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

# Wrapper to run scripts/play.fun without requiring 'fun' on PATH.
# Honors FUN_BIN if provided, otherwise auto-detects a local build, then PATH.

ROOT="$(cd "$(dirname "$0")"/.. && pwd)"
PLAY_FUN="$ROOT/scripts/play.fun"

BIN="${FUN_BIN:-}"
if [[ -z "$BIN" ]]; then
  # Try common local build locations
  for cand in \
    "$ROOT/build/fun" \
    "$ROOT/build_debug/fun" \
    "$ROOT/build_release/fun" \
    "$ROOT/fun"; do
    if [[ -x "$cand" ]]; then
      BIN="$cand"
      break
    fi
  done
fi

if [[ -z "$BIN" ]]; then
  if command -v fun >/dev/null 2>&1; then
    BIN="fun"
  else
    echo "error: fun interpreter not found. Set FUN_BIN or build it (e.g., CMake)." >&2
    exit 2
  fi
fi

# Ensure stdlib is discoverable unless user overrides
if [[ -z "${FUN_LIB_DIR:-}" ]]; then
  export FUN_LIB_DIR="$ROOT/lib"
fi

exec "$BIN" "$PLAY_FUN" "$@"