# utils/html_generator.py
from pathlib import Path
from typing import Dict, Any, Optional
import json
from datetime import datetime
from utils.logger import get_logger

logger = get_logger(__name__)

class HTMLGenerator:
    """HTML文件生成器"""
    
    def __init__(self, output_dir: str = "./html_output"):
        self.output_dir = Path(output_dir)
        self.output_dir.mkdir(exist_ok=True)
    
    def generate_3d_viewer_html(
            self,
            geometry_data: Dict[str, Any],
            stp_filename: str,
            cavity_data: Optional[Dict[str, Any]] = None,
            key_info: Optional[Dict[str, Any]] = None
    ) -> str:
        """生成3D可视化HTML页面"""
        
        # 提取几何数据
        bounding_box = geometry_data.get("bounding_box", {})
        volume = geometry_data.get("volume", 0) or 0
        surface_area = geometry_data.get("surface_area", 0) or 0
        topology = geometry_data.get("topology", {})
        center_of_mass = geometry_data.get("center_of_mass", [0, 0, 0])
        cavity_html = ""
        # 强制测试：无论cavity_data如何，都显示面板
        if True:
            # 安全获取嵌套数据
            metadata = cavity_data.get("metadata", {}) if cavity_data else {}
            manufacturing_info = cavity_data.get("manufacturing_info", {}) if cavity_data else {}
            mold_cavities = cavity_data.get("mold_cavities", {}) if cavity_data else {}
            cavity_key_info = mold_cavities.get("cavity_key_info", {})
            geo_chars = cavity_key_info.get("geometric_characteristics", {})

            logger.info(f"生成HTML - 收缩率: {metadata.get('shrinkage_rate')}")
            logger.info(f"生成HTML - 型腔材料: {manufacturing_info.get('mold_material')}")
            logger.info(f"生成HTML - 产品体积: {geo_chars.get('product_volume')}")

            cavity_html = f"""
                <div id="cavity-info-panel" style="position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,0.95); padding: 15px; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.1); max-width: 320px;">
                    <h3 style="margin: 0 0 10px 0;">🔧 关键工艺参数</h3>
                    <div style="margin: 10px 0; border-bottom: 1px solid #ddd; padding-bottom: 5px;">
                        <strong style="color: #333;">模具参数</strong>
                    </div>
                    <div class="metric">
                        <span class="metric-label">收缩率:</span>
                        <span class="metric-value">{metadata.get("shrinkage_rate", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">拔模角:</span>
                        <span class="metric-value">{metadata.get("draft_angle", "N/A")}°</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">分型线长度:</span>
                        <span class="metric-value">{manufacturing_info.get("parting_line_length", "N/A")}</span>
                    </div>
                    <div style="margin: 10px 0; border-bottom: 1px solid #ddd; padding-bottom: 5px;">
                        <strong style="color: #333;">几何特性</strong>
                    </div>
                    <div class="metric">
                        <span class="metric-label">产品体积:</span>
                        <span class="metric-value">{geo_chars.get("product_volume", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">产品重量:</span>
                        <span class="metric-value">{geo_chars.get("product_weight", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">壁厚范围:</span>
                        <span class="metric-value">{geo_chars.get("wall_thickness_range", "N/A")}</span>
                    </div>
                    <div style="margin: 10px 0; border-bottom: 1px solid #ddd; padding-bottom: 5px;">
                        <strong style="color: #333;">制造要求</strong>
                    </div>
                    <div class="metric">
                        <span class="metric-label">型腔材料:</span>
                        <span class="metric-value">{manufacturing_info.get("mold_material", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">硬度:</span>
                        <span class="metric-value">{manufacturing_info.get("mold_hardness", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">表面光洁度:</span>
                        <span class="metric-value">{manufacturing_info.get("surface_finish", "N/A")}</span>
                    </div>
                    <div class="metric">
                        <span class="metric-label">预估周期:</span>
                        <span class="metric-value">{manufacturing_info.get("estimated_cycle_time", "N/A")}</span>
                    </div>
                </div>
                """
        else:
            logger.warning(f"cavity_data 为空，无法显示工艺参数 - 文件: {stp_filename}")
            cavity_html = ""
        html_content = f"""
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>3D模具几何可视化 - {stp_filename}</title>
    <script src="https://cdn.jsdelivr.net/npm/three@0.132.2/build/three.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/three@0.132.2/examples/js/controls/OrbitControls.js"></script>
    <style>
        body {{ margin: 0; overflow: hidden; font-family: Arial, sans-serif; }}
        #container {{ position: relative; width: 100vw; height: 100vh; }}
        #canvas {{ display: block; }}
        #info-panel {{
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(255, 255, 255, 0.9);
            padding: 15px;
            border-radius: 8px;
            max-width: 300px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }}
        #controls {{
            position: absolute;
            bottom: 10px;
            left: 10px;
            background: rgba(255, 255, 255, 0.9);
            padding: 10px;
            border-radius: 8px;
        }}
        .metric {{ margin: 5px 0; }}
        .metric-label {{ font-weight: bold; color: #333; }}
        .metric-value {{ color: #666; }}
    </style>
</head>
<body>
    <div id="container">
        <canvas id="canvas"></canvas>
        {cavity_html}
        <div id="info-panel">
            <h3>模具几何信息</h3>
            <div class="metric">
                <span class="metric-label">文件名:</span>
                <span class="metric-value">{stp_filename}</span>
            </div>
            <div class="metric">
                <span class="metric-label">体积:</span>
                <span class="metric-value">{volume:.2f} mm³</span>
            </div>
            <div class="metric">
                <span class="metric-label">表面积:</span>
                <span class="metric-value">{surface_area:.2f} mm²</span>
            </div>
            <div class="metric">
                <span class="metric-label">边界框:</span>
                <span class="metric-value">{bounding_box.get('dimensions', [0, 0, 0])[0]:.1f} × {bounding_box.get('dimensions', [0, 0, 0])[1]:.1f} × {bounding_box.get('dimensions', [0, 0, 0])[2]:.1f} mm</span>
            </div>
            <div class="metric">
                <span class="metric-label">面数:</span>
                <span class="metric-value">{topology.get('faces', 0)}</span>
            </div>
            <div class="metric">
                <span class="metric-label">边数:</span>
                <span class="metric-value">{topology.get('edges', 0)}</span>
            </div>
            <div class="metric">
                <span class="metric-label">顶点数:</span>
                <span class="metric-value">{topology.get('vertices', 0)}</span>
            </div>
        </div>
        
        <div id="controls">
            <button onclick="resetView()">重置视图</button>
            <button onclick="toggleWireframe()">切换线框</button>
        </div>
    </div>

    <script>
        // 初始化Three.js场景
        const scene = new THREE.Scene();
        const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
        const renderer = new THREE.WebGLRenderer({{ canvas: document.getElementById('canvas') }});
        
        renderer.setSize(window.innerWidth, window.innerHeight);
        renderer.setClearColor(0xf0f0f0);
        
        // 添加光源
        const ambientLight = new THREE.AmbientLight(0x404040);
        scene.add(ambientLight);
        
        const directionalLight = new THREE.DirectionalLight(0xffffff, 1);
        directionalLight.position.set(1, 1, 1);
        scene.add(directionalLight);
        
        // 添加坐标轴
        const axesHelper = new THREE.AxesHelper(50);
        scene.add(axesHelper);
        
        // 创建几何体（模拟模具形状）
        const geometryData = {json.dumps(geometry_data, indent=2)};
        
        // 根据边界框创建模拟几何体
        const bbox = geometryData.bounding_box;
        if (bbox) {{
            const width = bbox.dimensions ? bbox.dimensions[0] : 100;
            const height = bbox.dimensions ? bbox.dimensions[1] : 100;
            const depth = bbox.dimensions ? bbox.dimensions[2] : 100;
            
            // 创建基础几何体
            const geometry = new THREE.BoxGeometry(width, height, depth);
            const material = new THREE.MeshPhongMaterial({{
                color: 0x4CAF50,
                transparent: true,
                opacity: 0.8,
                wireframe: false
            }});
            
            const mesh = new THREE.Mesh(geometry, material);
            scene.add(mesh);
            
            // 添加线框
            const wireframe = new THREE.WireframeGeometry(geometry);
            const line = new THREE.LineSegments(wireframe);
            line.material.depthTest = false;
            line.material.opacity = 0.25;
            line.material.transparent = true;
            scene.add(line);
        }}
        
        // 设置相机位置
        camera.position.set(200, 200, 200);
        camera.lookAt(0, 0, 0);
        
        // 添加轨道控制器
        const controls = new THREE.OrbitControls(camera, renderer.domElement);
        controls.enableDamping = true;
        controls.dampingFactor = 0.25;
        
        // 动画循环
        function animate() {{
            requestAnimationFrame(animate);
            controls.update();
            renderer.render(scene, camera);
        }}
        
        animate();
        
        // 窗口大小调整
        window.addEventListener('resize', () => {{
            camera.aspect = window.innerWidth / window.innerHeight;
            camera.updateProjectionMatrix();
            renderer.setSize(window.innerWidth, window.innerHeight);
        }});
        
        // 控制函数
        function resetView() {{
            controls.reset();
        }}
        
        function toggleWireframe() {{
            scene.traverse((child) => {{
                if (child.isMesh) {{
                    child.material.wireframe = !child.material.wireframe;
                }}
            }});
        }}
    </script>
</body>
</html>
"""
        
        return html_content
    
    def save_html_file(self, html_content: str, filename: str) -> str:
        """保存HTML文件到磁盘"""
        try:
            file_path = self.output_dir / filename
            
            with open(file_path, 'w', encoding='utf-8') as f:
                f.write(html_content)
            
            logger.info(f"HTML文件保存成功: {file_path}")
            return str(file_path)
            
        except Exception as e:
            logger.error(f"保存HTML文件失败: {e}")
            raise
    
    def generate_and_save_visualization(
        self,
        geometry_data: Dict[str, Any],
        stp_filename: str,
        cavity_data: Optional[Dict[str, Any]] = None
    ) -> str:
        """生成并保存可视化HTML文件"""
        try:
            # 生成HTML内容
            html_content = self.generate_3d_viewer_html(
                geometry_data,
                stp_filename,
                cavity_data=cavity_data
            )

            # 创建文件名
            timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
            safe_filename = stp_filename.replace('.', '_').replace(' ', '_')
            html_filename = f"{safe_filename}_{timestamp}.html"

            # 保存文件
            file_path = self.save_html_file(html_content, html_filename)

            return file_path

        except Exception as e:
            logger.error(f"生成可视化文件失败: {e}")
            raise