功能：完善里程边界与氢耗流式统计

2026-09-02 14:05:04 +08:00
parent 4201878c35
commit 8759668d39
23 changed files with 1638 additions and 159 deletions
@@ -0,0 +1,142 @@
+package stats
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"sort"
+	"strings"
+)
+
+const HydrogenEnergyParameterTableSQL = `CREATE TABLE IF NOT EXISTS vehicle_hydrogen_energy_parameter (
+  vin VARCHAR(64) NOT NULL,
+  battery_capacity_kwh DECIMAL(12,3) NOT NULL,
+  hydrogen_energy_kwh_per_kg DECIMAL(12,3) NOT NULL DEFAULT 16.000,
+  confirmed_by VARCHAR(96) NOT NULL DEFAULT '',
+  source_note VARCHAR(255) NOT NULL DEFAULT '',
+  effective_from DATE NOT NULL,
+  effective_to DATE NULL,
+  active TINYINT(1) NOT NULL DEFAULT 1,
+  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
+  PRIMARY KEY (vin, effective_from),
+  KEY idx_hydrogen_energy_parameter_active (active, effective_from, effective_to, vin),
+  CONSTRAINT chk_hydrogen_energy_parameter_capacity CHECK (battery_capacity_kwh > 0 AND battery_capacity_kwh <= 500),
+  CONSTRAINT chk_hydrogen_energy_parameter_conversion CHECK (hydrogen_energy_kwh_per_kg > 0 AND hydrogen_energy_kwh_per_kg <= 50),
+  CONSTRAINT chk_hydrogen_energy_parameter_dates CHECK (effective_to IS NULL OR effective_to >= effective_from)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci`
+
+const (
+	hydrogenEnergyAssetSourceNote  = "ln_asset_management.vehicle_model.battery_capacity"
+	hydrogenEnergyAssetConfirmedBy = "资产车型主数据自动同步"
+	hydrogenEnergyAssetEffectiveAt = "1970-01-01"
+)
+
+type HydrogenEnergyParameterSyncResult struct {
+	Read        int
+	Written     int
+	Deactivated int64
+}
+
+type hydrogenEnergyParameterRow struct {
+	VIN             string
+	SourceVehicleID int64
+	CapacityKWh     float64
+	SourceUpdatedAt sql.NullTime
+}
+
+// SyncHydrogenEnergyParameters projects each active hydrogen vehicle's rated
+// battery capacity from the asset model master into the VIN-scoped calculation
+// parameter table. The fixed, oldest effective date lets a later effective-dated
+// business override win without disabling automatic master-data synchronization.
+func SyncHydrogenEnergyParameters(ctx context.Context, db *sql.DB, sourceSchema string) (HydrogenEnergyParameterSyncResult, error) {
+	result := HydrogenEnergyParameterSyncResult{}
+	if db == nil {
+		return result, fmt.Errorf("mysql database is required")
+	}
+	sourceSchema = strings.TrimSpace(sourceSchema)
+	if !mysqlIdentifier.MatchString(sourceSchema) {
+		return result, fmt.Errorf("invalid asset schema %q", sourceSchema)
+	}
+	query := fmt.Sprintf(`SELECT vi.id,UPPER(TRIM(vi.vin)),vm.battery_capacity,
+CASE
+  WHEN vi.update_time IS NULL THEN vm.update_time
+  WHEN vm.update_time IS NULL THEN vi.update_time
+  ELSE GREATEST(vi.update_time,vm.update_time)
+END
+FROM %s.vehicle_info vi
+JOIN %s.vehicle_model vm ON vm.id=vi.vehicle_model_id
+WHERE COALESCE(vi.del_flag,'0')='0' AND COALESCE(vm.del_flag,'0')='0'
+  AND LENGTH(TRIM(vi.vin))=17
+  AND vm.tank_capacity>0
+  AND vm.battery_capacity>0 AND vm.battery_capacity<=500`, sourceSchema, sourceSchema)
+	rows, err := db.QueryContext(ctx, query)
+	if err != nil {
+		return result, fmt.Errorf("read asset hydrogen energy parameters: %w", err)
+	}
+	byVIN := map[string]hydrogenEnergyParameterRow{}
+	for rows.Next() {
+		var row hydrogenEnergyParameterRow
+		if err := rows.Scan(&row.SourceVehicleID, &row.VIN, &row.CapacityKWh, &row.SourceUpdatedAt); err != nil {
+			rows.Close()
+			return result, err
+		}
+		result.Read++
+		if row.CapacityKWh <= 0 || row.CapacityKWh > 500 {
+			continue
+		}
+		if previous, exists := byVIN[row.VIN]; !exists || newerEnergyParameterRow(row, previous) {
+			byVIN[row.VIN] = row
+		}
+	}
+	if err := rows.Close(); err != nil {
+		return result, err
+	}
+
+	tx, err := db.BeginTx(ctx, nil)
+	if err != nil {
+		return result, err
+	}
+	defer tx.Rollback()
+	if _, err := tx.ExecContext(ctx, `UPDATE vehicle_hydrogen_energy_parameter
+SET active=0
+WHERE active=1 AND source_note=?`, hydrogenEnergyAssetSourceNote); err != nil {
+		return result, err
+	}
+	const upsert = `INSERT INTO vehicle_hydrogen_energy_parameter(
+vin,battery_capacity_kwh,hydrogen_energy_kwh_per_kg,confirmed_by,source_note,effective_from,effective_to,active
+) VALUES(?,?,16.000,?,?,?,NULL,1)
+ON DUPLICATE KEY UPDATE battery_capacity_kwh=VALUES(battery_capacity_kwh),
+confirmed_by=VALUES(confirmed_by),source_note=VALUES(source_note),effective_to=NULL,active=1`
+	vins := make([]string, 0, len(byVIN))
+	for vin := range byVIN {
+		vins = append(vins, vin)
+	}
+	sort.Strings(vins)
+	for _, vin := range vins {
+		row := byVIN[vin]
+		if _, err := tx.ExecContext(ctx, upsert, row.VIN, row.CapacityKWh, hydrogenEnergyAssetConfirmedBy, hydrogenEnergyAssetSourceNote, hydrogenEnergyAssetEffectiveAt); err != nil {
+			return result, err
+		}
+		result.Written++
+	}
+	if err := tx.QueryRowContext(ctx, `SELECT COUNT(*)
+FROM vehicle_hydrogen_energy_parameter
+WHERE active=0 AND source_note=?`, hydrogenEnergyAssetSourceNote).Scan(&result.Deactivated); err != nil {
+		return result, err
+	}
+	if err := tx.Commit(); err != nil {
+		return result, err
+	}
+	return result, nil
+}
+
+func newerEnergyParameterRow(left, right hydrogenEnergyParameterRow) bool {
+	if left.SourceUpdatedAt.Valid != right.SourceUpdatedAt.Valid {
+		return left.SourceUpdatedAt.Valid
+	}
+	if left.SourceUpdatedAt.Valid && !left.SourceUpdatedAt.Time.Equal(right.SourceUpdatedAt.Time) {
+		return left.SourceUpdatedAt.Time.After(right.SourceUpdatedAt.Time)
+	}
+	return left.SourceVehicleID > right.SourceVehicleID
+}