start rmser

internal/infrastructure/repository/catalog/postgres.go

@@ -0,0 +1,84 @@
+package catalog
+
+import (
+	"rmser/internal/domain/catalog"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+)
+
+type pgRepository struct {
+	db *gorm.DB
+}
+
+func NewRepository(db *gorm.DB) catalog.Repository {
+	return &pgRepository{db: db}
+}
+
+func (r *pgRepository) SaveProducts(products []catalog.Product) error {
+	// Сортировка (родители -> дети)
+	sorted := sortProductsByHierarchy(products)
+	return r.db.Clauses(clause.OnConflict{
+		Columns:   []clause.Column{{Name: "id"}},
+		UpdateAll: true,
+	}).CreateInBatches(sorted, 100).Error
+}
+
+func (r *pgRepository) GetAll() ([]catalog.Product, error) {
+	var products []catalog.Product
+	err := r.db.Find(&products).Error
+	return products, err
+}
+
+// Вспомогательная функция сортировки
+func sortProductsByHierarchy(products []catalog.Product) []catalog.Product {
+	if len(products) == 0 {
+		return products
+	}
+	childrenMap := make(map[uuid.UUID][]catalog.Product)
+	var roots []catalog.Product
+	allIDs := make(map[uuid.UUID]struct{}, len(products))
+
+	for _, p := range products {
+		allIDs[p.ID] = struct{}{}
+	}
+
+	for _, p := range products {
+		if p.ParentID == nil {
+			roots = append(roots, p)
+		} else {
+			if _, exists := allIDs[*p.ParentID]; exists {
+				childrenMap[*p.ParentID] = append(childrenMap[*p.ParentID], p)
+			} else {
+				roots = append(roots, p)
+			}
+		}
+	}
+
+	result := make([]catalog.Product, 0, len(products))
+	queue := roots
+	for len(queue) > 0 {
+		current := queue[0]
+		queue = queue[1:]
+		result = append(result, current)
+		if children, ok := childrenMap[current.ID]; ok {
+			queue = append(queue, children...)
+			delete(childrenMap, current.ID)
+		}
+	}
+	for _, remaining := range childrenMap {
+		result = append(result, remaining...)
+	}
+	return result
+}
+
+// GetActiveGoods возвращает только активные товары (не удаленные, тип GOODS)
+func (r *pgRepository) GetActiveGoods() ([]catalog.Product, error) {
+	var products []catalog.Product
+	// iikoRMS: GOODS - товары, PREPARED - заготовки (иногда их тоже покупают)
+	err := r.db.Where("is_deleted = ? AND type IN ?", false, []string{"GOODS"}).
+		Order("name ASC").
+		Find(&products).Error
+	return products, err
+}