/*
 * Copyright 2026 Oleg Borodin <onborodin@gmail.com>
 *
 * This work is published and licensed under a Creative Commons
 * Attribution-NonCommercial-NoDerivatives 4.0 International License.
 *
 * Distribution of this work is permitted, but commercial use and
 * modifications are strictly prohibited.
 */
package client

import (
	"encoding/base64"
	"net/url"
	"path"
	"strings"
)

const (
	serviceAPI = "/v3/api/service/"
	fileAPI    = "/v3/api/file/"
	filesAPI   = "/v3/api/files/"
)

func encodeBasicAuth(username, password string) string {
	auth := username + ":" + password
	return "Basic " + base64.StdEncoding.EncodeToString([]byte(auth))
}

func convertServiceRefer(ref string) (string, error) {
	var err error
	var res string
	if !strings.Contains(ref, "://") {
		ref = "https://" + ref
	}
	url, err := url.Parse(ref)
	if err != nil {
		return res, err
	}
	url.Path = path.Clean(url.Path)
	url.Path = path.Join(serviceAPI, url.Path)
	url.User = nil
	res = url.String()
	return res, err
}

func convertFileRefer(ref string) (string, error) {
	var err error
	var res string
	if !strings.Contains(ref, "://") {
		ref = "https://" + ref
	}
	url, err := url.Parse(ref)
	if err != nil {
		return res, err
	}
	url.Path = path.Clean(url.Path)
	url.Path = path.Join(fileAPI, url.Path)
	url.User = nil
	res = url.String()
	return res, err
}

func convertFilesRefer(ref string) (string, error) {
	var err error
	var res string
	if !strings.Contains(ref, "://") {
		ref = "https://" + ref
	}
	url, err := url.Parse(ref)
	if err != nil {
		return res, err
	}
	url.Path = path.Clean(url.Path)
	url.Path = path.Join(filesAPI, url.Path)
	url.User = nil
	res = url.String()
	return res, err
}