92 lines
2.8 KiB
TypeScript
92 lines
2.8 KiB
TypeScript
"use client"
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interface LatencyChartProps {
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series: Record<string, number[]>
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}
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// Maps to CSS variables defined in globals.css
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const COLORS: Record<string, string> = {
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msk: "var(--chart-line-1)",
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spb: "var(--chart-line-2)",
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fra: "var(--chart-line-3)",
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ams: "var(--chart-line-4)",
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}
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const LABELS: Record<string, string> = {
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msk: "MSK",
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spb: "SPB",
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fra: "FRA",
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ams: "AMS",
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}
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export function LatencyChart({ series }: LatencyChartProps) {
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const W = 800, H = 220
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const pad = { l: 44, r: 12, t: 12, b: 28 }
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const iw = W - pad.l - pad.r
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const ih = H - pad.t - pad.b
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const allVals = Object.values(series).flat()
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const maxVal = Math.ceil(Math.max(...allVals) / 20) * 20 + 10
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const xAt = (i: number, n: number) => pad.l + (i / (n - 1)) * iw
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const yAt = (v: number) => pad.t + (1 - v / maxVal) * ih
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const gridLines = [0, 0.25, 0.5, 0.75, 1]
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return (
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<div>
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<svg viewBox={`0 0 ${W} ${H}`} style={{ width: "100%", height: 220, display: "block" }}>
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{gridLines.map((p, i) => (
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<g key={i}>
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<line
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x1={pad.l} x2={W - pad.r}
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y1={pad.t + ih * p} y2={pad.t + ih * p}
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style={{ stroke: "var(--border)" }}
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strokeDasharray={p === 1 ? "0" : "2 4"}
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/>
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<text
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x={pad.l - 8} y={pad.t + ih * p + 4}
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textAnchor="end" fontSize="10"
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style={{ fill: "var(--muted-foreground)" }}
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fontFamily="var(--font-mono, monospace)"
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>
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{Math.round(maxVal * (1 - p))}мс
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</text>
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</g>
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))}
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{[0, 15, 30, 45, 59].map((i) => (
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<text
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key={i}
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x={xAt(i, 60)} y={H - 6}
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textAnchor="middle" fontSize="10"
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style={{ fill: "var(--muted-foreground)" }}
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fontFamily="var(--font-mono, monospace)"
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>
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-{60 - i}м
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</text>
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))}
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{Object.entries(series).map(([key, arr]) => {
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const pts = arr.map((v, i) => `${xAt(i, arr.length).toFixed(1)},${yAt(v).toFixed(1)}`).join(" ")
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const color = COLORS[key] ?? "var(--chart-line-1)"
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return (
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<polyline key={key} points={pts} fill="none"
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style={{ stroke: color }}
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strokeWidth="1.6" strokeLinejoin="round" />
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)
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})}
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</svg>
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<div className="flex gap-4 pt-2 pl-11">
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{Object.keys(series).map((k) => {
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const color = COLORS[k] ?? "var(--chart-line-1)"
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return (
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<div key={k} className="flex items-center gap-1.5 text-xs">
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<span className="w-3 h-0.5 rounded" style={{ background: color }} />
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<span className="font-mono text-foreground">{LABELS[k]}</span>
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</div>
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)
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})}
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</div>
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</div>
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)
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}
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