Add gui/presenters/interpret_key_results.py

Improved Clarity on Key Check Messages for GUI

gui/presenters/interpret_key_results.py

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+def interpret_key_results(result: dict) -> str:
+    if not isinstance(result, dict):
+        return "There was an error with the format of the reply from the operation."
+
+    # unpack results:
+    valid = result.get('valid', False)
+    comparison = result.get('comparison', 'error')
+    error_msg = result.get('message', None)
+
+    # errors:
+    if error_msg:
+        if error_msg == "api_connection_issue":
+            return "There was a connection error with connecting to the API."
+        elif error_msg == "invalid_key":
+            return "Your original public key is in an invalid format to begin with."
+        else:
+            return "Unknown Error."
+
+    # comparison:
+    if comparison == "same":
+        first_sentance = "The key you had locally matched what the server had also."
+    elif comparison == "different":
+        first_sentance = "Your local key was different than the server's key."
+    else:
+        first_sentance = "There was an error with the comparison."
+
+    # validity:
+    if valid:
+        second_sentance = "The signature now matches with the new key."
+    else:
+        second_sentance = "But the signature still does not match, even with the new key.  If you prepare tickets anyway, they might not verify when used."
+
+    # final return
+    final_msg = first_sentance + " " + second_sentance
+    return final_msg