fix integration

backend/src/api/routers/transactions.go

@@ -348,6 +348,8 @@ func handleTransactionError(c *gin.Context, err error) {
 	switch {
 	case errors.Is(err, services.ErrTransactionNotFound):
 		c.JSON(http.StatusNotFound, dto.ErrorResponse{Message: err.Error()})
+	case errors.Is(err, services.ErrReceiptAlreadyExists):
+		c.JSON(http.StatusConflict, dto.ErrorResponse{Message: err.Error()})
 	case errors.Is(err, services.ErrTransactionPatch),
 		errors.Is(err, services.ErrReceiptLinkConflict),
 		errors.Is(err, services.ErrInvalidTransaction),

backend/src/api/routers/transactions_test.go

@@ -366,6 +366,32 @@ func TestTransactionsRouter_Create(t *testing.T) {
 		assert.Contains(t, w.Body.String(), "receipt not found")
 	})
 
+	t.Run("returns 409 when receipt already exists in photo flow", func(t *testing.T) {
+		r := gin.New()
+		apiV1 := r.Group("/api/v1")
+
+		ocrSvc := &ocrMock{recognizeFn: func(ctx context.Context, image []byte) (string, error) {
+			return "21.01.2026 " + validNumber, nil
+		}}
+		receiptSvc := &receiptServiceMock{getReceiptFn: func(ctx context.Context, req domain.AddReceiptRequest) (*domain.Receipt, error) {
+			return nil, services.ErrReceiptAlreadyExists
+		}}
+		creationService := services.NewTransactionCreationService(&transactionServiceMock{}, receiptSvc, ocrSvc)
+		router := NewTransactionsRouter(&transactionServiceMock{}, creationService)
+		router.RegisterRoutes(apiV1)
+
+		req := newMultipartRequest(t, map[string]string{
+			"family_id":  "1",
+			"created_by": "2",
+		})
+		w := httptest.NewRecorder()
+
+		r.ServeHTTP(w, req)
+
+		require.Equal(t, http.StatusConflict, w.Code)
+		assert.Contains(t, w.Body.String(), "receipt already exists")
+	})
+
 	t.Run("returns 503 when receipt provider is unavailable in photo flow", func(t *testing.T) {
 		r := gin.New()
 		apiV1 := r.Group("/api/v1")

backend/src/api/services/receipts.go

@@ -6,6 +6,7 @@ import (
 	"FamilyHub/src/repositories"
 	"FamilyHub/src/utils"
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"strings"
@@ -47,6 +48,10 @@ func (s *receiptService) AddReceipt(
 
 	receiptID, err := s.repo.Create(ctx, receipt)
 	if err != nil {
+		if errors.Is(err, repositories.ErrReceiptAlreadyExists) {
+			log.Printf("receipt persist failed: err=%v receipt=%s", ErrReceiptAlreadyExists, utils.ToLogJSON(receipt))
+			return nil, ErrReceiptAlreadyExists
+		}
 		log.Printf("receipt persist failed: err=%v receipt=%s", err, utils.ToLogJSON(receipt))
 		return nil, err
 	}

backend/src/api/services/transactions.go

@@ -34,6 +34,7 @@ var (
 	ErrTransactionNotFound  = errors.New("transaction not found")
 	ErrTransactionPatch     = errors.New("empty update payload")
 	ErrReceiptLinkConflict  = errors.New("receipt_id and detach_receipt cannot be used together")
+	ErrReceiptAlreadyExists = errors.New("receipt already exists")
 	ErrInvalidTransaction   = errors.New("type and category are required")
 	ErrReceiptNotFound      = errors.New("receipt not found")
 	ErrInvalidAnalytics     = errors.New("type must be income or expense")

backend/src/integrations/receiptProvider/receipt_provider.go

@@ -13,6 +13,8 @@ import (
 	"log"
 	"mime/multipart"
 	"net/http"
+	"net/http/cookiejar"
+	"regexp"
 	"strings"
 	"time"
 )
@@ -44,8 +46,10 @@ type receiptProvider struct {
 }
 
 func NewReceiptProvider() *receiptProvider {
+	jar, _ := cookiejar.New(nil)
 	return &receiptProvider{
 		client: &http.Client{
+			Jar:     jar,
 			Timeout: 60 * time.Second,
 			Transport: &http.Transport{
 				TLSClientConfig: &tls.Config{
@@ -56,56 +60,93 @@ func NewReceiptProvider() *receiptProvider {
 	}
 }
 
+// ===== SESSID EXTRACT =====
+
+var sessidRe = regexp.MustCompile(`"bitrix_sessid"\s*:\s*"([a-f0-9]+)"`)
+
+func extractSessID(html string) (string, error) {
+	matches := sessidRe.FindStringSubmatch(html)
+	if len(matches) < 2 {
+		return "", errors.New("bitrix_sessid not found")
+	}
+	return matches[1], nil
+}
+
+// ===== MAIN =====
+
 func (s *receiptProvider) GetReceipt(
 	ctx context.Context,
 	date, number string,
 ) (*domain.Receipt, error) {
-	url := "https://ch.info-center.by/ajax/check1.php"
-	var receipt domain.Receipt
 
-	body, contentType := buildMultipartBody(date, number)
-	requestBody := body.String()
-	log.Printf(
-		"external request: service=receipt_provider method=%s url=%s content_type=%s body=%q",
-		http.MethodPost,
-		url,
-		contentType,
-		utils.TruncateForLog(requestBody, utils.DefaultLogValueLimit),
-	)
+	portalURL := "https://ch.info-center.by/"
+
+	// ===== 1. GET PAGE =====
+	getReq, err := http.NewRequestWithContext(ctx, http.MethodGet, portalURL, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	getReq.Header.Set("User-Agent",
+		"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36")
+
+	resp, err := s.client.Do(getReq)
+	if err != nil {
+		return nil, err
+	}
+
+	htmlBytes, err := io.ReadAll(resp.Body)
+	resp.Body.Close()
+	if err != nil {
+		return nil, err
+	}
+
+	html := string(htmlBytes)
+
+	// ===== 2. EXTRACT SESSID =====
+	sessid, err := extractSessID(html)
+	if err != nil {
+		log.Printf("sessid extract error: %v", err)
+		return nil, err
+	}
+
+	log.Printf("sessid: %s", sessid)
+
+	// ===== 3. POST REQUEST =====
+	time.Sleep(300 * time.Millisecond)
+
+	postUrl := "https://ch.info-center.by/ajax/check1.php"
+
+	body, contentType := buildMultipartBody(date, number, sessid)
+
 	httpReq, err := http.NewRequestWithContext(
 		ctx,
 		http.MethodPost,
-		url,
+		postUrl,
 		body,
 	)
 	if err != nil {
-		log.Println(err.Error())
 		return nil, err
 	}
 
 	httpReq.Header.Set("Content-Type", contentType)
+	httpReq.Header.Set("Accept", "*/*")
+	httpReq.Header.Set("X-Requested-With", "XMLHttpRequest")
+	httpReq.Header.Set("Origin", "https://ch.info-center.by")
+	httpReq.Header.Set("Referer", "https://ch.info-center.by/")
 
-	resp, err := s.client.Do(httpReq)
+	resp, err = s.client.Do(httpReq)
 	if err != nil {
-		log.Printf("external response: service=receipt_provider method=%s url=%s err=%v", http.MethodPost, url, err)
 		return nil, err
 	}
 	defer resp.Body.Close()
 
-	responseBody, readErr := io.ReadAll(resp.Body)
-	if readErr != nil {
-		log.Printf("failed to read external service response body: %v", readErr)
-		return nil, readErr
+	responseBody, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
 	}
 
 	bodyText := strings.TrimSpace(string(responseBody))
-	log.Printf(
-		"external response: service=receipt_provider method=%s url=%s status=%d body=%q",
-		http.MethodPost,
-		url,
-		resp.StatusCode,
-		utils.TruncateForLog(bodyText, utils.DefaultLogValueLimit),
-	)
 
 	if resp.StatusCode != http.StatusOK {
 		return nil, &ExternalServiceError{
@@ -114,33 +155,33 @@ func (s *receiptProvider) GetReceipt(
 		}
 	}
 
+	// ===== PARSE =====
 	var raw struct {
 		Message map[string]interface{} `json:"message"`
 	}
+
 	if err := json.Unmarshal(responseBody, &raw); err != nil {
-		log.Printf("external service returned invalid json: %v", err)
 		return nil, err
 	}
 
 	bytes_, _ := json.Marshal(raw.Message)
 
+	var receipt domain.Receipt
 	if err := json.Unmarshal(bytes_, &receipt); err != nil {
 		return nil, err
 	}
 
 	if receipt.IssuedAtRaw == "" {
-		log.Printf("external response parse failed: service=receipt_provider err=%v date=%s number=%s", ErrReceiptNotFound, date, number)
 		return nil, ErrReceiptNotFound
 	}
 
 	positions, err := parsePositions(receipt.PositionsRaw)
 	if err != nil {
-		log.Printf("failed to parse positions: %s", err.Error())
 		return nil, err
 	}
+
 	receipt.IssuedAt, err = utils.ParseIssuedAt(receipt.IssuedAtRaw)
 	if err != nil {
-		log.Printf("failed to parse issued at: %s", err.Error())
 		return nil, err
 	}
 
@@ -151,13 +192,11 @@ func (s *receiptProvider) GetReceipt(
 
 		p.ProductCount, err = utils.ParseFloat(p.ProductCountRaw)
 		if err != nil {
-			log.Printf("failed to parse product count: %s", err.Error())
 			return nil, err
 		}
 
 		p.Amount, err = utils.ParseFloat(p.AmountRaw)
 		if err != nil {
-			log.Printf("failed to parse amount: %s", err.Error())
 			return nil, err
 		}
 
@@ -168,7 +207,9 @@ func (s *receiptProvider) GetReceipt(
 	return &receipt, nil
 }
 
-func buildMultipartBody(date, number string) (*bytes.Buffer, string) {
+// ===== MULTIPART =====
+
+func buildMultipartBody(date, number, sessid string) (*bytes.Buffer, string) {
 	body := &bytes.Buffer{}
 	writer := multipart.NewWriter(body)
 
@@ -180,6 +221,9 @@ func buildMultipartBody(date, number string) (*bytes.Buffer, string) {
 	_ = writer.WriteField("orig_date", normalizedDate)
 	_ = writer.WriteField("orig_ui", number)
 
+	// 🔥 ВОТ ГЛАВНОЕ
+	_ = writer.WriteField("sessid", sessid)
+
 	_ = writer.Close()
 
 	return body, writer.FormDataContentType()

backend/src/repositories/receipts.go

@@ -7,8 +7,11 @@ import (
 	"log"
 
 	"FamilyHub/src/domain"
+	"github.com/lib/pq"
 )
 
+var ErrReceiptAlreadyExists = errors.New("receipt already exists")
+
 type ReceiptsRepository interface {
 	Create(ctx context.Context, receipt *domain.Receipt) (int64, error)
 	GetByID(ctx context.Context, id int64) (*domain.Receipt, error)
@@ -129,6 +132,9 @@ func (r *ReceiptsSQLRepository) Create(ctx context.Context, receipt *domain.Rece
 
 	err = tx.QueryRowContext(ctx, query, args...).Scan(&receiptID)
 	if err != nil {
+		if isReceiptAlreadyExistsError(err) {
+			return 0, ErrReceiptAlreadyExists
+		}
 		return 0, err
 	}
 
@@ -185,6 +191,15 @@ func (r *ReceiptsSQLRepository) Create(ctx context.Context, receipt *domain.Rece
 	return receiptID, nil
 }
 
+func isReceiptAlreadyExistsError(err error) bool {
+	var pqErr *pq.Error
+	if !errors.As(err, &pqErr) {
+		return false
+	}
+
+	return pqErr.Code == "23505" && pqErr.Constraint == "receipts_receipt_number_key"
+}
+
 func (r *ReceiptsSQLRepository) GetByID(ctx context.Context, id int64) (*domain.Receipt, error) {
 
 	var receipt domain.Receipt