add /api/v1/sim-cards GET endpoint

db.py

@@ -1,4 +1,4 @@
-from dto import Device
+from dto import Device, SimCard
 
 
 def get_all_devices(cur) -> list[Device]:
@@ -10,3 +10,13 @@ def get_all_devices(cur) -> list[Device]:
         devices.append(Device.convert(item))
     return devices
 
+
+def get_sim_cards_by_device(cur, access_key: str) -> list[SimCard]:
+    if access_key is None or not access_key:
+        return []
+
+    sim_cards_from_db = cur.execute("SELECT phone_number, device_access_key FROM sim_cards WHERE device_access_key = ?", (access_key,)).fetchall()
+    sim_cards = []
+    for item in sim_cards_from_db:
+        sim_cards.append(SimCard.convert(item))
+    return sim_cards