import type { ArrayOrNot, ChainedConfigWithUtils, ChainedConfigCombineUtils } from '../utils';
export type CrossOrigin = 'anonymous' | 'use-credentials';
export type ScriptInject = boolean | 'body' | 'head';
export type ScriptLoading = 'defer' | 'module' | 'blocking';
export type OutputStructure = 'flat' | 'nested';
/**
 * custom properties
 * e.g. { name: 'viewport' content: 'width=500, initial-scale=1' }
 * */
export type MetaAttrs = {
    [attrName: string]: string | boolean;
};
export type MetaOptions = {
    /**
     * name content pair
     * e.g. { viewport: 'width=device-width, initial-scale=1, shrink-to-fit=no' }`
     * */
    [name: string]: string | false | MetaAttrs;
};
export type HtmlTag = {
    tag: string;
    attrs?: Record<string, string | boolean | null | undefined>;
    children?: string;
    hash?: boolean | string | ((url: string, hash: string) => string);
    publicPath?: boolean | string | ((url: string, publicPath: string) => string);
    append?: boolean;
    head?: boolean;
};
export type HtmlTagUtils = {
    hash: string;
    entryName: string;
    outputName: string;
    publicPath: string;
};
export type HtmlTagHandler = (tags: HtmlTag[], utils: HtmlTagUtils) => HtmlTag[] | void;
export type HtmlTagDescriptor = HtmlTag | HtmlTagHandler;
type ChainedHtmlOption<O> = ChainedConfigCombineUtils<O, {
    entryName: string;
}>;
export interface HtmlConfig {
    /**
     * Configure the `<meta>` tag of the HTML.
     */
    meta?: ChainedHtmlOption<MetaOptions>;
    /**
     * Set the title tag of the HTML page.
     */
    title?: ChainedHtmlOption<string>;
    /**
     * Set the inject position of the `<script>` tag.
     */
    inject?: ChainedHtmlOption<ScriptInject>;
    /**
     * Inject custom html tags into the output html files.
     */
    tags?: ArrayOrNot<HtmlTagDescriptor>;
    /**
     * Set the favicon icon for all pages.
     */
    favicon?: ChainedHtmlOption<string>;
    /**
     * Set the file path of the app icon, which can be a relative path or an absolute path.
     */
    appIcon?: string;
    /**
     * Set the id of root element.
     */
    mountId?: string;
    /**
     * Set the [crossorigin](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin) attribute
     * of the `<script>` tag.
     */
    crossorigin?: boolean | CrossOrigin;
    /**
     * Define the directory structure of the HTML output files.
     */
    outputStructure?: OutputStructure;
    /**
     * Define the path to the HTML template,
     * corresponding to the `template` config of [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin).
     */
    template?: ChainedHtmlOption<string>;
    /**
     * Define the parameters in the HTML template,
     * corresponding to the `templateParameters` config of [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin).
     */
    templateParameters?: ChainedConfigWithUtils<Record<string, unknown>, {
        entryName: string;
    }>;
    /**
     * Set the loading mode of the `<script>` tag.
     */
    scriptLoading?: ScriptLoading;
}
export type NormalizedHtmlConfig = HtmlConfig & {
    meta: ChainedHtmlOption<MetaOptions>;
    title: ChainedHtmlOption<string>;
    mountId: string;
    inject: ChainedHtmlOption<ScriptInject>;
    crossorigin: boolean | CrossOrigin;
    outputStructure: OutputStructure;
    scriptLoading: ScriptLoading;
};
export {};
