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fix(stats): calculate mileage without previous-day baseline

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lingniu
2026-07-08 17:26:34 +08:00
parent 536b0bfee6
commit 469e9c75f6
5 changed files with 315 additions and 101 deletions
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22
go/vehicle-gateway/internal/stats/source_mileage.go
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@@ -273,17 +273,14 @@ WHERE vin = ? AND stat_date = ? AND protocol = ?
type sourceBaseline struct {
LatestTotalKM float64
LatestEventTime time.Time
QualityReason string
}
func lookupPreviousSourceBaseline(ctx context.Context, query Queryer, vin string, statDate string, protocol envelope.Protocol, sourceKey string) (sourceBaseline, bool, error) {
if query == nil || strings.TrimSpace(vin) == "" || strings.TrimSpace(statDate) == "" || strings.TrimSpace(sourceKey) == "" {
return sourceBaseline{}, false, nil
}
previousDate, ok := previousStatDate(statDate)
if !ok {
return sourceBaseline{}, false, nil
}
rows, err := query.QueryContext(ctx, previousSourceBaselineSQL, vin, previousDate, string(protocol), sourceKey)
rows, err := query.QueryContext(ctx, previousSourceBaselineSQL, vin, statDate, string(protocol), sourceKey)
if err != nil {
return sourceBaseline{}, false, err
}
@@ -305,6 +302,7 @@ func lookupPreviousSourceBaseline(ctx context.Context, query Queryer, vin string
return sourceBaseline{
LatestTotalKM: latestTotal.Float64,
LatestEventTime: latestEvent.Time,
QualityReason: "historical_source_baseline",
}, latestTotal.Valid, nil
}
@@ -334,25 +332,19 @@ func lookupCurrentSourceBaseline(ctx context.Context, query Queryer, vin string,
return sourceBaseline{
LatestTotalKM: firstTotal.Float64,
LatestEventTime: firstEvent.Time,
QualityReason: "current_day_first_sample",
}, firstTotal.Valid, nil
}
func previousStatDate(statDate string) (string, bool) {
day, err := time.Parse("2006-01-02", strings.TrimSpace(statDate))
if err != nil {
return "", false
}
return day.AddDate(0, 0, -1).Format("2006-01-02"), true
}
const previousSourceBaselineSQL = `
SELECT latest_total_mileage_km, latest_event_time
FROM vehicle_daily_mileage_source
WHERE vin = ?
AND stat_date = ?
AND stat_date < ?
AND protocol = ?
AND source_key = ?
ORDER BY latest_event_time DESC
AND quality_status = '` + QualityOK + `'
ORDER BY stat_date DESC, latest_event_time DESC
LIMIT 1
`