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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* 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 * as echarts from '../../echarts';
import RibbonPath from './Ribbon';
import * as graphic from '../../util/graphic';

export default echarts.extendChartView({

    type: 'chord',

    init: function (option) {

    },

    render: function (seriesModel, ecModel, api) {
        var data = seriesModel.getData();
        var graph = seriesModel.getGraph();
        var edgeData = seriesModel.getEdgeData();

        var group = this.group;
        group.removeAll();

        data.each(function (idx) {
            var layout = data.getItemLayout(idx);
            var sector = new graphic.Sector({
                shape: {
                    cx: layout.cx,
                    cy: layout.cy,
                    clockwise: layout.clockwise,
                    r0: layout.r0,
                    r: layout.r,
                    startAngle: layout.startAngle,
                    endAngle: layout.endAngle
                }
            });

            sector.setStyle({
                fill: data.getItemVisual(idx, 'color')
            });

            data.setItemLayout(idx);
            group.add(sector);
        });

        var edgeRendered = {};
        edgeData.each(function (idx) {
            if (edgeRendered[idx]) {
                return;
            }
            var layout = edgeData.getItemLayout(idx);
            var edge = graph.getEdgeByIndex(idx);
            var otherEdge = graph.getEdge(edge.node2, edge.node1);
            var otherEdgeLayout = otherEdge.getLayout();
            edgeRendered[idx] = edgeRendered[otherEdge.dataIndex] = true;
            var ribbon = new RibbonPath({
                shape: {
                    cx: layout.cx,
                    cy: layout.cy,
                    r: layout.r,
                    s0: layout.startAngle,
                    s1: layout.endAngle,
                    t0: otherEdgeLayout.startAngle,
                    t1: otherEdgeLayout.endAngle,
                    clockwise: layout.clockwise
                }
            });
            ribbon.setStyle({
                // Use color of source
                fill: edge.node1.getVisual('color'),
                opacity: 0.5
            });
            group.add(ribbon);
        });
    },

    dispose: function () {}
});