#!/usr/bin/env sh
set -eu

BASE_URL="https://get.muntim.ru"
BIN_NAME="muntim-maui"

os="$(uname -s)"
arch="$(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|amd64) platform_arch="amd64" ;;
  arm64|aarch64) platform_arch="arm64" ;;
  *)
    echo "unsupported architecture: $arch" >&2
    exit 1
    ;;
esac

tmp_dir="$(mktemp -d)"
trap 'rm -rf "$tmp_dir"' EXIT

download_url="$BASE_URL/downloads/${BIN_NAME}-${platform_os}-${platform_arch}"
target_path="$tmp_dir/$BIN_NAME"

if command -v curl >/dev/null 2>&1; then
  curl -fsSL "$download_url" -o "$target_path"
elif command -v wget >/dev/null 2>&1; then
  wget -qO "$target_path" "$download_url"
else
  echo "curl or wget is required" >&2
  exit 1
fi

chmod +x "$target_path"

install_dir="${HOME}/.local/bin"
needs_path_hint=0

if [ -w /usr/local/bin ]; then
  install_dir="/usr/local/bin"
elif command -v sudo >/dev/null 2>&1; then
  sudo install -m 0755 "$target_path" "/usr/local/bin/$BIN_NAME"
  echo "installed to /usr/local/bin/$BIN_NAME"
  exit 0
else
  mkdir -p "$install_dir"
  needs_path_hint=1
fi

install -m 0755 "$target_path" "$install_dir/$BIN_NAME"
echo "installed to $install_dir/$BIN_NAME"

case ":$PATH:" in
  *":$install_dir:"*) ;;
  *)
    if [ "$needs_path_hint" -eq 1 ]; then
      echo "add to PATH: export PATH=\"$install_dir:\$PATH\""
    fi
    ;;
esac