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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <link rel="stylesheet" href="lib/reset.css">
    </head>
    <body>
        <style>
            .test-title {
                background: #146402;
                color: #fff;
            }
        </style>


        <div id="main0"></div>


        <script>

            require([
                'echarts',
                './data/life-expectancy.json'
            ], function (echarts, data) {
                var option = {
                    grid: {
                        left: 0,
                        bottom: 0,
                        containLabel: true,
                        top: 80
                    },
                    xAxis: {
                        type: 'value'
                    },
                    yAxis: {
                        type: 'value',
                        scale: true
                    },
                    toolbox: {
                        feature: {
                            dataZoom: {}
                        }
                    },
                    dataZoom: {
                        type: 'inside'
                    },
                    series: []
                };

                var series = data.series;

                option.visualMap = {
                    show: false,
                    min: 0,
                    max: 100,
                    dimension: 1
                };

                option.legend = {
                    // data: data.countries.map(function (item) {return item[2];}),
                    selectedMode: 'single',
                    right: 100
                };

                data.countries.forEach(function (country) {
                    var data = series.map(function (yearData) {
                        var item = yearData.filter(function (item) {
                            return item[3] === country[2];
                        })[0];
                        return {
                            label: {
                                normal: {
                                    position: 'top',
                                    show: item[4] % 20 === 0 && item[4] > 1940
                                },
                                emphasis: {
                                    position: 'top',
                                    show: true
                                }
                            },
                            name: item[4],
                            value: item
                        };
                    });
                    var links = data.map(function (item, idx) {
                        return {
                            source: idx,
                            target: idx + 1
                        };
                    });
                    links.pop();

                    option.series.push({
                        name: country[2],
                        type: 'graph',
                        coordinateSystem: 'cartesian2d',
                        data: data,
                        links: links,
                        edgeSymbol: ['none', 'arrow'],
                        edgeSymbolSize: 5,
                        legendHoverLink: false,
                        lineStyle: {
                            normal: {
                                color: '#333'
                            }
                        },
                        itemStyle: {
                            normal: {
                                borderWidth: 1,
                                borderColor: '#333'
                            }
                        },
                        label: {
                            normal: {
                                textStyle: {
                                    color: '#333'
                                }
                            }
                        },
                        symbolSize: 10,
                        animationDelay: function (idx) {
                            return idx * 100;
                        }
                    });
                });


                testHelper.create(echarts, 'main0', {
                    option: option
                });
            });

        </script>
    </body>
</html>