#!/bin/bash
# Build Archipelago backend binary for Alpine Linux

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
BACKEND_DIR="$PROJECT_ROOT/core/archipelago"
OUTPUT_DIR="$SCRIPT_DIR/../build/backend"

echo "🔨 Building Archipelago backend..."
echo "   Source: $BACKEND_DIR"
echo "   Output: $OUTPUT_DIR"
echo ""

# Check if Rust is installed
if ! command -v rustc >/dev/null 2>&1; then
    echo "❌ Rust not found. Installing..."
    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
    source "$HOME/.cargo/env"
fi

# Create output directory
mkdir -p "$OUTPUT_DIR"

# Build backend
cd "$BACKEND_DIR"
echo "📦 Compiling backend..."
cargo build --release --target x86_64-unknown-linux-musl || {
    # Try without musl target if cross-compilation not set up
    echo "⚠️  Musl target not available, building for host..."
    cargo build --release
}

# Copy binary
if [ -f "target/x86_64-unknown-linux-musl/release/archipelago" ]; then
    cp "target/x86_64-unknown-linux-musl/release/archipelago" "$OUTPUT_DIR/archipelago"
elif [ -f "target/release/archipelago" ]; then
    cp "target/release/archipelago" "$OUTPUT_DIR/archipelago"
else
    echo "❌ Binary not found after build"
    exit 1
fi

# Strip binary for smaller size
if command -v strip >/dev/null 2>&1; then
    strip "$OUTPUT_DIR/archipelago"
fi

echo "✅ Backend built: $OUTPUT_DIR/archipelago"
ls -lh "$OUTPUT_DIR/archipelago"