Dev 0.9 (#115)

* make timestamp handling stateless

* adapt tests for stateless timestamp handling

* initial version

* add more type annotations

* add more type annotations

* fix Generator annotation for ha_proxy_confs

* fix names of issue branches

* add more type annotations

* don't use depricated varn anymore

* don't mark all test as async

* fix imports

* fix solarman unit tests

- fake Mqtt class

* print image build time during proxy start

* update changelog

* fix pytest collect warning

* cleanup msg_get_time handler

* addapt unit test

* label debug images with debug

* dump droped packages

* fix warnings

* add systemtest with invalid start byte

* update changelog

* update changelog

* add exposed ports and healthcheck

* add wget for healthcheck

* add aiohttp

* use config validation for healthcheck

* add http server for healthcheck

* calculate msg prossesing time

* add healthy check methods

* fix typo

* log ConfigErr with DEBUG level

* Update async_stream.py

- check if processing time is < 5 sec

* add a close handler to release internal resources

* call modbus close hanlder on a close call

* add exception handling for forward handler

* update changelog

* isolate Modbus fix

* cleanup

* update changelog

* add heaithy handler

* log unrelease references

* add healtcheck

* complete exposed port list

* add wget for healtcheck

* add aiohttp

* use Enum class for State

* calc processing time for healthcheck

* add HTTP server for healthcheck

* cleanup

* Update CHANGELOG.md

* updat changelog

* add docstrings to state enum

* set new state State.received

* add healthy method

* log healthcheck infos with DEBUG level

* update changelog

* S allius/issue100 (#101)

* detect dead connections

- disconnect connection on Msg receive timeout
- improve connection trace (add connection id)

* update changelog

* fix merge conflict

* fix unittests

* S allius/issue108 (#109)

* add more data types

* adapt unittests

* improve test coverage

* fix linter warning

* update changelog

* S allius/issue102 (#110)

* hotfix: don't send two MODBUS commands together

* fix unit tests

* remove read loop

* optional sleep between msg read and sending rsp

* wait after read 0.5s before sending a response

* add pending state

* fix state definitions

* determine the connection timeout by the conn state

* avoid sending MODBUS cmds in the inverter's reporting phase

* update changelog

* S allius/issue111 (#112)

Synchronize regular MODBUS commands with the status of the inverter to prevent the inverter from crashing due to unexpected packets.

* inital checkin

* remove crontab entry for regular MODBUS cmds

* add timer for regular MODBUS polling

* fix Stop method call for already stopped timer

* optimize MB_START_TIMEOUT value

* cleanup

* update changelog

* fix buildx warnings

* fix timer cleanup

* fix Config.class_init()

- return error string or None
- release Schema structure after building thr config

* add quit flag to docker push

* fix timout calculation

* rename python to debugpy

* add asyncio log

* cleanup shutdown
- stop webserver on shutdown
- enable asyncio debug mode for debug versions

* update changelog

* update changelog

* fix exception in MODBUS timeout callback

* update changelog

app/src/messages.py

@@ -1,6 +1,7 @@
 import logging
 import weakref
-from typing import Callable
+from typing import Callable, Generator
+from enum import Enum
 
 
 if __name__ == "app.src.messages":
@@ -45,21 +46,32 @@ def hex_dump_memory(level, info, data, num):
 
 
 class IterRegistry(type):
-    def __iter__(cls):
+    def __iter__(cls) -> Generator['Message', None, None]:
         for ref in cls._registry:
             obj = ref()
             if obj is not None:
                 yield obj
 
 
+class State(Enum):
+    '''state of the logical connection'''
+    init = 0
+    '''just created'''
+    received = 1
+    '''at least one packet received'''
+    up = 2
+    '''at least one cmd-rsp transaction'''
+    pend = 3
+    '''inverter transaction pending, don't send MODBUS cmds'''
+    closed = 4
+    '''connection closed'''
+
+
 class Message(metaclass=IterRegistry):
     _registry = []
-    STATE_INIT = 0
-    STATE_UP = 2
-    STATE_CLOSED = 3
 
     def __init__(self, server_side: bool, send_modbus_cb:
-                 Callable[[bytes, int, str], None], mb_timeout):
+                 Callable[[bytes, int, str], None], mb_timeout: int):
         self._registry.append(weakref.ref(self))
 
         self.server_side = server_side
@@ -78,7 +90,7 @@ class Message(metaclass=IterRegistry):
         self._send_buffer = bytearray(0)
         self._forward_buffer = bytearray(0)
         self.new_data = {}
-        self.state = self.STATE_INIT
+        self.state = State.init
 
     '''
     Empty methods, that have to be implemented in any child class which
@@ -97,7 +109,7 @@ class Message(metaclass=IterRegistry):
     '''
     def close(self) -> None:
         if self.mb:
-            del self.mb
+            self.mb.close()
             self.mb = None
         pass  # pragma: no cover