export default {
  tooltip: {
    trigger: 'item'
  },
  series: [
    {
      name: '',
      type: 'pie',
      radius: '50%',
      top: 30,
      data: [],
      itemStyle: {
        borderColor: '#fff',
        borderWidth: 1
      },
      label: {
        alignTo: 'edge',
        formatter: '{name|{b}}\n{time|{c}}',
        minMargin: 5,
        edgeDistance: '15%',
        lineHeight: 25,
        rich: {
          time: {
            fontSize: 12,
            color: '#999'
          }
        }
      },
      labelLine: {
        length: 10,
        length2: 0,
        maxSurfaceAngle: 80
      },
      labelLayout: function (params) {
        const isLeft = params.align === 'left'
        const points = params.labelLinePoints
        // Update the end point.
        points[2][0] = isLeft
          ? params.labelRect.x
          : params.labelRect.x + params.labelRect.width
        return {
          labelLinePoints: points
        }
      },
      emphasis: {
        itemStyle: {
          shadowBlur: 10,
          shadowOffsetX: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    }
  ]
}