added filter and tag for ingredients

models/models.go

@@ -24,6 +24,20 @@ type Ingredient struct {
 	UserID int    `json:"user_id"`
 	Name   string `json:"name"`
 	Unit   string `json:"unit"` // e.g., "grams", "ml", "cups", "pieces", "tbsp"
+	Tags   []Tag  `json:"tags,omitempty"`
+}
+
+// Tag represents a tag for categorizing ingredients
+type Tag struct {
+	ID     int    `json:"id"`
+	UserID int    `json:"user_id"`
+	Name   string `json:"name"`
+}
+
+// IngredientTag represents the many-to-many relationship between ingredients and tags
+type IngredientTag struct {
+	IngredientID int `json:"ingredient_id"`
+	TagID        int `json:"tag_id"`
 }
 
 // Meal represents a meal recipe