Spaces:
Configuration error
Configuration error
File size: 9,345 Bytes
aa15bce |
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 |
from __future__ import annotations
import json
import re
import threading
from datetime import datetime
from html import escape, unescape
from pathlib import Path
from typing import List, Optional, Tuple
from ....logging_config import logger
from ....utils.timezones import now_in_user_timezone
from .state import LogEntry, SummaryState
_DATA_DIR = Path(__file__).resolve().parent.parent.parent.parent / "data"
_WORKING_MEMORY_LOG_PATH = _DATA_DIR / "conversation" / "poke_working_memory.log"
def _encode_payload(payload: str) -> str:
normalized = payload.replace("\r\n", "\n").replace("\r", "\n")
collapsed = normalized.replace("\n", "\\n")
return escape(collapsed, quote=False)
def _decode_payload(payload: str) -> str:
return unescape(payload).replace("\\n", "\n")
def _format_line(tag: str, payload: str, timestamp: Optional[str] = None) -> str:
encoded = _encode_payload(payload)
if timestamp:
return f"<{tag} timestamp=\"{timestamp}\">{encoded}</{tag}>\n"
return f"<{tag}>{encoded}</{tag}>\n"
def _current_timestamp() -> str:
return now_in_user_timezone("%Y-%m-%d %H:%M:%S")
class WorkingMemoryLog:
"""Persisted working-memory file storing conversation summary and recent entries."""
def __init__(self, path: Path) -> None:
self._path = path
self._lock = threading.Lock()
self._ensure_directory()
self._initialize_file()
def _ensure_directory(self) -> None:
try:
self._path.parent.mkdir(parents=True, exist_ok=True)
except Exception as exc: # pragma: no cover - defensive
logger.warning(
"working memory directory creation failed",
extra={"error": str(exc), "path": str(self._path)},
)
def _initialize_file(self) -> None:
with self._lock:
self._initialize_file_locked()
def _initialize_file_locked(self) -> None:
if self._path.exists() and self._path.stat().st_size > 0:
return
initial_state = SummaryState.empty()
lines = [
_format_line(
"summary_info",
json.dumps({"last_index": initial_state.last_index, "updated_at": None}),
),
_format_line("conversation_summary", ""),
]
try:
self._path.write_text("".join(lines), encoding="utf-8")
except Exception as exc: # pragma: no cover - defensive
logger.error(
"working memory initialization failed",
extra={"error": str(exc), "path": str(self._path)},
)
raise
def append_entry(self, tag: str, payload: str, timestamp: Optional[str] = None) -> None:
sanitized_timestamp = timestamp or _current_timestamp()
line = _format_line(tag, str(payload), sanitized_timestamp)
with self._lock:
try:
with self._path.open("a", encoding="utf-8") as handle:
handle.write(line)
except Exception as exc: # pragma: no cover - defensive
logger.error(
"working memory append failed",
extra={"error": str(exc), "tag": tag, "path": str(self._path)},
)
raise
def load_summary_state(self) -> SummaryState:
with self._lock:
try:
lines = self._path.read_text(encoding="utf-8").splitlines()
except FileNotFoundError:
return SummaryState.empty()
except Exception as exc: # pragma: no cover - defensive
logger.error(
"working memory read failed",
extra={"error": str(exc), "path": str(self._path)},
)
return SummaryState.empty()
summary_text = ""
last_index = -1
updated_at: Optional[datetime] = None
entries: List[LogEntry] = []
for raw_line in lines:
parsed = self._parse_line(raw_line)
if parsed is None:
continue
tag, timestamp, payload = parsed
if tag == "summary_info":
try:
data = json.loads(payload)
except json.JSONDecodeError:
continue
last_index_val = data.get("last_index")
if isinstance(last_index_val, int):
last_index = last_index_val
updated_raw = data.get("updated_at")
if isinstance(updated_raw, str) and updated_raw:
try:
updated_at = datetime.fromisoformat(updated_raw)
except ValueError:
updated_at = None
elif tag == "conversation_summary":
summary_text = payload
else:
entries.append(
LogEntry(tag=tag, payload=payload, timestamp=timestamp or None)
)
state = SummaryState(
summary_text=summary_text,
last_index=last_index,
updated_at=updated_at,
unsummarized_entries=entries,
)
return state
def write_summary_state(self, state: SummaryState) -> None:
meta_payload = json.dumps(
{
"last_index": state.last_index,
"updated_at": state.updated_at.isoformat() if state.updated_at else None,
}
)
lines = [_format_line("summary_info", meta_payload)]
lines.append(_format_line("conversation_summary", state.summary_text or ""))
for entry in state.unsummarized_entries:
lines.append(_format_line(entry.tag, entry.payload, entry.timestamp))
temp_path = self._path.with_suffix(".tmp")
data = "".join(lines)
with self._lock:
try:
temp_path.write_text(data, encoding="utf-8")
temp_path.replace(self._path)
except Exception as exc: # pragma: no cover - defensive
logger.error(
"working memory write failed",
extra={"error": str(exc), "path": str(self._path)},
)
raise
finally:
if temp_path.exists():
try:
temp_path.unlink()
except Exception: # pragma: no cover - defensive cleanup
pass
def render_transcript(self, state: Optional[SummaryState] = None) -> str:
snapshot = state or self.load_summary_state()
parts: List[str] = []
summary_text = (snapshot.summary_text or "").strip()
if summary_text:
safe_summary = escape(summary_text, quote=False)
parts.append(f"<conversation_summary>{safe_summary}</conversation_summary>")
for entry in snapshot.unsummarized_entries:
safe_payload = escape(entry.payload, quote=False)
if entry.timestamp:
parts.append(
f'<{entry.tag} timestamp="{entry.timestamp}">{safe_payload}</{entry.tag}>'
)
else:
parts.append(f'<{entry.tag}>{safe_payload}</{entry.tag}>')
return '\n'.join(parts)
def clear(self) -> None:
with self._lock:
try:
if self._path.exists():
self._path.unlink()
except Exception as exc: # pragma: no cover - defensive
logger.warning(
"working memory clear failed",
extra={"error": str(exc), "path": str(self._path)},
)
finally:
self._ensure_directory()
self._initialize_file_locked()
def _parse_line(self, line: str) -> Optional[Tuple[str, Optional[str], str]]:
stripped = line.strip()
if not stripped.startswith("<") or "</" not in stripped:
return None
open_end = stripped.find(">")
if open_end == -1:
return None
open_tag_content = stripped[1:open_end]
if " " in open_tag_content:
tag, attr_string = open_tag_content.split(" ", 1)
else:
tag, attr_string = open_tag_content, ""
close_start = stripped.rfind("</")
close_end = stripped.rfind(">")
if close_start == -1 or close_end == -1:
return None
closing_tag = stripped[close_start + 2 : close_end]
if closing_tag != tag:
return None
payload = stripped[open_end + 1 : close_start]
timestamp = None
if attr_string:
match = re.search(r'timestamp="([^"]*)"', attr_string)
if match:
timestamp = match.group(1)
return tag, timestamp, _decode_payload(payload)
_working_memory_log: Optional[WorkingMemoryLog] = None
_factory_lock = threading.Lock()
def get_working_memory_log() -> WorkingMemoryLog:
global _working_memory_log
if _working_memory_log is None:
with _factory_lock:
if _working_memory_log is None:
_working_memory_log = WorkingMemoryLog(_WORKING_MEMORY_LOG_PATH)
return _working_memory_log
__all__ = ["WorkingMemoryLog", "get_working_memory_log"]
|