Merge remote-tracking branch 'origin/master'

svc/queries/last10_avg_purchase_price_cache.go

@@ -0,0 +1,86 @@
+package queries
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"strings"
+)
+
+type Last10AvgPurchasePriceRow struct {
+	ItemCode       string
+	CurrencyCode   string
+	SampleCount    int
+	AvgDocPrice    float64
+	MinInvoiceDate sql.NullString
+	MaxInvoiceDate sql.NullString
+}
+
+// LookupLast10AvgPurchasePriceByItemCodes reads from dbo.cache_last10_avg_purchase_price (Nebim/V3 MSSQL).
+// It is designed to be used in hot paths (save) where live invoice scans are too slow.
+func LookupLast10AvgPurchasePriceByItemCodes(ctx context.Context, mssqlDB *sql.DB, itemCodes []string) ([]Last10AvgPurchasePriceRow, error) {
+	if mssqlDB == nil {
+		return nil, fmt.Errorf("mssql db is nil")
+	}
+	codes := make([]string, 0, len(itemCodes))
+	seen := map[string]struct{}{}
+	for _, c := range itemCodes {
+		c = strings.TrimSpace(c)
+		if c == "" {
+			continue
+		}
+		if _, ok := seen[c]; ok {
+			continue
+		}
+		seen[c] = struct{}{}
+		codes = append(codes, c)
+	}
+	if len(codes) == 0 {
+		return []Last10AvgPurchasePriceRow{}, nil
+	}
+
+	valParts := make([]string, 0, len(codes))
+	args := make([]any, 0, len(codes))
+	for i, code := range codes {
+		valParts = append(valParts, fmt.Sprintf("(@p%d)", i+1))
+		args = append(args, code)
+	}
+
+	sqlText := fmt.Sprintf(`
+WITH C AS (
+  SELECT LTRIM(RTRIM(V.code)) AS ItemCode
+  FROM (VALUES %s) AS V(code)
+)
+SELECT
+  T.ItemCode,
+  T.Doc_CurrencyCode,
+  T.sample_count,
+  T.avg_doc_price,
+  CONVERT(varchar(10), T.min_invoice_date, 23) AS min_invoice_date,
+  CONVERT(varchar(10), T.max_invoice_date, 23) AS max_invoice_date
+FROM dbo.cache_last10_avg_purchase_price T WITH (NOLOCK)
+INNER JOIN C
+  ON C.ItemCode = T.ItemCode
+`, strings.Join(valParts, ","))
+
+	rows, err := mssqlDB.QueryContext(ctx, sqlText, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := make([]Last10AvgPurchasePriceRow, 0, len(codes))
+	for rows.Next() {
+		var r Last10AvgPurchasePriceRow
+		if err := rows.Scan(&r.ItemCode, &r.CurrencyCode, &r.SampleCount, &r.AvgDocPrice, &r.MinInvoiceDate, &r.MaxInvoiceDate); err != nil {
+			return nil, err
+		}
+		r.ItemCode = strings.TrimSpace(r.ItemCode)
+		r.CurrencyCode = strings.TrimSpace(strings.ToUpper(r.CurrencyCode))
+		out = append(out, r)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}