113 lines
4.9 KiB
Python
113 lines
4.9 KiB
Python
import pymysql
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from datetime import datetime, timedelta
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import redis
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import xml.etree.ElementTree as ET
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from message_summary.message_summary_4o import message_summary
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import mysql.connector.pooling
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class MessageStorage:
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def __init__(self, db_pool: mysql.connector.pooling.MySQLConnectionPool, redis_pool: redis.ConnectionPool):
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self.redis_pool = redis_pool
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self.db_pool = db_pool
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# 初始化本地缓存字典，使用 group_id 作为键
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self.local_membercounts = {}
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self.local_members = {}
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def _get_redis_connection(self):
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"""从连接池获取 Redis 连接"""
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return redis.Redis(connection_pool=self.redis_pool)
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def archive_message(self, group_id, timestamp_str, sender, content, message_type, attachment_url=None):
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# 连接到数据库
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connection = self.db_pool.get_connection()
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try:
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with connection.cursor() as cursor:
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# 插入消息信息
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sql = """
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INSERT INTO messages (group_id,timestamp, sender, content, message_type, attachment_url)
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VALUES (%s, %s, %s, %s, %s, %s)
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"""
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cursor.execute(sql, (group_id, timestamp_str, sender, content, message_type, attachment_url))
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# 提交事务
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connection.commit()
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print(f"Archived：{timestamp_str}:{group_id}:{sender}: {content}")
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except Exception as e:
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print(f"Error archiving message: {e}")
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connection.rollback()
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finally:
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# 关闭连接
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connection.close()
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def get_messages(self, group_id, all_contacts: dict):
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# 连接到数据库
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with self.db_pool.get_connection() as connection:
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# 获取 redis 中的上次总结时间，本次从上次开始算，若没有，则从 8 小时之前开始计算
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key = f"{group_id}:summary_time"
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last_summary_time = self._get_redis_connection().get(key)
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# 如果 Redis 返回值为字节类型，转换为字符串
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if last_summary_time:
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last_summary_time = last_summary_time.decode('utf-8')
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current_time = datetime.now()
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current_date = current_time.strftime('%Y-%m-%d %H:%M:%S')
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if not last_summary_time:
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# 获取当前时间并计算 8 小时前的时间
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eight_hours_ago = current_time - timedelta(hours=8)
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last_summary_time = eight_hours_ago.strftime('%Y-%m-%d %H:%M:%S')
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else:
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# 检查 redis 中的时间与当前时间差是否小于 3 小时
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last_summary_time_obj = datetime.strptime(last_summary_time, '%Y-%m-%d %H:%M:%S')
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time_diff = current_time - last_summary_time_obj
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if time_diff < timedelta(hours=3):
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# 如果小于 3 小时，取当天的内容
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last_summary_time = current_time.replace(hour=0, minute=0, second=0, microsecond=0).strftime(
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'%Y-%m-%d %H:%M:%S')
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elif time_diff > timedelta(days=1):
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# 如果超过 24 小时，将时间设置为当天 0 点
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last_summary_time = current_time.replace(hour=0, minute=0, second=0, microsecond=0).strftime(
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'%Y-%m-%d %H:%M:%S')
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# 更新 Redis 存储的当前时间
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# r.set(key, current_date)
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with connection.cursor() as cursor:
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# 执行查询，获取最近 8 小时的消息
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query = """
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SELECT timestamp, sender, content,message_type
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FROM messages
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WHERE timestamp >= %s AND message_type in(1,49) AND group_id = %s
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"""
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cursor.execute(query, (last_summary_time, group_id))
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# 构建最终的结果字符串
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# message_type 需要加入49类型，因为49是引用之后的发言。但是49是xml ，需要将content进行xml解析
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result = []
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for row in cursor.fetchall():
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timestamp, sender, content, message_type = row
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try:
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if message_type == "49":
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# 解析 XML 字符串
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root = ET.fromstring(content)
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# 提取 title 内容
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content = root.find('.//title').text
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except Exception as e:
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print(f"message_type 49 error: {e}")
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sender_name = all_contacts.get(sender, sender) # 获取发送者的名字，若找不到则使用原 ID
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result.append(f"{timestamp},{sender_name},{content}")
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result_str = "\n".join(result) # 将结果拼接为最终字符串
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print(result_str)
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return result_str
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