#!/bin/bash
# FCM Setup Script for Sojorn Server
# Run this on the server after uploading your firebase-service-account.json

set -e

echo "=== Sojorn FCM Setup Script ==="
echo ""

# Check if running as root or with sudo
if [ "$EUID" -eq 0 ]; then 
    echo "Please run as regular user (patrick), not root"
    exit 1
fi

# Check if firebase service account JSON exists in /tmp
if [ ! -f "/tmp/firebase-service-account.json" ]; then
    echo "ERROR: /tmp/firebase-service-account.json not found"
    echo ""
    echo "Please upload it first:"
    echo "scp -i \"C:\\Users\\Patrick\\.ssh\\mpls.pem\" \"path\\to\\firebase-service-account.json\" patrick@194.238.28.122:/tmp/firebase-service-account.json"
    exit 1
fi

echo "✓ Found firebase-service-account.json in /tmp"

# Move to /opt/sojorn
echo "Moving firebase-service-account.json to /opt/sojorn..."
sudo mv /tmp/firebase-service-account.json /opt/sojorn/firebase-service-account.json

# Set permissions
echo "Setting permissions..."
sudo chmod 600 /opt/sojorn/firebase-service-account.json
sudo chown patrick:patrick /opt/sojorn/firebase-service-account.json

# Verify
if [ -f "/opt/sojorn/firebase-service-account.json" ]; then
    echo "✓ Firebase service account JSON installed"
    ls -lh /opt/sojorn/firebase-service-account.json
else
    echo "✗ Failed to install firebase-service-account.json"
    exit 1
fi

# Check if .env exists
if [ ! -f "/opt/sojorn/.env" ]; then
    echo "ERROR: /opt/sojorn/.env not found"
    echo "Please create it first"
    exit 1
fi

# Check if FIREBASE_CREDENTIALS_FILE is already in .env
if grep -q "FIREBASE_CREDENTIALS_FILE" /opt/sojorn/.env; then
    echo "✓ FIREBASE_CREDENTIALS_FILE already in .env"
else
    echo "Adding FIREBASE_CREDENTIALS_FILE to .env..."
    echo "" | sudo tee -a /opt/sojorn/.env > /dev/null
    echo "# Firebase Cloud Messaging" | sudo tee -a /opt/sojorn/.env > /dev/null
    echo "FIREBASE_CREDENTIALS_FILE=/opt/sojorn/firebase-service-account.json" | sudo tee -a /opt/sojorn/.env > /dev/null
    echo "✓ Added FIREBASE_CREDENTIALS_FILE to .env"
fi

# Prompt for VAPID key if not set
if ! grep -q "FIREBASE_WEB_VAPID_KEY" /opt/sojorn/.env; then
    echo ""
    echo "VAPID key not found in .env"
    echo "Get it from: https://console.firebase.google.com/project/sojorn-a7a78/settings/cloudmessaging"
    echo ""
    read -p "Enter your FIREBASE_WEB_VAPID_KEY (or press Enter to skip): " vapid_key
    
    if [ ! -z "$vapid_key" ]; then
        echo "FIREBASE_WEB_VAPID_KEY=$vapid_key" | sudo tee -a /opt/sojorn/.env > /dev/null
        echo "✓ Added FIREBASE_WEB_VAPID_KEY to .env"
    else
        echo "⚠ Skipped VAPID key - you'll need to add it manually later"
    fi
else
    echo "✓ FIREBASE_WEB_VAPID_KEY already in .env"
fi

echo ""
echo "=== Configuration Summary ==="
echo "Service Account JSON: /opt/sojorn/firebase-service-account.json"
sudo cat /opt/sojorn/.env | grep FIREBASE || echo "No FIREBASE vars found"

echo ""
echo "=== Restarting Go Backend ==="
cd /home/patrick/sojorn-backend
sudo systemctl restart sojorn-api
sleep 2
sudo systemctl status sojorn-api --no-pager

echo ""
echo "=== Checking Logs ==="
echo "Looking for FCM initialization..."
sudo journalctl -u sojorn-api --since "30 seconds ago" | grep -i "push\|fcm\|firebase" || echo "No FCM logs found yet"

echo ""
echo "✓ FCM Setup Complete!"
echo ""
echo "Next steps:"
echo "1. Update Flutter app with your VAPID key in firebase_web_config.dart"
echo "2. Hot restart the Flutter app"
echo "3. Check browser console for 'FCM token registered'"
echo ""
echo "To view live logs: sudo journalctl -u sojorn-api -f"