package models

import (
	"fmt"
)

type PrintOption string

const (
	CoverPage PrintOption = "-o FrontCoverPage=Printed -o FrontCoverTray=BypassTray -o InputSlot=Tray1"
	Colored   PrintOption = "-o SelectColor=Color"
	Grayscale PrintOption = "-o SelectColor=Grayscale"
)

type PrintJob struct {
	Pdf     string
	Amount  uint
	Options []PrintOption
}

func NewPrintJob(shopItem ShopItem, variant ItemVariant, coverPage bool, amount uint) (PrintJob, error) {
	if shopItem.Pdf == "" {
		return PrintJob{}, fmt.Errorf("ShopItem has no PDF assigned")
	}

	if amount > 100 {
		return PrintJob{}, fmt.Errorf("Amount to big. This is denied for security reasons")
	}

	var result PrintJob
	result.Pdf = shopItem.Pdf
	result.Amount = amount

	if variant.Name == "Colored" {
		result.Options = append(result.Options, Colored)
	}

	if coverPage {
		result.Options = append(result.Options, CoverPage)
	}

	return result, nil
}

func (p *PrintJob) Execute() error {
	baseCommand := "lp -p KONICA_MINOLTA_KONICA_MINOLTA_bizhub_C258/Booklet "
	baseCommand += fmt.Sprintf("-n %v ", p.Amount)

	for _, option := range p.Options {
		baseCommand += fmt.Sprintf(" %v ", option)
	}

	baseCommand += fmt.Sprintf(" -- %s", p.Pdf)

	fmt.Println(baseCommand)
	return nil
}