#!/bin/bash

# C-Relay Static Binary Deployment Script
# Deploys build/c_relay_static_x86_64 to server via sshlt
# Usage: ./deploy_static.sh [--debug-level=N] [-d=N]

set -e

# Configuration
LOCAL_BINARY="build/c_relay_static_x86_64"
REMOTE_BINARY_PATH="/usr/local/bin/c_relay/c_relay"
SERVICE_NAME="c-relay"

# Default debug level
DEBUG_LEVEL=0

# Parse command line arguments
while [[ $# -gt 0 ]]; do
    case $1 in
        --debug-level=*)
            DEBUG_LEVEL="${1#*=}"
            shift
            ;;
        -d=*)
            DEBUG_LEVEL="${1#*=}"
            shift
            ;;
        --debug-level)
            DEBUG_LEVEL="$2"
            shift 2
            ;;
        -d)
            DEBUG_LEVEL="$2"
            shift 2
            ;;
        *)
            echo "Unknown option: $1"
            echo "Usage: $0 [--debug-level=N] [-d=N]"
            exit 1
            ;;
    esac
done

# Validate debug level
if ! [[ "$DEBUG_LEVEL" =~ ^[0-5]$ ]]; then
    echo "Error: Debug level must be 0-5, got: $DEBUG_LEVEL"
    exit 1
fi

echo "Deploying with debug level: $DEBUG_LEVEL"

# Create backup
ssh ubuntu@laantungir.com "sudo cp '$REMOTE_BINARY_PATH' '${REMOTE_BINARY_PATH}.backup.$(date +%Y%m%d_%H%M%S)'" 2>/dev/null || true

# Upload binary to temp location
scp "$LOCAL_BINARY" "ubuntu@laantungir.com:/tmp/c_relay.tmp"

# Install binary
ssh ubuntu@laantungir.com "sudo mv '/tmp/c_relay.tmp' '$REMOTE_BINARY_PATH'"
ssh ubuntu@laantungir.com "sudo chown c-relay:c-relay '$REMOTE_BINARY_PATH'"
ssh ubuntu@laantungir.com "sudo chmod +x '$REMOTE_BINARY_PATH'"

# Update systemd service environment variable
ssh ubuntu@laantungir.com "sudo sed -i 's/Environment=DEBUG_LEVEL=.*/Environment=DEBUG_LEVEL=$DEBUG_LEVEL/' /etc/systemd/system/c-relay.service"

# Reload systemd and restart service
ssh ubuntu@laantungir.com "sudo systemctl daemon-reload"
ssh ubuntu@laantungir.com "sudo systemctl restart '$SERVICE_NAME'"

echo "Deployment complete!"