no further.
 *
 * In CI the relay stands in front of the PHP server on a port of its own (`FEUERWERK_MCP_BASE_URL`,
 * see tools/ci/serve.sh); on stein2 nginx serves it beside the editor.
 */
export async function mcp(t) {
  const { check, json, sleep, waitUntil, settle, press, locate, click, cdp, baseUrl, projectId } = t;
  const { clickText, menuTicked, exceptions, navigate, shot, holdKey, entity, evaluate } = t;
  const site = process.env.FEUERWERK_MCP_BASE_URL ?? baseUrl;
  const endpoint = `${site}mcp`;

  const api = async (method, route, body) =>
    fetch(`${baseUrl}api/index.php?r=${route}`, {
      method,
      headers: { ...(await authHeaders(baseUrl)), 'Content-Type': 'application/json' },
      body: body === undefined ? undefined : JSON.stringify(body),
      signal: AbortSignal.timeout(20_000),
    });
  const sweep = async () => {
    for (const token of await (await api('GET', 'agent-tokens')).json()) {
      if (token.name.startsWith(TOKEN_NAME)) await api('DELETE', `agent-tokens/${token.id}`);
    }
  };

  let token = '';
  let session = '';
  const rpc = async (method, params = {}, as = token) => {
    const res = await fetch(endpoint, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        Accept: 'application/json, text/event-stream',
        Authorization: `Bearer ${as}`,
        ...(session ? { 'Mcp-Session-Id': session } : {}),
      },
      body: JSON.stringify({ jsonrpc: '2.0', id: 1, method, params }),
      signal: AbortSignal.timeout(40_000),
    });
    const text = await res.text();
    return {
      status: res.status,
      session: res.headers.get('mcp-session-id'),
      body: text ? JSON.parse(text) : null,
    };
  };
  const callTool = async (name, args = {}) =>
    (await rpc('tools/call', { name, arguments: args })).body?.result;
  const viewNow = async () => (await callTool('get_view'))?.structuredContent;
  const openAccountMenu = async () => {
    await clickText('Account');
    await sleep(200);
  };

  await sweep();
  let stream = null;
  try {
    if (site !== baseUrl) {
      await cdp.send('Network.setCookie', {
        name: SESSION_COOKIE,
        value: await sessionToken(baseUrl),
        url: site,
      });
      await cdp.send('Page.navigate', { url: `${site}?project=${projectId}` });
      await waitUntil('Boolean(window.__gm?.state?.project?.id)', {
        timeout: 20000,
        label: 'the editor behind the relay',
      });
      await sleep(1000);
    }

    // 71a. The account menu has the switch and the tokens; the dialog makes a token and shows it once,
    // with the line for Claude Code.
    await openAccountMenu();
    const menu = await menuTicked();
    await clickText('Agent tokens…');
    await waitUntil('__gm.agentTokens() !== null', { label: 'the token dialog is open' });
    await t.typeText(TOKEN_NAME);
    await press('Enter');
    await waitUntil('__gm.agentTokens()?.made != null', { label: 'the dialog shows the new token' });
    const dialog = await json('__gm.agentTokens()');
    token = dialog.made;
    await shot('71-agent-tokens');
    await press('Escape');
    await settle();
    const listed = await (await api('GET', 'agent-tokens')).json();
    check(
      'the account menu switches the agent and opens the tokens; a token made there is shown once with the Claude Code line',
      menu.some((row) => row?.label === 'Agent' && row.ticked === false) &&
        menu.some((row) => row?.label === 'Agent tokens…') &&
        /^fwa_[0-9a-f]{64}$/.test(token) &&
        dialog.tokens.includes(TOKEN_NAME) &&
        dialog.command ===
          `claude mcp add --transport http feuerwerk ${endpoint} --header "Authorization: Bearer ${token}"` &&
        listed.some((row) => row.name === TOKEN_NAME && row.token === undefined),
      JSON.stringify({
        menu,
        dialog: { ...dialog, made: Boolean(dialog.made), command: dialog.command?.slice(0, 60) },
      }),
    );

    // 71b. Before the switch, the agent hears there is no editor.
    const init = await rpc('initialize', {
      protocolVersion: '2025-06-18',
      capabilities: {},
      clientInfo: { name: 'e2e' },
    });
    session = init.session ?? '';
    const tools = (await rpc('tools/list')).body?.result?.tools.map((tool) => tool.name);
    const lonely = await callTool('get_view');
    check(
      'an agent with the token starts a session, lists its tools, and hears no editor is on',
      init.status === 200 &&
        init.body?.result?.serverInfo?.name === 'feuerwerk' &&
        JSON.stringify(tools) === JSON.stringify(TOOLS) &&
        lonely?.isError === true &&
        /No Feuerwerk editor is connected/.test(lonely.content[0].text),
      JSON.stringify({ status: init.status, tools, lonely }),
    );

    // 71c. Switched on in the menu, the tab gets onto the relay; the badge counts the agent.
    await openAccountMenu();
    await clickText('Agent');
    await waitUntil('__gm.agent().status === "on"', { timeout: 15000, label: 'the agent link is on' });
    await waitUntil('__gm.agent().badge === "Agent · 1"', {
      timeout: 5000,
      label: 'the badge counts the agent',
    });
    await openAccountMenu();
    const ticked = (await menuTicked()).find((row) => row?.label === 'Agent')?.ticked;
    await press('Escape');
    const agent = await json('__gm.agent()');
    check(
      'switched on in the account menu, the tab is on the relay and the badge says one agent is connected',
      agent.status === 'on' && agent.badge === 'Agent · 1' && ticked === true,
      JSON.stringify({ agent: { ...agent, view: undefined }, ticked }),
    );

    // 71d. get_view is what the tab shows.
    await t.evaluate('__gm.showTab("scene")');
    await settle();
    const scene = await viewNow();
    check(
      'get_view names the project and the tab the user sees',
      scene?.project?.id === projectId && scene?.tab?.id === 'scene' && scene.play === 'editing',
      JSON.stringify(scene),
    );

    // 71e. Subscribed, the agent hears when the user switches the tab, and get_view follows it.
    await rpc('resources/subscribe', { uri: 'feuerwerk://view' });
    const events = await fetch(endpoint, {
      headers: { Authorization: `Bearer ${token}`, 'Mcp-Session-Id': session, Accept: 'text/event-stream' },
    });
    stream = events.body.getReader();
    const heard = (async () => {
      let text = '';
      const until = Date.now() + 10_000;
      while (!text.includes('notifications/resources/updated') && Date.now() < until) {
        const { value, done } = await stream.read();
        if (done) break;
        text += new TextDecoder().decode(value);
      }
      return text;
    })();
    await clickText('Game');
    await settle();
    const note = await heard;
    const game = await viewNow();
    check(
      'a tab switched by the user reaches the subscribed agent, and get_view says the Game tab',
      note.includes('"uri":"feuerwerk://view"') &&
        game?.tab?.id === 'game' &&
        (await json('__gm.tab()')) === 'game',
      JSON.stringify({ note: note.slice(-160), tab: game?.tab }),
    );

    // 71f. The screenshot is the editor as drawn, scaled to the width asked for; an agent that has
    // not looked since the user moved on is told so with it.
    await t.evaluate('__gm.showTab("scene")');
    await settle();
    await sleep(800);
    const shownTab = await json('__gm.tab()');
    const picture = await callTool('screenshot', { maxWidth: 640 });
    const png = Buffer.from(picture?.content?.[0]?.data ?? '', 'base64');
    const width = png.length > 24 ? png.readUInt32BE(16) : 0;
    const height = png.length > 24 ? png.readUInt32BE(20) : 0;
    const canvas = await json('({ w: __gm.app.canvas.width, h: __gm.app.canvas.height })');
    const told =
      picture?.content?.find((item) => item.type === 'text' && item.text.includes('has changed'))?.text ?? '';
    check(
      'screenshot answers a PNG of the editor at the width asked for, and tells the agent the view changed',
      png.subarray(1, 4).toString() === 'PNG' &&
        width === 640 &&
        Math.abs(height - Math.round((canvas.h * 640) / canvas.w)) <= 1 &&
        told.includes('tab Scene'),
      JSON.stringify({ shownTab, width, height, canvas, bytes: png.length, told }),
    );

    // 71g. One call builds an object that walks left while the left arrow is held: a sprite, a behavior
    // placed under it, three nodes and three edges, as one undo step.
    const sceneId = await json('__gm.state.sceneToPlay()?.id');
    const assetsBefore = await json('JSON.stringify(__gm.state.project.assets)');
    const built = await callTool('run_commands', {
      label: 'walk left',
      steps: [
        { command: 'create_asset', args: { type: 'sprite', name: `${TOKEN_NAME} hero` }, as: 'hero' },
        { command: 'create_asset', args: { type: 'behavior', name: `${TOKEN_NAME} walk` }, as: 'walk' },
        { command: 'place_asset', args: { in: sceneId, asset: '$hero', x: 0, y: 0 }, as: 'player' },
        { command: 'place_asset', args: { in: sceneId, asset: '$walk', x: 0, y: 0, parent: '$player' } },
        {
          command: 'add_node',
          args: { asset: '$walk', node: 'OnKeyHeld', params: { key: 'ArrowLeft' } },
          as: 'key',
        },
        { command: 'add_node', args: { asset: '$walk', node: 'Move', params: { dx: -300 } }, as: 'move' },
        { command: 'add_node', args: { asset: '$walk', node: 'Owner' }, as: 'owner' },
        ...[
          ['$key', 'exec', 'exec'],
          ['$key', 'dt', 'dt'],
          ['$owner', 'object', 'object'],
        ].map(([node, from, to]) => ({
          command: 'connect',
          args: { asset: '$walk', from: { node, port: from }, to: { node: '$move', port: to } },
        })),
      ],
    });
    const made = built?.structuredContent?.made ?? [];
    const walkId = made.find((entry) => entry.step === 2)?.id;
    const playerId = made.find((entry) => entry.step === 3)?.id;
    const graph = walkId ? (await callTool('get_graph', { asset: walkId }))?.structuredContent : null;
    check(
      'run_commands builds a sprite with a walking behavior in one call, one undo step named by the agent',
      built?.isError === false &&
        (await json('__gm.state.commands.undoLabel')) === 'Agent: walk left' &&
        graph?.nodes?.map((node) => node.type).join() === 'OnKeyHeld,Move,Owner' &&
        graph.edges.length === 3,
      JSON.stringify({ built: built?.content?.[0]?.text?.slice(0, 300), graph: graph?.edges?.length }),
    );

    // 71g1. The editor follows the agent: the user sees the graph it built, its nodes selected.
    await settle();
    const followed = await viewNow();
    check(
      'the editor follows the agent: the behavior it built is the open tab, with its three nodes selected',
      followed?.document?.asset?.id === walkId &&
        followed.selection?.kind === 'node' &&
        followed.selection.in?.id === walkId &&
        followed.selection.nodes?.length === 3,
      JSON.stringify({ document: followed?.document, selection: followed?.selection }),
    );

    // 71g2. The nodes the agent gave no place come out arranged, as the drawn nodes measure.
    const lint = walkId ? (await callTool('lint_graph', { asset: walkId }))?.structuredContent : null;
    check(
      'the agent’s nodes are arranged: no overlaps, no link over a node, none backwards',
      lint?.nodes === 3 && lint.overlaps === 0 && lint.throughNodes === 0 && lint.backwards === 0,
      JSON.stringify(lint),
    );

    // 71g3. Arrange in the graph's header puts a tangle right again, as one step of the user's own.
    await callTool('open', { asset: walkId });
    const [keyNode, moveNode] = graph.nodes;
    await callTool('run_commands', {
      label: 'tangle',
      steps: [
        {
          command: 'move_node',
          args: { asset: walkId, node: moveNode.id, x: keyNode.x - 400, y: keyNode.y + 300 },
        },
      ],
    });
    await settle();
    const tangled = (await callTool('lint_graph', { asset: walkId }))?.structuredContent;
    await clickText('Arrange');
    await settle();
    const tidied = (await callTool('lint_graph', { asset: walkId }))?.structuredContent;
    const arrangedLabel = await json('__gm.state.commands.undoLabel');
    await press('z', { ctrl: true });
    await settle();
    const backTo = (await callTool('lint_graph', { asset: walkId }))?.structuredContent;
    await callTool('undo');
    check(
      'Arrange in the header turns the links forward again in one undo step, and Ctrl+Z brings the tangle back',
      tangled?.backwards > 0 &&
        tidied?.backwards === 0 &&
        tidied.overlaps === 0 &&
        arrangedLabel === 'Arrange nodes' &&
        backTo?.backwards === tangled.backwards &&
        (await json('__gm.state.commands.undoLabel')) === 'Agent: walk left',
      JSON.stringify({ tangled, tidied, arrangedLabel, backTo }),
    );

    // 71g4. In a graph tab that is open already, the camera goes after a node added far to one side,
    // keeping its zoom: the user sees it rather than a selection out of sight.
    const zoomBefore = await json('__gm.graph.zoom()');
    const far = await callTool('run_commands', {
      label: 'far node',
      steps: [
        { command: 'add_node', args: { asset: walkId, node: 'Owner', x: keyNode.x + 3000, y: keyNode.y } },
      ],
    });
    const farId = far?.structuredContent?.made?.[0]?.id;
    const inSight = `(() => {
      const node = __gm.graph.nodeRect(${JSON.stringify(farId)});
      const view = __gm.graph.canvasRect();
      return Boolean(node) && node.x >= view.x && node.x + node.w <= view.x + view.w &&
        node.y >= view.y && node.y + node.h <= view.y + view.h;
    })()`;
    const revealed = await waitUntil(inSight, { timeout: 3000, label: 'the far node in sight' }).then(
      () => true,
      () => false,
    );
    const farView = await json(
      `({ node: __gm.graph.nodeRect(${JSON.stringify(farId)}), view: __gm.graph.canvasRect(), zoom: __gm.graph.zoom() })`,
    );
    await callTool('undo');
    check(
      'the open graph tab moves its camera to a node the agent added far away, at the same zoom',
      revealed && farView.zoom === zoomBefore,
      JSON.stringify({ zoomBefore, ...farView }),
    );

    // 71g5. Past nodes and edges (#429 stage 5a): a Variables node reads a variable once add_port names it,
    // and a group made in the same call frames every node as drawn, the one the call arranged among them.
    const gathered = await callTool('run_commands', {
      label: 'speed in a group',
      steps: [
        { command: 'add_variable', args: { asset: walkId, key: 'speed', kind: 'number' } },
        { command: 'add_node', args: { asset: walkId, node: 'Variables' }, as: 'vars' },
        { command: 'add_port', args: { asset: walkId, node: '$vars', key: 'speed' } },
        {
          command: 'add_group',
          args: { asset: walkId, nodes: [...graph.nodes.map((node) => node.id), '$vars'], title: 'Walk' },
        },
      ],
    });
    await settle();
    const groupId = gathered?.structuredContent?.made?.find((entry) => entry.step === 4)?.id;
    const varsId = gathered?.structuredContent?.made?.find((entry) => entry.step === 2)?.id;
    const framing = await json(`(() => {
      const box = __gm.graph.annotationRect(${JSON.stringify(groupId)});
      const ids = ${JSON.stringify([...graph.nodes.map((node) => node.id), varsId])};
      const nodes = ids.map((id) => __gm.graph.nodeRect(id));
      const inside = Boolean(box) && nodes.every((n) => n && n.x > box.x && n.y > box.y &&
        n.x + n.w < box.x + box.w && n.y + n.h < box.y + box.h);
      return { box, nodes, inside };
    })()`);
    const readVars = (await callTool('get_graph', { asset: walkId }))?.structuredContent?.nodes?.find(
      (node) => node.id === varsId,
    );
    const gatheredLint = (await callTool('lint_graph', { asset: walkId }))?.structuredContent;
    await callTool('undo');
    check(
      'add_port names a variable on a Variables node, and add_group frames every drawn node of the call',
      gathered?.isError === false &&
        framing.inside &&
        readVars?.outputs?.some((port) => port.key === 'speed' && port.type === 'number') &&
        gatheredLint?.overlaps === 0,
      JSON.stringify({ text: gathered?.content?.[0]?.text?.slice(0, 300), framing, readVars, gatheredLint }),
    );

    // 71g6. Past graphs (#429 stage 5b): an animation keyed by the agent comes up in its own tab.
    const heroId = made.find((entry) => entry.step === 1)?.id;
    const animated = await callTool('run_commands', {
      label: 'slide',
      steps: [
        { command: 'create_asset', args: { type: 'animation', name: `${TOKEN_NAME} slide` }, as: 'anim' },
        { command: 'set_animation_root', args: { asset: '$anim', root: heroId } },
        { command: 'add_animation_track', args: { asset: '$anim', target: '', property: 'x' }, as: 'row' },
        { command: 'set_animation_key', args: { asset: '$anim', track: '$row', frame: 0, value: 0 } },
        { command: 'set_animation_key', args: { asset: '$anim', track: '$row', frame: 30, value: 120 } },
      ],
    });
    await settle();
    const animId = animated?.structuredContent?.made?.find((entry) => entry.step === 1)?.id;
    const animView = await viewNow();
    const animRead = animId ? (await callTool('get_asset', { asset: animId }))?.structuredContent : null;
    await callTool('undo');
    await callTool('open', { asset: walkId });
    await settle();
    check(
      'an animation the agent keys comes up in its tab, and get_asset names the root among its targets',
      animated?.isError === false &&
        animView?.document?.asset?.id === animId &&
        animRead?.tracks?.[0]?.keys?.length === 2 &&
        animRead?.targets?.[0]?.properties?.some((property) => property.key === 'x'),
      JSON.stringify({
        text: animated?.content?.[0]?.text?.slice(0, 300),
        document: animView?.document,
        targets: animRead?.targets?.length,
      }),
    );

    // 71g7. Drawing (#429 stage 5c): pixel art the agent paints comes up in its tab, reads back as rows,
    //       and its cel reaches the server when the project is saved.
    const painted = await callTool('run_commands', {
      label: 'paint',
      steps: [
        { command: 'create_asset', args: { type: 'pixelart', name: `${TOKEN_NAME} pixels` }, as: 'art' },
        { command: 'resize_pixel_canvas', args: { asset: '$art', width: 4, height: 3 } },
        {
          command: 'paint_pixels',
          args: { asset: '$art', draws: [{ draw: 'rows', rows: ['8..8', '.88.', '8..8'] }] },
        },
      ],
    });
    await settle();
    const artId = painted?.structuredContent?.made?.find((entry) => entry.step === 1)?.id;
    const artView = await viewNow();
    const artRead = artId ? (await callTool('get_asset', { asset: artId }))?.structuredContent : null;
    const artRows = artRead ? Object.values(artRead.frames?.[0]?.layers ?? {})[0] : null;
    await waitUntil('__gm.state.saveStatus === "saved"', { timeout: 10000, label: 'saved' }).catch(() => {});
    const celFiles = artId
      ? await json(
          `Object.values(__gm.state.project.assets.find((a) => a.id === ${JSON.stringify(artId)}).frames[0].cels)`,
        )
      : [];
    const celStatus = celFiles[0]
      ? Number(await evaluate(`fetch('/feuerwerk/data/pixels/${celFiles[0]}').then((r) => String(r.status))`))
      : null;
    await callTool('undo');
    await callTool('open', { asset: walkId });
    await settle();
    check(
      'pixel art the agent paints comes up in its tab, reads back as rows, and its cel is saved to the server',
      painted?.isError === false &&
        artView?.document?.asset?.id === artId &&
        JSON.stringify(artRows) === JSON.stringify(['8..8', '.88.', '8..8']) &&
        celFiles.length === 1 &&
        celStatus === 200,
      JSON.stringify({
        text: painted?.content?.[0]?.text?.slice(0, 300),
        document: artView?.document,
        artRows,
        celFiles,
        celStatus,
      }),
    );

    // 71g8. Music and compositions (#429 stage 5d): notes the agent writes, and the pattern and the
    //       sprite laid on a composition, which comes up in its tab.
    const composed = await callTool('run_commands', {
      label: 'compose',
      steps: [
        { command: 'create_asset', args: { type: 'pattern', name: `${TOKEN_NAME} riff` }, as: 'riff' },
        {
          command: 'add_notes',
          args: {
            asset: '$riff',
            notes: [
              { tick: 0, length: 480, note: 'C4' },
              { tick: 480, length: 480, note: 'E4' },
            ],
          },
        },
        { command: 'create_asset', args: { type: 'composition', name: `${TOKEN_NAME} cut` }, as: 'cut' },
        { command: 'add_composition_track', args: { asset: '$cut', name: 'Music' }, as: 'music' },
        {
          command: 'add_composition_item',
          args: { asset: '$cut', track: '$music', place: '$riff', start: 0 },
        },
        {
          command: 'add_composition_item',
          args: { asset: '$cut', track: '$music', place: heroId, start: 30 },
        },
      ],
    });
    await settle();
    const composedMade = composed?.structuredContent?.made ?? [];
    const riffId = composedMade.find((entry) => entry.step === 1)?.id;
    const cutId = composedMade.find((entry) => entry.step === 3)?.id;
    const cutView = await viewNow();
    const riffRead = riffId ? (await callTool('get_asset', { asset: riffId }))?.structuredContent : null;
    const cutRead = cutId ? (await callTool('get_asset', { asset: cutId }))?.structuredContent : null;
    await callTool('undo');
    await callTool('open', { asset: walkId });
    await settle();
    check(
      'notes the agent writes read back by name, and a pattern and a sprite it lays on a composition open in its tab',
      composed?.isError === false &&
        cutView?.document?.asset?.id === cutId &&
        JSON.stringify(riffRead?.notes?.map((note) => note.name)) === '["C4","E4"]' &&
        JSON.stringify(cutRead?.items?.map((item) => [item.start, item.length])) === '[[0,480],[30,180]]' &&
        cutRead?.objects?.length === 1,
      JSON.stringify({
        text: composed?.content?.[0]?.text?.slice(0, 300),
        document: cutView?.document,
        notes: riffRead?.notes,
        items: cutRead?.items,
      }),
    );

    // 71g9. Files the server holds (#431), an instrument preset (#432) and what uses an asset (#433):
    //       a sound uploaded by the user is listed and made an asset nothing uses yet.
    const wavName = `${TOKEN_NAME} blip.wav`;
    const wav = await uploadSound(baseUrl, sineWav(0.2, 660), wavName);
    const filesListed =
      (await callTool('list_files', { type: 'sound', query: TOKEN_NAME }))?.structuredContent?.files ?? [];
    const filed = await callTool('run_commands', {
      label: 'file and preset',
      steps: [
        { command: 'add_file_asset', args: { type: 'sound', file: wav.file }, as: 'blip' },
        { command: 'create_asset', args: { type: 'instrument', name: `${TOKEN_NAME} keys` }, as: 'keys' },
        { command: 'apply_preset', args: { asset: '$keys', preset: 'squareLead' } },
      ],
    });
    await settle();
    const filedMade = filed?.structuredContent?.made ?? [];
    const blipId = filedMade.find((entry) => entry.step === 1)?.id;
    const keysId = filedMade.find((entry) => entry.step === 2)?.id;
    const keysGraph = keysId ? (await callTool('get_graph', { asset: keysId }))?.structuredContent : null;
    const blipRead = blipId ? (await callTool('get_asset', { asset: blipId }))?.structuredContent : null;
    const listedAgain =
      (await callTool('list_files', { type: 'sound', query: TOKEN_NAME }))?.structuredContent?.files ?? [];
    await callTool('undo');
    await settle();
    check(
      'a sound the server holds is listed, made an asset and nothing uses it yet; a preset fills an instrument',
      filesListed.some((file) => file.file === wav.file && file.name === wavName && !file.asset) &&
        filed?.isError === false &&
        blipRead?.file === wav.file &&
        JSON.stringify(blipRead?.usedBy) === '[]' &&
        listedAgain.find((file) => file.file === wav.file)?.asset?.id === blipId &&
        keysGraph?.nodes?.some((node) => node.type === 'InstrumentChip') === true &&
        !(await json('__gm.state.project.assets.map((a) => a.id)')).includes(blipId),
      JSON.stringify({
        listed: filesListed,
        text: filed?.content?.[0]?.text?.slice(0, 300),
        usedBy: blipRead?.usedBy,
        nodes: keysGraph?.nodes?.map((node) => node.type),
      }),
    );

    // 71h. Played by the agent, the object walks left while the user holds the arrow.
    const started = await callTool('play', { action: 'play' });
    await waitUntil('__gm.state.mode === "play"', { timeout: 10000, label: 'the game runs' });
    await sleep(300);
    const x0 = (await entity(playerId))?.x;
    await holdKey('ArrowLeft', 400);
    const x1 = (await entity(playerId))?.x;

    // 71h2. The agent plays the game itself: it holds the arrow, clicks the object and reads where it went.
    const played = await callTool('play_input', {
      steps: [
        { key: 'ArrowLeft', hold: 0.5 },
        { mouse: 'click', at: { object: playerId } },
      ],
    });
    const runtime = (await callTool('get_runtime', { objects: [playerId] }))?.structuredContent;
    const x2 = runtime?.objects?.[0]?.x;
    check(
      'the agent holds a key and clicks in the running game, and get_runtime reads the object walking',
      played?.isError === false &&
        played.structuredContent?.seconds >= 0.5 &&
        played.structuredContent.held?.length === 0 &&
        played.structuredContent.hits?.[0]?.hit === true &&
        x2 < x1 - 100 &&
        x2 > x1 - 200,
      JSON.stringify({
        played: played?.structuredContent ?? played?.content,
        x1,
        x2,
        camera: runtime?.camera,
      }),
    );
    const stopped = await callTool('play', { action: 'stop' });
    await waitUntil('__gm.state.mode === "edit"', { label: 'the game stopped' });
    check(
      'play started by the agent runs its behavior: the object walks left while ArrowLeft is held',
      started?.isError === false && stopped?.isError === false && x0 === 0 && x1 < -40,
      JSON.stringify({ started: started?.content, x0, x1 }),
    );

    // 71h3. A moment of the game (#435): play with until holds it at that game time exactly, resume
    // with until goes on to the next, and a last pause step holds it at the end of a wait, not a
    // frame beyond (the game runs between two calls, so the wait is what is exact there).
    const atHalf = await callTool('play', { action: 'play', until: 0.505 });
    const halfInfo = await json('__gm.playInfo()');
    const halfRead = (await callTool('get_runtime', { console: 0 }))?.structuredContent;
    const onward = await callTool('play', { action: 'resume', until: 0.8 });
    const onwardInfo = await json('__gm.playInfo()');
    await callTool('play', { action: 'resume' });
    const waited = await callTool('play_input', { steps: [{ wait: 0.31 }, { pause: true }] });
    const waitedInfo = await json('__gm.playInfo()');
    await callTool('play', { action: 'stop' });
    await waitUntil('__gm.state.mode === "edit"', { label: 'the game stopped again' });
    check(
      'play with until and a last pause step hold the game at the game time asked for, not a frame beyond',
      atHalf?.structuredContent?.time === 0.505 &&
        halfInfo.paused &&
        Math.abs(halfInfo.time - 0.505) < 1e-6 &&
        halfRead?.time === 0.505 &&
        onward?.structuredContent?.time === 0.8 &&
        onwardInfo.paused &&
        Math.abs(onwardInfo.time - 0.8) < 1e-6 &&
        waited?.structuredContent?.paused === true &&
        waited.structuredContent.seconds === 0.31 &&
        waitedInfo.paused &&
        Math.abs(waitedInfo.time - waited.structuredContent.time) < 1e-3,
      JSON.stringify({
        atHalf: atHalf?.structuredContent ?? atHalf?.content,
        halfInfo,
        halfTime: halfRead?.time,
        onward: onward?.structuredContent ?? onward?.content,
        onwardInfo,
        waited: waited?.structuredContent ?? waited?.content,
        waitedInfo,
      }),
    );

    // 71i. One Ctrl+Z of the user takes the agent's whole step back.
    await press('z', { ctrl: true });
    await settle();
    check(
      'one Ctrl+Z takes back everything the call made',
      (await json('JSON.stringify(__gm.state.project.assets)')) === assetsBefore,
      JSON.stringify({ undo: await json('__gm.state.commands.undoLabel') }),
    );

    // 71j. Deleting asks the user: the call waits for the answer, and a no leaves the asset.
    const temp = await callTool('run_commands', {
      steps: [{ command: 'create_asset', args: { type: 'sprite', name: `${TOKEN_NAME} temp` } }],
    });
    const tempId = temp?.structuredContent?.made?.[0]?.id;
    const deleting = callTool('run_commands', {
      steps: [{ command: 'delete_asset', args: { asset: tempId } }],
    });
    const asks = `The agent asks: Delete "${TOKEN_NAME} temp"?`;
    await waitUntil(`Boolean(__gm.locate(${JSON.stringify(asks)}, false))`, {
      label: 'the question is open',
    });
    await shot('71-agent-delete');
    await clickText('Cancel');
    const refused = await deleting;
    const kept = await json(`__gm.state.project.assets.some((a) => a.id === ${JSON.stringify(tempId)})`);
    await callTool('undo');
    check(
      'deleting asks the user first; the call waits, and on Cancel the asset stays',
      refused?.isError === true &&
        /said no/.test(refused.content[0].text) &&
        kept === true &&
        (await json('JSON.stringify(__gm.state.project.assets)')) === assetsBefore,
      JSON.stringify({ refused: refused?.content, kept }),
    );

    // 71k. The badge is the off switch: the agent gets no further, and a revoked token not even in.
    const badge = await locate('Agent · 1');
    await click(badge.x, badge.y);
    await waitUntil('__gm.agent().status === "off"', { label: 'the agent is off' });
    const after = await callTool('get_view');
    await api('DELETE', `agent-tokens/${listed.find((row) => row.name === TOKEN_NAME).id}`);
    const revoked = await rpc('tools/list');
    check(
      'a click on the badge switches the agent off; the agent hears no editor, and after revoking it is refused',
      (await json('__gm.agent().badge')) === null && after?.isError === true && revoked.status === 401,
      JSON.stringify({ after, revoked: revoked.status }),
    );
    check('the agent session threw nothing', exceptions().length === 0, exceptions().join(' | '));
  } catch (error) {
    // The clean-up below can fail on a page that hangs, and its error would hide this one.
    console.error('71 stopped:', error);
    throw error;
  } finally {
    await stream?.cancel().catch(() => {});
    await t.evaluate('__gm.switchAgent?.(false)').catch(() => {});
    await sweep();
    // An unsaved project holds the page with "Leave site?", which no one here answers.
    await waitUntil('__gm.state.saveStatus === "saved"', { timeout: 10000, label: 'saved' }).catch(() => {});
    if (site !== baseUrl) await navigate();
  }
}