better：重整配置，分离表达，聊天模式区分

重整配置文件路径，添加更多配置选项
分离了人设表达方式和学习到的表达方式
将聊天模式区分为normal focus和auto

src/individuality/expression_style.py

@@ -0,0 +1,159 @@
+import random
+from src.common.logger_manager import get_logger
+from src.chat.models.utils_model import LLMRequest
+from src.config.config import global_config
+from src.chat.utils.prompt_builder import Prompt, global_prompt_manager
+from typing import List, Tuple
+import os
+import json
+
+logger = get_logger("expressor")
+
+
+def init_prompt() -> None:
+    personality_expression_prompt = """
+{personality}
+
+请从以上人设中总结出这个角色可能的语言风格
+思考回复的特殊内容和情感
+思考有没有特殊的梗，一并总结成语言风格
+总结成如下格式的规律，总结的内容要详细，但具有概括性：
+当"xxx"时，可以"xxx", xxx不超过10个字
+
+例如：
+当"表示十分惊叹"时，使用"我嘞个xxxx"
+当"表示讽刺的赞同，不想讲道理"时，使用"对对对"
+当"想说明某个观点，但懒得明说"，使用"懂的都懂"
+
+现在请你概括
+"""
+    Prompt(personality_expression_prompt, "personality_expression_prompt")
+
+
+class PersonalityExpression:
+    def __init__(self):
+        self.express_learn_model: LLMRequest = LLMRequest(
+            model=global_config.model.normal,
+            temperature=0.1,
+            max_tokens=256,
+            request_type="response_heartflow",
+        )
+        self.meta_file_path = os.path.join("data", "expression", "personality", "expression_style_meta.json")
+        self.expressions_file_path = os.path.join("data", "expression", "personality", "expressions.json")
+        self.max_calculations = 5
+
+    def _read_meta_data(self):
+        if os.path.exists(self.meta_file_path):
+            try:
+                with open(self.meta_file_path, "r", encoding="utf-8") as f:
+                    return json.load(f)
+            except json.JSONDecodeError:
+                logger.warning(f"无法解析 {self.meta_file_path} 中的JSON数据，将重新开始。")
+                return {"last_style_text": None, "count": 0}
+        return {"last_style_text": None, "count": 0}
+
+    def _write_meta_data(self, data):
+        os.makedirs(os.path.dirname(self.meta_file_path), exist_ok=True)
+        with open(self.meta_file_path, "w", encoding="utf-8") as f:
+            json.dump(data, f, ensure_ascii=False, indent=2)
+
+    async def extract_and_store_personality_expressions(self):
+        """
+        检查data/expression/personality目录，不存在则创建。
+        用peronality变量作为chat_str，调用LLM生成表达风格，解析后count=100，存储到expressions.json。
+        如果expression_style发生变化，则删除旧的expressions.json并重置计数。
+        对于相同的expression_style，最多计算self.max_calculations次。
+        """
+        os.makedirs(os.path.dirname(self.expressions_file_path), exist_ok=True)
+
+        current_style_text = global_config.expression.expression_style
+        meta_data = self._read_meta_data()
+
+        last_style_text = meta_data.get("last_style_text")
+        count = meta_data.get("count", 0)
+
+        if current_style_text != last_style_text:
+            logger.info(f"表达风格已从 '{last_style_text}' 变为 '{current_style_text}'。重置计数。")
+            count = 0
+            if os.path.exists(self.expressions_file_path):
+                try:
+                    os.remove(self.expressions_file_path)
+                    logger.info(f"已删除旧的表达文件: {self.expressions_file_path}")
+                except OSError as e:
+                    logger.error(f"删除旧的表达文件 {self.expressions_file_path} 失败: {e}")
+
+        if count >= self.max_calculations:
+            logger.info(f"对于风格 '{current_style_text}' 已达到最大计算次数 ({self.max_calculations})。跳过提取。")
+            # 即使跳过，也更新元数据以反映当前风格已被识别且计数已满
+            self._write_meta_data({"last_style_text": current_style_text, "count": count})
+            return
+
+        # 构建prompt
+        prompt = await global_prompt_manager.format_prompt(
+            "personality_expression_prompt",
+            personality=current_style_text,
+        )
+        # logger.info(f"个性表达方式提取prompt: {prompt}")
+
+        try:
+            response, _ = await self.express_learn_model.generate_response_async(prompt)
+        except Exception as e:
+            logger.error(f"个性表达方式提取失败: {e}")
+            # 如果提取失败，保存当前的风格和未增加的计数
+            self._write_meta_data({"last_style_text": current_style_text, "count": count})
+            return
+
+        logger.info(f"个性表达方式提取response: {response}")
+        # chat_id用personality
+        expressions = self.parse_expression_response(response, "personality")
+        # 转为dict并count=100
+        result = []
+        for _, situation, style in expressions:
+            result.append({"situation": situation, "style": style, "count": 100})
+        # 超过50条时随机删除多余的，只保留50条
+        if len(result) > 50:
+            remove_count = len(result) - 50
+            remove_indices = set(random.sample(range(len(result)), remove_count))
+            result = [item for idx, item in enumerate(result) if idx not in remove_indices]
+
+        with open(self.expressions_file_path, "w", encoding="utf-8") as f:
+            json.dump(result, f, ensure_ascii=False, indent=2)
+        logger.info(f"已写入{len(result)}条表达到{self.expressions_file_path}")
+
+        # 成功提取后更新元数据
+        count += 1
+        self._write_meta_data({"last_style_text": current_style_text, "count": count})
+        logger.info(f"成功处理。风格 '{current_style_text}' 的计数现在是 {count}。")
+
+    def parse_expression_response(self, response: str, chat_id: str) -> List[Tuple[str, str, str]]:
+        """
+        解析LLM返回的表达风格总结，每一行提取"当"和"使用"之间的内容，存储为(situation, style)元组
+        """
+        expressions: List[Tuple[str, str, str]] = []
+        for line in response.splitlines():
+            line = line.strip()
+            if not line:
+                continue
+            # 查找"当"和下一个引号
+            idx_when = line.find('当"')
+            if idx_when == -1:
+                continue
+            idx_quote1 = idx_when + 1
+            idx_quote2 = line.find('"', idx_quote1 + 1)
+            if idx_quote2 == -1:
+                continue
+            situation = line[idx_quote1 + 1 : idx_quote2]
+            # 查找"使用"
+            idx_use = line.find('使用"', idx_quote2)
+            if idx_use == -1:
+                continue
+            idx_quote3 = idx_use + 2
+            idx_quote4 = line.find('"', idx_quote3 + 1)
+            if idx_quote4 == -1:
+                continue
+            style = line[idx_quote3 + 1 : idx_quote4]
+            expressions.append((chat_id, situation, style))
+        return expressions
+
+
+init_prompt()