304 lines
10 KiB
Python
304 lines
10 KiB
Python
#!/usr/bin/env python3
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"""
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Django management command for AI chat with readline support
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Usage: python manage.py chat
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"""
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import os
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import readline
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import atexit
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from django.core.management.base import BaseCommand
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from products.aichat import AIChatService
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class ReadlineConfig:
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"""Readline配置类"""
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def __init__(self, history_file: str = None):
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self.history_file = history_file or os.path.expanduser("~/.aichat_history")
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self.commands = ['help', 'history', 'clear', 'readline-help', 'stats', 'quit', 'exit', 'q']
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self.setup_readline()
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def setup_readline(self):
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"""设置readline功能"""
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# 设置历史文件
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try:
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readline.read_history_file(self.history_file)
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except FileNotFoundError:
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pass
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# 设置历史文件大小
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readline.set_history_length(1000)
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# 注册退出时保存历史
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atexit.register(self.save_history)
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# 设置tab补全
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readline.parse_and_bind('tab: complete')
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# 设置其他有用的绑定
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readline.parse_and_bind('set editing-mode emacs') # 使用emacs编辑模式
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readline.parse_and_bind('set completion-ignore-case on') # 忽略大小写补全
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readline.parse_and_bind('set show-all-if-ambiguous on') # 显示所有可能的补全
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# 设置自定义补全器
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readline.set_completer(self.completer)
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# 设置补全分隔符
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readline.set_completer_delims(' \t\n`!@#$%^&*()=+[{]}\\|;:\'",<>?')
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def completer(self, text, state):
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"""自定义补全器"""
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options = [i for i in self.commands if i.startswith(text)]
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if state < len(options):
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return options[state]
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return None
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def save_history(self):
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"""保存历史到文件"""
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try:
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readline.write_history_file(self.history_file)
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except Exception as e:
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print(f"⚠️ 保存历史记录失败: {e}")
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def add_to_history(self, line: str):
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"""添加行到历史"""
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if line.strip():
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readline.add_history(line.strip())
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def get_history_stats(self):
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"""获取历史统计信息"""
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try:
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history_length = readline.get_current_history_length()
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return {
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'current_length': history_length,
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'max_length': readline.get_history_length(),
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'history_file': self.history_file
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}
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except Exception:
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return {'error': '无法获取历史统计信息'}
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def clear_history(self):
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"""清空readline历史"""
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try:
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readline.clear_history()
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print("🗑️ Readline历史已清空")
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except Exception as e:
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print(f"⚠️ 清空历史失败: {e}")
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class Command(BaseCommand):
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"""AI聊天管理命令"""
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help = '启动AI聊天系统，支持readline功能'
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def add_arguments(self, parser):
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"""添加命令行参数"""
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parser.add_argument(
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'--history-file',
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type=str,
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help='指定历史文件路径 (默认: ~/.aichat_history)'
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)
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parser.add_argument(
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'--chat-type',
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type=str,
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choices=['platform', 'product'],
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default='platform',
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help='聊天类型: platform(平台客服) 或 product(产品客服) (默认: platform)'
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)
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parser.add_argument(
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'--product-id',
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type=int,
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help='产品ID，当chat-type为product时必须提供'
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)
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def handle(self, *args, **options):
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"""执行命令"""
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# 参数验证
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chat_type = options.get('chat_type')
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product_id = options.get('product_id')
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if chat_type == 'product' and not product_id:
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self.stderr.write("❌ 错误: 当chat-type为product时，必须提供--product-id参数")
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self.stderr.write("示例: python manage.py chat --chat-type product --product-id 12345")
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return
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# 显示系统信息
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self.stdout.write("🚀 徵象防伪验证平台 AI客服系统")
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self.stdout.write("=" * 50)
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self.stdout.write(f"聊天类型: {chat_type.upper()}")
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if product_id:
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self.stdout.write(f"产品ID: {product_id}")
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self.stdout.write("输入 'help' 查看帮助信息")
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self.stdout.write("输入 'history' 查看对话历史")
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self.stdout.write("输入 'clear' 清空对话历史")
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self.stdout.write("输入 'quit' 或 'exit' 退出系统")
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self.stdout.write("=" * 50)
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self.stdout.write("💡 提示: 使用 ↑↓ 键浏览历史，Tab 键补全，Ctrl+A/E 跳转行首/尾")
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self.stdout.write("=" * 50)
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try:
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# 初始化readline
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readline_config = ReadlineConfig(options.get('history_file'))
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# 初始化AI服务，传递聊天类型和产品ID
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ai_service = AIChatService(
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chat_type=chat_type,
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product_id=product_id
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)
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self.stdout.write("✅ AI服务初始化成功！")
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self.stdout.write("")
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# 启动聊天循环
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self._chat_loop(ai_service, readline_config)
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except Exception as e:
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self.stderr.write(f"❌ 系统初始化失败: {str(e)}")
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self.stderr.write("请检查API密钥配置")
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def _chat_loop(self, ai_service, readline_config):
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"""聊天主循环"""
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while True:
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try:
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# 获取用户输入
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user_input = input("👤 您: ").strip()
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if not user_input:
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continue
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# 添加到readline历史
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readline_config.add_to_history(user_input)
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# 处理特殊命令
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if user_input.lower() in ['quit', 'exit', 'q']:
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self.stdout.write("👋 感谢使用，再见！")
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break
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elif user_input.lower() == 'help':
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self._print_help()
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continue
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elif user_input.lower() == 'history':
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ai_service.print_history()
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continue
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elif user_input.lower() == 'clear':
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ai_service.clear_history()
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self.stdout.write("🗑️ 对话历史已清空")
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continue
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elif user_input.lower() == 'readline-help':
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self._print_readline_help()
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continue
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elif user_input.lower() == 'stats':
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self._print_readline_stats(readline_config)
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continue
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# 发送消息给AI
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self.stdout.write("🤖 AI助手正在思考...")
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response = ai_service.chat(user_input)
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self.stdout.write(f"🤖 AI助手: {response}")
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self.stdout.write("")
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except KeyboardInterrupt:
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self.stdout.write("\n\n👋 感谢使用，再见！")
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break
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except EOFError:
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self.stdout.write("\n👋 再见！")
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break
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except Exception as e:
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self.stderr.write(f"❌ 发生错误: {str(e)}")
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self.stderr.write("请重试或输入 'quit' 退出")
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def _print_help(self):
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"""打印帮助信息"""
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help_text = """
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📖 帮助信息
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==========
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基本命令:
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- 直接输入文字与AI助手对话
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- help: 显示此帮助信息
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- history: 查看对话历史
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- clear: 清空对话历史
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- readline-help: 显示readline快捷键帮助
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- stats: 显示readline统计信息
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- quit/exit/q: 退出系统
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功能特性:
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- 智能客服问答
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- 二维码扫描验证（输入 '扫描' 或 '验证' 触发）
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- 防伪平台信息咨询
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- 多轮对话支持
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- 持久化输入历史记录
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使用提示:
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1. 可以询问平台功能、防伪验证等问题
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2. 需要验证产品时，AI会主动提供扫描功能
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3. 支持中文对话，表达自然即可
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4. 使用 ↑↓ 键快速访问历史输入
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"""
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self.stdout.write(help_text)
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def _print_readline_help(self):
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"""打印readline快捷键帮助"""
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readline_help = """
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⌨️ Readline 快捷键帮助
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=======================
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导航快捷键:
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↑/↓ - 浏览历史记录
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Ctrl+A - 跳转到行首
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Ctrl+E - 跳转到行尾
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Ctrl+B - 向后移动一个字符
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Ctrl+F - 向前移动一个字符
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Ctrl+P - 上一个历史记录 (同 ↑)
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Ctrl+N - 下一个历史记录 (同 ↓)
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编辑快捷键:
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Ctrl+U - 删除从光标到行首的内容
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Ctrl+K - 删除从光标到行尾的内容
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Ctrl+W - 删除光标前的一个单词
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Ctrl+D - 删除光标后的一个字符
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Ctrl+H - 删除光标前的一个字符 (同 Backspace)
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历史搜索:
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Ctrl+R - 反向搜索历史记录
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Ctrl+S - 正向搜索历史记录
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补全功能:
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Tab - 自动补全
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双击Tab - 显示所有可能的补全
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其他:
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Ctrl+L - 清屏
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Ctrl+C - 中断当前操作
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Ctrl+D - 退出 (EOF)
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💡 提示: 这些快捷键基于 Emacs 编辑模式，与大多数终端应用保持一致
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"""
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self.stdout.write(readline_help)
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def _print_readline_stats(self, readline_config):
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"""打印readline统计信息"""
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stats = readline_config.get_history_stats()
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if 'error' in stats:
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self.stderr.write(f"❌ {stats['error']}")
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return
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self.stdout.write("\n📊 Readline 统计信息")
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self.stdout.write("=" * 30)
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self.stdout.write(f"当前历史记录数: {stats['current_length']}")
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self.stdout.write(f"最大历史记录数: {stats['max_length']}")
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self.stdout.write(f"历史文件路径: {stats['history_file']}")
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# 检查历史文件大小
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try:
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if os.path.exists(stats['history_file']):
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file_size = os.path.getsize(stats['history_file'])
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self.stdout.write(f"历史文件大小: {file_size} 字节")
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else:
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self.stdout.write("历史文件: 尚未创建")
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except Exception:
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self.stdout.write("历史文件: 无法获取信息")
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self.stdout.write("=" * 30)
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