/*
 *    Copyright [2015] [wisemapping]
 *
 *   Licensed under WiseMapping Public License, Version 1.0 (the "License").
 *   It is basically the Apache License, Version 2.0 (the "License") plus the
 *   "powered by wisemapping" text requirement on every single page;
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the license at
 *
 *       http://www.wisemapping.org/license
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

const INodeModel = new Class(
    /** @lends INodeModel */ {
        /**
         * @constructs
         * @param mindmap
         */
        initialize: function (mindmap) {
            $assert(mindmap && mindmap.getBranches, 'mindmap can not be null');
            this._mindmap = mindmap;
        },

        /** */
        getId: function () {
            return this.getProperty('id');
        },

        /** */
        setId: function (id) {
            if ($defined(id) && id > INodeModel._uuid) {
                INodeModel._uuid = id;
            }
            if (!$defined(id)) {
                id = INodeModel._nextUUID();
            }

            this.putProperty('id', id);
        },

        /** */
        getType: function () {
            return this.getProperty('type');
        },

        /** */
        setType: function (type) {
            this.putProperty('type', type);
        },

        /** */
        setText: function (text) {
            this.putProperty('text', text);
        },

        /** */
        getText: function () {
            return this.getProperty('text');
        },

        /** */
        setPosition: function (x, y) {
            $assert(!isNaN(parseInt(x)), 'x position is not valid:' + x);
            $assert(!isNaN(parseInt(y)), 'y position is not valid:' + y);
            this.putProperty('position', '{x:' + parseInt(x) + ',y:' + parseInt(y) + '}');
        },

        /** */
        getPosition: function () {
            var value = this.getProperty('position');
            var result = null;
            if (value != null) {
                result = eval('(' + value + ')');
            }
            return result;
        },

        /** */
        setImageSize: function (width, height) {
            this.putProperty('imageSize', '{width:' + width + ',height:' + height + '}');
        },

        /** */
        getImageSize: function () {
            var value = this.getProperty('imageSize');
            var result = null;
            if (value != null) {
                result = eval('(' + value + ')');
            }
            return result;
        },

        /** */
        setImageUrl: function (url) {
            this.putProperty('imageUrl', url);
        },

        /** */
        getMetadata: function () {
            return this.getProperty('metadata');
        },

        /** */
        setMetadata: function (json) {
            this.putProperty('metadata', json);
        },

        /** */
        getImageUrl: function () {
            return this.getProperty('imageUrl');
        },

        /** */
        getMindmap: function () {
            return this._mindmap;
        },

        /**
         * lets the mindmap handle the disconnect node operation
         * @see mindplot.model.IMindmap.disconnect
         */
        disconnect: function () {
            var mindmap = this.getMindmap();
            mindmap.disconnect(this);
        },

        /** */
        getShapeType: function () {
            return this.getProperty('shapeType');
        },

        /** */
        setShapeType: function (type) {
            this.putProperty('shapeType', type);
        },

        /** */
        setOrder: function (value) {
            $assert(
                (typeof value === 'number' && isFinite(value)) || value == null,
                'Order must be null or a number'
            );
            this.putProperty('order', value);
        },

        /** */
        getOrder: function () {
            return this.getProperty('order');
        },

        /** */
        setFontFamily: function (fontFamily) {
            this.putProperty('fontFamily', fontFamily);
        },

        /** */
        getFontFamily: function () {
            return this.getProperty('fontFamily');
        },

        /** */
        setFontStyle: function (fontStyle) {
            this.putProperty('fontStyle', fontStyle);
        },

        /** */
        getFontStyle: function () {
            return this.getProperty('fontStyle');
        },

        /** */
        setFontWeight: function (weight) {
            this.putProperty('fontWeight', weight);
        },

        /** */
        getFontWeight: function () {
            return this.getProperty('fontWeight');
        },

        /** */
        setFontColor: function (color) {
            this.putProperty('fontColor', color);
        },

        /** */
        getFontColor: function () {
            return this.getProperty('fontColor');
        },

        /** */
        setFontSize: function (size) {
            this.putProperty('fontSize', size);
        },

        /** */
        getFontSize: function () {
            return this.getProperty('fontSize');
        },

        /** */
        getBorderColor: function () {
            return this.getProperty('borderColor');
        },

        /** */
        setBorderColor: function (color) {
            this.putProperty('borderColor', color);
        },

        /** */
        getBackgroundColor: function () {
            return this.getProperty('backgroundColor');
        },

        /** */
        setBackgroundColor: function (color) {
            this.putProperty('backgroundColor', color);
        },

        /** */
        areChildrenShrunken: function () {
            var result = this.getProperty('shrunken');
            return $defined(result) ? result : false;
        },

        /**
         * @return {Boolean} true if the children nodes are hidden by the shrink option
         */
        setChildrenShrunken: function (value) {
            this.putProperty('shrunken', value);
        },

        /**
         * @return {Boolean} true
         */
        isNodeModel: function () {
            return true;
        },

        /**
         * @return {Boolean} true if the node model has a parent assigned to it
         */
        isConnected: function () {
            return this.getParent() != null;
        },

        /** @abstract */
        append: function (node) {
            throw 'Unsupported operation';
        },

        /**
         * lets the mindmap handle the connect node operation
         * @throws will throw an error if parent is null or undefined
         * @see mindplot.model.IMindmap.connect
         */
        connectTo: function (parent) {
            $assert(parent, 'parent can not be null');
            var mindmap = this.getMindmap();
            mindmap.connect(parent, this);
        },

        /**
         * @param target
         * @return target
         */
        copyTo: function (target) {
            var source = this;
            // Copy properties ...
            var keys = source.getPropertiesKeys();
            _.each(keys, function (key) {
                var value = source.getProperty(key);
                target.putProperty(key, value);
            });

            // Copy children ...
            var children = this.getChildren();
            var tmindmap = target.getMindmap();

            _.each(function (children, snode) {
                var tnode = tmindmap.createNode(snode.getType(), snode.getId());
                snode.copyTo(tnode);
                target.append(tnode);
            });

            return target;
        },

        /**
         * lets parent handle the delete node operation, or, if none defined, calls the mindmap to
         * remove the respective branch
         */
        deleteNode: function () {
            var mindmap = this.getMindmap();

            //        console.log("Before:" + mindmap.inspect());
            var parent = this.getParent();
            if ($defined(parent)) {
                parent.removeChild(this);
            } else {
                // If it has not parent, it must be an isolate topic ...
                mindmap.removeBranch(this);
            }
            // It's an isolated node. It must be a hole branch ...
            //        console.log("After:" + mindmap.inspect());
        },

        /** @abstract */
        getPropertiesKeys: function () {
            throw 'Unsupported operation';
        },

        /** @abstract */
        putProperty: function (key, value) {
            throw 'Unsupported operation';
        },

        /** @abstract */
        setParent: function (parent) {
            throw 'Unsupported operation';
        },

        /** @abstract */
        getChildren: function () {
            throw 'Unsupported operation';
        },

        /** @abstract */
        getParent: function () {
            throw 'Unsupported operation';
        },

        /** @abstract */
        clone: function () {
            throw 'Unsupported operation';
        },

        /** */
        inspect: function () {
            var result =
                '{ type: ' +
                this.getType() +
                ' , id: ' +
                this.getId() +
                ' , text: ' +
                this.getText();

            var children = this.getChildren();
            if (children.length > 0) {
                result = result + ', children: {(size:' + children.length;
                _.each(children, function (node) {
                    result = result + '=> (';
                    var keys = node.getPropertiesKeys();
                    _.each(keys, function (key) {
                        var value = node.getProperty(key);
                        result = result + key + ':' + value + ',';
                    });
                    result = result + '}';
                });
            }

            result = result + ' }';
            return result;
        },

        /** @abstract */
        removeChild: function (child) {
            throw 'Unsupported operation';
        },
    }
);

/**
 * @enum {String}
 */
const TopicShape = {
    RECTANGLE: 'rectagle',
    ROUNDED_RECT: 'rounded rectagle',
    ELLIPSE: 'elipse',
    LINE: 'line',
    IMAGE: 'image',
};

/**
 * @constant
 * @type {String}
 * @default
 */
INodeModel.CENTRAL_TOPIC_TYPE = 'CentralTopic';
/**
 * @constant
 * @type {String}
 * @default
 */
INodeModel.MAIN_TOPIC_TYPE = 'MainTopic';

/**
 * @constant
 * @type {Number}
 * @default
 */
INodeModel.MAIN_TOPIC_TO_MAIN_TOPIC_DISTANCE = 220;

/**
 * @todo: This method must be implemented. (unascribed)
 */
INodeModel._nextUUID = function () {
    if (!$defined(INodeModel._uuid)) {
        INodeModel._uuid = 0;
    }

    INodeModel._uuid = INodeModel._uuid + 1;
    return INodeModel._uuid;
};
INodeModel._uuid = 0;

export default INodeModel;
export { TopicShape };