/*
 *    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 TestSuite = require('./TestSuite').default;
const Mindplot = require('../../lib/mindplot');
const mindplot = Mindplot();

const FreeTestSuite = new Class({
    Extends: TestSuite,

    initialize: function () {
        $('#freeTest').css('display', 'block');

        this.testFreePosition();
        this.testFreePredict();
        this.testReconnectFreeNode();
        this.testSiblingOverlapping();
        this.testRootNodeChildrenPositioning();
        this.testBalancedFreePredict();
        this.testFreeReorder();
        this.testFreeOverlap();
    },

    testFreePosition: function () {
        console.log('testFreePosition:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position);
        manager.addNode(2, TestSuite.NODE_SIZE, position);
        manager.addNode(3, TestSuite.NODE_SIZE, position);
        manager.addNode(4, TestSuite.NODE_SIZE, position);
        manager.addNode(5, TestSuite.NODE_SIZE, position);
        manager.addNode(6, TestSuite.NODE_SIZE, position);
        manager.addNode(7, TestSuite.NODE_SIZE, position);
        manager.addNode(8, TestSuite.NODE_SIZE, position);
        manager.addNode(9, TestSuite.NODE_SIZE, position);
        manager.addNode(10, TestSuite.NODE_SIZE, position);
        manager.addNode(11, TestSuite.NODE_SIZE, position);
        manager.addNode(12, TestSuite.NODE_SIZE, position);
        manager.addNode(13, TestSuite.NODE_SIZE, position);
        manager.addNode(14, TestSuite.NODE_SIZE, position);
        manager.addNode(15, TestSuite.NODE_SIZE, position);
        manager.addNode(16, TestSuite.NODE_SIZE, position);
        manager.addNode(17, TestSuite.NODE_SIZE, position);
        manager.addNode(18, TestSuite.NODE_SIZE, position);
        manager.addNode(19, TestSuite.NODE_SIZE, position);
        manager.addNode(20, TestSuite.NODE_SIZE, position);
        manager.addNode(21, TestSuite.NODE_SIZE, position);
        manager.addNode(22, TestSuite.NODE_SIZE, position);

        manager.connectNode(0, 1, 0).connectNode(0, 2, 1).connectNode(0, 3, 2).connectNode(0, 4, 3);
        manager.connectNode(4, 21, 0).connectNode(4, 22, 0);
        manager.connectNode(1, 5, 0);
        manager.connectNode(5, 6, 0).connectNode(6, 8, 0).connectNode(8, 9, 0);
        manager.connectNode(5, 7, 1).connectNode(7, 10, 0);
        manager
            .connectNode(3, 11, 0)
            .connectNode(11, 14, 0)
            .connectNode(14, 18, 0)
            .connectNode(14, 19, 1)
            .connectNode(14, 20, 2);
        manager
            .connectNode(3, 12, 1)
            .connectNode(12, 15, 0)
            .connectNode(12, 16, 1)
            .connectNode(12, 17, 2);
        manager.connectNode(3, 13, 2);

        manager.layout();
        manager.plot('testFreePosition1', { width: 1400, height: 600 });

        console.log('\tmove node 12 to (300,30):');
        manager.moveNode(12, { x: 300, y: 30 });
        manager.layout(true);
        manager.plot('testFreePosition2', { width: 1400, height: 600 });
        this._assertFreePosition(manager, 12, { x: 300, y: 30 });

        console.log('\tmove node 13 to (340,180):');
        var node13Pos = { x: 340, y: 180 };
        manager.moveNode(13, node13Pos);
        manager.layout(true);
        manager.plot('testFreePosition3', { width: 1400, height: 600 });
        this._assertFreePosition(manager, 13, node13Pos);

        console.log('\tmove node 11 to (250,-50):');
        manager.moveNode(11, { x: 250, y: -50 });
        manager.layout(true);
        manager.plot('testFreePosition4', { width: 1400, height: 600 });
        this._assertFreePosition(manager, 11, { x: 250, y: -50 });
        $assert(
            manager.find(13).getPosition().x == node13Pos.x &&
                manager.find(13).getPosition().y == node13Pos.y,
            "Node 13 shouldn't have moved"
        );

        console.log('\tmove node 7 to (350,-190):');
        manager.moveNode(7, { x: 350, y: -190 });
        manager.layout(true);
        manager.plot('testFreePosition5', { width: 1400, height: 600 });
        this._assertFreePosition(manager, 7, { x: 350, y: -190 });

        console.log('\tadd node 23 to 12:');
        manager.addNode(23, TestSuite.NODE_SIZE, position);
        manager.connectNode(12, 23, 3);
        manager.layout(true);
        manager.plot('testFreePosition6', { width: 1400, height: 600 });
        this._assertFreePosition(manager, null, null);

        console.log('\tmove node 4 to (-300, 190):');
        manager.moveNode(4, { x: -300, y: 190 });
        manager.layout(true);
        manager.plot('testFreePosition7', { width: 1400, height: 600 });
        this._assertFreePosition(manager, 4, { x: -300, y: 190 });

        console.log('\tadd node 24 to 3:');
        manager.addNode(24, TestSuite.NODE_SIZE, position);
        manager.connectNode(3, 24, 3);
        manager.layout(true);
        manager.plot('testFreePosition8', { width: 1400, height: 600 });
        this._assertFreePosition(manager, null, null);

        console.log('\tadd node 25 to 17:');
        manager.addNode(25, TestSuite.NODE_SIZE, position);
        manager.connectNode(17, 25, 0);
        manager.layout(true);
        manager.plot('testFreePosition9', { width: 1400, height: 600 });
        this._assertFreePosition(manager, null, null);

        console.log('OK!\n\n');
    },

    testFreePredict: function () {
        console.log('testFreePredict:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position);
        manager.addNode(2, TestSuite.NODE_SIZE, position);
        manager.addNode(3, TestSuite.NODE_SIZE, position);
        manager.addNode(4, TestSuite.NODE_SIZE, position);
        manager.addNode(5, TestSuite.NODE_SIZE, position);
        manager.addNode(6, TestSuite.NODE_SIZE, position);
        manager.addNode(7, TestSuite.NODE_SIZE, position);
        manager.addNode(8, TestSuite.NODE_SIZE, position);
        manager.addNode(9, TestSuite.NODE_SIZE, position);
        manager.addNode(10, TestSuite.NODE_SIZE, position);
        manager.addNode(11, TestSuite.NODE_SIZE, position);

        manager.connectNode(0, 1, 0);
        manager.connectNode(0, 2, 1);
        manager.connectNode(0, 3, 2);
        manager.connectNode(3, 4, 0);
        manager.connectNode(3, 5, 1);
        manager.connectNode(3, 6, 2);
        manager.connectNode(5, 7, 0);
        manager.connectNode(5, 8, 1);
        manager.connectNode(5, 11, 2);
        manager.connectNode(2, 9, 0);
        manager.connectNode(2, 10, 1);

        manager.layout();
        var graph = manager.plot('testFreePredict1', { width: 1000, height: 400 });

        var pos1 = { x: 370, y: 80 };
        var predict1 = manager.predict(5, 11, pos1, true);
        this._plotPrediction(graph, predict1);
        $assert(
            predict1.position.x == pos1.x && predict1.position.y == pos1.y,
            'free predict should return the same position'
        );

        var pos2 = { x: -200, y: 80 };
        var predict2 = manager.predict(0, 2, pos2, true);
        this._plotPrediction(graph, predict2);
        $assert(
            predict2.position.x == pos2.x && predict2.position.y == pos2.y,
            'free predict should return the same position'
        );

        var pos3 = { x: 200, y: 30 };
        var node5 = manager.find(5);
        var predict3 = manager.predict(3, 5, pos3, true);
        this._plotPrediction(graph, predict3);
        $assert(
            predict3.position.x == node5.getPosition().x && predict3.position.y == pos3.y,
            'free predict should return the x-coordinate of the node'
        );

        var pos4 = { x: -100, y: 45 };
        var node10 = manager.find(10);
        var predict4 = manager.predict(2, 10, pos4, true);
        this._plotPrediction(graph, predict4);
        $assert(
            predict4.position.x == node10.getPosition().x && predict4.position.y == pos4.y,
            'free predict should return the x-coordinate of the node'
        );

        console.log('OK!\n\n');
    },

    testReconnectFreeNode: function () {
        console.log('testReconnectFreeNode:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position);
        manager.addNode(2, TestSuite.NODE_SIZE, position);
        manager.addNode(3, TestSuite.NODE_SIZE, position);
        manager.addNode(4, TestSuite.NODE_SIZE, position);
        manager.addNode(5, TestSuite.NODE_SIZE, position);
        manager.addNode(6, TestSuite.NODE_SIZE, position);
        manager.addNode(7, TestSuite.NODE_SIZE, position);
        manager.addNode(8, TestSuite.NODE_SIZE, position);
        manager.addNode(9, TestSuite.NODE_SIZE, position);
        manager.addNode(10, TestSuite.NODE_SIZE, position);
        manager.addNode(11, TestSuite.NODE_SIZE, position);

        manager.connectNode(0, 1, 0);
        manager.connectNode(0, 2, 1);
        manager.connectNode(0, 3, 2);
        manager.connectNode(3, 4, 0);
        manager.connectNode(3, 5, 1);
        manager.connectNode(3, 6, 2);
        manager.connectNode(5, 7, 0);
        manager.connectNode(5, 8, 1);
        manager.connectNode(5, 11, 2);
        manager.connectNode(2, 9, 0);
        manager.connectNode(2, 10, 1);

        manager.layout();
        manager.plot('testReconnectFreeNode1', { width: 1000, height: 400 });

        console.log('\tmove node 5');
        manager.moveNode(5, { x: 250, y: 30 });
        manager.layout();
        manager.plot('testReconnectFreeNode2', { width: 1000, height: 400 });
        this._assertFreePosition(manager, 5, { x: 250, y: 30 });

        console.log('\treconnect node 5 to node 2');
        manager.disconnectNode(5);
        manager.connectNode(2, 5, 2);
        manager.layout();
        manager.plot('testReconnectFreeNode3', { width: 1000, height: 400 });
        $assert(
            manager.find(5).getPosition().y > manager.find(10).getPosition().y &&
                manager.find(5).getPosition().x == manager.find(10).getPosition().x,
            'Node 5 is incorrectly positioned'
        );
        $assert(manager.find(5).getOrder() == 2, 'Node 5 should have order 2');

        console.log('\tmove node 8');
        manager.moveNode(8, { x: -370, y: 60 });
        manager.layout();
        manager.plot('testReconnectFreeNode4', { width: 1000, height: 400 });
        this._assertFreePosition(manager, 8, { x: -370, y: 60 });

        console.log('\treconnect node 5 to node 10');
        manager.disconnectNode(5);
        manager.connectNode(10, 5, 0);
        manager.layout();
        manager.plot('testReconnectFreeNode5', { width: 1000, height: 400 });
        $assert(
            manager.find(5).getPosition().y == manager.find(10).getPosition().y &&
                manager.find(5).getPosition().x < manager.find(10).getPosition().x,
            'Node 5 is incorrectly positioned'
        );
        $assert(manager.find(5).getOrder() == 0, 'Node 5 should have order 0');

        console.log('reconnect node 5 to node 3');
        manager.disconnectNode(5);
        manager.connectNode(3, 5, 2);
        manager.layout();
        manager.plot('testReconnectFreeNode6', { width: 1000, height: 400 });
        $assert(
            manager.find(5).getPosition().y > manager.find(6).getPosition().y &&
                manager.find(5).getPosition().x == manager.find(6).getPosition().x,
            'Node 5 is incorrectly positioned'
        );
        $assert(manager.find(5).getOrder() == 2, 'Node 5 should have order 2');

        console.log('\tmove node 8');
        manager.moveNode(8, { x: 370, y: 30 });
        manager.layout();
        manager.plot('testReconnectFreeNode7', { width: 1000, height: 400 });
        this._assertFreePosition(manager, 8, { x: 370, y: 30 });

        console.log('OK!\n\n');
    },

    testSiblingOverlapping: function () {
        console.log('testSiblingOverlapping:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
        manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(1, 2, 0);
        manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(1, 3, 1);
        manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 2);
        manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 3);
        manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 4);
        manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(1, 7, 5);
        manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(1, 8, 6);
        manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(0, 9, 4);
        manager.layout();
        manager.plot('testSiblingOverlapping1', { width: 800, height: 600 });

        console.log('\tmove node 2');
        manager.moveNode(2, { x: 250, y: -30 });
        manager.layout();
        manager.plot('testSiblingOverlapping2', { width: 800, height: 600 });
        this._assertFreePosition(manager, 2, { x: 250, y: -30 });

        console.log('\tmove node 7');
        manager.moveNode(7, { x: 250, y: 100 });
        manager.layout();
        manager.plot('testSiblingOverlapping3', { width: 800, height: 600 });
        this._assertFreePosition(manager, 7, { x: 250, y: 100 });

        console.log('OK!\n\n');
    },

    testRootNodeChildrenPositioning: function () {
        console.log('testRootNodeChildrenPositioning:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
        manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 1);
        manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 2);
        manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(0, 4, 3);
        manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(0, 5, 4);
        manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(0, 6, 5);
        manager.layout();
        manager.plot('testRootNodeChildrenPositioning1', { width: 800, height: 600 });

        console.log('\tmove node 1');
        manager.moveNode(1, { x: 150, y: 0 });
        manager.layout();
        manager.plot('testRootNodeChildrenPositioning2', { width: 800, height: 600 });
        this._assertFreePosition(manager, 1, { x: 150, y: 0 });

        console.log('\tmove node 4');
        manager.moveNode(4, { x: -140, y: 30 });
        manager.layout();
        manager.plot('testRootNodeChildrenPositioning3', { width: 800, height: 600 });
        this._assertFreePosition(manager, 4, { x: -140, y: 30 });

        console.log('\tmove node 2');
        manager.moveNode(2, { x: -150, y: -50 });
        manager.layout();
        manager.plot('testRootNodeChildrenPositioning4', { width: 800, height: 600 });
        this._assertFreePosition(manager, 2, { x: -150, y: -50 });

        //TODO(gb): fix this. It's not working
        //        console.log("\tmove node 6");
        //        manager.moveNode(6, {x:-150, y:-50});
        //        manager.layout();
        //        manager.plot("testRootNodeChildrenPositioning5", {width:800, height:600});
        //        this._assertFreePosition(manager, 6, {x:-150, y:-50});

        console.log('OK!\n\n');
    },

    testBalancedFreePredict: function () {
        console.log('testBalancedFreePredict:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
        manager.layout();
        var graph1 = manager.plot('testBalancedFreePredict1', { width: 800, height: 400 });

        var predict1 = manager.predict(0, 1, { x: 70, y: 0 }, true);
        this._plotPrediction(graph1, predict1);
        $assert(
            predict1.position.x == manager.find(1).getPosition().x,
            'Prediction x pos should be the same as node 1'
        );

        console.log('OK!\n\n');
    },

    testFreeReorder: function () {
        console.log('testFreeReorder:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
        manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 0);
        manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 1);
        manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 2);

        manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 2);
        manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(2, 7, 0);
        manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(2, 8, 1);
        manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(2, 9, 2);
        manager.addNode(10, TestSuite.NODE_SIZE, position).connectNode(2, 10, 3);

        manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 4);
        manager.addNode(11, TestSuite.NODE_SIZE, position).connectNode(3, 11, 0);
        manager.addNode(12, TestSuite.NODE_SIZE, position).connectNode(3, 12, 1);
        manager.addNode(13, TestSuite.NODE_SIZE, position).connectNode(3, 13, 2);
        manager.addNode(14, TestSuite.NODE_SIZE, position).connectNode(3, 14, 3);
        manager.addNode(15, TestSuite.NODE_SIZE, position).connectNode(3, 15, 4);
        manager.addNode(16, TestSuite.NODE_SIZE, position).connectNode(3, 16, 5);

        manager.layout();
        manager.moveNode(14, { x: 270, y: -160 });
        manager.layout();
        manager.plot('testFreeReorder1', { width: 800, height: 1200 });
        $assert(
            manager.find(14).getPosition().y > manager.find(10).getPosition().y,
            'Node 14 should be below branch 2'
        );

        console.log('OK!\n\n');
    },

    testFreeOverlap: function () {
        console.log('testFreeOverlap:');
        var position = { x: 0, y: 0 };
        var manager = new mindplot.layout.LayoutManager(0, TestSuite.ROOT_NODE_SIZE);

        // Prepare a sample graph ...
        manager.addNode(1, TestSuite.NODE_SIZE, position).connectNode(0, 1, 0);
        manager.addNode(4, TestSuite.NODE_SIZE, position).connectNode(1, 4, 0);
        manager.addNode(5, TestSuite.NODE_SIZE, position).connectNode(1, 5, 1);
        manager.addNode(6, TestSuite.NODE_SIZE, position).connectNode(1, 6, 2);

        manager.addNode(2, TestSuite.NODE_SIZE, position).connectNode(0, 2, 2);
        manager.addNode(7, TestSuite.NODE_SIZE, position).connectNode(2, 7, 0);
        manager.addNode(8, TestSuite.NODE_SIZE, position).connectNode(2, 8, 1);
        manager.addNode(9, TestSuite.NODE_SIZE, position).connectNode(2, 9, 2);
        manager.addNode(10, TestSuite.NODE_SIZE, position).connectNode(2, 10, 3);

        manager.addNode(3, TestSuite.NODE_SIZE, position).connectNode(0, 3, 4);
        manager.addNode(11, TestSuite.NODE_SIZE, position).connectNode(3, 11, 0);
        manager.addNode(12, TestSuite.NODE_SIZE, position).connectNode(3, 12, 1);
        manager.addNode(13, TestSuite.NODE_SIZE, position).connectNode(3, 13, 2);
        manager.addNode(14, TestSuite.NODE_SIZE, position).connectNode(3, 14, 3);
        manager.addNode(15, TestSuite.NODE_SIZE, position).connectNode(3, 15, 4);
        manager.addNode(16, TestSuite.NODE_SIZE, position).connectNode(3, 16, 5);

        manager.layout();
        manager.plot('testFreeOverlap1', { width: 800, height: 1200 });

        manager.moveNode(14, { x: 270, y: 7 });
        manager.layout();
        manager.plot('testFreeOverlap2', { width: 800, height: 1200 });
        $assert(
            manager.find(2).getPosition().y > manager.find(1).getPosition().y,
            'Branches 1 and 2 are overlapping'
        );

        console.log('OK!\n\n');
    },

    _assertFreePosition: function (manager, id, position) {
        if (id != null && position.x != null && position.y != null) {
            var node = manager.find(id);
            $assert(
                node.getPosition().x == position.x && node.getPosition().y == position.y,
                'Freely moved node ' +
                    id +
                    ' is not left at free position (' +
                    position.x +
                    ',' +
                    position.y +
                    '). ' +
                    'Actual position: (' +
                    node.getPosition().x +
                    ',' +
                    node.getPosition().y +
                    ')'
            );
        }

        var treeSet = manager._treeSet;
        _.each(
            treeSet._rootNodes,
            function (rootNode) {
                var heightById = rootNode.getSorter().computeChildrenIdByHeights(treeSet, rootNode);
                this._assertBranchCollision(treeSet, rootNode, heightById);
            },
            this
        );
    },

    _assertBranchCollision: function (treeSet, node, heightById) {
        var children = treeSet.getChildren(node);
        var childOfRootNode = treeSet._rootNodes.contains(node);

        _.each(
            children,
            function (child) {
                var height = heightById[child.getId()];
                var siblings = treeSet.getSiblings(child);
                if (childOfRootNode) {
                    siblings = siblings.filter(function (sibling) {
                        return child.getOrder() % 2 == sibling.getOrder() % 2;
                    });
                }
                _.each(
                    siblings,
                    function (sibling) {
                        this._branchesOverlap(child, sibling, heightById);
                    },
                    this
                );
            },
            this
        );

        _.each(
            children,
            function (child) {
                this._assertBranchCollision(treeSet, child, heightById);
            },
            this
        );
    },

    _branchesOverlap: function (branchA, branchB, heightById) {
        var topA = branchA.getPosition().y - heightById[branchA.getId()] / 2;
        var bottomA = branchA.getPosition().y + heightById[branchA.getId()] / 2;
        var topB = branchB.getPosition().y - heightById[branchB.getId()] / 2;
        var bottomB = branchB.getPosition().y + heightById[branchB.getId()] / 2;

        $assert(
            topA >= bottomB || bottomA <= topB,
            'Branches ' + branchA.getId() + ' and ' + branchB.getId() + ' overlap'
        );
    },
});

export default FreeTestSuite;