/**
 * The undo contract every "write one key into a property bag" command shares: a key that was
 * not in the bag before the edit must be *absent* again afterwards, not present as undefined.
 * Serialization and the "is this an override?" checks in the inspector go by key presence.
 */
import { describe, expect, it } from 'vitest';
import { ResetAssetPropertyCommand, SetAssetPropertyCommand } from '../../src/core/commands/assetCommands';
import { SetNodeParamCommand } from '../../src/core/commands/graphCommands';
import { ClearOverrideCommand, SetOverrideCommand } from '../../src/core/commands/sceneObjectCommands';
import { findAsset } from '../../src/core/model/Project';
import { graphEditor, makeBehavior, makeSpriteScene, place } from '../helpers';

describe('bag value commands', () => {
  it('undoing an override leaves no key behind', () => {
    const fixture = makeSpriteScene();
    const box = place(fixture, fixture.spriteId, { x: 0, y: 0 });
    fixture.stack.execute(new SetOverrideCommand(fixture.sceneId, box, 'width', 33));
    expect(fixture.object(box).overrides).toEqual({ width: 33 });

    fixture.stack.undo();
    expect('width' in fixture.object(box).overrides).toBe(false);
  });

  it('undoing a cleared override puts the old value back', () => {
    const fixture = makeSpriteScene();
    const box = place(fixture, fixture.spriteId, { x: 0, y: 0 });
    fixture.stack.execute(new SetOverrideCommand(fixture.sceneId, box, 'width', 33));
    fixture.stack.execute(new ClearOverrideCommand(fixture.sceneId, box, 'width'));
    expect('width' in fixture.object(box).overrides).toBe(false);

    fixture.stack.undo();
    expect(fixture.object(box).overrides.width).toBe(33);
  });

  it('coerces on set and restores the untouched default on undo of a reset', () => {
    const fixture = makeSpriteScene();
    const sprite = () => findAsset(fixture.project, fixture.spriteId)!;
    // 'width' is a number property, so a numeric string is coerced.
    fixture.stack.execute(new SetAssetPropertyCommand(fixture.spriteId, 'width', '250'));
    expect(sprite().props.width).toBe(250);

    fixture.stack.execute(new ResetAssetPropertyCommand(fixture.spriteId, 'width'));
    expect(sprite().props.width).toBe(100);
    fixture.stack.undo();
    expect(sprite().props.width).toBe(250);
  });

  it('restores a node param that had no value before', () => {
    const fixture = makeSpriteScene();
    const behavior = makeBehavior(fixture, 'B');
    // `Owner` declares no params, so 'value' is an inline input value: stored as given.
    const node = graphEditor(fixture, behavior).addNode('Owner');

    fixture.stack.execute(new SetNodeParamCommand(behavior.id, node.id, 'value', 7));
    expect(node.params.value).toBe(7);

    fixture.stack.undo();
    expect('value' in node.params).toBe(false);
  });
});