/* 第 2 页场景数据
   背景字满铺「墙」，明度同 page1 的「天」；前景文字四周整格扣空。 */

(() => {
  /* 按矩形铺字，逐行生成一条 glyph */
  const block = (x, y, w, h, text, cls) =>
    Array.from({ length: h }, (_, j) => ({
      text: text.repeat(w),
      x,
      y: y + j,
      cls,
    }));

  /* 扣空：按整格清空，保证留下的背景都是完整字 */
  const clear = (x, y, w, h) => block(x, y, w, h, '　', 'void');

  TextScene.render({
    cols: 28,
    rows: 44,
    skyChar: '墙',
    skyClass: 'wall',
    glyphs: [
      /* 地：最后一排 */
      { text: '地'.repeat(28), x: 0, y: 43, cls: 'ground' },

      /* 桌：12 格宽；桌面两行，桌腿各 2 格、向内缩一格并落地 */
      ...block(0, 36, 12, 2, '桌', 'table'),
      ...block(1, 38, 2, 5, '桌', 'table'),
      ...block(9, 38, 2, 5, '桌', 'table'),

      /* 椅：4 格宽，比桌面低一档；右侧靠背、一格座面与两条椅腿 */
      ...block(16, 38, 1, 2, '椅', 'chair'),
      ...block(13, 40, 4, 1, '椅', 'chair'),
      ...block(13, 41, 1, 2, '椅', 'chair'),
      ...block(16, 41, 1, 2, '椅', 'chair'),

      /* 酒杯：立在桌面之上，竖排两字；左起第 4 格与右起第 3 格 */
      { text: '酒', x: 3, y: 34, cls: 'cup' },
      { text: '杯', x: 3, y: 35, cls: 'cup' },
      { text: '酒', x: 9, y: 34, cls: 'cup' },
      { text: '杯', x: 9, y: 35, cls: 'cup' },

      /* 烛：两酒杯正中竖排三字，立在桌面上 */
      ...block(6, 33, 1, 3, '烛', 'candle'),

      /* 火：烛焰两字，左上到右下斜排，右下那字正对烛柱 */
      { text: '火', x: 5, y: 31, cls: 'flame' },
      { text: '火', x: 6, y: 32, cls: 'flame' },

      /* 酒桶：右下角地上，4 格宽；「盖」为顶、「桶」做外壳，内里盛「酒」 */
      ...block(24, 38, 4, 1, '盖', 'lid'),
      ...block(24, 39, 1, 3, '桶', 'barrel'),
      ...block(27, 39, 1, 3, '桶', 'barrel'),
      ...block(25, 39, 2, 3, '酒', 'wine'),
      ...block(24, 42, 4, 1, '桶', 'barrel'),

      /* 灯笼：右上角，4 格宽；链加长两节使整体下移两格，并整体右移一格 */
      { text: '链', x: 24, y: 0, cls: 'chain' },
      { text: '链', x: 24, y: 1, cls: 'chain' },
      { text: '链', x: 24, y: 2, cls: 'chain' },
      ...block(23, 3, 2, 1, '链', 'chain'),
      { text: '链', x: 23, y: 4, cls: 'chain' },
      ...block(23, 5, 2, 1, '笼', 'cap'),
      ...block(22, 6, 1, 3, '笼', 'shade'),
      ...block(25, 6, 1, 3, '笼', 'shade'),
      ...block(23, 6, 2, 3, '灯', 'core'),
      ...block(23, 9, 2, 1, '笼', 'shade'),

      /* 穗：灯笼底下四字，上行两格、下行左右分开 */
      ...block(23, 10, 2, 1, '穗', 'tassel'),
      { text: '穗', x: 22, y: 11, cls: 'tassel' },
      { text: '穗', x: 24, y: 11, cls: 'tassel' },

      /* 画框：墙上 8×6 矩形，「框」为边、「图」作画面 */
      ...block(12, 3, 8, 1, '框', 'frame'),
      ...block(12, 8, 8, 1, '框', 'frame'),
      ...block(12, 4, 1, 4, '框', 'frame'),
      ...block(19, 4, 1, 4, '框', 'frame'),
      ...block(13, 4, 6, 4, '图', 'picture'),

      /* 前景留白：文字外框各放约半格，再向外取整格扣空，文字在其中居中 */
      ...clear(3, 4, 7, 3),    /* 「酒水单」y4.7–6.3 → 行 4–6 */
      ...clear(4, 12, 8, 14),  /* 第一列 y12.75–25.25 → 行 12–25 */
      ...clear(16, 14, 8, 19), /* 第二列 y14.75–32.25 → 行 14–32 */
    ],
  });

  const scene = document.querySelector('.scene');

  /* 画框照片：盖在「图」区之上，四边各缩 0.1em 以免压到「框」 */
  const picture = document.createElement('img');
  picture.className = 'picture-img';
  picture.src = 'assets/images/page2-picture.png';
  picture.alt = '';
  scene.append(picture);

  const listing = document.createElement('h1');
  listing.className = 'listing';
  listing.textContent = '酒水单';
  scene.append(listing);

  /* 酒水单：前景两列，前 5 后 7；罗马数字与曲目名各自左对齐 */
  const PROGRAM = [
    ['I', '听'], ['II', '酒歌'], ['III', '眼睛'], ['IV', '黑'], ['V', '天'],
    ['VI', '麻雀'], ['VII', '业火'], ['VIII', '问'], ['IX', '难'], ['X', '画'],
    ['XI', '田'], ['XII', '今生'],
  ];

  const programColumn = (items) => {
    const col = document.createElement('div');
    col.className = 'program-col';

    for (const [no, name] of items) {
      const row = document.createElement('div');
      row.className = 'program-item';

      const numeral = document.createElement('span');
      numeral.className = 'program-no';
      numeral.textContent = no;

      const label = document.createElement('span');
      label.className = 'program-name';
      label.textContent = name;

      row.append(numeral, label);
      col.append(row);
    }

    return col;
  };

  const program = document.createElement('div');
  program.className = 'program';

  const first = programColumn(PROGRAM.slice(0, 5));
  const second = programColumn(PROGRAM.slice(5));
  first.classList.add('program-col-1');
  second.classList.add('program-col-2');

  program.append(first, second);
  scene.append(program);
})();