package formatting

import (
	"encoding/json"
	"net/url"
)

type EMail struct {
	Address string  `json:"address,omitempty"`
	Cc      *string `json:"cc,omitempty"`
	Bcc     *string `json:"bcc,omitempty"`
	Subject *string `json:"subject,omitempty"`
	Content *string `json:"content,omitempty"`
}

func formatEMail(input string) (string, error) {
	var email EMail
	err := json.Unmarshal([]byte(input), &email)
	if err != nil {
		return "", err
	}

	query := url.Values{}

	if email.Subject != nil {
		query.Add("subject", *email.Subject)
	}

	if email.Cc != nil {
		query.Add("cc", *email.Cc)
	}

	if email.Bcc != nil {
		query.Add("bcc", *email.Bcc)
	}

	if email.Content != nil {
		query.Add("body", *email.Content)
	}

	barcodeString := "mailto:" + email.Address

	if len(query) > 0 {
		barcodeString += "?" + query.Encode()
	}

	return barcodeString, err
}