import 'dart:ui';

extension IntExtensions on int? {
  String toFormattedDate(String format) {
    if (this == null) {
      return '';
    }
    DateTime dateTime = DateTime.fromMillisecondsSinceEpoch(this! * 1000);
    String formattedDate = format
        .replaceAll('yyyy', dateTime.year.toString())
        .replaceAll('MM', dateTime.month.toString().padLeft(2, '0'))
        .replaceAll('dd', dateTime.day.toString().padLeft(2, '0'))
        .replaceAll('HH', dateTime.hour.toString().padLeft(2, '0'))
        .replaceAll('mm', dateTime.minute.toString().padLeft(2, '0'))
        .replaceAll('ss', dateTime.second.toString().padLeft(2, '0'));
    return formattedDate;
  }
}

extension HexColor on String {
  Color get color => toColor();

  Color toColor() {
    String hex = replaceAll('#', '');
    if (hex.length == 6) {
      hex = 'FF$hex';
    }
    return Color(int.parse(hex, radix: 16));
  }
}

extension BoolExtension on bool? {
  bool get isTrue => this == true;

  bool get isFalse => this == false;
}

extension StringExtension on String? {
  String get orEmpty => this ?? '';
}

extension DurationExtension on double? {
  String toFormattedDuration() {
    if (this == null) return '';
    int totalSeconds = (this!).round();
    if (totalSeconds < 60) {
      return '${totalSeconds}s';
    } else if (totalSeconds < 3600) {
      int minutes = totalSeconds ~/ 60;
      int seconds = totalSeconds % 60;
      return '${minutes}m${seconds}s';
    } else {
      int hours = totalSeconds ~/ 3600;
      int minutes = (totalSeconds % 3600) ~/ 60;
      int seconds = totalSeconds % 60;
      return '${hours}h${minutes}m${seconds}s';
    }
  }
}

extension StringExtensions on String {
  String replacePlaceholders(List<dynamic> replacements) {
    var result = this;
    for (var replacement in replacements) {
      if (replacement is String) {
        result = result.replaceFirst('%s', replacement);
      } else if (replacement is int) {
        result = result.replaceFirst('%d', replacement.toString());
      }
    }
    return result;
  }
}

extension FileSizeExtension on int {
  String toReadableSize() {
    String format(double value) {
      String result = value.toStringAsFixed(2);
      result = result.replaceAll(RegExp(r'0*$'), ''); // 去除多余的零
      result = result.replaceAll(RegExp(r'\.$'), ''); // 如果最后是小数点，则去除
      return result;
    }

    if (this < 1024) {
      return '$this B';
    } else if (this < 1024 * 1024) {
      return '${format(this / 1024)} KB';
    } else if (this < 1024 * 1024 * 1024) {
      return '${format(this / (1024 * 1024))} MB';
    } else {
      return '${format(this / (1024 * 1024 * 1024))} GB';
    }
  }
}

extension DurationFormatting on Duration {
  String toFormattedString() {
    String twoDigits(int n) => n.toString().padLeft(2, '0');
    String hours = twoDigits(inHours);
    String minutes = twoDigits(inMinutes.remainder(60));
    String seconds = twoDigits(inSeconds.remainder(60));
    return [if (inHours > 0) hours, minutes, seconds].join(':');
  }
}

extension DoubleExtension on double {
  String toFormattedString(int fractionDigits) {
    if (this == toInt()) {
      return toInt().toString();
    } else {
      return toStringAsFixed(fractionDigits);
    }
  }

  double toFormattedDouble(int fractionDigits) {
    return double.parse(toStringAsFixed(fractionDigits));
  }
}