#!/usr/bin/env bash
# Copies flutter.js.map next to build/web/flutter_bootstrap.js so Firefox/
# Chrome DevTools stop 404ing on "flutter.js.map" after `flutter build web`.
set -euo pipefail

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
OUT_DIR="${1:-$ROOT/build/web}"

if [ ! -d "$OUT_DIR" ]; then
  echo "copy_flutter_js_source_map: output dir not found: $OUT_DIR" >&2
  exit 1
fi

if ! command -v flutter >/dev/null 2>&1; then
  echo "copy_flutter_js_source_map: flutter not on PATH" >&2
  exit 1
fi

FLUTTER_BIN="$(command -v flutter)"
SDK_ROOT="$(cd "$(dirname "$FLUTTER_BIN")/.." && pwd)"
MAP_SRC="$SDK_ROOT/bin/cache/flutter_web_sdk/flutter_js/flutter.js.map"
MAP_DST="$OUT_DIR/flutter.js.map"

if [ ! -f "$MAP_SRC" ]; then
  echo "copy_flutter_js_source_map: source map missing at $MAP_SRC" >&2
  exit 1
fi

cp "$MAP_SRC" "$MAP_DST"
echo "copy_flutter_js_source_map: installed $MAP_DST"