zhihao.gu
/
PokemonCardSearch


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Pokemon Card Search</title>
    <style>
        :root {
            --primary-color: #4F46E5; /* 靛蓝色 */
            --primary-hover: #4338ca;
            --bg-color: #f3f4f6;
            --card-bg: #ffffff;
            --text-main: #1f2937;
            --text-sub: #6b7280;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }

        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            line-height: 1.5;
            padding: 2rem 1rem;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        header {
            text-align: center;
            margin-bottom: 2rem;
        }
        header h1 {
            font-size: 2.5rem;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }
        header p { color: var(--text-sub); }

        /* 搜索上传区域 */
        .search-panel {
            background: var(--card-bg);
            padding: 2rem;
            border-radius: 16px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            max-width: 600px;
            margin: 0 auto 3rem auto;
            text-align: center;
        }

        .upload-zone {
            border: 2px dashed #d1d5db;
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 1.5rem;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            background-color: #fff;
        }

        .upload-zone:hover {
            border-color: var(--primary-color);
            background-color: #f9fafb;
        }

        /* 拖拽激活时的样式 */
        .upload-zone.drag-active {
            border-color: var(--primary-color);
            background-color: #eef2ff; /* 浅蓝色背景 */
            transform: scale(1.02);
        }

        #preview-container {
            display: none;
            margin-top: 1rem;
        }

        #preview-img {
            max-width: 100%;
            max-height: 300px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        input[type="file"] { display: none; }

        .upload-label {
            display: block;
            color: var(--text-sub);
            font-weight: 500;
            pointer-events: none;
        }

        .controls {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.2s;
            display: inline-flex;
            align-items: center;
        }

        .search-btn:hover { background-color: var(--primary-hover); }
        .search-btn:disabled { background-color: #9ca3af; cursor: not-allowed; }

        .top-n-input {
            padding: 0.75rem;
            border: 1px solid #d1d5db;
            border-radius: 8px;
            width: 80px;
            text-align: center;
        }

        /* 结果展示区域 */
        .results-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 1.5rem;
        }

        .result-card {
            background: var(--card-bg);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
            transition: transform 0.2s, box-shadow 0.2s;
            display: flex;
            flex-direction: column;
        }

        .result-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        }

        .card-img-wrapper {
            width: 100%;
            height: 280px;
            background-color: #e5e7eb;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .card-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .card-info { padding: 1rem; }

        .card-title {
            font-size: 1.1rem;
            font-weight: bold;
            color: var(--text-main);
            margin-bottom: 0.25rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .card-meta {
            font-size: 0.875rem;
            color: var(--text-sub);
            margin-bottom: 0.75rem;
            display: flex;
            justify-content: space-between;
        }

        .score-bar-bg {
            height: 6px;
            background-color: #e5e7eb;
            border-radius: 3px;
            overflow: hidden;
            margin-top: 0.5rem;
        }

        .score-bar-fill {
            height: 100%;
            background-color: #10b981;
            width: 0%;
            transition: width 0.5s ease-out;
        }

        .score-text {
            font-size: 0.75rem;
            color: var(--text-sub);
            margin-top: 4px;
            text-align: right;
        }

        .spinner {
            border: 3px solid rgba(255,255,255,0.3);
            border-radius: 50%;
            border-top: 3px solid white;
            width: 20px;
            height: 20px;
            animation: spin 1s linear infinite;
            margin-right: 8px;
            display: none;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @media (max-width: 640px) {
            header h1 { font-size: 1.8rem; }
            .results-grid { grid-template-columns: 1fr 1fr; }
            .card-img-wrapper { height: 200px; }
        }
    </style>
</head>
<body>

    <div class="container">
        <header>
            <h1>🔍 Pokemon Card Search</h1>
            <p>Upload a card image to find similar matches</p>
        </header>

        <div class="search-panel">
            <!-- 上传区域：增加 id 和 ondrop 处理 -->
            <div class="upload-zone" id="dropZone">
                <div id="upload-placeholder">
                    <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="#9ca3af" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                        <rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect>
                        <circle cx="8.5" cy="8.5" r="1.5"></circle>
                        <polyline points="21 15 16 10 5 21"></polyline>
                    </svg>
                    <span class="upload-label">点击或拖拽上传图片</span>
                </div>

                <div id="preview-container">
                    <img id="preview-img" src="" alt="Input Preview">
                    <p style="margin-top:0.5rem; color:var(--text-sub); font-size:0.9rem;">点击可重新选择</p>
                </div>

                <!-- 隐藏的 input -->
                <input type="file" id="imgInput" accept="image/*">
            </div>

            <div class="controls">
                <div style="display:flex; align-items:center; gap:0.5rem;">
                    <label for="topN" style="font-weight:500; color:var(--text-sub)">Top Results:</label>
                    <input type="number" id="topN" class="top-n-input" value="5" min="1" max="20">
                </div>
                <button class="search-btn" onclick="searchImage()" id="searchBtn">
                    <div class="spinner" id="loadingSpinner"></div>
                    Search
                </button>
            </div>
        </div>

        <div id="resultsArea">
            <h3 style="margin-bottom: 1rem; color: var(--text-sub); display:none;" id="resultTitle">Search Results</h3>
            <div class="results-grid" id="resultsGrid"></div>
        </div>
    </div>

    <script>
        const imgInput = document.getElementById('imgInput');
        const dropZone = document.getElementById('dropZone');
        const previewContainer = document.getElementById('preview-container');
        const previewImg = document.getElementById('preview-img');
        const placeholder = document.getElementById('upload-placeholder');

        // --- 核心改动：处理拖拽事件 ---

        // 1. 阻止浏览器默认行为 (打开图片)
        ['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
            dropZone.addEventListener(eventName, preventDefaults, false);
        });

        function preventDefaults(e) {
            e.preventDefault();
            e.stopPropagation();
        }

        // 2. 视觉反馈 (高亮)
        ['dragenter', 'dragover'].forEach(eventName => {
            dropZone.addEventListener(eventName, () => dropZone.classList.add('drag-active'), false);
        });

        ['dragleave', 'drop'].forEach(eventName => {
            dropZone.addEventListener(eventName, () => dropZone.classList.remove('drag-active'), false);
        });

        // 3. 处理文件放置 (Drop)
        dropZone.addEventListener('drop', handleDrop, false);

        function handleDrop(e) {
            const dt = e.dataTransfer;
            const files = dt.files;

            if (files && files.length > 0) {
                // 将拖入的文件赋值给 input 元素，方便后续搜索逻辑使用
                imgInput.files = files;
                updatePreview(files[0]);
            }
        }

        // 4. 处理点击上传 (Click)
        dropZone.addEventListener('click', () => imgInput.click());

        // 5. 阻止 input 的点击事件冒泡 (防止触发 dropZone 的 click 导致死循环)
        imgInput.addEventListener('click', (e) => e.stopPropagation());

        // 6. 监听 Input 变化 (点击选择文件后触发)
        imgInput.onchange = (e) => {
            if (imgInput.files && imgInput.files[0]) {
                updatePreview(imgInput.files[0]);
            }
        };

        // --- 统一的预览逻辑 ---
        function updatePreview(file) {
            if (file) {
                placeholder.style.display = 'none';
                previewContainer.style.display = 'block';
                previewImg.src = URL.createObjectURL(file);
            }
        }

        // --- 搜索逻辑 (保持不变) ---
        async function searchImage() {
            if (!imgInput.files[0]) {
                alert("请先选择一张图片！");
                return;
            }

            const btn = document.getElementById('searchBtn');
            const spinner = document.getElementById('loadingSpinner');
            const topN = document.getElementById('topN').value;
            const grid = document.getElementById('resultsGrid');
            const resultTitle = document.getElementById('resultTitle');

            btn.disabled = true;
            spinner.style.display = 'block';
            grid.innerHTML = '';
            resultTitle.style.display = 'none';

            try {
                const formData = new FormData();
                formData.append('file', imgInput.files[0]);

                const res = await fetch(`/api/search/image?top_k=${topN}`, {
                    method: 'POST',
                    body: formData
                });

                if (!res.ok) throw new Error("Server Error");

                const data = await res.json();
                renderResults(data.results);

            } catch (error) {
                alert("搜索出错: " + error.message);
            } finally {
                btn.disabled = false;
                spinner.style.display = 'none';
                resultTitle.style.display = 'block';
            }
        }

        function renderResults(items) {
            const grid = document.getElementById('resultsGrid');

            if (!items || items.length === 0) {
                grid.innerHTML = '<p style="text-align:center; grid-column: 1/-1; color:#666;">未找到相似结果</p>';
                return;
            }

            items.forEach((item, index) => {
                const percentage = (item.score * 100).toFixed(1);
                const cardNumDisplay = (item.card_num && item.card_num !== -1) ? `#${item.card_num}` : '';

                const cardHtml = `
                    <div class="result-card" style="opacity: 0; animation: fadeIn 0.5s forwards ${index * 0.1}s">
                        <div class="card-img-wrapper">
                            <img src="${item.img_url}" alt="${item.card_name}" onerror="this.src='https://via.placeholder.com/200?text=Image+Not+Found'">
                        </div>
                        <div class="card-info">
                            <div class="card-title" title="${item.card_name}">${item.card_name}</div>
                            <div class="card-meta">
                                <span>${item.lang.toUpperCase()}</span>
                                <span>${cardNumDisplay}</span>
                            </div>
                            <div class="score-bar-bg">
                                <div class="score-bar-fill" style="width: ${percentage}%"></div>
                            </div>
                            <div class="score-text">Sim: ${percentage}%</div>
                        </div>
                    </div>
                `;
                grid.insertAdjacentHTML('beforeend', cardHtml);
            });
        }

        const style = document.createElement('style');
        style.innerHTML = `
            @keyframes fadeIn {
                from { opacity: 0; transform: translateY(10px); }
                to { opacity: 1; transform: translateY(0); }
            }
        `;
        document.head.appendChild(style);
    </script>
</body>
</html>