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A Phoenix LiveView UI toolkit

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pui assets js sparkline_chart.js
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assets/js/sparkline_chart.js 

import ChartHook from "./chart_hook";



export default class SparklineChart extends ChartHook {

  measureSize(payload) {

    const width = Math.max(

      Math.round(this.root?.clientWidth || this.el.clientWidth || 0),

      48,

    );



    return {

      width,

      height: payload.height || 56,

    };

  }



  buildOptions(payload, size) {

    const options = super.buildOptions(

      {

        ...payload,

        preset: "line",

        grid: false,

        tooltip: { ...payload.tooltip, show: false },

        legend: { ...payload.legend, show: false, live: false },

      },

      size,

    );



    return {

      ...options,

      padding: [4, 2, 4, 2],

      cursor: { show: false },

      select: { show: false },

      legend: { show: false },

      axes: [{ show: false }, { show: false }],

      series: options.series.map((series, index) => {

        if (index === 0) {

          return series;

        }



        return {

          ...series,

          width: payload.series[index - 1]?.width ?? 1.5,

          points: { show: false },

          fill:

            payload.series[index - 1]?.fill || this.withAlpha(series.stroke, 0.18),

          paths: this.uPlot.paths.linear(),

        };

      }),

    };

  }

}