CubePool split by color category

cube_pool.py

@@ -1,29 +1,47 @@
 # Loads disjoint pools from a cube CSV
 
 import csv
+import itertools
+import random
 from collections import defaultdict
 from typing import Dict, List, Set
 
 import cubecobra_csv
 
 
+class CubePool:
+    def __init__(self):
+        self._categories = defaultdict(list)
+
+    def add_card(self, card_name: str, color_category: str):
+        assert color_category in 'wubrgchml', f'{card_name}: {color_category}'
+        self._categories[color_category].append(card_name)
+
+    def wide_sample(self, n: int):
+        wide_iterator = list(itertools.chain.from_iterable(self._categories.values()))
+        return random.sample(wide_iterator, n)
+
+
 def load_pools(csv_path: str, pool_tags: Set[str]) -> Dict[str, List[str]]:
-    pools = defaultdict(list)
+    pools = defaultdict(CubePool)
     with open(csv_path) as f:
         reader = csv.reader(f)
         header_line = next(reader)
         cubecobra_csv.assert_header(header_line)
         for line in reader:
-            card = line[cubecobra_csv.COLUMNS['Name']]
-            tags = set(line[cubecobra_csv.COLUMNS['Tags']].split(', '))
+            card = cubecobra_csv.get_name(line)
+            tags = cubecobra_csv.get_tags(line)
             # print(f'{card} {tags}')
             pool_tags_for_card = pool_tags.intersection(tags)
             if len(pool_tags_for_card) == 0:
                 print(f'{card} does not have any of the tags: {pool_tags}')
-            elif len(pool_tags_for_card) == 1:
-                (pool_tag,) = pool_tags_for_card
-                pools[pool_tag].append(card)
-            else:
+            elif len(pool_tags_for_card) > 1:
                 print(f'{card} should only be tagged as one in {pool_tags} '
                       'but is tagged as {pool_tags_for_card}')
+            else:
+                (pool_tag,) = pool_tags_for_card
+                color_category = cubecobra_csv.get_color_category(line)
+                # print(f'{card} {color_category}')
+                pools[pool_tag].add_card(card, color_category)
     return pools
+