From 95838db387518399f01f2cee6d8380cc8e164039 Mon Sep 17 00:00:00 2001
From: howard <howardaile@outlook.com>
Date: Mon, 1 Dec 2025 23:45:37 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E4=BA=86=E7=BD=91=E8=B4=B9?=
 =?UTF-8?q?=E6=A3=80=E6=9F=A5=E5=89=A9=E4=BD=99=E6=97=A5=E6=9C=9F=E5=AF=B9?=
 =?UTF-8?q?macos=E7=9A=84=E5=85=BC=E5=AE=B9=E9=97=AE=E9=A2=98?=
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---
 src/elec_monitor.sh     |  0
 src/internet_monitor.sh | 24 +++++++++++++++++++-----
 2 files changed, 19 insertions(+), 5 deletions(-)
 mode change 100644 => 100755 src/elec_monitor.sh
 mode change 100644 => 100755 src/internet_monitor.sh

diff --git a/src/elec_monitor.sh b/src/elec_monitor.sh
old mode 100644
new mode 100755
diff --git a/src/internet_monitor.sh b/src/internet_monitor.sh
old mode 100644
new mode 100755
index 6d390b0..b633c5b
--- a/src/internet_monitor.sh
+++ b/src/internet_monitor.sh
@@ -59,6 +59,22 @@ $content"
     echo "$mail_data" | curl --silent --ssl-reqd --url "$curl_url" --user "$smtp_user:$smtp_pass" --mail-from "$smtp_user" --mail-rcpt "$target_email" --upload-file -
 }
 
+# 兼容 macOS (BSD date) 与 Linux (GNU date) 计算距离下个月1号的天数
+days_until_next_month() {
+    local now_ts next_month_ts
+    now_ts=$(date +%s)
+
+    if date -v1d -v+1m +%s >/dev/null 2>&1; then
+        # macOS/BSD date
+        next_month_ts=$(date -v1d -v+1m +%s)
+    else
+        # GNU date
+        next_month_ts=$(date -d "$(date +%Y-%m-01) +1 month" +%s)
+    fi
+
+    echo $(( (next_month_ts - now_ts) / 86400 ))
+}
+
 # 西海岸网费检查
 check_xha_net() {
     local sno=$(get_val "Internet.xha" "StudentID")
@@ -121,10 +137,8 @@ check_xha_net() {
         else
             # 4.2 如果配置了日期限制，检查是否接近月底
             # 计算距离下个月1号还有几天
-            local next_month_ts=$(date -d "$(date +%Y-%m-01) +1 month" +%s)
-            local now_ts=$(date +%s)
-            local diff_sec=$((next_month_ts - now_ts))
-            local diff_days=$((diff_sec / 86400))
+            local diff_days
+            diff_days=$(days_until_next_month)
 
             echo "距离月底结算还有: ${diff_days} 天 (配置阈值: ${day_limit} 天)"
 
@@ -168,4 +182,4 @@ case "$CAMPUS" in
     *)
         echo "未知的校区配置: $CAMPUS"
         ;;
-esac
\ No newline at end of file
+esac