chore: snapshot production code before Apple Design UI refinement
This commit is contained in:
lingniu
@@ -0,0 +1,171 @@
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package openplatform
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import (
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"context"
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"fmt"
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"math"
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"sort"
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"strings"
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"time"
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)
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// ReconciledMileageRange uses terminal odometers, including one preceding
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// observation per protocol. The same function serves single days and every
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// range page: neither the requested start date nor page size changes a result.
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func (r *MySQLRepository) ReconciledMileageRange(ctx context.Context, vins []string, start, end string, protocols []string) (map[string]DailyMileage, error) {
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if len(vins) == 0 {
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return map[string]DailyMileage{}, nil
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}
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if len(protocols) == 0 {
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protocols = []string{"GB32960", "YUTONG_MQTT", "JT808"}
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}
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placeholders := func(n int) string { return strings.TrimRight(strings.Repeat("?,", n), ",") }
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// Unknown-protocol legacy imports and GPS distance are not terminal odometers.
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eligible := func(alias string) string {
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return fmt.Sprintf(`%[1]s.quality_status IN ('OK','INVALID_DELTA')
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AND %[1]s.latest_total_mileage_km > 0
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AND COALESCE(%[1]s.quality_reason,'') <> 'gps_coordinate_accumulation'
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AND %[1]s.source_ip NOT IN ('legacy-mysql.lingniu-prod','manual-lingniu-prod-day-mileage')
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AND %[1]s.latest_event_time IS NOT NULL
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AND %[1]s.latest_event_time < TIMESTAMP(%[1]s.stat_date)+INTERVAL 1 DAY`, alias)
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}
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filter := `vin IN (` + placeholders(len(vins)) + `) AND protocol IN (` + placeholders(len(protocols)) + `)`
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query := `WITH wanted AS (
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SELECT DISTINCT vin,protocol,stat_date FROM vehicle_daily_mileage_source p
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WHERE ` + filter + ` AND stat_date BETWEEN ? AND ? AND ` + eligible("p") + `
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UNION ALL
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SELECT vin,protocol,MAX(stat_date) AS stat_date FROM vehicle_daily_mileage_source p
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WHERE ` + filter + ` AND stat_date<? AND ` + eligible("p") + ` GROUP BY vin,protocol
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)
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SELECT s.vin,DATE_FORMAT(s.stat_date,'%Y-%m-%d'),s.protocol,s.source_key,
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s.daily_mileage_km,s.latest_total_mileage_km,
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DATE_FORMAT(s.latest_event_time,'%Y-%m-%dT%H:%i:%s+08:00'),
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DATE_FORMAT(s.updated_at,'%Y-%m-%dT%H:%i:%s+08:00'),
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COALESCE(DATE_FORMAT(s.first_event_time,'%Y-%m-%dT%H:%i:%s+08:00'),''),
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CASE WHEN s.quality_status='INVALID_DELTA' THEN COALESCE(s.quality_reason,'INVALID_DELTA') ELSE '' END
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FROM wanted w JOIN vehicle_daily_mileage_source s
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ON s.vin=w.vin AND s.protocol=w.protocol AND s.stat_date=w.stat_date
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WHERE ` + eligible("s") + `
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ORDER BY s.stat_date,s.vin,s.protocol,s.is_selected DESC,
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CASE WHEN s.quality_status='OK' THEN 0 ELSE 1 END,s.latest_event_time DESC,s.sample_count DESC,s.source_key`
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args := make([]any, 0, 2*(len(vins)+len(protocols))+3)
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for _, v := range vins {
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args = append(args, v)
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}
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for _, p := range protocols {
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args = append(args, p)
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}
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args = append(args, start, end)
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for _, v := range vins {
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args = append(args, v)
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}
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for _, p := range protocols {
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args = append(args, p)
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}
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args = append(args, start)
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rows, err := r.db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var points []DailyMileage
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seen := map[string]bool{}
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for rows.Next() {
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var v DailyMileage
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if err := rows.Scan(&v.VIN, &v.Date, &v.Protocol, &v.SourceKey, &v.MileageKm, &v.TotalMileageKm, &v.DataTime, &v.UpdatedAt, &v.StatisticsStartTime, &v.DataQuality); err != nil {
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return nil, err
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}
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key := v.VIN + "|" + v.Date + "|" + v.Protocol
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if !seen[key] {
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points = append(points, v)
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seen[key] = true
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}
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}
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if err := rows.Err(); err != nil {
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return nil, err
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}
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return reconcileMileage(points, vins, start, end, protocols)
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}
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func reconcileMileage(points []DailyMileage, vins []string, start, end string, protocols []string) (map[string]DailyMileage, error) {
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loc := time.FixedZone("Asia/Shanghai", 8*3600)
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first, err := time.ParseInLocation("2006-01-02", start, loc)
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if err != nil {
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return nil, err
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}
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last, err := time.ParseInLocation("2006-01-02", end, loc)
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if err != nil {
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return nil, err
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}
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if last.Before(first) {
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return nil, fmt.Errorf("invalid mileage interval")
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}
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if len(protocols) == 0 {
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protocols = []string{"GB32960", "YUTONG_MQTT", "JT808"}
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}
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sort.SliceStable(points, func(i, j int) bool { return points[i].Date < points[j].Date })
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state := map[string]map[string]DailyMileage{}
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pick := func(vin string) (DailyMileage, bool) {
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for _, p := range protocols {
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if v, ok := state[vin][p]; ok {
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return v, true
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}
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}
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return DailyMileage{}, false
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}
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put := func(v DailyMileage) {
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if state[v.VIN] == nil {
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state[v.VIN] = map[string]DailyMileage{}
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}
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state[v.VIN][v.Protocol] = v
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}
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i := 0
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for i < len(points) && points[i].Date < start {
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put(points[i])
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i++
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}
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out := map[string]DailyMileage{}
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for day := first; !day.After(last); day = day.AddDate(0, 0, 1) {
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date := day.Format("2006-01-02")
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before := map[string]DailyMileage{}
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for _, vin := range vins {
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if p, ok := pick(vin); ok {
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before[vin] = p
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}
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}
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for i < len(points) && points[i].Date == date {
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put(points[i])
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i++
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}
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for _, vin := range vins {
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current, ok := pick(vin)
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if !ok {
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continue
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}
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result := current
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previous, hasPrevious := before[vin]
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if current.Date < date {
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result.MileageKm = 0
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result.StatisticsStartTime = ""
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if result.DataQuality == "" {
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result.DataQuality = "CARRIED_FORWARD"
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}
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} else if current.DataQuality != "" {
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result.MileageKm = 0
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} else if !hasPrevious {
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result.DataQuality = "NO_PREVIOUS_BASELINE"
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} else if current.Protocol != previous.Protocol || current.SourceKey != previous.SourceKey {
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result.DataQuality = "ODOMETER_SOURCE_CHANGED"
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} else if current.TotalMileageKm < previous.TotalMileageKm {
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result.DataQuality = mileageTotalRollbackQuality
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} else if previous.DataQuality != "" {
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result.DataQuality = "PREVIOUS_ODOMETER_ANOMALY"
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} else {
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result.MileageKm = math.Round((current.TotalMileageKm-previous.TotalMileageKm)*1000) / 1000
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result.StatisticsStartTime = previous.DataTime
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}
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out[dailyMileageKey(vin, date)] = result
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}
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}
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return out, nil
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}
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