feat(inputs): ✨ Add Set variable step

packages/bot-engine/src/contexts/TypebotContext.tsx

@@ -1,8 +1,9 @@
 import { PublicTypebot } from 'models'
-import React, { createContext, ReactNode, useContext } from 'react'
+import React, { createContext, ReactNode, useContext, useState } from 'react'
 
 const typebotContext = createContext<{
   typebot: PublicTypebot
+  updateVariableValue: (variableId: string, value: string) => void
   //@ts-ignore
 }>({})
 
@@ -13,10 +14,25 @@ export const TypebotContext = ({
   children: ReactNode
   typebot: PublicTypebot
 }) => {
+  const [localTypebot, setLocalTypebot] = useState<PublicTypebot>(typebot)
+
+  const updateVariableValue = (variableId: string, value: string) => {
+    setLocalTypebot((typebot) => ({
+      ...typebot,
+      variables: {
+        ...typebot.variables,
+        byId: {
+          ...typebot.variables.byId,
+          [variableId]: { ...typebot.variables.byId[variableId], value },
+        },
+      },
+    }))
+  }
   return (
     <typebotContext.Provider
       value={{
-        typebot,
+        typebot: localTypebot,
+        updateVariableValue,
       }}
     >
       {children}