feat: added new DEFAULT_QA_STORY_MODE feature flag (#2905)

Co-authored-by: Kim Gardner <kgardnr@gmail.com>

src/core/server/graph/resolvers/StorySettings.ts

@@ -1,6 +1,8 @@
 import * as story from "coral-server/models/story";
+import { hasFeatureFlag } from "coral-server/models/tenant";
 
 import {
+  GQLFEATURE_FLAG,
   GQLSTORY_MODE,
   GQLStorySettingsTypeResolver,
 } from "../schema/__generated__/types";
@@ -21,11 +23,17 @@ export const StorySettings: GQLStorySettingsTypeResolver<
       enabled: false,
     };
   },
-  mode: s => {
+  // FEATURE_FLAG:ENABLE_QA
+  mode: (s, input, ctx) => {
     if (s.mode) {
       return s.mode;
     }
 
+    // FEATURE_FLAG:DEFAULT_QA_STORY_MODE
+    if (hasFeatureFlag(ctx.tenant, GQLFEATURE_FLAG.DEFAULT_QA_STORY_MODE)) {
+      return GQLSTORY_MODE.QA;
+    }
+
     return GQLSTORY_MODE.COMMENTS;
   },
   experts: (s, input, ctx) => {

src/core/server/graph/schema/schema.graphql

@@ -353,6 +353,11 @@ enum FEATURE_FLAG {
   ENABLE_QA when enabled will turn off Q&A features client side.
   """
   ENABLE_QA
+
+  """
+  DEFAULT_QA_STORY_MODE will set the story mode to QA by default.
+  """
+  DEFAULT_QA_STORY_MODE
 }
 
 # The moderation mode of the site.