import 'package:libac_flutter/nbt/Stream.dart';

class Time {
  int hours;
  int minutes;
  int seconds;

  Time({required this.hours, required this.minutes, required this.seconds}) {
    autofix();
  }

  int getTotalSeconds() {
    int current = 0;
    current += seconds;

    current += (minutes * 60); // 60 seconds in a minute

    current += (hours * 60 * 60); // 60 seconds, 60 minutes in an hour

    return current;
  }

  void add(Time time) {
    seconds += time.getTotalSeconds();
    autofix();
  }

  void subtract(Time time) {
    int sec = getTotalSeconds();
    sec -= time.getTotalSeconds();

    apply(sec);
  }

  void tickDown() {
    int sec = getTotalSeconds();
    sec--;

    apply(sec);
  }

  void tickUp() {
    int sec = getTotalSeconds();
    sec++;

    apply(sec);
  }

  void apply(int seconds) {
    hours = 0;
    minutes = 0;
    this.seconds = seconds;
    if (this.seconds < 0) this.seconds = 0;

    autofix();
  }

  void autofix() {
    int totalSeconds = getTotalSeconds();
    if (totalSeconds < 0) totalSeconds = 0;

    int one_hour = (1 * 60 * 60);
    int one_minute = (1 * 60);

    int hours = (totalSeconds / 60 / 60).round();
    totalSeconds -= (hours * one_hour);

    int minutes = (totalSeconds / 60).round();
    totalSeconds -= (minutes * one_minute);

    int seconds = totalSeconds;

    this.hours = hours;
    this.minutes = minutes;
    this.seconds = seconds;
  }

  factory Time.fromNotation(String notation) {
    int hours = 0;
    int minutes = 0;
    int seconds = 0;

    List<String> current = [];
    String val = notation;
    if (val.indexOf('h') == -1) {
      hours = 0;
    } else {
      current = val.split('h');
      hours = int.parse(current[0]);

      if (current.length == 2)
        val = current[1];
      else
        val = "";
    }

    if (val.indexOf('m') == -1) {
      minutes = 0;
    } else {
      current = val.split('m');
      minutes = int.parse(current[0]);

      if (current.length == 2)
        val = current[1];
      else
        val = "";
    }

    if (val.indexOf('s') == -1) {
      seconds = 0;
    } else {
      current = val.split('s');
      seconds = int.parse(current[0]);

      if (current.length == 2)
        val = current[1];
      else
        val = "";
    }

    if (val != "") {
      seconds += int.parse(val);
    }

    return Time(hours: hours, minutes: minutes, seconds: seconds);
  }

  @override
  String toString() {
    StringBuilder builder = StringBuilder();
    if (hours > 0) builder.append("${hours}h");
    if (minutes > 0) builder.append("${minutes}m");
    if (seconds > 0) builder.append("${seconds}s");

    return "${builder}";
  }
}