mobile-app/lib/presentation/screens/actions/util_action.dart

import 'package:farm_tpf/custom_model/Media.dart';
import 'package:farm_tpf/utils/const_common.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';
import 'package:mime/mime.dart';

class UtilAction {
  static Future<List<Media>> cacheFiles(String existedMedias) async {
    var medias = List<Media>();
    var mediaPaths = existedMedias.split(";");
    for (int i = 0; i < mediaPaths.length; i++) {
      var tempFile = await DefaultCacheManager()
          .getSingleFile(ConstCommon.baseImageUrl + mediaPaths[i]);
      print(tempFile.path);
      var isVideo = lookupMimeType(tempFile.path) == "video/mp4";
      print("file type: " + lookupMimeType(tempFile.path));
      Media media = Media()
        ..pathFile = tempFile.path
        ..isVideo = isVideo;
      medias.add(media);
    }
    return medias;
  }

  static num convertUnit({num inputValue, String oldUnit, String newUnit}) {
    num result = inputValue;
    if (newUnit.isEmpty || newUnit == oldUnit) {
      return result;
    }
    if (oldUnit == "kg" || oldUnit == "l") {
      result = result * 1000;
    } else if (oldUnit == "g" || oldUnit == "ml") {
      result = result / 1000;
    } else if (oldUnit == "m") {
      if (newUnit == "cm") {
        result = result * 100;
      } else if (newUnit == "mm") {
        result = result * 1000;
      }
    } else if (oldUnit == "cm") {
      if (newUnit == "m") {
        result = result / 100;
      } else if (newUnit == "mm") {
        result = result * 10;
      }
    } else if (oldUnit == "mm") {
      if (newUnit == "m") {
        result = result / 1000;
      } else if (newUnit == "cm") {
        result = result / 10;
      }
    }
    return result;
  }
}