From eadef987be11dc22a89c2aad990814bd89add770 Mon Sep 17 00:00:00 2001
From: Bohdan Horbeshko <bodqhrohro@gmail.com>
Date: Fri, 21 Jul 2023 07:45:44 -0400
Subject: [PATCH] Revert "Avoid webpage preview updates being sent as message
 edits"

This reverts commit 563cb2d624598efdd3819daef00c64079d8a20e1.
---
 telegram/client.go   |  3 ---
 telegram/handlers.go | 20 --------------------
 telegram/utils.go    | 33 ---------------------------------
 3 files changed, 56 deletions(-)

diff --git a/telegram/client.go b/telegram/client.go
index 5cc15a4..61d46aa 100644
--- a/telegram/client.go
+++ b/telegram/client.go
@@ -53,7 +53,6 @@ type Client struct {
 	Session   *persistence.Session
 	resources map[string]bool
 	outbox    map[string]string
-	editQueue map[ChatMessageId]bool
 	content   *config.TelegramContentConfig
 	cache     *cache.Cache
 	online    bool
@@ -70,7 +69,6 @@ type clientLocks struct {
 	chatMessageLocks   map[int64]*sync.Mutex
 	resourcesLock      sync.Mutex
 	outboxLock         sync.Mutex
-	editQueueLock      sync.Mutex
 }
 
 // NewClient instantiates a Telegram App
@@ -127,7 +125,6 @@ func NewClient(conf config.TelegramConfig, jid string, component *xmpp.Component
 		Session:         session,
 		resources:       make(map[string]bool),
 		outbox:          make(map[string]string),
-		editQueue:       make(map[ChatMessageId]bool),
 		content:         &conf.Content,
 		cache:           cache.NewCache(),
 		options:         options,
diff --git a/telegram/handlers.go b/telegram/handlers.go
index 93ac284..abc1f5d 100644
--- a/telegram/handlers.go
+++ b/telegram/handlers.go
@@ -104,13 +104,6 @@ func (c *Client) updateHandler() {
 				}
 				c.updateNewMessage(typedUpdate)
 				log.Debugf("%#v", typedUpdate.Message)
-			case client.TypeUpdateMessageEdited:
-				typedUpdate, ok := update.(*client.UpdateMessageEdited)
-				if !ok {
-					uhOh()
-				}
-				c.updateMessageEdited(typedUpdate)
-				log.Debugf("%#v", typedUpdate)
 			case client.TypeUpdateMessageContent:
 				typedUpdate, ok := update.(*client.UpdateMessageContent)
 				if !ok {
@@ -236,11 +229,6 @@ func (c *Client) updateNewMessage(update *client.UpdateNewMessage) {
 	}()
 }
 
-// message content edited
-func (c *Client) updateMessageEdited(update *client.UpdateMessageEdited) {
-	c.addToEditQueue(update.ChatId, update.MessageId)
-}
-
 // message content updated
 func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
 	markupFunction := formatter.EntityToXEP0393
@@ -256,14 +244,6 @@ func (c *Client) updateMessageContent(update *client.UpdateMessageContent) {
 	}
 	log.Infof("ignoredResource: %v", ignoredResource)
 
-	if !c.deleteFromEditQueue(update.ChatId, update.MessageId) {
-		log.WithFields(log.Fields{
-			"chatId":    update.ChatId,
-			"messageId": update.MessageId,
-		}).Infof("Content update with no preceding message edit, ignoring")
-		return
-	}
-
 	jids := c.getCarbonFullJids(true, ignoredResource)
 	if len(jids) == 0 {
 		log.Info("The only resource is ignored, aborting")
diff --git a/telegram/utils.go b/telegram/utils.go
index da66189..9486349 100644
--- a/telegram/utils.go
+++ b/telegram/utils.go
@@ -24,7 +24,6 @@ import (
 	"github.com/zelenin/go-tdlib/client"
 )
 
-// VCardInfo contains intermediate data to produce a vCard
 type VCardInfo struct {
 	Fn       string
 	Photo    *client.File
@@ -35,12 +34,6 @@ type VCardInfo struct {
 	Info     string
 }
 
-// ChatMessageId uniquely identifies a Telegram message
-type ChatMessageId struct {
-	ChatId int64
-	MessageId int64
-}
-
 var errOffline = errors.New("TDlib instance is offline")
 
 var spaceRegex = regexp.MustCompile(`\s+`)
@@ -1391,29 +1384,3 @@ func (c *Client) getCarbonFullJids(isOutgoing bool, ignoredResource string) []st
 	}
 	return jids
 }
-
-func (c *Client) addToEditQueue(chatId, messageId int64) {
-	c.locks.editQueueLock.Lock()
-	defer c.locks.editQueueLock.Unlock()
-
-	c.editQueue[ChatMessageId{
-		ChatId:    chatId,
-		MessageId: messageId,
-	}] = true
-}
-
-func (c *Client) deleteFromEditQueue(chatId, messageId int64) bool {
-	c.locks.editQueueLock.Lock()
-	defer c.locks.editQueueLock.Unlock()
-
-	key := ChatMessageId{
-		ChatId:    chatId,
-		MessageId: messageId,
-	}
-	_, ok := c.editQueue[key]
-	if ok {
-		delete(c.editQueue, key)
-	}
-
-	return ok
-}