import { describe, expect, it } from 'vitest';
import { CreateAssetCommand } from '../../src/core/commands/assetCommands';
import { agentView, type ViewFacts, viewSummary } from '../../src/editor/agent/agentView';
import { runTool } from '../../src/editor/agent/agentTools';
import { claudeCommand, tokenLine } from '../../src/editor/agent/AgentTokensDialog';
import TOOLS from '../../src/editor/agent/tools.json';
import { graphEditor, makeBehavior, makeSpriteScene, place } from '../helpers';

/** What the agent learns of the editor (#429): `get_view`, its one line, and the tools around it. */

function facts(fixture: ReturnType<typeof makeSpriteScene>, extra: Partial<ViewFacts> = {}): ViewFacts {
  return {
    project: fixture.project,
    mode: 'edit',
    paused: false,
    saveStatus: 'saved',
    tab: { id: 'scene', label: 'Scene' },
    document: null,
    windows: [],
    selection: null,
    popups: [],
    ...extra,
  };
}

describe('get_view', () => {
  it('names the selected objects, with the asset’s name where an object has none', () => {
    const fixture = makeSpriteScene('Crate');
    const a = place(fixture, fixture.spriteId, { x: 0, y: 0 });
    const b = place(fixture, fixture.spriteId, { x: 10, y: 0 });
    fixture.object(b).name = 'Lid';
    const view = agentView(
      facts(fixture, {
        selection: { kind: 'object', holderId: fixture.sceneId, objectId: b, objectIds: [a, b] },
      }),
    );
    expect(view.selection).toEqual({
      kind: 'object',
      in: { id: fixture.sceneId, name: 'Level', type: 'scene' },
      primary: b,
      objects: [
        { id: a, name: 'Crate', asset: fixture.spriteId },
        { id: b, name: 'Lid', asset: fixture.spriteId },
      ],
    });
    expect(viewSummary(view)).toBe(
      'project "P"; tab Scene; selection: 2 objects ("Crate", "Lid") in "Level"; editing',
    );
  });

  it('names the selected nodes by type, and the document a tab shows', () => {
    const fixture = makeSpriteScene();
    const behavior = makeBehavior(fixture, 'Jump');
    const node = graphEditor(fixture, behavior).addNode('OnStart');
    const view = agentView(
      facts(fixture, {
        tab: { id: 'graph', label: 'Behavior' },
        document: `asset:${behavior.id}`,
        selection: {
          kind: 'node',
          assetId: behavior.id,
          nodeId: node.id,
          nodeIds: [node.id],
          annotationIds: [],
          edgeIds: [],
        },
        mode: 'play',
        paused: true,
      }),
    );
    expect(view.document).toEqual({
      id: `asset:${behavior.id}`,
      asset: { id: behavior.id, name: 'Jump', type: 'behavior' },
    });
    expect(view.selection).toMatchObject({
      kind: 'node',
      nodes: [{ id: node.id, type: 'OnStart' }],
      edges: [],
    });
    expect(view.play).toBe('paused');
    expect(viewSummary(view)).toBe(
      'project "P"; tab Behavior showing behavior "Jump"; selection: 1 node (OnStart) in "Jump"; paused',
    );
  });

  it('keeps the ids of the other kinds, says what an asset is, and the dialog on top', () => {
    const fixture = makeSpriteScene();
    const texture = new CreateAssetCommand('texture', 'Tiles');
    fixture.stack.execute(texture);
    const frame = agentView(
      facts(fixture, { selection: { kind: 'frame', assetId: texture.asset.id, frameId: 'f1' } }),
    );
    expect(frame.selection).toEqual({
      kind: 'frame',
      in: { id: texture.asset.id, name: 'Tiles', type: 'texture' },
      frameId: 'f1',
    });
    const asset = agentView(
      facts(fixture, {
        selection: { kind: 'asset', assetId: fixture.spriteId },
        popups: [
          { kind: 'menu', title: 'New project' },
          { kind: 'dialog', title: 'Agent tokens' },
        ],
      }),
    );
    expect(viewSummary(asset)).toBe(
      'project "P"; tab Scene; selection: sprite "Box"; editing; dialog "Agent tokens" is open',
    );
  });

  it('has a line that does not move with the camera', () => {
    const fixture = makeSpriteScene();
    const view = agentView(facts(fixture));
    expect(viewSummary({ ...view, camera: { x: 1, y: 2, zoom: 3 } })).toBe(viewSummary(view));
  });
});

describe('the tools', () => {
  const host = {
    view: () => agentView(facts(makeSpriteScene())),
    screenshot: (maxWidth: number) =>
      Promise.resolve({ data: 'iVBOR', width: Math.min(maxWidth, 1600), height: 900 }),
  };

  it('are the ones the relay lists, each with a schema', () => {
    expect(TOOLS.map((tool) => tool.name)).toEqual(['get_view', 'screenshot']);
    for (const tool of TOOLS) expect(tool.inputSchema.type).toBe('object');
  });

  it('get_view answers the view as text and as structured content', async () => {
    const result = await runTool('get_view', {}, host);
    expect(result.structuredContent).toMatchObject({ tab: { id: 'scene' }, play: 'editing' });
    expect(result.content[0]).toEqual({ type: 'text', text: JSON.stringify(result.structuredContent) });
  });

  it('screenshot answers a PNG at 1280 pixels unless told otherwise, and refuses a width out of range', async () => {
    const shot = await runTool('screenshot', {}, host);
    expect(shot.content[0]).toEqual({ type: 'image', data: 'iVBOR', mimeType: 'image/png' });
    expect(shot.content[1]).toEqual({
      type: 'text',
      text: 'The editor as the user sees it, 1280x900 pixels.',
    });
    expect((await runTool('screenshot', { maxWidth: 100 }, host)).isError).toBe(true);
    expect((await runTool('screenshot', { maxWidth: 'big' }, host)).isError).toBe(true);
  });

  it('an unknown tool says to reload', async () => {
    const answer = (await runTool('run_command', {}, host)).content[0];
    expect(answer?.type === 'text' && answer.text).toMatch(/reload/);
  });
});

describe('agent tokens', () => {
  it('are listed by day made, day of expiry and last use', () => {
    const day = Date.UTC(2026, 9, 17) / 1000;
    expect(tokenLine({ id: 'a', name: 'x', createdAt: day, expiresAt: day + 90 * 86400, usedAt: null })).toBe(
      'made 2026-10-17 · expires 2027-01-15 · never used',
    );
    expect(
      tokenLine({ id: 'a', name: 'x', createdAt: day, expiresAt: day + 86400, usedAt: day + 3600 }),
    ).toBe('made 2026-10-17 · expires 2026-10-18 · last used 2026-10-17');
  });

  it('are set up in Claude Code with one line', () => {
    expect(claudeCommand('https://feuerwerk.nockal.com/mcp', 'fwa_00')).toBe(
      'claude mcp add --transport http feuerwerk https://feuerwerk.nockal.com/mcp --header "Authorization: Bearer fwa_00"',
    );
  });
});