import { Plugin } from 'esbuild';
import { ParseOptions, DocumentOptions, SchemaOptions, ToJSOptions } from 'yaml';

type YAMLValue = number | string | boolean | null | {
    [key: string]: YAMLValue;
} | YAMLValue[];
interface YAMLPluginOptions {
    /**
     * Options to pass to the YAML parser.
     * @see https://eemeli.org/yaml/#options
     *
     * NOTE:
     * Options inside `ToJSOptions` only works if `type` is set to "single".
     */
    parserOptions?: ParseOptions & DocumentOptions & SchemaOptions & ToJSOptions;
    /**
     * The type of YAML file to parse.
     * @default "single"
     */
    type?: "single" | "multi";
    /**
     * A function to transform the parsed YAML data.
     * @param {YAMLValue} data The parsed YAML data.
     * @param {string} filePath The path to the YAML file.
     * @returns {YAMLValue | undefined} The transformed data.
     */
    transform?: (data: YAMLValue, filePath: string) => YAMLValue | undefined;
}
declare function YAMLPlugin(options?: YAMLPluginOptions): Plugin;

export { YAMLPlugin, type YAMLPluginOptions, YAMLPlugin as default };