/**
 * 표 객체 검증 (조사표 5절 표 · 12절 테이블 셀).
 * 실행: cd B07_DesignDetail/openwebcad && npx vitest run --config vitest.tmp.config.ts
 */
import { Point } from '@flatten-js/core';
import { describe, expect, it } from 'vitest';
import {
	cellAt,
	cellRect,
	normalizeCells,
	tableBorders,
	type TableCells,
} from '../../../B07_DesignDetail/openwebcad/src/helpers/table-geometry';
import { TableEntity } from '../../../B07_DesignDetail/openwebcad/src/entities/TableEntity';

const origin = { x: 0, y: 100 };
const widths = [20, 30, 10];
const heights = [10, 10];

describe('표 기하', () => {
	it('병합이 없으면 바깥 4 + 안쪽 세로 2×2 + 안쪽 가로 3 = 11개 경계선', () => {
		const cells = normalizeCells([], 2, 3);
		expect(tableBorders(origin, widths, heights, cells)).toHaveLength(11);
	});

	it('가로 병합은 그 자리의 세로선을 지운다', () => {
		const cells: TableCells = normalizeCells(
			[[{ text: '머리', colSpan: 3 }, null, null], [{ text: 'a' }, { text: 'b' }, { text: 'c' }]],
			2,
			3
		);
		const borders = tableBorders(origin, widths, heights, cells);
		// 첫 행의 세로선 2개가 사라진다
		expect(borders).toHaveLength(9);
		const topRowVerticals = borders.filter(
			(border) => border.x1 === border.x2 && border.y1 === 100 && border.x1 !== 0 && border.x1 !== 60
		);
		expect(topRowVerticals).toHaveLength(0);
	});

	it('세로 병합은 그 자리의 가로선을 지우고 셀 사각형이 두 행을 덮는다', () => {
		const cells = normalizeCells(
			[
				[{ text: '그룹', rowSpan: 2 }, { text: 'b' }, { text: 'c' }],
				[null, { text: 'e' }, { text: 'f' }],
			],
			2,
			3
		);
		const borders = tableBorders(origin, widths, heights, cells);
		const middleHorizontals = borders.filter((border) => border.y1 === 90 && border.y2 === 90);
		expect(middleHorizontals).toHaveLength(2); // 첫 열은 병합이라 빠진다

		const rect = cellRect(origin, widths, heights, 0, 0, cells[0][0]);
		expect([rect.left, rect.top, rect.right, rect.bottom]).toEqual([0, 100, 20, 80]);
	});

	it('클릭 지점의 칸을 찾고, 병합 자리는 앵커를 돌려준다', () => {
		const cells = normalizeCells(
			[
				[{ text: '그룹', rowSpan: 2 }, { text: 'b' }, { text: 'c' }],
				[null, { text: 'e' }, { text: 'f' }],
			],
			2,
			3
		);
		expect(cellAt(origin, widths, heights, cells, { x: 30, y: 95 })).toEqual({ row: 0, column: 1 });
		// 아래쪽 병합 자리를 찍어도 앵커(0,0)가 나온다
		expect(cellAt(origin, widths, heights, cells, { x: 10, y: 85 })).toEqual({ row: 0, column: 0 });
		expect(cellAt(origin, widths, heights, cells, { x: 200, y: 95 })).toBeNull();
	});

	it('빈 칸을 채워도 병합은 풀리지 않는다', () => {
		const normalized = normalizeCells([[{ text: '머리', colSpan: 3 }]], 2, 3);
		expect(normalized[0][1]).toBeNull();
		expect(normalized[0][2]).toBeNull();
		expect(normalized[1][0]).toEqual({ text: '' });
	});
});

describe('표 객체', () => {
	const makeTable = () =>
		new TableEntity('layer-1', new Point(0, 100), [...widths], [...heights], [
			[{ text: '머리', colSpan: 3 }, null, null],
			[{ text: 'a' }, { text: 'b', key: 'cut_soil' }, { text: 'c' }],
		]);

	it('경계상자는 열 폭·행 높이의 합이다', () => {
		const box = makeTable().getBoundingBox();
		expect([box.xmin, box.ymin, box.xmax, box.ymax]).toEqual([0, 80, 60, 100]);
	});

	it('JSON 왕복에서 병합·칸 키가 살아남는다', async () => {
		const json = await makeTable().toJson();
		expect(json).toBeTruthy();
		if (!json) return;
		const restored = await TableEntity.fromJson(json as never);
		expect(restored.getCell(0, 0)?.colSpan).toBe(3);
		expect(restored.getCell(0, 1)).toBeNull();
		expect(restored.getCell(1, 1)?.key).toBe('cut_soil');
		const box = restored.getBoundingBox();
		expect([box.xmin, box.ymin, box.xmax, box.ymax]).toEqual([0, 80, 60, 100]);
	});

	it('행·열을 넣고 지울 수 있다', () => {
		const table = makeTable();
		table.insertRow(2);
		expect(table.getRowHeights()).toHaveLength(3);
		table.insertColumn(0);
		expect(table.getColumnWidths()).toHaveLength(4);
		table.deleteColumn(0);
		table.deleteRow(2);
		expect(table.getColumnWidths()).toEqual(widths);
		expect(table.getRowHeights()).toEqual(heights);
	});

	it('열 폭 그립으로 폭만 바뀌고 전체 폭이 따라 늘어난다', () => {
		const table = makeTable();
		table.setColumnWidth(0, 40);
		const box = table.getBoundingBox();
		expect(box.xmax - box.xmin).toBe(80);
	});
});