#!/bin/bash
# VEO3 Report Deployment Script
# This script deploys the VEO3 report system to a Linux server

set -e  # Exit on error

# Configuration
DEPLOY_DIR="/var/www/veo3-report"
SERVICE_USER="www-data"
SERVICE_NAME="veo3-report"
LOG_DIR="/var/log/veo3-report"

echo "========================================"
echo "VEO3 Report System Deployment"
echo "========================================"
echo ""

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

# Create deployment directory
echo "Creating deployment directory: $DEPLOY_DIR"
mkdir -p "$DEPLOY_DIR"

# Create log directory
echo "Creating log directory: $LOG_DIR"
mkdir -p "$LOG_DIR"
mkdir -p "$DEPLOY_DIR/logs"

# Copy files
echo "Copying application files..."
cp veo3_report.py "$DEPLOY_DIR/"
cp veo3_scheduler.py "$DEPLOY_DIR/"
cp requirements.txt "$DEPLOY_DIR/"
cp .env "$DEPLOY_DIR/"

# Make scripts executable
chmod +x "$DEPLOY_DIR/veo3_scheduler.py"
chmod +x "$DEPLOY_DIR/veo3_report.py"

# Set up Python virtual environment
echo "Setting up Python virtual environment..."
cd "$DEPLOY_DIR"

if [ ! -d "venv" ]; then
    python3 -m venv venv
fi

# Install dependencies
echo "Installing Python dependencies..."
"$DEPLOY_DIR/venv/bin/pip" install --upgrade pip
"$DEPLOY_DIR/venv/bin/pip" install -r "$DEPLOY_DIR/requirements.txt"

# Set ownership
echo "Setting file ownership..."
chown -R "$SERVICE_USER:$SERVICE_USER" "$DEPLOY_DIR"
chown -R "$SERVICE_USER:$SERVICE_USER" "$LOG_DIR"

# Set permissions
chmod 600 "$DEPLOY_DIR/.env"  # Protect sensitive credentials

# Install systemd service
echo "Installing systemd service..."

# Update service file with correct paths
sed -e "s|/var/www/veo3-report|$DEPLOY_DIR|g" \
    -e "s|User=www-data|User=$SERVICE_USER|g" \
    -e "s|Group=www-data|Group=$SERVICE_USER|g" \
    veo3-report.service > /etc/systemd/system/${SERVICE_NAME}.service

# Reload systemd
echo "Reloading systemd daemon..."
systemctl daemon-reload

# Enable service (start on boot)
echo "Enabling service to start on boot..."
systemctl enable ${SERVICE_NAME}.service

# Start service
echo "Starting service..."
systemctl start ${SERVICE_NAME}.service

# Wait a moment for service to start
sleep 2

# Check service status
echo ""
echo "========================================"
echo "Service Status:"
echo "========================================"
systemctl status ${SERVICE_NAME}.service --no-pager

echo ""
echo "========================================"
echo "Deployment Complete!"
echo "========================================"
echo ""
echo "Service Commands:"
echo "  Start:   sudo systemctl start ${SERVICE_NAME}"
echo "  Stop:    sudo systemctl stop ${SERVICE_NAME}"
echo "  Restart: sudo systemctl restart ${SERVICE_NAME}"
echo "  Status:  sudo systemctl status ${SERVICE_NAME}"
echo "  Logs:    sudo journalctl -u ${SERVICE_NAME} -f"
echo ""
echo "Log Files:"
echo "  Service:   $LOG_DIR/service.log"
echo "  Errors:    $LOG_DIR/service-error.log"
echo "  Scheduler: $DEPLOY_DIR/logs/veo3_scheduler.log"
echo ""
echo "The report will run automatically at 7:00 PM EST every day."
echo ""