/**
 * Copy and paste of scene objects and graph nodes (#240), with the real keys and the real menus.
 * What only the running editor knows is where the pointer is: a paste under it has to land exactly
 * there, and one without it has to land beside the original – the rules themselves are unit-tested.
 * Everything pasted here is taken back by undo, so the fixture leaves as it came.
 */
export async function clipboard(t) {
  const { check, json, evaluate, mouse, settle, press, click, clickText, select, showTab, undo, shot } = t;

  const stored = () => json('__gm.state.activeScene.objects');
  const selected = async () => (await json('__gm.state.selection')) ?? {};
  const near = (a, b) => a && b && Math.abs(a.x - b.x) <= 1.5 && Math.abs(a.y - b.y) <= 1.5;
  const moveTo = async (p) => {
    await mouse('mouseMoved', p.x, p.y);
    await settle();
  };

  await press('Escape');
  await showTab('scene');
  await evaluate('__gm.state.clipboard = null');
  // Two crates of its own, each with a collider, where the seed has its red and blue crate. In the
  // full run those two are long packed into a container by module 09, so they are no fixture here.
  const BLUE = 'clip-blue';
  const RED = 'clip-red';
  await t.mutate(`
    const scene = __gm.state.activeScene;
    const put = (id, assetId, parentId, x, y, name) => {
      const o = structuredClone(scene.objects[0]);
      Object.assign(o, { id, assetId, parentId, name, position: { x, y, z: 0 }, overrides: {}, instanceEdits: {} });
      delete o.groupId;
      if ('enabled' in o) o.enabled = true;
      scene.objects.push(o);
    };
    put(${JSON.stringify(BLUE)}, 'crate', '', 120, -80, 'Blue crate');
    put(${JSON.stringify(BLUE)} + '-col', 'collider', ${JSON.stringify(BLUE)}, 0, 0, 'Collider');
    put(${JSON.stringify(RED)}, 'crate', '', -150, 0, 'Red crate');
    put(${JSON.stringify(RED)} + '-col', 'collider', ${JSON.stringify(RED)}, 0, 0, 'Collider');
    __gm.state.select(null)`);

  // 51a. Ctrl+C on the blue crate, Ctrl+V with the pointer over empty space: the crate and its
  //      collider come back as new objects, the crate standing right under the pointer.
  await select({ kind: 'object', holderId: 'scene1', objectId: BLUE, objectIds: [BLUE] });
  await press('c', { ctrl: true });
  const spot = await json('__gm.emptySpot()');
  const before = await stored();
  await moveTo(spot);
  await press('v', { ctrl: true });
  const afterPointer = await stored();
  const pasted = (await selected()).objectId;
  const copy = afterPointer.find((o) => o.id === pasted);
  const copiedCollider = afterPointer.find((o) => o.parentId === pasted);
  check(
    'Ctrl+V puts a copy of the crate and its collider under the pointer',
    afterPointer.length === before.length + 2 &&
      copy?.assetId === 'crate' &&
      copy.name === 'Blue crate' &&
      copiedCollider?.assetId === 'collider' &&
      near(await json(`__gm.objectScreen(${JSON.stringify(pasted)})`), spot),
    JSON.stringify({ spot, copy, at: await json(`__gm.objectScreen(${JSON.stringify(pasted)})`) }),
  );
  check(
    'the hierarchy lists the copy',
    (await json('__gm.hierarchyOrder()')).includes(pasted),
    JSON.stringify(await json('__gm.hierarchyOrder()')),
  );
  await shot('51-pasted-at-pointer');
  await undo();
  check('one undo takes the whole paste back', (await stored()).length === before.length);

  // 51b. With the pointer over the hierarchy the copy has nowhere to be aimed: it lands one grid
  //      step down and right of the original, beside it rather than inside it.
  await select({ kind: 'object', holderId: 'scene1', objectId: BLUE, objectIds: [BLUE] });
  await moveTo(await json(`__gm.hierarchyRow(${JSON.stringify(BLUE)})`));
  await press('v', { ctrl: true });
  const besideId = (await selected()).objectId;
  const beside = (await stored()).find((o) => o.id === besideId);
  const original = (await stored()).find((o) => o.id === BLUE);
  check(
    'without the pointer on the view the copy lands a grid step beside the original',
    beside !== undefined &&
      beside.id !== BLUE &&
      beside.parentId === original.parentId &&
      beside.position.x === original.position.x + 100 &&
      beside.position.y === original.position.y + 100,
    JSON.stringify({ original: original.position, beside }),
  );
  await undo();

  // 51c. The object menu: right-click the red crate, "Paste" puts the copy inside what was hit –
  //      the crate or the collider drawn over it, whichever the pointer picks.
  const red = await json(`__gm.objectScreen(${JSON.stringify(RED)})`);
  await click(red.x, red.y, 'right');
  const target = (await selected()).objectId;
  const rows = (await json('__gm.menuRows()')) ?? [];
  await clickText('Paste');
  const insideId = (await selected()).objectId;
  const inside = (await stored()).find((o) => o.id === insideId);
  check(
    'the object menu offers Copy and Paste, and Paste puts the copy into the object clicked',
    rows.includes('Copy') &&
      rows.includes('Paste') &&
      [RED, `${RED}-col`].includes(target) &&
      inside?.assetId === 'crate' &&
      inside.parentId === target,
    JSON.stringify({ target, rows, inside }),
  );
  await undo();

  // 51f. The red crate drawn aside by its editor offset (#263): Ctrl+V with it selected puts the
  //      copy inside it and still right under the pointer, where the view shows the copy.
  await t.mutate(`
    __gm.state.activeScene.objects.find((o) => o.id === ${JSON.stringify(RED)}).editorOffset = { x: 60, y: -40 }`);
  await select({ kind: 'object', holderId: 'scene1', objectId: RED, objectIds: [RED] });
  const offsetSpot = await json('__gm.emptySpot()');
  await moveTo(offsetSpot);
  await press('v', { ctrl: true });
  const underRedId = (await selected()).objectId;
  const underRed = (await stored()).find((o) => o.id === underRedId);
  const shownAt = await json(`__gm.objectScreen(${JSON.stringify(underRedId)})`);
  check(
    'Ctrl+V into a parent with an editor offset still lands under the pointer',
    underRed?.assetId === 'crate' && underRed.parentId === RED && near(shownAt, offsetSpot),
    JSON.stringify({ offsetSpot, shownAt, underRed: underRed && underRed.position }),
  );
  await undo();
  check('the scene is back as it was', (await stored()).length === before.length);

  // 51d. A node of the Mover behavior, copied and pasted under the pointer in its own graph.
  await select({ kind: 'node', assetId: 'mover', nodeId: 'n-axis', nodeIds: ['n-axis'] });
  await showTab('graph');
  await press('c', { ctrl: true });
  const graphSpot = await json('__gm.graph.emptySpot()');
  const nodes = () => json("__gm.state.project.assets.find((a) => a.id === 'mover').graph.nodes");
  const count = (await nodes()).length;
  await moveTo(graphSpot);
  await press('v', { ctrl: true });
  const newNode = (await selected()).nodeId;
  const zoom = await json('__gm.graph.zoom()');
  const title = await json(`__gm.graph.nodeAt(${JSON.stringify(newNode)})`);
  // `nodeAt` is the middle of the title bar; the node's corner is what lands on the pointer.
  const corner = title && { x: title.x - (176 / 2) * zoom, y: title.y - (24 / 2) * zoom };
  check(
    'Ctrl+V in the graph puts a copy of the node under the pointer',
    (await nodes()).length === count + 1 &&
      (await nodes()).find((n) => n.id === newNode)?.type === 'AxisInput' &&
      near(corner, graphSpot),
    JSON.stringify({ graphSpot, corner, zoom }),
  );
  await undo();

  // 51e. The palette on empty space offers Paste first, and it lands where the palette opened.
  await click(graphSpot.x, graphSpot.y, 'right');
  const offered = await json('__gm.graph.paletteRows()');
  await clickText('Paste');
  const fromPalette = (await selected()).nodeId;
  check(
    'the palette on empty space offers Paste, which adds the copy there',
    offered[0]?.type === 'paste' &&
      (await nodes()).length === count + 1 &&
      (await nodes()).find((n) => n.id === fromPalette)?.type === 'AxisInput',
    JSON.stringify(offered.slice(0, 3)),
  );
  await undo();
  check('the graph is back as it was', (await nodes()).length === count);
  await evaluate('__gm.state.clipboard = null');
  await showTab('scene');
  await t.mutate(`
    const scene = __gm.state.activeScene;
    scene.objects = scene.objects.filter((o) => !o.id.startsWith('clip-'));`);
  await t.saved();
}