Prepara versao dev 1.0

backend/internal/service/company_service.go

@@ -0,0 +1,73 @@
+package service
+
+import (
+	"errors"
+
+	"aggios-app/backend/internal/domain"
+	"aggios-app/backend/internal/repository"
+
+	"github.com/google/uuid"
+)
+
+var (
+	ErrCompanyNotFound = errors.New("company not found")
+	ErrCNPJAlreadyExists = errors.New("CNPJ already registered")
+)
+
+// CompanyService handles company business logic
+type CompanyService struct {
+	companyRepo *repository.CompanyRepository
+}
+
+// NewCompanyService creates a new company service
+func NewCompanyService(companyRepo *repository.CompanyRepository) *CompanyService {
+	return &CompanyService{
+		companyRepo: companyRepo,
+	}
+}
+
+// Create creates a new company
+func (s *CompanyService) Create(req domain.CreateCompanyRequest, tenantID, userID uuid.UUID) (*domain.Company, error) {
+	// Check if CNPJ already exists for this tenant
+	exists, err := s.companyRepo.CNPJExists(req.CNPJ, tenantID)
+	if err != nil {
+		return nil, err
+	}
+	if exists {
+		return nil, ErrCNPJAlreadyExists
+	}
+
+	company := &domain.Company{
+		CNPJ:            req.CNPJ,
+		RazaoSocial:     req.RazaoSocial,
+		NomeFantasia:    req.NomeFantasia,
+		Email:           req.Email,
+		Telefone:        req.Telefone,
+		Status:          "active",
+		TenantID:        tenantID,
+		CreatedByUserID: &userID,
+	}
+
+	if err := s.companyRepo.Create(company); err != nil {
+		return nil, err
+	}
+
+	return company, nil
+}
+
+// GetByID retrieves a company by ID
+func (s *CompanyService) GetByID(id uuid.UUID) (*domain.Company, error) {
+	company, err := s.companyRepo.FindByID(id)
+	if err != nil {
+		return nil, err
+	}
+	if company == nil {
+		return nil, ErrCompanyNotFound
+	}
+	return company, nil
+}
+
+// ListByTenant retrieves all companies for a tenant
+func (s *CompanyService) ListByTenant(tenantID uuid.UUID) ([]*domain.Company, error) {
+	return s.companyRepo.FindByTenantID(tenantID)
+}