import 'package:flutter/material.dart';

import 'chess_square.dart';
import 'chess_utils.dart';

class ChessBoard extends StatefulWidget {
  final bool flipped;

  const ChessBoard({required this.flipped, super.key});

  @override
  State<StatefulWidget> createState() => ChessBoardState();
}

class ChessBoardState extends State<ChessBoard> {
  var squares = <ChessSquare>[];

  ChessColor turnColor = ChessColor.white;

  @override
  Widget build(BuildContext context) {
    for (int i = 0; i < 64; i++) {
      var column = (i % 8) + 1;
      var row = (i ~/ 8) + 1;

      squares.add(
        ChessSquare(
          coordinate: ChessCoordinate(column, row),
        ),
      );
    }

    _placePieces();

    return Column(
      children: _buildBoard(widget.flipped),
    );
  }

  void _placePieces() {}

  Row _buildChessRow(int rowNo, bool flipped) {
    if (!flipped) {
      return Row(
        children: [
          for (int i = 8 * rowNo - 8; i < 8 * rowNo; i++) squares.elementAt(i)
        ],
      );
    } else {
      return Row(
        children: [
          for (int i = 8 * rowNo - 1; i >= 8 * rowNo - 8; i--)
            squares.elementAt(i)
        ],
      );
    }
  }

  List<Row> _buildBoard(bool flipped) {
    List<Row> chessBoard = <Row>[];

    if (!flipped) {
      for (int row = 8; row > 0; row--) {
        chessBoard.add(_buildChessRow(row, flipped));
      }
    } else {
      for (int row = 1; row <= 8; row++) {
        chessBoard.add(_buildChessRow(row, flipped));
      }
    }

    return chessBoard;
  }

  ChessSquare getSquareAtCoordinate(ChessCoordinate coord) {
    /* Calculate index in squares[] from column and row */
    int index = (coord.row - 1) * 8 + (coord.column - 1);

    print("getSquareAtCoordinates: index calculated to $index");

    return squares.elementAt(index);
  }
}