From a16612b64b45ff4faf51c51e42320f799eaf8e05 Mon Sep 17 00:00:00 2001
From: brodriguez8774 <brodriguez8774@gmail.com>
Date: Thu, 26 Sep 2019 19:39:07 -0400
Subject: [PATCH] Implement a few interface functions

---
 resources/interface.py | 20 ++++++++++++++++++++
 resources/knapsack.py  |  4 ++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/resources/interface.py b/resources/interface.py
index e4e96fb..53f8178 100644
--- a/resources/interface.py
+++ b/resources/interface.py
@@ -123,11 +123,28 @@ class UserInterface():
         """
         Sets "Max Weight" value for program.
         """
+        stay_in_function = True
+
+        while stay_in_function:
+            print('Enter a positive integer for "Max Weight":')
+
+            # Get user's input.
+            user_input = input()
+            print('')
+
+            try:
+                user_input = int(user_input.strip())
+                self._knapsack_algorithm.set_max_weight(user_input)
+                stay_in_function=False
+                print('"Max Weight" set to {0}'.format(user_input))
+            except ValueError:
+                print('Input value was not a positive integer.')
 
     def clear_max_weight(self):
         """
         Resets "Max Weight" value for program to 0.
         """
+        self._knapsack_algorithm.clear_max_weight()
 
     def set_item_set_by_json(self):
         """
@@ -143,6 +160,7 @@ class UserInterface():
         """
         Removes all items from item set.
         """
+        self._knapsack_algorithm.clear_item_set()
 
     #endregion Program Values Menu
 
@@ -150,6 +168,8 @@ class UserInterface():
         """
         Displays program values for user.
         """
+        self._knapsack_algorithm.display_max_weight()
+        self._knapsack_algorithm.display_item_set()
 
     def solve_knapsack_problem(self):
         """
diff --git a/resources/knapsack.py b/resources/knapsack.py
index 857132c..e1b694d 100644
--- a/resources/knapsack.py
+++ b/resources/knapsack.py
@@ -88,13 +88,13 @@ class FractionalKnapsackAlgorithm():
         """
         Prints current item set with logging.
         """
-        logger.info('Current Item Set: {0}'.format(self._item_set_))
+        print('Current Item Set: {0}'.format(self._item_set_))
 
     def display_max_weight(self):
         """
         Prints current max weight with logging.
         """
-        logger.info('Current Max Weight: {0}'.format(self._max_weight_))
+        print('Current Max Weight: {0}'.format(self._max_weight_))
 
     def calculate_fractional_knapsack(self):
         """
-- 
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