setup

#!/bin/bash
set -euo pipefail

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

echo ""
echo "  Setting up Blockdown..."
echo ""

# Detect architecture
ARCH=$(uname -m)
case "$ARCH" in
    arm64)  GUM_ARCH="arm64" ;;
    x86_64) GUM_ARCH="x86_64" ;;
    *)
        echo "  Unsupported architecture: $ARCH"
        exit 1
        ;;
esac

BIN_DIR="${SCRIPT_DIR}/bin"
GUM_VERSION="0.17.0"

mkdir -p "$BIN_DIR"

# Download gum if not already present
if [[ -x "${BIN_DIR}/gum" ]]; then
    echo "  ✓ gum already installed"
else
    GUM_URL="https://github.com/charmbracelet/gum/releases/download/v${GUM_VERSION}/gum_${GUM_VERSION}_Darwin_${GUM_ARCH}.tar.gz"
    echo "  Downloading gum v${GUM_VERSION} for ${GUM_ARCH}..."

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

    if curl -sL --fail "$GUM_URL" -o "${TEMP_DIR}/gum.tar.gz"; then
        tar -xzf "${TEMP_DIR}/gum.tar.gz" -C "$TEMP_DIR"
        cp "${TEMP_DIR}/gum_${GUM_VERSION}_Darwin_${GUM_ARCH}/gum" "${BIN_DIR}/gum"
        chmod +x "${BIN_DIR}/gum"
        echo "  ✓ gum installed to bin/gum"
    else
        echo "  ✗ Failed to download gum. Check your internet connection."
        echo "  You can still run blockdown — it will use basic text menus."
    fi

    rm -rf "$TEMP_DIR"
    trap - EXIT
fi

chmod +x "${SCRIPT_DIR}/blockdown"
echo "  ✓ blockdown is ready"

echo ""
echo "  Done! Run:  ./blockdown --dry-run    (to test without changes)"
echo "              ./blockdown              (for real; asks for sudo when needed)"
echo ""