Code refactor

handlers/join.go

@@ -0,0 +1,72 @@
+package handlers
+
+import (
+	"fmt"
+	"log"
+
+	utils "git.zio.sh/astra/telegram-approval-join/pkg/utils"
+	api "github.com/OvyFlash/telegram-bot-api"
+)
+
+// HandleJoinRequestResponse records the user's join reason and notifies admins.
+func (bot *Bot) HandleJoinRequestResponse(user *ExtendedChatJoinRequest, update *api.Message) {
+	if user.JoinReason == "" {
+		user.JoinReason = utils.EscapeHTML(update.Text)
+		userString := utils.BuildUserString(&user.From)
+
+		keyboard := utils.NewApprovalKeyboard(user.From.ID)
+		utils.EditMessageWithKeyboard(bot.API, *bot.Config.AdminChatId, user.JoinRequestMessageID,
+			fmt.Sprintf(AdminJoinRequestMsg,
+				userString, user.From.ID, user.JoinReason), &keyboard)
+
+		utils.SendMessage(bot.API, update.From.ID, 0, "Thank you! Your request has been sent to the admins for review.")
+	} else {
+		utils.SendMessage(bot.API, update.From.ID, 0, "Your request is already pending approval.")
+	}
+}
+
+// HandleJoinRequest initiates join approval flow by sending entry message and admin notification.
+func (bot *Bot) HandleJoinRequest(request *api.ChatJoinRequest) {
+	// if chat is not in config, ignore
+	if *bot.Config.TargetChatId != request.Chat.ID {
+		m := api.NewMessage(*bot.Config.AdminChatId,
+			fmt.Sprintf("Received join request for chat %s (<code>%d</code>), but it's not in config, ignoring",
+				request.Chat.Title, request.Chat.ID))
+		leaveBtn := api.NewInlineKeyboardButtonData("Leave Chat", fmt.Sprintf("leave_%d", request.Chat.ID))
+		m.ReplyMarkup = api.NewInlineKeyboardMarkup([]api.InlineKeyboardButton{leaveBtn})
+		m.ParseMode = api.ModeHTML
+		bot.API.Send(m)
+		return
+	}
+
+	utils.SendMessage(bot.API, request.From.ID, 0, bot.Config.EntryMessage)
+	userString := utils.BuildUserString(&request.From)
+
+	m := api.NewMessage(*bot.Config.AdminChatId,
+		fmt.Sprintf(AdminJoinRequestMsg, userString, request.From.ID, "(awaiting user response)"))
+	m.ReplyMarkup = utils.NewApprovalKeyboard(request.From.ID)
+	m.ParseMode = api.ModeHTML
+	if topic := *bot.Config.AdminChatTopicId; topic != 0 {
+		m.MessageThreadID = topic
+	}
+	r, err := bot.API.Send(m)
+	if err != nil {
+		log.Printf("Failed to send join request to admin chat: %v", err)
+		return
+	}
+
+	bot.SetPendingUser(request.From.ID, &ExtendedChatJoinRequest{
+		ChatJoinRequest:      request,
+		JoinReason:           "",
+		JoinRequestMessageID: r.MessageID,
+	})
+}
+
+// SendFailureMessage edits the admin request message to show a failure status.
+func (bot *Bot) SendFailureMessage(user *ExtendedChatJoinRequest, query *api.CallbackQuery, userString string) {
+	utils.EditMessage(bot.API, *bot.Config.AdminChatId, user.JoinRequestMessageID,
+		fmt.Sprintf(AdminFailedMsg, userString, user.From.ID, utils.EscapeHTML(user.JoinReason), "User not found in requests."))
+
+	callback := api.NewCallback(query.ID, "Join request failed.")
+	bot.API.Request(callback)
+}