"""状态定义"""
from typing import TypedDict
from playwright.async_api import Page


class NextPageState(TypedDict, total=False):
    """下一页选择器分析状态"""
    
    # 输入
    url: str
    page: Page
    
    # 节点1: fetch_page
    html: str
    
    # 节点2: find_pagination_area
    pagination_selector: str
    pagination_html: str
    has_pagination: int  # 0=无分页, 1=有分页
    
    # 节点3: find_next_button
    selector: str
    
    # 节点4: validate_next
    change_type: str  # url_change / content_change / new_tab / no_change
    is_valid: bool
    
    # 重试
    failed_selectors: list[str]
    retry_count: int
    
    # 错误
    error: str