feat(pkg/db): postgres database

cmd/cmd.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"math"
 	"os"
 	"time"
 
@@ -34,12 +35,19 @@ var rootCmd = &cobra.Command{
 				return fmt.Errorf("Can not locate the hostname: %v", err)
 			}
 
+			// Time must be truncted for postgres
+			// Postgres currently does not support nanoseconds which is automatically
+			// include into the go time object
+			t := time.Now()
+			l, _ := time.LoadLocation("Europe/Berlin")
+			t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second(), int(math.Round(float64(t.Nanosecond())/1000000)*1000000), l)
+
 			cnf := config.Configuration{
 				Device: &types.Device{
 					DeviceID:     uuid.NewV4().String(),
 					DeviceName:   hostname,
 					Logfile:      "/var/log/flucky/logfile.csv",
-					CreationDate: time.Now(),
+					CreationDate: t,
 				},
 			}
 
@@ -62,6 +70,7 @@ func Execute(version string) {
 	compression.InitCmd(rootCmd, &configFile)
 	convert.InitCmd(rootCmd, &configFile)
 	daemon.InitCmd(rootCmd, &configFile)
+	// db.InitCmd(rootCmd, &configFile)
 	humidity.InitCmd(rootCmd, &configFile)
 	pressure.InitCmd(rootCmd, &configFile)
 	rgbled.InitCmd(rootCmd, &configFile)

cmd/db/db.go

@@ -0,0 +1,49 @@
+package db
+
+import (
+	"context"
+	"log"
+
+	database "github.com/go-flucky/flucky/pkg/db"
+	"github.com/go-flucky/flucky/pkg/types"
+	"github.com/spf13/cobra"
+)
+
+var configFile *string
+
+var dbCmd = &cobra.Command{
+	Use:   "db",
+	Short: "Operates with the configured database",
+	Run: func(cmd *cobra.Command, args []string) {
+
+		postgresDB, err := database.New(database.DBOTypePostgres, "localhost", "5432", "postgres", "postgres", "postgres")
+		if err != nil {
+			log.Fatalf("%v", err)
+		}
+
+		ctx := context.Background()
+
+		devices := []*types.Device{
+			&types.Device{
+				DeviceID:   "1684df26-bc72-4435-a4f9-74b24bdb286c",
+				DeviceName: "raspberr-pi",
+			},
+			&types.Device{
+				DeviceID:   "1684df26-bc72-4435-a4f9-74b24bdb286c",
+				DeviceName: "raspberr-pi",
+			},
+		}
+
+		if err := postgresDB.InsertDevices(ctx, devices); err != nil {
+			log.Fatalln(err)
+		}
+	},
+}
+
+// Execute a
+func InitCmd(cmd *cobra.Command, cnfFile *string) {
+	configFile = cnfFile
+
+	cmd.AddCommand(dbCmd)
+
+}