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To address the issues you're facing with notifications and activity logging in your custom Odoo 16 Lead Transfer Module, let's break down the solutions step by step. We'll cover both notifications and activity logging improvements.

1. Notification Improvements

Desktop Notifications with Sound

To implement desktop notifications with sound, you need to use Odoo's Bus (Browser Unidirectional Server) system and JavaScript for handling notifications on the client side.

Step 1: Send Notification via Bus

Update your action_transfer method to send a notification via the Bus system:

python   Copy

def action_transfer(self):
    self.ensure_one()
    lead = self.lead_id
    try:
        # Update lead
        lead.write({
            'user_id': self.user_id.id,  # Assign lead to the new user
            'date_transferred': fields.Datetime.now(),  # Log transfer time
        })

        # Post note in chatter
        lead.message_post(
            body=_('Lead transferred to %s') % self.user_id.name,
            message_type='notification',
            subtype_xmlid='mail.mt_note'
        )

        # Send Bus notification
        notification = {
            'type': 'lead_transfer',
            'lead_name': lead.name,
            'priority': lead.priority,
            'sender': self.env.user.name,
            'message': _('Lead %s has been transferred to you.') % lead.name,
        }
        self.env['bus.bus']._sendone(
            self.user_id.partner_id,
            'lead.transfer.notification',
            notification
        )

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'message': _('Lead transferred successfully'),
                'type': 'success',
            }
        }

    except Exception as e:
        lead.write({'transfer_lead_status': 'draft'})
        raise UserError(_('Failed to transfer lead: %s') % str(e))

Step 2: Handle Notification in JavaScript

Add JavaScript to handle the Bus notification and display it as a desktop notification with sound.

1. Create a new JavaScript file (e.g., lead_transfer_notification.js) in your module's static/src/js/ directory.
2. Add the following code:

javascript  Copy

odoo.define('lead_transfer.notification', function (require) {
    "use strict";

    var Bus = require('bus.bus');
    var Notification = require('web.Notification');

    // Listen for Bus notifications
    Bus.on('lead.transfer.notification', null, function (notification) {
        // Play sound
        var audio = new Audio('/lead_transfer/static/src/sounds/notification.mp3');
        audio.play();

        // Display desktop notification
        Notification.create({
            title: 'New Lead Transferred',
            message: notification.message,
            type: 'info',
            sticky: true,  // Make notification persistent
            buttons: [
                {
                    text: 'View Lead',
                    click: function () {
                        window.open(`/web#id=${notification.lead_id}&model=crm.lead&view_type=form`, '_blank');
                    }
                }
            ]
        });
    });
});

1. Include the JavaScript file in your module's assets_backend template:

xml

Copy

<template id="assets_backend" inherit_id="web.assets_backend">
    <xpath expr="." position="inside">
        <script type="text/javascript" src="/lead_transfer/static/src/js/lead_transfer_notification.js"></script>
    </xpath>
</template>

1. Add a sound file (e.g., notification.mp3) to your module's static/src/sounds/ directory.

2. Activity Logging Improvements

Precise Timestamps and Priority System

To log precise timestamps and implement a priority system, update your crm.lead model and action_transfer method.

Step 1: Add Fields to crm.lead

Add the following fields to your crm.lead model:

python  Copy

class CrmLead(models.Model):
    _inherit = 'crm.lead'

    date_transferred = fields.Datetime(string='Transfer Date', readonly=True)
    transfer_priority = fields.Selection([
        ('0', 'Low'),
        ('1', 'Medium'),
        ('2', 'High'),
    ], string='Transfer Priority', default='0')

Step 2: Update action_transfer Method

Update the action_transfer method to log the transfer timestamp and priority:

python  Copy

def action_transfer(self):
    self.ensure_one()
    lead = self.lead_id
    try:
        # Update lead
        lead.write({
            'user_id': self.user_id.id,
            'date_transferred': fields.Datetime.now(),
            'transfer_priority': self.transfer_priority,  # Add priority
        })

        # Post note in chatter
        lead.message_post(
            body=_('Lead transferred to %s with priority %s') % (self.user_id.name, dict(lead._fields['transfer_priority'].selection).get(lead.transfer_priority)),
            message_type='notification',
            subtype_xmlid='mail.mt_note'
        )

        # Send Bus notification
        notification = {
            'type': 'lead_transfer',
            'lead_name': lead.name,
            'priority': lead.transfer_priority,
            'sender': self.env.user.name,
            'message': _('Lead %s has been transferred to you with priority %s.') % (lead.name, dict(lead._fields['transfer_priority'].selection).get(lead.transfer_priority)),
        }
        self.env['bus.bus']._sendone(
            self.user_id.partner_id,
            'lead.transfer.notification',
            notification
        )

        return {
            'type': 'ir.actions.client',
            'tag': 'display_notification',
            'params': {
                'message': _('Lead transferred successfully'),
                'type': 'success',
            }
        }

    except Exception as e:
        lead.write({'transfer_lead_status': 'draft'})
        raise UserError(_('Failed to transfer lead: %s') % str(e))

3. Persistent Notifications

To make notifications persistent until acknowledged, use the sticky option in the Notification.create method (as shown in the JavaScript code above).

Summary

• Notifications: Use Odoo's Bus system and JavaScript to send desktop notifications with sound.
• Activity Logging: Add fields for timestamps and priority, and update the action_transfer method to log these details.
• Persistent Notifications: Use the sticky option in JavaScript notifications.