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feat(platform): aggregate realtime by vehicle

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lingniu
2026-07-03 23:09:28 +08:00
parent 71b714bbf7
commit 37f9d7a307
12 changed files with 291 additions and 13 deletions
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56
vehicle-data-platform/apps/api/internal/platform/mysql_queries.go
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@@ -136,6 +136,62 @@ func buildRealtimeLocationSQL(query url.Values) SQLQuery {
}
}
func buildVehicleRealtimeSQL(query url.Values) SQLQuery {
limit := parsePositive(query.Get("limit"), 20)
offset := parsePositive(query.Get("offset"), 0)
args := []any{}
where := []string{"l.vin IS NOT NULL", "l.vin <> ''"}
having := []string{}
if protocol := strings.TrimSpace(query.Get("protocol")); protocol != "" {
where = append(where, "l.protocol = ?")
args = append(args, protocol)
}
if keyword := strings.TrimSpace(query.Get("vin")); keyword != "" {
where = append(where, "(l.vin LIKE ? OR l.plate LIKE ? OR b.plate LIKE ? OR b.phone LIKE ? OR b.oem LIKE ?)")
like := "%" + keyword + "%"
args = append(args, like, like, like, like, like)
}
switch strings.TrimSpace(query.Get("online")) {
case "online":
having = append(having, "COUNT(DISTINCT CASE WHEN l.updated_at >= DATE_SUB(NOW(), INTERVAL 1 MINUTE) THEN l.protocol END) > 0")
case "offline":
having = append(having, "COUNT(DISTINCT CASE WHEN l.updated_at >= DATE_SUB(NOW(), INTERVAL 1 MINUTE) THEN l.protocol END) = 0")
}
countArgs := append([]any(nil), args...)
args = append(args, limit, offset)
havingSQL := ""
if len(having) > 0 {
havingSQL = ` HAVING ` + strings.Join(having, " AND ") + ` `
}
groupSQL := `FROM vehicle_realtime_location l ` +
`LEFT JOIN vehicle_identity_binding b ON b.vin = l.vin ` +
`WHERE ` + strings.Join(where, " AND ") + ` ` +
`GROUP BY l.vin, b.plate, b.phone, b.oem ` +
havingSQL
orderExpr := `l.updated_at DESC, l.protocol ASC`
return SQLQuery{
Text: `SELECT l.vin, ` +
`COALESCE(NULLIF(MAX(NULLIF(l.plate, '')), ''), b.plate, '') AS plate, ` +
`COALESCE(b.phone, '') AS phone, COALESCE(b.oem, '') AS oem, ` +
`COALESCE(GROUP_CONCAT(DISTINCT l.protocol ORDER BY l.protocol SEPARATOR ','), '') AS protocols, ` +
`COUNT(DISTINCT l.protocol) AS source_count, ` +
`COUNT(DISTINCT CASE WHEN l.updated_at >= DATE_SUB(NOW(), INTERVAL 1 MINUTE) THEN l.protocol END) AS online_source_count, ` +
`CASE WHEN COUNT(DISTINCT CASE WHEN l.updated_at >= DATE_SUB(NOW(), INTERVAL 1 MINUTE) THEN l.protocol END) > 0 THEN 1 ELSE 0 END AS online, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(l.protocol ORDER BY ` + orderExpr + `), ',', 1), '') AS primary_protocol, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(CAST(l.longitude AS CHAR) ORDER BY ` + orderExpr + `), ',', 1), '') AS longitude, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(CAST(l.latitude AS CHAR) ORDER BY ` + orderExpr + `), ',', 1), '') AS latitude, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(CAST(l.speed_kmh AS CHAR) ORDER BY ` + orderExpr + `), ',', 1), '') AS speed_kmh, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(CAST(l.soc_percent AS CHAR) ORDER BY ` + orderExpr + `), ',', 1), '') AS soc_percent, ` +
`COALESCE(SUBSTRING_INDEX(GROUP_CONCAT(CAST(l.total_mileage_km AS CHAR) ORDER BY ` + orderExpr + `), ',', 1), '') AS total_mileage_km, ` +
`COALESCE(DATE_FORMAT(MAX(l.updated_at), '%Y-%m-%d %H:%i:%s'), '') AS last_seen ` +
groupSQL +
`ORDER BY MAX(l.updated_at) DESC, l.vin ASC LIMIT ? OFFSET ?`,
Args: args,
CountText: `SELECT COUNT(*) FROM (SELECT l.vin ` + groupSQL + `) vehicle_realtime_count`,
CountArgs: countArgs,
}
}
func buildDailyMileageSQL(query url.Values) SQLQuery {
limit := parsePositive(query.Get("limit"), 20)
offset := parsePositive(query.Get("offset"), 0)