/**
 * 顶部header
 */
Vue.component("trend-line-chart", {
    template: `
            <div :style="{'height': height+'px'}" ref="chart">
 
            </div>
    `,
    props: {
        chartdata:{
            type:Object
        },
        height:{
            type:Number
        },
        data:{
            type:Array
        }
    },
    data() {
        return {
            option:{}
        }
    },
    mounted(){
        this.init()
    },
    methods: {
        init(){
            this.getChartData()
        },
        getChartData(){
            //品类金额占比 饼图
            var myChart = echarts.init(this.$refs.chart);
            this.echartPie(myChart,this.chartdata)
        },
        echartPie(myChart,data){
            let newPromise = new Promise((resolve) => {
                resolve()
            })
            //然后异步执行echarts的初始化函数
            newPromise.then(() => {
                var series =[]
                for (let i = 0; i < data.data.length; i++) {
                    series.push({
                        name:data.legend[i],
                        type: "line",
                        smooth: true,
                        symbol: "circle",
                        symbolSize: 5,
                        showSymbol: true,
                        lineStyle: {
                            normal: {
                                width: 2,
                            },
                        },
                        data: data.data[i],
                    })
                }

                var unit = ''
                if(data.unit){
                    unit = '单位：'+data.unit
                }

                this.option = {
                    color : data.color,
                    tooltip: {
                        trigger: "axis",
                        axisPointer: {
                            lineStyle: {
                                color: "#57617B",
                            },
                        },
                    },
                    grid: {
                        top:'15%',
                        left: "30",
                        right: "3%",
                        bottom: "1%",
                        containLabel: true,
                    },
                    xAxis: {
                        type: "category",
                        boundaryGap: false,
                        data: data.dataX,
                        axisLine: {
                            //坐标轴轴线相关设置。数学上的x轴
                            show: true,
                            lineStyle: {
                                color: "#25597e",
                                type: "dashed",
                            },
                        },
                        axisTick: {
                            show: false
                        },

                        axisLabel: {
                            //坐标轴刻度标签的相关设置
                            textStyle: {
                                color: "#c5d9fc",
                                margin: 20,
                                fontSize:16
                            },
                        },
                    },
                    yAxis: {
                        name:unit,
                        nameTextStyle: {
                            color: '#fff',
                            fontSize: 14,
                        },
                        type: "value",
                        axisLine: {
                            //坐标轴轴线相关设置。数学上的x轴
                            show: false,
                            lineStyle: {
                                color: "#c5d9fc",
                                type: "dashed",
                            },
                        },
                        axisTick: {
                            show: false
                        },
                        axisLabel: {
                            show: true,
                            //坐标轴刻度标签的相关设置
                            textStyle: {
                                color: "#c5d9fc",
                                margin: 20,
                                fontSize:16
                            },
                        },
                        splitLine: {
                            show: true,
                            lineStyle: {
                                color: "#25597e",
                                type: "dashed",
                            },
                        },
                    },
                    series: series
                };
                myChart.setOption(this.option,true);
                window.onresize = myChart.resize;
            })
        },
    },
    watch:{
        /*chartdata: {
            deep:true,
            handler: function (val, oldVal){
                this.init()
            }
        },*/
        data: function (val, oldVal){
            this.init()
        }

    }

})