instrument usecases & repository methods

internal/usecase/instrument.go

@@ -0,0 +1,28 @@
+package usecase
+
+import (
+	"context"
+	"fmt"
+
+	"gitea.computernetthings.ru/yash/crypto_alert_bot/internal/entities"
+)
+
+func (uc *Usecase) InstrumentList(ctx context.Context, offset, limit int) ([]entities.Instrument, error) {
+	instruments, err := uc.storage.InstrumentList(ctx, offset, limit)
+	if err != nil {
+		uc.log.Error("failed to list instruments", "offset", offset, "limit", limit, "err", err)
+		return nil, fmt.Errorf("failed to list instruments: %w", err)
+	}
+
+	return instruments, nil
+}
+
+func (uc *Usecase) CreateInstrument(ctx context.Context, instrument *entities.Instrument) (entities.InstrumentID, error) {
+	id, err := uc.storage.CreateInstrument(ctx, instrument)
+	if err != nil {
+		uc.log.Error("failed to create instrument", "instrument", instrument, "err", err)
+		return "", fmt.Errorf("failed to create instrument: %w", err)
+	}
+
+	return id, nil
+}