feat: add Number Connect game with ABC spatial optimization and auto-pagination

cmd/toolbox/web/tools/learn_number.html

@@ -2,59 +2,75 @@
 <div id="panel-learn-number" class="tool-panel">
     <header class="page-header">
         <h1>幼儿数学助手</h1>
-        <p>通过高品质卡通图形，培养孩子的数感与逻辑思维。</p>
+        <p>通过趣味游戏，培养孩子的数感、逻辑思维与书写能力。</p>
     </header>
     <div class="tabs-container">
-        <div id="tab-counting" class="tab-btn active">数图形练习</div>
+        <div id="tab-counting" class="tab-btn active" onclick="switchMathTab('counting')">数图形练习</div>
+        <div id="tab-writing" class="tab-btn" onclick="switchMathTab('writing')">数字连连看</div>
     </div>
-    <div class="card">
-        <div style="display: flex; flex-direction: column; gap: 32px;">
-            <!-- 设置区 -->
-            <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; align-items: flex-end;">
-                <div class="input-group">
-                    <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">练习主题</label>
-                    <select id="math_category" onchange="updateIconPreview()" class="apple-select">
-                        <option value="fruits">素材库 (SVG)</option>
-                        <option value="shapes">基础几何图形</option>
-                    </select>
-                </div>
-                <div class="input-group">
-                    <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">种类 (Max 6)</label>
-                    <input type="number" id="icon_types" min="1" max="6" value="3" class="apple-input">
-                </div>
-                <div class="input-group">
-                    <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">总量 (Max 30)</label>
-                    <input type="number" id="total_count" min="1" max="30" value="15" class="apple-input">
-                </div>
-                <div class="input-group">
-                    <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">页数 (1-10)</label>
-                    <input type="number" id="page_count" min="1" max="10" value="1" class="apple-input">
-                </div>
-                <div class="input-group">
-                    <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">纸张大小</label>
-                    <select id="math_paper_size" class="apple-select">
-                        <option value="Letter" selected>Letter (8.5x11in)</option>
-                        <option value="A4">A4 (210x297mm)</option>
-                    </select>
-                </div>
-                <button id="btn-generate-math" onclick="generateMathPDF()" style="height: 46px; padding: 0 20px;">生成练习帖</button>
-            </div>
 
-            <!-- 图标预览 -->
-            <div id="icon-preview-container" style="padding: 24px; background: #fbfbfd; border-radius: 16px; border: 1px solid #e5e5e7;">
-                <label style="font-size: 11px; font-weight: 700; color: #86868b; display: block; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px;">当前主题包含的图案：</label>
-                <div id="icon-list" style="display: flex; gap: 16px; flex-wrap: wrap;">
-                    <!-- JS 动态注入 -->
-                </div>
+    <!-- 数图形面板 -->
+    <div id="math-counting-controls" class="card">
+        <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; align-items: flex-end;">
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">练习主题</label>
+                <select id="math_category" onchange="updateIconPreview()" class="apple-select">
+                    <option value="fruits">素材库 (SVG)</option>
+                    <option value="shapes">基础几何图形</option>
+                </select>
             </div>
-
-            <div id="math-error-msg" style="color: #ff3b30; font-size: 14px; display: none; font-weight: 500; text-align: center; padding: 10px; background: #fff2f2; border-radius: 8px;">
-                ⚠️ 请确保：总数 >= 种类数，页数 1-10。
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">种类 (Max 6)</label>
+                <input type="number" id="icon_types" min="1" max="6" value="3" class="apple-input">
             </div>
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">总量 (Max 30)</label>
+                <input type="number" id="total_count" min="1" max="30" value="15" class="apple-input">
+            </div>
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">页数 (1-10)</label>
+                <input type="number" id="page_count" min="1" max="10" value="1" class="apple-input">
+            </div>
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">纸张</label>
+                <select id="math_paper_size" class="apple-select">
+                    <option value="Letter" selected>Letter</option>
+                    <option value="A4">A4</option>
+                </select>
+            </div>
+            <button onclick="generateMathPDF()" id="btn-math-counting">生成练习帖</button>
+        </div>
+        <div id="icon-preview-container" style="margin-top: 24px; padding: 20px; background: #fbfbfd; border-radius: 12px; border: 1px solid #e5e5e7;">
+            <div id="icon-list" style="display: flex; gap: 12px; flex-wrap: wrap;"></div>
         </div>
     </div>
+
+    <!-- 数字连连看面板 (已简化页数选择) -->
+    <div id="math-writing-controls" class="card" style="display:none;">
+        <div style="display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; align-items: flex-end;">
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">起始数字</label>
+                <input type="number" id="start_num" min="0" value="1" class="apple-input">
+            </div>
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">结束数字</label>
+                <input type="number" id="end_num" min="1" value="15" class="apple-input">
+            </div>
+            <div class="input-group">
+                <label style="font-size: 13px; font-weight: 600; color: #86868b; margin-bottom: 8px; display: block;">纸张大小</label>
+                <select id="write_paper_size" class="apple-select">
+                    <option value="Letter" selected>Letter (8.5x11in)</option>
+                    <option value="A4">A4 (210x297mm)</option>
+                </select>
+            </div>
+            <button onclick="generateWritingPDF()" id="btn-math-writing">生成闯关地图</button>
+        </div>
+        <p style="margin-top: 16px; font-size: 13px; color: #86868b;">💡 规则：系统将根据数字范围自动分页（每页约 15 个）。描红数字，并寻找下一个数字进行连线。</p>
+    </div>
+
+    <div id="math-error-msg" style="color: #ff3b30; font-size: 14px; display: none; font-weight: 500; text-align: center; padding: 10px; background: #fff2f2; border-radius: 8px; margin-bottom: 20px;"></div>
     
-    <div id="math-preview" style="display:none; width: 100%; height: 850px; border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.12); background: #fff; border: 1px solid #d2d2d7; margin-top: 40px;">
+    <div id="math-preview" style="display:none; width: 100%; height: 850px; border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.12); background: #fff; border: 1px solid #d2d2d7;">
         <iframe id="math-frame" style="width:100%; height:100%; border:none;"></iframe>
     </div>
 </div>
@@ -67,14 +83,22 @@
     }
     .apple-input:focus, .apple-select:focus { border-color: #0071e3; box-shadow: 0 0 0 4px rgba(0,113,227,0.15); }
     .icon-thumbnail {
-        width: 64px; height: 64px; background: white; border-radius: 12px; border: 1px solid #e5e5e7;
-        display: flex; align-items: center; justify-content: center; padding: 8px;
+        width: 52px; height: 52px; background: white; border-radius: 10px; border: 1px solid #e5e5e7;
+        display: flex; align-items: center; justify-content: center; padding: 6px;
         box-shadow: 0 2px 6px rgba(0,0,0,0.04); transition: all 0.2s ease;
     }
-    .icon-thumbnail:hover { transform: translateY(-3px); border-color: #0071e3; box-shadow: 0 8px 20px rgba(0,0,0,0.08); }
 </style>
 
 <script>
+    let mathTab = 'counting';
+    function switchMathTab(tab) {
+        mathTab = tab;
+        document.querySelectorAll('#panel-learn-number .tab-btn').forEach(b => b.classList.remove('active'));
+        document.getElementById(`tab-${tab}`).classList.add('active');
+        document.getElementById('math-counting-controls').style.display = (tab === 'counting') ? 'block' : 'none';
+        document.getElementById('math-writing-controls').style.display = (tab === 'writing') ? 'block' : 'none';
+    }
+
     let allCategories = {};
     async function initMathTool() {
         try {
@@ -86,14 +110,12 @@
 
     function calculateBBox(paths) {
         let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
-        // 增强正则：匹配所有数字，包括带逗号的
         const numRegex = /-?\d+\.?\d*/g;
         paths.forEach(path => {
             const matches = path.match(numRegex);
             if (matches) {
                 for (let i=0; i<matches.length; i+=2) {
-                    const x = parseFloat(matches[i]);
-                    const y = parseFloat(matches[i+1]);
+                    const x = parseFloat(matches[i]); const y = parseFloat(matches[i+1]);
                     if (!isNaN(x) && !isNaN(y)) {
                         if (x < minX) minX = x; if (x > maxX) maxX = x;
                         if (y < minY) minY = y; if (y > maxY) maxY = y;
@@ -118,7 +140,6 @@
             const viewBox = calculateBBox(icon.Paths);
             const pathsHtml = icon.Paths.map(p => `<path d="${p}" fill="none" stroke="black" stroke-width="2%" stroke-linecap="round" stroke-linejoin="round" />`).join('');
             div.innerHTML = `<svg viewBox="${viewBox}" style="width: 100%; height: 100%; overflow: visible;">${pathsHtml}</svg>`;
-            div.title = icon.Name;
             container.appendChild(div);
         });
     }
@@ -129,16 +150,9 @@
         const page_count = parseInt(document.getElementById('page_count').value || 1);
         const category = document.getElementById('math_category').value;
         const paper_size = document.getElementById('math_paper_size').value;
-        const errorMsg = document.getElementById('math-error-msg');
+        if (total_count < icon_types) { alert('总量必须大于种类'); return; }
         
-        if (total_count < icon_types || icon_types > 6 || total_count > 30) {
-            errorMsg.style.display = 'block';
-            return;
-        }
-        errorMsg.style.display = 'none';
-
-        const btn = document.getElementById('btn-generate-math');
-        const originalText = btn.innerText;
+        const btn = document.getElementById('btn-math-counting');
         btn.innerText = '生成中...'; btn.disabled = true;
         try {
             const response = await fetch('/api/learn-number/counting', {
@@ -147,14 +161,29 @@
                 body: JSON.stringify({ total_count, icon_types, page_count, category, paper_size })
             });
             const blob = await response.blob();
-            const url = URL.createObjectURL(blob);
             document.getElementById('math-preview').style.display = 'block';
-            document.getElementById('math-frame').src = url;
-        } catch (e) {
-            alert('生成失败: ' + e);
-        } finally {
-            btn.innerText = originalText; btn.disabled = false;
-        }
+            document.getElementById('math-frame').src = URL.createObjectURL(blob);
+        } finally { btn.innerText = '生成练习帖'; btn.disabled = false; }
+    }
+
+    async function generateWritingPDF() {
+        const start_num = parseInt(document.getElementById('start_num').value);
+        const end_num = parseInt(document.getElementById('end_num').value);
+        const paper_size = document.getElementById('write_paper_size').value;
+        if (end_num <= start_num) { alert('结束数字必须大于起始数字'); return; }
+
+        const btn = document.getElementById('btn-math-writing');
+        btn.innerText = '生成中...'; btn.disabled = true;
+        try {
+            const response = await fetch('/api/learn-number/writing', {
+                method: 'POST',
+                headers: { 'Content-Type': 'application/json' },
+                body: JSON.stringify({ start_num, end_num, paper_size })
+            });
+            const blob = await response.blob();
+            document.getElementById('math-preview').style.display = 'block';
+            document.getElementById('math-frame').src = URL.createObjectURL(blob);
+        } finally { btn.innerText = '生成闯关地图'; btn.disabled = false; }
     }
 
     setTimeout(initMathTool, 200);