import 'package:aoc2020/aocbase.dart';
import 'package:aoc2020/model/readdata.dart';
// import 'dart:mirrors';

class AOC20201202 extends AOCBase {
  @override
  Future<void> a({bool test}) async {
    var filename = (test ?? false) ? classStringTest : classString;
    var mylist = await ReadData.readFileString(filename);
    var validPasswords = 0;
    for (var index = 0; index < mylist.length; index++) {
      var mysplit = mylist[index].split(' ');
      var password = mysplit[2];
      var testLetter = mysplit[1].split(':')[0];
      var rangeCount = mysplit[0].split('-');
      var minCount = int.parse(rangeCount[0]);
      var maxCount = int.parse(rangeCount[1]);
      var count = testLetter.allMatches(password).length;
      if (count >= minCount && count <= maxCount) validPasswords++;
    }
    answerA = validPasswords;
  }

  @override
  Future<void> b({bool test}) async {
    var filename = (test ?? false) ? classStringTest : classString;
    var mylist = await ReadData.readFileString(filename);
    var validPasswords = 0;
    for (var index = 0; index < mylist.length; index++) {
      var mysplit = mylist[index].split(' ');
      var password = mysplit[2];
      var testLetter = mysplit[1].split(':')[0];
      var rangeCount = mysplit[0].split('-');
      var index1 = int.parse(rangeCount[0]) - 1;
      var letter1 = password.substring(index1, index1+1) == testLetter;
      var index2 = int.parse(rangeCount[1]) - 1;
      var letter2 = password[index2] == testLetter;
      if (letter1 ^ letter2) validPasswords++;
    }
    answerB = validPasswords;
  }
}