[IMP] installments: inplement new feature in the module

- Implemented cron job functionality in installments_cron.py
- Implemented  configuration settings in res_config_settings.py
- Managed installment-related documents in installments_documents.py
- Created XML views for installments and settings in installments_view.xml and
  res_config_setting_view.xml

installments/__manifest__.py

@@ -3,10 +3,11 @@
     'version': '1.0',
     'category': 'Sales',
     'author': 'odoo',
-    'depends': ['base', 'sale_subscription'],
+    'depends': ['base', 'sale_subscription', 'documents'],
     'data': [
         'security/ir.model.access.csv',
         'wizard/action_open_emi_wizard_view.xml',
+        'data/installments_cron.xml',
         'data/installments_product_data.xml',
         'view/res_config_setting_view.xml',
         'view/installments_view.xml'

installments/data/installments_cron.xml

@@ -0,0 +1,12 @@
+<odoo>
+    <record id="installment_penalty_scheduled_action" model="ir.cron">
+        <field name="name">Installment Penalty Scheduler</field>
+        <field name="model_id" ref="model_sale_order"/>
+        <field name="state">code</field>
+        <field name="code">model.schedule_penalty_invoices()</field>
+        <field name="interval_number">1</field>
+        <field name="interval_type">days</field>
+        <field name="numbercall">-1</field>
+        <field name="active" eval="True"/>
+    </record>
+</odoo>

installments/data/installments_product_data.xml

@@ -7,4 +7,8 @@
     <record id="emi_product" model="product.product">
         <field name="name">Monthly EMI</field>
     </record>
+
+    <record id="product3" model="product.product">
+        <field name="name">Fine</field>
+    </record>
 </odoo>

installments/models/__init__.py

@@ -1 +1,3 @@
 from . import res_config_settings
+from . import installments_cron
+from . import installments_documents

installments/models/installments_cron.py

@@ -0,0 +1,31 @@
+from odoo import models, fields
+from datetime import timedelta, datetime
+
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    installment_amount = fields.Integer(string="Installment Amount")
+    is_installable = fields.Boolean(default=False)
+
+    def schedule_penalty_invoices(self):
+        unpaid_orders = self.search([('is_installable', '!=', False)])
+        for order in unpaid_orders:
+            penalty_percentage = self.env['ir.config_parameter'].get_param('installments.delay_penalty_perc', default=0)
+            penalty_days = int(self.env['ir.config_parameter'].get_param('installments.delay_penalty_process', default=0))
+            last_payment_date = max(order.invoice_ids.mapped('invoice_date')) if order.invoice_ids else order.date_order.date()
+            if datetime.now().date() == last_payment_date + timedelta(days=penalty_days):
+                penalty_amount = int(order.installment_amount * int(float(penalty_percentage))) / 100
+                vals_list = {
+                    'move_type': 'out_invoice',
+                    'partner_id': order.partner_id.id,
+                    'invoice_line_ids': [(0, 0, {
+                        'product_id': self.env.ref('installments.emi_product').id,
+                        'quantity': 1,
+                        'price_unit': penalty_amount,
+                        'sale_line_ids': [(fields.Command.set(order.order_line.mapped('id')))]
+                    })],
+                    'invoice_date': fields.Date.today(),
+                }
+                invoice = self.env['account.move'].create(vals_list)
+                invoice.action_post()

installments/models/installments_documents.py

@@ -0,0 +1,89 @@
+from odoo import models
+
+
+class InstallmentsDocuments(models.Model):
+    _inherit = 'sale.order'
+
+    def create_sale_order_folder(self):
+        """
+        This method is responsible for creating or retrieving the Installments folder and
+        the specific folder for the sale order. It returns the folder where documents
+        will be uploaded.
+        """
+        # Get or create the Installments parent folder
+        installments_folder = self.env["documents.folder"].search(
+            [("name", "=", "Installments")], limit=1
+        )
+        if not installments_folder:
+            installments_folder = self.env["documents.folder"].create(
+                {"name": "Installments"}
+            )
+        # Define the folder name based on sale order
+        folder_name = self.name.replace("/", "_")
+        # Check if a folder for the current sale order exists
+        folder = self.env["documents.folder"].search(
+            [
+                ("name", "=", folder_name),
+                ("parent_folder_id", "=", installments_folder.id),
+            ],
+            limit=1,
+        )
+        # If the folder doesn't exist, create it
+        if not folder:
+            folder = self.env["documents.folder"].create(
+                {"name": folder_name, "parent_folder_id": installments_folder.id}
+            )
+        return folder
+
+    def action_upload_documents(self):
+        """
+        This method retrieves required documents based on the configuration settings,
+        and uploads placeholders for the required documents in the folder created for the sale order.
+        """
+        config_settings = self.env["ir.config_parameter"]
+        document_settings = {
+            "nid": "National ID (NID)",
+            "bank_statement": "Bank Statement",
+            "rental_contract": "Rental Contract",
+            "salary_components": "Salary Components",
+            "bank_rate_letter": "Bank Rate Letter",
+            "owernship_contract": "Ownership Contract",
+        }
+        # Get the required documents based on the configuration settings
+        required_documents = [
+            document_name
+            for setting_key, document_name in document_settings.items()
+            if config_settings.get_param(f"installments.{setting_key}", default=False)
+        ]
+        for order in self:
+            # Call the function to create or get the folder for the sale order
+            folder = order.create_sale_order_folder()
+            # Create document placeholders for the required documents if they don't exist
+            for doc_name in required_documents:
+                existing_doc = self.env["documents.document"].search(
+                    [
+                        ("folder_id", "=", folder.id),
+                        ("name", "=", doc_name),
+                        ("res_model", "=", "sale.order"),
+                        ("res_id", "=", order.id),
+                    ]
+                )
+                if not existing_doc:
+                    self.env["documents.document"].create(
+                        {
+                            "name": doc_name,
+                            "folder_id": folder.id,
+                            "partner_id": order.partner_id.id,
+                            "res_model": "sale.order",
+                            "res_id": order.id,
+                        }
+                    )
+        # Return an action to display the documents in the folder
+        return {
+            "type": "ir.actions.act_window",
+            "name": "Documents",
+            "res_model": "documents.document",
+            "view_mode": "kanban,tree,form",
+            "domain": [("folder_id", "=", folder.id)],
+            "context": {"folder_id": folder.id},
+        }

installments/view/installments_view.xml

@@ -5,12 +5,18 @@
         <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">
+                <xpath expr="//button[@name='action_open_discount_wizard']" position="before">
                     <button string="Add EMI"
                         name="%(installments.action_open_emi_wizard)d"
                         type="action"
                         class="btn btn-primary"/>
                 </xpath>
+                <xpath expr="//div[@name='button_box']" position="inside">
+                    <button class="btn oe_stat_button btn-outline-secondary flex-grow-1 flex-lg-grow-0" name="action_upload_documents" type="object">
+                        <i class="o_button_icon fa fa-fw fa-file-pdf-o"></i>
+                        <span class="o_stat_text">Upload Documents</span>
+                    </button>
+                </xpath>
             </field>
     </record>
 </odoo>

installments/wizard/action_open_emi_wizard.py

@@ -43,13 +43,15 @@ def add_installment(self):
             'product_id': self.env.ref('installments.installment_product').id,
             'order_id': self.env.context.get('active_id'),
             'name': "Installment",
-            'product_uom_qty' : 1,
+            'product_uom_qty': 1,
             'price_unit': self.installment_amount
         }, {
             'product_id': self.env.ref('installments.emi_product').id,
             'order_id': self.env.context.get('active_id'),
             'name': "Monthly EMI",
-            'product_uom_qty' : 4,
+            'product_uom_qty': 4,
             'price_unit': -(self.installment_amount)
         }]
         self.env['sale.order.line'].create(move_vals)
+        self.env['sale.order'].browse(self.env.context.get('active_id')).is_installable = True
+        self.env['sale.order'].browse(self.env.context.get('active_id')).installment_amount = self.installment_amount