#!/bin/bash

# Test Docker Network Connectivity
# This script helps debug Docker network issues

echo "=== Docker Network Connectivity Test ==="

# Check if Docker is running
if ! docker info > /dev/null 2>&1; then
    echo "Error: Docker is not running"
    exit 1
fi

# Get Docker host IP
echo "Docker Host Information:"
if command -v docker-machine &> /dev/null; then
    DOCKER_HOST_IP=$(docker-machine ip default 2>/dev/null || echo "localhost")
else
    DOCKER_HOST_IP="localhost"
fi
echo "  - Docker Host IP: $DOCKER_HOST_IP"

# Check running containers
echo -e "\nRunning Containers:"
docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"

# Test port 8082 (license server)
echo -e "\nTesting License Server Port (8082):"
if nc -z localhost 8082 2>/dev/null; then
    echo "  ✓ Port 8082 is open on localhost"
else
    echo "  ✗ Port 8082 is not open on localhost"
fi

# Test from host to host.docker.internal
echo -e "\nTesting host.docker.internal from host:"
if ping -c 1 host.docker.internal >/dev/null 2>&1; then
    echo "  ✓ Can reach host.docker.internal from host"
    HOST_DOCKER_IP=$(ping -c 1 host.docker.internal | grep "PING" | sed 's/.*(\([^)]*\)).*/\1/')
    echo "  - Resolved to IP: $HOST_DOCKER_IP"
else
    echo "  ✗ Cannot reach host.docker.internal from host"
fi

# Test network connectivity from within a container
echo -e "\nTesting network from within container:"
if docker ps | grep -q timetracker-app; then
    echo "  - Testing from timetracker-app container:"
    docker exec timetracker-app ping -c 1 host.docker.internal >/dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "    ✓ Container can reach host.docker.internal"
    else
        echo "    ✗ Container cannot reach host.docker.internal"
    fi
    
    # Get container IP
    CONTAINER_IP=$(docker exec timetracker-app hostname -I | awk '{print $1}')
    echo "    - Container IP: $CONTAINER_IP"
else
    echo "  - timetracker-app container not running"
fi

# Show Docker network information
echo -e "\nDocker Networks:"
docker network ls

# Show detailed network info for default bridge
echo -e "\nDefault Bridge Network Details:"
docker network inspect bridge 2>/dev/null | grep -A 10 -B 5 "Containers"

echo -e "\n=== End Network Test ==="
echo ""
echo "If you're having connectivity issues:"
echo "1. Make sure your license server is running on port 8082"
echo "2. Check if the license server is accessible from the host"
echo "3. Verify Docker network configuration"
echo "4. Consider using Docker service names instead of host.docker.internal"