feat(server): modularize backend and admin console

app/repositories/publish_repository.py

@@ -0,0 +1,24 @@
+import sqlite3
+
+
+def version_exists(conn: sqlite3.Connection, app_id: str, channel: str, version: str) -> bool:
+    return conn.execute(
+        "SELECT 1 FROM versions WHERE app_id=? AND channel=? AND version=?",
+        (app_id, channel, version),
+    ).fetchone() is not None
+
+
+def create_version(conn: sqlite3.Connection, app_id: str, channel: str, version: str, client_protocol: int) -> int:
+    conn.execute("UPDATE versions SET latest=0 WHERE app_id=? AND channel=?", (app_id, channel))
+    cur = conn.execute(
+        "INSERT INTO versions(app_id, channel, version, latest, client_protocol) VALUES (?,?,?,1,?)",
+        (app_id, channel, version, client_protocol),
+    )
+    return int(cur.lastrowid)
+
+
+def insert_version_file(conn: sqlite3.Connection, version_id: int, path: str, sha256: str, size: int):
+    conn.execute(
+        "INSERT INTO version_files(version_id, path, sha256, size) VALUES (?,?,?,?)",
+        (version_id, path, sha256, size),
+    )