import QtQuick 2.0
import "pages"

Item {
    id: functions

    function get_piece(i) {
        if (i === 0 || i === 7) return "r";
        else if (i === 1 || i === 6) return "n";
        else if (i === 2 || i === 5) return "b";
        else if (i === 3) return "q";
        else if (i === 4) return "k";
        else if (i >= 8 && i <= 15) return "p";
    }

    function fill() {
        for (var i = 0; i < 16; i++) {
            const piece = get_piece(i);

            board.itemAt(i).piece = "b" + piece;
            board.itemAt(-i + 63).piece = "w" + piece;
        }
        // Swap white king & queen
        board.itemAt(60).piece = [board.itemAt(59).piece, board.itemAt(59).piece = board.itemAt(60).piece][0];
    }

    property var selected: []
    function select(i) {
        if (selected.length < 2) {
            if (selected.indexOf(i) === -1) selected.push(i)
            else selected.splice(selected.indexOf(i), 1)

            if (selected.length === 2) {
                board.itemAt(selected[0]).border.width = 0;
                move(selected[0], selected[1]);
            } else {
                board.itemAt(i).border.width ^= parseInt(0.1 * board.itemAt(i).width);
            }
        }
    }

    function convert(i) {
        const first = (i % 8) + 'a'.charCodeAt(0);
        const second = (7 - parseInt(i / 8)) + '1'.charCodeAt(0);
        return String.fromCharCode(first, second);
    }

    function move(from, to) {
        console.log(convert(from) + "-" + convert(to));
        board.itemAt(to).piece = board.itemAt(from).piece;
        board.itemAt(from).piece = "";
        selected = [];
    }
}