From b7702d0285afcdf2eed6506d68462c33d8870861 Mon Sep 17 00:00:00 2001
From: admin <362324317@qq.com>
Date: Fri, 15 May 2026 06:51:15 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=90=8CIP=E9=BB=98=E8=AE=A4=E8=B4=A6?=
 =?UTF-8?q?=E5=8F=B7=E9=85=8D=E9=A2=9D=E6=94=B9=E4=B8=BA=20primaryCount=20?=
 =?UTF-8?q?=C3=97=202?=
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- 动态计算该类型默认账号数量 primaryCount
- 前 primaryCount × 2 次在同IP的两个默认账号间轮询
- 超限后再去其他非默认账号
- 无默认账号时 threshold=0, 直接走轮询
---
 packages/backend/src/cloud/credential.service.ts | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/packages/backend/src/cloud/credential.service.ts b/packages/backend/src/cloud/credential.service.ts
index f079de9..c78e63b 100644
--- a/packages/backend/src/cloud/credential.service.ts
+++ b/packages/backend/src/cloud/credential.service.ts
@@ -456,8 +456,15 @@ export async function getAndValidateCredential(cloudType: string, ipAddress?: st
 
     const ipTodayCount = ipCountRow?.total || 0;
 
-    if (ipTodayCount < 3) {
-      // First 2 saves — use a primary account (is_primary=1), fallback to any healthy
+    // How many primary accounts does this cloud type have?
+    const primaryCountRow = db.prepare(
+      `SELECT COUNT(*) as c FROM cloud_configs WHERE cloud_type = ? AND is_primary = 1 AND is_active = 1`
+    ).get(cloudType) as { c: number };
+    const primaryCount = primaryCountRow?.c || 0;
+    const primaryThreshold = primaryCount * 2; // Each primary account gets 2 uses per IP
+
+    if (ipTodayCount < primaryThreshold) {
+      // First N saves (primaryCount × 2) — use primary accounts (is_primary=1), fallback to any healthy
       config = db.prepare(
         `SELECT * FROM cloud_configs
          WHERE cloud_type = ? AND is_active = 1
@@ -466,7 +473,7 @@ export async function getAndValidateCredential(cloudType: string, ipAddress?: st
          LIMIT 1`
       ).get(cloudType) as CloudConfig | undefined;
     } else {
-      // 3rd+ save — exclude accounts this IP has already used today,
+      // After primary threshold — exclude accounts this IP has already used today,
       // fall back to other available accounts round-robin
       const usedConfigIds = db.prepare(
         `SELECT DISTINCT config_id FROM ip_daily_save_counts