// attach the .equals method to Array's prototype to call it on any array
Array.prototype.equals = function (array) {
    /*
     Dizileri eşitliğini kontrol etmek.
     Çünkü [1,1] == [1,1] false dönüyor.
     -----------------------------------------
    KAYNAK: http://stackoverflow.com/a/14853974/1766716
     KULLANIM
        [1, 2, [3, 4]].equals([1, 2, [3, 2]]) === false;
        [1, "2,3"].equals([1, 2, 3]) === false;
        [1, 2, [3, 4]].equals([1, 2, [3, 4]]) === true;
        [1, 2, 1, 2].equals([1, 2, 1, 2]) === true;
    */
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time 
    if (this.length != array.length)
        return false;

    for (var i = 0, l=this.length; i < l; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].equals(array[i]))
                return false;       
        }           
        else if (this[i] != array[i]) { 
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;   
        }           
    }       
    return true;
}  


// OBJECTS >>

function getCell(i, j){
		return cells[ i* 8 + j];
}
function Cell(i, j) {
    this.i = i;
    this.j = j;
    this.id = 'cell' + this.i + this.j;

    this.oddEven = ((this.i + this.j) % 2 == 0 ? 'odd' : 'even');
    this.dom = function() {
        return $('#' + this.id);
    };

    this.highlight = function() {
        $(this.dom()).addClass( classMoves );
    };
    this.clean = function() {
        $(this.dom()).removeClass( classMoves  );
    };
};


var Tas = function(ad, renk) {
    this.ad = ad;
    this.renk = (renk === undefined || [0, 1].indexOf(renk) == -1 ? 0 : renk); // 0 : (Default) Siyah | 1 : Beyaz
    this.movesTo = [];
    this.isvalid = function(i, j, x, y) {
        return ( ! [i, j].equals([x, y])) && (0 <= i < 8) && (0 <= j < 8)
    }
    this.moves = function(x, y) {
				this.movesTo = [];
        this.findMoves(x, y);
        this.movesHightlight();
    };


    this.findMoves = function() {
        alert('YAKINDA...');
    };

    this.movesHightlight = function() {
        this.movesTo.forEach(function(cell, index) {
            cell.highlight()
        });
    }
};

var Piyon = function(renk) {
    this.adet = 8;
    Tas.call(this, 'Piyon', renk)
    this.findMoves = function(x, y) {
        var moveY = (this.renk == 1 ? +1 : -1); // Beyaz ise + yön, siyah ise - yön.
        x += moveY;
        switch (x) { // satırdaysa bir şey dönme.
            case 8:
                this.movesTo = [];
                break;
            default:
                this.movesTo.push(new Cell(x, y));
                break;
        };
    };
};


var Kale = function(renk) {
    this.adet = 2;
    Tas.call(this, 'Kale', renk);

    this.findMoves = function(x, y) {
        for (var i = 0; i <= 7; i++) {
            if (this.isvalid(i, y, x, y)) {;
                this.movesTo.push(new Cell(i, y));
            }
        }
        for (var j = 0; j <= 7; j++) {
            if (this.isvalid(x, j, x, y)) {;
                this.movesTo.push(new Cell(x, j));
            }
        }
    }

};

var Fil = function(renk) {
    this.adet = 2;
    Tas.call(this, 'Fil', renk);

    this.findMoves = function(x, y) {
        for (i = x, j = y; i <= 7, j <= 7; i++, j++) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j))
            }
        } // (I. bölge) SOLA YUKARI

        for (i = x, j = y; i <= 7, j >= 0; i++, j--) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j))
            }
        } // (II. bölge) SAĞA YUKARI

        for (i = x, j = y; i >= 0, j >= 0; i--, j--) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j));
            }
        } // (II. bölge) SAĞA AŞAĞI}

        for (i = x, j = y; i >= 0, j <= 7; i--, j++) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j));
            }
        } // (IV. bölge) SOLA AŞAĞI}

    }
}
var At = function(renk) {
    this.adet = 2;
    Tas.call(this, 'At', renk)
    this.findMoves = function(i, j){
    	this.movesTo.push( new Cell( i+2, j+1));
    	this.movesTo.push( new Cell( i+2, j-1));

    	this.movesTo.push( new Cell( i+1, j+2));
    	this.movesTo.push( new Cell( i+1, j-2));

    	this.movesTo.push( new Cell( i-1, j+2));
    	this.movesTo.push( new Cell( i-1, j-2));

    	this.movesTo.push( new Cell( i-2, j+1));
    	this.movesTo.push( new Cell( i-2, j-1));


    }
}
var Sah = function(renk) {
    this.adet = 1;
    Tas.call(this, 'Şah', renk);
    this.findMoves = function(i, j) {
        this.movesTo.push(new Cell(i - 1, j - 1))
        this.movesTo.push(new Cell(i - 1, j))
        this.movesTo.push(new Cell(i - 1, j + 1))
        this.movesTo.push(new Cell(i, j - 1))
        // this.movesTo.push ( new Cell (i, j) )	
        this.movesTo.push(new Cell(i, j + 1))
        this.movesTo.push(new Cell(i + 1, j + 1))
        this.movesTo.push(new Cell(i + 1, j))
        this.movesTo.push(new Cell(i + 1, j - 1))
    }
}
var Vezir = function(renk) {
    this.adet = 1;
    Tas.call(this, 'Vezir', renk);
    this.findMoves = function(x, y) {

        // Fil'in hareketleri >>
        for (i = x, j = y; i <= 7, j <= 7; i++, j++) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j))
            }
        } // (I. bölge) SOLA YUKARI

        for (i = x, j = y; i <= 7, j >= 0; i++, j--) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j))
            }
        } // (II. bölge) SAĞA YUKARI

        for (i = x, j = y; i >= 0, j >= 0; i--, j--) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j));
            }
        } // (II. bölge) SAĞA AŞAĞI}

        for (i = x, j = y; i >= 0, j <= 7; i--, j++) {
            if (this.isvalid(i, j, x, y)) {;
                this.movesTo.push(new Cell(i, j));
            }
        } // (IV. bölge) SOLA AŞAĞI}
        // Fil'in hareketleri <<

        // Kale'nin hareketleri >>
			
       for (var i = 0; i <= 7; i++) {
            if (this.isvalid(i, y, x, y)) {;
                this.movesTo.push(new Cell(i, y));
            }
        }

      for (var j = 0; j <= 7; j++) {
            if (this.isvalid(x, j, x, y)) {;
                this.movesTo.push(new Cell(x, j));
            }
        }
            // Kale'nin hareketleri <<
    }
}

var Taslar = [Piyon, Kale, Fil, At, Sah, Vezir];
var taslar = [];
[0, 1].forEach(function(R) { // Renk
    Taslar.forEach(function(T) { // Tas
        for (var i = 0; i < new T().adet; i++) {
            // console.log(T);
            taslar.push(new T(R));
        };
    });
});
// OBJECTS <<

var i = 0;
var selectedCell;
var selectedCellID;

var selectedPiece;
var selectedPieceText;

var cells = [];
var highlightedCells = [];
var classSelected = 'selected';
var classMoves = 'moves';


function vurgula() {
    db = [cells[0], cells[1], cells[2], cells[5]];

    db.forEach(function(cell, index) {
        cell.highlight();
    });
}

function refresh() {
    temizle();
    selectedPiece = $('input[name=tas]:checked').val();
    selectedPieceText = $('input[name="tas"]:checked + span')[0].innerText;
    var ij = selectedCellID.split('cell')[1]; // ["#", "44"]
    var i = parseInt(ij[0]);
    var j = parseInt(ij[1]);
    eval('new ' + selectedPiece).moves(i, j);
    with($(selectedCell)) {
        removeClass(classSelected);
        val('');
    };

    selectedCell = selectedCellID;

    with($(selectedCellID)) {
        addClass(classSelected);
        val(selectedPieceText);
    }
}

function temizle() {
    cells.forEach(function(cell, index) {
        cell.clean();
    });
}

function butonUret() {
    cells.forEach(function(cell, index) {
        var buton = $(document.createElement('input'));
        with(buton) {
            attr('type', 'button');
            attr('id', cell.id);
            attr('class', ['number', cell.oddEven].join(' '));
            appendTo($("#row" + cell.i));
        }

    });

    // addCellEvents();
    // Add events to buttons
    $("input[type=button]").click(
        function() {
            selectedCellID = '#' + this.id;
            refresh();


        }
    );
}

window.addEventListener('load', function() {
    for (var i = 7; i >= 0; i--) {
        var d = $(document.createElement('div'));
        d.attr('id', 'row' + i);
        d.appendTo($('#alan'));
        for (var j = 7; j >= 0; j--) {
            //butonOlustur(i, j);
            cells.push(new Cell(i, j));
        }
    }

    butonUret();

    $('input[name="tas"]').click(refresh);

    selectedCellID = '#cell22';
    refresh();
});