Initial tracke telemetry for contacts

app/migrations/_062_contact_telemetry_history.py

@@ -0,0 +1,40 @@
+import logging
+
+import aiosqlite
+
+logger = logging.getLogger(__name__)
+
+
+async def migrate(conn: aiosqlite.Connection) -> None:
+    """Create contact_telemetry_history table and tracked_telemetry_contacts setting."""
+    tables_cursor = await conn.execute("SELECT name FROM sqlite_master WHERE type='table'")
+    tables = {row[0] for row in await tables_cursor.fetchall()}
+
+    if "contact_telemetry_history" not in tables:
+        await conn.execute(
+            """
+            CREATE TABLE contact_telemetry_history (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                public_key TEXT NOT NULL,
+                timestamp INTEGER NOT NULL,
+                data TEXT NOT NULL,
+                FOREIGN KEY (public_key) REFERENCES contacts(public_key) ON DELETE CASCADE
+            )
+            """
+        )
+        await conn.execute(
+            """
+            CREATE INDEX IF NOT EXISTS idx_contact_telemetry_pk_ts
+                ON contact_telemetry_history(public_key, timestamp)
+            """
+        )
+
+    if "app_settings" in tables:
+        col_cursor = await conn.execute("PRAGMA table_info(app_settings)")
+        columns = {row[1] for row in await col_cursor.fetchall()}
+        if "tracked_telemetry_contacts" not in columns:
+            await conn.execute(
+                "ALTER TABLE app_settings ADD COLUMN tracked_telemetry_contacts TEXT DEFAULT '[]'"
+            )
+
+    await conn.commit()