package userproduct

import "time"

// UserProduct is a user's food item in their pantry.
type UserProduct struct {
	ID               string    `json:"id"`
	UserID           string    `json:"user_id"`
	PrimaryProductID *string   `json:"primary_product_id"`
	Name             string    `json:"name"`
	Quantity         float64   `json:"quantity"`
	Unit             string    `json:"unit"`
	Category         *string   `json:"category"`
	StorageDays      int       `json:"storage_days"`
	AddedAt          time.Time `json:"added_at"`
	ExpiresAt        time.Time `json:"expires_at"`
	DaysLeft         int       `json:"days_left"`
	ExpiringSoon     bool      `json:"expiring_soon"`
}

// CreateRequest is the body for POST /user-products.
type CreateRequest struct {
	PrimaryProductID *string  `json:"primary_product_id"`
	// Accept "mapping_id" as a legacy alias for backward compatibility.
	MappingID        *string  `json:"mapping_id"`
	Name             string   `json:"name"`
	Quantity         float64  `json:"quantity"`
	Unit             string   `json:"unit"`
	Category         *string  `json:"category"`
	StorageDays      int      `json:"storage_days"`
}

// UpdateRequest is the body for PUT /user-products/{id}.
// All fields are optional (nil = keep existing value).
type UpdateRequest struct {
	Name        *string  `json:"name"`
	Quantity    *float64 `json:"quantity"`
	Unit        *string  `json:"unit"`
	Category    *string  `json:"category"`
	StorageDays *int     `json:"storage_days"`
}