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3736c33 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | """
Chat management utilities for NotebookPRO.
"""
import json
from datetime import datetime
from pathlib import Path
from typing import List, Dict, Optional
import config
class ChatManager:
"""Manage chat sessions and history."""
def __init__(self):
self.chats_dir = config.CHATS_DIR
self.chats_dir.mkdir(parents=True, exist_ok=True)
def save_chat(self, chat_id: str, messages: List[Dict], space: Optional[str] = None) -> None:
"""
Save a chat session.
Args:
chat_id: Unique chat identifier
messages: List of message dictionaries
space: Optional space/subject name
"""
chat_data = {
'id': chat_id,
'messages': messages,
'space': space,
'created_at': datetime.now().isoformat(),
'updated_at': datetime.now().isoformat()
}
chat_file = self.chats_dir / f"{chat_id}.json"
with open(chat_file, 'w', encoding='utf-8') as f:
json.dump(chat_data, f, indent=2, ensure_ascii=False)
def load_chat(self, chat_id: str) -> Optional[Dict]:
"""
Load a chat session.
Args:
chat_id: Unique chat identifier
Returns:
Chat data dictionary or None if not found
"""
chat_file = self.chats_dir / f"{chat_id}.json"
if not chat_file.exists():
return None
with open(chat_file, 'r', encoding='utf-8') as f:
return json.load(f)
def list_chats(self, space: Optional[str] = None) -> List[Dict]:
"""
List all chats, optionally filtered by space.
Args:
space: Optional space filter
Returns:
List of chat metadata dictionaries
"""
chats = []
for chat_file in self.chats_dir.glob("*.json"):
with open(chat_file, 'r', encoding='utf-8') as f:
chat_data = json.load(f)
if space is None or chat_data.get('space') == space:
chats.append({
'id': chat_data['id'],
'space': chat_data.get('space'),
'message_count': len(chat_data['messages']),
'created_at': chat_data.get('created_at'),
'updated_at': chat_data.get('updated_at')
})
# Sort by updated time (most recent first)
chats.sort(key=lambda x: x.get('updated_at', ''), reverse=True)
return chats
def delete_chat(self, chat_id: str) -> bool:
"""
Delete a chat session.
Args:
chat_id: Unique chat identifier
Returns:
True if deleted, False if not found
"""
chat_file = self.chats_dir / f"{chat_id}.json"
if chat_file.exists():
chat_file.unlink()
return True
return False
def get_chat_preview(self, chat_id: str, max_messages: int = 5) -> Optional[List[Dict]]:
"""
Get a preview of recent messages from a chat.
Args:
chat_id: Unique chat identifier
max_messages: Maximum number of messages to return
Returns:
List of recent messages or None if chat not found
"""
chat_data = self.load_chat(chat_id)
if chat_data is None:
return None
messages = chat_data['messages']
return messages[-max_messages:] if len(messages) > max_messages else messages
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