# shellcheck shell=bash

# Detect platform (OS and architecture)

os=$(uname -s | tr '[:upper:]' '[:lower:]')
arch=$(uname -m)

case "$os" in
    linux) platform_os=linux ;;
    darwin) platform_os=darwin ;;
    *) echo "Unsupported OS: $os" >&2; exit 1 ;;
esac

case "$arch" in
    x86_64) platform_arch=x86_64 ;;
    *) echo "Unsupported architecture: $arch" >&2; exit 1 ;;
esac

platform="${platform_os}_${platform_arch}"

# Platform-specific checksum command
if [ "$platform_os" = "darwin" ]; then
    sha256_check() { shasum -a 256 -c -; }
else
    sha256_check() { sha256sum -c -; }
fi