import { DataTypes, IStorage, IdType } from "@etsoo/shared";
import { Currency } from "./Currency";
/**
 * Shopping cart owner
 * 购物篮所有人
 */
export type ShoppingCartOwner = DataTypes.IdNameItem & {
    culture?: string;
    currency?: Currency;
};
/**
 * Shopping cart data
 * 购物篮数据
 */
export type ShoppingCartData<T extends ShoppingCartItem> = {
    culture: string;
    currency: Currency;
    owner: ShoppingCartOwner;
    items: T[];
    promotions: ShoppingPromotion[];
    formData?: any;
    cache?: Record<string, unknown>;
};
/**
 * Shopping promotion
 * 购物促销
 */
export type ShoppingPromotion = {
    /**
     * Promotion id
     * 促销编号
     */
    id: number;
    /**
     * Promotion title
     * 促销标题
     */
    title: string;
    /**
     * Discount amount
     * 折扣金额
     */
    amount: number;
};
/**
 * Shopping cart base item
 * 购物篮基础项目
 */
export type ShoppingCartItemBase = {
    /**
     * Product id
     * 产品编号
     */
    id: IdType;
    /**
     * Product title, default is name
     * 产品标题，默认为name
     */
    title?: string;
    /**
     * Sale price
     * 销售价格
     */
    price: number;
    /**
     * Qty
     * 数量
     */
    qty: number;
    /**
     * Asset qty
     */
    assetQty?: number;
    /**
     * Product level promotions
     * 产品层次促销
     */
    promotions: ShoppingPromotion[];
};
/**
 * Shopping cart item
 * 购物篮项目
 */
export type ShoppingCartItem = ShoppingCartItemBase & {
    /**
     * Product name
     * 产品名称
     */
    name: string;
    /**
     * Current price for cache
     * 当前缓存价格
     */
    currentPrice?: number;
    /**
     * Subtotal
     * 小计
     */
    subtotal: number;
    /**
     * Total discount amount
     * 总折扣金额
     */
    discount: number;
};
/**
 * Shopping cart change reason
 * 购物篮改变原因
 */
export type ShoppingCartChangeReason = "add" | "clear" | "remove" | "title" | "update";
/**
 * Shopping cart
 * 购物篮
 */
export declare class ShoppingCart<T extends ShoppingCartItem> {
    private readonly storage;
    /**
     * Create identifier key
     * 创建识别键
     * @param currency Currency
     * @param culture Culture
     * @param key Additional key
     * @returns Result
     */
    static createKey(currency: Currency, culture: string, key: string): string;
    /**
     * Clear shopping cart
     * 清除购物篮
     * @param identifier Identifier
     * @param storage Storage
     */
    static clear(identifier: string, storage: IStorage): void;
    /**
     * Get cart data
     * 获取购物篮数据
     * @param storage Storage
     * @param id Cart id
     * @returns Result
     */
    static getCartData<D extends ShoppingCartItem>(storage: IStorage, id: string): ShoppingCartData<D> | undefined;
    /**
     * Owner data
     * 所有者信息
     */
    owner?: ShoppingCartOwner;
    _currency: Currency;
    /**
     * ISO currency id
     * 标准货币编号
     */
    get currency(): Currency;
    private set currency(value);
    _culture: string;
    /**
     * ISO culture id, like zh-Hans
     * 标准语言文化编号
     */
    get culture(): string;
    private set culture(value);
    _items: T[];
    /**
     * Items
     * 项目
     */
    get items(): T[];
    private set items(value);
    _promotions: ShoppingPromotion[];
    /**
     * Order level promotions
     * 订单层面促销
     */
    get promotions(): ShoppingPromotion[];
    private set promotions(value);
    /**
     * Related form data
     * 关联的表单数据
     */
    formData: any;
    /**
     * Cache
     * 缓存对象
     */
    cache?: Record<string, unknown>;
    _symbol: string | undefined;
    /**
     * Currency symbol
     * 币种符号
     */
    get symbol(): string | undefined;
    private set symbol(value);
    /**
     * Key for identifier
     */
    readonly key: string;
    /**
     * Cart identifier
     * 购物篮标识
     */
    get identifier(): string;
    /**
     * All data keys
     * 所有的数据键
     */
    get keys(): string[];
    set keys(items: string[]);
    /**
     * Lines count
     * 项目数量
     */
    get lines(): number;
    /**
     * Total qty
     * 总数量
     */
    get totalQty(): number;
    /**
     * Total amount
     * 总金额
     */
    get totalAmount(): number;
    /**
     * Total amount string
     * 总金额字符串
     */
    get totalAmountStr(): string;
    /**
     * Cached prices
     * 缓存的价格
     */
    private prices;
    /**
     * Onchange callback
     * 改变时回调
     */
    onChange?: (reason: ShoppingCartChangeReason, changedItems: T[]) => void;
    /**
     * Constructor
     * 构造函数
     * @param key Key for identifier
     * @param init Currency & culture ISO code array
     * @param storage Data storage
     */
    constructor(key: string, init: [Currency, string], storage?: IStorage);
    /**
     * Constructor
     * 构造函数
     * @param key Key for identifier
     * @param state Initialization state
     * @param storage Data storage
     */
    constructor(key: string, state: ShoppingCartData<T>, storage?: IStorage);
    private getCartData;
    private setCartData;
    private doChange;
    /**
     * Add item
     * 添加项目
     * @param item New item
     */
    addItem(item: T): void;
    /**
     * Add items
     * @param items New items
     */
    addItems(items: T[]): void;
    /**
     * Cache price
     * @param id Item id
     * @param price Price
     * @param overrideExisting Override existing price
     */
    cachePrice(id: T["id"], price: number, overrideExisting?: boolean): void;
    /**
     * Change currency
     * @param currency Currency
     */
    changeCurrency(currency: Currency): void;
    /**
     * Change culture
     * @param culture Culture
     */
    changeCulture(culture: string): void;
    /**
     * Clear storage
     * @param keepOwner Keep owner data
     */
    clear(keepOwner?: boolean): void;
    /**
     * Format amount
     * @param amount Amount
     * @returns Result
     */
    formatAmount(amount: number): string;
    /**
     * Get item
     * @param id Item id
     * @returns Result
     */
    getItem(id: T["id"]): T | undefined;
    /**
     * Push item
     * 推送项目
     * @param data Item data
     * @returns Added or not
     */
    pushItem(data: T): boolean;
    /**
     * Reset currency and culture
     * @param currency New currency
     * @param culture New culture
     */
    reset(currency: Currency, culture: string): void;
    /**
     * Remove item from the index
     * @param index Item index
     */
    removeItem(index: number): void;
    /**
     * Reset item
     * @param item Shopping cart item
     */
    resetItem(item: ShoppingCartItem): void;
    /**
     * Save cart data
     * @param persisted For persisted storage
     */
    save(persisted?: boolean): ShoppingCartData<T> | undefined;
    /**
     * Trigger update
     * 触发更新
     */
    update(): void;
    /**
     * Update discount
     * @param item Shopping cart item
     */
    updateDiscount(item: ShoppingCartItem): void;
    /**
     * Update asset item
     * 更新资产项目
     * @param id Product id
     * @param qty Asset qty
     * @param itemCreator New item creator
     * @returns Updated or not
     */
    updateAssetItem(id: T["id"], assetQty: number | undefined, itemCreator?: () => Omit<T, "id" | "price" | "assetQty" | "subtotal" | "discount" | "promotions">): boolean;
    /**
     * Update item
     * 更新项目
     * @param id Product id
     * @param qty Qty
     * @param itemCreator New item creator
     * @returns Updated or not
     */
    updateItem(id: T["id"], qty: number | undefined, itemCreator?: () => Omit<T, "id" | "price" | "qty" | "subtotal" | "discount" | "promotions">): boolean;
    /**
     * Update price
     * @param id Item id
     * @param price New price
     */
    updatePrice(id: T["id"], price: number): void;
    /**
     * Update title
     * @param id Item id
     * @param title New title
     */
    updateTitle(id: T["id"], title: string): void;
}