trackoffical_app/lib/appcore/map_package.dart

import 'dart:typed_data';
import 'ffi.dart' as ffi;
import 'package:trackoffical_app/model/m_position.dart';
import 'package:flutter/material.dart';

class MapPackage {

  ffi.RwLockGeoMapInfo? ptr;

  Future<void> loadMemory(Uint8List data) async{
    ptr = await ffi.api.parseMapPackage(data: data);
  }

  Future<String> get mapExt async{
    return await ffi.api.runMapPackageMapExtOpaque(mapPackage: ptr!);
  }

  Future<Size> get dstSize async{
    final r = await ffi.api.runMapPackageGetDstSizeOpaque(mapPackage: ptr!);
    return Size(r.width, r.height);
  }

  Future<Uint8List> get mapImageData async{
    return await ffi.api.runMapPackageMapImageDataOpaque(mapPackage: ptr!);
  }

  Future<void> setDstSize(Size size) async{
    final dstSize = ffi.Size(width: size.width, height: size.height);
    await ffi.api.runMapPackageSetDstSizeOpaque(mapPackage: ptr!, dstSize: dstSize);
  }

  Future<MPosition> picToPosition(Offset onPic) async{
    final r = await ffi.api.runMapPackagePicToPositionOpaque(
        mapPackage: ptr!,
        onPic: ffi.Offset(x: onPic.dx, y: onPic.dy));

    return MPosition(latitude: r.latitude, longitude: r.longitude);
  }

  Future<Offset> positionToPic(MPosition position) async{
    final r = await ffi.api.runMapPackagePositionToPicOpaque(
        mapPackage: ptr!,
        position: ffi.Position(latitude: position.latitude, longitude: position.longitude));

    return Offset(r.x, r.y);
  }
  Future<ffi.ZoneType?> isInHotZone(MPosition position) async{
    final r = await ffi.api.runMapPackageIsInHotZoneOpaque(
        mapPackage: ptr!,
        position: ffi.Position(latitude: position.latitude, longitude: position.longitude));

    return r;
  }


  void close(){
    ptr?.dispose();
    ptr = null;
  }
}