package entity

import (
	"time"
)

// use to display a product
type ProductDisplay struct {
	ID            int       `json:"id"`
	Name          string    `json:"name"`
	Description   *string   `json:"description"`
	Price         float64   `json:"price"`
	OriginalPrice float64   `json:"original_price"`
	Quantity      int       `json:"quantity"`
	Status        bool      `json:"status"`
	CreatedAt     time.Time `json:"created_at"`
	UpdatedAt     time.Time `json:"updated_at"`
}

// use to create or update a product
type ProductCreateUpdate struct {
	ProductDisplay
}

// Func that will check non empty field on ProductDisplay and update product
func ValidateUpdate(product *ProductCreateUpdate, p *ProductDisplay) *ProductCreateUpdate {
	if product.Price > p.OriginalPrice {
		product.Price = p.Price
		product.OriginalPrice = p.OriginalPrice
	}

	if product.Quantity < 0 {
		product.Quantity = 0
	}

	product.ID = p.ID
	product.Name = p.Name
	product.Description = p.Description
	product.Price = p.Price
	product.OriginalPrice = p.OriginalPrice
	product.Quantity = p.Quantity
	product.Status = p.Status
	product.CreatedAt = p.CreatedAt
	product.UpdatedAt = p.UpdatedAt

	return product
}

func ProductDisplayFormatter(product *ProductCreateUpdate) (p *ProductDisplay) {
	p = &ProductDisplay{
		ID:            product.ID,
		Name:          product.Name,
		Description:   product.Description,
		Price:         product.Price,
		OriginalPrice: product.OriginalPrice,
		Quantity:      product.Quantity,
		Status:        product.Status,
		CreatedAt:     product.CreatedAt,
		UpdatedAt:     product.UpdatedAt,
	}

	return
}