import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:mchess/chess_bloc/chess_bloc.dart';
import 'package:mchess/chess_bloc/chess_position.dart';
import 'package:mchess/utils/chess_utils.dart';

class MoveHistory extends StatefulWidget {
  const MoveHistory({super.key});

  @override
  State<MoveHistory> createState() => _MoveHistoryState();
}

class _MoveHistoryState extends State<MoveHistory> {
  late List<String> entries;

  @override
  void initState() {
    entries = [];
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return BlocListener<ChessBloc, ChessBoardState>(
      listener: (context, state) {
        List<String> newEntries = [];
        var positionManager = ChessPositionManager.getInstance();
        var allMoves = positionManager.allMoves;

        for (ChessMove move in allMoves) {
          var movedPiece = positionManager.getPieceAt(move.to);
          var char = pieceCharacter[ChessPieceAssetKey(
              pieceClass: movedPiece!.pieceClass,
              color: movedPiece.color.getOpposite())];

          if (movedPiece.color == ChessColor.white) {
            newEntries.add("$char ${move.to.toAlphabetical()}");
          } else {
            newEntries.last =
                "${newEntries.last}\t\t$char${move.to.toAlphabetical()}";
          }
        }
        setState(() {
          entries = newEntries;
        });
      },
      child: ListView(children: [
        for (var entry in entries) Text(entry),
      ]),
    );
  }
}