package lulu

import "github.com/shopspring/decimal"

// Cost is the cost of a print job.
type Cost struct {
	Fees             []Fee           `json:"fees"`
	LineItemCosts    []LineItemCost  `json:"line_item_costs"`
	ShipCost         FulfillmentCost `json:"shipping_cost"`
	FulfillmentCost  FulfillmentCost `json:"fulfillment_cost"`
	TotalTax         decimal.Decimal `json:"total_tax"`
	TotalCostExclTax decimal.Decimal `json:"total_cost_excl_tax"`
	TotalCostInclTax decimal.Decimal `json:"total_cost_incl_tax"`
	TotalDiscount    decimal.Decimal `json:"total_discount"`
	Currency         string          `json:"currency"`
}

type Fee struct {
	Currency         string          `json:"currency"`
	Type             string          `json:"fee_type"`
	Sku              string          `json:"sku"`
	TaxRate          decimal.Decimal `json:"tax_rate"`
	TotalCostExclTax decimal.Decimal `json:"total_cost_excl_tax"`
	TotalCostInclTax decimal.Decimal `json:"total_cost_incl_tax"`
	TotalTax         decimal.Decimal `json:"total_tax"`
}

type FulfillmentCost struct {
	TotalCostExclTax decimal.Decimal `json:"total_cost_excl_tax"`
	TotalCostInclTax decimal.Decimal `json:"total_cost_incl_tax"`
	TotalTax         decimal.Decimal `json:"total_tax"`
	TaxRate          decimal.Decimal `json:"tax_rate"`
}

type LineItemCost struct {
	CostExclDiscounts      decimal.Decimal `json:"cost_excl_discounts"`
	TotalTax               decimal.Decimal `json:"total_tax"`
	TaxRate                decimal.Decimal `json:"tax_rate"`
	Quantity               uint            `json:"quantity"`
	TotalCostExclTax       decimal.Decimal `json:"total_cost_excl_tax"`
	TotalCostExclDiscounts decimal.Decimal `json:"total_cost_excl_discounts"`
	TotalCostInclTax       decimal.Decimal `json:"total_cost_incl_tax"`
	Discounts              []Discount      `json:"discounts"`
	UnitTierCost           decimal.Decimal `json:"unit_tier_cost"`
}

type Discount struct {
	Amount      decimal.Decimal `json:"amount"`
	Description string          `json:"description"`
}

type CostLineItem struct {
	NPages   uint  `json:"page_count"`
	Mfg      PkgId `json:"pod_package_id"`
	Quantity uint  `json:"quantity"`
}

type costReq struct {
	Items    []CostLineItem  `json:"line_items"`
	ShipAddr ShippingAddress `json:"shipping_address"`
	ShipOpt  ShippingLevel   `json:"shipping_option"`
}

type costResp struct {
	AddressValidation ShippingAddressValidation `json:"shipping_address"`
	Fees              []Fee                     `json:"fees"`
	LineItemCosts     []LineItemCost            `json:"line_item_costs"`
	ShipCost          FulfillmentCost           `json:"shipping_cost"`
	FulfillmentCost   FulfillmentCost           `json:"fulfillment_cost"`
	TotalTax          decimal.Decimal           `json:"total_tax"`
	TotalCostExclTax  decimal.Decimal           `json:"total_cost_excl_tax"`
	TotalCostInclTax  decimal.Decimal           `json:"total_cost_incl_tax"`
	TotalDiscount     decimal.Decimal           `json:"total_discount_amount"`
	Currency          string                    `json:"currency"`
}

func (resp costResp) cost() Cost {
	return Cost{
		Fees:             resp.Fees,
		LineItemCosts:    resp.LineItemCosts,
		ShipCost:         resp.ShipCost,
		FulfillmentCost:  resp.FulfillmentCost,
		TotalTax:         resp.TotalTax,
		TotalCostExclTax: resp.TotalCostExclTax,
		TotalCostInclTax: resp.TotalCostInclTax,
		TotalDiscount:    resp.TotalDiscount,
		Currency:         resp.Currency,
	}
}