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

SCRIPT_DIR="$(cd -- "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_DIR="$(cd -- "$SCRIPT_DIR/../.." && pwd)"
IDEA_DIR="$PROJECT_DIR/.idea"
LIBRARIES_DIR="$IDEA_DIR/libraries"
FLUTTER_SDK="$PROJECT_DIR/.devbox/nix/profile/default"
DART_SDK="$FLUTTER_SDK/bin/cache/dart-sdk"

mkdir -p "$IDEA_DIR"
if [ ! -x "$FLUTTER_SDK/bin/flutter" ]; then
  echo "Flutter not found at $FLUTTER_SDK/bin/flutter. Run devbox install to download it." >&2
  exit 1
fi

if [ ! -d "$DART_SDK" ]; then
  echo "Dart SDK not found at $DART_SDK. Run flutter doctor to populate the cache." >&2
  exit 1
fi

mkdir -p "$LIBRARIES_DIR"

cat > "$IDEA_DIR/flutter.xml" <<'EOF'
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="FlutterSdkSettings">
    <option name="FLUTTER_SDK_PATH" value="$PROJECT_DIR$/.devbox/nix/profile/default" />
  </component>
</project>
EOF

cat > "$IDEA_DIR/dart.xml" <<'EOF'
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="DartSdkGlobalLibSettings">
    <option name="dartSdkPath" value="$PROJECT_DIR$/.devbox/nix/profile/default/bin/cache/dart-sdk" />
  </component>
</project>
EOF

dart_libs=$(find "$DART_SDK/lib" -maxdepth 1 -mindepth 1 -type d -printf '%f\n' | sort)
tmp_file=$(mktemp)
{
  echo '<component name="libraryTable">'
  echo '  <library name="Dart SDK">'
  echo '    <CLASSES>'
  for lib in $dart_libs; do
    printf '      <root url="file://$PROJECT_DIR$/.devbox/nix/profile/default/bin/cache/dart-sdk/lib/%s" />\n' "$lib"
  done
  echo '    </CLASSES>'
  echo '    <JAVADOC />'
  echo '    <SOURCES />'
  echo '  </library>'
  echo '</component>'
} > "$tmp_file"
mv "$tmp_file" "$LIBRARIES_DIR/Dart_SDK.xml"

echo "Android Studio configured. Flutter SDK: $FLUTTER_SDK"