From 940dfad233b503f800bd4888dfac8d1430289e9f Mon Sep 17 00:00:00 2001
From: rodh-odoo <rodh@odoo.com>
Date: Tue, 19 Aug 2025 14:54:21 +0530
Subject: [PATCH] [IMP] send_invoice_email: add cron job to send invoices
 automatically via email

Purpose of this commit:

- Added a scheduled action (cron) to automatically send invoices by email.
- Allows invoices to be emailed without manual user action.
- Uses config parameter `send_invoice_by_email` to enable/disable the email sending feature.
---
 send_invoice_email/__init__.py                |  1 +
 send_invoice_email/__manifest__.py            | 19 +++++++++++
 send_invoice_email/models/__init__.py         |  2 ++
 send_invoice_email/models/account_move.py     | 33 +++++++++++++++++++
 .../models/res_config_settings.py             |  7 ++++
 send_invoice_email/views/ir_cron_data.xml     | 12 +++++++
 .../views/res_config_settings_view.xml        | 19 +++++++++++
 7 files changed, 93 insertions(+)
 create mode 100644 send_invoice_email/__init__.py
 create mode 100644 send_invoice_email/__manifest__.py
 create mode 100644 send_invoice_email/models/__init__.py
 create mode 100644 send_invoice_email/models/account_move.py
 create mode 100644 send_invoice_email/models/res_config_settings.py
 create mode 100644 send_invoice_email/views/ir_cron_data.xml
 create mode 100644 send_invoice_email/views/res_config_settings_view.xml

diff --git a/send_invoice_email/__init__.py b/send_invoice_email/__init__.py
new file mode 100644
index 0000000000..0650744f6b
--- /dev/null
+++ b/send_invoice_email/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/send_invoice_email/__manifest__.py b/send_invoice_email/__manifest__.py
new file mode 100644
index 0000000000..810400e638
--- /dev/null
+++ b/send_invoice_email/__manifest__.py
@@ -0,0 +1,19 @@
+{
+    'name': 'Send Invoice Email',
+    'version': '1.0',
+    'summary': 'Automatically send invoices by email after configurable days',
+    'author': 'rodh',
+    'category': 'Accounting',
+     "license": "LGPL-3",
+    'depends': [
+        'account',
+        'base',
+    ],
+    'data': [
+        'views/res_config_settings_view.xml',
+        'views/ir_cron_data.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+}
diff --git a/send_invoice_email/models/__init__.py b/send_invoice_email/models/__init__.py
new file mode 100644
index 0000000000..123c3f2514
--- /dev/null
+++ b/send_invoice_email/models/__init__.py
@@ -0,0 +1,2 @@
+from . import res_config_settings
+from . import account_move
diff --git a/send_invoice_email/models/account_move.py b/send_invoice_email/models/account_move.py
new file mode 100644
index 0000000000..2cdfac4b4b
--- /dev/null
+++ b/send_invoice_email/models/account_move.py
@@ -0,0 +1,33 @@
+from odoo import fields, models
+from datetime import timedelta
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    def _send_email_invoice(self):
+
+        hour = self.env['ir.config_parameter'].sudo().get_param('send_invoice_email.send_invoice_by_email')
+
+        if hour is None:
+            return
+
+        try:
+            hour = int(hour)
+        except ValueError:
+            return
+
+        target_date = fields.Datetime.now() - timedelta(hours=hour)
+
+        invoices = self.search([
+    ('invoice_date', '<=', target_date.date()),
+    ('payment_state', '!=', 'paid'),
+    ('state', '=', 'posted')
+])
+
+        template = self.env.ref('account.email_template_edi_invoice', raise_if_not_found=False)
+        if not template:
+            return
+
+        for invoice in invoices:
+            template.send_mail(invoice.id, force_send=True)
diff --git a/send_invoice_email/models/res_config_settings.py b/send_invoice_email/models/res_config_settings.py
new file mode 100644
index 0000000000..7c4c1293b7
--- /dev/null
+++ b/send_invoice_email/models/res_config_settings.py
@@ -0,0 +1,7 @@
+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = 'res.config.settings'
+
+    send_invoice_by_email = fields.Integer(string='Send invoice by email after (days)', config_parameter="send_invoice_email.send_invoice_by_email")
diff --git a/send_invoice_email/views/ir_cron_data.xml b/send_invoice_email/views/ir_cron_data.xml
new file mode 100644
index 0000000000..b8741e130b
--- /dev/null
+++ b/send_invoice_email/views/ir_cron_data.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="ir_cron_send_email_invoice" model="ir.cron">
+        <field name="name">Send Invoice By Email</field>
+        <field name="model_id" ref="account.model_account_move"/>
+        <field name="state">code</field>
+        <field name="code">model._send_email_invoice()</field>
+        <field name="interval_number">1</field>
+        <field name="interval_type">hours</field>
+        <field name="active">True</field>
+    </record>
+</odoo>
diff --git a/send_invoice_email/views/res_config_settings_view.xml b/send_invoice_email/views/res_config_settings_view.xml
new file mode 100644
index 0000000000..05f0cfafcf
--- /dev/null
+++ b/send_invoice_email/views/res_config_settings_view.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_res_config_settings_view" model="ir.ui.view">
+        <field name="name">res.config.settings.inherit.view.form</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="account.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//block//setting[@id='total_amount_words']" position="after">
+                <setting id="automatic_send_invoice">
+                    <label for="send_invoice_by_email" />
+                    <div>
+                        <field name="send_invoice_by_email" class="oe_inline" />
+                        <span>hours</span>
+                    </div>
+                </setting>
+            </xpath>
+        </field>
+    </record>
+</odoo>