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import {
setCartCookie,
getCartCookie,
deleteCartCookie,
getAnonymousSessionId } from './cart-cookie';
import { logger } from '@/lib/logging';
export type CartStorageType = 'cookie' | 'database';
export interface CartStorageOptions {
type: CartStorageType;
userId?: number;
deviceId?: string;
}
/**
* Abstraction layer for cart persistence
* Handles both cookie-based (anonymous) and database-based (authenticated) storage
*/
export class CartStorage {
private type: CartStorageType;
private userId?: number;
private deviceId?: string;
constructor(options: CartStorageOptions) {
this.type = options.type;
this.userId = options.userId;
this.deviceId = options.deviceId;
}
/**
* Save cart items to storage
*/
async save(items: CartItem[]): Promise<boolean> {
if (this.type === 'cookie') {
return this.saveToCookie(items);
} else {
return this.saveToDatabase(items);
}
}
/**
* Load cart items from storage
*/
async load(): Promise<CartItem[]> {
if (this.type === 'cookie') {
return this.loadFromCookie();
} else {
return this.loadFromDatabase();
}
}
/**
* Clear cart from storage
*/
async clear(): Promise<void> {
if (this.type === 'cookie') {
deleteCartCookie();
} else {
await this.clearDatabase();
}
}
/**
* Get session identifier
*/
getSessionId(): string {
if (this.type === 'cookie') {
return getAnonymousSessionId();
} else {
return `user_${this.userId}_${this.deviceId || 'default'}`;
}
}
// Private methods
private saveToCookie(items: CartItem[]): boolean {
return setCartCookie(items);
}
private loadFromCookie(): CartItem[] {
return getCartCookie() || [];
}
// eslint-disable-next-line @typescript-eslint/no-unused-vars
private async saveToDatabase(_items: CartItem[]): Promise<boolean> {
// This will be implemented when integrating with Redux async thunks
// For now, we'll use the API endpoints
logger.warn('Database save not yet implemented - use Redux thunks', { category: 'CART' });
return false;
}
private async loadFromDatabase(): Promise<CartItem[]> {
// This will be implemented when integrating with Redux async thunks
// For now, we'll use the API endpoints
logger.warn('Database load not yet implemented - use Redux thunks', { category: 'CART' });
return [];
}
private async clearDatabase(): Promise<void> {
// This will be implemented when integrating with Redux async thunks
logger.warn('Database clear not yet implemented - use Redux thunks', { category: 'CART' });
}
/**
* Static factory method to create appropriate storage instance
*/
static create(isAuthenticated: boolean, userId?: number, deviceId?: string): CartStorage {
if (isAuthenticated && userId) {
return new CartStorage({
type: 'database',
userId,
deviceId});
} else {
return new CartStorage({
type: 'cookie'});
}
}
/**
* Check if storage is available
*/
static isStorageAvailable(): boolean {
if (typeof window === 'undefined') return false;
try {
// Test cookie availability
const testKey = '__storage_test__';
document.cookie = `${testKey}=1; path=/; max-age=0`;
const cookieEnabled = document.cookie.includes(testKey);
document.cookie = `${testKey}=; path=/; max-age=-1`;
return cookieEnabled;
} catch {
return false;
}
}
}
/**
* Helper function to determine current storage type
*/
export function getCurrentStorageType(isAuthenticated: boolean): CartStorageType {
return isAuthenticated ? 'database' : 'cookie';
}
/**
* Helper function to migrate from cookie to database
* Returns the items from cookie that need to be merged
*/
export function getCartItemsForMigration(): CartItem[] | null {
return getCartCookie();
}
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