#!/usr/bin/env bash
set -euo pipefail

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

BUILD_DIR="${BUILD_DIR:-$SCRIPT_DIR/build_macos}"
BUILD_TYPE="${BUILD_TYPE:-Release}"
export CMAKE_BUILD_PARALLEL_LEVEL="${CMAKE_BUILD_PARALLEL_LEVEL:-2}"

if [[ "$(uname -s)" != Darwin ]]; then
    echo "ERROR: build_macos.sh requires macOS and the Apple SDK." >&2
    exit 1
fi

for tool in cmake ninja xcrun "${CC:-clang}" "${CXX:-clang++}"; do
    if ! command -v "$tool" >/dev/null 2>&1; then
        echo "ERROR: $tool not found. See README.md prerequisites." >&2
        exit 1
    fi
done
xcrun --sdk macosx --show-sdk-path

OSX_OPTIONS=("-DCMAKE_BUILD_TYPE=$BUILD_TYPE")
if [[ -n "${CMAKE_OSX_ARCHITECTURES:-}" ]]; then
    OSX_OPTIONS+=("-DCMAKE_OSX_ARCHITECTURES=$CMAKE_OSX_ARCHITECTURES")
fi
if [[ -n "${CMAKE_OSX_DEPLOYMENT_TARGET:-}" ]]; then
    OSX_OPTIONS+=("-DCMAKE_OSX_DEPLOYMENT_TARGET=$CMAKE_OSX_DEPLOYMENT_TARGET")
fi

echo "Configuring macOS production targets in $BUILD_DIR ($BUILD_TYPE)..."
cmake -S "$SCRIPT_DIR" -B "$BUILD_DIR" -G Ninja \
    "${OSX_OPTIONS[@]}" \
    -DSERUMALT_BUILD_PLUGIN=ON \
    -DSERUMALT_BUILD_TESTS=OFF

echo "Building macOS VST3, AU, and standalone..."
cmake --build "$BUILD_DIR" --config "$BUILD_TYPE" --target SerumAlt_VST3 SerumAlt_AU SerumAlt_Standalone

echo "Done. macOS artifacts: $BUILD_DIR/SerumAlt_artefacts/$BUILD_TYPE"