{% extends "layout.html" %}

{% block title %}上传管理 - 家谱管理系统{% endblock %}

{% block extra_css %}
<style>
    .thumbnail-img {
        width: 50px;
        height: 70px;
        object-fit: cover;
        border-radius: 4px;
        cursor: pointer;
        border: 1px solid #dee2e6;
        transition: transform 0.2s;
        background-color: #f8f9fa;
    }
    .thumbnail-img:hover {
        transform: scale(1.5);
        box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        z-index: 10;
        position: relative;
    }

    /* Modal Image Viewer Styles */
    .modal-image-container {
        height: 85vh;
        display: flex;
        flex-direction: column;
    }
    .image-toolbar {
        background: #e9ecef;
        padding: 5px 10px;
        border-bottom: 1px solid #dee2e6;
        display: flex;
        gap: 10px;
        align-items: center;
        flex-wrap: wrap;
    }
    .image-viewer { 
        flex: 1; 
        border: 1px solid #ccc; 
        background: #f0f0f0; 
        overflow: hidden; 
        text-align: center; 
        position: relative; 
        cursor: grab;
        user-select: none;
    }
    .image-viewer:active {
        cursor: grabbing;
    }
    .image-wrapper {
        display: inline-block;
        transition: transform 0.2s ease-out;
        transform-origin: center center;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }
    .image-wrapper img {
        max-width: 100%;
        max-height: 100%;
        display: block;
        pointer-events: none;
        user-select: none;
        transition: filter 0.2s;
        box-shadow: 0 0 20px rgba(0,0,0,0.1);
    }
    .magnifier-glass {
        position: absolute;
        border: 3px solid #000;
        border-radius: 50%;
        cursor: none;
        width: 150px;
        height: 150px;
        box-shadow: 0 0 10px rgba(0,0,0,0.5);
        display: none;
        z-index: 1000;
        background-repeat: no-repeat;
        background-color: white;
        pointer-events: none;
    }
</style>
{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
    <h2><i class="bi bi-file-earmark-arrow-up"></i> 家谱扫描件管理</h2>
    <a href="{{ url_for('upload') }}" class="btn btn-primary">
        <i class="bi bi-cloud-upload me-1"></i> 上传家谱文件
    </a>
</div>

<div class="card shadow-sm mb-4">
    <div class="card-body">
        <form method="GET" action="{{ url_for('index') }}" class="row g-3 align-items-end">
            <div class="col-md-2">
                <label class="form-label">版本名称</label>
                <input type="text" name="version" class="form-control" value="{{ version }}" placeholder="模糊搜索">
            </div>
            <div class="col-md-2">
                <label class="form-label">版本来源</label>
                <input type="text" name="source" class="form-control" value="{{ source }}" placeholder="模糊搜索">
            </div>
            <div class="col-md-2">
                <label class="form-label">提供人</label>
                <input type="text" name="person" class="form-control" value="{{ person }}" placeholder="模糊搜索">
            </div>
            <div class="col-md-2">
                <label class="form-label">文件类型</label>
                <select name="file_type" class="form-select">
                    <option value="">全部</option>
                    <option value="图片" {% if file_type == '图片' %}selected{% endif %}>图片</option>
                    <option value="PDF" {% if file_type == 'PDF' %}selected{% endif %}>PDF</option>
                </select>
            </div>
            <div class="col-md-4">
                <button type="submit" class="btn btn-primary"><i class="bi bi-search"></i> 搜索</button>
                <a href="{{ url_for('index') }}" class="btn btn-outline-secondary">重置</a>
            </div>
        </form>
    </div>
</div>

<div class="card shadow-sm">
    <div class="card-body p-0">
        <div class="table-responsive">
            <table class="table table-hover mb-0">
                <thead class="table-light">
                    <tr>
                        <th class="px-4">文件名</th>
                        <th>页码</th>
                        <th>提供人</th>
                        <th>AI 解析状态</th>
                        <th>上传时间</th>
                        <th class="text-center">操作</th>
                    </tr>
                </thead>
                <tbody>
                    {% for record in records %}
                    <tr>
                        <td class="px-4">
                            <div class="d-flex align-items-center">
                                <img src="{{ record.oss_url }}" class="thumbnail-img me-3 list-preview-img" data-url="{{ record.oss_url }}" data-page="{{ record.page_number or '' }}" title="点击预览" onclick="openImageViewer('{{ record.oss_url }}', '{{ record.page_number or '' }}')">
                                <div class="text-break fw-bold">
                                    {% if record.file_type == 'PDF' %}
                                    <span class="badge bg-danger me-1">PDF</span>
                                    {% elif record.file_type == '图片' %}
                                    <span class="badge bg-success me-1">图片</span>
                                    {% endif %}
                                    {{ record.file_name }}
                                </div>
                            </div>
                        </td>
                        <td>
                            {% if record.page_number %}
                                <span class="badge bg-info text-dark">第 {{ record.page_number }} 页</span>
                            {% else %}
                                <span class="text-muted">未知</span>
                            {% endif %}
                        </td>
                        <td>
                            <div class="fw-bold">{{ record.upload_person or '未知' }}</div>
                            {% if record.genealogy_version or record.genealogy_source %}
                            <div class="small text-muted mt-1" style="font-size: 0.75rem;">
                                {% if record.genealogy_version %}
                                <span title="版本名称"><i class="bi bi-tag"></i> {{ record.genealogy_version }}</span><br>
                                {% endif %}
                                {% if record.genealogy_source %}
                                <span title="版本来源"><i class="bi bi-archive"></i> {{ record.genealogy_source }}</span>
                                {% endif %}
                            </div>
                            {% endif %}
                        </td>
                        <td>
                            {% if record.ai_status == 2 %}
                                <span class="badge bg-success"><i class="bi bi-check-circle"></i> 解析成功</span>
                            {% elif record.ai_status == 1 %}
                                <span class="badge bg-warning text-dark"><i class="bi bi-hourglass-split"></i> 解析中...</span>
                            {% elif record.ai_status == 3 %}
                                <span class="badge bg-danger"><i class="bi bi-x-circle"></i> 解析失败</span>
                            {% else %}
                                <span class="badge bg-secondary">未解析</span>
                            {% endif %}
                        </td>
                        <td>{{ record.upload_time }}</td>
                        <td class="text-center">
                            <button onclick="openImageViewer('{{ record.oss_url }}', '{{ record.page_number or '' }}')" class="btn btn-sm btn-outline-info list-preview-btn" data-url="{{ record.oss_url }}" data-page="{{ record.page_number or '' }}" title="查看原图">
                                <i class="bi bi-eye"></i>
                            </button>
                            
                            {% if record.ai_status == 2 %}
                                <a href="{{ url_for('add_member', record_id=record.id) }}" class="btn btn-sm btn-success" title="查看解析并录入">
                                    <i class="bi bi-magic"></i> 录入
                                </a>
                                <button onclick="reStartAiAnalysis({{ record.id }})" class="btn btn-sm btn-outline-warning" title="重新AI解析">
                                    <i class="bi bi-arrow-repeat"></i> 重析
                                </button>
                            {% else %}
                                <button onclick="startAiAnalysis({{ record.id }})" class="btn btn-sm btn-outline-primary" title="AI 解析">
                                    <i class="bi bi-robot"></i> 解析
                                </button>
                                <a href="{{ url_for('add_member', record_id=record.id) }}" class="btn btn-sm btn-outline-secondary" title="手动录入">
                                    <i class="bi bi-pencil"></i> 手动
                                </a>
                            {% endif %}

                            <form action="{{ url_for('delete_upload', record_id=record.id) }}" method="POST" class="d-inline" onsubmit="return confirm('确定要删除此文件记录吗？此操作无法撤销。');">
                                <button type="submit" class="btn btn-sm btn-outline-danger" title="删除">
                                    <i class="bi bi-trash"></i>
                                </button>
                            </form>
                        </td>
                    </tr>
                    {% endfor %}
                    {% if not records %}
                    <tr>
                        <td colspan="4" class="text-center py-5 text-muted">
                            <i class="bi bi-folder-x fs-1 d-block mb-2"></i>
                            暂无扫描件数据，请先上传。
                        </td>
                    </tr>
                    {% endif %}
                </tbody>
            </table>
        </div>
    </div>
    {% if total_pages > 1 or total > 0 %}
    <div class="card-footer d-flex justify-content-between align-items-center bg-white border-top-0 pt-3">
        <div class="text-muted small">
            共 <strong>{{ total }}</strong> 条记录，当前第 {{ page }} / {{ total_pages if total_pages > 0 else 1 }} 页
        </div>
        {% if total_pages > 1 %}
        <nav>
            <ul class="pagination pagination-sm mb-0">
                <li class="page-item {% if page == 1 %}disabled{% endif %}">
                    <a class="page-link" href="{{ url_for('index', page=page-1, version=version, source=source, person=person, file_type=file_type) }}">上一页</a>
                </li>
                
                {% set start_page = page - 2 if page - 2 > 0 else 1 %}
                {% set end_page = start_page + 4 if start_page + 4 <= total_pages else total_pages %}
                {% set start_page = end_page - 4 if end_page - 4 > 0 else 1 %}
                
                {% for p in range(start_page, end_page + 1) %}
                <li class="page-item {% if p == page %}active{% endif %}">
                    <a class="page-link" href="{{ url_for('index', page=p, version=version, source=source, person=person, file_type=file_type) }}">{{ p }}</a>
                </li>
                {% endfor %}
                
                <li class="page-item {% if page == total_pages %}disabled{% endif %}">
                    <a class="page-link" href="{{ url_for('index', page=page+1, version=version, source=source, person=person, file_type=file_type) }}">下一页</a>
                </li>
            </ul>
        </nav>
        {% endif %}
    </div>
    {% endif %}
</div>

<!-- Image Viewer Modal -->
<div class="modal fade" id="imageModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog modal-fullscreen">
        <div class="modal-content bg-light">
            <div class="modal-header py-2">
                <h5 class="modal-title fs-6"><i class="bi bi-image"></i> 扫描件预览 <span id="modalPageNum" class="badge bg-secondary ms-2"></span></h5>
                <div class="ms-auto me-3 text-muted small" id="listImageIndexIndicator"></div>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body p-0 modal-image-container position-relative">
                <div class="image-toolbar">
                    <div class="btn-group btn-group-sm">
                        <button type="button" class="btn btn-outline-secondary" onclick="rotateImage(-90)" title="左旋90°"><i class="bi bi-arrow-counterclockwise"></i></button>
                        <button type="button" class="btn btn-outline-secondary" onclick="rotateImage(90)" title="右旋90°"><i class="bi bi-arrow-clockwise"></i></button>
                    </div>
                    <div class="d-flex align-items-center gap-2 mx-3 border-start border-end px-3">
                        <i class="bi bi-brightness-high" title="亮度"></i>
                        <input type="range" class="form-range" min="50" max="150" value="100" id="brightnessRange" oninput="updateImageFilter()" style="width: 80px;">
                        <i class="bi bi-circle-half ms-2" title="对比度"></i>
                        <input type="range" class="form-range" min="50" max="200" value="100" id="contrastRange" oninput="updateImageFilter()" style="width: 80px;">
                        <button class="btn btn-link btn-sm text-decoration-none py-0" onclick="resetFilters()">重置</button>
                    </div>
                    <div class="form-check form-switch ms-auto mb-0" title="开启后鼠标悬停图片可局部放大">
                        <input class="form-check-input" type="checkbox" id="magnifierSwitch">
                        <label class="form-check-label small" for="magnifierSwitch">🔍 放大镜</label>
                    </div>
                </div>
                
                <button class="btn btn-dark position-absolute top-50 start-0 translate-middle-y ms-3 rounded-circle shadow" id="listPrevImageBtn" style="width: 48px; height: 48px; opacity: 0.7; z-index: 1050; display: none;">
                    <i class="bi bi-chevron-left fs-4"></i>
                </button>
                <button class="btn btn-dark position-absolute top-50 end-0 translate-middle-y me-3 rounded-circle shadow" id="listNextImageBtn" style="width: 48px; height: 48px; opacity: 0.7; z-index: 1050; display: none;">
                    <i class="bi bi-chevron-right fs-4"></i>
                </button>

                <div class="image-viewer shadow-inner" id="viewer">
                    <div id="magnifier" class="magnifier-glass"></div>
                    <div id="imageWrapper" class="image-wrapper">
                        <img id="refImage" src="" alt="家谱图片" draggable="false">
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
    // --- Image Viewer Logic ---
    let imgRotation = 0;
    let imgBrightness = 100;
    let imgContrast = 100;
    let isDragging = false;
    let hasDragged = false;
    let startX = 0, startY = 0;
    let currentX = 0, currentY = 0;
    let isZoomedIn = false;
    const ZOOM_LEVEL = 2.0;

    let currentListImages = [];
    let currentListIndex = 0;

    document.addEventListener('DOMContentLoaded', () => {
        // Collect all previewable images from the current table
        const imgs = document.querySelectorAll('.list-preview-img');
        imgs.forEach((img, idx) => {
            currentListImages.push({
                url: img.dataset.url,
                page: img.dataset.page
            });
        });
        
        // Add click events to buttons
        document.getElementById('listPrevImageBtn').addEventListener('click', () => {
            if (currentListIndex > 0) openListImage(currentListIndex - 1);
        });
        
        document.getElementById('listNextImageBtn').addEventListener('click', () => {
            if (currentListIndex < currentListImages.length - 1) openListImage(currentListIndex + 1);
        });
        
        // Keyboard navigation
        document.getElementById('imageModal').addEventListener('keydown', (e) => {
            if (e.key === 'ArrowLeft' && currentListIndex > 0) {
                openListImage(currentListIndex - 1);
            } else if (e.key === 'ArrowRight' && currentListIndex < currentListImages.length - 1) {
                openListImage(currentListIndex + 1);
            }
        });
    });

    function openListImage(index) {
        if (index < 0 || index >= currentListImages.length) return;
        currentListIndex = index;
        const data = currentListImages[index];
        openImageViewer(data.url, data.page);
    }

    function openImageViewer(url, pageNum) {
        // Update index if opened via direct click instead of arrows
        const foundIdx = currentListImages.findIndex(img => img.url === url);
        if (foundIdx !== -1) currentListIndex = foundIdx;
        
        const modalEl = document.getElementById('imageModal');
        let modal = bootstrap.Modal.getInstance(modalEl);
        if (!modal) {
            modal = new bootstrap.Modal(modalEl);
        }
        
        document.getElementById('refImage').src = url;
        document.getElementById('modalPageNum').textContent = pageNum ? '第 ' + pageNum + ' 页' : '';
        
        // Update indicator and buttons
        if (currentListImages.length > 0 && foundIdx !== -1) {
            document.getElementById('listImageIndexIndicator').textContent = `${currentListIndex + 1} / ${currentListImages.length}`;
            document.getElementById('listPrevImageBtn').style.display = currentListIndex === 0 ? 'none' : 'block';
            document.getElementById('listNextImageBtn').style.display = currentListIndex === currentListImages.length - 1 ? 'none' : 'block';
        } else {
            document.getElementById('listImageIndexIndicator').textContent = '';
            document.getElementById('listPrevImageBtn').style.display = 'none';
            document.getElementById('listNextImageBtn').style.display = 'none';
        }

        modal.show();
        resetFilters();
    }

    const viewer = document.getElementById('viewer');
    const magnifier = document.getElementById('magnifier');
    const magnifierSwitch = document.getElementById('magnifierSwitch');
    const imageWrapper = document.getElementById('imageWrapper');
    const refImage = document.getElementById('refImage');
    
    if (imageWrapper) {
        viewer.style.cursor = 'zoom-in';

        viewer.addEventListener('mousedown', (e) => {
            if (e.target.closest('.image-toolbar') || e.target.closest('.magnifier-glass')) return;
            isDragging = true;
            hasDragged = false;
            startX = e.clientX;
            startY = e.clientY;
            viewer.style.cursor = 'grabbing';
            e.preventDefault(); 
        });
        
        window.addEventListener('mousemove', (e) => {
            if (!isDragging) return;
            const dx = e.clientX - startX;
            const dy = e.clientY - startY;
            if (Math.abs(dx) > 2 || Math.abs(dy) > 2) hasDragged = true;
            currentX += dx;
            currentY += dy;
            startX = e.clientX;
            startY = e.clientY;
            updateImageTransform();
        });
        
        window.addEventListener('mouseup', (e) => {
            if (isDragging) {
                isDragging = false;
                viewer.style.cursor = isZoomedIn ? 'grab' : 'zoom-in';
                if (!hasDragged && viewer.contains(e.target)) toggleZoom();
            }
        });
    }

    function toggleZoom() {
        isZoomedIn = !isZoomedIn;
        if (!isZoomedIn) {
            currentX = 0;
            currentY = 0;
        }
        updateImageTransform();
        viewer.style.cursor = isZoomedIn ? 'grab' : 'zoom-in';
    }
    
    viewer.addEventListener('mousemove', function(e) {
        if (!magnifierSwitch.checked || isDragging || !refImage.src) {
            magnifier.style.display = 'none';
            return;
        }
        const rect = refImage.getBoundingClientRect();
        const x = e.clientX - rect.left;
        const y = e.clientY - rect.top;
        
        if (x < 0 || x > rect.width || y < 0 || y > rect.height) {
            magnifier.style.display = 'none';
            return;
        }
        magnifier.style.display = 'block';
        const glassOffset = 20;
        const viewerRect = viewer.getBoundingClientRect();
        magnifier.style.left = (e.clientX - viewerRect.left + glassOffset) + 'px';
        magnifier.style.top = (e.clientY - viewerRect.top + glassOffset) + 'px';
        
        const zoom = 2.5;
        magnifier.style.backgroundImage = `url('${refImage.src}')`;
        magnifier.style.backgroundSize = `${rect.width * zoom}px ${rect.height * zoom}px`;
        magnifier.style.backgroundPosition = `-${x * zoom - 75}px -${y * zoom - 75}px`; 
    });

    function rotateImage(deg) {
        imgRotation = (imgRotation + deg) % 360;
        updateImageTransform();
    }
    
    function updateImageFilter() {
        imgBrightness = document.getElementById('brightnessRange').value;
        imgContrast = document.getElementById('contrastRange').value;
        applyImageFilters();
    }
    
    function resetFilters() {
        imgRotation = 0;
        imgBrightness = 100;
        imgContrast = 100;
        currentX = 0;
        currentY = 0;
        isZoomedIn = false;
        document.getElementById('brightnessRange').value = 100;
        document.getElementById('contrastRange').value = 100;
        if(magnifierSwitch) magnifierSwitch.checked = false;
        updateImageTransform();
        applyImageFilters();
        if(viewer) viewer.style.cursor = 'zoom-in';
    }
    
    function updateImageTransform() {
        if (imageWrapper) {
            const scale = isZoomedIn ? ZOOM_LEVEL : 1;
            imageWrapper.style.transform = `translate(calc(-50% + ${currentX}px), calc(-50% + ${currentY}px)) rotate(${imgRotation}deg) scale(${scale})`;
        }
    }
    
    function applyImageFilters() {
        if (refImage) {
            refImage.style.filter = `brightness(${imgBrightness}%) contrast(${imgContrast}%)`;
        }
    }

    function startAiAnalysis(recordId) {
        if (!confirm('确定要开始 AI 解析吗？这可能需要一些时间。')) return;
        
        // Optimistic UI update
        const btn = event.currentTarget;
        const originalHtml = btn.innerHTML;
        btn.disabled = true;
        btn.innerHTML = '<span class="spinner-border spinner-border-sm"></span> 解析中...';
        
        fetch('/manager/api/start_analysis/' + recordId, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            }
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                // Reload to show status update (or update DOM dynamically)
                window.location.reload();
            } else {
                alert('启动解析失败: ' + data.message);
                btn.innerHTML = originalHtml;
                btn.disabled = false;
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('请求失败，请重试');
            btn.innerHTML = originalHtml;
            btn.disabled = false;
        });
    }

    function reStartAiAnalysis(recordId) {
        if (!confirm('确定要重新进行 AI 解析吗？这将覆盖原有的解析结果。')) return;
        
        const btn = event.currentTarget;
        const originalHtml = btn.innerHTML;
        btn.disabled = true;
        btn.innerHTML = '<span class="spinner-border spinner-border-sm"></span> 解析中...';
        
        fetch('/manager/api/start_analysis/' + recordId, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            }
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                window.location.reload();
            } else {
                alert('启动解析失败: ' + data.message);
                btn.innerHTML = originalHtml;
                btn.disabled = false;
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('请求失败，请重试');
            btn.innerHTML = originalHtml;
            btn.disabled = false;
        });
    }
</script>
{% endblock %}