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import Vec2 from "absol/src/Math/Vec2";

/***
 *
 * @param {CircuitDiagramEditor}  editor
 * @constructor
 */

function NodePositionController(editor) {
    this.editor = editor;
    for (var i in this) {
        if (i.startsWith('ev_')) {
            this[i] = this[i].bind(this);
        }
    }
}

NodePositionController.prototype.addEventControl = function (nodeElt) {
    nodeElt.$header.on('click', this.ev_clickNode.bind(this, nodeElt));
    nodeElt.$header.on('dragstart', this.ev_dragStart.bind(this, nodeElt));
    nodeElt.$header.on('dragend', this.ev_dragEnd.bind(this, nodeElt));
    nodeElt.$header.on('drag', this.ev_drag.bind(this, nodeElt));
};


NodePositionController.prototype.ev_clickNode = function (node, event) {
    if (node.__draging) return;
    this.editor.lineSelectController.unSelectAll();
    this.editor.nodeSelectController.toggleSelect(node, event.shiftKey);

};

NodePositionController.prototype.ev_dragStart = function (node, event) {
    if (!node.containsClass('as-selected')) {
        this.editor.lineSelectController.unSelectAll();
        this.editor.nodeSelectController.select(node);
    }
    node.__draging = Math.random() + '';
    this.dragingNodeHolders = this.editor.nodeSelectController.$selectedNodes.reduce(function (ac, cr) {
        ac[cr.nodeId] = {
            elt: cr,
            pos: new Vec2(cr.x, cr.y)
        };
        return ac;
    }, {});
};

NodePositionController.prototype.ev_dragEnd = function (node, event) {
    var currentDragSession = node.__draging;
    this.dragingNodeHolders = null;
    setTimeout(function () {
        if (node.__draging === currentDragSession) {
            node.__draging = null;
        }
    }, 100);
    this.editor.notifyUnsaved();
};

NodePositionController.prototype.ev_drag = function (node, event) {
    var d = event.currentPoint.sub(event.startingPoint);
    var lines = {};
    var holder;
    for (var nodeId in this.dragingNodeHolders) {
        holder = this.dragingNodeHolders[nodeId];
        holder.newPos = holder.pos.add(d);
        holder.elt.x = holder.newPos.x;
        holder.elt.y = holder.newPos.y;
        Object.assign(lines, holder.elt.lines);
    }

    for (var lineId in lines) {
        this.editor.updateLinePosition(lineId);
    }
};

export default NodePositionController;