Refactor marketplace product fetching and caching logic; update environment configuration for Redis and PostgreSQL

internal/marketplace/entities.go

@@ -1,5 +1,17 @@
 package marketplace
 
+import (
+	"encoding/json"
+	"github.com/go-faster/errors"
+	"sipro-mps/pkg/utils"
+)
+
+const (
+	WildberriesBaseMarketplace = 0
+	OzonBaseMarketplace        = 1
+	YandexBaseMarketplace      = 2
+)
+
 type Marketplace struct {
 	ID              int    `json:"id"`
 	BaseMarketplace int    `json:"base_marketplace"`
@@ -7,3 +19,39 @@ type Marketplace struct {
 	WarehouseID     string `json:"warehouse_id"`
 	AuthDataJson    []byte `json:"auth_data_json,omitempty"`
 }
+
+func (m *Marketplace) getIdentifierWildberries() (string, error) {
+	_, claims, err := utils.DecodeWildberriesJwt(m.AuthDataJson)
+	if err != nil {
+		return "", err
+	}
+	sellerId := claims["sid"].(string)
+	return sellerId, err
+}
+
+func (m *Marketplace) getIdentifierOzon() (string, error) {
+	if m.AuthDataJson == nil {
+		return "", nil
+	}
+	var authData map[string]interface{}
+	if err := json.Unmarshal(m.AuthDataJson, &authData); err != nil {
+		return "", errors.Wrap(err, "unmarshal AuthDataJson")
+	}
+	if identifier, ok := authData["clientId"].(string); ok {
+		return identifier, nil
+	}
+	return "", errors.New("identifier not found in AuthDataJson")
+}
+
+func (m *Marketplace) GetIdentifier() (string, error) {
+	switch m.BaseMarketplace {
+	case WildberriesBaseMarketplace:
+		return m.getIdentifierWildberries()
+	case OzonBaseMarketplace:
+		return m.getIdentifierOzon()
+	case YandexBaseMarketplace:
+		return "", errors.New("Yandex marketplace does not support identifier retrieval")
+	default:
+		return "", errors.Errorf("unknown base marketplace: %d", m.BaseMarketplace)
+	}
+}