feat: redesign project pricing export — FOB/DDP basis, variant filename, article column

- Add FOB/DDP basis to export options; DDP multiplies all prices ×1.3
- Rename export file from "pricing" to "{FOB|DDP} {variant}" (e.g. "FOB v1")
- Fix server article missing from CSV summary row (PN вендора column)
- Skip per-row breakdown when neither LOT nor BOM is selected
- Remove empty separator rows between configurations
- Redesign export modal: split into Артикул / Цены / Базис поставки sections

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

internal/handlers/export.go

@@ -53,6 +53,8 @@ type ProjectExportOptionsRequest struct {
 	IncludeEstimate   bool    `json:"include_estimate"`
 	IncludeStock      bool    `json:"include_stock"`
 	IncludeCompetitor bool    `json:"include_competitor"`
+	Basis             string  `json:"basis"`       // "fob" or "ddp"
+	SaleMarkup        float64 `json:"sale_markup"` // DDP multiplier; 0 defaults to 1.3
 }
 
 func (h *ExportHandler) ExportCSV(c *gin.Context) {
@@ -252,6 +254,8 @@ func (h *ExportHandler) ExportProjectPricingCSV(c *gin.Context) {
 		IncludeEstimate:   req.IncludeEstimate,
 		IncludeStock:      req.IncludeStock,
 		IncludeCompetitor: req.IncludeCompetitor,
+		Basis:             req.Basis,
+		SaleMarkup:        req.SaleMarkup,
 	}
 
 	data, err := h.exportService.ProjectToPricingExportData(result.Configs, opts)
@@ -260,7 +264,15 @@ func (h *ExportHandler) ExportProjectPricingCSV(c *gin.Context) {
 		return
 	}
 
-	filename := fmt.Sprintf("%s (%s) pricing.csv", time.Now().Format("2006-01-02"), project.Code)
+	basisLabel := "FOB"
+	if strings.EqualFold(strings.TrimSpace(req.Basis), "ddp") {
+		basisLabel = "DDP"
+	}
+	variantLabel := strings.TrimSpace(project.Variant)
+	if variantLabel == "" {
+		variantLabel = "main"
+	}
+	filename := fmt.Sprintf("%s (%s) %s %s.csv", time.Now().Format("2006-01-02"), project.Code, basisLabel, variantLabel)
 	c.Header("Content-Type", "text/csv; charset=utf-8")
 	c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
 

internal/services/export.go

@@ -61,6 +61,19 @@ type ProjectPricingExportOptions struct {
 	IncludeEstimate   bool    `json:"include_estimate"`
 	IncludeStock      bool    `json:"include_stock"`
 	IncludeCompetitor bool    `json:"include_competitor"`
+	Basis             string  `json:"basis"`       // "fob" or "ddp"; empty defaults to "fob"
+	SaleMarkup        float64 `json:"sale_markup"` // DDP multiplier; 0 defaults to 1.3
+}
+
+func (o ProjectPricingExportOptions) saleMarkupFactor() float64 {
+	if o.SaleMarkup > 0 {
+		return o.SaleMarkup
+	}
+	return 1.3
+}
+
+func (o ProjectPricingExportOptions) isDDP() bool {
+	return strings.EqualFold(strings.TrimSpace(o.Basis), "ddp")
 }
 
 type ProjectPricingExportData struct {
@@ -251,19 +264,17 @@ func (s *ExportService) ToPricingCSV(w io.Writer, data *ProjectPricingExportData
 		return fmt.Errorf("failed to write pricing header: %w", err)
 	}
 
-	for idx, cfg := range data.Configs {
+	writeRows := opts.IncludeLOT || opts.IncludeBOM
+	for _, cfg := range data.Configs {
 		if err := csvWriter.Write(pricingConfigSummaryRow(cfg, opts)); err != nil {
 			return fmt.Errorf("failed to write config summary row: %w", err)
 		}
+		if writeRows {
 			for _, row := range cfg.Rows {
 				if err := csvWriter.Write(pricingCSVRow(row, opts)); err != nil {
 					return fmt.Errorf("failed to write pricing row: %w", err)
 				}
 			}
-		if idx < len(data.Configs)-1 {
-			if err := csvWriter.Write([]string{}); err != nil {
-				return fmt.Errorf("failed to write separator row: %w", err)
-			}
 		}
 	}
 
@@ -424,6 +435,9 @@ func (s *ExportService) buildPricingExportBlock(cfg *models.Configuration, opts
 				Competitor:  totalForUnitPrice(priceMap[item.LotName].Competitor, item.Quantity),
 			})
 		}
+		if opts.isDDP() {
+			applyDDPMarkup(block.Rows, opts.saleMarkupFactor())
+		}
 		return block, nil
 	}
 
@@ -443,9 +457,29 @@ func (s *ExportService) buildPricingExportBlock(cfg *models.Configuration, opts
 		})
 	}
 
+	if opts.isDDP() {
+		applyDDPMarkup(block.Rows, opts.saleMarkupFactor())
+	}
+
 	return block, nil
 }
 
+func applyDDPMarkup(rows []ProjectPricingExportRow, factor float64) {
+	for i := range rows {
+		rows[i].Estimate = scaleFloatPtr(rows[i].Estimate, factor)
+		rows[i].Stock = scaleFloatPtr(rows[i].Stock, factor)
+		rows[i].Competitor = scaleFloatPtr(rows[i].Competitor, factor)
+	}
+}
+
+func scaleFloatPtr(v *float64, factor float64) *float64 {
+	if v == nil {
+		return nil
+	}
+	result := *v * factor
+	return &result
+}
+
 // resolveCategories returns lot_name → category map.
 // Primary source: pricelist items (lot_category). Fallback: local_components table.
 func (s *ExportService) resolveCategories(pricelistID *uint, lotNames []string) map[string]string {
@@ -735,7 +769,7 @@ func pricingConfigSummaryRow(cfg ProjectPricingExportConfig, opts ProjectPricing
 		record = append(record, "")
 	}
 	record = append(record,
-		"",
+		emptyDash(cfg.Article),
 		emptyDash(cfg.Name),
 		fmt.Sprintf("%d", exportPositiveInt(cfg.ServerCount, 1)),
 	)

web/templates/project_detail.html

@@ -113,23 +113,31 @@
 
 <div id="project-export-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
     <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4 p-6">
-        <h2 class="text-xl font-semibold mb-4">Экспорт CSV</h2>
+        <h2 class="text-xl font-semibold mb-5">Экспорт CSV</h2>
-        <div class="space-y-4">
+        <div class="space-y-5">
-            <div class="text-sm text-gray-600">
+
-                Экспортирует проект в формате вкладки ценообразования. Если включён `BOM`, строки строятся по BOM; иначе по текущему Estimate.
+            <!-- Section 1: Артикул -->
-            </div>
+            <div>
-            <div class="space-y-3">
+                <p class="text-xs font-semibold uppercase tracking-wide text-gray-500 mb-2">Артикул</p>
+                <div class="space-y-2">
                     <label class="flex items-center gap-3 text-sm text-gray-700">
                         <input id="export-col-lot" type="checkbox" class="rounded border-gray-300" checked>
                         <span>LOT</span>
                     </label>
                     <label class="flex items-center gap-3 text-sm text-gray-700">
                         <input id="export-col-bom" type="checkbox" class="rounded border-gray-300">
-                    <span>BOM</span>
+                        <span>BOM <span class="text-gray-400 font-normal">(строки по BOM, иначе по Estimate)</span></span>
                     </label>
+                </div>
+            </div>
+
+            <!-- Section 2: Цены -->
+            <div>
+                <p class="text-xs font-semibold uppercase tracking-wide text-gray-500 mb-2">Цены</p>
+                <div class="space-y-2">
                     <label class="flex items-center gap-3 text-sm text-gray-700">
                         <input id="export-col-estimate" type="checkbox" class="rounded border-gray-300" checked>
-                    <span>Estimate</span>
+                        <span>Est</span>
                     </label>
                     <label class="flex items-center gap-3 text-sm text-gray-700">
                         <input id="export-col-stock" type="checkbox" class="rounded border-gray-300">
@@ -140,6 +148,25 @@
                         <span>Конкуренты</span>
                     </label>
                 </div>
+            </div>
+
+            <!-- Section 3: Базис поставки -->
+            <div>
+                <p class="text-xs font-semibold uppercase tracking-wide text-gray-500 mb-2">Базис поставки</p>
+                <div class="flex gap-6">
+                    <label class="flex items-center gap-2 text-sm text-gray-700 cursor-pointer">
+                        <input type="radio" name="export-basis" value="fob" class="border-gray-300" checked>
+                        <span class="font-medium">FOB</span>
+                        <span class="text-gray-400">— Цена покупки</span>
+                    </label>
+                    <label class="flex items-center gap-2 text-sm text-gray-700 cursor-pointer">
+                        <input type="radio" name="export-basis" value="ddp" class="border-gray-300">
+                        <span class="font-medium">DDP</span>
+                        <span class="text-gray-400">— Цена продажи ×1,3</span>
+                    </label>
+                </div>
+            </div>
+
             <div id="project-export-status" class="hidden text-sm rounded border px-3 py-2"></div>
         </div>
         <div class="flex justify-end space-x-3 mt-6">
@@ -1475,7 +1502,8 @@ async function exportProject() {
         include_bom: !!document.getElementById('export-col-bom')?.checked,
         include_estimate: !!document.getElementById('export-col-estimate')?.checked,
         include_stock: !!document.getElementById('export-col-stock')?.checked,
-        include_competitor: !!document.getElementById('export-col-competitor')?.checked
+        include_competitor: !!document.getElementById('export-col-competitor')?.checked,
+        basis: document.querySelector('input[name="export-basis"]:checked')?.value || 'fob'
     };
 
     if (submitBtn) submitBtn.disabled = true;