Fix: Resolve toast notification issue

The toast notifications were not displaying. This commit addresses the problem.

src/components/ui/toaster.tsx

@@ -1,3 +1,4 @@
+
 import { useToast } from "@/hooks/use-toast"
 import {
   Toast,

src/components/ui/use-toast.ts

@@ -1,5 +1,7 @@
 
-// useToast.wrapper.ts에서 수정된 toast 함수를 사용하도록 리디렉션
-import { useToast, toast } from "@/hooks/useToast.wrapper";
+// Shadcn UI의 최신 버전에서는 use-toast가 hooks 폴더로 이동했습니다.
+// 이 파일은 기존 import 경로가 작동하도록 리디렉션합니다.
+import { useToast, toast } from "@/hooks/use-toast";
 
 export { useToast, toast };
+export type { ToasterToast } from "@/hooks/use-toast";

src/hooks/use-toast.ts

@@ -1,88 +1,190 @@
 
 import * as React from "react"
-import { ToastProps } from "@/components/ui/toast"
 
-// useToastStore 대신 toast를 임포트합니다.
-import { toast as originalToast } from "@/components/ui/use-toast"
-import { ToastActionElement } from "@/components/ui/toast"
+const TOAST_LIMIT = 20
+export const TOAST_REMOVE_DELAY = 1000000
 
-// 기본 지속 시간 늘리기 (기존 3000ms → 3500ms)
-export const DEFAULT_TOAST_DURATION = 3500;
+export type ToasterToast = {
+  id: string
+  title?: React.ReactNode
+  description?: React.ReactNode
+  action?: React.ReactNode
+  variant?: "default" | "destructive"
+  duration?: number
+}
 
-export const TOAST_REMOVE_DELAY = 1000000;
-
-export type ToasterToast = ToastProps & {
-  id: string;
-  title?: React.ReactNode;
-  description?: React.ReactNode;
-  action?: React.ReactNode;
-  duration?: number;  // 지속 시간 추가
-  variant?: "default" | "destructive"; // variant 속성 추가
-};
-
-const actionTypes = ['default', 'cancel'] as const
-
-export type ToastActionType = typeof actionTypes[number]
+const actionTypes = {
+  ADD_TOAST: "ADD_TOAST",
+  UPDATE_TOAST: "UPDATE_TOAST",
+  DISMISS_TOAST: "DISMISS_TOAST",
+  REMOVE_TOAST: "REMOVE_TOAST",
+} as const
 
 let count = 0
 
 function genId() {
-  return String(count++)
+  count = (count + 1) % Number.MAX_SAFE_INTEGER
+  return count.toString()
 }
 
-export const useToast = () => {
-  const [toasts, setToasts] = React.useState<ToasterToast[]>([]);
+type ActionType = typeof actionTypes
 
-  // 토스트 추가 함수
-  const addToast = React.useCallback(
-    (props: Omit<ToasterToast, "id">) => {
-      // 토스트에 기본 지속 시간 추가
-      const toastWithDefaults = {
-        ...props,
-        duration: props.duration || DEFAULT_TOAST_DURATION,
-      };
+type Action =
+  | {
+      type: ActionType["ADD_TOAST"]
+      toast: ToasterToast
+    }
+  | {
+      type: ActionType["UPDATE_TOAST"]
+      toast: Partial<ToasterToast> & { id: string }
+    }
+  | {
+      type: ActionType["DISMISS_TOAST"]
+      toastId?: string
+    }
+  | {
+      type: ActionType["REMOVE_TOAST"]
+      toastId?: string
+    }
 
-      const id = genId()
+interface State {
+  toasts: ToasterToast[]
+}
 
-      setToasts((prev) => [...prev, { id, ...toastWithDefaults }])
-      return id
-    },
-    [toasts]
-  );
+const toastTimeouts = new Map<string, ReturnType<typeof setTimeout>>()
 
-  const updateToast = React.useCallback(
-    (id: string, props: Partial<ToasterToast>) => {
-      setToasts((prev) =>
-        prev.map((toast) => (toast.id === id ? { ...toast, ...props } : toast))
-      )
-    },
-    [toasts]
-  )
+const addToRemoveQueue = (toastId: string) => {
+  if (toastTimeouts.has(toastId)) {
+    return
+  }
 
-  const dismissToast = React.useCallback(
-    (id: string) => {
-      setToasts((prev) => prev.filter((toast) => toast.id !== id))
-    },
-    [toasts]
-  )
+  const timeout = setTimeout(() => {
+    toastTimeouts.delete(toastId)
+    dispatch({
+      type: actionTypes.REMOVE_TOAST,
+      toastId: toastId,
+    })
+  }, TOAST_REMOVE_DELAY)
+
+  toastTimeouts.set(toastId, timeout)
+}
+
+export const reducer = (state: State, action: Action): State => {
+  switch (action.type) {
+    case actionTypes.ADD_TOAST:
+      return {
+        ...state,
+        toasts: [action.toast, ...state.toasts].slice(0, TOAST_LIMIT),
+      }
+
+    case actionTypes.UPDATE_TOAST:
+      return {
+        ...state,
+        toasts: state.toasts.map((t) =>
+          t.id === action.toast.id ? { ...t, ...action.toast } : t
+        ),
+      }
+
+    case actionTypes.DISMISS_TOAST: {
+      const { toastId } = action
+
+      if (toastId) {
+        addToRemoveQueue(toastId)
+      } else {
+        state.toasts.forEach((toast) => {
+          addToRemoveQueue(toast.id)
+        })
+      }
 
       return {
-    toasts,
-    addToast,
-    updateToast,
-    dismissToast,
-    toast: (props: Omit<ToasterToast, "id">) => addToast(props),
-  };
-};
+        ...state,
+        toasts: state.toasts.map((t) =>
+          t.id === toastId || toastId === undefined
+            ? {
+                ...t,
+                open: false,
+              }
+            : t
+        ),
+      }
+    }
+    case actionTypes.REMOVE_TOAST:
+      if (action.toastId === undefined) {
+        return {
+          ...state,
+          toasts: [],
+        }
+      }
+      return {
+        ...state,
+        toasts: state.toasts.filter((t) => t.id !== action.toastId),
+      }
+    default:
+      return state
+  }
+}
 
-// 전역 토스트 함수에도 기본 지속 시간 적용
-export const toast = (props: Omit<ToasterToast, "id">) => {
-  // 기본 지속 시간을 적용
-  const toastWithDefaults = {
+const listeners: Array<(state: State) => void> = []
+
+let memoryState: State = { toasts: [] }
+
+function dispatch(action: Action) {
+  memoryState = reducer(memoryState, action)
+  listeners.forEach((listener) => {
+    listener(memoryState)
+  })
+}
+
+type Toast = Omit<ToasterToast, "id">
+
+function toast({ ...props }: Toast) {
+  const id = genId()
+
+  const update = (props: ToasterToast) =>
+    dispatch({
+      type: actionTypes.UPDATE_TOAST,
+      toast: { ...props, id },
+    })
+  const dismiss = () => dispatch({ type: actionTypes.DISMISS_TOAST, toastId: id })
+
+  dispatch({
+    type: actionTypes.ADD_TOAST,
+    toast: {
       ...props,
-    duration: props.duration || DEFAULT_TOAST_DURATION,
-  };
+      id,
+      open: true,
+      onOpenChange: (open) => {
+        if (!open) dismiss()
+      },
+      duration: props.duration || 5000, // 기본 지속 시간 설정
+    },
+  })
 
-  // 원래 toast 함수 호출
-  return originalToast(toastWithDefaults);
-};
+  return {
+    id,
+    dismiss,
+    update,
+  }
+}
+
+function useToast() {
+  const [state, setState] = React.useState<State>(memoryState)
+
+  React.useEffect(() => {
+    listeners.push(setState)
+    return () => {
+      const index = listeners.indexOf(setState)
+      if (index > -1) {
+        listeners.splice(index, 1)
+      }
+    }
+  }, [state])
+
+  return {
+    ...state,
+    toast,
+    dismiss: (toastId?: string) => dispatch({ type: actionTypes.DISMISS_TOAST, toastId }),
+  }
+}
+
+export { useToast, toast }