# 常量定义
WEB_SERVER_DEFAULT_PORT = 8080
MAX_FILE_SIZE = 52428800  # 50MB
MAX_VIDEO_DURATION = 10000  # 10秒
VIDEO_FRAME_DELAY = 0.04  # 40毫秒
LOVE_FILE_PATH = "love.txt"
DEFAULT_MAX_HISTORY = 999999  # 无限制对话历史

import os
import sys
import importlib.util
import json
import re
import shutil
import time
import threading
from concurrent.futures import ThreadPoolExecutor, as_completed
from colorama import init, Fore, Style
from http.server import HTTPServer, BaseHTTPRequestHandler
from urllib.parse import urlparse, parse_qs
import socket
import webbrowser
from datetime import datetime
import logging
import asyncio
from typing import Optional
from io import StringIO

# ── 第三方依赖（全部 try/except 保护） ──

try:
    import requests
    REQUESTS_AVAILABLE = True
except ImportError:
    requests = None
    REQUESTS_AVAILABLE = False

try:
    from openai import OpenAI
    OPENAI_AVAILABLE = True
except ImportError:
    OpenAI = None
    OPENAI_AVAILABLE = False

try:
    import numpy as np
    NUMPY_AVAILABLE = True
except ImportError:
    np = None
    NUMPY_AVAILABLE = False

# tkinter 仅在视频播放功能中使用，服务器环境可能不可用
try:
    import tkinter as tk
    from tkinter import ttk
    TKINTER_AVAILABLE = True
except ImportError:
    TKINTER_AVAILABLE = False

# cv2 仅在视频播放功能中使用
try:
    import cv2
    CV2_AVAILABLE = True
except ImportError:
    CV2_AVAILABLE = False

# 图像显示相关（可选）
try:
    from PIL import Image
    PIL_AVAILABLE = True
except ImportError:
    PIL_AVAILABLE = False

try:
    from ascii_magic import AsciiArt
    ASCII_MAGIC_AVAILABLE = True
except ImportError:
    ASCII_MAGIC_AVAILABLE = False

# 统一工具管理器 - 支持 Liugin 和 Skill 双协议
try:
    from unified_tool_manager import UnifiedToolManager
    UNIFIED_TOOL_MANAGER_AVAILABLE = True
except ImportError:
    UNIFIED_TOOL_MANAGER_AVAILABLE = False

# TUI 模式已移除，全面使用 CLI 模式