update Python client for example

satrs-example/pytmtc/common.py

@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+import dataclasses
+import enum
+import struct
+
+
+class Apid(enum.IntEnum):
+    SCHED = 1
+    GENERIC_PUS = 2
+    ACS = 3
+    CFDP = 4
+
+
+class EventSeverity(enum.IntEnum):
+    INFO = 0
+    LOW = 1
+    MEDIUM = 2
+    HIGH = 3
+
+
+@dataclasses.dataclass
+class EventU32:
+    severity: EventSeverity
+    group_id: int
+    unique_id: int
+
+    @classmethod
+    def unpack(cls, data: bytes) -> EventU32:
+        if len(data) < 4:
+            raise ValueError("passed data too short")
+        event_raw = struct.unpack("!I", data[0:4])[0]
+        return cls(
+            severity=EventSeverity((event_raw >> 30) & 0b11),
+            group_id=(event_raw >> 16) & 0x3FFF,
+            unique_id=event_raw & 0xFFFF,
+        )
+
+
+class AcsId(enum.IntEnum):
+    MGM_0 = 0
+
+
+class AcsHkIds(enum.IntEnum):
+    MGM_SET = 1
+
+
+def make_addressable_id(target_id: int, unique_id: int) -> bytes:
+    byte_string = bytearray(struct.pack("!I", target_id))
+    byte_string.extend(struct.pack("!I", unique_id))
+    return byte_string