import 'package:flutter/widgets.dart';
import 'package:hgdj/tools_base/debug_log.dart';

class HtmlProParser {
  static Color? spanBg(String? value) {
    if (value == null || value.isEmpty) return null;
    try {
      final splitArr = value.toLowerCase().split(":");
      if (splitArr.length != 2 || !splitArr.last.contains("rgb")) return null;
      final rgbStr = splitArr.last.replaceAll("rgb(", "").replaceAll(");", "");
      final rgbArr = rgbStr.split(",");
      if (rgbArr.length != 3) return null;
      final r = int.tryParse(rgbArr[0]);
      final g = int.tryParse(rgbArr[1]);
      final b = int.tryParse(rgbArr[2]);
      if (r == null || g == null || b == null) return null;
      return Color.fromRGBO(r, g, b, 1);
    } catch (e) {
      debugLog(e);
    }
    return null;
  }

  static AlignmentGeometry alignment(String? value) {
    if (value == "text-align:center;") {
      return Alignment.topCenter;
    } else if (value == "text-align:right;") {
      return Alignment.topRight;
    } else {
      return Alignment.topLeft;
    }
  }

  static WrapAlignment wrapAlignment(String? value) {
    if (value == "text-align:right;") {
      return WrapAlignment.end;
    } else if (value == "text-align:center;") {
      return WrapAlignment.center;
    } else {
      return WrapAlignment.start;
    }
  }

  static double? lineHeight(String? value) {
    try {
      if (value?.contains("line-height:") == true) {
        final sizeStr =
            value!.replaceAll("line-height:", "").replaceAll(";", "");
        return double.tryParse(sizeStr);
      }
    } catch (e) {
      debugLog(e);
    }
    return null;
  }
}

class HexColor extends Color {
  static int _getColorFromHex(String hexColor) {
    try {
      hexColor = hexColor.toUpperCase().replaceAll("#", "");
      if (hexColor.length == 6) {
        hexColor = "FF$hexColor";
      }
      return int.parse(hexColor, radix: 16);
    } catch (e) {
      return 0xffffffff;
    }
  }

  HexColor(final String hexColor) : super(_getColorFromHex(hexColor));
}