[ADD] loyalty_delivery: add free shipping as reward

Complementary module for `loyalty` that adds a new reward type: Free
Shipping.

TaskId-2675382

addons/loyalty_delivery/__init__.py

@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

addons/loyalty_delivery/__manifest__.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+{
+    'name': 'Coupons & Loyalty - Delivery',
+    'summary': "Add a free shipping option to your rewards",
+    'category': 'Sales',
+    'version': '1.0',
+    'depends': ['loyalty', 'delivery'],
+    'data': [
+        'data/loyalty_delivery_data.xml',
+        'views/loyalty_reward_views.xml',
+    ],
+    'assets': {
+    },
+    'installable': True,
+    'auto_install': True,
+    'license': 'LGPL-3',
+}

addons/loyalty_delivery/data/loyalty_delivery_data.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="loyalty.gift_card_product_50" model="product.product">
+        <field name="tracking">none</field>
+    </record>
+    <record id="loyalty.ewallet_product_50" model="product.product">
+        <field name="tracking">none</field>
+    </record>
+</odoo>

addons/loyalty_delivery/models/__init__.py

@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import loyalty_program
+from . import loyalty_reward

addons/loyalty_delivery/models/loyalty_program.py

@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import _, api, models
+
+class LoyaltyProgram(models.Model):
+    _inherit = 'loyalty.program'
+
+    @api.model
+    def _program_type_default_values(self):
+        res = super()._program_type_default_values()
+        # Add a loyalty reward for free shipping
+        res['loyalty']['reward_ids'].append((0, 0, {
+            'reward_type': 'shipping',
+            'required_points': 100,
+        }))
+        return res
+
+    @api.model
+    def get_program_templates(self):
+        # Override 'promotion' template to say free shipping
+        res = super().get_program_templates()
+        res['promotion']['description'] = _("Automatic promotion: free shipping on orders higher than $50")
+        return res
+
+    @api.model
+    def _get_template_values(self):
+        res = super()._get_template_values()
+        res['promotion']['reward_ids'] = [(5, 0, 0), (0, 0, {
+            'reward_type': 'shipping',
+        })]
+        return res

addons/loyalty_delivery/models/loyalty_reward.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import _, fields, models
+
+class LoyaltyReward(models.Model):
+    _inherit = 'loyalty.reward'
+
+    reward_type = fields.Selection(
+        selection_add=[('shipping', 'Free Shipping')],
+        ondelete={'shipping': 'set default'})
+
+    def _compute_description(self):
+        shipping_rewards = self.filtered(lambda r: r.reward_type == 'shipping')
+        super(LoyaltyReward, self - shipping_rewards)._compute_description()
+        shipping_rewards.description = _('Free shipping')
+        for reward in shipping_rewards:
+            if reward.discount_max_amount:
+                format_string = '%(amount)g %(symbol)s'
+                if reward.currency_id.position == 'before':
+                    format_string = '%(symbol)s %(amount)g'
+                formatted_amount = format_string % {'amount': reward.discount_max_amount, 'symbol': reward.currency_id.symbol}
+                reward.description += _(' (Max %s)', formatted_amount)

addons/loyalty_delivery/views/loyalty_reward_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="loyalty_reward_view_form_inherit_loyalty_delivery" model="ir.ui.view">
+        <field name="name">loyalty.reward.view.form.inherit.loyalty.delivery</field>
+        <field name="model">loyalty.reward</field>
+        <field name="inherit_id" ref="loyalty.loyalty_reward_view_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@id='product_group']" position="after">
+                <group id="shipping" attrs="{'invisible': [('reward_type', '!=', 'shipping')]}">
+                    <field name="discount_max_amount"/>
+                </group>
+            </xpath>
+        </field>
+    </record>
+</odoo>