import 'package:flutter/material.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:latlong2/latlong.dart';

import 'fireMarkType.dart';
import 'fireMarkerIcon.dart';

/// Create a Marker with custom positioning for fires and other map objects
Marker FireMarker(
  LatLng pos,
  FireMarkType type, [
  VoidCallback? onTap,
]) {
  // Calculate offset based on marker type
  // Anchor point for center of marker: (40, calculated_y)
  final Offset offset = _getAnchorOffset(type);

  return Marker(
    point: pos,
    width: 80.0,
    height: 80.0,
    alignment: Alignment.center,
    child: GestureDetector(
      onTap: onTap,
      child: FireMarkerIcon(type),
    ),
  );
}

/// Get the anchor offset based on marker type
Offset _getAnchorOffset(FireMarkType type) {
  switch (type) {
    case FireMarkType.position:
      return Offset(40.0, 20.0);
    case FireMarkType.fire:
      return Offset(40.0, 24.0);
    case FireMarkType.pixel:
      // Auto-calculate based on marker size
      return Offset(40.0, 40.0);
    case FireMarkType.falsePos:
    case FireMarkType.industry:
      return Offset(40.0, 35.0);
    default:
      return Offset(40.0, 40.0);
  }
}