feat: 订阅支持每月重置天数

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.245",
+  "version": "2.14.246",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {

backend/src/core/proxy-utils/processors/index.js

@@ -16,6 +16,7 @@ import {
     parseFlowHeaders,
     validCheck,
     flowTransfer,
+    getRmainingDays,
 } from '@/utils/flow';
 
 /**
@@ -863,6 +864,7 @@ function createDynamicFunction(name, script, $arguments) {
         parseFlowHeaders,
         flowTransfer,
         validCheck,
+        getRmainingDays,
     };
     if ($.env.isLoon) {
         return new Function(

backend/src/restful/subscriptions.js

@@ -6,7 +6,11 @@ import {
 } from './errors';
 import { deleteByName, findByName, updateByName } from '@/utils/database';
 import { SUBS_KEY, COLLECTIONS_KEY, ARTIFACTS_KEY } from '@/constants';
-import { getFlowHeaders, parseFlowHeaders } from '@/utils/flow';
+import {
+    getFlowHeaders,
+    parseFlowHeaders,
+    getRmainingDays,
+} from '@/utils/flow';
 import { success, failed } from './response';
 import $ from '@/core/app';
 
@@ -105,8 +109,10 @@ async function getFlowInfo(req, res) {
             );
             return;
         }
-
+        success(res, {
-        success(res, parseFlowHeaders(flowHeaders));
+            ...parseFlowHeaders(flowHeaders),
+            remainingDays: getRmainingDays($arguments.resetDay),
+        });
     } catch (err) {
         failed(
             res,

backend/src/utils/flow.js

@@ -143,3 +143,23 @@ export function validCheck(flow) {
         }
     }
 }
+
+export function getRmainingDays(_resetDay) {
+    if (!_resetDay) return;
+    const resetDay = parseInt(_resetDay);
+    if (isNaN(resetDay) || resetDay <= 0 || resetDay > 31) return;
+
+    let now = new Date();
+    let today = now.getDate();
+    let month = now.getMonth();
+    let year = now.getFullYear();
+    let daysInMonth;
+
+    if (resetDay > today) {
+        daysInMonth = 0;
+    } else {
+        daysInMonth = new Date(year, month + 1, 0).getDate();
+    }
+
+    return daysInMonth - today + resetDay;
+}