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4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 3f78ea8 4aaae80 4cd8837 3f78ea8 4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 4cd8837 4aaae80 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 | from __future__ import annotations
import sqlite3
import threading
import time
from dataclasses import dataclass
from pathlib import Path
@dataclass(frozen=True)
class Thread:
thread_id: str
name: str
members: list[str]
created_at: float
archived: bool
e2e_enabled: bool
@dataclass(frozen=True)
class ThreadMessage:
event_id: str
thread_id: str
sender: str
content: str
sent_at: float
delivered_to: frozenset[str]
class ThreadViewStore:
"""Materialised view of thread state from chat.thread.* events.
Uses SQLite when available, falls back to in-memory dicts.
"""
def __init__(self, db_path: str | Path | None = None) -> None:
self._lock = threading.Lock()
self._db: sqlite3.Connection | None = None
# In-memory fallback structures
self._threads: dict[str, dict] = {} # thread_id -> thread data
self._members: dict[str, set[str]] = {} # thread_id -> set of member_ids
self._messages: dict[str, dict] = {} # event_id -> message data
self._msg_by_thread: dict[str, list[str]] = {} # thread_id -> [event_id, ...]
# read receipts: thread_id -> {member_id -> last_read_ts}
self._read_receipts: dict[str, dict[str, float]] = {}
if db_path:
try:
self._db = sqlite3.connect(str(db_path), check_same_thread=False)
self._db.execute("PRAGMA journal_mode=WAL")
self._init_schema()
except Exception:
self._db = None
def _init_schema(self) -> None:
assert self._db is not None
self._db.executescript("""
CREATE TABLE IF NOT EXISTS threads (
thread_id TEXT PRIMARY KEY,
name TEXT NOT NULL,
created_at REAL NOT NULL,
archived INTEGER NOT NULL DEFAULT 0,
e2e_enabled INTEGER NOT NULL DEFAULT 0
);
CREATE TABLE IF NOT EXISTS thread_members (
thread_id TEXT NOT NULL,
member_id TEXT NOT NULL,
PRIMARY KEY (thread_id, member_id)
);
CREATE TABLE IF NOT EXISTS thread_messages (
event_id TEXT PRIMARY KEY,
thread_id TEXT NOT NULL,
sender TEXT NOT NULL,
content TEXT NOT NULL,
sent_at REAL NOT NULL
);
CREATE TABLE IF NOT EXISTS delivered_to (
event_id TEXT NOT NULL,
member_id TEXT NOT NULL,
PRIMARY KEY (event_id, member_id)
);
CREATE TABLE IF NOT EXISTS read_receipts (
thread_id TEXT NOT NULL,
member_id TEXT NOT NULL,
last_read_ts REAL NOT NULL,
PRIMARY KEY (thread_id, member_id)
);
""")
self._db.commit()
# ── Apply event ───────────────────────────────────────────────────────────
def apply(self, event: dict) -> None:
etype = event.get("event_type", "")
payload = event.get("payload", {})
author = event.get("author", "")
event_id = event.get("event_id", "")
with self._lock:
if etype == "chat.thread.created":
self._apply_thread_created(event_id, payload, author)
elif etype == "chat.thread.message.sent":
self._apply_message_sent(event_id, payload, author)
elif etype == "chat.thread.member.added":
self._apply_member_added(payload)
elif etype == "chat.thread.member.removed":
self._apply_member_removed(payload)
elif etype == "chat.thread.archived":
self._apply_archived(payload)
def _apply_thread_created(self, event_id: str, payload: dict, author: str) -> None:
thread_id = payload.get("thread_id", event_id)
members: list[str] = list(payload.get("members", []))
if author and author not in members:
members.append(author)
name = payload.get("name", "")
created_at = payload.get("created_at", time.time())
e2e_enabled = bool(payload.get("e2e_enabled", False))
if self._db:
self._db.execute(
"INSERT OR IGNORE INTO threads (thread_id, name, created_at, archived, e2e_enabled) VALUES (?,?,?,0,?)",
(thread_id, name, created_at, int(e2e_enabled)),
)
for m in members:
self._db.execute(
"INSERT OR IGNORE INTO thread_members (thread_id, member_id) VALUES (?,?)",
(thread_id, m),
)
self._db.commit()
else:
if thread_id not in self._threads:
self._threads[thread_id] = {
"thread_id": thread_id,
"name": name,
"created_at": created_at,
"archived": False,
"e2e_enabled": e2e_enabled,
}
self._members[thread_id] = set(members)
self._msg_by_thread[thread_id] = []
def _apply_message_sent(self, event_id: str, payload: dict, author: str) -> None:
thread_id = payload.get("thread_id", "")
sender = payload.get("sender", author)
content = payload.get("content", "")
sent_at = payload.get("sent_at", time.time())
if self._db:
self._db.execute(
"INSERT OR IGNORE INTO thread_messages (event_id, thread_id, sender, content, sent_at) VALUES (?,?,?,?,?)",
(event_id, thread_id, sender, content, sent_at),
)
self._db.commit()
else:
if event_id not in self._messages:
self._messages[event_id] = {
"event_id": event_id,
"thread_id": thread_id,
"sender": sender,
"content": content,
"sent_at": sent_at,
"delivered_to": set(),
}
self._msg_by_thread.setdefault(thread_id, []).append(event_id)
def _apply_member_added(self, payload: dict) -> None:
thread_id = payload.get("thread_id", "")
member_id = payload.get("member_id", "")
if not thread_id or not member_id:
return
if self._db:
self._db.execute(
"INSERT OR IGNORE INTO thread_members (thread_id, member_id) VALUES (?,?)",
(thread_id, member_id),
)
self._db.commit()
else:
self._members.setdefault(thread_id, set()).add(member_id)
def _apply_member_removed(self, payload: dict) -> None:
thread_id = payload.get("thread_id", "")
member_id = payload.get("member_id", "")
if not thread_id or not member_id:
return
if self._db:
self._db.execute(
"DELETE FROM thread_members WHERE thread_id=? AND member_id=?",
(thread_id, member_id),
)
self._db.commit()
else:
self._members.get(thread_id, set()).discard(member_id)
def _apply_archived(self, payload: dict) -> None:
thread_id = payload.get("thread_id", "")
if not thread_id:
return
if self._db:
self._db.execute("UPDATE threads SET archived=1 WHERE thread_id=?", (thread_id,))
self._db.commit()
else:
if thread_id in self._threads:
t = self._threads[thread_id]
t["archived"] = True
# ── Queries ───────────────────────────────────────────────────────────────
def get_thread(self, thread_id: str) -> Thread | None:
with self._lock:
if self._db:
row = self._db.execute(
"SELECT thread_id, name, created_at, archived, e2e_enabled FROM threads WHERE thread_id=?",
(thread_id,),
).fetchone()
if not row:
return None
members_rows = self._db.execute(
"SELECT member_id FROM thread_members WHERE thread_id=?", (thread_id,)
).fetchall()
members = [r[0] for r in members_rows]
return Thread(
thread_id=row[0],
name=row[1],
members=members,
created_at=row[2],
archived=bool(row[3]),
e2e_enabled=bool(row[4]),
)
t = self._threads.get(thread_id)
if not t:
return None
return Thread(
thread_id=t["thread_id"],
name=t["name"],
members=list(self._members.get(thread_id, set())),
created_at=t["created_at"],
archived=t["archived"],
e2e_enabled=t["e2e_enabled"],
)
def list_threads(self, member_id: str) -> list[Thread]:
with self._lock:
if self._db:
rows = self._db.execute(
"""SELECT t.thread_id, t.name, t.created_at, t.archived, t.e2e_enabled
FROM threads t
JOIN thread_members tm ON t.thread_id=tm.thread_id
WHERE tm.member_id=?
ORDER BY t.created_at DESC""",
(member_id,),
).fetchall()
result = []
for row in rows:
thread_id = row[0]
members_rows = self._db.execute(
"SELECT member_id FROM thread_members WHERE thread_id=?", (thread_id,)
).fetchall()
members = [r[0] for r in members_rows]
result.append(
Thread(
thread_id=thread_id,
name=row[1],
members=members,
created_at=row[2],
archived=bool(row[3]),
e2e_enabled=bool(row[4]),
)
)
return result
results = []
for tid, member_set in self._members.items():
if member_id in member_set:
t = self._threads.get(tid)
if t:
results.append(
Thread(
thread_id=t["thread_id"],
name=t["name"],
members=list(member_set),
created_at=t["created_at"],
archived=t["archived"],
e2e_enabled=t["e2e_enabled"],
)
)
results.sort(key=lambda x: x.created_at, reverse=True)
return results
def get_messages(
self,
thread_id: str,
since: float | None = None,
limit: int = 50,
) -> list[ThreadMessage]:
with self._lock:
if self._db:
if since is not None:
rows = self._db.execute(
"SELECT event_id, thread_id, sender, content, sent_at FROM thread_messages "
"WHERE thread_id=? AND sent_at>? ORDER BY sent_at ASC LIMIT ?",
(thread_id, since, limit),
).fetchall()
else:
rows = self._db.execute(
"SELECT event_id, thread_id, sender, content, sent_at FROM thread_messages "
"WHERE thread_id=? ORDER BY sent_at ASC LIMIT ?",
(thread_id, limit),
).fetchall()
messages = []
for row in rows:
eid = row[0]
delivered_rows = self._db.execute(
"SELECT member_id FROM delivered_to WHERE event_id=?", (eid,)
).fetchall()
delivered = frozenset(r[0] for r in delivered_rows)
messages.append(
ThreadMessage(
event_id=eid,
thread_id=row[1],
sender=row[2],
content=row[3],
sent_at=row[4],
delivered_to=delivered,
)
)
return messages
eids = self._msg_by_thread.get(thread_id, [])
msgs = []
for eid in eids:
m = self._messages.get(eid)
if m and (since is None or m["sent_at"] > since):
msgs.append(
ThreadMessage(
event_id=m["event_id"],
thread_id=m["thread_id"],
sender=m["sender"],
content=m["content"],
sent_at=m["sent_at"],
delivered_to=frozenset(m["delivered_to"]),
)
)
msgs.sort(key=lambda x: x.sent_at)
return msgs[:limit]
def unread_count(self, thread_id: str, member_id: str) -> int:
with self._lock:
if self._db:
row = self._db.execute(
"SELECT last_read_ts FROM read_receipts WHERE thread_id=? AND member_id=?",
(thread_id, member_id),
).fetchone()
last_read = row[0] if row else 0.0
count = self._db.execute(
"SELECT COUNT(*) FROM thread_messages WHERE thread_id=? AND sent_at>? AND sender!=?",
(thread_id, last_read, member_id),
).fetchone()[0]
return int(count)
last_read = self._read_receipts.get(thread_id, {}).get(member_id, 0.0)
eids = self._msg_by_thread.get(thread_id, [])
count = 0
for eid in eids:
m = self._messages.get(eid)
if m and m["sent_at"] > last_read and m["sender"] != member_id:
count += 1
return count
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