アラート機能の全面的な書き直し

close #67

src/backend/services/misskey.ts

@@ -1,16 +1,35 @@
 import axios from 'axios';
+import {printLog} from '../store';
+import {delay} from '../utils/delay';
 
-export const ua = `Mozilla/5.0 MisskeyTools +https://github.com/Xeltica/MisskeyTools Node/${process.version}`;
+export const ua = `Mozilla/5.0 MisskeyTools +https://github.com/shrimpia/misskey-tools Node/${process.version}`;
+
+const RETRY_COUNT = 5;
 
 /**
  * Misskey APIを呼び出す
  */
-export const api = <T = Record<string, unknown>>(host: string, endpoint: string, arg: Record<string, unknown>, i?: string): Promise<T> => {
+export const api = async <T = Record<string, unknown>>(host: string, endpoint: string, arg: Record<string, unknown>, token?: string): Promise<T> => {
 	const a = { ...arg };
-	if (i) {
-		a.i = i;
+	if (token) {
+		a.i = token;
 	}
-	return axios.post<T>(`https://${host}/api/${endpoint}`, a).then(res => res.data);
+
+	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();
 };
 
 /**
@@ -27,3 +46,18 @@ export const apiAvailable = async (host: string, i: string): Promise<boolean> =>
 		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;
+}