#!/usr/bin/env bash
set -euo pipefail

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

echo "Create a new app from template"
echo ""
echo "Available templates:"
echo "  1) node-api    - Express API service"
echo "  2) nextjs-app  - Next.js application"
echo ""
read -rp "Select template (1-2): " choice

case $choice in
  1) template="node-api" ;;
  2) template="nextjs-app" ;;
  *) echo "Invalid choice"; exit 1 ;;
esac

read -rp "App name (kebab-case): " app_name

if [[ ! "$app_name" =~ ^[a-z][a-z0-9-]*$ ]]; then
  echo "Error: App name must be kebab-case (lowercase, hyphens only)"
  exit 1
fi

if [[ -d "$ROOT_DIR/apps/$app_name" ]]; then
  echo "Error: apps/$app_name already exists"
  exit 1
fi

echo ""
echo "Creating $app_name from $template template..."

if command -v copier &>/dev/null; then
  copier copy "$ROOT_DIR/templates/$template" "$ROOT_DIR/apps/" --data "app_name=$app_name"
else
  echo "Warning: copier not installed. Install with: pipx install copier"
  echo "Falling back to manual copy..."
  mkdir -p "$ROOT_DIR/apps/$app_name"
  echo "Created apps/$app_name/ — populate manually from templates/$template/"
fi

echo ""
echo "Done! Next steps:"
echo "  cd apps/$app_name"
echo "  pnpm install"
echo "  pnpm dev"