Merge remote-tracking branch 'origin/master'

svc/queries/product_pricing.go

@@ -5,17 +5,22 @@ import (
 	"bssapp-backend/models"
 	"context"
 	"database/sql"
-	"fmt"
+	"strconv"
 	"strings"
 	"time"
 )
 
-func GetProductPricingList(ctx context.Context, limit int, offset int) ([]models.ProductPricing, error) {
+func GetProductPricingList(ctx context.Context, limit int, afterProductCode string) ([]models.ProductPricing, error) {
 	if limit <= 0 {
 		limit = 500
 	}
-	if offset < 0 {
-		offset = 0
+	afterProductCode = strings.TrimSpace(afterProductCode)
+
+	cursorFilter := ""
+	args := make([]any, 0, 1)
+	if afterProductCode != "" {
+		cursorFilter = "WHERE bp.ProductCode > @p1"
+		args = append(args, afterProductCode)
 	}
 
 	query := `
@@ -36,11 +41,11 @@ func GetProductPricingList(ctx context.Context, limit int, offset int) ([]models
 			  AND LEN(LTRIM(RTRIM(ProductCode))) = 13
 		),
 		paged_products AS (
-			SELECT
+			SELECT TOP (` + strconv.Itoa(limit) + `)
 				bp.ProductCode
 			FROM base_products bp
+			` + cursorFilter + `
 			ORDER BY bp.ProductCode
-			OFFSET %d ROWS FETCH NEXT %d ROWS ONLY
 		),
 		latest_base_price AS (
 			SELECT
@@ -182,7 +187,6 @@ func GetProductPricingList(ctx context.Context, limit int, offset int) ([]models
 			ON st.ItemCode = bp.ProductCode
 		ORDER BY bp.ProductCode;
 	`
-	query = fmt.Sprintf(query, offset, limit)
 
 	var (
 		rows    *sql.Rows
@@ -190,7 +194,7 @@ func GetProductPricingList(ctx context.Context, limit int, offset int) ([]models
 	)
 	for attempt := 1; attempt <= 3; attempt++ {
 		var err error
-		rows, err = db.MssqlDB.QueryContext(ctx, query)
+		rows, err = db.MssqlDB.QueryContext(ctx, query, args...)
 		if err == nil {
 			rowsErr = nil
 			break

svc/routes/product_pricing.go

@@ -35,14 +35,9 @@ func GetProductPricingListHandler(w http.ResponseWriter, r *http.Request) {
 			limit = parsed
 		}
 	}
-	offset := 0
-	if raw := strings.TrimSpace(r.URL.Query().Get("offset")); raw != "" {
-		if parsed, err := strconv.Atoi(raw); err == nil && parsed >= 0 && parsed <= 1000000 {
-			offset = parsed
-		}
-	}
+	afterProductCode := strings.TrimSpace(r.URL.Query().Get("after_product_code"))
 
-	rows, err := queries.GetProductPricingList(ctx, limit+1, offset)
+	rows, err := queries.GetProductPricingList(ctx, limit+1, afterProductCode)
 	if err != nil {
 		if isPricingTimeoutLike(err, ctx.Err()) {
 			log.Printf(
@@ -71,16 +66,21 @@ func GetProductPricingListHandler(w http.ResponseWriter, r *http.Request) {
 	if hasMore {
 		rows = rows[:limit]
 	}
+	nextCursor := ""
+	if hasMore && len(rows) > 0 {
+		nextCursor = strings.TrimSpace(rows[len(rows)-1].ProductCode)
+	}
 
 	log.Printf(
-		"[ProductPricing] trace=%s success user=%s id=%d limit=%d offset=%d count=%d has_more=%t duration_ms=%d",
+		"[ProductPricing] trace=%s success user=%s id=%d limit=%d after=%q count=%d has_more=%t next=%q duration_ms=%d",
 		traceID,
 		claims.Username,
 		claims.ID,
 		limit,
-		offset,
+		afterProductCode,
 		len(rows),
 		hasMore,
+		nextCursor,
 		time.Since(started).Milliseconds(),
 	)
 
@@ -90,6 +90,9 @@ func GetProductPricingListHandler(w http.ResponseWriter, r *http.Request) {
 	} else {
 		w.Header().Set("X-Has-More", "false")
 	}
+	if nextCursor != "" {
+		w.Header().Set("X-Next-Cursor", nextCursor)
+	}
 	_ = json.NewEncoder(w).Encode(rows)
 }
 

ui/src/pages/ProductPricing.vue

@@ -315,7 +315,7 @@ import { useProductPricingStore } from 'src/stores/ProductPricingStore'
 
 const store = useProductPricingStore()
 const FETCH_LIMIT = 500
-const currentOffset = ref(0)
+const nextCursor = ref('')
 const loadingMore = ref(false)
 
 const usdToTry = 38.25
@@ -852,14 +852,14 @@ function clearAllCurrencies () {
 }
 
 async function fetchChunk ({ reset = false } = {}) {
-  const offset = reset ? 0 : currentOffset.value
+  const afterProductCode = reset ? '' : nextCursor.value
   const result = await store.fetchRows({
     limit: FETCH_LIMIT,
-    offset,
+    afterProductCode,
     append: !reset
   })
   const fetched = Number(result?.fetched) || 0
-  currentOffset.value = offset + fetched
+  nextCursor.value = String(result?.nextCursor || '')
   return fetched
 }
 
@@ -894,7 +894,7 @@ async function reloadData () {
   console.info('[product-pricing][ui] reload:start', {
     at: new Date(startedAt).toISOString()
   })
-  currentOffset.value = 0
+  nextCursor.value = ''
   await fetchChunk({ reset: true })
   await ensureEnoughVisibleRows(120, 6)
   console.info('[product-pricing][ui] reload:done', {

ui/src/stores/ProductPricingStore.js

@@ -10,9 +10,9 @@ function toNumber (value) {
   return Number.isFinite(n) ? Number(n.toFixed(2)) : 0
 }
 
-function mapRow (raw, index, offset = 0) {
+function mapRow (raw, index, baseIndex = 0) {
   return {
-    id: offset + index + 1,
+    id: baseIndex + index + 1,
     productCode: toText(raw?.ProductCode),
     stockQty: toNumber(raw?.StockQty),
     stockEntryDate: toText(raw?.StockEntryDate),
@@ -64,27 +64,31 @@ export const useProductPricingStore = defineStore('product-pricing-store', {
       this.loading = true
       this.error = ''
       const limit = Number(options?.limit) > 0 ? Number(options.limit) : 500
-      const offset = Number(options?.offset) >= 0 ? Number(options.offset) : 0
+      const afterProductCode = toText(options?.afterProductCode)
       const append = Boolean(options?.append)
+      const baseIndex = append ? this.rows.length : 0
       const startedAt = Date.now()
       console.info('[product-pricing][frontend] request:start', {
         at: new Date(startedAt).toISOString(),
         timeout_ms: 180000,
         limit,
-        offset,
+        after_product_code: afterProductCode || null,
         append
       })
       try {
+        const params = { limit }
+        if (afterProductCode) params.after_product_code = afterProductCode
         const res = await api.request({
           method: 'GET',
           url: '/pricing/products',
-          params: { limit, offset },
+          params,
           timeout: 180000
         })
         const traceId = res?.headers?.['x-trace-id'] || null
         const hasMoreHeader = String(res?.headers?.['x-has-more'] || '').toLowerCase()
+        const nextCursorHeader = toText(res?.headers?.['x-next-cursor'])
         const data = Array.isArray(res?.data) ? res.data : []
-        const mapped = data.map((x, i) => mapRow(x, i, offset))
+        const mapped = data.map((x, i) => mapRow(x, i, baseIndex))
         if (append) {
           const merged = [...this.rows]
           const seen = new Set(this.rows.map((x) => x?.productCode))
@@ -104,12 +108,14 @@ export const useProductPricingStore = defineStore('product-pricing-store', {
           duration_ms: Date.now() - startedAt,
           row_count: this.rows.length,
           fetched_count: mapped.length,
-          has_more: this.hasMore
+          has_more: this.hasMore,
+          next_cursor: nextCursorHeader || null
         })
         return {
           traceId,
           fetched: mapped.length,
-          hasMore: this.hasMore
+          hasMore: this.hasMore,
+          nextCursor: nextCursorHeader
         }
       } catch (err) {
         if (!append) this.rows = []