#!/bin/bash
set -euo pipefail

# Build CSS using Tailwind CSS standalone CLI
# For local development, run:
#   ./build-css.sh        # one-off build
#   ./build-css.sh --watch  # watch mode

version="v3.4.17"
os="$(uname -s)"
arch="$(uname -m)"

case "$os" in
    Linux*)     platform="linux";;
    Darwin*)    platform="macos";;
    *)          echo "Unsupported OS: $os"; exit 1;;
esac

case "$arch" in
    x86_64)     arch="x64";;
    arm64)      arch="arm64";;
    aarch64)    arch="arm64";;
    *)          echo "Unsupported architecture: $arch"; exit 1;;
esac

binary="tailwindcss-${platform}-${arch}"
url="https://github.com/tailwindlabs/tailwindcss/releases/download/${version}/${binary}"

if [ ! -f "tailwindcss" ]; then
    echo "Downloading Tailwind CSS standalone CLI (${version} ${platform}/${arch})..."
    curl -sL "$url" -o tailwindcss
    chmod +x tailwindcss
fi

if [ "${1:-}" == "--watch" ]; then
    echo "Building CSS in watch mode..."
    ./tailwindcss -i ./style-input.css -o ./style.css --watch
else
    echo "Building CSS..."
    ./tailwindcss -i ./style-input.css -o ./style.css --minify
fi