// static/script.js
let selectedFile = null;
const uploadSection = document.getElementById('uploadSection');
const uploadArea = document.getElementById('uploadArea');
const fileInput = document.getElementById('fileInput');
const uploadBtn = document.getElementById('uploadBtn');
const loading = document.getElementById('loading');
const resultsSection = document.getElementById('resultsSection');
const errorMessage = document.getElementById('errorMessage');
const taskInfo = document.getElementById('taskInfo');
const geometryData = document.getElementById('geometryData');
const boundingBoxData = document.getElementById('boundingBoxData');
const topologyData = document.getElementById('topologyData');
const featuresData = document.getElementById('featuresData');
const recommendationsData = document.getElementById('recommendationsData');
const metricsData = document.getElementById('metricsData');
const analysisInfo = document.getElementById('analysisInfo');

// 页面加载时初始化
document.addEventListener('DOMContentLoaded', function() {
    console.log('页面加载完成');
    showUploadSection();
});

// 显示上传区域
function showUploadSection() {
    uploadSection.style.display = 'block';
    resultsSection.style.display = 'none';
    resetUploadArea();
}

// 显示结果区域
function showResultsSection() {
    uploadSection.style.display = 'none';
    resultsSection.style.display = 'block';
}

// 重置上传区域
function resetUploadArea() {
    selectedFile = null;
    uploadArea.innerHTML = `
        <div class="upload-icon">📁</div>
        <h3>拖放文件到此处或点击选择</h3>
        <p>最大文件大小: 100MB</p>
        <input type="file" id="fileInput" class="file-input" accept=".stp,.step">
        <button class="upload-btn" onclick="document.getElementById('fileInput').click()">
            选择文件
        </button>
    `;
    uploadBtn.disabled = true;
    hideError();
    loading.style.display = 'none';

    // 重新绑定事件
    const newFileInput = document.getElementById('fileInput');
    newFileInput.addEventListener('change', (e) => {
        if (e.target.files.length > 0) {
            handleFileSelect(e.target.files[0]);
        }
    });
}

// 拖放功能
uploadArea.addEventListener('dragover', (e) => {
    e.preventDefault();
    uploadArea.classList.add('dragover');
});

uploadArea.addEventListener('dragleave', () => {
    uploadArea.classList.remove('dragover');
});

uploadArea.addEventListener('drop', (e) => {
    e.preventDefault();
    uploadArea.classList.remove('dragover');
    const files = e.dataTransfer.files;
    if (files.length > 0) {
        handleFileSelect(files[0]);
    }
});

// 文件选择
fileInput.addEventListener('change', (e) => {
    if (e.target.files.length > 0) {
        handleFileSelect(e.target.files[0]);
    }
});

function handleFileSelect(file) {
    if (!file.name.toLowerCase().endsWith('.stp') && !file.name.toLowerCase().endsWith('.step')) {
        showError('请选择STP或STEP格式的文件');
        return;
    }

    if (file.size > 100 * 1024 * 1024) {
        showError('文件大小不能超过100MB');
        return;
    }

    selectedFile = file;
    uploadArea.innerHTML = `
        <div class="upload-icon">✅</div>
        <h3>已选择文件</h3>
        <p><strong>${file.name}</strong></p>
        <p>大小: ${(file.size / 1024 / 1024).toFixed(2)} MB</p>
    `;
    uploadBtn.disabled = false;
    hideError();
}

async function uploadFile() {
    if (!selectedFile) return;

    loading.style.display = 'block';
    uploadBtn.disabled = true;
    hideError();

    const formData = new FormData();
    formData.append('file', selectedFile);

    try {
        const response = await fetch('/upload', {
            method: 'POST',
            body: formData
        });

        if (!response.ok) {
            throw new Error(`上传失败: ${response.status} ${response.statusText}`);
        }

        const result = await response.json();
        console.log('上传结果:', result);

        // 开始轮询任务状态
        pollTaskStatus(result.task_id);

    } catch (error) {
        showError('上传失败: ' + error.message);
        loading.style.display = 'none';
        uploadBtn.disabled = false;
    }
}

async function pollTaskStatus(taskId) {
    try {
        const response = await fetch(`/status/${taskId}`, {
            method: 'POST'
        });
        const task = await response.json();

        console.log('任务状态:', task.status);
        console.log('完整任务数据:', task);

        updateTaskInfo(task);

        if (task.status === 'completed') {
            loading.style.display = 'none';
            showResultsSection();
            displayAllResults(task);
        } else if (task.status === 'failed') {
            loading.style.display = 'none';
            showError('分析失败: ' + (task.error || '未知错误'));
            uploadBtn.disabled = false;
        } else {
            setTimeout(() => pollTaskStatus(taskId), 1000);
        }

    } catch (error) {
        console.error('轮询错误:', error);
        loading.style.display = 'none';
        showError('查询状态失败: ' + error.message);
        uploadBtn.disabled = false;
    }
}

function updateTaskInfo(task) {
    taskInfo.innerHTML = `
        <div class="data-item">
            <div class="data-label">📋 任务ID</div>
            <div class="data-value">${task.task_id || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">🔄 状态</div>
            <div class="data-value">
                <span class="status-badge status-${task.status}">${getStatusText(task.status)}</span>
            </div>
        </div>
        <div class="data-item">
            <div class="data-label">📁 文件名</div>
            <div class="data-value">${task.filename || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">📏 文件大小</div>
            <div class="data-value">${task.file_size ? formatFileSize(task.file_size) : 'N/A'}</div>
        </div>
    `;
}

function displayAllResults(task) {
    console.log('显示所有结果:', task);

    displayGeometryData(task);
    displayBoundingBoxData(task);
    displayTopologyData(task);

    // 添加模具型腔数据显示
    if (task.cavity_data) {
        displayCavityData(task.cavity_data);
    }
    if (task.key_info) {
        displayKeyInfo(task.key_info);
    }

    displayFeaturesData(task);
    displayRecommendationsData(task);
    displayMetricsData(task);
    displayAnalysisInfo(task);
}

function displayGeometryData(task) {
    if (task.geometry_data) {
        const geo = task.geometry_data;
        geometryData.innerHTML = `
            <div class="data-item">
                <div class="data-label">📦 体积</div>
                <div class="data-value">
                    ${geo.volume ? formatNumber(geo.volume) : 'N/A'}
                    <span class="data-unit">mm³</span>
                </div>
            </div>
            <div class="data-item">
                <div class="data-label">📐 表面积</div>
                <div class="data-value">
                    ${geo.surface_area ? formatNumber(geo.surface_area) : 'N/A'}
                    <span class="data-unit">mm²</span>
                </div>
            </div>
            <div class="data-item">
                <div class="data-label">📏 体积表面积比</div>
                <div class="data-value">
                    ${geo.volume && geo.surface_area ? (geo.volume / geo.surface_area).toFixed(4) : 'N/A'}
                </div>
            </div>
        `;
    } else {
        geometryData.innerHTML = '<div class="data-item"><div class="data-value">无几何数据</div></div>';
    }
}

function displayBoundingBoxData(task) {
    if (task.geometry_data && task.geometry_data.bounding_box) {
        const bbox = task.geometry_data.bounding_box;
        boundingBoxData.innerHTML = `
            <div class="data-item coordinate-item">
                <div class="coordinate-label">📍 最小坐标</div>
                <div class="coordinate-value">
                    X: ${bbox.min[0].toFixed(2)}<br>
                    Y: ${bbox.min[1].toFixed(2)}<br>
                    Z: ${bbox.min[2].toFixed(2)}
                </div>
            </div>
            <div class="data-item coordinate-item">
                <div class="coordinate-label">📍 最大坐标</div>
                <div class="coordinate-value">
                    X: ${bbox.max[0].toFixed(2)}<br>
                    Y: ${bbox.max[1].toFixed(2)}<br>
                    Z: ${bbox.max[2].toFixed(2)}
                </div>
            </div>
            <div class="data-item">
                <div class="data-label">📏 尺寸</div>
                <div class="data-value">
                    ${bbox.dimensions[0].toFixed(2)} × ${bbox.dimensions[1].toFixed(2)} × ${bbox.dimensions[2].toFixed(2)}
                    <span class="data-unit">mm</span>
                </div>
            </div>
        `;
    } else {
        boundingBoxData.innerHTML = '<div class="data-item"><div class="data-value">无边界框数据</div></div>';
    }
}

function displayTopologyData(task) {
    if (task.geometry_data && task.geometry_data.topology) {
        const topo = task.geometry_data.topology;
        topologyData.innerHTML = `
            <div class="data-item">
                <div class="data-label">🔺 面数</div>
                <div class="data-value">${topo.faces || 0}</div>
            </div>
            <div class="data-item">
                <div class="data-label">📏 边数</div>
                <div class="data-value">${topo.edges || 0}</div>
            </div>
            <div class="data-item">
                <div class="data-label">📍 顶点数</div>
                <div class="data-value">${topo.vertices || 0}</div>
            </div>
            <div class="data-item">
                <div class="data-label">📊 拓扑复杂度</div>
                <div class="data-value">${calculateTopologyComplexity(topo)}</div>
            </div>
        `;
    } else {
        topologyData.innerHTML = '<div class="data-item"><div class="data-value">无拓扑数据</div></div>';
    }
}

function displayFeaturesData(task) {
    if (task.analysis_result && task.analysis_result.detected_features) {
        const features = task.analysis_result.detected_features;

        if (features.length > 0) {
            featuresData.innerHTML = features.map(feature => `
                <div class="feature-item">
                    <div class="feature-header">
                        <div class="feature-type">${getFeatureTypeText(feature.feature_type)}</div>
                        <div class="confidence-badge">置信度: ${(feature.confidence * 100).toFixed(0)}%</div>
                    </div>
                    <div class="data-item">
                        <div class="data-label">📍 位置</div>
                        <div class="data-value">${feature.location.map(v => v.toFixed(2)).join(', ')}</div>
                    </div>
                    <div class="data-item">
                        <div class="data-label">📏 尺寸</div>
                        <div class="data-value">${feature.dimensions.map(v => v.toFixed(2)).join(' × ')} mm</div>
                    </div>
                    ${feature.recommendations && feature.recommendations.length > 0 ? `
                        <div class="data-item">
                            <div class="data-label">💡 建议</div>
                            <ul class="recommendation-list">
                                ${feature.recommendations.map(rec => `<li>${rec}</li>`).join('')}
                            </ul>
                        </div>
                    ` : ''}
                </div>
            `).join('');
        } else {
            featuresData.innerHTML = '<div class="data-item"><div class="data-value">未检测到明显特征</div></div>';
        }
    } else {
        featuresData.innerHTML = '<div class="data-item"><div class="data-value">无特征数据</div></div>';
    }
}

function displayRecommendationsData(task) {
    if (task.analysis_result && task.analysis_result.design_recommendations) {
        const recommendations = task.analysis_result.design_recommendations;

        if (recommendations.length > 0) {
            recommendationsData.innerHTML = recommendations.map(rec => `
                <div class="recommendation-item recommendation-${rec.priority}">
                    <div class="recommendation-header">
                        <div class="feature-type">${getRecommendationTypeText(rec.type)}</div>
                        <div class="priority-badge priority-${rec.priority}">${getPriorityText(rec.priority)}</div>
                    </div>
                    <div class="data-item">
                        <div class="data-label">📝 描述</div>
                        <div class="data-value">${rec.description}</div>
                    </div>
                    <div class="data-item">
                        <div class="data-label">📋 原因</div>
                        <div class="data-value">${rec.reason}</div>
                    </div>
                    ${Object.keys(rec.parameters).length > 0 ? `
                        <div class="data-item">
                            <div class="data-label">⚙️ 参数</div>
                            <div class="data-value">${formatParameters(rec.parameters)}</div>
                        </div>
                    ` : ''}
                </div>
            `).join('');
        } else {
            recommendationsData.innerHTML = '<div class="data-item"><div class="data-value">无设计建议</div></div>';
        }
    } else {
        recommendationsData.innerHTML = '<div class="data-item"><div class="data-value">无建议数据</div></div>';
    }
}

function displayMetricsData(task) {
    if (task.analysis_result && task.analysis_result.quality_metrics) {
        const metrics = task.analysis_result.quality_metrics;
        metricsData.innerHTML = `
            <div class="metric-item">
                <div class="metric-label">体积利用率</div>
                <div class="metric-value ${getMetricClass(metrics.volume_utilization, 0.3, 0.6)}">
                    ${(metrics.volume_utilization * 100).toFixed(1)}%
                </div>
                <div class="data-value">${getVolumeUtilizationText(metrics.volume_utilization)}</div>
            </div>
            <div class="metric-item">
                <div class="metric-label">拓扑复杂度</div>
                <div class="metric-value ${getMetricClass(metrics.topology_complexity, 0.3, 0.7, true)}">
                    ${metrics.topology_complexity.toFixed(2)}
                </div>
                <div class="data-value">${getComplexityText(metrics.topology_complexity)}</div>
            </div>
            <div class="metric-item">
                <div class="metric-label">壁厚均匀性</div>
                <div class="metric-value ${getMetricClass(metrics.wall_uniformity, 0.6, 0.8)}">
                    ${(metrics.wall_uniformity * 100).toFixed(1)}%
                </div>
                <div class="data-value">${getUniformityText(metrics.wall_uniformity)}</div>
            </div>
        `;
    } else {
        metricsData.innerHTML = '<div class="data-item"><div class="data-value">无质量指标数据</div></div>';
    }
}

function displayAnalysisInfo(task) {
    let infoHTML = '';

    if (task.geometry_data) {
        const geo = task.geometry_data;
        infoHTML += `
            <div class="data-item">
                <div class="data-label">🔧 分析方法</div>
                <div class="data-value">${geo.analysis_method || '未知'}</div>
            </div>
        `;
    }

    if (task.analysis_result) {
        const analysis = task.analysis_result;
        infoHTML += `
            <div class="data-item">
                <div class="data-label">✅ 分析状态</div>
                <div class="data-value">${task.status === 'completed' ? '分析完成' : '分析中'}</div>
            </div>
            <div class="data-item">
                <div class="data-label">📋 分析摘要</div>
                <div class="data-value">${analysis.analysis_summary || '无摘要'}</div>
            </div>
        `;
    }

    infoHTML += `
        <div class="data-item">
            <div class="data-label">📅 处理时间</div>
            <div class="data-value">${task.completed_at ? new Date(task.completed_at).toLocaleString() : new Date().toLocaleString()}</div>
        </div>
    `;

    analysisInfo.innerHTML = infoHTML;
}

// 工具函数
function getStatusText(status) {
    const statusMap = {
        'processing': '处理中',
        'completed': '已完成',
        'failed': '失败'
    };
    return statusMap[status] || status;
}

function formatFileSize(bytes) {
    if (!bytes || bytes === 0) return '0 Bytes';
    const k = 1024;
    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}

function formatNumber(num) {
    if (!num) return 'N/A';
    if (num >= 1000000) {
        return (num / 1000000).toFixed(2) + 'M';
    } else if (num >= 1000) {
        return (num / 1000).toFixed(2) + 'K';
    } else {
        return num.toFixed(2);
    }
}

function calculateTopologyComplexity(topo) {
    const totalElements = (topo.faces || 0) + (topo.edges || 0) + (topo.vertices || 0);
    if (totalElements < 100) return '简单';
    if (totalElements < 1000) return '中等';
    return '复杂';
}

function getFeatureTypeText(type) {
    const typeMap = {
        'thin_wall': '薄壁区域',
        'thick_wall': '厚壁区域',
        'rib_structure': '加强筋结构',
        'boss_feature': 'BOSS柱',
        'draft_angle': '拔模角度',
        'cooling_system': '冷却系统'
    };
    return typeMap[type] || type;
}

function getRecommendationTypeText(type) {
    const typeMap = {
        'wall_thickness': '壁厚优化',
        'draft_angle': '拔模角度',
        'rib_design': '加强筋设计',
        'boss_design': 'BOSS柱设计',
        'cooling_system': '冷却系统'
    };
    return typeMap[type] || type;
}

function getPriorityText(priority) {
    const priorityMap = {
        'high': '高优先级',
        'medium': '中优先级',
        'low': '低优先级'
    };
    return priorityMap[priority] || priority;
}

function formatParameters(parameters) {
    const parameterMap = {
        'min_angle': '最小角度',
        'preferred_angle': '推荐角度'
    };
    
    return Object.entries(parameters).map(([key, value]) => {
        const displayKey = parameterMap[key] || key;
        if (typeof value === 'number') {
            return `${displayKey}: ${value.toFixed(2)}`;
        }
        return `${displayKey}: ${value}`;
    }).join('; ');
}

function getMetricClass(value, goodThreshold, excellentThreshold, reverse = false) {
    if (reverse) {
        if (value <= goodThreshold) return 'metric-good';
        if (value <= excellentThreshold) return 'metric-warning';
        return 'metric-poor';
    } else {
        if (value >= excellentThreshold) return 'metric-good';
        if (value >= goodThreshold) return 'metric-warning';
        return 'metric-poor';
    }
}

function getVolumeUtilizationText(value) {
    if (value >= 0.6) return '优秀';
    if (value >= 0.3) return '良好';
    return '待优化';
}

function getComplexityText(value) {
    if (value <= 0.3) return '简单';
    if (value <= 0.7) return '中等';
    return '复杂';
}

function getUniformityText(value) {
    if (value >= 0.8) return '均匀';
    if (value >= 0.6) return '一般';
    return '不均匀';
}

function showError(message) {
    errorMessage.textContent = message;
    errorMessage.style.display = 'block';
}

function hideError() {
    errorMessage.style.display = 'none';
}

// 跳转到历史页面
function goToHistory() {
    // 创建表单进行POST请求跳转，更安全
    const form = document.createElement('form');
    form.method = 'POST';
    form.action = '/history';
    document.body.appendChild(form);
    form.submit();
}

// 添加显示函数
function displayCavityData(cavityData) {
    const cavityDiv = document.getElementById('cavityData');
    cavityDiv.innerHTML = `
        <pre>${JSON.stringify(cavityData, null, 2)}</pre>
    `;
}

function displayKeyInfo(keyInfo) {
    const keyInfoDiv = document.getElementById('keyInfoData');

    if (!keyInfo) {
        keyInfoDiv.innerHTML = '<div class="data-item"><div class="data-value">无关键信息数据</div></div>';
        return;
    }

    // 从正确的数据结构中提取数据
    const metadata = keyInfo.metadata || {};
    const manufacturingInfo = keyInfo.manufacturing_info || {};
    const moldCavities = keyInfo.mold_cavities || {};
    const cavityKeyInfo = moldCavities.cavity_key_info || {};
    const geoChars = cavityKeyInfo.geometric_characteristics || {};

    keyInfoDiv.innerHTML = `
        <div class="data-item">
            <div class="data-label">🔧 模具参数</div>
        </div>
        <div class="data-item">
            <div class="data-label">收缩率</div>
            <div class="data-value">${metadata.shrinkage_rate !== undefined ? metadata.shrinkage_rate : 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">拔模角</div>
            <div class="data-value">${metadata.draft_angle !== undefined ? metadata.draft_angle + '°' : 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">分型线长度</div>
            <div class="data-value">${manufacturingInfo.parting_line_length || 'N/A'}</div>
        </div>

        <div class="data-item" style="margin-top: 15px;">
            <div class="data-label">📐 几何特性</div>
        </div>
        <div class="data-item">
            <div class="data-label">产品体积</div>
            <div class="data-value">${geoChars.product_volume || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">产品重量</div>
            <div class="data-value">${geoChars.product_weight || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">壁厚范围</div>
            <div class="data-value">${geoChars.wall_thickness_range || 'N/A'}</div>
        </div>

        <div class="data-item" style="margin-top: 15px;">
            <div class="data-label">⚙️ 制造要求</div>
        </div>
        <div class="data-item">
            <div class="data-label">型腔材料</div>
            <div class="data-value">${manufacturingInfo.mold_material || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">硬度</div>
            <div class="data-value">${manufacturingInfo.mold_hardness || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">表面光洁度</div>
            <div class="data-value">${manufacturingInfo.surface_finish || 'N/A'}</div>
        </div>
        <div class="data-item">
            <div class="data-label">预估周期</div>
            <div class="data-value">${manufacturingInfo.estimated_cycle_time || 'N/A'}</div>
        </div>
    `;
}