#!/bin/bash
#
# RinHash Miner - Remote Docker Setup Script
# This script helps set up remote Docker access for building from another machine
#

set -e

echo "🐳 RinHash Miner - Remote Docker Setup"
echo "====================================="
echo ""

# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

# Check if running as root
if [[ $EUID -eq 0 ]]; then
    echo -e "${RED}❌ Please do not run this script as root!${NC}"
    echo "Run as a regular user with sudo access."
    exit 1
fi

# Check if Docker is installed
if ! command -v docker &> /dev/null; then
    echo -e "${RED}❌ Docker is not installed!${NC}"
    echo "Please install Docker first:"
    echo "  sudo apt update && sudo apt install -y docker.io"
    exit 1
fi

echo -e "${BLUE}📋 Checking current Docker status...${NC}"
sudo systemctl status docker --no-pager -l || true

echo ""
echo -e "${BLUE}🔧 Setting up Docker access...${NC}"

# Add user to docker group
echo "Adding user to docker group..."
sudo usermod -aG docker $USER

# Enable and start Docker service
echo "Enabling and starting Docker service..."
sudo systemctl enable docker
sudo systemctl start docker

# Test Docker access
echo ""
echo -e "${BLUE}🧪 Testing Docker access...${NC}"
if docker ps &> /dev/null; then
    echo -e "${GREEN}✅ Docker access working!${NC}"
else
    echo -e "${YELLOW}⚠️  Docker access may require logout/login or 'newgrp docker'${NC}"
fi

# Show Docker version and info
echo ""
echo -e "${BLUE}📊 Docker Information:${NC}"
docker --version
docker system info --format "Server Version: {{.ServerVersion}}\nOperating System: {{.OperatingSystem}}\nArchitecture: {{.Architecture}}"

# Test the build container
echo ""
echo -e "${BLUE}🚀 Testing RinHash build container...${NC}"
if docker run --rm cpuminer-windows-builder echo "RinHash build environment ready!" 2>/dev/null; then
    echo -e "${GREEN}✅ Build container working!${NC}"
else
    echo -e "${YELLOW}⚠️  Build container not found. You may need to pull it:${NC}"
    echo "  docker pull cpuminer-windows-builder"
fi

echo ""
echo -e "${GREEN}🎉 Setup Complete!${NC}"
echo ""
echo -e "${BLUE}📖 Next Steps:${NC}"
echo ""
echo "1. ${YELLOW}For SSH tunneling (Recommended - Most Secure):${NC}"
echo "   From your local machine:"
echo "   ssh -L localhost:2375:/var/run/docker.sock $USER@$(hostname -I | awk '{print $1}')"
echo "   export DOCKER_HOST=tcp://localhost:2375"
echo ""
echo "2. ${YELLOW}For Docker contexts:${NC}"
echo "   docker context create remote-build --docker \"host=ssh://$USER@$(hostname -I | awk '{print $1}')\""
echo "   docker context use remote-build"
echo ""
echo "3. ${YELLOW}For VS Code Remote Development:${NC}"
echo "   - Install VS Code extensions: Docker, Remote-SSH"
echo "   - Use Command Palette: Remote-SSH: Connect to Host"
echo "   - Run build tasks from VS Code"
echo ""
echo "4. ${YELLOW}Test remote access:${NC}"
echo "   docker run --rm cpuminer-windows-builder echo 'Remote Docker working!'"
echo ""
echo -e "${BLUE}📁 Build Commands:${NC}"
echo "   ./build-windows-smart.sh    # Smart build with curl detection"
echo "   ./build-windows.sh          # Manual build"
echo ""
echo -e "${GREEN}Happy building! 🚀${NC}"