import { Plugin } from 'vite';
import { ComplexSafelist, Extractors } from 'purgecss';

type Extractor = (content: string) => string[];
type PurgeOptions = {
    /**
     * Path to your tailwind config. This can normally be automatically detected if the config
     * is located in the root of the project.
     *
     * Provide a path if your config resides anywhere outside of the root.
     */
    tailwindConfigPath?: string;
    /**
     * Enables `legacy` mode. (not recommended)
     *
     * Legacy mode brings back the old plugin behavior (`v0.2.1` and below) where all unused CSS is purged,
     * not just Tailwind classes. This mode is not recommended as it's too broad and can introduce
     * unexpected bugs.
     *
     * **Use with caution!**
     * @default false
     */
    legacy?: boolean;
    /**
     * A subset of PurgeCSS options.
     *
     * `legacy` must be set to `true` to enable.
     */
    purgecss?: PurgeCSSOptions;
    /**
     * A list of selectors that should be included in final CSS.
     *
     * **Note:** The safelist defined in your `tailwind.config.js` is already included.
     *
     * `legacy` must be set to `true` to enable.
     */
    safelist?: ComplexSafelist;
    /**
     * Enables `debug` mode.
     *
     * Incurs a large performance cost, dramatically slowing down build times.
     * @default false
     */
    debug?: boolean;
} & ({
    legacy?: false;
    purgecss?: never;
    safelist?: never;
} | {
    legacy: true;
    safelist?: ComplexSafelist;
    purgecss?: PurgeCSSOptions;
});
type PurgeCSSOptions = {
    /**
     * The extractor used on every file type.
     *
     * The default is set to Tailwind's default extractor.
     */
    defaultExtractor?: Extractor;
    /**
     * A list of custom extractors for specified file types.
     *
     * **Note:** The default extractor must be changed if you want to customize the extractor for `.js` files.
     */
    extractors?: Array<Extractors>;
    /**
     * Removes any unused @font-face rules.
     * @default false
     */
    fontFace?: boolean;
    /**
     * Removes any unused keyframes.
     * @default false
     */
    keyframes?: boolean;
    /**
     * Removes any unused CSS variables.
     * @default false
     */
    variables?: boolean;
    /**
     * Option to add custom CSS attribute selectors like `aria-selected`, `data-selected`, etc.
     * @see https://github.com/FullHuman/purgecss/issues/588
     */
    dynamicAttributes?: string[];
};

declare function purgeCss(purgeOptions?: PurgeOptions): Plugin;

export { PurgeOptions, purgeCss as default, purgeCss };