init

2025-06-21 09:44:01 +07:00
parent 7819a1d6db
commit 446d1f7d9d
112 changed files with 4951 additions and 8 deletions
@@ -0,0 +1,59 @@
+from odoo import models, fields
+from dateutil.relativedelta import relativedelta
+
+
+class LoanRepaymentPreviewWizard(models.TransientModel):
+    _name = 'loan.repayment.preview.wizard'
+    _description = 'Loan Repayment Preview Wizard'
+
+    loan_request_id = fields.Many2one('loan.request', string='Yêu cầu vay', required=True)
+    preview_line_ids = fields.One2many('loan.repayment.preview.line', 'wizard_id', string='Chi tiết lịch trả', readonly=True)
+
+    def action_generate_preview_schedule(self):
+        self.ensure_one()
+        request = self.loan_request_id
+        self.preview_line_ids.unlink()  # Clear old preview lines
+
+        amount = request.amount
+        term = request.term
+        rate = request.interest_rate
+        repayment_type = request.repayment_type
+        start_date = request.request_datetime.date() or fields.Date.today()
+
+        for i in range(term):
+            due_date = start_date + relativedelta(months=i + 1)
+
+            if repayment_type == 'fixed_principal':
+                principal = amount / term
+                interest = (amount - principal * i) * rate / 100 / 12
+                total = principal + interest
+
+            elif repayment_type == 'annuity':
+                monthly_rate = rate / 100 / 12
+                if monthly_rate == 0:
+                    annuity = amount / term
+                else:
+                    annuity = (amount * monthly_rate) / (1 - (1 + monthly_rate) ** -term)
+                interest = (amount - i * (amount / term)) * monthly_rate
+                principal = annuity - interest
+                total = annuity
+
+            elif repayment_type == 'interest_only':
+                principal = amount if i == term - 1 else 0
+                interest = amount * rate / 100 / 12
+                total = principal + interest
+
+            elif repayment_type == 'lump_sum':
+                principal = amount if i == term - 1 else 0
+                interest = amount * rate / 100 / 12
+                total = principal + interest
+
+            self.env['loan.repayment.preview.line'].create({
+                'wizard_id': self.id,
+                'installment': i + 1,
+                'due_date': due_date,
+                'principal': round(principal, 2),
+                'interest': round(interest, 2),
+                'total': round(total, 2),
+            })
+