run_client.sh

#!/bin/bash
# PCQ Messenger - Client Launcher
# This script starts a chat client and connects to the server

set -e

echo "╔════════════════════════════════════════════════════════════╗"
echo "║              PCQ Messenger - Client Launcher               ║"
echo "╚════════════════════════════════════════════════════════════╝"
echo ""

# Get server address
if [ -z "$1" ]; then
    read -p "Enter server IP address (default: localhost): " SERVER_IP
    SERVER_IP=${SERVER_IP:-localhost}
else
    SERVER_IP=$1
fi

# Get username
read -p "Enter your username: " USERNAME
if [ -z "$USERNAME" ]; then
    echo "❌ Username cannot be empty"
    exit 1
fi

# Get encryption mode
echo ""
echo "Select encryption mode:"
echo "  1) Hybrid (Classical + Post-Quantum) [Recommended]"
echo "  2) Post-Quantum Only"
echo "  3) Classical Only"
read -p "Enter choice (1-3, default: 1): " MODE_CHOICE
MODE_CHOICE=${MODE_CHOICE:-1}

case $MODE_CHOICE in
    1) ENCRYPTION_MODE="hybrid" ;;
    2) ENCRYPTION_MODE="pq" ;;
    3) ENCRYPTION_MODE="classical" ;;
    *) ENCRYPTION_MODE="hybrid" ;;
esac

echo ""
echo "🔐 Encryption Mode: $ENCRYPTION_MODE"
echo "🌐 Server: $SERVER_IP:8080"
echo "👤 Username: $USERNAME"
echo ""

# Check if Python is installed
if ! command -v python3 &> /dev/null; then
    echo "❌ Python 3 is not installed. Please install Python 3 first."
    exit 1
fi

# Start web UI
echo "🚀 Starting web interface..."
WEB_PORT=5000

# Start Flask server in background
python3 -m app.web_ui --port $WEB_PORT &
WEB_PID=$!

# Wait for web server to start
sleep 2

# Open browser
WEB_URL="http://localhost:$WEB_PORT/?username=$USERNAME&server=ws://$SERVER_IP:8080"

echo ""
echo "✅ Web interface started!"
echo "🌐 Opening browser at: $WEB_URL"
echo ""

if command -v xdg-open &> /dev/null; then
    xdg-open "$WEB_URL" 2>/dev/null &
elif command -v open &> /dev/null; then
    open "$WEB_URL" 2>/dev/null &
else
    echo "Please open this URL in your browser:"
    echo "$WEB_URL"
fi

echo ""
echo "Press Ctrl+C to stop the client"
echo ""

# Wait for web server
wait $WEB_PID