task(D10): array-path tool - distribute element copies evenly along polyline path in one undo transaction, count option
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/**
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* Task D10-Rest – array-path: Elemente entlang einer Polyline verteilen.
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*
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* Klick1 = Quelle (Auto-HitSelect bei leerer Selektion), Klick2 auf
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* Pfad-Polyline → Element-Kopien gleichmaessig entlang der Pfad-
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* laenge verteilt (count aus Options, Default 5), Original bleibt,
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* ALLES in EINER Transaktion = 1 Undo-Schritt.
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*/
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import { describe, it, expect, beforeEach } from 'vitest';
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import { arrayPathTool } from '../src/plugins/builtin/core-modify';
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import { CADDocument } from '../src/kernel/document/CADDocument';
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import { createInMemoryDoc } from './helpers/inMemoryDoc';
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import type { CADElement, Pt } from '../src/types/cad.types';
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function mkCtx(elements: CADElement[], options: Record<string, unknown> = {}) {
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const { ydoc } = createInMemoryDoc();
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const doc = new CADDocument(ydoc);
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for (const el of elements) doc.addElement(el);
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const selectedIds = new Set<string>();
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const statuses: string[] = [];
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const ctx: any = {
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doc,
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options,
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setStatus: (m: string) => statuses.push(m),
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setPreview: (_el: CADElement | null) => {},
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selection: {
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getIds: () => Array.from(selectedIds),
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setIds: (ids: string[]) => {
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selectedIds.clear();
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for (const id of ids) selectedIds.add(id);
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},
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hitTest: (x: number, y: number, _tol: number) => {
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// trifft das Element, dessen BBox den Punkt enthaelt (erstes Gewinnt)
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for (const el of elements) {
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if (
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x >= el.x - el.width / 2 && x <= el.x + el.width / 2 &&
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y >= el.y - el.height / 2 && y <= el.y + el.height / 2
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) return el;
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}
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return null;
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},
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},
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};
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return { ctx, doc, selectedIds, statuses };
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}
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function pe(x: number, y: number): { world: Pt } {
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return { world: { x, y } } as never;
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}
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const CHAIR = {
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id: 'chair-1', type: 'chair', layerId: 'layer-0',
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x: 0, y: 0, width: 40, height: 40, properties: {},
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} as unknown as CADElement;
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const PATH = {
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id: 'path-1', type: 'polyline', layerId: 'layer-0',
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x: 250, y: 0, width: 500, height: 0,
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properties: { points: [{ x: 0, y: 0 }, { x: 500, y: 0 }] },
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} as unknown as CADElement;
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beforeEach(() => {
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arrayPathTool.handlers.cancel?.({ setStatus: () => {}, setPreview: () => {} } as never);
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});
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describe('D10: arrayPathTool', () => {
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it('verteilt count Kopien gleichmaessig entlang der Pfadlaenge (Original bleibt)', () => {
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, PATH]);
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selectedIds.add('chair-1');
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// Klick1: Quelle ist schon selektiert -> Basis direkt setzen
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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// Klick2: auf den Pfad klicken (Pfad-Mitte 250,0)
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arrayPathTool.handlers.down!(pe(250, 0), ctx);
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const els = doc.getAllElements();
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// Original + Pfad + 5 Kopien
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const chairs = els.filter((e) => e.type === 'chair');
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expect(chairs.length).toBe(1 + 5);
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// Kopien getrennt vom Original (Original bleibt bei x=0 unangetastet):
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const copies = chairs.filter((c) => c.id !== 'chair-1');
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expect(copies).toHaveLength(5);
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const copyXs = copies.map((c) => c.x).sort((a, b) => a - b);
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// count=5 gleichmaessig ueber Pfadlaenge 500: s = i/(count-1)*total
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expect(copyXs[0]).toBeCloseTo(0, 0);
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expect(copyXs[1]).toBeCloseTo(125, 0);
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expect(copyXs[2]).toBeCloseTo(250, 0);
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expect(copyXs[3]).toBeCloseTo(375, 0);
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expect(copyXs[4]).toBeCloseTo(500, 0);
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});
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it('Auto-HitSelect bei leerer Selektion (Klick1 auf Element)', () => {
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, PATH]);
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// Selektion ist leer: Klick auf den Stuhl waehlt ihn automatisch
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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expect(selectedIds.has('chair-1')).toBe(true);
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// Klick2 auf Pfad -> Commit
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arrayPathTool.handlers.down!(pe(100, 0), ctx);
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expect(doc.getAllElements().filter((e) => e.type === 'chair').length).toBe(6);
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});
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it('Klick2 trifft KEINEN Pfad -> kein Commit, Status erklaert', () => {
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const { ctx, doc, selectedIds, statuses } = mkCtx([CHAIR, PATH]);
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selectedIds.add('chair-1');
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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// Klick weit weg vom Pfad (kein Element getroffen)
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arrayPathTool.handlers.down!(pe(9999, 9999), ctx);
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expect(doc.getAllElements().filter((e) => e.type === 'chair')).toHaveLength(1);
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expect(statuses[statuses.length - 1]).toContain('Pfad');
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});
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it('Kopien in EINER Transaktion = 1 Undo entfernt alle', () => {
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, PATH]);
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selectedIds.add('chair-1');
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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arrayPathTool.handlers.down!(pe(250, 0), ctx);
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expect(doc.getAllElements().filter((e) => e.type === 'chair')).toHaveLength(6);
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doc.undo();
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expect(doc.getAllElements().filter((e) => e.type === 'chair')).toHaveLength(1);
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});
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it('count-Option steuert die Anzahl (3 statt 5)', () => {
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, PATH], { count: 3 });
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selectedIds.add('chair-1');
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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arrayPathTool.handlers.down!(pe(250, 0), ctx);
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expect(doc.getAllElements().filter((e) => e.type === 'chair')).toHaveLength(4); // Original + 3
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// Kopien getrennt vom Original: count=3 -> s = 0, 250, 500
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const copies3 = doc.getAllElements().filter((e) => e.type === 'chair' && e.id !== 'chair-1');
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const copyXs3 = copies3.map((c) => c.x).sort((a, b) => a - b);
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expect(copyXs3[0]).toBeCloseTo(0, 0);
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expect(copyXs3[1]).toBeCloseTo(250, 0);
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expect(copyXs3[2]).toBeCloseTo(500, 0);
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});
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it('gebogener Pfad (3 Punkte): Kopien folgen der Geometrie', () => {
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const cornerPath = {
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id: 'path-2', type: 'polyline', layerId: 'layer-0',
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x: 100, y: 100, width: 200, height: 200,
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properties: { points: [{ x: 0, y: 0 }, { x: 200, y: 0 }, { x: 200, y: 200 }] },
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} as unknown as CADElement;
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, cornerPath], { count: 4 });
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selectedIds.add('chair-1');
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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arrayPathTool.handlers.down!(pe(100, 10), ctx);
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const chairs = doc.getAllElements().filter((e) => e.type === 'chair');
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expect(chairs.length).toBe(5); // Original + 4
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// Kopien muessen auf dem L-foermigen Pfad liegen: alle x<=200, y>=0
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for (const c of chairs.slice(1)) {
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expect(c.x).toBeLessThanOrEqual(200.5);
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expect(c.y).toBeGreaterThanOrEqual(-0.5);
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}
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});
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it('cancel resettet die Sitzung', () => {
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const { ctx, doc, selectedIds } = mkCtx([CHAIR, PATH]);
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selectedIds.add('chair-1');
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arrayPathTool.handlers.down!(pe(0, 0), ctx);
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arrayPathTool.handlers.cancel?.(ctx);
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// Nach cancel: Klick startet frisch (Auto-HitSelect-Pfad wieder aktiv)
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arrayPathTool.handlers.down!(pe(9999, 9999), ctx);
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expect(doc.getAllElements().filter((e) => e.type === 'chair')).toHaveLength(1);
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});
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it('Manifest: id=array-path, tags pro', () => {
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expect(arrayPathTool.manifest.id).toBe('array-path');
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expect((arrayPathTool.manifest.tags ?? [])).toContain('pro');
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const keys = (arrayPathTool.optionsSchema ?? []).map((f) => f.key);
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expect(keys).toContain('count');
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});
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});
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