feat(tg): db schema (user_id,thread_id) PK + converter context_key

adapter/telegram/converter.py

@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+from aiogram.types import Message
+
+from core.protocol import Attachment, IncomingMessage, OutgoingEvent, OutgoingMessage, OutgoingUI
+
+
+def from_message(message: Message) -> IncomingMessage | None:
+    """Convert aiogram Message to IncomingMessage. Returns None for General topic."""
+    thread_id = message.message_thread_id
+    if thread_id is None:
+        return None
+    return IncomingMessage(
+        user_id=str(message.from_user.id),
+        chat_id=str(thread_id),
+        text=message.text or message.caption or "",
+        attachments=_extract_attachments(message),
+        platform="telegram",
+    )
+
+
+def _extract_attachments(message: Message) -> list[Attachment]:
+    attachments: list[Attachment] = []
+    if message.photo:
+        file = message.photo[-1]
+        attachments.append(Attachment(
+            type="image",
+            url=f"tg://file/{file.file_id}",
+            mime_type="image/jpeg",
+        ))
+    if message.document:
+        attachments.append(Attachment(
+            type="document",
+            url=f"tg://file/{message.document.file_id}",
+            mime_type=message.document.mime_type or "application/octet-stream",
+            filename=message.document.file_name,
+        ))
+    if message.voice:
+        attachments.append(Attachment(
+            type="audio",
+            url=f"tg://file/{message.voice.file_id}",
+            mime_type="audio/ogg",
+        ))
+    return attachments
+
+
+def format_outgoing(event: OutgoingEvent) -> str:
+    """Extract text from an outgoing event for sending to Telegram."""
+    if isinstance(event, (OutgoingMessage, OutgoingUI)):
+        return event.text
+    return str(event)

adapter/telegram/db.py

@@ -0,0 +1,102 @@
+from __future__ import annotations
+
+import os
+import sqlite3
+from contextlib import contextmanager
+
+DB_PATH = os.environ.get("DB_PATH", "lambda_bot.db")
+
+
+@contextmanager
+def _conn():
+    con = sqlite3.connect(DB_PATH)
+    con.row_factory = sqlite3.Row
+    try:
+        yield con
+        con.commit()
+    finally:
+        con.close()
+
+
+def init_db() -> None:
+    with _conn() as con:
+        con.executescript("""
+            CREATE TABLE IF NOT EXISTS chats (
+                user_id     INTEGER  NOT NULL,
+                thread_id   INTEGER  NOT NULL,
+                chat_name   TEXT     NOT NULL DEFAULT 'Чат #1',
+                archived_at DATETIME,
+                created_at  DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+                PRIMARY KEY (user_id, thread_id)
+            );
+        """)
+
+
+def create_chat(user_id: int, thread_id: int, chat_name: str) -> None:
+    with _conn() as con:
+        con.execute(
+            "INSERT OR IGNORE INTO chats (user_id, thread_id, chat_name) VALUES (?, ?, ?)",
+            (user_id, thread_id, chat_name),
+        )
+
+
+def get_chat(user_id: int, thread_id: int) -> dict | None:
+    with _conn() as con:
+        row = con.execute(
+            "SELECT * FROM chats WHERE user_id = ? AND thread_id = ?",
+            (user_id, thread_id),
+        ).fetchone()
+        return dict(row) if row else None
+
+
+def get_active_chats(user_id: int) -> list[dict]:
+    with _conn() as con:
+        rows = con.execute(
+            "SELECT * FROM chats WHERE user_id = ? AND archived_at IS NULL "
+            "ORDER BY created_at ASC",
+            (user_id,),
+        ).fetchall()
+        return [dict(r) for r in rows]
+
+
+def count_active_chats(user_id: int) -> int:
+    with _conn() as con:
+        row = con.execute(
+            "SELECT COUNT(*) FROM chats WHERE user_id = ? AND archived_at IS NULL",
+            (user_id,),
+        ).fetchone()
+        return row[0]
+
+
+def archive_chat(user_id: int, thread_id: int) -> None:
+    with _conn() as con:
+        con.execute(
+            "UPDATE chats SET archived_at = CURRENT_TIMESTAMP "
+            "WHERE user_id = ? AND thread_id = ?",
+            (user_id, thread_id),
+        )
+
+
+def rename_chat(user_id: int, thread_id: int, new_name: str) -> None:
+    with _conn() as con:
+        con.execute(
+            "UPDATE chats SET chat_name = ? WHERE user_id = ? AND thread_id = ?",
+            (new_name, user_id, thread_id),
+        )
+
+
+def get_display_number(user_id: int, thread_id: int) -> int:
+    """Return 1-based display number for a chat (by creation order)."""
+    with _conn() as con:
+        row = con.execute(
+            """
+            SELECT rn FROM (
+                SELECT thread_id,
+                       ROW_NUMBER() OVER (PARTITION BY user_id ORDER BY created_at) AS rn
+                FROM chats
+                WHERE user_id = ?
+            ) WHERE thread_id = ?
+            """,
+            (user_id, thread_id),
+        ).fetchone()
+        return row[0] if row else 1