[ADD] product_warranty: add product warranty module

Add product warranty module which adds warranty product by clicking on 'Add
Warranty' button in quotation on addition of related product in sales order line
Also by deleting the product warranty will also get removed. Add warranty as
sale order line so we can see it as any other product in sales order in print
report.

Firstly we need to configure warranty from warranty config.(Which is located
in sales-> menu -> Configuration -> (Under product section) -> Warranty Config)

By clicking on is warranty product on product template's sales section we can
mark that product as warranty product.

task - 4504888

product_warranty/__init__.py

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+from . import models
+from . import wizard

product_warranty/__manifest__.py

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+{
+    "name": "Product Warranty",
+    "version": "1.0",
+    "category": "Sales/Warranty",
+    "summary": "Add warranty information to products and display it on sale order lines.",
+    "description": """
+This module provides functionality to manage product warranties.
+Users can define warranties for products and see warranty details in sale order lines.
+""",
+    "license": "AGPL-3",
+    "depends": ["base", "sale_management"],
+    "data": [
+        "security/ir.model.access.csv",
+        "views/product_template_views.xml",
+        "views/product_warranty_config_menu.xml",
+        "views/product_warranty_config_views.xml",
+        "views/sale_order_views.xml",
+        "wizard/product_warranty_wizard_view.xml",
+    ],
+    "auto_install": True,
+}

product_warranty/models/__init__.py

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+from . import product_template
+from . import sale_order
+from . import warranty_config

product_warranty/models/product_template.py

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+from odoo import fields, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    is_warranty_product = fields.Boolean("Is Warranty Product")

product_warranty/models/sale_order.py

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+from odoo import api, Command, models
+
+
+class SaleOrder(models.Model):
+    _inherit = "sale.order"
+
+    def action_open_warranty_wizard(self):
+        return {
+            "name": "Add Warranty",
+            "type": "ir.actions.act_window",
+            "res_model": "product.warranty.wizard",
+            "view_mode": "form",
+            "target": "new",
+        }
+
+    @api.onchange("order_line")
+    def _onchange_order_line(self):
+        super()._onchange_order_line()
+        deleted_product_template_ids = []
+        for line in self.order_line:
+            # Find each products that is not in Sale Order currently
+            if (
+                line.linked_line_id.id
+                and line.linked_line_id.id not in self.order_line.ids
+            ):
+                deleted_product_template_ids.append(line.linked_line_id.id)
+
+        linked_line_ids_to_delete = self.order_line.search(
+            [("linked_line_id", "in", deleted_product_template_ids)]
+        )
+        self.order_line = [
+            Command.unlink(linked_line_id)
+            for linked_line_id in linked_line_ids_to_delete.ids
+        ]

product_warranty/models/warranty_config.py

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+from odoo import fields, models
+
+
+class ProductWarrantyConfig(models.Model):
+    _name = "product.warranty.config"
+    _description = "Product Warranty Configuration"
+
+    name = fields.Char(string="Name", required=True)
+    product_template_id = fields.Many2one(
+        "product.template", string="Product", required=True
+    )
+    percentage = fields.Float(string="Percentage", required=True)
+    years = fields.Integer(string="Years", required=True)
+
+    _sql_constraints = [
+        ("name_uniq", "unique (name)", "Two Waranties can not be of same name"),
+    ]

product_warranty/security/ir.model.access.csv

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+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+product_warranty.access_product_warranty_config,access_product_warranty_config,product_warranty.model_product_warranty_config,base.group_user,1,1,1,1
+product_warranty.access_prodcut_warranty_wizard,access_prodcut_warranty_wizard,product_warranty.model_product_warranty_wizard,base.group_user,1,1,1,1
+product_warranty.access_product_warranty_wizard_line,access_product_warranty_wizard_line,product_warranty.model_product_warranty_wizard_line,base.group_user,1,1,1,1

product_warranty/views/product_template_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="product_template_form_view_inherit_product_warranty" model="ir.ui.view">
+        <field name="name">product.template.view.form.inherit</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="product.product_template_form_view"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='upsell']" position="after">
+                <group string="Warranty">
+                    <field name="is_warranty_product" />
+                </group>
+            </xpath>
+
+        </field>
+    </record>
+
+</odoo>

product_warranty/views/product_warranty_config_menu.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <menuitem id="product_warranty_config_menu" name="Warranty Config" action="product_warranty.product_warranty_config_action" parent="sale.prod_config_main" sequence="10"/>
+</odoo>

product_warranty/views/product_warranty_config_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="product_warranty_config_action" model="ir.actions.act_window">
+        <field name="name">Warranty Config</field>
+        <field name="res_model">product.warranty.config</field>
+        <field name="view_mode">list</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Define new warranty
+            </p>
+        </field>
+    </record>
+
+    <record id="product_warranty_config_view_list" model="ir.ui.view">
+        <field name="name">product.warranty.config.view.tree</field>
+        <field name="model">product.warranty.config</field>
+        <field name="arch" type="xml">
+            <list string="Warranty Config" sample="1" editable="bottom">
+                <field name="name" />
+                <field name="product_template_id" />
+                <field name="percentage" />
+                <field name="years" />
+            </list>
+        </field>
+    </record>
+
+</odoo>

product_warranty/views/sale_order_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="view_order_form_inherit_product_warranty" model="ir.ui.view">
+        <field name="name">sale.order.view.form.inherit</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//div[@name='so_button_below_order_lines']" position="inside">
+                <button string="Add Warranty" name="action_open_warranty_wizard" type="object" class="btn btn-secondary"/>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>

product_warranty/wizard/__init__.py

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+from . import product_warranty_wizard
+from . import product_warranty_wizard_line

product_warranty/wizard/product_warranty_wizard.py

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+from odoo import api, Command, fields, models
+
+
+class WarrantyWizard(models.TransientModel):
+    _name = "product.warranty.wizard"
+    _description = "Warranty Selection Wizard"
+
+    sale_order_id = fields.Many2one("sale.order", string="Sale Order")
+    line_ids = fields.One2many(
+        "product.warranty.wizard.line", "wizard_id", string="Warranty Lines"
+    )
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        sale_order = self.env["sale.order"].browse(self.env.context.get("active_id"))
+        warranty_lines = []
+
+        for line in sale_order.order_line.filtered(
+            lambda line: line.product_template_id and line.product_template_id.is_warranty_product
+        ):
+            warranty = self.env["product.warranty.wizard.line"].create(
+                {
+                    "sale_order_line_id": line.id,
+                    "warranty_config_id": False,
+                }
+            )
+            warranty_lines.append(Command.link(warranty.id))
+
+        res["sale_order_id"] = sale_order.id
+        res["line_ids"] = warranty_lines
+        return res
+
+    def apply_warranty(self):
+        for line in self.line_ids:
+            product = self.env["product.template"].browse(line.product_template_id.id)
+            if line.warranty_config_id:
+                self.env["sale.order.line"].create(
+                    {
+                        "order_id": self.sale_order_id.id,
+                        "product_template_id": line.warranty_config_id.product_template_id.id,
+                        "name": "Extended Warranty of %d Years - %s"
+                        % (line.warranty_config_id.years, product.name),
+                        "product_uom_qty": 1,
+                        "linked_line_id": line.sale_order_line_id.id,
+                        "price_unit": (line.warranty_config_id.percentage / 100)
+                        * line.sale_order_line_id.price_subtotal,
+                    }
+                )
+
+        return {"type": "ir.actions.act_window_close"}

product_warranty/wizard/product_warranty_wizard_line.py

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+from datetime import datetime
+from dateutil.relativedelta import relativedelta
+
+from odoo import models, fields, api
+
+
+class WarrantyWizardLine(models.TransientModel):
+    _name = "product.warranty.wizard.line"
+    _description = "Warranty Wizard Line"
+
+    wizard_id = fields.Many2one("product.warranty.wizard", string="Wizard")
+    sale_order_line_id = fields.Many2one("sale.order.line", string="Sale Order Line")
+    product_template_id = fields.Many2one(
+        "product.template", string="Product", compute="_compute_product_template_id"
+    )
+    warranty_config_id = fields.Many2one(
+        "product.warranty.config", string="Warranty Type"
+    )
+    date_end = fields.Date(string="Date End", compute="_compute_date_end")
+
+    @api.depends("warranty_config_id.years")
+    def _compute_date_end(self):
+        for line in self:
+            line.date_end = datetime.today() + relativedelta(
+                years=line.warranty_config_id.years
+            )
+
+    @api.depends("sale_order_line_id")
+    def _compute_product_template_id(self):
+        for line in self:
+            if line.sale_order_line_id:
+                line.product_template_id = line.sale_order_line_id.product_template_id
+            else:
+                line.product_template_id = False

product_warranty/wizard/product_warranty_wizard_view.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_product_warranty_wizard_form" model="ir.ui.view">
+        <field name="name">product.warranty.wizard.form</field>
+        <field name="model">product.warranty.wizard</field>
+        <field name="arch" type="xml">
+            <form string="Add Warranty" nolabel="1">
+                <sheet>
+                    <group>
+                        <field name="sale_order_id" invisible="1"/>
+                        <field name="line_ids">
+                            <list editable="bottom" delete="0" create="0">
+                                <field name="product_template_id" readonly="1"/>
+                                <field name="warranty_config_id" options="{'no_create': True}"/>
+                                <field name="date_end" readonly="1"/>
+                            </list>
+                        </field>
+                    </group>
+                    <footer>
+                        <button string="Apply" type="object" name="apply_warranty" class="btn-primary"/>
+                        <button string="Cancel" class="btn-secondary" special="cancel"/>
+                    </footer>
+                </sheet>
+            </form>
+        </field>
+    </record>
+</odoo>