// 五型布局求解器（清单 §6.1 / §6.2）
const { load, throws } = require('./_load');
const t = require('./_assert')();

load('client/js/gameabc-framework/ui/AlignmentUtils.js');
load('client/js/01_SubGame/codes/ui/LayoutSolver.js');

// ============ point ============
const point = { kind: 'point', x: 486, y: 4, w: 276, h: 68 };
t.eq('point 返回单元素数组', EQW_LayoutSolver.solve(point, {}), [{ x: 486, y: 4, width: 276, height: 68 }]);

// ============ line 等距 ============
// 底牌区：8 张 110×190，spacing -36，anchor center，基准 (655,110)
// totalWidth = 8*110 + 7*(-36) = 880 - 252 = 628；startX = 655 - 314 = 341
const line8 = { kind: 'line', direction: 'horizontal', anchorX: 655, anchorY: 110,
                itemWidth: 110, itemHeight: 190, spacing: -36, anchor: 'center' };
const r1 = EQW_LayoutSolver.solve(line8, { count: 8 });
t.eq('line 张数', r1.length, 8);
t.eq('line 首张 x', r1[0].x, 341);
t.eq('line 次张 x', r1[1].x, 341 + 110 - 36);
t.eq('line y 恒定', r1[7].y, 110);
t.eq('line 带上尺寸', { w: r1[0].width, h: r1[0].height }, { w: 110, h: 190 });

// ============ line + items 逐项不等宽 ============
// 底栏功能钮组：宽 74/87/93/78，spacing 15，anchor right，基准 x=1250
// totalWidth = 74+87+93+78 + 3*15 = 332 + 45 = 377；startX = 1250 - 377 = 873
const lineItems = { kind: 'line', direction: 'horizontal', anchorX: 1250, anchorY: 672,
                    itemHeight: 30, spacing: 15, anchor: 'right',
                    items: [{ key: 'A', width: 74 }, { key: 'B', width: 87 },
                            { key: 'C', width: 93 }, { key: 'D', width: 78 }] };
const r2 = EQW_LayoutSolver.solve(lineItems, {});
t.eq('items 项数（count 由 items 决定）', r2.length, 4);
t.eq('items 首项 x', r2[0].x, 873);
t.eq('items 第二项 x', r2[1].x, 873 + 74 + 15);
t.eq('items 第三项 x', r2[2].x, 873 + 74 + 15 + 87 + 15);
t.eq('items 逐项宽度', r2.map(r => r.width), [74, 87, 93, 78]);
t.eq('items 末项右边缘贴基准', r2[3].x + r2[3].width, 1250);

// ============ line 垂直 ============
const lineV = { kind: 'line', direction: 'vertical', anchorX: 100, anchorY: 0,
                itemWidth: 200, itemHeight: 32, spacing: 8, anchor: 'top' };
const r3 = EQW_LayoutSolver.solve(lineV, { count: 3 });
t.eq('垂直 y 递增', r3.map(r => r.y), [0, 40, 80]);
t.eq('垂直 x 恒定', r3.map(r => r.x), [100, 100, 100]);

// ============ fan 自适应压缩 ============
// 手牌单排：maxWidth 1215，itemWidth 110，spacingMin -78，spacingMax 0
// 36 张：raw = (1215-110)/35 - 110 = 31.571... - 110 = -78.43 → clamp 到 -78
const fan = { kind: 'fan', direction: 'horizontal', anchorX: 640, anchorY: 455,
              maxWidth: 1215, itemWidth: 110, itemHeight: 190,
              spacingMax: 0, spacingMin: -78, anchor: 'center', overlapFrom: 'left' };
const f36 = EQW_LayoutSolver.solve(fan, { count: 36 });
t.eq('fan 36 张间距取下限', f36[1].x - f36[0].x, 110 - 78);

// 少量牌时 raw 为正 → clamp 到 spacingMax
const f2 = EQW_LayoutSolver.solve(fan, { count: 2 });
t.eq('fan 2 张间距取上限', f2[1].x - f2[0].x, 110 + 0);

// count <= 1 的边界
const f1 = EQW_LayoutSolver.solve(fan, { count: 1 });
t.eq('fan 单张', f1.length, 1);
t.eq('fan 单张居中', f1[0].x, 640 - 55);
t.eq('fan 零张', EQW_LayoutSolver.solve(fan, { count: 0 }), []);

// clamp 中间值：raw 落在 [min,max] 内时原样取用
// maxWidth 500、itemWidth 100、count 5：raw = (500-100)/4 - 100 = 0 → 落在 [-60, 10] 内
const fanMid = { kind: 'fan', direction: 'horizontal', anchorX: 0, anchorY: 0,
                 maxWidth: 500, itemWidth: 100, itemHeight: 100,
                 spacingMax: 10, spacingMin: -60, anchor: 'left' };
const fm = EQW_LayoutSolver.solve(fanMid, { count: 5 });
t.eq('fan clamp 中间值', fm[1].x - fm[0].x, 100 + 0);

// ============ grid ============
// 叫分 14 档：7 列 2 行，74×56，间距 7/24，anchor center，基准 (640,160)
// 行宽 = 7*74 + 6*7 = 518 + 42 = 560；startX = 640 - 280 = 360
const grid = { kind: 'grid', anchorX: 640, anchorY: 160, cols: 7, rows: 2,
               itemWidth: 74, itemHeight: 56, spacingX: 7, spacingY: 24,
               anchor: 'center', fillOrder: 'row' };
const g = EQW_LayoutSolver.solve(grid, { count: 14 });
t.eq('grid 项数', g.length, 14);
t.eq('grid 首项 x', g[0].x, 360);
t.eq('grid 首项 y', g[0].y, 160);
t.eq('grid 第2项 x', g[1].x, 360 + 74 + 7);
t.eq('grid 第8项换行 x', g[7].x, 360);
t.eq('grid 第8项 y', g[7].y, 160 + 56 + 24);

// count 少于满格时只出 count 个
t.eq('grid 不足一行', EQW_LayoutSolver.solve(grid, { count: 3 }).length, 3);

// 边界：count 恰好等于容量（cols*rows=14）时正常返回，不抛错
t.eq('grid 恰好满格不抛错', EQW_LayoutSolver.solve(grid, { count: 14 }).length, 14);

// count 超出容量：显式抛错，不静默截断多出的项
t.eq('grid 超载抛错', throws(() => EQW_LayoutSolver.solve(grid, { count: 15 })), true);

// fillOrder 校验：目前只支持行优先（YAGNI，未实现列优先），不写等同 row
const gridNoFillOrder = { kind: 'grid', anchorX: 640, anchorY: 160, cols: 7, rows: 2,
                          itemWidth: 74, itemHeight: 56, spacingX: 7, spacingY: 24, anchor: 'center' };
t.eq('grid 不写 fillOrder 正常', EQW_LayoutSolver.solve(gridNoFillOrder, { count: 14 }).length, 14);
t.eq('grid fillOrder=row 正常', EQW_LayoutSolver.solve(grid, { count: 14 }).length, 14);
const gridColumnOrder = { kind: 'grid', anchorX: 640, anchorY: 160, cols: 7, rows: 2,
                          itemWidth: 74, itemHeight: 56, spacingX: 7, spacingY: 24, anchor: 'center', fillOrder: 'column' };
t.eq('grid fillOrder=column 抛错', throws(() => EQW_LayoutSolver.solve(gridColumnOrder, { count: 14 })), true);

// ============ attach 内部对齐（corner 为空）============
const rects = { TARGET: { x: 100, y: 200, width: 80, height: 40 } };
const attachIn = { kind: 'attach', target: 'TARGET', hAlign: 'right', vAlign: 'top',
                   offsetX: 8, offsetY: -4, w: 20, h: 10 };
const a1 = EQW_LayoutSolver.solve(attachIn, { rects: rects });
t.eq('attach 内部右上', a1, [{ x: 100 + 80 - 20 + 8, y: 200 - 4, width: 20, height: 10 }]);

// ============ attach 贴外侧角 ============
// 注意：AlignmentUtils.alignCornerTopRight（client/js/gameabc-framework/ui/AlignmentUtils.js:292-298）
// 的真实语义是【精灵的右上角与目标的右上角重合】，即
//   x = target.x + target.width - sprite.width + offsetX
//   y = target.y + offsetY
// 这与「贴在目标外侧右上角」（x = target.x + target.width + offsetX, y = target.y - sprite.height + offsetY）
// 不是一回事——它是角对角重合（精灵会与目标重叠在右上角内侧），不是贴到外侧。
// 期望值以框架实际实现为准：x = 100 + 80 - 20 + 4 = 164，y = 200 + 6 = 206。
const attachCorner = { kind: 'attach', target: 'TARGET', corner: 'topRight',
                       offsetX: 4, offsetY: 6, w: 20, h: 10 };
const a2 = EQW_LayoutSolver.solve(attachCorner, { rects: rects });
t.eq('attach 外侧右上角', a2, [{ x: 100 + 80 - 20 + 4, y: 200 + 6, width: 20, height: 10 }]);

// 四个角都要能解（通用检查：长度与类型）
['topLeft', 'topRight', 'bottomLeft', 'bottomRight'].forEach(c => {
    const r = EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: c, w: 20, h: 10 }, { rects: rects });
    t.eq('attach 角 ' + c + ' 可解', r.length === 1 && typeof r[0].x === 'number', true);
});

// 四角精确坐标核对：target={x:100,y:200,width:80,height:40}，sprite={w:20,h:10}，offset 缺省=0
// topLeft（AlignmentUtils.js:266-272）：x=target.x=100，y=target.y=200
const cTopLeft = EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'topLeft', w: 20, h: 10 }, { rects: rects });
t.eq('attach 角 topLeft 精确坐标', cTopLeft, [{ x: 100, y: 200, width: 20, height: 10 }]);

// topRight（AlignmentUtils.js:292-298）：x=target.x+target.width-sprite.width=100+80-20=160，y=target.y=200
const cTopRight = EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'topRight', w: 20, h: 10 }, { rects: rects });
t.eq('attach 角 topRight 精确坐标', cTopRight, [{ x: 160, y: 200, width: 20, height: 10 }]);

// bottomLeft（AlignmentUtils.js:318-324）：x=target.x=100，y=target.y+target.height-sprite.height=200+40-10=230
const cBottomLeft = EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'bottomLeft', w: 20, h: 10 }, { rects: rects });
t.eq('attach 角 bottomLeft 精确坐标', cBottomLeft, [{ x: 100, y: 230, width: 20, height: 10 }]);

// bottomRight（AlignmentUtils.js:344-350）：x=target.x+target.width-sprite.width=100+80-20=160，y=同 bottomLeft=230
const cBottomRight = EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'bottomRight', w: 20, h: 10 }, { rects: rects });
t.eq('attach 角 bottomRight 精确坐标', cBottomRight, [{ x: 160, y: 230, width: 20, height: 10 }]);

// ============ attach：按实际对齐模式校验 w/h（缺失且用得到时抛错，用不到时不强制） ============
// hAlign=right 用到 sprite.width（AlignmentUtils.js:111），缺 w 抛错；hAlign=left（101行）不用，缺 w 不抛错
t.eq('attach hAlign=right 缺 w 抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', hAlign: 'right', vAlign: 'top', h: 10 }, { rects: rects })), true);
t.eq('attach hAlign=left 缺 w 不抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', hAlign: 'left', vAlign: 'top', h: 10 }, { rects: rects })), false);

// vAlign=middle 用到 sprite.height（127行），缺 h 抛错；vAlign=top（122行）不用，缺 h 不抛错
t.eq('attach vAlign=middle 缺 h 抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', hAlign: 'left', vAlign: 'middle', w: 20 }, { rects: rects })), true);
t.eq('attach vAlign=top 缺 h 不抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', hAlign: 'left', vAlign: 'top', w: 20 }, { rects: rects })), false);

// vAlign=bottom（132行）用的是 target.height，不是 sprite.height，缺 h 不应抛错——这条容易想当然写错
t.eq('attach vAlign=bottom 缺 h 不抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', hAlign: 'left', vAlign: 'bottom', w: 20 }, { rects: rects })), false);

// corner=topLeft（266-272行）不用 w/h，都缺不抛错；corner=bottomRight（344-350行）两者都用，缺一即抛错
t.eq('attach corner=topLeft 缺 w/h 不抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'topLeft' }, { rects: rects })), false);
t.eq('attach corner=bottomRight 缺 w 抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'bottomRight', h: 10 }, { rects: rects })), true);
t.eq('attach corner=bottomRight 缺 h 抛错',
    throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'bottomRight', w: 20 }, { rects: rects })), true);

// ============ attach target 运行时注入（ctx.target，供叫分档位/花色图标/牌角标等模板节点用）============
const rects2 = { TARGET: { x: 100, y: 200, width: 80, height: 40 }, OTHER: { x: 5, y: 6, width: 10, height: 10 } };

// ctx.target 覆盖配置里写死的 target
const attachOverride = { kind: 'attach', target: 'TARGET', corner: 'topLeft' };
const aOverride = EQW_LayoutSolver.solve(attachOverride, { rects: rects2, target: 'OTHER' });
t.eq('ctx.target 覆盖配置 target', { x: aOverride[0].x, y: aOverride[0].y }, { x: 5, y: 6 });

// 配置无 target（模板节点）时，ctx.target 生效
const attachTemplate = { kind: 'attach', corner: 'topLeft' };
const aFromCtxOnly = EQW_LayoutSolver.solve(attachTemplate, { rects: rects, target: 'TARGET' });
t.eq('配置无 target 时 ctx.target 生效', { x: aFromCtxOnly[0].x, y: aFromCtxOnly[0].y }, { x: 100, y: 200 });

// 配置与 ctx 都没给 target：抛错
t.eq('target 与 ctx.target 都缺失抛错',
    throws(() => EQW_LayoutSolver.solve(attachTemplate, { rects: rects })), true);

// ============ bySeat 合并：列出的覆盖、未列出的继承 ============
const bySeat = {
    kind: 'fan', direction: 'horizontal', itemWidth: 90, itemHeight: 155,
    maxWidth: 170, spacingMax: -35, spacingMin: -62,
    bySeat: {
        SELF:  { anchorX: 650, anchorY: 265, anchor: 'center', overlapFrom: 'left' },
        RIGHT: { anchorX: 1022, anchorY: 120, anchor: 'center', overlapFrom: 'left' },
        LEFT:  { anchorX: 258, anchorY: 120, anchor: 'center', overlapFrom: 'right' }
    }
};
const sSelf = EQW_LayoutSolver.solve(bySeat, { seat: 'SELF', count: 1 });
const sLeft = EQW_LayoutSolver.solve(bySeat, { seat: 'LEFT', count: 1 });
t.eq('bySeat SELF 用自己的锚点', sSelf[0].x, 650 - 45);
t.eq('bySeat LEFT 用自己的锚点', sLeft[0].x, 258 - 45);
t.eq('bySeat 继承 base 的尺寸', sLeft[0].width, 90);

// ============ 显式失败：不兜底 ============
t.eq('未知 kind 抛错', throws(() => EQW_LayoutSolver.solve({ kind: 'blob' }, {})), true);
t.eq('attach target 缺失抛错', throws(() => EQW_LayoutSolver.solve(attachIn, { rects: {} })), true);
t.eq('attach 未给 rects 抛错', throws(() => EQW_LayoutSolver.solve(attachIn, {})), true);
t.eq('bySeat 缺 seat 抛错', throws(() => EQW_LayoutSolver.solve(bySeat, { count: 1 })), true);
t.eq('bySeat 未知 seat 抛错', throws(() => EQW_LayoutSolver.solve(bySeat, { seat: 'TOP', count: 1 })), true);
t.eq('node 为空抛错', throws(() => EQW_LayoutSolver.solve(null, {})), true);
t.eq('未知 corner 抛错', throws(() => EQW_LayoutSolver.solve({ kind: 'attach', target: 'TARGET', corner: 'middle', w: 1, h: 1 }, { rects: rects })), true);

// ============ 纯函数：不修改入参 ============
const before = JSON.stringify(bySeat);
EQW_LayoutSolver.solve(bySeat, { seat: 'SELF', count: 3 });
t.eq('solve 不修改配置对象', JSON.stringify(bySeat), before);

process.exit(t.done('layoutsolver') ? 0 : 1);