0c34b6e781
- Remove CAS, as it no longer works for us - Remove other checks - Implement 15 minute greet timeout check - Fix chat logos - Ditch thirdparty logger, use stdlib log facility wrapper for logging
99 lines
3.6 KiB
Go
99 lines
3.6 KiB
Go
package moon
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import (
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"bunny-bot/internal/mylog"
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"math/rand/v2"
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"strings"
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"github.com/NicoNex/echotron/v3"
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)
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// greetings are the templates used to greet a newly joined member. The single
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// verb is replaced with the newcomer's computed display name. The fourth one is
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// intentionally kept verbatim despite looking like a typo.
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var greetings = []string{
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"Дарована, %s. Представьтес, пожалуйста, и расскажите, что вас сюда привело.",
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"Добро пожаловать в наше скромное коммунити, %s. Представьтес, пожалуйста, и расскажите, что вас сюда привело.",
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"Доброе утро, день или вечер, %s. Представьтес, пожалуйста, и расскажите, что вас сюда привело.",
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"Наше вам с кисточкой тут, на канальчике, %s. Представьтес, пожалуйста, и расскажите, что вас сюда привело.",
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}
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// displayName builds the name substituted into a greeting for the given user.
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// Preference order: "FirstName LastName", then LastName alone, then FirstName
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// alone, then the username.
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func displayName(u *echotron.User) string {
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if u == nil {
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return ""
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}
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name := strings.TrimSpace(strings.Join([]string{u.FirstName, u.LastName}, " "))
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if name != "" {
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return name
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}
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return u.Username
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}
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// sendGreeting sends a randomly chosen greeting for the given newcomer into the chat.
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//
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// It returns the id of the greeting it sent and whether it was actually
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// delivered. Both matter: a newcomer who never received the question must not be
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// judged on their silence, and a newcomer who is banned later must have the
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// question taken back down.
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//
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// The mention makes the greeting a clickable link to the newcomer, and the
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// message is sent in HTML mode because that is the only mode in which an
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// arbitrary display name can be embedded safely — see greetMention.
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func sendGreeting(chatid int64, u *echotron.User) (int, bool) {
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// Everything below dereferences u, including the error paths that name the
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// user, so an entity with no id is refused here rather than crashing later.
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if !usableUser(u) {
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return 0, false
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}
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// math/rand is sufficient here: we pick one of four static templates, not a
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// secret or a security-relevant value.
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greeting := greetings[rand.IntN(len(greetings))] //nolint: gosec // G404
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text := strings.Replace(greeting, "%s", greetingAddressee(u), 1)
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res, err := Tg.SendMessage(text, chatid, &echotron.MessageOptions{
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ParseMode: echotron.HTML,
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})
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if err != nil {
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mylog.Errorf("GREETING NOT DELIVERED to user %d in chat %d: %s", u.ID, chatid, err)
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return 0, false
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}
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mylog.Debugf("Greeted user %d in chat %d", u.ID, chatid)
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// A response carrying no message still means the greeting was delivered; we
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// simply have no id to retract later.
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return sentMessageID(res), true
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}
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// greetingAddressee is the name the template's %s is replaced with: a mention of
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// the newcomer when they can be mentioned, and their plain display name when they
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// cannot, so an unmentionable user is still greeted rather than skipped.
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func greetingAddressee(u *echotron.User) string {
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if mention := greetMention(u); mention != "" {
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return mention
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}
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return displayName(u)
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}
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// sentMessageID pulls the id out of a send response, tolerating a response that
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// carries no message at all.
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func sentMessageID(res echotron.APIResponseMessage) int {
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if res.Result == nil {
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return 0
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}
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return res.Result.ID
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}
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/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */
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