[FIX] im_livechat, mail, website_livechat: invite button in livechats

Task-2334724

closes odoo/odoo#57505

X-original-commit: 5316c91c27e48bfaa3ebf3fb97e35220fabc986e
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

2 files changed, 35 insertions, 0 deletions

diff --git a/addons/im_livechat/static/src/models/partner/partner.js b/addons/im_livechat/static/src/models/partner/partner.js
new file mode 100644
index 00000000000..7392c8d6229
--- /dev/null
+++ b/addons/im_livechat/static/src/models/partner/partner.js
@@ -0,0 +1,23 @@
+odoo.define('im_livechat/static/src/models/partner/partner.js', function (require) {
+'use strict';
+
+const {
+    registerClassPatchModel,
+} = require('mail/static/src/model/model_core.js');
+
+let nextPublicId = -1;
+
+registerClassPatchModel('mail.partner', 'im_livechat/static/src/models/partner/partner.js', {
+
+    //----------------------------------------------------------------------
+    // Public
+    //----------------------------------------------------------------------
+
+    getNextPublicId() {
+        const id = nextPublicId;
+        nextPublicId -= 1;
+        return id;
+    },
+});
+
+});
diff --git a/addons/im_livechat/static/src/models/thread/thread.js b/addons/im_livechat/static/src/models/thread/thread.js
index 190a2088066..1ec06246ec7 100644
--- a/addons/im_livechat/static/src/models/thread/thread.js
+++ b/addons/im_livechat/static/src/models/thread/thread.js
@@ -53,9 +53,11 @@ registerClassPatchModel('mail.thread', 'im_livechat/static/src/models/thread/thr
                     )
                 );
                 data2.members.push(['link', partner]);
+                data2.correspondent = [['link', partner]];
             } else {
                 const partnerData = this.env.models['mail.partner'].convertData(data.livechat_visitor);
                 data2.members.push(['insert', partnerData]);
+                data2.correspondent = [['insert', partnerData]];
             }
         }
         return data2;
@@ -71,6 +73,16 @@ registerInstancePatchModel('mail.thread', 'im_livechat/static/src/models/thread/
     /**
      * @override
      */
+    _computeCorrespondent() {
+        if (this.channel_type === 'livechat') {
+            // livechat correspondent never change: always the public member.
+            return [];
+        }
+        return this._super();
+    },
+    /**
+     * @override
+     */
     _computeDisplayName() {
         if (this.channel_type === 'livechat' && this.correspondent) {
             if (this.correspondent.country) {