From 1b64321fda0bbf1f5a678671c1344eb2b87b5c74 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <timotej.lazar@araneo.org>
Date: Thu, 10 Sep 2015 22:29:24 +0200
Subject: Use Hint classes for hints from the last commit

Also move the language-specific hint method for Prolog to prolog.common.
---
 .../problems/family_relations/brother_2/common.py  | 25 ++++++++++++++--------
 prolog/problems/family_relations/brother_2/sl.py   | 12 ++++-------
 2 files changed, 20 insertions(+), 17 deletions(-)

(limited to 'prolog/problems/family_relations/brother_2')

diff --git a/prolog/problems/family_relations/brother_2/common.py b/prolog/problems/family_relations/brother_2/common.py
index 41512e6..f2bfa15 100644
--- a/prolog/problems/family_relations/brother_2/common.py
+++ b/prolog/problems/family_relations/brother_2/common.py
@@ -1,5 +1,11 @@
 # coding=utf-8
 
+import socket
+import prolog.engine
+import prolog.util
+from server.hints import Hint, HintSequence
+import server.problems
+
 id = 97
 group = 'family_relations'
 number = 4
@@ -14,10 +20,13 @@ brother(X, Y) :-
   X \== Y.
 '''
 
-import prolog.engine
-import prolog.util
-import server.problems
-import socket
+hint_defs = {
+    'general_hint': HintSequence('general_hint', 3),
+    'x_must_be_male': Hint('x_must_be_male'),
+    'common_parent_needed': Hint('common_parent_needed'),
+    'Y_can_be_of_any_gender': Hint('Y_can_be_of_any_gender'),
+    'x_y_must_be_different': Hint('x_y_must_be_different'),
+}
 
 def test(session, program):
     # TODO: change queries and answers (these are for sister/2)
@@ -49,9 +58,6 @@ def test(session, program):
 
     return n_correct, len(queries)
 
-def general_hint():
-    pass
-
 def hint(session, program):
     # tokens = prolog.util.tokenize(program)
 
@@ -79,8 +85,9 @@ def hint(session, program):
         # X and Y must be different
         ans = prolog.engine.ask_one(engine_id,
             'setof(X, (member(X, [william, alessandro, andrew]), brother(X, X)), L), length(L, N).')
-        if ans.get('N') == '3':
-            return [{'id': 'x_y_must_be_different'}]
+        # TODO this barfs if ans is 'false'
+        #if ans.get('N') == '3':
+        #    return [{'id': 'x_y_must_be_different'}]
 
     except socket.timeout as ex:
         pass
diff --git a/prolog/problems/family_relations/brother_2/sl.py b/prolog/problems/family_relations/brother_2/sl.py
index f9db389..ad1d6c2 100644
--- a/prolog/problems/family_relations/brother_2/sl.py
+++ b/prolog/problems/family_relations/brother_2/sl.py
@@ -13,22 +13,18 @@ description = '''\
 </pre>'''
 
 hint = {
-    'general_hint_1': '''\
+    'general_hint': ['''\
 <p><img src="Sister-1.png" /></p>
-''',
-
-    'general_hint_2': '''\
+''', '''\
 <p><img src="Sister-2.png" /></p>
-''',
-
-    'general_hint_3': '''\
+''', '''\
 <p><img src="Sister-2.png" /></p>
 <pre>
 parent(P, X)
 parent(P, Y)
 male(X)
 </pre>
-''',
+'''],
 
     'x_y_must_be_different': '''\
 <p>Si pomislil, da sta <code>X</code> in <code>Y</code> lahko ista oseba? Poskusi naslednjo poizvedbo:</p>
-- 
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