feat(cli): implement remove-expired to automatically remove expired items

src/pantry/core/inventory.go

@@ -90,6 +90,24 @@ func (p *Inventory) RemoveItem(name string, quantity float64, expiry *time.Time)
 	fmt.Printf("Item not found or no matching expiry.\n")
 }
 
+func (p *Inventory) RemoveExpired() int {
+	removed := 0
+	today := time.Now()
+
+	for i := 0; i < len(p.Items); {
+		item := p.Items[i]
+
+		if item.Expiry != nil && item.Expiry.Before(today) {
+			p.Items = append(p.Items[:i], p.Items[i+1:]...)
+			fmt.Printf("Removed expired %s (expiry: %s)\n", item.Name, item.Expiry.Format("2006-01-02"))
+			removed++
+		} else {
+			i++
+		}
+	}
+	return removed
+}
+
 func (p *Inventory) ListItems() {
 	if len(p.Items) == 0 {
 		fmt.Printf("Pantry is empty\n")

src/pantry/main.go

@@ -102,6 +102,15 @@ func main() {
 			fmt.Println("Failed to save inventory:", err)
 		}
 
+	case "remove-expired":
+		removed := inventory.RemoveExpired()
+		err = core.SaveInventory(dataFile, inventory)
+		if err != nil {
+			fmt.Println("Failed to save inventory:", err)
+		} else {
+			fmt.Printf("Removed %d expired items\n", removed)
+		}
+
 	case "list":
 		inventory.ListItems()