115 lines
1.9 KiB
Go
115 lines
1.9 KiB
Go
package toc
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import (
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"log"
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"sync"
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"time"
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"tgchanbot/internal/storage"
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tele "gopkg.in/telebot.v3"
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)
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type Manager struct {
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storage *storage.Storage
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bot *tele.Bot
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chanID int64
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debounce time.Duration
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mu sync.Mutex
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pending bool
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timer *time.Timer
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stopCh chan struct{}
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}
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func NewManager(store *storage.Storage, bot *tele.Bot, chanID int64, debounce time.Duration) *Manager {
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return &Manager{
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storage: store,
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bot: bot,
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chanID: chanID,
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debounce: debounce,
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stopCh: make(chan struct{}),
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}
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}
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func (m *Manager) TriggerUpdate() {
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m.mu.Lock()
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defer m.mu.Unlock()
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m.pending = true
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if m.timer != nil {
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m.timer.Stop()
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}
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m.timer = time.AfterFunc(m.debounce, func() {
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m.doUpdate()
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})
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}
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func (m *Manager) doUpdate() {
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m.mu.Lock()
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m.pending = false
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m.mu.Unlock()
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content, err := m.Render()
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if err != nil {
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log.Printf("TOC render error: %v", err)
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return
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}
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if err := m.updateMessage(content); err != nil {
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log.Printf("TOC update error: %v", err)
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}
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}
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func (m *Manager) updateMessage(content string) error {
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chat := &tele.Chat{ID: m.chanID}
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msgID, err := m.storage.GetTocMsgID()
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if err != nil {
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return err
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}
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if msgID == 0 {
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msg, err := m.bot.Send(chat, content, tele.ModeMarkdown, tele.NoPreview)
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if err != nil {
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return err
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}
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return m.storage.SetTocMsgID(msg.ID)
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}
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existingMsg := &tele.Message{
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ID: msgID,
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Chat: chat,
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}
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_, err = m.bot.Edit(existingMsg, content, tele.ModeMarkdown, tele.NoPreview)
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if err != nil {
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if err == tele.ErrMessageNotModified {
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return nil
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}
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if err.Error() == "telegram: message to edit not found (400)" {
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msg, err := m.bot.Send(chat, content, tele.ModeMarkdown, tele.NoPreview)
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if err != nil {
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return err
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}
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return m.storage.SetTocMsgID(msg.ID)
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}
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return err
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}
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return nil
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}
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func (m *Manager) Stop() {
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m.mu.Lock()
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defer m.mu.Unlock()
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if m.timer != nil {
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m.timer.Stop()
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}
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close(m.stopCh)
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}
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