Initial commit

scripts/seed.go

@@ -0,0 +1,75 @@
+package scripts
+
+import (
+	"context"
+	"encoding/binary"
+	"fmt"
+	"math/rand"
+	"net"
+	"time"
+
+	"github.com/uptrace/bun"
+	"go.uber.org/zap"
+
+	"git.derfenix.pro/fenix/protect_trans_info/application/repository"
+)
+
+func SeedData(ctx context.Context, db *bun.DB, logger *zap.Logger) error {
+	now := time.Now().Add(-24 * time.Hour)
+
+	const bufSize = 500
+	buf := make([]repository.ConnLog, 0, bufSize)
+
+	for i := 0; i < 2_000_000; i++ {
+		buf = append(buf, repository.ConnLog{
+			UserID: uint64(rand.Int63n(10000)),
+			IP:     randomIP(),
+			TS:     now.Add(time.Second * time.Duration(i)),
+		})
+
+		if len(buf) == bufSize {
+			_, err := db.NewInsert().Model(&buf).Exec(ctx)
+			if err != nil {
+				return fmt.Errorf("insert bulk: %w", err)
+			}
+			logger.Sugar().Infof("insert %d items", len(buf))
+
+			buf = make([]repository.ConnLog, 0, bufSize)
+		}
+	}
+
+	if len(buf) > 0 {
+		_, err := db.NewInsert().Model(&buf).Exec(ctx)
+		if err != nil {
+			return fmt.Errorf("insert bulk: %w", err)
+		}
+		logger.Sugar().Infof("insert %d items", len(buf))
+	}
+
+	fixedDup := []repository.ConnLog{
+		repository.ConnLog{
+			UserID: 88888,
+			IP:     "127.0.0.1",
+			TS:     now.Add(time.Second * time.Duration(888)),
+		},
+		repository.ConnLog{
+			UserID: 99999,
+			IP:     "127.0.0.1",
+			TS:     now.Add(time.Second * time.Duration(999)),
+		},
+	}
+
+	_, err := db.NewInsert().Model(&fixedDup).Exec(ctx)
+	if err != nil {
+		return fmt.Errorf("insert fixed dup: %w", err)
+	}
+
+	return nil
+}
+
+func randomIP() string {
+	buf := make([]byte, 4)
+	binary.LittleEndian.PutUint32(buf, rand.Uint32())
+
+	return net.IP(buf).String()
+}