261 lines
10 KiB
TypeScript
261 lines
10 KiB
TypeScript
"use client"
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import { useEffect, useMemo, useState } from 'react'
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import Link from 'next/link'
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import {
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Chart as ChartJS,
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CategoryScale,
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LinearScale,
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PointElement,
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LineElement,
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BarElement,
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Tooltip,
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Legend,
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} from 'chart.js'
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import { Line, Bar, Scatter } from 'react-chartjs-2'
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ChartJS.register(CategoryScale, LinearScale, PointElement, LineElement, BarElement, Tooltip, Legend)
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type Detail = {
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id: string
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timestamp: string
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code: number[]
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fit?: { a: number; b: number }
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sampleCount: number
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duration: number
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stats: {
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codeMin: number
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codeMax: number
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codeAvg: number
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forceMin?: number
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forceMax?: number
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forceAvg?: number
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}
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}
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function toFixed(n: number | undefined | null, d = 3) {
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if (n == null || Number.isNaN(n)) return '-'
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return n.toFixed(d)
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}
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export default function Page({ params }: { params: { id: string } }) {
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const [loading, setLoading] = useState(false)
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const [error, setError] = useState<string | null>(null)
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const [rec, setRec] = useState<Detail | null>(null)
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useEffect(() => {
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const controller = new AbortController()
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async function run() {
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setLoading(true)
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setError(null)
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try {
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const res = await fetch(`/api/records/${params.id}`, { signal: controller.signal })
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if (!res.ok) throw new Error(`HTTP ${res.status}`)
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const j = await res.json()
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setRec(j)
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} catch (e: any) {
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if (e.name !== 'AbortError') setError(e.message || '加载失败')
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} finally {
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setLoading(false)
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}
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}
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run()
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return () => controller.abort()
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}, [params.id])
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const timeAxis = useMemo(() => {
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if (!rec) return [] as number[]
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const step = rec.sampleCount > 0 ? rec.duration / rec.sampleCount : 0
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return Array.from({ length: rec.sampleCount }, (_, i) => +(i * step).toFixed(6))
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}, [rec])
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const forceSeries = useMemo(() => {
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if (!rec?.fit) return undefined
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const { a, b } = rec.fit
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return rec.code.map((c) => a * c + b)
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}, [rec])
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const codeHistogram = useMemo(() => buildHistogram(rec?.code || [], 30), [rec])
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const forceHistogram = useMemo(() => buildHistogram(forceSeries || [], 30), [forceSeries])
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return (
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<div className="min-h-screen bg-zinc-50 text-zinc-900 dark:bg-black dark:text-zinc-100">
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<div className="mx-auto max-w-6xl p-4 sm:p-6">
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<div className="mb-4 flex items-center justify-between">
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<div className="flex items-center gap-3">
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<Link href="/" className="rounded border px-3 py-1.5">← 返回</Link>
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<h1 className="text-xl font-semibold">记录 {rec?.id || params.id}</h1>
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</div>
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<div className="flex gap-2">
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<a
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href={`/api/export`}
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onClick={async (e) => {
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e.preventDefault()
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const body = JSON.stringify({ ids: [params.id], format: 'csv' as const })
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const res = await fetch('/api/export', { method: 'POST', headers: { 'content-type': 'application/json' }, body })
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const blob = await res.blob()
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const url = URL.createObjectURL(blob)
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const a = document.createElement('a')
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a.href = url
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a.download = `record-${params.id}.csv`
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a.click()
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URL.revokeObjectURL(url)
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}}
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className="rounded bg-zinc-900 px-3 py-1.5 text-white dark:bg-zinc-100 dark:text-black"
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>导出 CSV</a>
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</div>
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</div>
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{loading && <div className="rounded bg-zinc-200 p-4 dark:bg-zinc-800">加载中...</div>}
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{error && <div className="rounded bg-red-100 p-4 text-red-800">{error}</div>}
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{rec && (
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<div className="flex flex-col gap-6">
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<section className="grid grid-cols-1 gap-4 sm:grid-cols-3">
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">上传时间</div>
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<div className="mt-1 text-lg">{new Date(rec.timestamp).toLocaleString()}</div>
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</div>
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">采样</div>
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<div className="mt-1 text-lg">{rec.sampleCount} 点 · {rec.duration.toFixed(3)} s · {(rec.sampleCount / rec.duration).toFixed(2)} Hz</div>
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</div>
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">拟合</div>
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<div className="mt-1 text-lg">{rec.fit ? `y = ${rec.fit.a.toFixed(4)}x + ${rec.fit.b.toFixed(3)}` : '未拟合'}</div>
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</div>
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</section>
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<section className="grid grid-cols-1 gap-4 sm:grid-cols-3">
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">码值统计</div>
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<div className="mt-1 text-lg">[{rec.stats.codeMin} ~ {rec.stats.codeMax}] · 均值 {toFixed(rec.stats.codeAvg, 2)}</div>
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</div>
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">力值统计</div>
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<div className="mt-1 text-lg">{rec.fit ? `[${toFixed(rec.stats.forceMin, 2)} ~ ${toFixed(rec.stats.forceMax, 2)}] mN · 均值 ${toFixed(rec.stats.forceAvg, 2)}` : '—'}</div>
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</div>
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="text-sm text-zinc-500">峰峰值</div>
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<div className="mt-1 text-lg">码值 {rec.stats.codeMax - rec.stats.codeMin}{rec.fit && rec.stats.forceMax != null && rec.stats.forceMin != null ? ` · 力值 ${(rec.stats.forceMax - rec.stats.forceMin).toFixed(2)} mN` : ''}</div>
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</div>
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</section>
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<section className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="mb-3 text-sm text-zinc-500">时序曲线</div>
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<Line
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data={{
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labels: timeAxis,
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datasets: [
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{
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type: 'line' as const,
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label: '码值',
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data: rec.code,
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borderColor: '#0ea5e9',
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backgroundColor: 'rgba(14,165,233,0.2)',
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borderWidth: 1.5,
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yAxisID: 'yCode',
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pointRadius: 0,
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},
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...(rec.fit && forceSeries
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? [
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{
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type: 'line' as const,
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label: '力值 (mN)',
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data: forceSeries,
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borderColor: '#22c55e',
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backgroundColor: 'rgba(34,197,94,0.2)',
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borderWidth: 1.5,
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yAxisID: 'yForce',
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pointRadius: 0,
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},
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]
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: []),
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],
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}}
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options={{
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responsive: true,
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interaction: { mode: 'index', intersect: false },
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plugins: { legend: { position: 'top' as const } },
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scales: {
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x: { title: { display: true, text: '时间 (s)' } },
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yCode: { type: 'linear' as const, position: 'left' as const, title: { display: true, text: '码值' } },
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yForce: { type: 'linear' as const, position: 'right' as const, title: { display: true, text: '力值 (mN)' }, grid: { drawOnChartArea: false } },
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},
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}}
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/>
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</section>
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<section className="grid grid-cols-1 gap-4 sm:grid-cols-2">
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="mb-3 text-sm text-zinc-500">码值分布直方图</div>
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<Bar
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data={{
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labels: codeHistogram.labels,
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datasets: [
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{
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label: '频数',
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data: codeHistogram.counts,
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backgroundColor: 'rgba(14,165,233,0.3)',
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borderColor: '#0ea5e9',
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},
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],
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}}
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options={{ scales: { x: { title: { display: true, text: '码值' } }, y: { title: { display: true, text: '数量' } } } }}
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/>
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</div>
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<div className="rounded-lg border p-4 dark:border-zinc-800">
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<div className="mb-3 text-sm text-zinc-500">线性度散点图</div>
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{rec.fit && forceSeries ? (
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<Scatter
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data={{
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datasets: [
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{
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label: '码值 vs 力值',
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data: rec.code.map((c, i) => ({ x: c, y: forceSeries[i] })),
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backgroundColor: '#22c55e',
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},
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],
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}}
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options={{
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scales: {
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x: { title: { display: true, text: '码值' } },
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y: { title: { display: true, text: '力值 (mN)' } },
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},
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plugins: { legend: { display: false } },
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}}
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/>
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) : (
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<div className="text-sm text-zinc-500">无拟合参数，无法绘制</div>
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)}
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</div>
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</section>
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</div>
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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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function buildHistogram(values: number[], bins: number) {
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if (!values.length || bins <= 0) return { labels: [] as string[], counts: [] as number[] }
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let min = values[0]
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let max = values[0]
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for (const v of values) {
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if (v < min) min = v
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if (v > max) max = v
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}
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if (min === max) {
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return { labels: [min.toFixed(2)], counts: [values.length] }
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}
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const step = (max - min) / bins
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const edges = Array.from({ length: bins + 1 }, (_, i) => min + i * step)
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const counts = Array.from({ length: bins }, () => 0)
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for (const v of values) {
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let idx = Math.floor((v - min) / step)
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if (idx >= bins) idx = bins - 1
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if (idx < 0) idx = 0
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counts[idx]++
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}
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const labels = Array.from({ length: bins }, (_, i) => `${edges[i].toFixed(1)}~${edges[i + 1].toFixed(1)}`)
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return { labels, counts }
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}
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