refactors project structure

pisa/appointment.py

@@ -0,0 +1,25 @@
+from pisa.encrypted_blob import EncryptedBlob
+
+
+# Basic appointment structure
+class Appointment:
+    def __init__(self, locator, start_time, end_time, dispute_delta, encrypted_blob, cipher, hash_function):
+        self.locator = locator
+        self.start_time = start_time    # ToDo: #4-standardize-appointment-fields
+        self.end_time = end_time    # ToDo: #4-standardize-appointment-fields
+        self.dispute_delta = dispute_delta
+        self.encrypted_blob = EncryptedBlob(encrypted_blob)
+        self.cipher = cipher
+        self.hash_function = hash_function
+
+    def to_json(self):
+        appointment = {"locator": self.locator, "start_time": self.start_time, "end_time": self.end_time,
+                       "dispute_delta": self.dispute_delta, "encrypted_blob": self.encrypted_blob.data,
+                       "cipher": self.cipher, "hash_function": self.hash_function}
+
+        return appointment
+
+        # ToDO: #3-improve-appointment-strcuture
+
+
+