import { stepCurveChartOption } from './stepCurveChart'
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import type { PersistedTestRecord } from '@/api/tests'
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import { toTestDisplayValue } from './testDataUnits'
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export type ReportMetricKey = 'voltage' | 'current' | 'positiveVoltage' | 'negativeVoltage' | 'temperature'
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export interface MeasurementSeries { name: string; zeroTime: number | null; records: PersistedTestRecord[]; hidden?: boolean }
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/** 曲线与空状态使用同一时间口径；导入快照的已有辅助测量可沿用记录绝对时间。 */
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export function measurementRecordTime(metric: ReportMetricKey, row: PersistedTestRecord) {
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if (metric === 'voltage' || metric === 'current') return row.deviceTime
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return row.collectorDeviceTime ?? (row.sourceType === 'SNAPSHOT' ? row.deviceTime : null)
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}
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/** 页面和打印共用测量、时间及单位口径；不连接缺失值，也不限制曲线条数。 */
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export function measurementChartOption(metric: { key: ReportMetricKey; unit: string }, items: MeasurementSeries[], colors: string[]) {
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const field: Record<ReportMetricKey, keyof PersistedTestRecord> = { voltage: 'voltage', current: 'current', positiveVoltage: 'positivePotential', negativeVoltage: 'negativePotential', temperature: 'temperature' }
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const series = items.map(item => item.records.flatMap(row => {
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const time = measurementRecordTime(metric.key, row)
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if (time == null || item.zeroTime == null) return []
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const value = row[field[metric.key]]
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return [[(Number(time) - item.zeroTime) / 1000, value == null ? null : toTestDisplayValue(metric.key, Number(value))] as [number, number | null]]
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}).sort((left, right) => left[0] - right[0]))
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return stepCurveChartOption(metric, items.map((item, index) => ({ name: item.name, hidden: item.hidden, points: series[index] || [] })), colors)
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}
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