deploy.sh

#!/bin/bash

# Deployment script for Telegram Reminder Bot
# Run as: ./deploy.sh

set -e

echo "🚀 Deploying Telegram Reminder Bot..."

# Configuration
APP_DIR="/opt/reminder-bot"
APP_USER="reminder-bot"
SERVICE_NAME="reminder-bot"

# Check if running as root
if [[ $EUID -ne 0 ]]; then
   echo "❌ This script must be run as root (use sudo)"
   exit 1
fi

# Install Python and required packages
echo "📦 Installing system dependencies..."
apt update
apt install -y python3 python3-pip python3-venv git

# Create application user
if ! id "$APP_USER" &>/dev/null; then
    echo "👤 Creating application user: $APP_USER"
    useradd --system --shell /bin/false --home-dir "$APP_DIR" --create-home "$APP_USER"
fi

# Create application directory
echo "📁 Setting up application directory: $APP_DIR"
mkdir -p "$APP_DIR"

# Copy application files (assuming script is run from repo root)
echo "📋 Copying application files..."
cp -r . "$APP_DIR/"
chown -R "$APP_USER:$APP_USER" "$APP_DIR"

# Setup Python virtual environment
echo "🐍 Setting up Python virtual environment..."
sudo -u "$APP_USER" python3 -m venv "$APP_DIR/venv"
sudo -u "$APP_USER" "$APP_DIR/venv/bin/pip" install -r "$APP_DIR/requirements.txt"

# Create environment file if it doesn't exist
if [ ! -f "$APP_DIR/.env" ]; then
    echo "⚙️  Creating environment configuration..."
    cat > "$APP_DIR/.env" << EOF
# Telegram Bot Token - REQUIRED
# Get this from @BotFather on Telegram
TELEGRAM_BOT_TOKEN=your_bot_token_here

# Optional: Log level (DEBUG, INFO, WARNING, ERROR)
LOG_LEVEL=INFO
EOF
    chown "$APP_USER:$APP_USER" "$APP_DIR/.env"
    chmod 600 "$APP_DIR/.env"
    echo "⚠️  Please edit $APP_DIR/.env and set your TELEGRAM_BOT_TOKEN"
fi

# Create systemd service file
echo "🔧 Creating systemd service..."
cat > "/etc/systemd/system/$SERVICE_NAME.service" << EOF
[Unit]
Description=Telegram Reminder Bot
After=network.target
Wants=network.target

[Service]
Type=simple
User=$APP_USER
Group=$APP_USER
WorkingDirectory=$APP_DIR
Environment=PATH=$APP_DIR/venv/bin
EnvironmentFile=$APP_DIR/.env
ExecStart=$APP_DIR/venv/bin/python $APP_DIR/viberemind.py
Restart=always
RestartSec=10
StandardOutput=journal
StandardError=journal

# Security settings
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=strict
ProtectHome=true
ReadWritePaths=$APP_DIR

[Install]
WantedBy=multi-user.target
EOF

# Reload systemd and enable service
echo "🔄 Configuring systemd service..."
systemctl daemon-reload
systemctl enable "$SERVICE_NAME"

# Create log directory
mkdir -p /var/log/reminder-bot
chown "$APP_USER:$APP_USER" /var/log/reminder-bot

echo "✅ Deployment complete!"
echo ""
echo "Next steps:"
echo "1. Edit $APP_DIR/.env and set your TELEGRAM_BOT_TOKEN"
echo "2. Start the service: sudo systemctl start $SERVICE_NAME"
echo "3. Check status: sudo systemctl status $SERVICE_NAME"
echo "4. View logs: sudo journalctl -u $SERVICE_NAME -f"
echo ""
echo "The bot will automatically start on system boot."