move inventory verbs to inventory map from character

src/ttfrog/db/schema/character.py

@@ -10,7 +10,6 @@ from ttfrog.db.base import BaseObject, SlugMixin
 from ttfrog.db.schema.classes import CharacterClass, ClassFeature
 from ttfrog.db.schema.constants import DamageType, Defenses
 from ttfrog.db.schema.inventory import Inventory, InventoryMap, InventoryType
-from ttfrog.db.schema.item import ItemType
 from ttfrog.db.schema.modifiers import Modifier, ModifierMixin, Stat
 from ttfrog.db.schema.skill import Skill
 
@@ -422,47 +421,6 @@ class Character(BaseObject, SlugMixin, ModifierMixin):
         mapping.attuned = False
         return True
 
-    def equip(self, mapping):
-        if mapping.equipped:
-            return False
-        mapping.equipped = True
-        return True
-
-    def unequip(self, mapping):
-        if not mapping.equipped:
-            return False
-        mapping.equipped = False
-        return True
-
-    def prepare(self, mapping):
-        if mapping.item.item_type != ItemType.SPELL:
-            return False
-        if mapping.item.level > 0 and not self.spell_slots_by_level[mapping.item.level]:
-            return False
-        return self.equip(mapping)
-
-    def unprepare(self, mapping):
-        if mapping.item.item_type != ItemType.SPELL:
-            return False
-        return self.unequip(mapping)
-
-    def cast(self, mapping: InventoryMap, level=0):
-        if not mapping.prepared:
-            return False
-        if not level:
-            level = mapping.item.level
-
-        # cantrips
-        if level == 0:
-            return True
-
-        # expend the spell slot
-        avail = self.spell_slots_available[level]
-        if not avail:
-            return False
-        avail[0].expended = True
-        return True
-
     def level_in_class(self, charclass):
         mapping = [mapping for mapping in self.class_map if mapping.character_class_id == charclass.id]
         if not mapping:

src/ttfrog/db/schema/inventory.py

@@ -41,6 +41,8 @@ class Inventory(BaseObject):
         uselist=True, cascade="all,delete,delete-orphan", lazy="immediate", default_factory=lambda: []
     )
 
+    character = relationship("Character", init=False, viewonly=True, lazy="immediate")
+
     def get(self, item):
         return self.get_all(item)[0]
 
@@ -101,6 +103,30 @@ class InventoryMap(BaseObject):
         if self.item.item_type == ItemType.SPELL:
             return self.equipped or self.always_prepared
 
+    def equip(self):
+        if self.equipped:
+            return False
+        self.equipped = True
+        return True
+
+    def unequip(self):
+        if not self.equipped:
+            return False
+        self.equipped = False
+        return True
+
+    def prepare(self):
+        if self.item.item_type != ItemType.SPELL:
+            return False
+        if self.item.level > 0 and not self.inventory.character.spell_slots_by_level[self.item.level]:
+            return False
+        return self.equip()
+
+    def unprepare(self):
+        if self.item.item_type != ItemType.SPELL:
+            return False
+        return self.unequip()
+
     def use(self, item_property: ItemProperty, charges=None):
         if item_property.charge_cost is None:
             return True
@@ -126,6 +152,42 @@ class InventoryMap(BaseObject):
             return 0
         return self.count
 
+    def cast(self, level=0):
+        if self.item.item_type != ItemType.SPELL:
+            return False
+
+        if not self.prepared:
+            return False
+        if not level:
+            level = self.item.level
+
+        # cantrips
+        if level == 0:
+            return True
+
+        # expend the spell slot
+        avail = self.inventory.character.spell_slots_available[level]
+        if not avail:
+            return False
+        avail[0].expended = True
+        return True
+
+    def attune(self):
+        if self.attuned:
+            return False
+        if not self.item.requires_attunement:
+            return False
+        if len(self.inventory.character.attuned_items) >= 3:
+            return False
+        self.attuned = True
+        return True
+
+    def unattune(self):
+        if not self.attuned:
+            return False
+        self.attuned = False
+        return True
+
 
 class Charge(BaseObject):
     __tablename__ = "charge"