lazydns 0.3.20

A light and fast DNS server/forwarder implementation in Rust
Documentation 
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<script lang="ts">
  import { onMount, onDestroy } from "svelte";
  import * as echarts from "echarts";
  import type { LatencyDistribution } from "../lib/types";
  import { darkMode } from "../lib/stores";

  export let data: LatencyDistribution[];

  let chartContainer: HTMLDivElement;
  let chart: echarts.ECharts | null = null;
  let isDark = true;

  darkMode.subscribe((value) => {
    isDark = value;
    if (chart) {
      chart.dispose();
      initChart();
    }
  });

  function initChart() {
    if (!chartContainer) return;

    chart = echarts.init(chartContainer, isDark ? "dark" : undefined);

    updateChart();
  }

  function updateChart() {
    if (!chart) return;

    const axisColor = isDark ? "#6b7280" : "#9ca3af";
    const lineColor = isDark ? "#374151" : "#e5e7eb";
    const tooltipBg = isDark
      ? "rgba(17, 24, 39, 0.95)"
      : "rgba(255, 255, 255, 0.95)";
    const tooltipBorder = isDark ? "#374151" : "#e5e7eb";
    const tooltipTextColor = isDark ? "#f3f4f6" : "#1f2937";

    const option: echarts.EChartsOption = {
      backgroundColor: "transparent",
      tooltip: {
        trigger: "axis",
        axisPointer: { type: "shadow" },
        backgroundColor: tooltipBg,
        borderColor: tooltipBorder,
        textStyle: { color: tooltipTextColor },
        formatter: (params: any) => {
          const item = params[0];
          return `
            <div class="font-medium">${item.axisValue}</div>
            <div>Count: ${item.value.toLocaleString()}</div>
            <div>Percentage: ${data[item.dataIndex].percentage.toFixed(1)}%</div>
          `;
        },
      },
      grid: {
        left: 60,
        right: 30,
        top: 30,
        bottom: 40,
      },
      xAxis: {
        type: "category",
        data: data.map((d) => d.bucket),
        axisLabel: {
          color: axisColor,
          fontSize: 11,
        },
        axisLine: { lineStyle: { color: lineColor } },
        axisTick: { show: false },
      },
      yAxis: {
        type: "value",
        axisLabel: {
          color: axisColor,
          fontSize: 11,
          formatter: (value: number) => {
            if (value >= 1000) return (value / 1000).toFixed(0) + "K";
            return value.toString();
          },
        },
        axisLine: { show: false },
        axisTick: { show: false },
        splitLine: {
          lineStyle: { color: lineColor, type: "dashed" },
        },
      },
      series: [
        {
          type: "bar",
          data: data.map((d, i) => ({
            value: d.count,
            itemStyle: {
              color: i < 2 ? "#10b981" : i < 4 ? "#f59e0b" : "#ef4444",
              borderRadius: [4, 4, 0, 0],
            },
          })),
          barWidth: "60%",
        },
      ],
    };

    chart.setOption(option);
  }

  function handleResize() {
    chart?.resize();
  }

  onMount(() => {
    initChart();
    window.addEventListener("resize", handleResize);
  });

  onDestroy(() => {
    window.removeEventListener("resize", handleResize);
    chart?.dispose();
  });

  $: if (chart && data) {
    updateChart();
  }
</script>

<div class="card">
  <div class="card-header flex items-center justify-between">
    <h3 class="font-semibold {isDark ? 'text-white' : 'text-gray-900'}">
      Response Time Distribution
    </h3>
    <div class="flex items-center gap-4 text-xs">
      <span class="flex items-center gap-1">
        <span class="w-3 h-3 rounded bg-green-500"></span>
        <span class={isDark ? "text-gray-400" : "text-gray-700"}
          >Fast (&lt;10ms)</span
        >
      </span>
      <span class="flex items-center gap-1">
        <span class="w-3 h-3 rounded bg-yellow-500"></span>
        <span class={isDark ? "text-gray-400" : "text-gray-700"}
          >Normal (10-50ms)</span
        >
      </span>
      <span class="flex items-center gap-1">
        <span class="w-3 h-3 rounded bg-red-500"></span>
        <span class={isDark ? "text-gray-400" : "text-gray-700"}
          >Slow (&gt;50ms)</span
        >
      </span>
    </div>
  </div>
  <div class="card-body">
    <div bind:this={chartContainer} class="w-full h-64"></div>
  </div>
</div>