✨ Add AB test block

Closes #449

apps/viewer/src/features/blocks/logic/abTest/executeAbTest.ts

@@ -0,0 +1,16 @@
+import { AbTestBlock, SessionState } from '@typebot.io/schemas'
+import { ExecuteLogicResponse } from '@/features/chat/types'
+
+export const executeAbTest = (
+  _: SessionState,
+  block: AbTestBlock
+): ExecuteLogicResponse => {
+  const aEdgeId = block.items[0].outgoingEdgeId
+  const random = Math.random() * 100
+  if (random < block.options.aPercent && aEdgeId) {
+    return { outgoingEdgeId: aEdgeId }
+  }
+  const bEdgeId = block.items[1].outgoingEdgeId
+  if (bEdgeId) return { outgoingEdgeId: bEdgeId }
+  return { outgoingEdgeId: block.outgoingEdgeId }
+}

apps/viewer/src/features/chat/helpers/executeLogic.ts

@@ -7,6 +7,7 @@ import { executeRedirect } from '@/features/blocks/logic/redirect/executeRedirec
 import { executeCondition } from '@/features/blocks/logic/condition/executeCondition'
 import { executeSetVariable } from '@/features/blocks/logic/setVariable/executeSetVariable'
 import { executeTypebotLink } from '@/features/blocks/logic/typebotLink/executeTypebotLink'
+import { executeAbTest } from '@/features/blocks/logic/abTest/executeAbTest'
 
 export const executeLogic =
   (state: SessionState, lastBubbleBlockId?: string) =>
@@ -26,5 +27,7 @@ export const executeLogic =
         return executeWait(state, block, lastBubbleBlockId)
       case LogicBlockType.JUMP:
         return executeJumpBlock(state, block.options)
+      case LogicBlockType.AB_TEST:
+        return executeAbTest(state, block)
     }
   }