complete first version of main proccess
This commit is contained in:
parent
6ff4740d04
commit
f2fc2362a7
61 changed files with 3280 additions and 28 deletions
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@ -11,6 +11,7 @@ import json
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from processes.models import ProcessInstance, ProcessStep, StepInstance
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from .models import Item, Quote, QuoteItem, Payment, Invoice
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from installations.models import InstallationReport, InstallationItemChange
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@login_required
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def quote_step(request, instance_id, step_id):
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@ -413,3 +414,358 @@ def approve_payments(request, instance_id, step_id):
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msg += ' - توجه: مبلغ پیشفاکتور به طور کامل پرداخت نشده است.'
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return JsonResponse({'success': True, 'message': msg, 'redirect': redirect_url, 'is_fully_paid': is_fully_paid})
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@login_required
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def final_invoice_step(request, instance_id, step_id):
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"""تجمیع اقلام پیشفاکتور با تغییرات نصب و صدور فاکتور نهایی"""
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instance = get_object_or_404(
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ProcessInstance.objects.select_related('process', 'well', 'requester', 'representative', 'representative__profile'),
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id=instance_id
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)
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step = get_object_or_404(instance.process.steps, id=step_id)
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if not instance.can_access_step(step):
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messages.error(request, 'شما به این مرحله دسترسی ندارید. ابتدا مراحل قبلی را تکمیل کنید.')
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return redirect('processes:request_list')
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quote = get_object_or_404(Quote, process_instance=instance)
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# Helper to make safe Decimal from various inputs (handles commas/persian digits)
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def _to_decimal(value):
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if isinstance(value, Decimal):
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return value
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try:
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if isinstance(value, (int, float)):
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return Decimal(str(value))
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s = str(value or '').strip()
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if not s:
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return Decimal('0')
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# normalize commas and Persian digits
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persian = '۰۱۲۳۴۵۶۷۸۹'
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latin = '0123456789'
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tbl = str.maketrans({persian[i]: latin[i] for i in range(10)})
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s = s.translate(tbl).replace(',', '')
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return Decimal(s)
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except Exception:
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return Decimal('0')
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# Build initial map from quote
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item_id_to_row = {}
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for qi in quote.items.all():
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item_id_to_row[qi.item_id] = {
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'item': qi.item,
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'base_qty': qi.quantity,
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'base_price': _to_decimal(qi.unit_price),
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'added_qty': 0,
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'removed_qty': 0,
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}
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# Read installation changes from latest report (if any)
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latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
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if latest_report:
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for ch in latest_report.item_changes.all():
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row = item_id_to_row.setdefault(ch.item_id, {
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'item': ch.item,
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'base_qty': 0,
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'base_price': _to_decimal(ch.unit_price or ch.item.unit_price),
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'added_qty': 0,
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'removed_qty': 0,
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})
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if ch.change_type == 'add':
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row['added_qty'] += ch.quantity
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if ch.unit_price:
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row['base_price'] = _to_decimal(ch.unit_price)
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else:
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row['removed_qty'] += ch.quantity
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if ch.unit_price:
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row['base_price'] = _to_decimal(ch.unit_price)
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# Compute final invoice lines
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rows = []
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total_amount = Decimal('0')
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for _, r in item_id_to_row.items():
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final_qty = max(0, (r['base_qty'] + r['added_qty'] - r['removed_qty']))
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if final_qty == 0:
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continue
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unit_price_dec = _to_decimal(r['base_price'])
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line_total = Decimal(final_qty) * unit_price_dec
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total_amount += line_total
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rows.append({
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'item': r['item'],
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'quantity': final_qty,
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'unit_price': unit_price_dec,
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'total_price': line_total,
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'base_qty': r['base_qty'],
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'added_qty': r['added_qty'],
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'removed_qty': r['removed_qty'],
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})
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# Create or reuse final invoice
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invoice, _ = Invoice.objects.get_or_create(
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process_instance=instance,
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customer=quote.customer,
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quote=quote,
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defaults={
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'name': f"فاکتور نهایی {instance.code}",
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'due_date': timezone.now().date(),
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'created_by': request.user,
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}
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)
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# Replace only non-special items (preserve special charges added by user)
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qs = invoice.items.select_related('item').filter(item__is_special=False)
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try:
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qs._raw_delete(qs.db)
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except Exception:
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qs.delete()
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for r in rows:
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from .models import InvoiceItem
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InvoiceItem.objects.create(
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invoice=invoice,
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item=r['item'],
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quantity=r['quantity'],
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unit_price=r['unit_price'],
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)
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invoice.calculate_totals()
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previous_step = instance.process.steps.filter(order__lt=step.order).last()
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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# Choices for special items from DB
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special_choices = list(Item.objects.filter(is_special=True).values('id', 'name'))
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return render(request, 'invoices/final_invoice_step.html', {
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'instance': instance,
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'step': step,
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'invoice': invoice,
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'rows': rows,
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'special_choices': special_choices,
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'invoice_specials': invoice.items.select_related('item').filter(item__is_special=True, is_deleted=False).all(),
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'previous_step': previous_step,
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'next_step': next_step,
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})
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@login_required
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def final_invoice_print(request, instance_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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items = invoice.items.select_related('item').filter(is_deleted=False).all()
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return render(request, 'invoices/final_invoice_print.html', {
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'instance': instance,
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'invoice': invoice,
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'items': items,
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})
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@require_POST
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@login_required
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def approve_final_invoice(request, instance_id, step_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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step = get_object_or_404(instance.process.steps, id=step_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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# Block approval when there is any remaining (positive or negative)
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invoice.calculate_totals()
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if invoice.remaining_amount != 0:
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return JsonResponse({
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'success': False,
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'message': f"تا زمانی که مانده فاکتور صفر نشده امکان تایید نیست (مانده فعلی: {invoice.remaining_amount})"
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})
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# mark step completed
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step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step=step)
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step_instance.status = 'completed'
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step_instance.completed_at = timezone.now()
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step_instance.save()
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# move to next
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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redirect_url = reverse('processes:request_list')
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if next_step:
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instance.current_step = next_step
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instance.save()
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redirect_url = reverse('processes:step_detail', args=[instance.id, next_step.id])
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return JsonResponse({'success': True, 'message': 'فاکتور نهایی تایید شد', 'redirect': redirect_url})
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@require_POST
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@login_required
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def add_special_charge(request, instance_id, step_id):
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"""افزودن هزینه ویژه تعمیر/تعویض به فاکتور نهایی بهصورت آیتم جداگانه"""
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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# charge_type was removed from UI; we no longer require it
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item_id = request.POST.get('item_id')
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amount = (request.POST.get('amount') or '').strip()
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if not item_id:
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return JsonResponse({'success': False, 'message': 'آیتم را انتخاب کنید'})
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try:
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amount_dec = Decimal(amount)
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except (InvalidOperation, TypeError):
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return JsonResponse({'success': False, 'message': 'مبلغ نامعتبر است'})
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if amount_dec <= 0:
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return JsonResponse({'success': False, 'message': 'مبلغ باید مثبت باشد'})
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# Fetch existing special item from DB
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special_item = get_object_or_404(Item, id=item_id, is_special=True)
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from .models import InvoiceItem
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InvoiceItem.objects.create(
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invoice=invoice,
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item=special_item,
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quantity=1,
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unit_price=amount_dec,
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)
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invoice.calculate_totals()
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return JsonResponse({'success': True, 'redirect': reverse('invoices:final_invoice_step', args=[instance.id, step_id])})
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@require_POST
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@login_required
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def delete_special_charge(request, instance_id, step_id, item_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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from .models import InvoiceItem
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inv_item = get_object_or_404(InvoiceItem, id=item_id, invoice=invoice)
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# allow deletion only for special items
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try:
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if not getattr(inv_item.item, 'is_special', False):
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return JsonResponse({'success': False, 'message': 'امکان حذف این مورد وجود ندارد'})
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except Exception:
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return JsonResponse({'success': False, 'message': 'امکان حذف این مورد وجود ندارد'})
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inv_item.hard_delete()
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invoice.calculate_totals()
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return JsonResponse({'success': True, 'redirect': reverse('invoices:final_invoice_step', args=[instance.id, step_id])})
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@login_required
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def final_settlement_step(request, instance_id, step_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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step = get_object_or_404(instance.process.steps, id=step_id)
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if not instance.can_access_step(step):
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messages.error(request, 'شما به این مرحله دسترسی ندارید. ابتدا مراحل قبلی را تکمیل کنید.')
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return redirect('processes:request_list')
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invoice = get_object_or_404(Invoice, process_instance=instance)
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previous_step = instance.process.steps.filter(order__lt=step.order).last()
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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return render(request, 'invoices/final_settlement_step.html', {
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'instance': instance,
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'step': step,
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'invoice': invoice,
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'payments': invoice.payments.filter(is_deleted=False).all(),
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'previous_step': previous_step,
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'next_step': next_step,
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})
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@require_POST
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@login_required
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def add_final_payment(request, instance_id, step_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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amount = (request.POST.get('amount') or '').strip()
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payment_date = (request.POST.get('payment_date') or '').strip()
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payment_method = (request.POST.get('payment_method') or '').strip()
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reference_number = (request.POST.get('reference_number') or '').strip()
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direction = (request.POST.get('direction') or 'in').strip()
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receipt_image = request.FILES.get('receipt_image')
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if not amount:
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return JsonResponse({'success': False, 'message': 'مبلغ را وارد کنید'})
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if not payment_date:
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return JsonResponse({'success': False, 'message': 'تاریخ پرداخت را وارد کنید'})
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if not payment_method:
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return JsonResponse({'success': False, 'message': 'روش پرداخت را انتخاب کنید'})
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if not reference_number:
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return JsonResponse({'success': False, 'message': 'شماره مرجع را وارد کنید'})
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if not receipt_image:
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return JsonResponse({'success': False, 'message': 'تصویر فیش الزامی است'})
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if '/' in payment_date:
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payment_date = payment_date.replace('/', '-')
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try:
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amount_dec = Decimal(amount)
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except InvalidOperation:
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return JsonResponse({'success': False, 'message': 'مبلغ نامعتبر است'})
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# Only allow outgoing (پرداخت به مشتری) when current net due is negative
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# Compute net due explicitly from current items/payments
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try:
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current_paid = sum((p.amount if p.direction == 'in' else -p.amount) for p in invoice.payments.filter(is_deleted=False).all())
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except Exception:
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current_paid = Decimal('0')
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# Ensure invoice totals are up-to-date for final_amount
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invoice.calculate_totals()
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net_due = invoice.final_amount - current_paid
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if direction == 'out' and net_due >= 0:
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return JsonResponse({'success': False, 'message': 'در حال حاضر مانده به نفع مشتری نیست'})
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# Amount constraints by sign of net due
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if net_due > 0 and direction == 'in' and amount_dec > net_due:
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return JsonResponse({'success': False, 'message': 'مبلغ فیش بیشتر از مانده فاکتور است'})
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if net_due < 0 and direction == 'out' and amount_dec > abs(net_due):
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return JsonResponse({'success': False, 'message': 'مبلغ فیش بیشتر از مانده بدهی شرکت به مشتری است'})
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if net_due < 0 and direction == 'in':
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return JsonResponse({'success': False, 'message': 'در حال حاضر مانده به نفع مشتری است؛ دریافت از مشتری مجاز نیست'})
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Payment.objects.create(
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invoice=invoice,
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amount=amount_dec,
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payment_date=payment_date,
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payment_method=payment_method,
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reference_number=reference_number,
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direction='in' if direction != 'out' else 'out',
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receipt_image=receipt_image,
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created_by=request.user,
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)
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# After creation, totals auto-updated by model save. Respond with redirect and new totals for UX.
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invoice.refresh_from_db()
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return JsonResponse({
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'success': True,
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'redirect': reverse('invoices:final_settlement_step', args=[instance.id, step_id]),
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'totals': {
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'final_amount': str(invoice.final_amount),
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'paid_amount': str(invoice.paid_amount),
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'remaining_amount': str(invoice.remaining_amount),
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}
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})
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@require_POST
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@login_required
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def delete_final_payment(request, instance_id, step_id, payment_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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payment = get_object_or_404(Payment, id=payment_id, invoice=invoice)
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payment.delete()
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invoice.refresh_from_db()
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return JsonResponse({'success': True, 'redirect': reverse('invoices:final_settlement_step', args=[instance.id, step_id]), 'totals': {
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'final_amount': str(invoice.final_amount),
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'paid_amount': str(invoice.paid_amount),
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'remaining_amount': str(invoice.remaining_amount),
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}})
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@require_POST
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@login_required
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def approve_final_settlement(request, instance_id, step_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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step = get_object_or_404(instance.process.steps, id=step_id)
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invoice = get_object_or_404(Invoice, process_instance=instance)
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# Block approval if any remaining exists (positive or negative)
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invoice.calculate_totals()
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if invoice.remaining_amount != 0:
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return JsonResponse({
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'success': False,
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'message': f"تا زمانی که مانده فاکتور صفر نشده امکان تایید نیست (مانده فعلی: {invoice.remaining_amount})"
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})
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# complete step
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step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step=step)
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step_instance.status = 'completed'
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step_instance.completed_at = timezone.now()
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step_instance.save()
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# move next
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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redirect_url = reverse('processes:request_list')
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if next_step:
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instance.current_step = next_step
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instance.save()
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redirect_url = reverse('processes:step_detail', args=[instance.id, next_step.id])
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return JsonResponse({'success': True, 'message': 'تسویه حساب نهایی ثبت شد', 'redirect': redirect_url})
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