"""前端路由"""
from flask import Blueprint, render_template, request, abort
from app.services import ArticleService, CategoryService, TagService

frontend_bp = Blueprint('frontend', __name__)


@frontend_bp.route('/')
def index():
    """首页"""
    page = request.args.get('page', 1, type=int)
    category_id = request.args.get('category', type=int)
    tag_id = request.args.get('tag', type=int)
    
    # 获取文章列表
    articles = ArticleService.get_published_list(
        page=page, 
        category_id=category_id,
        tag_id=tag_id
    )
    
    # 获取侧边栏数据
    categories = CategoryService.get_all()
    tags = TagService.get_all()
    hot_articles = ArticleService.get_hot_articles()
    recent_articles = ArticleService.get_recent_articles()
    
    return render_template('frontend/index.html',
                         articles=articles,
                         categories=categories,
                         tags=tags,
                         hot_articles=hot_articles,
                         recent_articles=recent_articles,
                         current_category=category_id,
                         current_tag=tag_id)


@frontend_bp.route('/article/<slug>')
def article(slug):
    """文章详情页"""
    from flask import g
    
    article = ArticleService.get_by_slug(slug)
    if not article:
        abort(404)
    
    # 保存文章ID用于访问统计
    g.current_article_id = article.id
    
    # 获取侧边栏数据
    categories = CategoryService.get_all()
    tags = TagService.get_all()
    hot_articles = ArticleService.get_hot_articles()
    recent_articles = ArticleService.get_recent_articles()
    
    return render_template('frontend/article.html',
                         article=article,
                         categories=categories,
                         tags=tags,
                         hot_articles=hot_articles,
                         recent_articles=recent_articles)


@frontend_bp.route('/category/<int:category_id>')
def category(category_id):
    """分类文章列表"""
    category_obj = CategoryService.get_by_id(category_id)
    if not category_obj:
        abort(404)
    
    page = request.args.get('page', 1, type=int)
    articles = ArticleService.get_published_list(
        page=page,
        category_id=category_id
    )
    
    # 获取侧边栏数据
    categories = CategoryService.get_all()
    tags = TagService.get_all()
    hot_articles = ArticleService.get_hot_articles()
    recent_articles = ArticleService.get_recent_articles()
    
    return render_template('frontend/index.html',
                         articles=articles,
                         categories=categories,
                         tags=tags,
                         hot_articles=hot_articles,
                         recent_articles=recent_articles,
                         current_category=category_id,
                         category_title=category_obj.name)


@frontend_bp.route('/tag/<int:tag_id>')
def tag(tag_id):
    """标签文章列表"""
    tag_obj = TagService.get_by_id(tag_id)
    if not tag_obj:
        abort(404)
    
    page = request.args.get('page', 1, type=int)
    articles = ArticleService.get_published_list(
        page=page,
        tag_id=tag_id
    )
    
    # 获取侧边栏数据
    categories = CategoryService.get_all()
    tags = TagService.get_all()
    hot_articles = ArticleService.get_hot_articles()
    recent_articles = ArticleService.get_recent_articles()
    
    return render_template('frontend/index.html',
                         articles=articles,
                         categories=categories,
                         tags=tags,
                         hot_articles=hot_articles,
                         recent_articles=recent_articles,
                         current_tag=tag_id,
                         tag_title=tag_obj.name)


@frontend_bp.app_errorhandler(404)
def page_not_found(e):
    """404页面"""
    return render_template('frontend/404.html'), 404


@frontend_bp.app_errorhandler(500)
def internal_error(e):
    """500页面"""
    return render_template('frontend/500.html'), 500