#!/usr/bin/env bash
# One-time setup script for Ubuntu environment.
# Installs system dependencies, sets up the Python venv, and prepares .env.
set -euo pipefail
cd "$(dirname "$0")"

echo "=== Homey MCP Server Ubuntu Setup ==="

# 1. Check Python version
PYTHON_CMD=""
if command -v python3 &>/dev/null; then
    PYTHON_CMD="python3"
elif command -v python &>/dev/null; then
    PYTHON_CMD="python"
else
    echo "ERROR: Python not found. Install Python 3.10+ first."
    echo "  Ubuntu: sudo apt install python3.10 python3.venv"
    exit 1
fi

PY_VER=$($PYTHON_CMD -c 'import sys; print(f"{sys.version_info.major}.{sys.version_info.minor}")')
echo "Found Python $PY_VER"

# 2. Install system dependencies if needed
if ! command -v uvicorn &>/dev/null 2>&1; then
    echo "Installing system dependencies..."
    sudo apt-get update -qq
    sudo apt-get install -y python3-pip python3-dev python3-venv build-essential libffi-dev libssl-dev
fi

# 3. Create virtual environment if it doesn't exist
if [ ! -d ".venv" ]; then
    echo "Creating virtual environment..."
    $PYTHON_CMD -m venv .venv
fi

source .venv/bin/activate

# 4. Install/update Python dependencies
echo "Installing Python dependencies..."
$PYTHON_CMD -m pip install --upgrade pip >/dev/null 2>&1
pip install -e . >/dev/null 2>&1
pip install uvicorn >/dev/null 2>&1

# 5. Create .env file from example if it doesn't exist
if [ ! -f ".env" ]; then
    if [ -f ".env.example" ]; then
        echo "Creating .env from .env.example (please edit with your credentials)..."
        cp .env.example .env
    else
        echo "Creating minimal .env file..."
        cat > .env << 'EOF'
# Homey Pro API configuration
HOMEY_HOST=your-homey-pro-ip
HOMEY_TOKEN=your_homey_api_token_here
HOMEY_SCHEME=http
HOMEY_PORT=4859

# MCP server configuration (LAN mode)
HOMEY_MCP_TRANSPORT=streamable-http
HOMEY_MCP_HOST=0.0.0.0
HOMEY_MCP_ADVERTISED_HOST=<your-server-ip>
HOMEY_MCP_PORT=8080
HOMEY_MCP_AUTH_MODE=none
HOMEY_MCP_AUTH_TOKEN=your_mcp_auth_token_here

# Socket.IO realtime configuration (optional)
HOMEY_REALTIME=true
EOF
    fi
fi

echo ""
echo "=== Setup complete! ==="
echo ""
echo "Next steps:"
echo "1. Edit .env with your Homey Pro credentials (HOMEY_TOKEN and HOMEY_HOST)"
echo "2. For LAN mode (recommended for Odysseus): ./run-lan.sh"
echo "3. For local stdio mode: ./run.sh"
echo ""
echo "For persistent operation, install the systemd service:"
echo "  sudo cp homey-mcp.service /etc/systemd/system/homey-mcp@.service"
echo "  sudo systemctl daemon-reload"
echo "  sudo systemctl enable --now homey-mcp@$(whoami).service"
echo ""