#!/usr/bin/env bash
# 确保 yw-dev DB 隧道在线（bridge-tools 依赖它）。
# 幂等：隧道已完整转发时直接退出；否则调用 yw-db-tunnel start 并记日志。
# cron：@reboot sleep 60; .../ensure-tunnel.sh
#       */5 * * * * .../ensure-tunnel.sh
set -uo pipefail
export PATH="/home/dev/.local/bin:/usr/local/bin:/usr/bin:/bin"

TUNNEL="/home/dev/.local/bin/yw-db-tunnel"
LOG="/home/dev/code/yehwang-ai/libredesk/logs/tunnel.log"
mkdir -p "$(dirname "$LOG")"

status_out="$("$TUNNEL" status 2>/dev/null || true)"
if printf '%s' "$status_out" | grep -q '隧道进程: 运行中' \
   && ! printf '%s' "$status_out" | grep -q '未转发'; then
  exit 0
fi

echo "[$(date -Is)] tunnel down, starting" >> "$LOG"
if "$TUNNEL" start >> "$LOG" 2>&1; then
  echo "[$(date -Is)] tunnel ok" >> "$LOG"
  exit 0
fi
echo "[$(date -Is)] tunnel start FAILED (see log above)" >> "$LOG"
exit 1