/**
 * 514-3 — 가벼운 폴리선(자식 대신 꼭짓점 목록 · B07 유역도 배경선)을 CAD 가 선분으로 펼치는지.
 * 실행: cd B07_DesignDetail/openwebcad && npx vitest run --config <include 를 이 파일로 바꾼 vitest.tmp.config.ts>
 */
import { describe, expect, it } from "vitest";
import { EntityName, type JsonEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/Entity";
import type { LineEntity } from "../../../B07_DesignDetail/openwebcad/src/entities/LineEntity";
import {
  PolyLineEntity,
  type PolyLineJsonData,
} from "../../../B07_DesignDetail/openwebcad/src/entities/PolyLineEntity";

const light: JsonEntity<PolyLineJsonData> = {
  id: "p1",
  type: EntityName.PolyLine,
  lineColor: "#6b7684",
  lineWidth: 1,
  layerId: "b08-basin-contour",
  shapeData: { points: [{ x: 0, y: 0 }, { x: 1, y: 0 }, { x: 1, y: 2 }] },
};

describe("514-3 가벼운 폴리선", () => {
  it("꼭짓점 n 개 = 선분 n-1 개 · 색 · 층 · id 는 부모 것", async () => {
    const poly = await PolyLineEntity.fromJson(light);
    expect(poly.id).toBe("p1");
    expect(poly.numberOfSegments()).toBe(2);
    const lines = poly.getEntities() as LineEntity[];
    expect(lines.map((line) => [line.lineColor, line.layerId])).toEqual([
      ["#6b7684", "b08-basin-contour"],
      ["#6b7684", "b08-basin-contour"],
    ]);
    expect(lines[1].getStartPoint().y).toBe(0);
    expect(lines[1].getEndPoint().y).toBe(2);
  });

  it("다시 내보내면 옛 꼴(자식 선분) — 편집 저장 길 그대로", async () => {
    const json = await (await PolyLineEntity.fromJson(light)).toJson();
    expect(json?.children?.length).toBe(2);
    expect(json?.shapeData).toBeNull();
    const again = await PolyLineEntity.fromJson(json as JsonEntity<PolyLineJsonData>);
    expect(again.numberOfSegments()).toBe(2);
  });

  it("꼭짓점 하나 · 빈 값 = 선분 없음", async () => {
    const one = await PolyLineEntity.fromJson({ ...light, shapeData: { points: [{ x: 0, y: 0 }] } });
    const none = await PolyLineEntity.fromJson({ ...light, shapeData: null });
    expect([one.numberOfSegments(), none.numberOfSegments()]).toEqual([0, 0]);
  });
});