single_page_demo

import 'dart:async';
import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

String formatTime(int milliseconds) {
  var secs = milliseconds ~/ 1000;
  var hours = (secs ~/ 3600).toString().padLeft(2, '0');
  var minutes = ((secs % 3600) ~/ 60).toString().padLeft(2, '0');
  var seconds = (secs % 60).toString().padLeft(2, '0');

  return "$hours:$minutes:$seconds";
}

class Event {
  String player;
  String event;
  dynamic time;
  Event(this.time, this.event, this.player);
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Spectracker Demo',
      home: StopwatchPage(),
      debugShowCheckedModeBanner: false,
    );
  }
}

class StopwatchPage extends StatefulWidget {
  @override
  _StopwatchPageState createState() => _StopwatchPageState();
}

class _StopwatchPageState extends State<StopwatchPage> {
  late Stopwatch _stopwatch;
  late Timer _timer;

  //Define possibilities for the eventFinder to match to
  List<String> possiblePlayers = ['Home', 'Away'];
  List<String> possibleEvents = ['Throw In', 'Goal'];

  var possOccur = Map<String, int>();
  bool homeP = true;
  String currentP = "start Game";

  void changeP() {
    if (homeP) {
      homeP = false;
      //print(homeP);
      currentP = 'Away';
    } else {
      homeP = true;
      //print(homeP);
      currentP = 'Home';
    }
    print(homeP);
  }

  bool enabled = false;

  void startGame() {
    Stopwatch().start();
    setState(() {
      enabled = true;
    });
    String event = 'Game Start';
    String player = 'CREATOR';
    int time = _stopwatch.elapsedMilliseconds;
    new Event(time, event, player);
    times.add(time);
    events.add(event);
    players.add(player);
    handleStartStop.call();
    changeP.call(); 
  }

  //makes a list of all each event and how many times it occurs
  void statsList() {
    for (var element in possOccur.entries) {
      print(element);
    }
  }

//makes map values for each possible event kind (with team and type), calls the event finder with each possible thing as the input.
  void possiblePairs() {
    int numPossPlayers = possiblePlayers.length;
    int numPossEvents = possibleEvents.length;
    for (var i = 0; i < numPossPlayers; i++) {
      for (var j = 0; j < numPossEvents; j++) {
        possOccur['${possiblePlayers[i]} : ${possibleEvents[j]}'] = 0;
        eventFinder.call('${possiblePlayers[i]}', '${possibleEvents[j]}');
        //print('____');
      }
    }
  }

//event finder inputs a player:event and looks through all the other things
  void eventFinder(playerDesired, eventDesired) {
    int allEvents = events
        .length; //how many pairs of events and players there are in the log list
    for (var n = 0; n < allEvents; n++) {
      //cycles through events in the log list
      if ("${players[n]} : ${events[n]}"
          .contains("$playerDesired : $eventDesired")) {
        possOccur.update(
            "$playerDesired : $eventDesired", (dynamic val) => ++val);
        //print(possOccur);
      } else {}
    }
  }

  List<String> players = [];
  List<int> times = [];
  List<String> events = [];

  @override
  void initState() {
    super.initState();
    _stopwatch = Stopwatch();
    _timer = new Timer.periodic(new Duration(milliseconds: 30), (timer) {
      setState(() {});
    });
  }

  @override
  void dispose() {
    _timer.cancel();
    super.dispose();
  }

  void handleStartStop() {
    if (_stopwatch.isRunning) {
      _stopwatch.stop();
    } else {
      _stopwatch.start();
    }
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    var throwIn;
    if (enabled) {
      throwIn = () {
        String event = 'Throw In';
        String player = '$currentP';
        int time = _stopwatch.elapsedMilliseconds;
        new Event(time, event, player);
        times.add(time);
        events.add(event);
        players.add(player);
      };
    }

    var goal;
    if (enabled) {
      goal = () {
        String event = 'Goal';
        String player = "$currentP";
        int time = _stopwatch.elapsedMilliseconds;
        new Event(time, event, player);
        times.add(time);
        events.add(event);
        players.add(player);
      };
    }

    var endGame;
    if (enabled) {
      endGame = () {
        String event = 'Game End';
        String player = 'CREATOR';
        int time = _stopwatch.elapsedMilliseconds;

        new Event(time, event, player);
        times.add(time);
        events.add(event);
        players.add(player);
        handleStartStop.call();
      };
    }

    void printItemX(itemX) {
      String niceTime = "${formatTime(times[itemX])}";
      //String ztime = "${times[itemX].substring(11,19)}";
      //var ptime = DateTime.parse(times[itemX]); // from string to DateTime.
      print("$niceTime: ${events[itemX]}, ${players[itemX]}");
    }

    //void pTime(DateTime.()){}

    var printLog;
    if (enabled) {
      printLog = () {
        int listLength = events.length;
        for (var n = 0; n < listLength; n++) {
          printItemX(n);
        }
      };
    }

    var makeStats;
    if (enabled) {
      makeStats = () {
        possiblePairs.call();
        print('____________');
        statsList.call();
      };
    }

    var gameElapsed;
    if (enabled) {
      gameElapsed = () {
        //var first = DateTime.parse(times.last);
        int last = times.last;
        // var difference = last.difference(first);
        var difference = formatTime(-1 * (0 - last));
        print('Game Length: $difference');
      };
    }

    return Scaffold(
      appBar: AppBar(title: Text('Spectracker Demo')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Card(child: Text('$homeP, $currentP')),
            Text(formatTime(_stopwatch.elapsedMilliseconds),
                style: TextStyle(fontSize: 48.0)),
            SizedBox(width: 20, height: 20),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                ElevatedButton(
                  child: Text('Start'),
                  onPressed: (_stopwatch.isRunning ? endGame : startGame),
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.green), //start
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
                SizedBox(width: 20, height: 20),
                ElevatedButton(
                  child: Text('Finish!'),
                  onPressed: endGame,
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.red[400]),
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
              ],
            ),
            SizedBox(width: 20, height: 20),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                SizedBox(width: 20, height: 20),
                ElevatedButton(
                  child: Text('change possession'),
                  onPressed: changeP,
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.purple), //throw in
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
                SizedBox(width: 20, height: 20),
                ElevatedButton(
                  child: Text('Throw in'),
                  onPressed: throwIn,
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.blue), //throw in
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
                SizedBox(width: 20, height: 20),
                ElevatedButton(
                  onPressed: goal, //the variable
                  child: Text('goal'),
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.blue), //goal
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
              ],
            ),
            SizedBox(width: 20, height: 40),
            Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                ElevatedButton(
                  child: Text('print log'),
                  onPressed: printLog,
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.amber[300]), //print
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
                SizedBox(width: 20, height: 20),
                ElevatedButton(
                  child: Text('print stats'),
                  onPressed: makeStats,
                  style: ButtonStyle(
                      backgroundColor:
                          MaterialStateProperty.all(Colors.amber[300]), //print
                      padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                      textStyle:
                          MaterialStateProperty.all(TextStyle(fontSize: 15))),
                ),
              ],
            ),
            SizedBox(width: 20, height: 20),
            ElevatedButton(
              child: Text('game duration'),
              onPressed: gameElapsed,
              style: ButtonStyle(
                  backgroundColor:
                      MaterialStateProperty.all(Colors.grey), //start
                  padding: MaterialStateProperty.all(EdgeInsets.all(20)),
                  textStyle:
                      MaterialStateProperty.all(TextStyle(fontSize: 15))),
            ),
          ],
        ),
      ),
    );
  }
}