[CLB] Implemented Scaled Nurturer

Mage/src/main/java/mage/abilities/common/delayed/ManaSpentDelayedTriggeredAbility.java

@@ -0,0 +1,84 @@
+package mage.abilities.common.delayed;
+
+import mage.abilities.Ability;
+import mage.abilities.DelayedTriggeredAbility;
+import mage.abilities.effects.Effect;
+import mage.constants.Duration;
+import mage.filter.FilterSpell;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.players.ManaPoolItem;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public class ManaSpentDelayedTriggeredAbility extends DelayedTriggeredAbility {
+
+    private final FilterSpell filter;
+
+    public ManaSpentDelayedTriggeredAbility(Effect effect, FilterSpell filter) {
+        super(effect, Duration.Custom, true, false);
+        this.filter = filter;
+    }
+
+    private ManaSpentDelayedTriggeredAbility(final ManaSpentDelayedTriggeredAbility ability) {
+        super(ability);
+        this.filter = ability.filter;
+    }
+
+    @Override
+    public ManaSpentDelayedTriggeredAbility copy() {
+        return new ManaSpentDelayedTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.MANA_PAID;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        if (!getSourceId().equals(event.getSourceId())) {
+            return false;
+        }
+        Permanent sourcePermanent = getSourcePermanentOrLKI(game);
+        if (sourcePermanent == null
+                || sourcePermanent
+                .getAbilities(game)
+                .stream()
+                .map(Ability::getOriginalId)
+                .map(UUID::toString)
+                .noneMatch(event.getData()::equals)) {
+            return false;
+        }
+        Spell spell = game.getStack().getSpell(event.getTargetId());
+        return spell != null && filter.match(spell, spell.getControllerId(), this, game);
+    }
+
+    @Override
+    public boolean isInactive(Game game) {
+        if (super.isInactive(game)) {
+            return true;
+        }
+        // must remove effect on empty mana pool to fix accumulate bug
+        // if no mana in pool then it can be discarded
+        Player player = game.getPlayer(this.getControllerId());
+        return player == null
+                || player
+                .getManaPool()
+                .getManaItems()
+                .stream()
+                .map(ManaPoolItem::getSourceId)
+                .noneMatch(getSourceId()::equals);
+    }
+
+    @Override
+    public String getTriggerPhrase() {
+        return "When you spend this mana to cast " + filter.getMessage() + ", ";
+    }
+}