import os
import markdown
from flask import Flask, render_template, redirect, url_for, request, flash, jsonify
from flask_login import LoginManager, login_user, logout_user, login_required, current_user
from flask_admin import Admin, AdminIndexView, expose
from flask_admin.contrib.sqla import ModelView
from datetime import datetime
from config import config
from models import db, Site, Tag, Admin as AdminModel, News, site_tags, PromptTemplate
from utils.website_fetcher import WebsiteFetcher
from utils.tag_generator import TagGenerator
from utils.news_searcher import NewsSearcher

def create_app(config_name='default'):
    """应用工厂函数"""
    app = Flask(__name__)

    # 加载配置
    app.config.from_object(config[config_name])

    # 初始化数据库
    db.init_app(app)

    # 添加Markdown过滤器
    @app.template_filter('markdown')
    def markdown_filter(text):
        """将Markdown文本转换为HTML"""
        if not text:
            return ''
        return markdown.markdown(text, extensions=['nl2br', 'fenced_code'])

    # v2.4新增: 自动内链过滤器
    @app.template_filter('auto_link')
    def auto_link_filter(text, current_site_id=None):
        """自动为内容中的工具名称添加链接"""
        if not text:
            return ''

        # 获取所有启用的网站(排除当前网站)
        sites = Site.query.filter_by(is_active=True).all()
        if current_site_id:
            sites = [s for s in sites if s.id != current_site_id]

        # 按名称长度降序排序，优先匹配长名称
        sites = sorted(sites, key=lambda s: len(s.name), reverse=True)

        # 记录已经添加链接的位置，避免重复
        linked_sites = set()

        for site in sites:
            if site.name in text and site.name not in linked_sites:
                # 只链接第一次出现的位置
                link = f'<a href="/site/{site.code}" title="{site.short_desc or site.name}" style="color: var(--primary-blue); text-decoration: underline; text-decoration-style: dotted;">{site.name}</a>'
                text = text.replace(site.name, link, 1)
                linked_sites.add(site.name)

        return text

    # 初始化登录管理
    login_manager = LoginManager()
    login_manager.init_app(app)
    login_manager.login_view = 'admin_login'
    login_manager.login_message = '请先登录'

    @login_manager.user_loader
    def load_user(user_id):
        return AdminModel.query.get(int(user_id))

    # ========== 前台路由 ==========
    @app.route('/')
    def index():
        """首页"""
        # 获取所有启用的标签
        tags = Tag.query.order_by(Tag.sort_order.desc(), Tag.id).all()

        # 优化：使用一次SQL查询统计所有标签的网站数量
        tag_counts = {}
        if tags:
            # 使用JOIN查询一次性获取所有标签的网站数量
            from sqlalchemy import func
            counts_query = db.session.query(
                site_tags.c.tag_id,
                func.count(site_tags.c.site_id).label('count')
            ).join(
                Site, site_tags.c.site_id == Site.id
            ).filter(
                Site.is_active == True
            ).group_by(site_tags.c.tag_id).all()

            tag_counts = {tag_id: count for tag_id, count in counts_query}

        # 获取筛选参数
        tag_slug = request.args.get('tag')
        search_query = request.args.get('q', '').strip()
        current_tab = request.args.get('tab', 'latest')  # 默认为"最新"
        page = request.args.get('page', 1, type=int)
        per_page = 100  # 每页显示100个站点

        selected_tag = None

        # 构建基础查询
        query = Site.query.filter_by(is_active=True)

        # 标签筛选
        if tag_slug:
            selected_tag = Tag.query.filter_by(slug=tag_slug).first()
            if selected_tag:
                query = query.filter(Site.tags.contains(selected_tag))
            else:
                sites = []
                pagination = None
                return render_template('index_new.html', sites=sites, tags=tags,
                                     selected_tag=selected_tag, search_query=search_query,
                                     pagination=pagination, tag_counts=tag_counts,
                                     current_tab=current_tab)

        # 搜索功能
        if search_query:
            # 使用OR条件搜索：网站名称、URL、描述
            search_pattern = f'%{search_query}%'
            query = query.filter(
                db.or_(
                    Site.name.like(search_pattern),
                    Site.url.like(search_pattern),
                    Site.description.like(search_pattern),
                    Site.short_desc.like(search_pattern)
                )
            )

        # Tab筛选和排序
        if current_tab == 'popular':
            # 热门：按浏览次数倒序
            query = query.order_by(Site.view_count.desc(), Site.id.desc())
        elif current_tab == 'recommended':
            # 推荐：只显示is_recommended=True的
            query = query.filter_by(is_recommended=True).order_by(Site.sort_order.desc(), Site.id.desc())
        else:
            # 最新：按创建时间倒序（默认）
            query = query.order_by(Site.created_at.desc(), Site.id.desc())

        # 分页
        pagination = query.paginate(page=page, per_page=per_page, error_out=False)
        sites = pagination.items

        return render_template('index_new.html', sites=sites, tags=tags,
                             selected_tag=selected_tag, search_query=search_query,
                             pagination=pagination, tag_counts=tag_counts,
                             current_tab=current_tab)

    @app.route('/site/<code>')
    def site_detail(code):
        """网站详情页"""
        site = Site.query.filter_by(code=code, is_active=True).first_or_404()

        # 增加浏览次数
        site.view_count += 1
        db.session.commit()

        # 智能新闻更新：检查今天是否已更新过新闻
        from datetime import date
        today = date.today()

        # 检查该网站最新一条新闻的创建时间
        latest_news = News.query.filter_by(
            site_id=site.id
        ).order_by(News.created_at.desc()).first()

        # 判断是否需要更新新闻
        need_update = False
        if not latest_news:
            # 没有任何新闻，需要获取
            need_update = True
        elif latest_news.created_at.date() < today:
            # 最新新闻不是今天创建的，需要更新
            need_update = True

        # 如果需要更新，自动获取最新新闻
        if need_update:
            api_key = app.config.get('BOCHA_API_KEY')
            if api_key:
                try:
                    # 创建新闻搜索器
                    searcher = NewsSearcher(api_key)

                    # 获取新闻（限制3条，一周内的）
                    news_items = searcher.search_site_news(
                        site_name=site.name,
                        site_url=site.url,
                        news_keywords=site.news_keywords,  # v2.3新增：使用专用关键词
                        count=3,
                        freshness='oneWeek'
                    )

                    # 保存新闻到数据库
                    if news_items:
                        for item in news_items:
                            # 检查是否已存在（根据URL去重）
                            existing = News.query.filter_by(
                                site_id=site.id,
                                url=item['url']
                            ).first()

                            if not existing:
                                news = News(
                                    site_id=site.id,
                                    title=item['title'],
                                    content=item.get('summary') or item.get('snippet', ''),
                                    url=item['url'],
                                    source_name=item.get('site_name', ''),
                                    source_icon=item.get('site_icon', ''),
                                    published_at=item.get('published_at'),
                                    news_type='Search Result',
                                    is_active=True
                                )
                                db.session.add(news)

                        db.session.commit()

                except Exception as e:
                    # 获取新闻失败，不影响页面显示
                    print(f"自动获取新闻失败：{str(e)}")
                    db.session.rollback()

        # 获取该网站的相关新闻（最多显示5条）
        news_list = News.query.filter_by(
            site_id=site.id,
            is_active=True
        ).order_by(News.published_at.desc()).limit(5).all()

        # 获取同类工具推荐（通过标签匹配，最多显示4个）
        recommended_sites = []
        if site.tags:
            # 获取有相同标签的其他网站
            recommended_sites = Site.query.filter(
                Site.id != site.id,
                Site.is_active == True,
                Site.tags.any(Tag.id.in_([tag.id for tag in site.tags]))
            ).order_by(Site.view_count.desc()).limit(4).all()

        return render_template('detail_new.html', site=site, news_list=news_list, recommended_sites=recommended_sites)

    # ========== 社媒营销路由 (v2.5新增) ==========
    @app.route('/api/generate-social-share', methods=['POST'])
    def generate_social_share():
        """一键生成社媒分享文案（前台可访问）"""
        try:
            data = request.get_json() or {}
            site_code = (data.get('site_code') or '').strip()
            platforms = data.get('platforms') or []

            if not site_code:
                return jsonify({'success': False, 'message': '请提供网站编码'}), 400

            site = Site.query.filter_by(code=site_code, is_active=True).first()
            if not site:
                return jsonify({'success': False, 'message': '网站不存在或未启用'}), 404

            # 允许的平台列表（前端也会限制，这里再做一次兜底）
            allowed_platforms = {
                'universal',
                'xiaohongshu',
                'douyin',
                'bilibili',
                'wechat',
                'moments',
                'x',
                'linkedin'
            }

            if not isinstance(platforms, list):
                platforms = []
            platforms = [p for p in platforms if isinstance(p, str)]
            platforms = [p.strip().lower() for p in platforms if p.strip()]
            platforms = [p for p in platforms if p in allowed_platforms]

            # 默认生成通用模板
            if not platforms:
                platforms = ['universal']

            # 组织站点信息
            site_info = {
                'name': site.name,
                'url': site.url,
                'short_desc': site.short_desc or '',
                'description': (site.description or '')[:1200],
                'features': (site.features or '')[:1200],
                'tags': [t.name for t in (site.tags or [])]
            }

            # 尝试使用PromptTemplate + DeepSeek生成
            from utils.tag_generator import TagGenerator
            generator = TagGenerator()
            prompt = PromptTemplate.query.filter_by(key='social_share', is_active=True).first()

            generated = {}

            if prompt and generator.client:
                # 构造提示词变量
                tags_text = ','.join(site_info['tags'])
                user_prompt = prompt.user_prompt_template.format(
                    name=site_info['name'],
                    url=site_info['url'],
                    short_desc=site_info['short_desc'],
                    description=site_info['description'],
                    features=site_info['features'],
                    tags=tags_text,
                    platforms=','.join(platforms)
                )

                try:
                    resp = generator.client.chat.completions.create(
                        model='deepseek-chat',
                        messages=[
                            {'role': 'system', 'content': prompt.system_prompt},
                            {'role': 'user', 'content': user_prompt}
                        ],
                        temperature=0.7,
                        max_tokens=1200
                    )
                    text = (resp.choices[0].message.content or '').strip()
                    # 约定：模型返回JSON字符串；若不是JSON则回退到纯文本放到universal
                    import json as _json
                    try:
                        parsed = _json.loads(text)
                        if isinstance(parsed, dict):
                            for k, v in parsed.items():
                                if isinstance(k, str) and isinstance(v, str) and k in allowed_platforms:
                                    generated[k] = v.strip()
                    except Exception:
                        generated['universal'] = text
                except Exception as e:
                    # AI失败不影响整体，回退模板
                    print(f"社媒文案AI生成失败：{str(e)}")

            # 回退：规则模板（根据各平台字数限制优化）
            def build_fallback(p):
                name = site_info['name']
                url = site_info['url']
                short_desc = site_info['short_desc'] or ''
                full_desc = site_info['description'] or ''
                features = site_info['features'] or ''
                tags = site_info['tags'][:6]
                tags_line = ' ' + ' '.join([f"#{t}" for t in tags]) if tags else ''

                # X (Twitter) - 280字符限制，简洁为主
                if p == 'x':
                    desc = (short_desc or full_desc)[:100]
                    base = f"🔥 {name}\n\n{desc}\n\n🔗 {url}{tags_line}"
                    return base[:280]

                # LinkedIn - 3000字限制，专业风格
                if p == 'linkedin':
                    desc = (full_desc or short_desc)[:500]
                    content = f"💡 推荐一个实用工具：{name}\n\n📝 简介：\n{desc}\n\n"
                    if features:
                        features_list = features.split('\n')[:3]
                        content += f"✨ 主要功能：\n" + '\n'.join([f"• {f.strip()}" for f in features_list if f.strip()][:3]) + "\n\n"
                    content += f"🔗 官网：{url}\n\n"
                    if tags:
                        content += f"📌 适用场景：{', '.join(tags)}"
                    return content[:3000]

                # 小红书 - 2000字限制，图文风格
                if p == 'xiaohongshu':
                    desc = (short_desc or full_desc)[:300]
                    content = f"✨ {name} | 我最近在用的宝藏工具\n\n"
                    content += f"📌 一句话介绍：\n{desc}\n\n"
                    if features:
                        features_list = features.split('\n')[:5]
                        content += f"🎯 核心功能：\n" + '\n'.join([f"✓ {f.strip()}" for f in features_list if f.strip()][:5]) + "\n\n"
                    content += f"🔗 体验入口：{url}\n\n{tags_line}"
                    return content[:2000]

                # 抖音 - 2000字限制，短视频文案风格
                if p == 'douyin':
                    desc = (short_desc or full_desc)[:200]
                    content = f"🔥 发现一个超好用的工具：{name}\n\n"
                    content += f"💡 {desc}\n\n"
                    if features:
                        features_list = features.split('\n')[:3]
                        content += "✨ 亮点功能：\n" + '\n'.join([f"👉 {f.strip()}" for f in features_list if f.strip()][:3]) + "\n\n"
                    content += f"🔗 想试试戳：{url}\n\n{tags_line}"
                    return content[:2000]

                # B站 - 20000字限制，专栏风格
                if p == 'bilibili':
                    desc = (full_desc or short_desc)[:800]
                    content = f"【分享】{name} - 值得一试的优质工具\n\n"
                    content += f"## 📖 工具简介\n{desc}\n\n"
                    if features:
                        content += f"## ✨ 主要功能\n{features}\n\n"
                    content += f"## 🔗 体验地址\n{url}\n\n"
                    if tags:
                        content += f"## 🏷️ 相关标签\n{' / '.join(tags)}"
                    return content[:20000]

                # 微信公众号 - 基本无限制，正式风格
                if p == 'wechat':
                    desc = (full_desc or short_desc)[:600]
                    content = f"今天给大家分享一个实用工具：{name}\n\n"
                    content += f"📝 工具介绍\n{desc}\n\n"
                    if features:
                        content += f"✨ 核心功能\n{features}\n\n"
                    content += f"🔗 官方网站\n{url}\n\n"
                    if tags:
                        content += f"如果你也在关注「{' · '.join(tags)}」相关的工具，不妨收藏一下这个实用的选择。"
                    return content

                # 朋友圈 - 简短为主
                if p == 'moments':
                    desc = (short_desc or full_desc)[:80]
                    return f"💡 {name}\n{desc}\n🔗 {url}{tags_line}".strip()

                # 通用模板
                desc = (full_desc or short_desc)[:300]
                return f"{name}\n\n{desc}\n\n{url}{tags_line}".strip()

            results = {}
            for p in platforms:
                results[p] = generated.get(p) or build_fallback(p)

            # 统一补充一个通用版本
            if 'universal' not in results:
                results['universal'] = generated.get('universal') or build_fallback('universal')

            return jsonify({
                'success': True,
                'site': {
                    'code': site.code,
                    'name': site.name,
                    'url': site.url
                },
                'platforms': platforms,
                'content': results
            })

        except Exception as e:
            return jsonify({'success': False, 'message': f'生成失败: {str(e)}'}), 500

    # ========== 后台登录路由 ==========
    @app.route('/admin/login', methods=['GET', 'POST'])
    def admin_login():
        """管理员登录"""
        if current_user.is_authenticated:
            return redirect(url_for('admin.index'))

        if request.method == 'POST':
            username = request.form.get('username')
            password = request.form.get('password')

            admin = AdminModel.query.filter_by(username=username).first()

            if admin and admin.check_password(password) and admin.is_active:
                login_user(admin)
                admin.last_login = datetime.now()
                db.session.commit()
                return redirect(url_for('admin.index'))
            else:
                flash('用户名或密码错误', 'error')

        return render_template('admin_login.html')

    @app.route('/admin/logout')
    @login_required
    def admin_logout():
        """管理员登出"""
        logout_user()
        return redirect(url_for('index'))

    @app.route('/admin/change-password', methods=['GET', 'POST'])
    @login_required
    def change_password():
        """修改密码"""
        if request.method == 'POST':
            old_password = request.form.get('old_password', '').strip()
            new_password = request.form.get('new_password', '').strip()
            confirm_password = request.form.get('confirm_password', '').strip()

            # 验证旧密码
            if not current_user.check_password(old_password):
                flash('旧密码错误', 'error')
                return render_template('admin/change_password.html')

            # 验证新密码
            if not new_password:
                flash('新密码不能为空', 'error')
                return render_template('admin/change_password.html')

            if len(new_password) < 6:
                flash('新密码长度至少6位', 'error')
                return render_template('admin/change_password.html')

            if new_password != confirm_password:
                flash('两次输入的新密码不一致', 'error')
                return render_template('admin/change_password.html')

            if old_password == new_password:
                flash('新密码不能与旧密码相同', 'error')
                return render_template('admin/change_password.html')

            # 修改密码
            try:
                current_user.set_password(new_password)
                db.session.commit()
                flash('密码修改成功，请重新登录', 'success')
                logout_user()
                return redirect(url_for('admin_login'))
            except Exception as e:
                db.session.rollback()
                flash(f'密码修改失败：{str(e)}', 'error')
                return render_template('admin/change_password.html')

        return render_template('admin/change_password.html')

    # ========== API路由 ==========
    @app.route('/api/fetch-website-info', methods=['POST'])
    @login_required
    def fetch_website_info():
        """抓取网站信息API"""
        try:
            data = request.get_json()
            url = data.get('url', '').strip()

            if not url:
                return jsonify({
                    'success': False,
                    'message': '请提供网站URL'
                }), 400

            # 创建抓取器
            fetcher = WebsiteFetcher(timeout=15)

            # 抓取网站信息
            info = fetcher.fetch_website_info(url)

            if not info:
                return jsonify({
                    'success': False,
                    'message': '无法获取网站信息，请检查URL是否正确或手动填写'
                })

            # 下载Logo到本地（如果有）
            logo_path = None
            if info.get('logo_url'):
                logo_path = fetcher.download_logo(info['logo_url'], save_dir='static/logos')

            # 如果下载失败，不返回远程URL，让用户手动上传
            return jsonify({
                'success': True,
                'data': {
                    'name': info.get('name', ''),
                    'description': info.get('description', ''),
                    'logo': logo_path if logo_path else ''
                }
            })

        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'抓取失败: {str(e)}'
            }), 500

    @app.route('/api/upload-logo', methods=['POST'])
    @login_required
    def upload_logo():
        """上传Logo图片API"""
        try:
            # 检查文件是否存在
            if 'logo' not in request.files:
                return jsonify({
                    'success': False,
                    'message': '请选择要上传的图片'
                }), 400

            file = request.files['logo']

            # 检查文件名
            if file.filename == '':
                return jsonify({
                    'success': False,
                    'message': '未选择文件'
                }), 400

            # 检查文件类型
            allowed_extensions = {'png', 'jpg', 'jpeg', 'gif', 'svg', 'ico', 'webp'}
            filename = file.filename.lower()
            if not any(filename.endswith('.' + ext) for ext in allowed_extensions):
                return jsonify({
                    'success': False,
                    'message': '不支持的文件格式，请上传图片文件(png, jpg, gif, svg, ico, webp)'
                }), 400

            # 创建保存目录
            save_dir = 'static/logos'
            os.makedirs(save_dir, exist_ok=True)

            # 生成安全的文件名
            import time
            import hashlib
            ext = os.path.splitext(filename)[1]
            timestamp = str(int(time.time() * 1000))
            hash_name = hashlib.md5(f"{filename}{timestamp}".encode()).hexdigest()[:16]
            safe_filename = f"logo_{hash_name}{ext}"
            filepath = os.path.join(save_dir, safe_filename)

            # 保存文件
            file.save(filepath)

            # 返回相对路径
            return jsonify({
                'success': True,
                'path': f'/{filepath.replace(os.sep, "/")}'
            })

        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'上传失败: {str(e)}'
            }), 500

    @app.route('/api/generate-features', methods=['POST'])
    @login_required
    def generate_features():
        """使用DeepSeek自动生成网站主要功能"""
        try:
            data = request.get_json()
            name = data.get('name', '').strip()
            description = data.get('description', '').strip()
            url = data.get('url', '').strip()

            if not name or not description:
                return jsonify({
                    'success': False,
                    'message': '请提供网站名称和描述'
                }), 400

            # 生成功能列表
            generator = TagGenerator()
            features = generator.generate_features(name, description, url)

            if not features:
                return jsonify({
                    'success': False,
                    'message': 'DeepSeek功能生成失败，请检查API配置'
                }), 500

            return jsonify({
                'success': True,
                'features': features
            })

        except ValueError as e:
            return jsonify({
                'success': False,
                'message': str(e)
            }), 400
        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'生成失败: {str(e)}'
            }), 500

    @app.route('/api/generate-description', methods=['POST'])
    @login_required
    def generate_description():
        """使用DeepSeek自动生成网站详细介绍"""
        try:
            data = request.get_json()
            name = data.get('name', '').strip()
            short_desc = data.get('short_desc', '').strip()
            url = data.get('url', '').strip()

            if not name:
                return jsonify({
                    'success': False,
                    'message': '请提供网站名称'
                }), 400

            # 生成详细介绍
            generator = TagGenerator()
            description = generator.generate_description(name, short_desc, url)

            if not description:
                return jsonify({
                    'success': False,
                    'message': 'DeepSeek详细介绍生成失败，请检查API配置'
                }), 500

            return jsonify({
                'success': True,
                'description': description
            })

        except ValueError as e:
            return jsonify({
                'success': False,
                'message': str(e)
            }), 400
        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'生成失败: {str(e)}'
            }), 500

    @app.route('/api/generate-tags', methods=['POST'])
    @login_required
    def generate_tags():
        """使用DeepSeek自动生成标签"""
        try:
            data = request.get_json()
            name = data.get('name', '').strip()
            description = data.get('description', '').strip()

            if not name or not description:
                return jsonify({
                    'success': False,
                    'message': '请提供网站名称和描述'
                }), 400

            # 获取现有标签作为参考
            existing_tags = [tag.name for tag in Tag.query.all()]

            # 生成标签
            generator = TagGenerator()
            suggested_tags = generator.generate_tags(name, description, existing_tags)

            if not suggested_tags:
                return jsonify({
                    'success': False,
                    'message': 'DeepSeek标签生成失败，请检查API配置'
                }), 500

            return jsonify({
                'success': True,
                'tags': suggested_tags
            })

        except ValueError as e:
            return jsonify({
                'success': False,
                'message': str(e)
            }), 400
        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'生成失败: {str(e)}'
            }), 500

    # ========== 新闻获取路由 ==========
    @app.route('/api/fetch-site-news', methods=['POST'])
    @login_required
    def fetch_site_news():
        """为指定网站获取最新新闻"""
        try:
            data = request.get_json()
            site_id = data.get('site_id')
            count = data.get('count', app.config.get('NEWS_SEARCH_COUNT', 10))
            freshness = data.get('freshness', app.config.get('NEWS_SEARCH_FRESHNESS', 'oneMonth'))

            if not site_id:
                return jsonify({
                    'success': False,
                    'message': '请提供网站ID'
                }), 400

            # 获取网站信息
            site = Site.query.get(site_id)
            if not site:
                return jsonify({
                    'success': False,
                    'message': '网站不存在'
                }), 404

            # 检查博查API配置
            api_key = app.config.get('BOCHA_API_KEY')
            if not api_key:
                return jsonify({
                    'success': False,
                    'message': '博查API未配置，请在.env文件中设置BOCHA_API_KEY'
                }), 500

            # 创建新闻搜索器
            searcher = NewsSearcher(api_key)

            # 搜索新闻
            news_items = searcher.search_site_news(
                site_name=site.name,
                site_url=site.url,
                news_keywords=site.news_keywords,  # v2.3新增：使用专用关键词
                count=count,
                freshness=freshness
            )

            if not news_items:
                return jsonify({
                    'success': False,
                    'message': '未找到相关新闻'
                }), 404

            # 保存新闻到数据库
            saved_count = 0
            for item in news_items:
                # 检查新闻是否已存在（根据URL判断）
                existing_news = News.query.filter_by(
                    site_id=site_id,
                    url=item['url']
                ).first()

                if not existing_news:
                    # 创建新闻记录
                    news = News(
                        site_id=site_id,
                        title=item['title'],
                        content=item.get('summary') or item.get('snippet', ''),
                        url=item['url'],
                        source_name=item.get('site_name', ''),
                        source_icon=item.get('site_icon', ''),
                        published_at=item.get('published_at'),
                        news_type='Search Result',
                        is_active=True
                    )
                    db.session.add(news)
                    saved_count += 1

            # 提交事务
            db.session.commit()

            return jsonify({
                'success': True,
                'message': f'成功获取并保存 {saved_count} 条新闻',
                'total_found': len(news_items),
                'saved': saved_count,
                'news_items': searcher.format_news_for_display(news_items)
            })

        except Exception as e:
            db.session.rollback()
            return jsonify({
                'success': False,
                'message': f'获取失败: {str(e)}'
            }), 500

    @app.route('/api/fetch-all-news', methods=['POST'])
    @login_required
    def fetch_all_news():
        """批量为所有网站获取新闻"""
        try:
            data = request.get_json()
            count_per_site = data.get('count', 5)  # 每个网站获取的新闻数量
            freshness = data.get('freshness', app.config.get('NEWS_SEARCH_FRESHNESS', 'oneMonth'))
            limit = data.get('limit', 10)  # 限制处理的网站数量

            # 检查博查API配置
            api_key = app.config.get('BOCHA_API_KEY')
            if not api_key:
                return jsonify({
                    'success': False,
                    'message': '博查API未配置，请在.env文件中设置BOCHA_API_KEY'
                }), 500

            # 获取启用的网站（按更新时间排序，优先处理旧的）
            sites = Site.query.filter_by(is_active=True).order_by(Site.updated_at).limit(limit).all()

            if not sites:
                return jsonify({
                    'success': False,
                    'message': '没有可用的网站'
                }), 404

            # 创建新闻搜索器
            searcher = NewsSearcher(api_key)

            # 统计信息
            total_saved = 0
            total_found = 0
            processed_sites = []

            # 为每个网站获取新闻
            for site in sites:
                try:
                    # 搜索新闻
                    news_items = searcher.search_site_news(
                        site_name=site.name,
                        site_url=site.url,
                        news_keywords=site.news_keywords,  # v2.3新增：使用专用关键词
                        count=count_per_site,
                        freshness=freshness
                    )

                    site_saved = 0
                    for item in news_items:
                        # 检查是否已存在
                        existing_news = News.query.filter_by(
                            site_id=site.id,
                            url=item['url']
                        ).first()

                        if not existing_news:
                            news = News(
                                site_id=site.id,
                                title=item['title'],
                                content=item.get('summary') or item.get('snippet', ''),
                                url=item['url'],
                                source_name=item.get('site_name', ''),
                                source_icon=item.get('site_icon', ''),
                                published_at=item.get('published_at'),
                                news_type='Search Result',
                                is_active=True
                            )
                            db.session.add(news)
                            site_saved += 1

                    total_found += len(news_items)
                    total_saved += site_saved

                    processed_sites.append({
                        'id': site.id,
                        'name': site.name,
                        'found': len(news_items),
                        'saved': site_saved
                    })

                except Exception as e:
                    # 单个网站失败不影响其他网站
                    processed_sites.append({
                        'id': site.id,
                        'name': site.name,
                        'error': str(e)
                    })
                    continue

            # 提交事务
            db.session.commit()

            return jsonify({
                'success': True,
                'message': f'批量获取完成，共处理 {len(processed_sites)} 个网站',
                'total_found': total_found,
                'total_saved': total_saved,
                'processed_sites': processed_sites
            })

        except Exception as e:
            db.session.rollback()
            return jsonify({
                'success': False,
                'message': f'批量获取失败: {str(e)}'
            }), 500

    # ========== SEO路由 (v2.4新增) ==========
    @app.route('/sitemap.xml')
    def sitemap():
        """动态生成sitemap.xml"""
        from flask import make_response

        # 获取所有启用的网站
        sites = Site.query.filter_by(is_active=True).order_by(Site.updated_at.desc()).all()

        # 获取所有标签
        tags = Tag.query.all()

        # 构建XML内容
        xml_content = '''<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'''

        # 首页
        xml_content += '''
    <url>
        <loc>{}</loc>
        <changefreq>daily</changefreq>
        <priority>1.0</priority>
    </url>'''.format(request.url_root.rstrip('/'))

        # 工具详情页
        for site in sites:
            xml_content += '''
    <url>
        <loc>{}</loc>
        <lastmod>{}</lastmod>
        <changefreq>weekly</changefreq>
        <priority>0.8</priority>
    </url>'''.format(
                request.url_root.rstrip('/') + url_for('site_detail', code=site.code),
                site.updated_at.strftime('%Y-%m-%d') if site.updated_at else datetime.now().strftime('%Y-%m-%d')
            )

        # 标签页
        for tag in tags:
            xml_content += '''
    <url>
        <loc>{}</loc>
        <changefreq>weekly</changefreq>
        <priority>0.6</priority>
    </url>'''.format(request.url_root.rstrip('/') + '/?tag=' + tag.slug)

        xml_content += '''
</urlset>'''

        response = make_response(xml_content)
        response.headers['Content-Type'] = 'application/xml; charset=utf-8'
        return response

    @app.route('/robots.txt')
    def robots():
        """动态生成robots.txt"""
        from flask import make_response

        robots_content = '''User-agent: *
Allow: /
Disallow: /admin/
Disallow: /api/

Sitemap: {}sitemap.xml
'''.format(request.url_root)

        response = make_response(robots_content)
        response.headers['Content-Type'] = 'text/plain; charset=utf-8'
        return response

    # ========== SEO工具管理路由 (v2.4新增) ==========
    @app.route('/admin/seo-tools')
    @login_required
    def seo_tools():
        """SEO工具管理页面"""
        # 检查static/sitemap.xml是否存在及最后更新时间
        sitemap_path = 'static/sitemap.xml'
        sitemap_info = None
        if os.path.exists(sitemap_path):
            import time
            mtime = os.path.getmtime(sitemap_path)
            sitemap_info = {
                'exists': True,
                'last_updated': datetime.fromtimestamp(mtime).strftime('%Y-%m-%d %H:%M:%S'),
                'size': os.path.getsize(sitemap_path)
            }
        else:
            sitemap_info = {'exists': False}

        return render_template('admin/seo_tools.html', sitemap_info=sitemap_info)

    @app.route('/api/generate-static-sitemap', methods=['POST'])
    @login_required
    def generate_static_sitemap():
        """生成静态sitemap.xml文件"""
        try:
            # 获取所有启用的网站
            sites = Site.query.filter_by(is_active=True).order_by(Site.updated_at.desc()).all()

            # 获取所有标签
            tags = Tag.query.all()

            # 构建XML内容（使用网站配置的域名）
            base_url = request.url_root.rstrip('/')

            xml_content = '''<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'''

            # 首页
            xml_content += f'''
    <url>
        <loc>{base_url}</loc>
        <changefreq>daily</changefreq>
        <priority>1.0</priority>
    </url>'''

            # 工具详情页
            for site in sites:
                xml_content += f'''
    <url>
        <loc>{base_url}/site/{site.code}</loc>
        <lastmod>{site.updated_at.strftime('%Y-%m-%d') if site.updated_at else datetime.now().strftime('%Y-%m-%d')}</lastmod>
        <changefreq>weekly</changefreq>
        <priority>0.8</priority>
    </url>'''

            # 标签页
            for tag in tags:
                xml_content += f'''
    <url>
        <loc>{base_url}/?tag={tag.slug}</loc>
        <changefreq>weekly</changefreq>
        <priority>0.6</priority>
    </url>'''

            xml_content += '''
</urlset>'''

            # 保存到static目录
            static_dir = 'static'
            os.makedirs(static_dir, exist_ok=True)
            sitemap_path = os.path.join(static_dir, 'sitemap.xml')

            with open(sitemap_path, 'w', encoding='utf-8') as f:
                f.write(xml_content)

            # 统计信息
            total_urls = 1 + len(sites) + len(tags)  # 首页 + 工具页 + 标签页

            return jsonify({
                'success': True,
                'message': f'静态sitemap.xml生成成功！共包含 {total_urls} 个URL',
                'total_urls': total_urls,
                'file_path': sitemap_path,
                'timestamp': datetime.now().strftime('%Y-%m-%d %H:%M:%S')
            })

        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'生成失败: {str(e)}'
            }), 500

    @app.route('/api/notify-search-engines', methods=['POST'])
    @login_required
    def notify_search_engines():
        """通知搜索引擎sitemap更新"""
        try:
            import requests
            from urllib.parse import quote

            # 获取sitemap URL（使用当前请求的域名）
            sitemap_url = request.url_root.rstrip('/') + '/sitemap.xml'
            encoded_sitemap_url = quote(sitemap_url, safe='')

            results = []

            # 1. 通知Google
            google_ping_url = f'http://www.google.com/ping?sitemap={encoded_sitemap_url}'
            try:
                google_response = requests.get(google_ping_url, timeout=10)
                results.append({
                    'engine': 'Google',
                    'status': 'success' if google_response.status_code == 200 else 'failed',
                    'status_code': google_response.status_code,
                    'message': '提交成功' if google_response.status_code == 200 else f'HTTP {google_response.status_code}'
                })
            except Exception as e:
                results.append({
                    'engine': 'Google',
                    'status': 'error',
                    'message': f'请求失败: {str(e)}'
                })

            # 2. 通知Baidu
            baidu_ping_url = f'http://data.zz.baidu.com/ping?sitemap={encoded_sitemap_url}'
            try:
                baidu_response = requests.get(baidu_ping_url, timeout=10)
                results.append({
                    'engine': 'Baidu',
                    'status': 'success' if baidu_response.status_code == 200 else 'failed',
                    'status_code': baidu_response.status_code,
                    'message': '提交成功' if baidu_response.status_code == 200 else f'HTTP {baidu_response.status_code}'
                })
            except Exception as e:
                results.append({
                    'engine': 'Baidu',
                    'status': 'error',
                    'message': f'请求失败: {str(e)}'
                })

            # 3. 通知Bing
            bing_ping_url = f'http://www.bing.com/ping?sitemap={encoded_sitemap_url}'
            try:
                bing_response = requests.get(bing_ping_url, timeout=10)
                results.append({
                    'engine': 'Bing',
                    'status': 'success' if bing_response.status_code == 200 else 'failed',
                    'status_code': bing_response.status_code,
                    'message': '提交成功' if bing_response.status_code == 200 else f'HTTP {bing_response.status_code}'
                })
            except Exception as e:
                results.append({
                    'engine': 'Bing',
                    'status': 'error',
                    'message': f'请求失败: {str(e)}'
                })

            # 统计成功数量
            success_count = sum(1 for r in results if r['status'] == 'success')

            return jsonify({
                'success': True,
                'message': f'已通知 {success_count}/{len(results)} 个搜索引擎',
                'sitemap_url': sitemap_url,
                'results': results
            })

        except Exception as e:
            return jsonify({
                'success': False,
                'message': f'通知失败: {str(e)}'
            }), 500

    @app.route('/api/refresh-site-news/<site_code>', methods=['POST'])
    def refresh_site_news(site_code):
        """手动刷新指定网站的新闻（前台用户可访问）- v2.3新增"""
        try:
            # 根据code查找网站
            site = Site.query.filter_by(code=site_code).first()
            if not site:
                return jsonify({
                    'success': False,
                    'message': '网站不存在'
                }), 404

            # 检查博查API配置
            api_key = app.config.get('BOCHA_API_KEY')
            if not api_key:
                return jsonify({
                    'success': False,
                    'message': '新闻功能未启用'
                }), 500

            # 创建新闻搜索器
            searcher = NewsSearcher(api_key)

            # 搜索新闻（获取最新5条）
            news_items = searcher.search_site_news(
                site_name=site.name,
                site_url=site.url,
                news_keywords=site.news_keywords,  # 使用专用关键词
                count=5,
                freshness='oneWeek'  # 一周内的新闻
            )

            if not news_items:
                return jsonify({
                    'success': False,
                    'message': '未找到相关新闻'
                }), 404

            # 保存新闻到数据库
            saved_count = 0
            for item in news_items:
                # 检查新闻是否已存在（根据URL判断）
                existing_news = News.query.filter_by(
                    site_id=site.id,
                    url=item['url']
                ).first()

                if not existing_news:
                    news = News(
                        site_id=site.id,
                        title=item['title'],
                        content=item.get('summary') or item.get('snippet', ''),
                        url=item['url'],
                        source_name=item.get('site_name', ''),
                        source_icon=item.get('site_icon', ''),
                        published_at=item.get('published_at'),
                        news_type='Search Result',
                        is_active=True
                    )
                    db.session.add(news)
                    saved_count += 1

            # 提交事务
            db.session.commit()

            return jsonify({
                'success': True,
                'message': f'成功获取 {saved_count} 条新资讯',
                'total_found': len(news_items),
                'saved_count': saved_count
            })

        except Exception as e:
            db.session.rollback()
            return jsonify({
                'success': False,
                'message': f'获取失败: {str(e)}'
            }), 500

    # ========== 批量导入路由 ==========
    @app.route('/admin/batch-import', methods=['GET', 'POST'])
    @login_required
    def batch_import():
        """批量导入网站"""
        from utils.bookmark_parser import BookmarkParser
        from utils.website_fetcher import WebsiteFetcher

        results = None

        if request.method == 'POST':
            import_type = request.form.get('import_type')
            auto_activate = request.form.get('auto_activate') == 'on'

            parser = BookmarkParser()
            fetcher = WebsiteFetcher(timeout=15)

            urls_to_import = []

            try:
                # 解析输入
                if import_type == 'url_list':
                    url_list_text = request.form.get('url_list', '')
                    urls_to_import = parser.parse_url_list(url_list_text)

                elif import_type == 'bookmark_file':
                    bookmark_file = request.files.get('bookmark_file')
                    if not bookmark_file:
                        flash('请选择书签文件', 'error')
                        return render_template('admin/batch_import.html')

                    html_content = bookmark_file.read().decode('utf-8', errors='ignore')
                    all_bookmarks = parser.parse_html_file(html_content)

                    # 筛选文件夹（如果指定）
                    folder_filter = request.form.get('folder_filter', '').strip()
                    if folder_filter:
                        urls_to_import = [
                            b for b in all_bookmarks
                            if folder_filter.lower() in b.get('folder', '').lower()
                        ]
                    else:
                        urls_to_import = all_bookmarks

                # 批量导入
                success_list = []
                failed_list = []

                for idx, item in enumerate(urls_to_import, 1):
                    url = item['url']
                    name = item.get('name', '')

                    # 为每个URL创建独立的事务
                    try:
                        # 1. 检查URL是否已存在
                        try:
                            existing = Site.query.filter_by(url=url).first()
                            if existing:
                                failed_list.append({
                                    'url': url,
                                    'name': name or existing.name,
                                    'error': f'该URL已存在（网站名称：{existing.name}）'
                                })
                                continue
                        except Exception as e:
                            failed_list.append({
                                'url': url,
                                'name': name,
                                'error': f'检查URL时出错: {str(e)}'
                            })
                            continue

                        # 2. 抓取网站信息（带超时和错误处理）
                        info = None
                        try:
                            info = fetcher.fetch_website_info(url)
                        except Exception as e:
                            print(f"抓取 {url} 失败: {str(e)}")
                            # 抓取失败不是致命错误，继续尝试使用书签名称

                        # 3. 处理网站信息
                        if not info or not info.get('name'):
                            # 如果有书签名称，使用书签名称
                            if name:
                                info = {
                                    'name': name,
                                    'description': '',
                                    'logo_url': ''
                                }
                            else:
                                # 尝试从URL提取域名作为名称
                                from urllib.parse import urlparse
                                try:
                                    parsed = urlparse(url)
                                    domain = parsed.netloc or parsed.path
                                    if domain:
                                        info = {
                                            'name': domain,
                                            'description': '',
                                            'logo_url': ''
                                        }
                                    else:
                                        failed_list.append({
                                            'url': url,
                                            'name': name,
                                            'error': '无法获取网站信息且没有备用名称'
                                        })
                                        continue
                                except Exception:
                                    failed_list.append({
                                        'url': url,
                                        'name': name,
                                        'error': '无法获取网站信息且URL解析失败'
                                    })
                                    continue

                        # 4. 下载Logo到本地（失败不影响导入）
                        logo_path = None
                        if info.get('logo_url'):
                            try:
                                logo_path = fetcher.download_logo(info['logo_url'], save_dir='static/logos')
                            except Exception as e:
                                print(f"下载Logo失败 ({url}): {str(e)}")
                                # Logo下载失败不影响网站导入

                        # 5. 生成code和slug
                        try:
                            import random
                            from pypinyin import lazy_pinyin
                            import re

                            # 生成唯一的code
                            site_code = None
                            max_attempts = 10
                            for _ in range(max_attempts):
                                code = str(random.randint(10000000, 99999999))
                                if not Site.query.filter_by(code=code).first():
                                    site_code = code
                                    break

                            if not site_code:
                                # 如果10次都失败，使用时间戳
                                import time
                                site_code = str(int(time.time() * 1000))[-8:]

                            # 生成slug
                            site_name = info.get('name', name or 'Unknown')[:100]
                            slug = ''.join(lazy_pinyin(site_name))
                            slug = slug.lower()
                            slug = re.sub(r'[^\w\s-]', '', slug)
                            slug = re.sub(r'[-\s]+', '-', slug).strip('-')
                            if not slug:
                                slug = f"site-{site_code}"

                            # 确保slug唯一
                            base_slug = slug[:50]  # 限制长度
                            counter = 1
                            final_slug = slug
                            while Site.query.filter_by(slug=final_slug).first():
                                final_slug = f"{base_slug}-{counter}"
                                counter += 1
                                if counter > 100:  # 防止无限循环
                                    final_slug = f"{base_slug}-{site_code}"
                                    break

                            # 6. 创建网站记录（带code和slug）
                            site = Site(
                                code=site_code,
                                slug=final_slug,
                                name=site_name,
                                url=url[:500],  # 限制URL长度
                                logo=logo_path or info.get('logo_url', '')[:500] if info.get('logo_url') else '',
                                short_desc=info.get('description', '')[:200] if info.get('description') else '',
                                description=info.get('description', '')[:2000] if info.get('description') else '',
                                is_active=auto_activate
                            )

                            # 添加到数据库并提交
                            db.session.add(site)
                            db.session.commit()

                            success_list.append({
                                'name': site.name,
                                'url': site.url
                            })

                            print(f"成功导入 [{idx}/{len(urls_to_import)}]: {site.name}")

                        except Exception as e:
                            db.session.rollback()
                            failed_list.append({
                                'url': url,
                                'name': name or info.get('name', 'Unknown'),
                                'error': f'数据库保存失败: {str(e)}'
                            })
                            continue

                    except Exception as e:
                        # 捕获所有未预期的错误
                        db.session.rollback()
                        failed_list.append({
                            'url': url,
                            'name': name,
                            'error': f'未知错误: {str(e)}'
                        })
                        print(f"导入 {url} 时发生未知错误: {str(e)}")
                        continue

                results = {
                    'total_count': len(urls_to_import),
                    'success_count': len(success_list),
                    'failed_count': len(failed_list),
                    'success_list': success_list,
                    'failed_list': failed_list
                }

                if success_list:
                    flash(f'成功导入 {len(success_list)} 个网站！', 'success')

            except Exception as e:
                flash(f'导入失败: {str(e)}', 'error')

        return render_template('admin/batch_import.html', results=results)

    # ========== Flask-Admin 配置 ==========
    class SecureModelView(ModelView):
        """需要登录的模型视图"""
        # 中文化配置
        can_set_page_size = True
        page_size = 20

        # 自定义文本
        list_template = 'admin/model/list.html'
        create_template = 'admin/model/create.html'
        edit_template = 'admin/model/edit.html'

        # 覆盖英文文本
        named_filter_urls = True

        def is_accessible(self):
            return current_user.is_authenticated

        def inaccessible_callback(self, name, **kwargs):
            return redirect(url_for('admin_login'))

    class SecureAdminIndexView(AdminIndexView):
        """需要登录的管理首页"""
        def is_accessible(self):
            return current_user.is_authenticated

        def inaccessible_callback(self, name, **kwargs):
            return redirect(url_for('admin_login'))

        @expose('/')
        def index(self):
            """控制台首页，显示统计信息"""
            # 统计数据
            stats = {
                'sites_count': Site.query.filter_by(is_active=True).count(),
                'tags_count': Tag.query.count(),
                'news_count': News.query.filter_by(is_active=True).count(),
                'total_views': db.session.query(db.func.sum(Site.view_count)).scalar() or 0
            }

            # 最近添加的工具（最多5个）
            recent_sites = Site.query.order_by(Site.created_at.desc()).limit(5).all()

            return self.render('admin/index.html', stats=stats, recent_sites=recent_sites)

    # 网站管理视图
    class SiteAdmin(SecureModelView):
        # 自定义模板
        create_template = 'admin/site/create.html'
        edit_template = 'admin/site/edit.html'

        # 启用编辑和删除
        can_edit = True
        can_delete = True
        can_create = True
        can_view_details = False  # 禁用查看详情，点击名称即可查看

        # 显示操作列
        column_display_actions = True
        action_disallowed_list = []

        column_list = ['id', 'code', 'name', 'url', 'slug', 'is_active', 'is_recommended', 'view_count', 'created_at']
        column_searchable_list = ['code', 'name', 'url', 'description']
        column_filters = ['is_active', 'is_recommended', 'tags']
        column_labels = {
            'id': 'ID',
            'code': '网站编码',
            'name': '网站名称',
            'url': 'URL',
            'slug': 'URL别名',
            'logo': 'Logo',
            'short_desc': '简短描述',
            'description': '详细介绍',
            'features': '主要功能',
            'news_keywords': '新闻关键词',
            'is_active': '是否启用',
            'is_recommended': '是否推荐',
            'view_count': '浏览次数',
            'sort_order': '排序权重',
            'tags': '标签',
            'created_at': '创建时间',
            'updated_at': '更新时间'
        }
        form_columns = ['name', 'url', 'slug', 'logo', 'short_desc', 'description', 'features', 'news_keywords', 'tags', 'is_active', 'is_recommended', 'sort_order']

        # 自定义编辑/删除文字
        column_extra_row_actions = None

        def on_model_change(self, form, model, is_created):
            """保存前自动生成code和slug（如果为空）"""
            import re
            import random
            from pypinyin import lazy_pinyin
            from flask import request

            # 使用no_autoflush防止在查询时触发提前flush
            with db.session.no_autoflush:
                # 处理手动输入的新标签
                new_tags_str = request.form.get('new_tags', '')
                if new_tags_str:
                    new_tag_names = [name.strip() for name in new_tags_str.split(',') if name.strip()]
                    for tag_name in new_tag_names:
                        # 检查标签是否已存在
                        existing_tag = Tag.query.filter_by(name=tag_name).first()
                        if not existing_tag:
                            # 创建新标签
                            tag_slug = ''.join(lazy_pinyin(tag_name))
                            tag_slug = tag_slug.lower()
                            tag_slug = re.sub(r'[^\w\s-]', '', tag_slug)
                            tag_slug = re.sub(r'[-\s]+', '-', tag_slug).strip('-')

                            # 确保slug唯一
                            base_tag_slug = tag_slug[:50]
                            counter = 1
                            final_tag_slug = tag_slug
                            while Tag.query.filter_by(slug=final_tag_slug).first():
                                final_tag_slug = f"{base_tag_slug}-{counter}"
                                counter += 1
                                if counter > 100:
                                    final_tag_slug = f"{base_tag_slug}-{random.randint(1000, 9999)}"
                                    break

                            new_tag = Tag(name=tag_name, slug=final_tag_slug)
                            db.session.add(new_tag)
                            db.session.flush()  # 确保新标签有ID

                            # 添加到模型的标签列表
                            if new_tag not in model.tags:
                                model.tags.append(new_tag)
                        else:
                            # 添加已存在的标签
                            if existing_tag not in model.tags:
                                model.tags.append(existing_tag)

                # 如果code为空，自动生成唯一的8位数字编码
                if not model.code or model.code.strip() == '':
                    max_attempts = 10
                    for attempt in range(max_attempts):
                        # 生成10000000-99999999之间的随机数
                        code = str(random.randint(10000000, 99999999))
                        # 检查是否已存在
                        existing = Site.query.filter(Site.code == code).first()
                        if not existing or existing.id == model.id:
                            model.code = code
                            break

                    # 如果10次都失败，使用时间戳
                    if not model.code:
                        import time
                        model.code = str(int(time.time() * 1000))[-8:]

                # 如果slug为空，从name自动生成
                if not model.slug or model.slug.strip() == '':
                    # 将中文转换为拼音
                    slug = ''.join(lazy_pinyin(model.name))
                    # 转换为小写，移除特殊字符
                    slug = slug.lower()
                    slug = re.sub(r'[^\w\s-]', '', slug)
                    slug = re.sub(r'[-\s]+', '-', slug).strip('-')

                    # 如果转换后为空，使用code
                    if not slug:
                        slug = f"site-{model.code}"

                    # 确保slug唯一（限制长度和重试次数）
                    base_slug = slug[:50]
                    counter = 1
                    final_slug = slug
                    max_slug_attempts = 100

                    while counter < max_slug_attempts:
                        existing = Site.query.filter(Site.slug == final_slug).first()
                        if not existing or existing.id == model.id:
                            break
                        final_slug = f"{base_slug}-{counter}"
                        counter += 1

                    # 如果100次都失败，使用code确保唯一
                    if counter >= max_slug_attempts:
                        final_slug = f"{base_slug}-{model.code}"

                    model.slug = final_slug

    # 标签管理视图
    class TagAdmin(SecureModelView):
        can_edit = True
        can_delete = True
        can_create = True
        can_view_details = False

        # 显示操作列
        column_display_actions = True

        column_list = ['id', 'name', 'slug', 'description', 'sort_order']
        column_searchable_list = ['name', 'description']
        column_labels = {
            'id': 'ID',
            'name': '标签名称',
            'slug': 'URL别名',
            'description': '标签描述',
            'seo_title': 'SEO标题 (v2.4)',
            'seo_description': 'SEO描述 (v2.4)',
            'seo_keywords': 'SEO关键词 (v2.4)',
            'icon': '图标',
            'sort_order': '排序权重',
            'created_at': '创建时间'
        }
        form_columns = ['name', 'slug', 'description', 'seo_title', 'seo_description', 'seo_keywords', 'icon', 'sort_order']

    # 管理员视图
    class AdminAdmin(SecureModelView):
        can_edit = True
        can_delete = True
        can_create = True
        can_view_details = False

        # 显示操作列
        column_display_actions = True

        column_list = ['id', 'username', 'email', 'is_active', 'last_login', 'created_at']
        column_searchable_list = ['username', 'email']
        column_filters = ['is_active']
        column_labels = {
            'id': 'ID',
            'username': '用户名',
            'email': '邮箱',
            'is_active': '是否启用',
            'created_at': '创建时间',
            'last_login': '最后登录'
        }
        form_columns = ['username', 'email', 'is_active']

        def on_model_change(self, form, model, is_created):
            # 如果是新建管理员，设置默认密码
            if is_created:
                model.set_password('admin123')  # 默认密码

    # 新闻管理视图
    class NewsAdmin(SecureModelView):
        can_edit = True
        can_delete = True
        can_create = True
        can_view_details = False

        # 显示操作列
        column_display_actions = True

        column_list = ['id', 'site', 'title', 'source_name', 'news_type', 'published_at', 'is_active']
        column_searchable_list = ['title', 'content', 'source_name']
        column_filters = ['site', 'news_type', 'source_name', 'is_active', 'published_at']
        column_labels = {
            'id': 'ID',
            'site': '关联网站',
            'title': '新闻标题',
            'content': '新闻内容',
            'news_type': '新闻类型',
            'url': '新闻链接',
            'source_name': '来源网站',
            'source_icon': '来源图标',
            'published_at': '发布时间',
            'is_active': '是否启用',
            'created_at': '创建时间',
            'updated_at': '更新时间'
        }
        form_columns = ['site', 'title', 'content', 'news_type', 'url', 'source_name', 'source_icon', 'published_at', 'is_active']

        # 可选的新闻类型
        form_choices = {
            'news_type': [
                ('Search Result', 'Search Result'),
                ('Product Update', 'Product Update'),
                ('Industry News', 'Industry News'),
                ('Company News', 'Company News'),
                ('Other', 'Other')
            ]
        }

        # 默认排序
        column_default_sort = ('published_at', True)  # 按发布时间倒序排列

    # Prompt模板管理视图
    class PromptAdmin(SecureModelView):
        can_edit = True
        can_delete = False  # 不允许删除，避免系统必需的prompt被删除
        can_create = True
        can_view_details = False

        # 显示操作列
        column_display_actions = True

        column_list = ['id', 'key', 'name', 'description', 'is_active', 'updated_at']
        column_searchable_list = ['key', 'name', 'description']
        column_filters = ['is_active', 'key']
        column_labels = {
            'id': 'ID',
            'key': '唯一标识',
            'name': '模板名称',
            'system_prompt': '系统提示词',
            'user_prompt_template': '用户提示词模板',
            'description': '模板说明',
            'is_active': '是否启用',
            'created_at': '创建时间',
            'updated_at': '更新时间'
        }
        form_columns = ['key', 'name', 'description', 'system_prompt', 'user_prompt_template', 'is_active']

        # 字段说明
        column_descriptions = {
            'key': '唯一标识，如: tags, features, description',
            'system_prompt': 'AI的系统角色设定',
            'user_prompt_template': '用户提示词模板，支持变量如 {name}, {description}, {url}',
        }

        # 表单字段配置
        form_widget_args = {
            'system_prompt': {
                'rows': 3,
                'style': 'font-family: monospace;'
            },
            'user_prompt_template': {
                'rows': 20,
                'style': 'font-family: monospace;'
            }
        }

    # 初始化 Flask-Admin
    admin = Admin(
        app,
        name='ZJPB 焦提示词',
        template_mode='bootstrap4',
        index_view=SecureAdminIndexView(name='控制台', url='/admin'),
        base_template='admin/master.html'
    )

    admin.add_view(SiteAdmin(Site, db.session, name='网站管理'))
    admin.add_view(TagAdmin(Tag, db.session, name='标签管理'))
    admin.add_view(NewsAdmin(News, db.session, name='新闻管理'))
    admin.add_view(PromptAdmin(PromptTemplate, db.session, name='Prompt管理'))
    admin.add_view(AdminAdmin(AdminModel, db.session, name='管理员', endpoint='admin_users'))

    return app

if __name__ == '__main__':
    app = create_app(os.getenv('FLASK_ENV', 'development'))
    app.run(host='0.0.0.0', port=5000, debug=True)