🐛 (transcript) Fix shift answers is not immutable

packages/bot-engine/blocks/logic/setVariable/executeSetVariable.ts

@@ -27,16 +27,19 @@ import { stringifyError } from '@typebot.io/lib/stringifyError'
 
 export const executeSetVariable = async (
   state: SessionState,
-  block: SetVariableBlock
+  block: SetVariableBlock,
+  setVariableHistory: SetVariableHistoryItem[]
 ): Promise<ExecuteLogicResponse> => {
   const { variables } = state.typebotsQueue[0].typebot
   if (!block.options?.variableId)
     return {
       outgoingEdgeId: block.outgoingEdgeId,
     }
+
   const expressionToEvaluate = await getExpressionToEvaluate(state)(
     block.options,
-    block.id
+    block.id,
+    setVariableHistory
   )
   const isCustomValue = !block.options.type || block.options.type === 'Custom'
   const isCode =
@@ -139,7 +142,8 @@ const getExpressionToEvaluate =
   (state: SessionState) =>
   async (
     options: SetVariableBlock['options'],
-    blockId: string
+    blockId: string,
+    setVariableHistory: SetVariableHistoryItem[]
   ): Promise<string | null> => {
     switch (options?.type) {
       case 'Contact name':
@@ -227,6 +231,8 @@ const getExpressionToEvaluate =
           typebot: typebotWithEmptyVariables,
           stopAtBlockId: blockId,
           ...props,
+          setVariableHistory:
+            props.setVariableHistory.concat(setVariableHistory),
         })
         return (
           'return `' +

packages/bot-engine/executeGroup.ts

@@ -6,7 +6,7 @@ import {
   SessionState,
   SetVariableHistoryItem,
 } from '@typebot.io/schemas'
-import { isEmpty, isNotEmpty } from '@typebot.io/lib'
+import { isNotEmpty } from '@typebot.io/lib'
 import {
   isBubbleBlock,
   isInputBlock,
@@ -139,7 +139,7 @@ export const executeGroup = async (
       }
     const executionResponse = (
       isLogicBlock(block)
-        ? await executeLogic(newSessionState)(block)
+        ? await executeLogic(newSessionState)(block, setVariableHistory)
         : isIntegrationBlock(block)
         ? await executeIntegration(newSessionState)(block)
         : null

packages/bot-engine/executeLogic.ts

@@ -1,5 +1,9 @@
 import { executeWait } from './blocks/logic/wait/executeWait'
-import { LogicBlock, SessionState } from '@typebot.io/schemas'
+import {
+  LogicBlock,
+  SessionState,
+  SetVariableHistoryItem,
+} from '@typebot.io/schemas'
 import { ExecuteLogicResponse } from './types'
 import { executeScript } from './blocks/logic/script/executeScript'
 import { executeJumpBlock } from './blocks/logic/jump/executeJumpBlock'
@@ -12,10 +16,13 @@ import { LogicBlockType } from '@typebot.io/schemas/features/blocks/logic/consta
 
 export const executeLogic =
   (state: SessionState) =>
-  async (block: LogicBlock): Promise<ExecuteLogicResponse> => {
+  async (
+    block: LogicBlock,
+    setVariableHistory: SetVariableHistoryItem[]
+  ): Promise<ExecuteLogicResponse> => {
     switch (block.type) {
       case LogicBlockType.SET_VARIABLE:
-        return executeSetVariable(state, block)
+        return executeSetVariable(state, block, setVariableHistory)
       case LogicBlockType.CONDITION:
         return executeConditionBlock(state, block)
       case LogicBlockType.REDIRECT:

packages/logic/computeResultTranscript.ts

@@ -73,8 +73,8 @@ export const computeResultTranscript = ({
     typebotsQueue: [{ typebot }],
     nextGroup: firstGroup,
     currentTranscript: [],
-    answers,
+    answers: [...answers],
-    setVariableHistory,
+    setVariableHistory: [...setVariableHistory],
     visitedEdges,
     stopAtBlockId,
   })