"""
ParamHub - 参数百科
AI大模型与硬件参数速查平台
v1.1.0 - 新增智能添加和展示开关功能
"""

from flask import Flask, render_template, jsonify, request
from flask_cors import CORS
import json
import requests
from pathlib import Path
from datetime import datetime
import uuid

app = Flask(__name__, static_folder='static', static_url_path='/static')
CORS(app)

# 数据目录
DATA_DIR = Path(__file__).parent / 'data'
DATA_DIR.mkdir(exist_ok=True)

# 数据文件
MODELS_FILE = DATA_DIR / 'models.json'
GPUS_FILE = DATA_DIR / 'gpus.json'
CPUS_FILE = DATA_DIR / 'cpus.json'
CATEGORIES_FILE = DATA_DIR / 'categories.json'
KNOWLEDGE_FILE = DATA_DIR / 'knowledge.json'

# 大模型配置
LLM_CONFIG = {
    'base_url': 'http://192.168.2.17:19007/v1',
    'api_key': 'xxxx',
    'model': 'auto',
}

def load_data(file_path):
    """加载JSON数据"""
    if file_path.exists():
        return json.loads(file_path.read_text(encoding='utf-8'))
    return []

def save_data(file_path, data):
    """保存JSON数据"""
    file_path.write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding='utf-8')

# ============ 大模型智能解析 ============

def parse_with_llm(text, category_type):
    """
    使用大模型解析文本，提取结构化数据
    """
    
    # 根据类型定义字段模板
    field_templates = {
        'model': {
            'name': '模型名称',
            'organization': '厂商/组织',
            'parameters': '参数量(数字，单位B)',
            'context_length': '上下文长度(数字)',
            'architecture': '架构类型',
            'is_open_source': '是否开源(true/false)',
            'mmlu': 'MMLU分数(数字)',
            'input_price': '输入价格(数字)',
            'output_price': '输出价格(数字)',
            'license': '许可证',
            'description': '简介描述',
        },
        'gpu': {
            'name': 'GPU名称',
            'manufacturer': '厂商',
            'architecture': '架构',
            'memory_gb': '显存大小(数字，单位GB)',
            'cuda_cores': 'CUDA核心数(数字)',
            'tensor_cores': 'Tensor核心数(数字)',
            'memory_bandwidth_gbs': '显存带宽(数字，单位GB/s)',
            'fp16_tflops': 'FP16性能(数字，单位TF)',
            'price_usd': '价格(数字)',
            'release_year': '发布年份(数字)',
            'description': '简介描述',
        },
        'cpu': {
            'name': 'CPU名称',
            'manufacturer': '厂商',
            'architecture': '架构',
            'cores': '核心数(数字)',
            'threads': '线程数(数字)',
            'base_clock_ghz': '基础频率(数字，单位GHz)',
            'boost_clock_ghz': '加速频率(数字，单位GHz)',
            'l3_cache_mb': 'L3缓存(数字，单位MB)',
            'tdp_watts': 'TDP功耗(数字，单位W)',
            'price_usd': '价格(数字)',
            'description': '简介描述',
        },
        'dynamic': {
            'name': '名称',
            'brand': '品牌',
            'price': '价格(数字)',
            'year': '年份(数字)',
            'specs': '规格参数',
            'description': '简介描述',
        },
    }
    
    fields = field_templates.get(category_type, field_templates['dynamic'])
    
    prompt = f"""请解析以下文本，提取结构化数据。

文本内容：
{text}

需要提取的字段：
{json.dumps(fields, ensure_ascii=False, indent=2)}

要求：
1. 根据文本内容智能提取各个字段的值
2. 数字字段只返回数字，不带单位
3. 如果某字段在文本中没有提及，返回null
4. 返回JSON格式，不要包含任何其他内容

请直接返回JSON数据："""

    try:
        response = requests.post(
            f"{LLM_CONFIG['base_url']}/chat/completions",
            headers={
                "Content-Type": "application/json",
                "Authorization": f"Bearer {LLM_CONFIG['api_key']}"
            },
            json={
                "model": LLM_CONFIG['model'],
                "messages": [
                    {"role": "system", "content": "你是一个数据提取助手，负责从文本中提取结构化数据。只返回JSON，不要其他内容。"},
                    {"role": "user", "content": prompt}
                ],
                "max_tokens": 1000,
                "temperature": 0.1
            },
            timeout=30
        )
        
        if response.status_code == 200:
            data = response.json()
            content = data['choices'][0]['message']['content'].strip()
            
            # 清理可能的markdown包裹
            if content.startswith('```'):
                content = content.split('\n', 1)[1] if '\n' in content else content[3:]
                content = content.rsplit('```', 1)[0] if '```' in content else content
            
            # 解析JSON
            parsed = json.loads(content)
            
            # 清理null值
            cleaned = {}
            for k, v in parsed.items():
                if v is not None and v != '' and v != 'null':
                    # 尝试转换数字
                    if isinstance(v, str):
                        try:
                            if '.' in v:
                                cleaned[k] = float(v)
                            else:
                                cleaned[k] = int(v)
                        except:
                            cleaned[k] = v
                    else:
                        cleaned[k] = v
            
            return cleaned
    except Exception as e:
        print(f"LLM解析失败: {e}")
    
    # 降级处理：返回基本结构
    return {'name': text[:50], 'description': text}

# ============ 页面路由 ============

@app.route('/')
def index():
    """首页"""
    return render_template('index.html')

@app.route('/models')
def models_page():
    """模型数据库页面"""
    return render_template('models.html')

@app.route('/gpus')
def gpus_page():
    """GPU数据库页面"""
    return render_template('gpus.html')

@app.route('/cpus')
def cpus_page():
    """CPU数据库页面"""
    return render_template('cpus.html')

@app.route('/tools')
def tools_page():
    """工具页面"""
    return render_template('tools.html')

@app.route('/compare')
def compare_page():
    """对比页面"""
    return render_template('compare.html')

@app.route('/knowledge')
def knowledge_page():
    """知识库页面"""
    return render_template('knowledge.html')

@app.route('/admin')
def admin_page():
    """后台管理页面"""
    return render_template('admin.html')

@app.route('/category/<category_id>')
def category_page(category_id):
    """动态分类页面"""
    categories = load_data(CATEGORIES_FILE)
    category = next((c for c in categories if c['id'] == category_id), None)
    
    if not category:
        return "分类不存在", 404
    
    return render_template('category.html', category=category)

# ============ API路由 ============

@app.route('/api/models')
def api_models():
    """获取模型列表"""
    models = load_data(MODELS_FILE)
    
    # 过滤隐藏项（前台默认不显示visible=false）
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        models = [m for m in models if m.get('visible', True)]
    
    # 搜索过滤
    keyword = request.args.get('q', '').strip().lower()
    if keyword:
        models = [m for m in models if keyword in m.get('name', '').lower() or 
                  keyword in m.get('organization', '').lower()]
    
    # 排序
    sort_by = request.args.get('sort', 'created_at')
    reverse = request.args.get('order', 'asc') == 'desc'
    
    # 安全排序：处理可能的None/缺失值
    def safe_sort_key(x, key):
        val = x.get(key)
        if val is None:
            return 0 if key in ['parameters', 'context_length', 'mmlu'] else ''
        return val
    
    if sort_by in ['name', 'parameters', 'context_length', 'mmlu', 'created_at']:
        models = sorted(models, key=lambda x: safe_sort_key(x, sort_by), reverse=reverse)
    
    return jsonify(models)

@app.route('/api/models/<model_id>')
def api_model_detail(model_id):
    """获取单个模型详情"""
    models = load_data(MODELS_FILE)
    model = next((m for m in models if m['id'] == model_id), None)
    
    if not model:
        return jsonify({'error': 'Model not found'}), 404
    
    return jsonify(model)

@app.route('/api/models', methods=['POST'])
def api_create_model():
    """创建新模型"""
    data = request.get_json()
    models = load_data(MODELS_FILE)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)  # 默认显示
    
    models.append(data)
    save_data(MODELS_FILE, models)
    
    return jsonify(data)

@app.route('/api/models/<model_id>', methods=['PUT'])
def api_update_model(model_id):
    """更新模型"""
    data = request.get_json()
    models = load_data(MODELS_FILE)
    
    model = next((m for m in models if m['id'] == model_id), None)
    if not model:
        return jsonify({'error': 'Model not found'}), 404
    
    model.update(data)
    model['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(MODELS_FILE, models)
    
    return jsonify(model)

@app.route('/api/models/<model_id>', methods=['DELETE'])
def api_delete_model(model_id):
    """删除模型"""
    models = load_data(MODELS_FILE)
    models = [m for m in models if m['id'] != model_id]
    save_data(MODELS_FILE, models)
    
    return jsonify({'success': True})

@app.route('/api/models/<model_id>/visible', methods=['POST'])
def api_toggle_model_visible(model_id):
    """切换模型显示状态"""
    models = load_data(MODELS_FILE)
    model = next((m for m in models if m['id'] == model_id), None)
    if not model:
        return jsonify({'error': 'Model not found'}), 404
    
    model['visible'] = not model.get('visible', True)
    save_data(MODELS_FILE, models)
    
    return jsonify({'success': True, 'visible': model['visible']})

# ============ 智能添加API ============

@app.route('/api/models/smart-add', methods=['POST'])
def api_smart_add_model():
    """智能添加模型（粘贴文本解析）"""
    data = request.get_json()
    text = data.get('text', '')
    
    if not text:
        return jsonify({'error': '文本不能为空'}), 400
    
    # 大模型解析
    parsed = parse_with_llm(text, 'model')
    
    # 补充必要字段
    parsed['id'] = uuid.uuid4().hex[:12]
    parsed['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    parsed['visible'] = True
    parsed['raw_text'] = text  # 保存原始文本
    
    # 保存
    models = load_data(MODELS_FILE)
    models.append(parsed)
    save_data(MODELS_FILE, models)
    
    return jsonify(parsed)

@app.route('/api/gpus/smart-add', methods=['POST'])
def api_smart_add_gpu():
    """智能添加GPU"""
    data = request.get_json()
    text = data.get('text', '')
    
    if not text:
        return jsonify({'error': '文本不能为空'}), 400
    
    parsed = parse_with_llm(text, 'gpu')
    parsed['id'] = uuid.uuid4().hex[:12]
    parsed['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    parsed['visible'] = True
    parsed['raw_text'] = text
    
    gpus = load_data(GPUS_FILE)
    gpus.append(parsed)
    save_data(GPUS_FILE, gpus)
    
    return jsonify(parsed)

@app.route('/api/cpus/smart-add', methods=['POST'])
def api_smart_add_cpu():
    """智能添加CPU"""
    data = request.get_json()
    text = data.get('text', '')
    
    if not text:
        return jsonify({'error': '文本不能为空'}), 400
    
    parsed = parse_with_llm(text, 'cpu')
    parsed['id'] = uuid.uuid4().hex[:12]
    parsed['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    parsed['visible'] = True
    parsed['raw_text'] = text
    
    cpus = load_data(CPUS_FILE)
    cpus.append(parsed)
    save_data(CPUS_FILE, cpus)
    
    return jsonify(parsed)

@app.route('/api/items/<category_id>/smart-add', methods=['POST'])
def api_smart_add_item(category_id):
    """智能添加动态分类数据"""
    data = request.get_json()
    text = data.get('text', '')
    
    if not text:
        return jsonify({'error': '文本不能为空'}), 400
    
    parsed = parse_with_llm(text, 'dynamic')
    parsed['id'] = uuid.uuid4().hex[:12]
    parsed['category_id'] = category_id
    parsed['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    parsed['visible'] = True
    parsed['raw_text'] = text
    
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    items.append(parsed)
    save_data(items_file, items)
    
    return jsonify(parsed)

# ============ GPU API ============

@app.route('/api/gpus')
def api_gpus():
    """获取GPU列表"""
    gpus = load_data(GPUS_FILE)
    
    # 过滤隐藏项
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        gpus = [g for g in gpus if g.get('visible', True)]
    
    keyword = request.args.get('q', '').strip().lower()
    if keyword:
        gpus = [g for g in gpus if keyword in g.get('name', '').lower() or 
                keyword in g.get('manufacturer', '').lower()]
    
    return jsonify(gpus)

@app.route('/api/gpus/<gpu_id>')
def api_gpu_detail(gpu_id):
    """获取单个GPU详情"""
    gpus = load_data(GPUS_FILE)
    gpu = next((g for g in gpus if g['id'] == gpu_id), None)
    
    if not gpu:
        return jsonify({'error': 'GPU not found'}), 404
    
    return jsonify(gpu)

@app.route('/api/gpus', methods=['POST'])
def api_create_gpu():
    """创建新GPU"""
    data = request.get_json()
    gpus = load_data(GPUS_FILE)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)
    
    gpus.append(data)
    save_data(GPUS_FILE, gpus)
    
    return jsonify(data)

@app.route('/api/gpus/<gpu_id>', methods=['PUT'])
def api_update_gpu(gpu_id):
    """更新GPU"""
    data = request.get_json()
    gpus = load_data(GPUS_FILE)
    
    gpu = next((g for g in gpus if g['id'] == gpu_id), None)
    if not gpu:
        return jsonify({'error': 'GPU not found'}), 404
    
    gpu.update(data)
    gpu['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(GPUS_FILE, gpus)
    
    return jsonify(gpu)

@app.route('/api/gpus/<gpu_id>', methods=['DELETE'])
def api_delete_gpu(gpu_id):
    """删除GPU"""
    gpus = load_data(GPUS_FILE)
    gpus = [g for g in gpus if g['id'] != gpu_id]
    save_data(GPUS_FILE, gpus)
    
    return jsonify({'success': True})

@app.route('/api/gpus/<gpu_id>/visible', methods=['POST'])
def api_toggle_gpu_visible(gpu_id):
    """切换GPU显示状态"""
    gpus = load_data(GPUS_FILE)
    gpu = next((g for g in gpus if g['id'] == gpu_id), None)
    if not gpu:
        return jsonify({'error': 'GPU not found'}), 404
    
    gpu['visible'] = not gpu.get('visible', True)
    save_data(GPUS_FILE, gpus)
    
    return jsonify({'success': True, 'visible': gpu['visible']})

# ============ CPU API ============

@app.route('/api/cpus')
def api_cpus():
    """获取CPU列表"""
    cpus = load_data(CPUS_FILE)
    
    # 过滤隐藏项
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        cpus = [c for c in cpus if c.get('visible', True)]
    
    keyword = request.args.get('q', '').strip().lower()
    if keyword:
        cpus = [c for c in cpus if keyword in c.get('name', '').lower() or 
                keyword in c.get('manufacturer', '').lower()]
    
    return jsonify(cpus)

@app.route('/api/cpus/<cpu_id>')
def api_cpu_detail(cpu_id):
    """获取单个CPU详情"""
    cpus = load_data(CPUS_FILE)
    cpu = next((c for c in cpus if c['id'] == cpu_id), None)
    
    if not cpu:
        return jsonify({'error': 'CPU not found'}), 404
    
    return jsonify(cpu)

@app.route('/api/cpus', methods=['POST'])
def api_create_cpu():
    """创建新CPU"""
    data = request.get_json()
    cpus = load_data(CPUS_FILE)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)
    
    cpus.append(data)
    save_data(CPUS_FILE, cpus)
    
    return jsonify(data)

@app.route('/api/cpus/<cpu_id>', methods=['PUT'])
def api_update_cpu(cpu_id):
    """更新CPU"""
    data = request.get_json()
    cpus = load_data(CPUS_FILE)
    
    cpu = next((c for c in cpus if c['id'] == cpu_id), None)
    if not cpu:
        return jsonify({'error': 'CPU not found'}), 404
    
    cpu.update(data)
    cpu['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(CPUS_FILE, cpus)
    
    return jsonify(cpu)

@app.route('/api/cpus/<cpu_id>', methods=['DELETE'])
def api_delete_cpu(cpu_id):
    """删除CPU"""
    cpus = load_data(CPUS_FILE)
    cpus = [c for c in cpus if c['id'] != cpu_id]
    save_data(CPUS_FILE, cpus)
    
    return jsonify({'success': True})

@app.route('/api/cpus/<cpu_id>/visible', methods=['POST'])
def api_toggle_cpu_visible(cpu_id):
    """切换CPU显示状态"""
    cpus = load_data(CPUS_FILE)
    cpu = next((c for c in cpus if c['id'] == cpu_id), None)
    if not cpu:
        return jsonify({'error': 'CPU not found'}), 404
    
    cpu['visible'] = not cpu.get('visible', True)
    save_data(CPUS_FILE, cpus)
    
    return jsonify({'success': True, 'visible': cpu['visible']})

# ============ 搜索和其他API ============

@app.route('/api/search')
def api_search():
    """全局搜索"""
    keyword = request.args.get('q', '').strip().lower()
    
    if not keyword:
        return jsonify({'models': [], 'gpus': [], 'cpus': []})
    
    models = load_data(MODELS_FILE)
    gpus = load_data(GPUS_FILE)
    cpus = load_data(CPUS_FILE)
    
    result = {
        'models': [m for m in models if m.get('visible', True) and (keyword in m.get('name', '').lower() or keyword in m.get('organization', '').lower())],
        'gpus': [g for g in gpus if g.get('visible', True) and (keyword in g.get('name', '').lower() or keyword in g.get('manufacturer', '').lower())],
        'cpus': [c for c in cpus if c.get('visible', True) and (keyword in c.get('name', '').lower() or keyword in c.get('manufacturer', '').lower())]
    }
    
    return jsonify(result)

@app.route('/api/calculate/vram')
def api_calculate_vram():
    """显存计算"""
    params = request.args.get('params', '7', type=float)
    precision = request.args.get('precision', 'fp16', type=str)
    
    bytes_per_param = {'fp32': 4, 'fp16': 2, 'int8': 1, 'int4': 0.5}
    multiplier = bytes_per_param.get(precision, 2)
    vram_gb = params * multiplier * 1e9 / (1024**3)
    total_vram = vram_gb * 1.3
    
    gpus = load_data(GPUS_FILE)
    suitable_gpus = [g for g in gpus if g.get('visible', True) and g.get('memory_gb', 0) >= total_vram]
    
    return jsonify({
        'model_vram': round(vram_gb, 2),
        'total_vram': round(total_vram, 2),
        'suitable_gpus': suitable_gpus
    })

@app.route('/api/stats')
def api_stats():
    """统计数据"""
    models = load_data(MODELS_FILE)
    gpus = load_data(GPUS_FILE)
    cpus = load_data(CPUS_FILE)
    categories = load_data(CATEGORIES_FILE)
    knowledge = load_data(KNOWLEDGE_FILE)
    
    return jsonify({
        'models_count': len([m for m in models if m.get('visible', True)]),
        'gpus_count': len([g for g in gpus if g.get('visible', True)]),
        'cpus_count': len([c for c in cpus if c.get('visible', True)]),
        'categories_count': len([c for c in categories if c.get('visible', True)]),
        'knowledge_count': len(knowledge),
        'latest_models': sorted([m for m in models if m.get('visible', True)], key=lambda x: x.get('created_at', ''), reverse=True)[:5]
    })

# ============ 分类管理API ============

@app.route('/api/categories')
def api_categories():
    """获取分类列表"""
    categories = load_data(CATEGORIES_FILE)
    
    # 过滤隐藏项
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        categories = [c for c in categories if c.get('visible', True)]
    
    return jsonify(sorted(categories, key=lambda x: x.get('order', 0)))

@app.route('/api/categories', methods=['POST'])
def api_create_category():
    """创建新分类"""
    data = request.get_json()
    categories = load_data(CATEGORIES_FILE)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)
    
    categories.append(data)
    save_data(CATEGORIES_FILE, categories)
    
    return jsonify(data)

@app.route('/api/categories/<category_id>', methods=['PUT'])
def api_update_category(category_id):
    """更新分类"""
    data = request.get_json()
    categories = load_data(CATEGORIES_FILE)
    
    category = next((c for c in categories if c['id'] == category_id), None)
    if not category:
        return jsonify({'error': 'Category not found'}), 404
    
    category.update(data)
    category['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(CATEGORIES_FILE, categories)
    
    return jsonify(category)

@app.route('/api/categories/<category_id>', methods=['DELETE'])
def api_delete_category(category_id):
    """删除分类"""
    categories = load_data(CATEGORIES_FILE)
    categories = [c for c in categories if c['id'] != category_id]
    save_data(CATEGORIES_FILE, categories)
    
    return jsonify({'success': True})

@app.route('/api/categories/<category_id>/visible', methods=['POST'])
def api_toggle_category_visible(category_id):
    """切换分类显示状态"""
    categories = load_data(CATEGORIES_FILE)
    category = next((c for c in categories if c['id'] == category_id), None)
    if not category:
        return jsonify({'error': 'Category not found'}), 404
    
    category['visible'] = not category.get('visible', True)
    save_data(CATEGORIES_FILE, categories)
    
    return jsonify({'success': True, 'visible': category['visible']})

# ============ 知识库管理API ============

@app.route('/api/knowledge')
def api_knowledge():
    """获取知识列表"""
    knowledge = load_data(KNOWLEDGE_FILE)
    
    keyword = request.args.get('q', '').strip().lower()
    if keyword:
        knowledge = [k for k in knowledge if keyword in k.get('title', '').lower() or keyword in k.get('content', '').lower()]
    
    category = request.args.get('category', '')
    if category:
        knowledge = [k for k in knowledge if k.get('category') == category]
    
    return jsonify(sorted(knowledge, key=lambda x: x.get('order', 0)))

@app.route('/api/knowledge/<knowledge_id>')
def api_knowledge_detail(knowledge_id):
    """获取单个知识详情"""
    knowledge = load_data(KNOWLEDGE_FILE)
    item = next((k for k in knowledge if k['id'] == knowledge_id), None)
    
    if not item:
        return jsonify({'error': 'Knowledge not found'}), 404
    
    return jsonify(item)

@app.route('/api/knowledge', methods=['POST'])
def api_create_knowledge():
    """创建新知识"""
    data = request.get_json()
    knowledge = load_data(KNOWLEDGE_FILE)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    if 'order' not in data:
        data['order'] = len(knowledge)
    
    knowledge.append(data)
    save_data(KNOWLEDGE_FILE, knowledge)
    
    return jsonify(data)

@app.route('/api/knowledge/<knowledge_id>', methods=['PUT'])
def api_update_knowledge(knowledge_id):
    """更新知识"""
    data = request.get_json()
    knowledge = load_data(KNOWLEDGE_FILE)
    
    item = next((k for k in knowledge if k['id'] == knowledge_id), None)
    if not item:
        return jsonify({'error': 'Knowledge not found'}), 404
    
    item.update(data)
    item['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(KNOWLEDGE_FILE, knowledge)
    
    return jsonify(item)

@app.route('/api/knowledge/<knowledge_id>', methods=['DELETE'])
def api_delete_knowledge(knowledge_id):
    """删除知识"""
    knowledge = load_data(KNOWLEDGE_FILE)
    knowledge = [k for k in knowledge if k['id'] != knowledge_id]
    save_data(KNOWLEDGE_FILE, knowledge)
    
    return jsonify({'success': True})

# ============ 动态分类数据API ============

@app.route('/api/items/<category_id>')
def api_items(category_id):
    """获取分类下的数据列表"""
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    
    # 过滤隐藏项
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        items = [i for i in items if i.get('visible', True)]
    
    return jsonify(items)

@app.route('/api/items/<category_id>/<item_id>')
def api_item_detail(category_id, item_id):
    """获取单个数据详情"""
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    item = next((i for i in items if i['id'] == item_id), None)
    
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    
    return jsonify(item)

@app.route('/api/items/<category_id>', methods=['POST'])
def api_create_item(category_id):
    """创建新数据"""
    data = request.get_json()
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    
    data['id'] = uuid.uuid4().hex[:12]
    data['category_id'] = category_id
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)
    
    items.append(data)
    save_data(items_file, items)
    
    return jsonify(data)

@app.route('/api/items/<category_id>/<item_id>', methods=['PUT'])
def api_update_item(category_id, item_id):
    """更新数据"""
    data = request.get_json()
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    
    item = next((i for i in items if i['id'] == item_id), None)
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    
    item.update(data)
    item['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(items_file, items)
    
    return jsonify(item)

@app.route('/api/items/<category_id>/<item_id>', methods=['DELETE'])
def api_delete_item(category_id, item_id):
    """删除数据"""
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    items = [i for i in items if i['id'] != item_id]
    save_data(items_file, items)
    
    return jsonify({'success': True})

@app.route('/api/items/<category_id>/<item_id>/visible', methods=['POST'])
def api_toggle_item_visible(category_id, item_id):
    """切换动态数据显示状态"""
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    item = next((i for i in items if i['id'] == item_id), None)
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    
    item['visible'] = not item.get('visible', True)
    save_data(items_file, items)
    
    return jsonify({'success': True, 'visible': item['visible']})

if __name__ == '__main__':
    print("=" * 50)
    print("ParamHub - 参数百科 v1.1.0")
    print("=" * 50)
    print(f"访问地址: http://localhost:19010")
    print(f"后台管理: http://localhost:19010/admin")
    print("=" * 50)
    
    app.run(host='0.0.0.0', port=19010, debug=True)