import { ComponentOptionsMixin } from 'vue';
import { ComponentProvideOptions } from 'vue';
import { ComputedRef } from 'vue';
import { DefineComponent } from 'vue';
import { PublicProps } from 'vue';
import { Ref } from 'vue';

/**
 * 计算器按键类型
 */
export declare type ButtonType = "number" | "operator" | "function" | "clear";

export declare const Calculator: DefineComponent<    {}, {}, {}, {}, {}, ComponentOptionsMixin, ComponentOptionsMixin, {}, string, PublicProps, Readonly<{}> & Readonly<{}>, {}, {}, {}, {}, string, ComponentProvideOptions, true, {
displayRef: HTMLDivElement;
}, HTMLDivElement>;

/**
 * 计算器状态接口
 */
export declare interface CalculatorState {
    display: string;
    previousValue: string;
    currentOperator: OperatorType;
    waitingForNewValue: boolean;
    history: string[];
    memory: string;
    isError: boolean;
    errorMessage: string;
}

/**
 * 默认导出，支持多种使用方式
 */
declare const _default: {
    install: typeof install;
    Calculator: DefineComponent<    {}, {}, {}, {}, {}, ComponentOptionsMixin, ComponentOptionsMixin, {}, string, PublicProps, Readonly<{}> & Readonly<{}>, {}, {}, {}, {}, string, ComponentProvideOptions, true, {
    displayRef: HTMLDivElement;
    }, HTMLDivElement>;
    useCalculator: typeof useCalculator;
    useCalculatorStore: typeof useCalculator;
};
export default _default;

/**
 * Vue插件安装函数
 * @param app Vue 应用实例
 */
export declare function install(app: any): void;

/**
 * 操作符类型
 */
export declare type OperatorType = "+" | "-" | "*" | "/" | "=" | null;

/**
 * 计算器 Hook
 * 使用 Vue3 Composition API 实现状态管理，替代 Pinia
 */
declare function useCalculator(): {
    display: Ref<string, string>;
    previousValue: Ref<string, string>;
    currentOperator: Ref<OperatorType, OperatorType>;
    waitingForNewValue: Ref<boolean, boolean>;
    history: Ref<string[], string[]>;
    memory: Ref<string, string>;
    isError: Ref<boolean, boolean>;
    errorMessage: Ref<string, string>;
    expression: Ref<string, string>;
    displayText: ComputedRef<string>;
    expressionText: ComputedRef<string>;
    inputNumber: (num: string) => void;
    inputDecimal: () => void;
    inputOperator: (operator: OperatorType) => void;
    calculate: () => void;
    removeHistoryItem: (index: number) => void;
    clearEntry: () => void;
    clearAll: () => void;
    backspace: () => void;
    toggleSign: () => void;
    percentage: () => void;
    squareRoot: () => void;
    square: () => void;
    reciprocal: () => void;
    memoryStore: () => void;
    memoryRecall: () => void;
    memoryClear: () => void;
    memoryAdd: () => void;
    memorySubtract: () => void;
    formatNumber: (value: string) => string;
    scientificFunction: (func: string) => void;
    factorial: () => void;
};
export { useCalculator }
export { useCalculator as useCalculatorStore }

export declare const version = "1.0.0";

export { }