236 lines
12 KiB
Python
236 lines
12 KiB
Python
"""Financial records are independent of tickets; issued instructions and evidence are snapshots."""
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import uuid
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from pathlib import Path
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from django.conf import settings
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from django.db import models
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from apps.core.models import PublicIdModel, TimeStampedModel
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MAX_AMOUNT = 9_007_199_254_740_991
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class BankInstitution(models.Model):
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code = models.SlugField(unique=True)
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name = models.CharField(max_length=100)
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is_active = models.BooleanField(default=True)
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historical = models.BooleanField(default=False)
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class Meta:
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ordering = ['historical', 'name']
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def __str__(self):
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return self.name
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class CompanyBankAccount(PublicIdModel, TimeStampedModel):
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name = models.CharField('نام نمایشی حساب', max_length=120)
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bank = models.ForeignKey(BankInstitution, on_delete=models.PROTECT, verbose_name='بانک')
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holder = models.CharField('صاحب حساب', max_length=150)
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account_number = models.CharField('شماره حساب', max_length=40, blank=True)
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iban = models.CharField('شبا', max_length=26, blank=True)
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card_number = models.CharField('شماره کارت', max_length=16, blank=True)
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requires_deposit_id = models.BooleanField('شناسه واریز الزامی', default=False)
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is_active = models.BooleanField('فعال کلی', default=True)
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available_to_staff = models.BooleanField('قابل انتخاب کارشناسان', default=True)
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available_to_customers = models.BooleanField('قابل انتخاب مشتریان', default=True)
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sort_order = models.PositiveIntegerField(default=0)
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class Meta:
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ordering = ['sort_order', 'name', 'pk']
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permissions = [('manage_company_bankaccounts', 'Manage company bank accounts')]
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def __str__(self):
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return self.name
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def snapshot(self):
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return {key: getattr(self, key) for key in ('name', 'holder', 'account_number', 'iban', 'card_number', 'requires_deposit_id')} | {'bank': self.bank.name, 'id': str(self.public_id)}
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class PaymentAccessConfiguration(models.Model):
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singleton = models.PositiveSmallIntegerField(default=1, unique=True, editable=False)
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open_view = models.BooleanField('مشاهده برای همه کارشناسان فعال', default=True)
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open_create = models.BooleanField('ایجاد برای همه کارشناسان فعال', default=True)
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class Meta:
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permissions = [('manage_payment_access', 'Manage payment access')]
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class PaymentApprovalPolicy(TimeStampedModel):
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name = models.CharField('عنوان سیاست', max_length=100)
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unit = models.ForeignKey('staff.OrganizationalUnit', null=True, blank=True, on_delete=models.PROTECT, verbose_name='واحد (خالی: عمومی)')
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reviewers = models.ManyToManyField(settings.AUTH_USER_MODEL, related_name='payment_review_policies', verbose_name='افراد الزامی تأیید')
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seniors = models.ManyToManyField(settings.AUTH_USER_MODEL, related_name='payment_senior_policies', blank=True, verbose_name='تأییدکنندگان ارشد')
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is_active = models.BooleanField(default=True)
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class Meta:
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constraints = [
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models.UniqueConstraint(fields=['unit'], condition=models.Q(is_active=True, unit__isnull=False), name='pay_active_unit_policy'),
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models.UniqueConstraint(fields=['is_active'], condition=models.Q(is_active=True, unit__isnull=True), name='pay_active_global_policy'),
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]
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permissions = [('manage_payment_approval_policy', 'Manage payment approval policy')]
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def __str__(self):
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return self.name
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class PaymentNotice(PublicIdModel, TimeStampedModel):
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issuance_key = models.UUIDField(default=uuid.uuid4, unique=True, editable=False)
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customer = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, related_name='payment_notices')
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created_by = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, related_name='issued_payment_notices')
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owning_unit = models.ForeignKey('staff.OrganizationalUnit', null=True, on_delete=models.PROTECT)
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account = models.ForeignKey(CompanyBankAccount, on_delete=models.PROTECT)
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account_snapshot = models.JSONField()
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subject = models.CharField(max_length=200)
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amount = models.BigIntegerField()
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deposit_id = models.CharField(max_length=100, blank=True)
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invoice_number = models.CharField(max_length=100, blank=True)
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description = models.TextField(blank=True)
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cancelled_at = models.DateTimeField(null=True, blank=True)
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deleted_at = models.DateTimeField(null=True, blank=True, editable=False)
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class Meta:
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ordering = ['-created_at', '-pk']
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constraints = [models.CheckConstraint(condition=models.Q(amount__gt=0, amount__lte=MAX_AMOUNT), name='pay_notice_amount')]
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indexes = [models.Index(fields=['customer', '-created_at']), models.Index(fields=['owning_unit', '-created_at'])]
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@property
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def number(self):
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return f'PN-{self.public_id.hex[:12].upper()}'
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class PaymentReceipt(PublicIdModel, TimeStampedModel):
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class Status(models.TextChoices):
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PENDING = 'PENDING', 'در انتظار بررسی'
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PARTIAL = 'PARTIAL', 'تأیید ناقص'
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APPROVED = 'APPROVED', 'تأیید شده'
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REJECTED = 'REJECTED', 'رد شده'
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customer = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, related_name='payment_receipts')
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submitted_by = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT, related_name='submitted_payment_receipts')
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notice = models.ForeignKey(PaymentNotice, null=True, blank=True, on_delete=models.PROTECT, related_name='receipts')
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owning_unit = models.ForeignKey('staff.OrganizationalUnit', null=True, on_delete=models.PROTECT)
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status = models.CharField(max_length=12, choices=Status.choices, default=Status.PENDING, db_index=True)
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submission_key = models.UUIDField(unique=True)
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current_version = models.PositiveIntegerField(default=1)
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class Meta:
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ordering = ['-created_at', '-pk']
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indexes = [models.Index(fields=['customer', '-created_at']), models.Index(fields=['status', '-created_at'])]
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permissions = [('approve_paymentreceipt', 'Approve payment receipt'), ('senior_approve_paymentreceipt', 'Senior final approval'), ('submit_customer_receipt', 'Submit receipt for customer'), ('view_all_payments', 'View payments across units')]
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@property
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def number(self):
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return f'PR-{self.public_id.hex[:12].upper()}'
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def receipt_path(instance, filename):
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return f'payments/{instance.created_at:%Y/%m}/{uuid.uuid4().hex}{Path(filename).suffix.lower()}'
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class PaymentReceiptRevision(models.Model):
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receipt = models.ForeignKey(PaymentReceipt, on_delete=models.PROTECT, related_name='revisions')
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version = models.PositiveIntegerField()
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amount = models.BigIntegerField()
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paid_date = models.DateField()
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destination = models.ForeignKey(CompanyBankAccount, on_delete=models.PROTECT)
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account_snapshot = models.JSONField()
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origin_bank = models.ForeignKey(BankInstitution, null=True, blank=True, on_delete=models.PROTECT)
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origin_other = models.CharField(max_length=100, blank=True)
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deposit_id = models.CharField(max_length=100, blank=True)
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tracking_number = models.CharField(max_length=100, blank=True)
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description = models.TextField(blank=True)
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destination_mismatch = models.BooleanField(default=False)
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created_at = models.DateTimeField(auto_now_add=True)
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image = models.FileField(upload_to=receipt_path, max_length=500)
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mime_type = models.CharField(max_length=100)
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sha256 = models.CharField(max_length=64)
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original_name = models.CharField(max_length=255)
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file_size = models.PositiveBigIntegerField()
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class Meta:
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constraints = [models.UniqueConstraint(fields=['receipt', 'version'], name='pay_receipt_revision'), models.CheckConstraint(condition=models.Q(amount__gt=0, amount__lte=MAX_AMOUNT), name='pay_receipt_amount')]
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class ReceiptApprovalCycle(models.Model):
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revision = models.OneToOneField(PaymentReceiptRevision, on_delete=models.PROTECT, related_name='cycle')
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policy_snapshot = models.JSONField(default=dict)
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status = models.CharField(max_length=12, choices=PaymentReceipt.Status.choices, default=PaymentReceipt.Status.PENDING)
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finalized_by = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, blank=True, on_delete=models.PROTECT)
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finalized_at = models.DateTimeField(null=True, blank=True)
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class ReceiptApprovalAssignment(models.Model):
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cycle = models.ForeignKey(ReceiptApprovalCycle, on_delete=models.PROTECT, related_name='assignments')
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user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT)
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is_senior = models.BooleanField(default=False)
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class Meta:
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constraints = [models.UniqueConstraint(fields=['cycle', 'user', 'is_senior'], name='pay_cycle_assignment')]
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class ReceiptDecision(models.Model):
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cycle = models.ForeignKey(ReceiptApprovalCycle, on_delete=models.PROTECT, related_name='decisions')
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user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT)
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action = models.CharField(max_length=20, choices=[('APPROVE', 'تأیید'), ('REJECT', 'رد'), ('SENIOR_APPROVE', 'تأیید ارشد')])
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reason = models.TextField(blank=True)
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actor_name = models.CharField(max_length=150)
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created_at = models.DateTimeField(auto_now_add=True)
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class Meta:
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constraints = [models.UniqueConstraint(fields=['cycle', 'user'], name='pay_one_vote_per_user')]
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class PaymentAuditEvent(models.Model):
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actor = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, on_delete=models.SET_NULL)
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actor_name = models.CharField(max_length=150)
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action = models.CharField(max_length=50)
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object_type = models.CharField(max_length=50)
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object_id = models.CharField(max_length=64)
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details = models.JSONField(default=dict)
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created_at = models.DateTimeField(auto_now_add=True, db_index=True)
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class Meta:
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ordering = ['-created_at', '-pk']
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permissions = [('view_payment_audit', 'View financial audit')]
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class PaymentAccessLink(models.Model):
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"""Revocable capability, separate from customer login and ticket magic links."""
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customer = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT)
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notice = models.ForeignKey(PaymentNotice, null=True, blank=True, on_delete=models.PROTECT)
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receipt = models.ForeignKey(PaymentReceipt, null=True, blank=True, on_delete=models.PROTECT)
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token_hash = models.CharField(max_length=64, unique=True, editable=False)
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created_at = models.DateTimeField(auto_now_add=True)
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expires_at = models.DateTimeField()
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revoked_at = models.DateTimeField(null=True, blank=True)
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submitted_receipts = models.ManyToManyField(PaymentReceipt, blank=True, related_name='access_links')
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view_count = models.PositiveIntegerField(default=0)
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last_used_at = models.DateTimeField(null=True, blank=True)
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class Meta:
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ordering = ['-created_at']
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constraints = [models.CheckConstraint(
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condition=models.Q(notice__isnull=False) | models.Q(receipt__isnull=False),
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name='payment_link_has_target')]
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verbose_name = 'لینک موقت پرداخت'
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verbose_name_plural = 'لینک‌های موقت پرداخت'
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class PaymentNotification(models.Model):
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job = models.OneToOneField('notifications.NotificationJob', on_delete=models.PROTECT, related_name='payment_notification')
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notice = models.ForeignKey(PaymentNotice, null=True, on_delete=models.PROTECT)
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cycle = models.ForeignKey(ReceiptApprovalCycle, null=True, on_delete=models.PROTECT)
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unit = models.ForeignKey('staff.OrganizationalUnit', null=True, on_delete=models.PROTECT)
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context = models.JSONField()
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rendered_body = models.TextField(blank=True)
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template_snapshot = models.JSONField(default=dict)
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access_link = models.ForeignKey(PaymentAccessLink, null=True, blank=True, on_delete=models.PROTECT)
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class PaymentNotificationAttempt(models.Model):
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notification = models.ForeignKey(PaymentNotification, on_delete=models.PROTECT, related_name='attempt_log')
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started_at = models.DateTimeField(auto_now_add=True)
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finished_at = models.DateTimeField(null=True)
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success = models.BooleanField(null=True)
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provider_code = models.CharField(max_length=50, blank=True)
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provider_id = models.CharField(max_length=500, blank=True)
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error = models.TextField(blank=True)
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