/*
 *    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.
 */
import { $assert } from "@wisemapping/core-js";

class CommandContext {
    constructor(designer) {
        $assert(designer, 'designer can not be null');
        this._designer = designer;
    }

    /** */
    findTopics(topicsIds) {
        $assert($defined(topicsIds), 'topicsIds can not be null');
        if (!(topicsIds instanceof Array)) {
            topicsIds = [topicsIds];
        }

        const designerTopics = this._designer.getModel().getTopics();
        const result = designerTopics.filter((topic) => topicsIds.contains(topic.getId()));

        if (result.length !== topicsIds.length) {
            const ids = designerTopics.map((topic) => topic.getId());
            $assert(
                result.length === topicsIds.length,
                `Could not find topic. Result:${result
                } Filter Criteria:${topicsIds
                } Current Topics: [${ids
                }]`,
            );
        }
        return result;
    }

    /** */
    deleteTopic(topic) {
        this._designer.removeTopic(topic);
    }

    /** */
    createTopic(model) {
        $assert(model, 'model can not be null');
        return this._designer.nodeModelToNodeGraph(model);
    }

    /** */
    createModel() {
        const mindmap = this._designer.getMindmap();
        return mindmap.createNode(NodeModel.MAIN_TOPIC_TYPE);
    }

    /** */
    addTopic(topic) {
        const mindmap = this._designer.getMindmap();
        return mindmap.addBranch(topic.getModel());
    }

    /** */
    connect(childTopic, parentTopic) {
        childTopic.connectTo(parentTopic, this._designer._workspace);
    }

    /** */
    disconnect(topic) {
        topic.disconnect(this._designer._workspace);
    }

    /** */
    addRelationship(model) {
        $assert(model, 'model cannot be null');
        return this._designer.addRelationship(model);
    }

    /** */
    deleteRelationship(relationship) {
        this._designer.deleteRelationship(relationship);
    }

    /** */
    findRelationships(relIds) {
        $assert($defined(relIds), 'relId can not be null');
        if (!(relIds instanceof Array)) {
            relIds = [relIds];
        }

        const designerRel = this._designer.getModel().getRelationships();
        return designerRel.filter((rel) => relIds.contains(rel.getId()));
    }

    /** */
    moveTopic(topic, position) {
        $assert(topic, 'topic cannot be null');
        $assert(position, 'position cannot be null');
        EventBus.instance.fireEvent(EventBus.events.NodeMoveEvent, {
            node: topic.getModel(),
            position,
        });
    }
}
// eslint-disable-next-line import/prefer-default-export
export default CommandContext;