ConvertToEthiopic function

String? ConvertToEthiopic(int num)

Implementation

String? ConvertToEthiopic(int num) {
  if (num.runtimeType != int) {
    throw new TypeError();
  }

  if (num < 1) {
    throw new EthiopicNumberException(
        "Zero (0) and Negative numbers doesn't exsit in Ethiopic numerals");
  }

  if (num > 0 && num <= 10) {
    return _convert_1_2_10_to_ethiopic(num);
  }

  if (num > 10 && num <= 100) {
    return _convert_11_2_100_to_ethiopic(num);
  }

  if (num > 100 && num <= 1000) {
    return _convert_101_2_1000_to_ethiopic(num);
  }

  if (num > 1000 && num <= 10000) {
    var result = _divide(100, num);
    if (result[1] == 0) {
      return result[0] < 11
          ? "${geezNumbers[result[0]]}${geezNumbers[100]}"
          : "${_convert_11_2_100_to_ethiopic(result[0])}${geezNumbers[100]}";
    }
    var left = _convert_11_2_100_to_ethiopic(result[0]);
    var right = result[1] < 11
        ? _convert_1_2_10_to_ethiopic(result[1])
        : _convert_11_2_100_to_ethiopic(result[1]);

    return "${left}${geezNumbers[100]}${right}";
  }
}