[ADD] hr_fleet: Add claim report and cars history per employee

Purpose
=======

When an employee leaves the company, the fleet manager must ask to the insurance company
a claim report for this employee. But in oddo, there is no easy way to have an history
of the drivers.

Specification
=============

1/ On the employee form, add a stat button: "x cars". The button shouldn't be displayed if the count = 0.
   Make a bridge (auto_install: True in the manifest) depending on hr (hr.employee) and fleet (fleet.vehicle.assignation.log)
   - Add a field employee_cars_count (computed) to count the amount of cars the employee drove.
   - Add an method action_open_employee_cars, that return an action (ir.actions.act_window)
     that open on the fleet.vehicle kanban filtered on cars the employee had driven.
2/ In this bridge module, add on the fleet.vehicle.assignation.logs a button (like in expense) to upload
   documents about the car for a particular employee (PV, rapport d'assurance, blabla). On the employee
   form view, add an action button (with groups fleet_manager) to print all the related documents
   (all the attachements on the fleet.vehicle.assignation.logs for the employee).

closes odoo/odoo#28077

3 files changed, 69 insertions, 0 deletions

diff --git a/addons/hr_fleet/models/__init__.py b/addons/hr_fleet/models/__init__.py
new file mode 100644
index 00000000000..042da9efb91
--- /dev/null
+++ b/addons/hr_fleet/models/__init__.py
@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import employee
+from . import fleet_vehicle_assignation_log
diff --git a/addons/hr_fleet/models/employee.py b/addons/hr_fleet/models/employee.py
new file mode 100644
index 00000000000..57c7441e732
--- /dev/null
+++ b/addons/hr_fleet/models/employee.py
@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+
+from odoo import fields, models
+
+class Employee(models.Model):
+    _inherit = 'hr.employee'
+
+    employee_cars_count = fields.Integer(compute="_compute_employee_cars_count", string="Cars", group="fleet_manager")
+
+    def action_open_employee_cars(self):
+        self.ensure_one()
+        cars = self.env['fleet.vehicle.assignation.log'].search([
+            ('driver_id', '=', self.user_id.partner_id.id)]).mapped('vehicle_id')
+
+        return {
+            "type": "ir.actions.act_window",
+            "res_model": "fleet.vehicle",
+            "views": [[False, "kanban"], [False, "form"], [False, "tree"]],
+            "domain": [("id", "in", cars.ids)],
+            "name": "History Employee Cars",
+        }
+
+    def _compute_employee_cars_count(self):
+        driver_ids = self.mapped('user_id.partner_id').ids
+        fleet_data = self.env['fleet.vehicle.assignation.log'].read_group(
+            domain=[('driver_id', 'in', driver_ids)], fields=['driver_id'], groupby=['driver_id'])
+        mapped_data = dict([(m['driver_id'][0], m['driver_id_count']) for m in fleet_data])
+        for employee in self:
+            employee.employee_cars_count = mapped_data.get(employee.user_id.partner_id.id, 0)
+
+    def action_get_claim_report(self):
+        self.ensure_one()
+        return {
+            'name': 'Claim Report',
+            'type': 'ir.actions.act_url',
+            'url': '/fleet/print_claim_report/%(employee_id)s' % {'employee_id': self.id},
+        }
diff --git a/addons/hr_fleet/models/fleet_vehicle_assignation_log.py b/addons/hr_fleet/models/fleet_vehicle_assignation_log.py
new file mode 100644
index 00000000000..95e191b8fc8
--- /dev/null
+++ b/addons/hr_fleet/models/fleet_vehicle_assignation_log.py
@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import fields, models
+
+
+class FleetVehicleAssignationLog(models.Model):
+    _inherit = 'fleet.vehicle.assignation.log'
+
+    attachment_number = fields.Integer('Number of Attachments', compute='_compute_attachment_number')
+
+    def _compute_attachment_number(self):
+        attachment_data = self.env['ir.attachment'].read_group([
+            ('res_model', '=', 'fleet.vehicle.assignation.log'),
+            ('res_id', 'in', self.ids)], ['res_id'], ['res_id'])
+        attachment = dict((data['res_id'], data['res_id_count']) for data in attachment_data)
+        for doc in self:
+            doc.attachment_number = attachment.get(doc.id, 0)
+
+    def action_get_attachment_view(self):
+        self.ensure_one()
+        res = self.env['ir.actions.act_window'].for_xml_id('base', 'action_attachment')
+        res['domain'] = [('res_model', '=', 'fleet.vehicle.assignation.log'), ('res_id', 'in', self.ids)]
+        res['context'] = {'default_res_model': 'fleet.vehicle.assignation.log', 'default_res_id': self.id}
+        return res