#!/bin/bash
# بازگردانی سرور به حالت قبل از CDN — بدون ParsPack
# اجرا: bash /root/modstagram-back/scripts/revert-cdn-server.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
SERVER_IP="${SERVER_IP:-185.164.73.197}"

echo "=========================================="
echo "  Revert CDN / restore direct API storage"
echo "  Server IP: $SERVER_IP"
echo "=========================================="

echo ""
echo ">>> [1/5] Disable CDN nginx site..."
rm -f /etc/nginx/sites-enabled/cdn.modstagram.com.conf
rm -f /etc/nginx/sites-enabled/cdn.modstagram.com.http.conf 2>/dev/null || true

echo ""
echo ">>> [2/5] Restore API nginx (proxy to Node 3002)..."
if [ -f "$SCRIPT_DIR/nginx/api.modstagram.com.conf" ]; then
  cp "$SCRIPT_DIR/nginx/api.modstagram.com.conf" /etc/nginx/sites-available/api.modstagram.com.conf
  ln -sf /etc/nginx/sites-available/api.modstagram.com.conf /etc/nginx/sites-enabled/api.modstagram.com.conf
fi

echo ""
echo ">>> [3/5] Stop local BIND9 (optional — if it conflicts with registrar DNS)..."
if systemctl is-active --quiet bind9 2>/dev/null; then
  systemctl stop bind9 2>/dev/null || true
  systemctl disable bind9 2>/dev/null || true
  echo "    BIND9 stopped (DNS now from registrar only)"
else
  echo "    BIND9 not running"
fi

echo ""
echo ">>> [4/5] Test nginx and reload..."
nginx -t
systemctl reload nginx

echo ""
echo ">>> [5/5] Restart backend + check local storage..."
if command -v pm2 >/dev/null 2>&1; then
  pm2 restart modstagram-back || pm2 restart all || true
fi

sleep 2

echo ""
echo "--- Local diagnostics (no curl needed) ---"
echo -n "API version: "
wget -qO- --timeout=5 http://127.0.0.1:3002/api/v1/version 2>/dev/null || echo "FAILED"

SAMPLE_IMG=$(find /root/modstagram-back/storage/posts/images -type f 2>/dev/null | head -1)
if [ -n "$SAMPLE_IMG" ]; then
  REL="/storage/posts/images/$(basename "$SAMPLE_IMG")"
  echo "Sample file: $SAMPLE_IMG"
  echo "Testing: http://127.0.0.1:3002$REL"
  wget -S --spider --timeout=5 "http://127.0.0.1:3002$REL" 2>&1 | head -8
else
  echo "WARN: no images in storage/posts/images"
fi

echo ""
echo "=========================================="
echo "  DONE"
echo "=========================================="
echo ""
echo "  Apps must use:"
echo "    NEXT_PUBLIC_IMAGE_BASE_URL=https://api.modstagram.com/storage"
echo ""
echo "  In ParsPack panel (when ready):"
echo "    - Disable WCDN for api.modstagram.com"
echo "    - A record api -> $SERVER_IP"
echo ""
echo "  Rebuild frontends:"
echo "    cd /root/modstagram-next && npm run build && pm2 restart modstagram-next"
echo "    cd /root/modstagram_panel && npm run build && pm2 restart modstagram_panel"
echo ""