refactoring

app/src/async_ifc.py

@@ -1,11 +1,111 @@
-if __name__ == "app.src.async_ifc":
-    from app.src.byte_fifo import ByteFifo
-else:  # pragma: no cover
-    from byte_fifo import ByteFifo
+from abc import ABC, abstractmethod
 
 
-class AsyncIfc():
-    def __init__(self):
-        self.read = ByteFifo()
-        self.write = ByteFifo()
-        self.forward = ByteFifo()
+class AsyncIfc(ABC):
+    @abstractmethod
+    def get_conn_no(self):
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def set_node_id(self, value: str):
+        pass  # pragma: no cover
+
+    #
+    #  TX - QUEUE
+    #
+    @abstractmethod
+    def tx_add(self, data: bytearray):
+        ''' add data to transmit queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_flush(self):
+        ''' send transmit queue and clears it'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_get(self, size: int = None) -> bytearray:
+        '''removes size numbers of bytes and return them'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_peek(self, size: int = None) -> bytearray:
+        '''returns size numbers of byte without removing them'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_log(self, level, info):
+        ''' log the transmit queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_clear(self):
+        ''' clear transmit queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def tx_len(self):
+        ''' get numner of bytes in the transmit queue'''
+        pass  # pragma: no cover
+
+    #
+    #  FORWARD - QUEUE
+    #
+    @abstractmethod
+    def fwd_add(self, data: bytearray):
+        ''' add data to forward queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def fwd_flush(self):
+        ''' send forward queue and clears it'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def fwd_log(self, level, info):
+        ''' log the forward queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def fwd_clear(self):
+        ''' clear forward queue'''
+        pass  # pragma: no cover
+
+    #
+    #  RX - QUEUE
+    #
+    @abstractmethod
+    def rx_get(self, size: int = None) -> bytearray:
+        '''removes size numbers of bytes and return them'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def rx_peek(self, size: int = None) -> bytearray:
+        '''returns size numbers of byte without removing them'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def rx_log(self, level, info):
+        ''' logs the receive queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def rx_clear(self):
+        ''' clear receive queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def rx_len(self):
+        ''' get numner of bytes in the receive queue'''
+        pass  # pragma: no cover
+
+    @abstractmethod
+    def rx_set_cb(self, callback):
+        pass  # pragma: no cover
+
+    #
+    #  Protocol Callbacks
+    #
+    @abstractmethod
+    def prot_set_timeout_cb(self, callback):
+        pass  # pragma: no cover