#!/bin/bash
set -euo pipefail
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"

# Create output directory
mkdir -p "${SCRIPT_DIR}/output"
PREV_DIR=$(pwd)
cd "${SCRIPT_DIR}"
trap 'cd "${PREV_DIR}"' EXIT

function build_arch() {
    local arch=$1

    if [ ! -f "${HOME}/.musl-cross/${arch}-linux-musl-cross/bin/${arch}-linux-musl-c++" ]; then
        echo "Musl cross compiler for ${arch} not found. Please run install_build_prerequisites.sh first."
        exit 1
    fi

    CMAKE_BUILD_TYPE=Release
    CC="${HOME}/.musl-cross/${arch}-linux-musl-cross/bin/${arch}-linux-musl-gcc"
    CXX="${HOME}/.musl-cross/${arch}-linux-musl-cross/bin/${arch}-linux-musl-g++"

    BUILDDIR="${SCRIPT_DIR}/build/${arch}"
    mkdir -p "${BUILDDIR}"  

    cmake -B "${BUILDDIR}" -G Ninja -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}" -DCMAKE_C_COMPILER="${CC}" -DCMAKE_CXX_COMPILER="${CXX}"
    cmake --build "${BUILDDIR}"

    upx "${BUILDDIR}/dropshell"
    cp "${BUILDDIR}/dropshell" "${SCRIPT_DIR}/output/dropshell.${arch}"
}

build_arch x86_64
build_arch aarch64

echo "Static binaries have been created:"
ls -la output