import { ComputedRef, Ref } from 'vue';
export type RegionLanguages = 'cn' | 'en';
export type RegionLevel = 'province' | 'city' | 'area' | 'town';
export type ModelProperty = 'key' | 'value';
export type LevelListLoader = (model?: RegionItem) => Promise<RegionItem[]> | RegionItem[];
export type AsyncLevelListLoader = (model?: RegionItem) => Promise<RegionItem[]>;
/**
 * 区域元素基本模型
 */
export declare interface RegionItem {
    key?: string;
    value?: string;
}
export declare interface RegionModel {
    /** 省份模型 */
    province?: RegionItem;
    /** 城市模型 */
    city?: RegionItem;
    /** 区域模型 */
    area?: RegionItem;
    /** 村镇模型 */
    town?: RegionItem;
}
/**
 * 用户输入模型
 */
export declare interface RegionValues {
    /** 省份编码 */
    province?: string | null | undefined;
    /** 城市编码 */
    city?: string | null | undefined;
    /** 区域编码 */
    area?: string | null | undefined;
    /** 村镇编码 */
    town?: string | null | undefined;
}
export interface RegionProps {
    /** 输入区域模型 */
    modelValue: RegionValues;
    /**
     * 启用城市级别
     * @default true
     */
    city: boolean;
    /**
     * 启用区、县级别
     * @default true
     */
    area: boolean;
    /**
     * 启用村、镇级别
     * @default false
     */
    town: boolean;
    /**
     * 语言
     * @default `cn`
     */
    language: RegionLanguages;
    /**
     * 自动选择低级别列表中的第一个项目
     * @default false
     */
    autoSelectFirst: boolean;
    /**
     * 禁用组件
     * @default false
     */
    disabled?: boolean;
    /**
     * 分隔符
     * @default ''
     */
    separator?: string;
    /**
     * 未选择时显示 `请选择` 的提示文本
     * @default true
     */
    blank?: boolean;
    /**
     * 标题栏
     * selects: 级别名称
     * column: 顶部标题栏
     */
    header?: boolean;
}
export interface LevelModel {
    index: number;
    level: RegionLevel;
    title: string;
}
export interface RegionLevelData {
    key: string | undefined;
    name: string | undefined;
    list: RegionItem[];
    enable: Ref<boolean> | ComputedRef<boolean>;
    getModel: () => RegionItem | undefined;
}
export interface RegionProvinceGroup {
    province: RegionItem;
    cities: RegionItem[];
}
export interface RegionLanguage {
    pleaseSelect: string;
    defaultHead: string;
    clear: string;
    noMatch: string;
    others: string;
}
export interface DropdownProvide {
    setTriggerText?: (text: string) => void;
}
export interface RegionUIOptions {
    afterModelChange?: () => void;
}
export interface RegionUIProvide {
    disabled: Ref<boolean>;
    state: Ref<Record<RegionLevel, RegionLevelData>>;
    loading: Ref<boolean>;
    lang: RegionLanguage;
    isComplete: () => boolean;
    hasCity: ComputedRef<boolean>;
    hasArea: ComputedRef<boolean>;
    hasTown: ComputedRef<boolean>;
    setLevel: (level: RegionLevel, key?: string) => Promise<void>;
    setupTownListLoader: (fn: AsyncLevelListLoader) => void;
}
/** 更新选中区域的键值 */
export declare type EmitUpdateModelValue = (event: 'update:modelValue', data: RegionValues) => void;
/** 更新选择中区域的名称列表 */
export declare type EmitUpdateNames = (event: 'update:names', data: string[]) => void;
/** 内容修改后的响应事件 */
export declare type EmitChange = (event: 'change', data: RegionModel) => void;
/** 选择完成 */
export declare type EmitComplete = (event: 'complete') => void;
export type RegionEmits = EmitUpdateModelValue & EmitUpdateNames & EmitChange;
type EmitValidator = (...args: unknown[]) => boolean;
export type EmptyEmits = Record<never, never>;
export type EmitsOptions = Record<string, EmitValidator>;
export {};