const getNormalLine = (data)=>{
  const defaultOption = {
    minRatio: 0,
    maxRatio: 1.1
  };
  const option = {...defaultOption, ...data};
  return {
    title: {
      text: ''
    },
    tooltip: {
      trigger: 'axis'
    },
    legend: {
      data: []
    },
    grid: {
      left: '3%',
      right: '4%',
      bottom: '3%',
      containLabel: true
    },
    xAxis: {
      type: 'category',
      axisLine: {
        lineStyle: {
          color: 'rgba(255,255,255,0.12)'
        }
      },
      axisLabel: {
        margin: 10,
        color: '#e2e9ff',
        textStyle: {
          fontSize: 14
        },
      },
    },
    yAxis: [{
      type: 'value',
      min(data) {
        const min =data.min;
        if(isNaN(min)) {
          return 0;
        }else {
          return (min * option.minRatio).toHold(2);
        }
      },
      max(data) {
        const max = data.max;
        if(isNaN(max)) {
          return 1;
        }else {
          return (max * option.maxRatio).toHold(2);
        }
      },
      axisLabel: {
        color: '#e2e9ff',
      },
      axisLine: {
        show: true,
        lineStyle: {
          color: 'rgba(255,255,255,0.12)'
        }
      },
      splitLine: {
        lineStyle: {
          color: 'rgba(255,255,255,0.12)'
        }
      }
    }],
    series: []
  }
}
export default getNormalLine;