import {_defaults, _getDefaults, changeDefaults} from './defaults';
import {_Hooks} from './Hooks';
import type {MaybePromise} from './Instance';
import {Marked} from './Instance';
import {_Lexer} from './Lexer';
import type {MarkedExtension, MarkedOptions} from './MarkedOptions';
import {_Parser} from './Parser';
import {_Renderer} from './Renderer';
import {_TextRenderer} from './TextRenderer';
import {_Tokenizer} from './Tokenizer';
import type {Token, TokensList} from './Tokens';

const markedInstance = new Marked();

export function marked(src: string, opt?: MarkedOptions): string | Promise<string> {
    return markedInstance.parse(src, opt);
}

/**
 * Sets the default options.
 *
 * @param options Hash of options
 */
marked.options =
    marked.setOptions = function (options: MarkedOptions) {
        markedInstance.setOptions(options);
        marked.defaults = markedInstance.defaults;
        changeDefaults(marked.defaults);
        return marked;
    };

/**
 * Gets the original marked default options.
 */
marked.getDefaults = _getDefaults;

marked.defaults = _defaults;

/**
 * Use Extension
 */

marked.use = function (...args: MarkedExtension[]) {
    markedInstance.use(...args);
    marked.defaults = markedInstance.defaults;
    changeDefaults(marked.defaults);
    return marked;
};

/**
 * Run callback for every token
 */

marked.walkTokens = function (tokens: Token[] | TokensList, callback: (token: Token) => MaybePromise | MaybePromise[]) {
    return markedInstance.walkTokens(tokens, callback);
};

/**
 * Compiles markdown to HTML without enclosing `p` tag.
 *
 * @param src String of markdown source to be compiled
 * @param options Hash of options
 * @return String of compiled HTML
 */
marked.parseInline = markedInstance.parseInline;

/**
 * Expose
 */
marked.Parser = _Parser;
marked.parser = _Parser.parse;
marked.Renderer = _Renderer;
marked.TextRenderer = _TextRenderer;
marked.Lexer = _Lexer;
marked.lexer = _Lexer.lex;
marked.Tokenizer = _Tokenizer;
marked.Hooks = _Hooks;
marked.parse = marked;

export const options = marked.options;
export const setOptions = marked.setOptions;
export const use = marked.use;
export const walkTokens = marked.walkTokens;
export const parseInline = marked.parseInline;
export const parse = marked;
export const parser = _Parser.parse;
export const lexer = _Lexer.lex;
export {_defaults as defaults, _getDefaults as getDefaults} from './defaults';
export {_Lexer as Lexer} from './Lexer';
export {_Parser as Parser} from './Parser';
export {_Tokenizer as Tokenizer} from './Tokenizer';
export {_Renderer as Renderer} from './Renderer';
export {_TextRenderer as TextRenderer} from './TextRenderer';
export {_Hooks as Hooks} from './Hooks';
export {Marked} from './Instance';
export type * from './MarkedOptions';
export type * from './rules';
export type * from './Tokens';