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type InitialState = {
items: WishListItem[];
isLoaded: boolean;
loading: boolean;
error: string | null;
};
export type WishListItem = {
id: number;
title: string;
price: number;
discountedPrice: number;
quantity: number;
status?: string;
imgs?: {
thumbnails: string[];
previews: string[];
};
};
const initialState: InitialState = {
items: [],
isLoaded: false,
loading: false,
error: null};
// Async thunk to fetch wishlist from API
export const fetchWishlist = createAsyncThunk(
"wishlist/fetchWishlist",
async (_, { rejectWithValue }) => {
try {
const response = await fetch("/api/wishlist");
if (response.status === 401) {
// User not authenticated - return empty array, not an error
return [];
}
if (!response.ok) {
throw new Error("Failed to fetch wishlist");
}
const result = await response.json();
// Handle API response format: { success: true, data: [...] }
const data = result?.data ?? result;
// Ensure data is an array
if (!Array.isArray(data)) {
return [];
}
// Transform API response to match WishListItem type
return data.map((item: {
id: number;
title: string;
price: number;
discountedPrice: number;
imgs?: { thumbnails: string[]; previews: string[] };
}) => ({
id: item.id,
title: item.title,
price: item.price,
discountedPrice: item.discountedPrice,
quantity: 1,
status: "in_stock",
imgs: item.imgs}));
} catch (error) {
return rejectWithValue(error instanceof Error ? error.message : "Failed to fetch wishlist");
}
}
);
// Async thunk to add item to wishlist
export const addToWishlistAsync = createAsyncThunk(
"wishlist/addToWishlist",
async (productId: number, { rejectWithValue }) => {
try {
const response = await fetch("/api/wishlist", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ productId })});
if (response.status === 401) {
return rejectWithValue("LOGIN_REQUIRED");
}
if (!response.ok) {
const data = await response.json();
throw new Error(data.error || "Failed to add to wishlist");
}
return productId;
} catch (error) {
return rejectWithValue(error instanceof Error ? error.message : "Failed to add to wishlist");
}
}
);
// Async thunk to remove item from wishlist
export const removeFromWishlistAsync = createAsyncThunk(
"wishlist/removeFromWishlist",
async (productId: number, { rejectWithValue }) => {
try {
const response = await fetch(`/api/wishlist/${productId}`, {
method: "DELETE"});
if (!response.ok) {
throw new Error("Failed to remove from wishlist");
}
return productId;
} catch (error) {
return rejectWithValue(error instanceof Error ? error.message : "Failed to remove from wishlist");
}
}
);
// Async thunk to clear all wishlist items
export const clearWishlistAsync = createAsyncThunk(
"wishlist/clearWishlist",
async (_, { rejectWithValue }) => {
try {
const response = await fetch("/api/wishlist", {
method: "DELETE"});
if (!response.ok) {
throw new Error("Failed to clear wishlist");
}
return true;
} catch (error) {
return rejectWithValue(error instanceof Error ? error.message : "Failed to clear wishlist");
}
}
);
export const wishlist = createSlice({
name: "wishlist",
initialState,
reducers: {
clearWishlistError: (state) => {
state.error = null;
},
// Optimistically add item to local state (used before API call completes)
addItemToWishlistOptimistic: (state, action: PayloadAction<WishListItem>) => {
// Ensure items is an array
if (!Array.isArray(state.items)) {
state.items = [];
}
const existingItem = state.items.find((item) => item.id === action.payload.id);
if (!existingItem) {
state.items.push(action.payload);
}
},
// Remove item from local state (used for optimistic updates)
removeItemFromWishlistOptimistic: (state, action: PayloadAction<number>) => {
// Ensure items is an array
if (!Array.isArray(state.items)) {
state.items = [];
return;
}
state.items = state.items.filter((item) => item.id !== action.payload);
}},
extraReducers: (builder) => {
// Fetch wishlist
builder.addCase(fetchWishlist.pending, (state) => {
state.loading = true;
state.error = null;
});
builder.addCase(fetchWishlist.fulfilled, (state, action) => {
state.loading = false;
state.items = Array.isArray(action.payload) ? action.payload : [];
state.isLoaded = true;
});
builder.addCase(fetchWishlist.rejected, (state, action) => {
state.loading = false;
state.error = action.payload as string;
state.isLoaded = true;
});
// Add to wishlist
builder.addCase(addToWishlistAsync.pending, (state) => {
state.error = null;
});
builder.addCase(addToWishlistAsync.fulfilled, () => {
// Item already added optimistically
});
builder.addCase(addToWishlistAsync.rejected, (state, action) => {
state.error = action.payload as string;
// If failed, we should remove the optimistically added item
// This is handled in the component
});
// Remove from wishlist
builder.addCase(removeFromWishlistAsync.fulfilled, (state, action) => {
state.items = state.items.filter((item) => item.id !== action.payload);
});
builder.addCase(removeFromWishlistAsync.rejected, (state, action) => {
state.error = action.payload as string;
});
// Clear wishlist
builder.addCase(clearWishlistAsync.fulfilled, (state) => {
state.items = [];
});
builder.addCase(clearWishlistAsync.rejected, (state, action) => {
state.error = action.payload as string;
});
}});
export const {
clearWishlistError,
addItemToWishlistOptimistic,
removeItemFromWishlistOptimistic} = wishlist.actions;
// Legacy exports for backward compatibility (deprecated - use async versions)
export const addItemToWishlist = addItemToWishlistOptimistic;
export const removeItemFromWishlist = removeItemFromWishlistOptimistic;
export default wishlist.reducer;
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