Initial cloud-services repo - gateway service + pkg modules

pkg/db/queries/car_versions_log.go

@@ -0,0 +1,51 @@
+package queries
+
+import (
+	"time"
+
+	"fiskerinc.com/modules/common"
+
+	"github.com/go-pg/pg/v10/orm"
+	"github.com/pkg/errors"
+)
+
+const versionsAtSQL = "SELECT version_source, version FROM public.car_version_logs WHERE id IN (SELECT MAX(id) as id FROM public.car_version_logs WHERE vin = ? AND created_at <= ? GROUP BY vin, version_source)"
+
+type CarVersionsLogInterface interface {
+	LogVersionChange(log *common.CarVersionLogs) (orm.Result, error)
+	SelectByVIN(vin string, options *PageQueryOptions) ([]common.CarVersionLogs, int, error)
+	GetCarVersions(vin string, timestamp time.Time) (map[string]string, error)
+}
+
+// CarVersionsLog query methods
+type CarVersionsLog struct {
+	QueryBase
+}
+
+func (c *CarVersionsLog) LogVersionChange(log *common.CarVersionLogs) (orm.Result, error) {
+	return c.insert(log)
+}
+
+func (c *CarVersionsLog) SelectByVIN(vin string, options *PageQueryOptions) ([]common.CarVersionLogs, int, error) {
+	var logs []common.CarVersionLogs
+	query := c.GetDBConn().Model(&logs).Where("vin = ?", vin)
+	query = c.pageQuery(query, options)
+	total, err := query.SelectAndCount()
+
+	return logs, total, errors.WithStack(err)
+}
+
+func (c *CarVersionsLog) GetCarVersions(vin string, timestamp time.Time) (map[string]string, error) {
+	logs := []common.CarVersionLogs{}
+	result := map[string]string{}
+
+	_, err := c.GetDBConn().Query(&logs, versionsAtSQL, vin, timestamp)
+	if err == nil {
+		result = map[string]string{}
+		for _, log := range logs {
+			result[string(log.VersionSource)] = log.Version
+		}
+	}
+
+	return result, errors.WithStack(err)
+}