Fix: Antidotes to Avatar Transformation Items should be added to Rewards by API (#11353)

* Fix: moved debuffPotions from vue component

- Move logic of choosing proper debuf potion from vue component to website commons
- introduce new function to get debuffSpellItems

* Fix: move debuffPotions to server

* Refactoring: move setting of debuff potion to func

* Fix: sanity

* Refactoring & Tests:

- Create test case for get and set DebuffPotionItems functions
- Fix setDebuffPotionItems function to not create duplicated debuff items
- Make debuff potion type of items unpinnable
- Move list of debuffs to constant to reuse it in tests and functions

* Fix: typo in test describe

* Fix: translation of unpin

* Fix: setDebuffPotionItems on cron buffs reset

* Fix: use full path for debuff potions

test/common/libs/setDebuffPotionItems.test.js

@@ -0,0 +1,53 @@
+
+import {
+  generateUser,
+} from '../../helpers/common.helper';
+
+import setDebuffPotionItems from '../../../website/common/script/libs/setDebuffPotionItems';
+
+describe('setDebuffPotionItems', () => {
+  let user;
+
+  beforeEach(() => {
+    user = generateUser();
+  });
+
+  it('Should push the debuff item to pinned items of user', () => {
+    user.stats.buffs.spookySparkles = true;
+    const previousPinnedItemsLength = user.pinnedItems.length;
+
+    let result = setDebuffPotionItems(user);
+
+    expect(result.pinnedItems.length).to.be.greaterThan(previousPinnedItemsLength);
+  });
+
+  it('Shouldn\'t create duplicate of already added debuff potion', () => {
+    user.stats.buffs.spookySparkles = true;
+
+    const firstSetResult = [...setDebuffPotionItems(user).pinnedItems];
+    const secondSetResult = [...setDebuffPotionItems(user).pinnedItems];
+
+
+    expect(firstSetResult).to.be.deep.equal(secondSetResult);
+  });
+
+  it('Should remove all debuff items from pinnedItems of the user if user have no buffs', () => {
+    user.stats.buffs.seafoam = true;
+    user.stats.buffs.spookySparkles = true;
+    user.stats.buffs.snowball = true;
+    user.stats.buffs.shinySeed = true;
+
+    const firstSetResult = [...setDebuffPotionItems(user).pinnedItems];
+
+    expect(firstSetResult).to.have.lengthOf(4);
+
+    user.stats.buffs.seafoam = false;
+    user.stats.buffs.spookySparkles = false;
+    user.stats.buffs.snowball = false;
+    user.stats.buffs.shinySeed = false;
+
+    const secondSetResult = [...setDebuffPotionItems(user).pinnedItems];
+
+    expect(secondSetResult).to.have.lengthOf(0);
+  });
+});