#!/bin/bash
# Setup Alpine build environment
# Installs dependencies and prepares build environment

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

echo "🔧 Setting up Alpine build environment..."
echo ""

# Detect OS
if [[ "$OSTYPE" == "darwin"* ]]; then
    echo "🍎 macOS detected - Docker will be used"
    echo "   Make sure Docker Desktop is installed and running"
    exit 0
elif [ -f /etc/alpine-release ]; then
    echo "🏔️  Alpine Linux detected - installing native tools..."
    
    # Install build dependencies
    apk add --no-cache \
        bash \
        git \
        alpine-sdk \
        abuild \
        alpine-conf \
        syslinux \
        xorriso \
        squashfs-tools \
        grub \
        grub-efi \
        mtools \
        dosfstools \
        e2fsprogs \
        rsync \
        curl \
        wget \
        ca-certificates || {
        echo "❌ Failed to install dependencies"
        exit 1
    }
    
    # Setup abuild keys
    if [ ! -f ~/.abuild/abuild.conf ]; then
        echo "🔑 Generating abuild keys..."
        abuild-keygen -a -n
    fi
    
    echo "✅ Alpine build environment ready!"
elif [[ "$OSTYPE" == "linux-gnu"* ]]; then
    echo "🐧 Linux detected (not Alpine) - Docker will be used"
    echo "   Install Docker: https://docs.docker.com/get-docker/"
    exit 0
else
    echo "❌ Unsupported OS: $OSTYPE"
    exit 1
fi