[FIX] mail, sms, snailmail: prevent message_fetch for hidden threads

Automatically load messages from a thread cache only if the thread cache is used
in at least one thread view.

Ensure thread viewer don't keep thread view records alive when they are not
displayed.

This change is particularly important for performance, to avoid spamming RPC at
init if many threads are opened in chat windows.

task-2310623

closes odoo/odoo#57061

X-original-commit: dd6981c7812134e0588f80a157eaba45512cd68e
Related: odoo/enterprise#12936
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/addons/mail/static/src/models/messaging_notification_handler/messaging_notification_handler.js b/addons/mail/static/src/models/messaging_notification_handler/messaging_notification_handler.js
index 29923af1e39..0ce0279e87d 100644
--- a/addons/mail/static/src/models/messaging_notification_handler/messaging_notification_handler.js
+++ b/addons/mail/static/src/models/messaging_notification_handler/messaging_notification_handler.js
@@ -155,6 +155,10 @@ function factory(dependencies) {
                 // knowledge of the channel
                 return;
             }
+            if (channel.channel_type === 'channel') {
+                // disabled on `channel` channels for performance reasons
+                return;
+            }
             channel.update({
                 partnerSeenInfos: [['insert',
                     {
@@ -259,7 +263,11 @@ function factory(dependencies) {
                         message,
                     });
                 }
-                channel.markAsFetched();
+                if (channel.model === 'mail.channel' && channel.channel_type !== 'channel') {
+                    // disabled on non-channel threads and
+                    // on `channel` channels for performance reasons
+                    channel.markAsFetched();
+                }
                 // (re)open chat on receiving new message
                 if (channel.channel_type !== 'channel') {
                     this.env.messaging.chatWindowManager.openThread(channel);
@@ -303,6 +311,10 @@ function factory(dependencies) {
                 // knowledge of the channel
                 return;
             }
+            if (channel.channel_type === 'channel') {
+                // disabled on `channel` channels for performance reasons
+                return;
+            }
             const lastMessage = this.env.models['mail.message'].insert({id: last_message_id});
             const updateData = {
                 partnerSeenInfos: [['insert',