import axios from 'axios';
import {printLog} from '../store';
import {delay} from '../utils/delay';

export const ua = `Mozilla/5.0 MisskeyTools +https://github.com/shrimpia/misskey-tools Node/${process.version}`;

const RETRY_COUNT = 5;

/**
 * Misskey APIを呼び出す
 */
export const api = async <T = Record<string, unknown>>(host: string, endpoint: string, arg: Record<string, unknown>, token?: string): Promise<T> => {
	const a = { ...arg };
	if (token) {
		a.i = token;
	}

	for (let i = 0; i < RETRY_COUNT; i++) {
		let data: T;
		try {
			data = await axios.post<T>(`https://${host}/api/${endpoint}`, a).then(res => res.data);
		} catch (e) {
			printLog(`接続エラー: ${host}/api/${endpoint} リトライ中 (${i + 1} / ${RETRY_COUNT})\n${e}`, 'error');
			await delay(3000);
			continue;
		}
		if (!('error' in data)) {
			return data;
		}
		throw new MisskeyError((data as any).error);
	}
	throw new TimedOutError();
};

/**
 * トークンが有効かどうかを確認する
 * @param host 対象のホスト名
 * @param i トークン
 * @returns トークンが有効ならtrue、無効ならfalse
 */
export const apiAvailable = async (host: string, i: string): Promise<boolean> => {
	try {
		const res = await api(host, 'i', {}, i);
		return !res.error;
	} catch {
		return false;
	}
};

export class TimedOutError extends Error {}

export class MisskeyError extends Error {
	constructor(public error: MisskeyErrorObject) {
		super();
	}
}

export interface MisskeyErrorObject {
	message: string;
	code: string;
	id: string;
	kind: string;
}