codex/fix: inconsistent stock options and availability

internal/modules/inventory/product-warehouses/controllers/product_warehouse.controller.go

@@ -3,6 +3,7 @@ package controller
 import (
 	"math"
 	"strconv"
+	"strings"
 
 	"gitlab.com/mbugroup/lti-api.git/internal/modules/inventory/product-warehouses/dto"
 	service "gitlab.com/mbugroup/lti-api.git/internal/modules/inventory/product-warehouses/services"
@@ -27,11 +28,13 @@ func (u *ProductWarehouseController) GetAll(c *fiber.Ctx) error {
 	query := &validation.Query{
 		Page:            c.QueryInt("page", 1),
 		Limit:           c.QueryInt("limit", 10),
+		Search:          c.Query("search", ""),
 		ProductId:       uint(c.QueryInt("product_id", 0)),
 		WarehouseId:     uint(c.QueryInt("warehouse_id", 0)),
 		LocationId:      uint(c.QueryInt("location_id", 0)),
 		Flags:           c.Query("flags", ""),
 		KandangId:       uint(c.QueryInt("kandang_id", 0)),
+		AvailableOnly:   parseBoolQuery(c.Query("available_only", "")),
 		TransferContext: c.Query(utils.TransferContextKey, ""),
 		StockMode:       c.Query("stock_mode", ""),
 		Type:            c.Query("type", ""),
@@ -61,6 +64,15 @@ func (u *ProductWarehouseController) GetAll(c *fiber.Ctx) error {
 		})
 }
 
+func parseBoolQuery(raw string) bool {
+	switch strings.TrimSpace(strings.ToLower(raw)) {
+	case "1", "true", "yes", "y":
+		return true
+	default:
+		return false
+	}
+}
+
 func (u *ProductWarehouseController) GetOne(c *fiber.Ctx) error {
 	param := c.Params("id")
 

internal/modules/inventory/product-warehouses/controllers/product_warehouse.controller_test.go

@@ -34,7 +34,7 @@ func TestGetAllParsesLocationID(t *testing.T) {
 	ctrl := NewProductWarehouseController(stub)
 	app.Get("/product-warehouses", ctrl.GetAll)
 
-	req := httptest.NewRequest("GET", "/product-warehouses?location_id=16&kandang_id=59&limit=25", nil)
+	req := httptest.NewRequest("GET", "/product-warehouses?location_id=16&kandang_id=59&limit=25&search=tektrol&available_only=true", nil)
 	resp, err := app.Test(req)
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
@@ -54,6 +54,12 @@ func TestGetAllParsesLocationID(t *testing.T) {
 	if stub.lastQuery.Limit != 25 {
 		t.Fatalf("expected limit 25, got %d", stub.lastQuery.Limit)
 	}
+	if stub.lastQuery.Search != "tektrol" {
+		t.Fatalf("expected search tektrol, got %s", stub.lastQuery.Search)
+	}
+	if !stub.lastQuery.AvailableOnly {
+		t.Fatalf("expected available_only true")
+	}
 }
 
 func TestStubImplementsServiceContract(t *testing.T) {

internal/modules/inventory/product-warehouses/services/product_warehouse.service.go

@@ -71,6 +71,13 @@ func applyWarehouseSelectionFilter(db *gorm.DB, kandangID, locationID uint) *gor
 	}
 }
 
+func applyAvailableOnlyFilter(db *gorm.DB, availableOnly bool) *gorm.DB {
+	if !availableOnly {
+		return db
+	}
+	return db.Where("COALESCE(product_warehouses.qty, 0) > 0")
+}
+
 func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.ProductWarehouse, int64, error) {
 	if err := s.Validate.Struct(params); err != nil {
 		return nil, 0, err
@@ -151,12 +158,31 @@ func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query)
 			db = db.Where("product_id = ?", params.ProductId)
 		}
 
+		db = applyAvailableOnlyFilter(db, params.AvailableOnly)
+
 		db = applyWarehouseSelectionFilter(db, params.KandangId, params.LocationId)
 
 		if params.WarehouseId != 0 {
 			db = db.Where("warehouse_id = ?", params.WarehouseId)
 		}
 
+		if strings.TrimSpace(params.Search) != "" {
+			searchPattern := "%" + strings.TrimSpace(params.Search) + "%"
+			db = db.Where(
+				`(
+					EXISTS (
+						SELECT 1
+						FROM products p_search
+						WHERE p_search.id = product_warehouses.product_id
+						  AND p_search.name ILIKE ?
+					)
+					OR w_scope.name ILIKE ?
+				)`,
+				searchPattern,
+				searchPattern,
+			)
+		}
+
 		if len(marketingTypes) > 0 {
 			flagSet := make(map[string]struct{})
 			for _, t := range marketingTypes {

internal/modules/inventory/product-warehouses/services/product_warehouse.service_test.go

@@ -49,6 +49,20 @@ func TestApplyWarehouseSelectionFilterSupportsLocationOnlyQuery(t *testing.T) {
 	assertUintIDs(t, ids, []uint{1, 2, 3})
 }
 
+func TestApplyAvailableOnlyFilterRemovesZeroQtyRows(t *testing.T) {
+	db := setupProductWarehouseServiceTestDB(t)
+
+	var ids []uint
+	err := applyAvailableOnlyFilter(baseProductWarehouseSelectionQuery(db), true).
+		Order("product_warehouses.id").
+		Pluck("product_warehouses.id", &ids).Error
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	assertUintIDs(t, ids, []uint{1, 2, 4})
+}
+
 func setupProductWarehouseServiceTestDB(t *testing.T) *gorm.DB {
 	t.Helper()
 
@@ -67,18 +81,19 @@ func setupProductWarehouseServiceTestDB(t *testing.T) *gorm.DB {
 		)`,
 		`CREATE TABLE product_warehouses (
 			id INTEGER PRIMARY KEY,
-			warehouse_id INTEGER NOT NULL
+			warehouse_id INTEGER NOT NULL,
+			qty NUMERIC NULL
 		)`,
 		`INSERT INTO warehouses (id, type, location_id, kandang_id, deleted_at) VALUES
 			(1, 'KANDANG', 101, 11, NULL),
 			(2, 'LOKASI', 101, NULL, NULL),
 			(3, 'KANDANG', 101, 12, NULL),
 			(4, 'LOKASI', 102, NULL, NULL)`,
-		`INSERT INTO product_warehouses (id, warehouse_id) VALUES
+		`INSERT INTO product_warehouses (id, warehouse_id, qty) VALUES
-			(1, 1),
+			(1, 1, 10),
-			(2, 2),
+			(2, 2, 20),
-			(3, 3),
+			(3, 3, 0),
-			(4, 4)`,
+			(4, 4, 15)`,
 	}
 
 	for _, stmt := range statements {

internal/modules/inventory/product-warehouses/validations/product_warehouse.validation.go

@@ -15,11 +15,13 @@ type Update struct {
 type Query struct {
 	Page            int    `query:"page" validate:"omitempty,number,min=1"`
 	Limit           int    `query:"limit" validate:"omitempty,number,min=1,max=100"`
+	Search          string `query:"search" validate:"omitempty"`
 	ProductId       uint   `query:"product_id" validate:"omitempty,number,min=1"`
 	WarehouseId     uint   `query:"warehouse_id" validate:"omitempty,number,min=1"`
 	LocationId      uint   `query:"location_id" validate:"omitempty,number,min=1"`
 	Flags           string `query:"flags" validate:"omitempty"`
 	KandangId       uint   `query:"kandang_id" validate:"omitempty,number,min=1"`
+	AvailableOnly   bool   `query:"available_only"`
 	TransferContext string `query:"transfer_context" validate:"omitempty,oneof=inventory_transfer"`
 	StockMode       string `query:"stock_mode" validate:"omitempty,oneof=exclude_chickin"`
 	Type            string `query:"type" validate:"omitempty"`