claude强化功能
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542
backend/ai_chat.py
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542
backend/ai_chat.py
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"""AI 对话式分析 — 自然语言交互的炒股助手。
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功能：
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1. 自然语言选股
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2. 持仓诊断对话
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3. 策略建议
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4. 实时问答
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5. 上下文记忆（多轮对话）
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"""
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import json
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from typing import List, Dict, Any, Optional
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from datetime import datetime, date
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import llm
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import smart_selector as selector
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import portfolio as pf
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import ai
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import sector_rotation as sector
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from db import get_session
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from models import StockMetric, Trade
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# 会话上下文存储
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_SESSIONS = {} # {session_id: {"messages": [], "context": {}}}
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def get_or_create_session(session_id: str) -> Dict:
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"""获取或创建会话"""
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if session_id not in _SESSIONS:
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_SESSIONS[session_id] = {
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"messages": [],
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"context": {},
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"created_at": datetime.now().isoformat()
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}
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return _SESSIONS[session_id]
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def chat(session_id: str, user_message: str) -> Dict[str, Any]:
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"""AI对话主入口
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Args:
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session_id: 会话ID
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user_message: 用户消息
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Returns:
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AI回复
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"""
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if not llm.enabled():
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return {
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"ok": False,
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"msg": "大模型未配置，请在 backend/.env 中配置 LLM_API_KEY",
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"text": "抱歉，AI对话功能需要配置大模型。您可以：\n1. 配置 .env 中的 LLM_API_KEY\n2. 使用其他功能模块（选股、回测、板块分析等）"
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}
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session = get_or_create_session(session_id)
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# 添加用户消息到历史
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session["messages"].append({"role": "user", "content": user_message})
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# 意图识别 + Function Calling
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try:
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response = _process_message(session, user_message)
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# 添加助手回复到历史
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session["messages"].append({"role": "assistant", "content": response["text"]})
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# 限制历史长度（保留最近20轮）
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if len(session["messages"]) > 40:
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session["messages"] = session["messages"][-40:]
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return response
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except Exception as e:
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return {
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"ok": False,
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"msg": str(e),
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"text": f"处理消息时出错：{str(e)}"
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}
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def _process_message(session: Dict, message: str) -> Dict[str, Any]:
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"""处理用户消息，识别意图并调用相应功能"""
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# 构建系统提示
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system_prompt = """你是Blackdata股票分析助手，擅长A股分析和投资建议。
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你可以调用以下功能（通过JSON格式返回）：
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1. 选股功能
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格式：{"action": "select_stocks", "conditions": {"涨幅": ">10", "量比": ">2", ...}, "description": "..."}
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示例："帮我找近期突破的科技股" -> 识别为选股需求
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2. 持仓诊断
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格式：{"action": "diagnose_portfolio"}
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示例："我的持仓有什么风险？"
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3. 策略建议
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格式：{"action": "strategy_advice"}
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示例："当前市场适合什么策略？"
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4. 个股分析
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格式：{"action": "analyze_stock", "code": "600519"}
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示例："分析一下贵州茅台"
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5. 板块分析
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格式：{"action": "analyze_sector", "name": "半导体"}
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示例："半导体板块怎么样？"
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6. 普通对话
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格式：{"action": "chat", "text": "..."}
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示例：闲聊、问候等
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请根据用户问题，先判断意图，然后：
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- 如果需要调用功能，返回JSON格式的action
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- 如果是普通对话，直接回答
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重要：
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- 如果用户问题包含"找"、"选"、"筛选"等词，考虑选股功能
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- 如果问"我的持仓"、"风险"，调用持仓诊断
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- 如果问"策略"、"怎么操作"，给策略建议
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- 股票代码格式：6位数字
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"""
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# 构建对话历史
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messages = [{"role": "system", "content": system_prompt}]
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# 添加最近的对话历史（最多10轮）
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recent_messages = session["messages"][-20:] if len(session["messages"]) > 20 else session["messages"]
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messages.extend(recent_messages)
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# 调用大模型
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try:
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response_text = llm.ask_with_messages(messages, temperature=0.7, max_tokens=1500)
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# 尝试解析为JSON
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action = _parse_action(response_text)
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if action:
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return _execute_action(action, session)
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else:
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# 纯文本回复
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return {
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"ok": True,
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"type": "chat",
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"text": response_text
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}
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except Exception as e:
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return {
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"ok": False,
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"text": f"AI处理失败：{str(e)}"
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}
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def _parse_action(text: str) -> Optional[Dict]:
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"""解析AI回复中的action"""
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try:
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# 查找JSON块
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if "{" in text and "}" in text:
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start = text.find("{")
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end = text.rfind("}") + 1
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json_str = text[start:end]
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return json.loads(json_str)
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except:
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pass
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return None
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def _execute_action(action: Dict, session: Dict) -> Dict[str, Any]:
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"""执行具体功能"""
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action_type = action.get("action")
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if action_type == "select_stocks":
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return _handle_select_stocks(action, session)
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elif action_type == "diagnose_portfolio":
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return _handle_diagnose_portfolio(session)
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elif action_type == "strategy_advice":
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return _handle_strategy_advice(session)
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elif action_type == "analyze_stock":
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return _handle_analyze_stock(action, session)
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elif action_type == "analyze_sector":
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return _handle_analyze_sector(action, session)
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elif action_type == "chat":
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return {
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"ok": True,
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"type": "chat",
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"text": action.get("text", "我是Blackdata AI助手，有什么可以帮你？")
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}
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else:
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return {
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"ok": False,
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"text": "抱歉，我不太理解您的问题。您可以问我：\n- 帮我选股\n- 我的持仓怎么样\n- 给我策略建议\n- 分析某个股票或板块"
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}
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def _handle_select_stocks(action: Dict, session: Dict) -> Dict[str, Any]:
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"""处理选股请求"""
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# 从自然语言提取条件
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description = action.get("description", "")
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conditions = action.get("conditions", {})
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# 构建选股策略
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strategy = selector.Strategy("AI选股", description)
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# 将条件转换为选股条件
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for field, op_value in conditions.items():
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field_map = {
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"涨幅": "pct",
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"5日涨幅": "ret5",
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"20日涨幅": "ret20",
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"量比": "vol_ratio",
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"成交额": "amount",
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"RSI": "rsi14",
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"价格": "close"
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}
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if field in field_map:
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actual_field = field_map[field]
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# 解析操作符和值
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if isinstance(op_value, str):
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if op_value.startswith(">"):
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op = ">"
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val = float(op_value[1:].strip())
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elif op_value.startswith("<"):
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op = "<"
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val = float(op_value[1:].strip())
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else:
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continue
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strategy.add_condition(actual_field, op, val)
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# 如果没有条件，添加默认条件
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if not strategy.conditions:
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strategy.add_condition("ret5", ">", 5)
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strategy.add_condition("vol_ratio", ">", 1.5)
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# 执行选股
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result = selector.run_selector(strategy)
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if not result["ok"]:
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return {
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"ok": False,
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"text": f"选股失败：{result.get('msg', '未知错误')}"
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}
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# 保存选股结果到上下文
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session["context"]["last_selection"] = result["results"][:10]
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# 格式化回复
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stocks = result["results"][:10]
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if not stocks:
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text = "根据您的条件，暂时没有找到符合的股票。您可以：\n1. 放宽筛选条件\n2. 尝试其他板块\n3. 等待市场出现机会"
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else:
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text = f"为您找到 {result['count']} 只股票，以下是前10只：\n\n"
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for i, s in enumerate(stocks, 1):
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text += f"{i}. {s['name']}（{s['code']}）\n"
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text += f" 现价：{s['close']}元 涨跌：{s['pct']:+.2f}% 5日：{s['ret5']:+.2f}%\n"
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text += f" 量比：{s['vol_ratio']:.2f} 成交额：{s['amount']:.1f}亿\n\n"
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text += "💡 您可以继续问我：\n- 分析某只股票（如\"分析第1只\"）\n- 回测这个策略\n- 看看其他板块"
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return {
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"ok": True,
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"type": "select_stocks",
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"text": text,
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"data": stocks
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}
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def _handle_diagnose_portfolio(session: Dict) -> Dict[str, Any]:
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"""处理持仓诊断"""
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try:
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portfolio = pf.compute()
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if not portfolio["holdings"]:
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return {
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"ok": True,
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"type": "diagnose",
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"text": "您当前没有持仓。建议：\n1. 先在「交易日志」录入交易记录\n2. 或者问我\"帮我选股\"来寻找投资机会"
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}
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summary = portfolio["summary"]
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holdings = portfolio["holdings"]
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# 分析持仓
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total_unrealized = summary["unrealized"]
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win_rate = summary["win_rate"]
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# 风险诊断
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risks = []
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# 1. 浮亏检查
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losing_positions = [h for h in holdings if h["unrealized"] < 0]
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if len(losing_positions) > len(holdings) / 2:
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risks.append(f"⚠️ 超过一半的持仓处于浮亏状态（{len(losing_positions)}/{len(holdings)}只）")
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# 2. 集中度检查
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if len(holdings) < 3:
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risks.append("⚠️ 持仓过于集中，建议分散投资")
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# 3. 胜率检查
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if win_rate < 40:
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risks.append(f"⚠️ 历史胜率较低（{win_rate}%），建议反思选股策略")
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# 构建回复
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text = f"📊 持仓诊断报告\n\n"
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text += f"持仓数量：{summary['positions']} 只\n"
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text += f"持仓市值：{summary['market_value']:.2f} 元\n"
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text += f"浮动盈亏：{total_unrealized:+.2f} 元\n"
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text += f"历史胜率：{win_rate}%\n\n"
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if risks:
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text += "⚠️ 风险提示：\n"
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for risk in risks:
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text += f"{risk}\n"
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text += "\n"
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# 前5大持仓
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text += "📈 前5大持仓：\n"
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for i, h in enumerate(holdings[:5], 1):
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pnl_sign = "+" if h["unrealized"] >= 0 else ""
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text += f"{i}. {h['name']} {pnl_sign}{h['unrealized_pct']:.2f}% {pnl_sign}{h['unrealized']:.0f}元\n"
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text += "\n💡 建议：\n"
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if risks:
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text += "- 考虑止损浮亏较大的股票\n"
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text += "- 增加持仓分散度\n"
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else:
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text += "- 当前持仓状况良好，继续关注\n"
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text += "- 定期复盘，总结经验\n"
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# 保存到上下文
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session["context"]["portfolio"] = holdings
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return {
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"ok": True,
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"type": "diagnose",
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"text": text,
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"data": portfolio
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}
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except Exception as e:
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return {
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"ok": False,
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"text": f"持仓诊断失败：{str(e)}"
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}
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def _handle_strategy_advice(session: Dict) -> Dict[str, Any]:
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"""处理策略建议"""
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try:
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# 获取市场情绪
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summary = sector.get_rotation_summary()
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if not summary.get("ok"):
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return {
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"ok": False,
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"text": "暂时无法获取市场数据，请稍后再试"
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}
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strongest = summary.get("strongest_sectors", [])
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weakest = summary.get("weakest_sectors", [])
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# 构建策略建议
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text = "📋 当前市场策略建议\n\n"
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text += "🔥 强势板块：\n"
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for s in strongest[:3]:
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text += f"- {s['name']} {s['return_10d']:+.2f}%\n"
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text += "\n"
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text += "📉 弱势板块：\n"
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for s in weakest[:3]:
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text += f"- {s['name']} {s['return_10d']:+.2f}%\n"
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text += "\n"
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# 策略建议
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avg_return = sum(s['return_10d'] for s in strongest[:3]) / 3 if strongest else 0
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if avg_return > 10:
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text += "💡 策略建议：\n"
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text += "- 市场情绪较好，适合进攻型策略\n"
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text += "- 可关注强势板块的龙头股\n"
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text += "- 设置好止盈点，及时落袋为安\n"
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elif avg_return > 0:
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text += "💡 策略建议：\n"
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text += "- 市场震荡，适合波段操作\n"
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text += "- 追踪强势板块，低吸高抛\n"
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text += "- 控制仓位，分批建仓\n"
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else:
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text += "💡 策略建议：\n"
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text += "- 市场偏弱，以防守为主\n"
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text += "- 减仓观望，等待机会\n"
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text += "- 关注超跌板块的反弹机会\n"
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text += "\n🎯 具体操作：\n"
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text += "- 可以问我\"帮我找[强势板块]的股票\"\n"
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text += "- 或\"分析[某个板块]\"\n"
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return {
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"ok": True,
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"type": "strategy",
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"text": text,
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"data": summary
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}
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except Exception as e:
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return {
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"ok": False,
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"text": f"策略建议失败：{str(e)}"
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}
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def _handle_analyze_stock(action: Dict, session: Dict) -> Dict[str, Any]:
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"""处理个股分析"""
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code = action.get("code", "").strip()
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if not code:
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# 从上下文中获取
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last_selection = session["context"].get("last_selection", [])
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if last_selection:
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code = last_selection[0]["code"]
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else:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": "请指定股票代码，例如\"分析600519\""
|
||||
}
|
||||
|
||||
try:
|
||||
result = ai.diagnose(code)
|
||||
|
||||
if not result["ok"]:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": f"分析失败：{result.get('msg', '未知错误')}"
|
||||
}
|
||||
|
||||
# 格式化回复
|
||||
text = f"📊 {result['name']}（{result['symbol']}）AI诊断\n\n"
|
||||
text += f"综合评分：{result['total']}分\n"
|
||||
text += f"预测方向：{'看多' if result['direction'] == 'up' else ('看空' if result['direction'] == 'down' else '中性')}\n"
|
||||
text += f"置信度：{result['confidence']}%\n\n"
|
||||
|
||||
text += "📈 各维度评分：\n"
|
||||
for dim, score in result["scores"].items():
|
||||
text += f"- {dim}：{score}分\n"
|
||||
|
||||
text += f"\n💬 {result['text'][:300]}...\n"
|
||||
text += "\n💡 完整分析请在「AI分析 → 个股诊断」页面查看"
|
||||
|
||||
return {
|
||||
"ok": True,
|
||||
"type": "analyze_stock",
|
||||
"text": text,
|
||||
"data": result
|
||||
}
|
||||
|
||||
except Exception as e:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": f"分析失败：{str(e)}"
|
||||
}
|
||||
|
||||
|
||||
def _handle_analyze_sector(action: Dict, session: Dict) -> Dict[str, Any]:
|
||||
"""处理板块分析"""
|
||||
|
||||
sector_name = action.get("name", "").strip()
|
||||
|
||||
if not sector_name:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": "请指定板块名称，例如\"分析半导体板块\""
|
||||
}
|
||||
|
||||
try:
|
||||
result = sector.analyze_lifecycle(sector_name, days=60)
|
||||
|
||||
if not result["ok"]:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": f"分析失败：{result.get('msg', '未知错误')}"
|
||||
}
|
||||
|
||||
# 格式化回复
|
||||
text = f"📊 {result['sector']} 板块分析\n\n"
|
||||
text += f"生命周期：{result['phase']}\n"
|
||||
text += f"{result['description']}\n\n"
|
||||
|
||||
metrics = result["metrics"]
|
||||
text += f"📈 近期表现：\n"
|
||||
text += f"- 5日涨幅：{metrics['return_5d']:+.2f}%\n"
|
||||
text += f"- 20日涨幅：{metrics['return_20d']:+.2f}%\n"
|
||||
text += f"- 成交额变化：{metrics['amount_change']:+.2f}%\n\n"
|
||||
|
||||
# 龙头股
|
||||
leaders = sector.identify_leaders(sector_name, limit=5)
|
||||
if leaders["ok"] and leaders["leaders"]:
|
||||
text += "🏆 龙头股：\n"
|
||||
for i, l in enumerate(leaders["leaders"][:3], 1):
|
||||
text += f"{i}. {l['name']} {l['ret20']:+.2f}%\n"
|
||||
|
||||
text += "\n💡 您可以继续问：\n"
|
||||
text += f"- 帮我找{sector_name}板块的股票\n"
|
||||
text += f"- {sector_name}龙头股有哪些\n"
|
||||
|
||||
return {
|
||||
"ok": True,
|
||||
"type": "analyze_sector",
|
||||
"text": text,
|
||||
"data": result
|
||||
}
|
||||
|
||||
except Exception as e:
|
||||
return {
|
||||
"ok": False,
|
||||
"text": f"分析失败：{str(e)}"
|
||||
}
|
||||
|
||||
|
||||
def clear_session(session_id: str):
|
||||
"""清空会话"""
|
||||
if session_id in _SESSIONS:
|
||||
del _SESSIONS[session_id]
|
||||
|
||||
|
||||
def get_session_history(session_id: str) -> List[Dict]:
|
||||
"""获取会话历史"""
|
||||
session = _SESSIONS.get(session_id)
|
||||
if session:
|
||||
return session["messages"]
|
||||
return []
|
||||
Reference in New Issue
Block a user