4 files changed, 142 insertions, 0 deletions
diff --git a/interfaces/__init__.py b/interfaces/__init__.py
new file mode 100755
index 0000000..e69de29
--- /dev/null
+++ b/interfaces/__init__.py
diff --git a/interfaces/desktopEvent.py b/interfaces/desktopEvent.py
new file mode 100755
index 0000000..e8a30a4
--- /dev/null
+++ b/interfaces/desktopEvent.py
@@ -0,0 +1,16 @@
+from typing import Optional
+from zope import interface
+from zope.interface import Attribute
+
+class IDesktop(interface.Interface):
+
+    queue = Attribute("""The queue to send the message""")
+    mapping = Attribute("""Correspondance between application and layer""")
+
+    def getForegroundWindowTitle(sel) -> Optional[str]:
+        """ Return the name of the selected window
+        """
+
+    def start(self) -> None:
+        """ Start listening the events
+        """
diff --git a/interfaces/endpoint.py b/interfaces/endpoint.py
new file mode 100755
index 0000000..5aa369b
--- /dev/null
+++ b/interfaces/endpoint.py
@@ -0,0 +1,112 @@
+from typing import Optional
+from zope import interface
+from zope.interface import Attribute
+
+
+class IEndpoint(interface.Interface):
+
+    queue = Attribute("""The queue to send the message""")
+    state = Attribute("""The connection status""")
+
+    def isConnected(self) ->  bool:
+        """ Return True if the endpoint is connected. This function and
+            [connect] are supposed to work together : the main loop application
+            will call reconnect after a while when isConnected return False.
+        """
+
+    def connect(self):
+        """ Connect or reconnect to the endpoint
+        """
+
+    def fetch(self):
+        """ Check the elements from the connection
+        """
+
+    def send(self, data: list[dict[str, str]]):
+        """ Send element to the connection
+        """
+
+class IConnection(interface.Interface):
+    """ Define a connected element (serial, network…)
+    """
+
+    def connect(self) -> None:
+        """ Connect """
+
+    def read(self) -> str:
+        """ Read from the connection and return the bytes.
+            Return None if there is nothing to read (non-blocking)
+            Raise an exception if disconnected """
+
+    def write(self, content:str) -> None:
+        """ Write into the connection.
+            Raise an exception if disconnected """
+
+from interfaces import desktopEvent
+from zope import component
+import json
+
+from interfaces.message import IMessage, Debug
+
+@component.adapter(IConnection)
+@interface.implementer(IEndpoint)
+class EndPoint(object):
+
+    STATE_DISCONNECTED = 0
+    STATE_CONNECTING = 1
+    STATE_CONNECTED = 2
+
+    def __init__(self, connection):
+        self.connection = connection
+        self.queue = None
+        self.state = self.STATE_DISCONNECTED
+
+    def isConnected(self) -> bool:
+        return self.state != self.STATE_DISCONNECTED
+
+    def connect(self):
+        try:
+            self.connection.connect()
+            self.state = self.STATE_CONNECTED
+            component.handle(Debug("Connected"))
+        except Exception as e:
+            print(e)
+            self.state = self.STATE_DISCONNECTED
+
+    def fetch(self):
+        """ Read from the peripherical and put them in the queue if any data
+            are available.
+        """
+        if self.state != self.STATE_CONNECTED:
+            return
+        try:
+            received = self.connection.read()
+        except Exception as e:
+            print(e)
+            self.state = self.STATE_DISCONNECTED
+            return
+        else:
+            if received is None or received == b'':
+                # If we do not have any entry from the macropad, just return
+                return
+
+        print("recv", received)
+        layout = str(received, "utf-8").strip()
+        desktop = component.queryUtility(desktopEvent.IDesktop)
+        if desktop is not None:
+            title = desktop.getForegroundWindowTitle()
+        else:
+            title = None
+        self.queue.put((layout, title))
+
+    def send(self, data: list[dict[str, str]]):
+        """ Send the data to the macropad
+        """
+        if self.state != self.STATE_CONNECTED:
+            return
+        try:
+            j = json.dumps( data )
+            self.connection.write(bytes(j, "utf-8"))
+        except Exception as e:
+            print(e)
+            self.state = self.STATE_DISCONNECTED
diff --git a/interfaces/message.py b/interfaces/message.py
new file mode 100755
index 0000000..23ce2ec
--- /dev/null
+++ b/interfaces/message.py
@@ -0,0 +1,14 @@
+from zope import interface
+from zope.interface import Attribute
+
+class IMessage(interface.Interface):
+    content = Attribute("""The text message to log""")
+
+class ISocketMessage(interface.Interface):
+    content = Attribute("""Content to send""")
+
+@interface.implementer(IMessage)
+class Debug(object):
+
+    def __init__(self, message):
+        self.content = message