Purchase API Refactoring: Mounts [Hourglass] (#10482)

* AbstractGemItemOperation - BuyQuestWithGemOperation

* fix purchase

website/common/script/ops/buy/abstractBuyOperation.js

@@ -194,3 +194,28 @@ export class AbstractGemItemOperation extends AbstractBuyOperation {
     };
   }
 }
+
+export class AbstractHourglassItemOperation extends AbstractBuyOperation {
+  constructor (user, req, analytics) {
+    super(user, req, analytics);
+  }
+
+  canUserPurchase (user, item) {
+    this.item = item;
+
+    if (user.purchased.plan.consecutive.trinkets <= 0) {
+      throw new NotAuthorized(this.i18n('notEnoughHourglasses'));
+    }
+  }
+
+  subtractCurrency (user) {
+    user.purchased.plan.consecutive.trinkets--;
+  }
+
+  analyticsData () {
+    return {
+      itemKey: this.item.key,
+      acquireMethod: 'Hourglass',
+    };
+  }
+}

website/common/script/ops/buy/buy.js

@@ -13,6 +13,7 @@ import hourglassPurchase from './hourglassPurchase';
 import errorMessage from '../../libs/errorMessage';
 import {BuyGemOperation} from './buyGem';
 import {BuyQuestWithGemOperation} from './buyQuestGem';
+import {BuyHourglassMountOperation} from './buyMount';
 
 // @TODO: remove the req option style. Dependency on express structure is an anti-pattern
 // We should either have more params or a set structure validated by a Type checker
@@ -72,8 +73,13 @@ module.exports = function buy (user, req = {}, analytics, options = {quantity: 1
     case 'bundles':
       buyRes = purchaseOp(user, req, analytics);
       break;
+    case 'mounts': {
+      const buyOp = new BuyHourglassMountOperation(user, req, analytics);
+
+      buyRes = buyOp.purchase();
+      break;
+    }
     case 'pets':
-    case 'mounts':
       buyRes = hourglassPurchase(user, req, analytics);
       break;
     case 'quest': {

website/common/script/ops/buy/buyMount.js

@@ -0,0 +1,59 @@
+import content from '../../content/index';
+import {
+  BadRequest,
+  NotAuthorized,
+} from '../../libs/errors';
+
+import {AbstractHourglassItemOperation} from './abstractBuyOperation';
+import get from 'lodash/get';
+import includes from 'lodash/includes';
+import keys from 'lodash/keys';
+
+export class BuyHourglassMountOperation extends AbstractHourglassItemOperation {
+  constructor (user, req, analytics) {
+    super(user, req, analytics);
+  }
+
+  multiplePurchaseAllowed () {
+    return false;
+  }
+
+  extractAndValidateParams (user, req) {
+    let key = this.key = get(req, 'params.key');
+    if (!key) throw new BadRequest(this.i18n('missingKeyParam'));
+
+
+    if (!includes(keys(content.timeTravelStable.mounts), key)) {
+      throw new NotAuthorized(this.i18n('notAllowedHourglass'));
+    }
+
+    if (user.items.mounts[key]) {
+      throw new NotAuthorized(this.i18n('mountsAlreadyOwned'));
+    }
+
+    this.canUserPurchase(user, {
+      key,
+    });
+  }
+
+  executeChanges (user) {
+    user.items.mounts[this.key] = true;
+
+    if (user.markModified) user.markModified('items.mounts');
+
+    this.subtractCurrency(user);
+
+    let message = this.i18n('hourglassPurchase');
+
+    return [
+      { items: user.items, purchasedPlanConsecutive: user.purchased.plan.consecutive },
+      message,
+    ];
+  }
+
+  analyticsData () {
+    let data = super.analyticsData();
+    data.itemType = 'mounts';
+    return data;
+  }
+}