[IMP] estate: added a bridge module for WhatsApp to send message.

Features added:
1) User can create their WhatsApp templates.
2) A WhatsApp message will be sent to the buyer when the property
is sold.

Author: chkh-odoo

estate_whatsapp/__init__.py

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+from . import models

estate_whatsapp/__manifest__.py

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+{
+    "name": "ESTATE WHATSAPP",
+    "version": "1.0",
+    "category": "Real Estate/Brokerage",
+    "website": "https://www.odoo.com",
+    "depends": ["base", "whatsapp", "estate"],
+    "data": ["views/estate_whatsapp_config.xml", "views/estate_menus.xml"],
+    "installable": True,
+    "application": True,
+    "license": "AGPL-3",
+    "author": "Odoo",
+}

estate_whatsapp/models/__init__.py

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+from . import estate_property
+from . import res_config_settings
+from . import res_company

estate_whatsapp/models/estate_property.py

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+from odoo import models, fields
+
+
+class EstateProperty(models.Model):
+    _inherit = "estate.property"
+
+    def action_change_state(self):
+        param_value = self.env.context.get("param_name", "default_value")
+
+        if param_value == "sold":
+
+            self.state = "sold"
+            whatsapp_composer = (
+                self.env["whatsapp.composer"]
+                .with_context({"active_id": self.id})
+                .create(
+                    {
+                        "wa_template_id": self.env.company.wa_sale_template_id.id,
+                        "res_model": "estate.property",
+                    }
+                )
+            )
+            whatsapp_composer.sudo()._send_whatsapp_template(force_send_by_cron=True)
+
+        else:
+            return super().action_change_state()

estate_whatsapp/models/res_company.py

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+   
+from odoo import models, fields
+
+
+class ResCompany(models.Model):
+    _inherit = "res.company"
+   
+    wa_sale_template_id = fields.Many2one('whatsapp.template',string='WhatsApp Template', domain=[('model', '=', 'estate.property'), ('status', '=', 'approved')])

estate_whatsapp/models/res_config_settings.py

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+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    # def _default_company(self):
+    #     return self.env['res.company'].company_id, limit=1)
+
+    company_id = fields.Many2one(
+        'res.company',
+        string="company",
+        ondelete='cascade')
+    wa_sale_template_id = fields.Many2one(related='company_id.wa_sale_template_id', readonly=False, store=True)

estate_whatsapp/views/estate_menus.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <data>
+        <menuitem id="estate_property_whatsapp" name="Configuration" parent="estate.estate_property_root">
+            <menuitem id="estate_property_configuration_menu_action" action="estate_whatsapp_model_action"/>
+        </menuitem>
+    </data>
+</odoo>

estate_whatsapp/views/estate_whatsapp_config.xml

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+<?xml version="1.0"?>
+<odoo>
+    <record id="estate_whatsapp_model_action" model="ir.actions.act_window">
+        <field name="name">Settings</field>
+        <field name="path">whatsapp_settings</field>
+        <field name="res_model">res.config.settings</field>
+        <field name="view_mode">form</field>
+        <field name="target">inline</field>
+        <field name="context">{'module' : 'estate_whatsapp', 'bin_size': False}</field>
+    </record>
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.estate</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="base.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//form" position="inside">
+                <app data-string="Estate" string="Estate" name="estate_whatsapp">
+                    <div id="Whatsapp template">
+                        <block title="Templates" name="template_setting_container">
+                            <div class="mt16">
+                                <label for="wa_sale_template_id" class="o_light_label mr8"/>
+                                <field name="wa_sale_template_id" class="oe_inline"/>
+                            </div>
+                        </block>
+                    </div>
+                </app>
+            </xpath>
+        </field>
+    </record>
+</odoo>