rework gps data handling

eive_tmtc/tmtc/acs/gps.py

@@ -97,8 +97,27 @@ def pack_gps_command(object_id: bytes, q: DefaultPusQueueHelper, op_code: str):
         q.add_pus_tc(create_mode_command(object_id, Mode.OFF, 0))
 
 
-def handle_gps_data(pw: PrintWrapper, hk_data: bytes):
+def handle_gps_data(
-    pw.dlog(f"Received GPS data, HK data length {len(hk_data)}")
+    pw: PrintWrapper,
+    set_id: int,
+    hk_data: bytes,
+    packet_time: datetime.datetime,
+):
+    pw.ilog(_LOGGER, f"Received GPS CTRL HK with packet time {packet_time}")
+    match set_id:
+        case SetId.CORE_HK:
+            handle_core_data(pw, hk_data)
+        case SetId.SKYVIEW_HK:
+            handle_mgm_data_processed(pw, hk_data)
+
+
+def handle_core_data(pw: PrintWrapper, hk_data: bytes):
+    if len(hk_data) < 4*8+4+2+8:
+        pw.dlog(
+            f"GPS Core dataset with size {len(hk_data)} does not have expected size"
+            f" of {4*8+4+2+8} bytes"
+        )
+        return
     current_idx = 0
     fmt_str = "!ddddBBBHBBBBBI"
     inc_len = struct.calcsize(fmt_str)