1package telegram
  2
  3import (
  4	"fmt"
  5	"regexp"
  6
  7	tgbotapi "github.com/BiRabittoh/telegram-bot-api/v5"
  8)
  9
 10type Replacer struct {
 11	Regex  *regexp.Regexp
 12	Format string
 13}
 14
 15var parseMode = "markdown"
 16var linkMessage = "[🔗](%s) Da %s."
 17var regexFlags = "(?i)(?m)"
 18var replacers = []Replacer{
 19	{
 20		Regex:  regexp.MustCompile(regexFlags + `(?:(?:https?:)?\/\/)?(?:(?:www|m)\.)?(?:(?:youtube(?:-nocookie)?\.com|youtu.be))(?:\/(?:[\w\-]+\?v=|embed\/|live\/|v\/|shorts\/)?)([\w\-]+)(\S+)?`),
 21		Format: "https://y.outube.duckdns.org/%s",
 22	},
 23	{
 24		Regex:  regexp.MustCompile(regexFlags + `(?:https?:\/\/)(?:www\.)?twitter\.com\/(?:#!\/)?(.*)\/status(?:es)?\/([^\/\?\s]+)`),
 25		Format: "https://fxtwitter.com/%s/status/%s",
 26	},
 27	{
 28		Regex:  regexp.MustCompile(regexFlags + `(?:https?:\/\/)?(?:www\.)?x\.com\/(?:#!\/)?(.*)\/status(?:es)?\/([^\/\?\s]+)`),
 29		Format: "https://fixupx.com/%s/status/%s",
 30	},
 31	{
 32		Regex:  regexp.MustCompile(regexFlags + `(?:https?:\/\/)?(?:www\.)?instagram\.com\/((?:reel)|p)\/([A-Za-z0-9_]{11})[\/\?\w=&]*`),
 33		Format: "https://ddinstagram.com/%s/%s",
 34	},
 35	{
 36		Regex:  regexp.MustCompile(regexFlags + `(?:https?:\/\/)?(?:(?:www)|(?:vm))?\.?tiktok\.com\/@([\w\d_.]+)\/(?:video)\/(\d+)`),
 37		Format: "https://www.vxtiktok.com/@%s/video/%s",
 38	},
 39	{
 40		Regex:  regexp.MustCompile(regexFlags + `(?:https?:\/\/)?(?:(?:www)|(?:vm))?\.?tiktok\.com\/([\w]+)\/?`),
 41		Format: "https://vm.vxtiktok.com/%s/",
 42	},
 43}
 44
 45func parseText(message string) []string {
 46	links := []string{}
 47
 48	for _, replacer := range replacers {
 49		foundMatches := replacer.Regex.FindStringSubmatch(message)
 50
 51		if len(foundMatches) == 0 {
 52			continue
 53		}
 54		captureGroups := foundMatches[1:]
 55
 56		var formatArgs []interface{}
 57		for _, match := range captureGroups {
 58			if match != "" {
 59				formatArgs = append(formatArgs, match)
 60			}
 61		}
 62
 63		formatted := fmt.Sprintf(replacer.Format, formatArgs...)
 64		links = append(links, formatted)
 65	}
 66	return links
 67}
 68
 69func getUserMention(user tgbotapi.User) string {
 70	return fmt.Sprintf("[@%s](tg://user?id=%d)", user.UserName, user.ID)
 71}
 72
 73func handleLinks(bot *tgbotapi.BotAPI, message *tgbotapi.Message) {
 74	links := []string{}
 75
 76	if message.Text != "" {
 77		textLinks := parseText(message.Text)
 78		links = append(links, textLinks...)
 79	}
 80
 81	if message.Caption != "" {
 82		captionLinks := parseText(message.Caption)
 83		links = append(links, captionLinks...)
 84	}
 85
 86	if len(links) == 0 {
 87		return
 88	}
 89
 90	user := getUserMention(*message.From)
 91
 92	for _, link := range links {
 93		text := fmt.Sprintf(linkMessage, link, user)
 94		msg := tgbotapi.NewMessage(message.Chat.ID, text)
 95		msg.MessageThreadID = message.MessageThreadID
 96		msg.ParseMode = parseMode
 97		msg.ReplyMarkup = inlineKeyboardFeedback
 98		bot.Send(msg)
 99	}
100
101}