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

BASE_URL="${NAFNAF_BASE_URL:-${NAFNAF_API_BASE:-https://api.nafnaf.ai}}"
BASE_URL="${BASE_URL%/}"
case "$BASE_URL" in
  */v1) BASE_URL="${BASE_URL%/v1}" ;;
esac
INSTALL_DIR="${NAFNAF_INSTALL_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/nafnaf-cli}"
BIN_DIR="${NAFNAF_BIN_DIR:-$HOME/.local/bin}"

if ! command -v python3 >/dev/null 2>&1; then
  echo "nafnaf requires Python 3.9 or newer." >&2
  exit 1
fi

if ! python3 -c 'import sys; raise SystemExit(0 if sys.version_info >= (3, 9) else 1)'; then
  echo "nafnaf requires Python 3.9 or newer." >&2
  exit 1
fi

mkdir -p "$INSTALL_DIR" "$BIN_DIR"
temporary="$(mktemp "$INSTALL_DIR/nafnaf.XXXXXX")"
trap 'rm -f "$temporary"' EXIT

curl -fsSL "$BASE_URL/v1/cli/nafnaf" -o "$temporary"
python3 -c 'import pathlib, sys; compile(pathlib.Path(sys.argv[1]).read_text(encoding="utf-8"), sys.argv[1], "exec")' "$temporary"
chmod 0755 "$temporary"
mv "$temporary" "$INSTALL_DIR/nafnaf.py"
ln -sfn "$INSTALL_DIR/nafnaf.py" "$BIN_DIR/nafnaf"
trap - EXIT

echo "Installed nafnaf to $BIN_DIR/nafnaf"
case ":$PATH:" in
  *":$BIN_DIR:"*) ;;
  *) echo "Add $BIN_DIR to PATH, then run: nafnaf login" ;;
esac