Add 2 methods: fetch all threads, fetch all users involved in threads

fbchat/client.py

@@ -472,7 +472,51 @@ def resetDefaultThread(self):
     """
     FETCH METHODS
     """
+
+    def fetchThreads(self, thread_location):
+        """
+        Get all threads in thread_location.
 
+        :param thread_location: models.ThreadLocation: INBOX, PENDING, ARCHIVED or OTHER
+        :return: :class:`models.Thread` objects
+        :rtype: list
+        :raises: FBchatException if request failed
+        """
+        Threads = []
+        Threads += self.fetchThreadList(thread_location=thread_location)
+        if len(Threads) == 0:
+            return []
+        while True:
+            lastThreadTimestamp = Threads[-1].last_message_timestamp
+            candidates = self.fetchThreadList(before=lastThreadTimestamp, thread_location=thread_location)  # return at max 20 threads before lastThreadTimestamp (included)
+            if len(candidates) > 1:
+                Threads += candidates[1:]
+            else:
+                break
+        return Threads  # from newest to oldest
+
+    def fetchAllUsersFromThreads(self, threads):
+        """
+        Get all users involved in threads.
+
+        :param threads: models.Thread: List of threads to check for users
+        :return: :class:`models.User` objects
+        :rtype: list
+        :raises: FBchatException if request failed
+        """
+        Users = []
+        for thread in threads:
+            if thread.type == ThreadType.USER:
+                if thread.uid not in [user.uid for user in Users]:
+                    Users.append(thread)
+            elif thread.type == ThreadType.GROUP:
+                for userID in thread.participants:
+                    if userID not in [user.uid for user in Users]:
+                        Users.append(self.fetchUserInfo(userID)[userID])
+            else:
+                pass
+        return Users
+
     def fetchAllUsers(self):
         """
         Gets all users the client is currently chatting with