771 lines
32 KiB
Python
771 lines
32 KiB
Python
from django.shortcuts import render, get_object_or_404, redirect
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import logging
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from django.contrib.auth.decorators import login_required
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from django.contrib import messages
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from django.http import JsonResponse
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from django.views.decorators.http import require_POST
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from django.utils import timezone
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from django.urls import reverse
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from decimal import Decimal, InvalidOperation
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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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"""مرحله انتخاب اقلام و ساخت پیش‌فاکتور"""
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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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# بررسی دسترسی به مرحله
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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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# دریافت آیتم‌ها
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items = Item.objects.all().order_by('name')
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existing_quote = Quote.objects.filter(process_instance=instance).first()
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existing_quote_items = {}
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if existing_quote:
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existing_quote_items = {qi.item_id: qi.quantity for qi in existing_quote.items.all()}
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step_instance = instance.step_instances.filter(step=step).first()
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# Navigation logic
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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/quote_step.html', {
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'instance': instance,
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'step': step,
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'step_instance': step_instance,
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'items': items,
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'existing_quote_items': existing_quote_items,
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'existing_quote': existing_quote,
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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 create_quote(request, instance_id, step_id):
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"""ساخت/بروزرسانی پیش‌فاکتور از اقلام انتخابی"""
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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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try:
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items_payload = json.loads(request.POST.get('items') or '[]')
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except json.JSONDecodeError:
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return JsonResponse({'success': False, 'message': 'داده‌های اقلام نامعتبر است'})
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# اطمینان از حضور اقلام پیش‌فرض حتی اگر کلاینت ارسال نکرده باشد
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payload_by_id = {}
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for entry in items_payload:
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try:
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iid = int(entry.get('id'))
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payload_by_id[iid] = int(entry.get('qty') or 1)
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except Exception:
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continue
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default_item_ids = set(Item.objects.filter(is_default_in_quotes=True).values_list('id', flat=True))
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if default_item_ids:
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for default_id in default_item_ids:
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if default_id not in payload_by_id:
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# مقدار پیش فرض را قرار بده
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default_qty = Item.objects.filter(id=default_id).values_list('default_quantity', flat=True).first() or 1
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payload_by_id[default_id] = int(default_qty)
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# بازسازی payload نهایی معتبر
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items_payload = [{'id': iid, 'qty': qty} for iid, qty in payload_by_id.items() if qty and qty > 0]
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if not items_payload:
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return JsonResponse({'success': False, 'message': 'هیچ آیتمی انتخاب نشده است'})
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# Create or reuse quote
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quote, _ = Quote.objects.get_or_create(
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process_instance=instance,
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defaults={
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'name': f"پیش‌فاکتور {instance.code}",
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'customer': instance.representative or request.user,
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'valid_until': timezone.now().date(),
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'created_by': request.user,
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}
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)
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# Replace quote items with submitted ones
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quote.items.all().delete()
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for entry in items_payload:
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try:
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item_id = int(entry.get('id'))
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qty = int(entry.get('qty') or 1)
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except (TypeError, ValueError):
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continue
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if qty <= 0:
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continue
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item = Item.objects.filter(id=item_id).first()
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if not item:
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continue
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QuoteItem.objects.create(
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quote=quote,
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item=item,
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quantity=qty,
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unit_price=item.unit_price,
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total_price=item.unit_price * qty,
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)
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quote.calculate_totals()
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# تکمیل مرحله
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step_instance, created = StepInstance.objects.get_or_create(
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process_instance=instance,
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step=step
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)
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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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# انتقال به مرحله بعدی
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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redirect_url = None
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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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# هدایت مستقیم به مرحله پیش‌نمایش پیش‌فاکتور
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redirect_url = reverse('invoices:quote_preview_step', args=[instance.id, next_step.id])
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return JsonResponse({'success': True, 'quote_id': quote.id, 'redirect': redirect_url})
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@login_required
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def quote_preview_step(request, instance_id, step_id):
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"""مرحله صدور پیش‌فاکتور - نمایش و تایید فاکتور"""
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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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# بررسی دسترسی به مرحله
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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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# دریافت پیش‌فاکتور
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quote = get_object_or_404(Quote, process_instance=instance)
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step_instance = instance.step_instances.filter(step=step).first()
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# Navigation logic
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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/quote_preview_step.html', {
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'instance': instance,
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'step': step,
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'step_instance': step_instance,
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'quote': quote,
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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 quote_print(request, instance_id):
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"""صفحه پرینت پیش‌فاکتور"""
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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quote = get_object_or_404(Quote, process_instance=instance)
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return render(request, 'invoices/quote_print.html', {
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'instance': instance,
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'quote': quote,
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})
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@require_POST
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@login_required
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def approve_quote(request, instance_id, step_id):
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"""تایید پیش‌فاکتور و انتقال به مرحله بعدی"""
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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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quote = get_object_or_404(Quote, process_instance=instance)
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# تایید پیش‌فاکتور
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quote.status = 'sent'
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quote.save()
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# تکمیل مرحله
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step_instance, created = StepInstance.objects.get_or_create(
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process_instance=instance,
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step=step
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)
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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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# انتقال به مرحله بعدی
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next_step = instance.process.steps.filter(order__gt=step.order).first()
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redirect_url = None
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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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else:
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# در صورت نبود مرحله بعدی، بازگشت به لیست درخواست‌ها
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redirect_url = reverse('processes:request_list')
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messages.success(request, 'پیش‌فاکتور با موفقیت تایید شد.')
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return JsonResponse({'success': True, 'message': 'پیش‌فاکتور با موفقیت تایید شد.', 'redirect': redirect_url})
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@login_required
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def quote_payment_step(request, instance_id, step_id):
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"""مرحله سوم: ثبت فیش‌های واریزی پیش‌فاکتور"""
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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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# بررسی دسترسی
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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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invoice = Invoice.objects.filter(quote=quote).first()
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payments = invoice.payments.select_related('created_by').filter(is_deleted=False).all() if invoice else []
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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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totals = {
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'final_amount': quote.final_amount,
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'paid_amount': quote.get_paid_amount(),
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'remaining_amount': quote.get_remaining_amount(),
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'is_fully_paid': quote.get_remaining_amount() <= 0,
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}
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step_instance = instance.step_instances.filter(step=step).first()
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return render(request, 'invoices/quote_payment_step.html', {
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'instance': instance,
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'step': step,
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'step_instance': step_instance,
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'quote': quote,
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'payments': payments,
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'totals': totals,
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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_quote_payment(request, instance_id, step_id):
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"""افزودن فیش واریزی جدید برای پیش‌فاکتور"""
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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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quote = get_object_or_404(Quote, process_instance=instance)
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invoice, _ = Invoice.objects.get_or_create(
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process_instance=instance,
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quote=quote,
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defaults={
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'name': f"Invoice {quote.name}",
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'customer': quote.customer,
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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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logger = logging.getLogger(__name__)
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try:
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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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notes = (request.POST.get('notes') or '').strip()
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receipt_image = request.FILES.get('receipt_image')
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# Server-side validation for required fields
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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 را بارگذاری کنید'})
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# Normalize date to YYYY-MM-DD (accept YYYY/MM/DD from Persian datepicker)
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if '/' in payment_date:
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payment_date = payment_date.replace('/', '-')
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# Prevent overpayment
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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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remaining = quote.get_remaining_amount()
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if amount_dec > remaining:
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return JsonResponse({'success': False, 'message': 'مبلغ فیش بیشتر از مانده پیش‌فاکتور است'})
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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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receipt_image=receipt_image,
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notes=notes,
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created_by=request.user,
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)
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except Exception as e:
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logger.exception('Error adding quote payment (instance=%s, step=%s)', instance_id, step_id)
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return JsonResponse({'success': False, 'message': 'خطا در ثبت فیش', 'error': str(e)})
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redirect_url = reverse('invoices:quote_payment_step', args=[instance.id, step.id])
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return JsonResponse({'success': True, 'redirect': redirect_url})
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@require_POST
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@login_required
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def update_quote_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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step = get_object_or_404(instance.process.steps, id=step_id)
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quote = get_object_or_404(Quote, process_instance=instance)
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invoice = Invoice.objects.filter(quote=quote).first()
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if not invoice:
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return JsonResponse({'success': False, 'message': 'فاکتور یافت نشد'})
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payment = get_object_or_404(Payment, id=payment_id, invoice=invoice)
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try:
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amount = request.POST.get('amount')
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payment_date = request.POST.get('payment_date') or payment.payment_date
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payment_method = request.POST.get('payment_method') or payment.payment_method
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reference_number = request.POST.get('reference_number') or ''
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notes = request.POST.get('notes') or ''
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receipt_image = request.FILES.get('receipt_image')
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if amount:
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payment.amount = amount
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payment.payment_date = payment_date
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payment.payment_method = payment_method
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payment.reference_number = reference_number
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payment.notes = notes
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# اگر نیاز به ذخیره عکس در Payment دارید، فیلد آن اضافه شده است
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if receipt_image:
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payment.receipt_image = receipt_image
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payment.save()
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except Exception:
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return JsonResponse({'success': False, 'message': 'خطا در ویرایش فیش'})
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redirect_url = reverse('invoices:quote_payment_step', args=[instance.id, step.id])
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return JsonResponse({'success': True, 'redirect': redirect_url})
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@require_POST
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@login_required
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def delete_quote_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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step = get_object_or_404(instance.process.steps, id=step_id)
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quote = get_object_or_404(Quote, process_instance=instance)
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invoice = Invoice.objects.filter(quote=quote).first()
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if not invoice:
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return JsonResponse({'success': False, 'message': 'فاکتور یافت نشد'})
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payment = get_object_or_404(Payment, id=payment_id, invoice=invoice)
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try:
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# soft delete using project's BaseModel delete override
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payment.delete()
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except Exception:
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return JsonResponse({'success': False, 'message': 'خطا در حذف فیش'})
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redirect_url = reverse('invoices:quote_payment_step', args=[instance.id, step.id])
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return JsonResponse({'success': True, 'redirect': redirect_url})
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@require_POST
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@login_required
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def approve_payments(request, instance_id, step_id):
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"""تایید مرحله پرداخت فیش‌ها و انتقال به مرحله بعد"""
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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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quote = get_object_or_404(Quote, process_instance=instance)
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is_fully_paid = quote.get_remaining_amount() <= 0
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# تکمیل مرحله
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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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# حرکت به مرحله بعد
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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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msg = 'پرداخت‌ها تایید شد'
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if is_fully_paid:
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msg += ' - مبلغ پیش‌فاکتور به طور کامل پرداخت شده است.'
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else:
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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):
|
|
"""تجمیع اقلام پیش‌فاکتور با تغییرات نصب و صدور فاکتور نهایی"""
|
|
instance = get_object_or_404(
|
|
ProcessInstance.objects.select_related('process', 'well', 'requester', 'representative', 'representative__profile'),
|
|
id=instance_id
|
|
)
|
|
step = get_object_or_404(instance.process.steps, id=step_id)
|
|
|
|
if not instance.can_access_step(step):
|
|
messages.error(request, 'شما به این مرحله دسترسی ندارید. ابتدا مراحل قبلی را تکمیل کنید.')
|
|
return redirect('processes:request_list')
|
|
|
|
quote = get_object_or_404(Quote, process_instance=instance)
|
|
|
|
# Helper to make safe Decimal from various inputs (handles commas/persian digits)
|
|
def _to_decimal(value):
|
|
if isinstance(value, Decimal):
|
|
return value
|
|
try:
|
|
if isinstance(value, (int, float)):
|
|
return Decimal(str(value))
|
|
s = str(value or '').strip()
|
|
if not s:
|
|
return Decimal('0')
|
|
# normalize commas and Persian digits
|
|
persian = '۰۱۲۳۴۵۶۷۸۹'
|
|
latin = '0123456789'
|
|
tbl = str.maketrans({persian[i]: latin[i] for i in range(10)})
|
|
s = s.translate(tbl).replace(',', '')
|
|
return Decimal(s)
|
|
except Exception:
|
|
return Decimal('0')
|
|
|
|
# Build initial map from quote
|
|
item_id_to_row = {}
|
|
for qi in quote.items.all():
|
|
item_id_to_row[qi.item_id] = {
|
|
'item': qi.item,
|
|
'base_qty': qi.quantity,
|
|
'base_price': _to_decimal(qi.unit_price),
|
|
'added_qty': 0,
|
|
'removed_qty': 0,
|
|
}
|
|
|
|
# Read installation changes from latest report (if any)
|
|
latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
|
|
if latest_report:
|
|
for ch in latest_report.item_changes.all():
|
|
row = item_id_to_row.setdefault(ch.item_id, {
|
|
'item': ch.item,
|
|
'base_qty': 0,
|
|
'base_price': _to_decimal(ch.unit_price or ch.item.unit_price),
|
|
'added_qty': 0,
|
|
'removed_qty': 0,
|
|
})
|
|
if ch.change_type == 'add':
|
|
row['added_qty'] += ch.quantity
|
|
if ch.unit_price:
|
|
row['base_price'] = _to_decimal(ch.unit_price)
|
|
else:
|
|
row['removed_qty'] += ch.quantity
|
|
if ch.unit_price:
|
|
row['base_price'] = _to_decimal(ch.unit_price)
|
|
|
|
# Compute final invoice lines
|
|
rows = []
|
|
total_amount = Decimal('0')
|
|
for _, r in item_id_to_row.items():
|
|
final_qty = max(0, (r['base_qty'] + r['added_qty'] - r['removed_qty']))
|
|
if final_qty == 0:
|
|
continue
|
|
unit_price_dec = _to_decimal(r['base_price'])
|
|
line_total = Decimal(final_qty) * unit_price_dec
|
|
total_amount += line_total
|
|
rows.append({
|
|
'item': r['item'],
|
|
'quantity': final_qty,
|
|
'unit_price': unit_price_dec,
|
|
'total_price': line_total,
|
|
'base_qty': r['base_qty'],
|
|
'added_qty': r['added_qty'],
|
|
'removed_qty': r['removed_qty'],
|
|
})
|
|
|
|
# Create or reuse final invoice
|
|
invoice, _ = Invoice.objects.get_or_create(
|
|
process_instance=instance,
|
|
customer=quote.customer,
|
|
quote=quote,
|
|
defaults={
|
|
'name': f"فاکتور نهایی {instance.code}",
|
|
'due_date': timezone.now().date(),
|
|
'created_by': request.user,
|
|
}
|
|
)
|
|
# Replace only non-special items (preserve special charges added by user)
|
|
qs = invoice.items.select_related('item').filter(item__is_special=False)
|
|
try:
|
|
qs._raw_delete(qs.db)
|
|
except Exception:
|
|
qs.delete()
|
|
for r in rows:
|
|
from .models import InvoiceItem
|
|
InvoiceItem.objects.create(
|
|
invoice=invoice,
|
|
item=r['item'],
|
|
quantity=r['quantity'],
|
|
unit_price=r['unit_price'],
|
|
)
|
|
invoice.calculate_totals()
|
|
|
|
previous_step = instance.process.steps.filter(order__lt=step.order).last()
|
|
next_step = instance.process.steps.filter(order__gt=step.order).first()
|
|
|
|
# Choices for special items from DB
|
|
special_choices = list(Item.objects.filter(is_special=True).values('id', 'name'))
|
|
|
|
return render(request, 'invoices/final_invoice_step.html', {
|
|
'instance': instance,
|
|
'step': step,
|
|
'invoice': invoice,
|
|
'rows': rows,
|
|
'special_choices': special_choices,
|
|
'invoice_specials': invoice.items.select_related('item').filter(item__is_special=True, is_deleted=False).all(),
|
|
'previous_step': previous_step,
|
|
'next_step': next_step,
|
|
})
|
|
|
|
|
|
@login_required
|
|
def final_invoice_print(request, instance_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
items = invoice.items.select_related('item').filter(is_deleted=False).all()
|
|
return render(request, 'invoices/final_invoice_print.html', {
|
|
'instance': instance,
|
|
'invoice': invoice,
|
|
'items': items,
|
|
})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def approve_final_invoice(request, instance_id, step_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
step = get_object_or_404(instance.process.steps, id=step_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
# Block approval when there is any remaining (positive or negative)
|
|
invoice.calculate_totals()
|
|
# if invoice.remaining_amount != 0:
|
|
# return JsonResponse({
|
|
# 'success': False,
|
|
# 'message': f"تا زمانی که مانده فاکتور صفر نشده امکان تایید نیست (مانده فعلی: {invoice.remaining_amount})"
|
|
# })
|
|
# mark step completed
|
|
step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step=step)
|
|
step_instance.status = 'completed'
|
|
step_instance.completed_at = timezone.now()
|
|
step_instance.save()
|
|
# move to next
|
|
next_step = instance.process.steps.filter(order__gt=step.order).first()
|
|
redirect_url = reverse('processes:request_list')
|
|
if next_step:
|
|
instance.current_step = next_step
|
|
instance.save()
|
|
redirect_url = reverse('processes:step_detail', args=[instance.id, next_step.id])
|
|
return JsonResponse({'success': True, 'message': 'فاکتور نهایی تایید شد', 'redirect': redirect_url})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def add_special_charge(request, instance_id, step_id):
|
|
"""افزودن هزینه ویژه تعمیر/تعویض به فاکتور نهایی به‌صورت آیتم جداگانه"""
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
# charge_type was removed from UI; we no longer require it
|
|
item_id = request.POST.get('item_id')
|
|
amount = (request.POST.get('amount') or '').strip()
|
|
if not item_id:
|
|
return JsonResponse({'success': False, 'message': 'آیتم را انتخاب کنید'})
|
|
try:
|
|
amount_dec = Decimal(amount)
|
|
except (InvalidOperation, TypeError):
|
|
return JsonResponse({'success': False, 'message': 'مبلغ نامعتبر است'})
|
|
if amount_dec <= 0:
|
|
return JsonResponse({'success': False, 'message': 'مبلغ باید مثبت باشد'})
|
|
|
|
# Fetch existing special item from DB
|
|
special_item = get_object_or_404(Item, id=item_id, is_special=True)
|
|
|
|
from .models import InvoiceItem
|
|
InvoiceItem.objects.create(
|
|
invoice=invoice,
|
|
item=special_item,
|
|
quantity=1,
|
|
unit_price=amount_dec,
|
|
)
|
|
invoice.calculate_totals()
|
|
return JsonResponse({'success': True, 'redirect': reverse('invoices:final_invoice_step', args=[instance.id, step_id])})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def delete_special_charge(request, instance_id, step_id, item_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
from .models import InvoiceItem
|
|
inv_item = get_object_or_404(InvoiceItem, id=item_id, invoice=invoice)
|
|
# allow deletion only for special items
|
|
try:
|
|
if not getattr(inv_item.item, 'is_special', False):
|
|
return JsonResponse({'success': False, 'message': 'امکان حذف این مورد وجود ندارد'})
|
|
except Exception:
|
|
return JsonResponse({'success': False, 'message': 'امکان حذف این مورد وجود ندارد'})
|
|
inv_item.hard_delete()
|
|
invoice.calculate_totals()
|
|
return JsonResponse({'success': True, 'redirect': reverse('invoices:final_invoice_step', args=[instance.id, step_id])})
|
|
|
|
|
|
@login_required
|
|
def final_settlement_step(request, instance_id, step_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
step = get_object_or_404(instance.process.steps, id=step_id)
|
|
if not instance.can_access_step(step):
|
|
messages.error(request, 'شما به این مرحله دسترسی ندارید. ابتدا مراحل قبلی را تکمیل کنید.')
|
|
return redirect('processes:request_list')
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
|
|
previous_step = instance.process.steps.filter(order__lt=step.order).last()
|
|
next_step = instance.process.steps.filter(order__gt=step.order).first()
|
|
|
|
return render(request, 'invoices/final_settlement_step.html', {
|
|
'instance': instance,
|
|
'step': step,
|
|
'invoice': invoice,
|
|
'payments': invoice.payments.filter(is_deleted=False).all(),
|
|
'previous_step': previous_step,
|
|
'next_step': next_step,
|
|
})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def add_final_payment(request, instance_id, step_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
amount = (request.POST.get('amount') or '').strip()
|
|
payment_date = (request.POST.get('payment_date') or '').strip()
|
|
payment_method = (request.POST.get('payment_method') or '').strip()
|
|
reference_number = (request.POST.get('reference_number') or '').strip()
|
|
direction = (request.POST.get('direction') or 'in').strip()
|
|
receipt_image = request.FILES.get('receipt_image')
|
|
if not amount:
|
|
return JsonResponse({'success': False, 'message': 'مبلغ را وارد کنید'})
|
|
if not payment_date:
|
|
return JsonResponse({'success': False, 'message': 'تاریخ پرداخت را وارد کنید'})
|
|
if not payment_method:
|
|
return JsonResponse({'success': False, 'message': 'روش پرداخت را انتخاب کنید'})
|
|
if not reference_number:
|
|
return JsonResponse({'success': False, 'message': 'شماره مرجع را وارد کنید'})
|
|
if not receipt_image:
|
|
return JsonResponse({'success': False, 'message': 'تصویر فیش الزامی است'})
|
|
if '/' in payment_date:
|
|
payment_date = payment_date.replace('/', '-')
|
|
try:
|
|
amount_dec = Decimal(amount)
|
|
except InvalidOperation:
|
|
return JsonResponse({'success': False, 'message': 'مبلغ نامعتبر است'})
|
|
# Only allow outgoing (پرداخت به مشتری) when current net due is negative
|
|
# Compute net due explicitly from current items/payments
|
|
try:
|
|
current_paid = sum((p.amount if p.direction == 'in' else -p.amount) for p in invoice.payments.filter(is_deleted=False).all())
|
|
except Exception:
|
|
current_paid = Decimal('0')
|
|
# Ensure invoice totals are up-to-date for final_amount
|
|
invoice.calculate_totals()
|
|
net_due = invoice.final_amount - current_paid
|
|
if direction == 'out' and net_due >= 0:
|
|
return JsonResponse({'success': False, 'message': 'در حال حاضر مانده به نفع مشتری نیست'})
|
|
|
|
# Amount constraints by sign of net due
|
|
if net_due > 0 and direction == 'in' and amount_dec > net_due:
|
|
return JsonResponse({'success': False, 'message': 'مبلغ فیش بیشتر از مانده فاکتور است'})
|
|
if net_due < 0 and direction == 'out' and amount_dec > abs(net_due):
|
|
return JsonResponse({'success': False, 'message': 'مبلغ فیش بیشتر از مانده بدهی شرکت به مشتری است'})
|
|
if net_due < 0 and direction == 'in':
|
|
return JsonResponse({'success': False, 'message': 'در حال حاضر مانده به نفع مشتری است؛ دریافت از مشتری مجاز نیست'})
|
|
|
|
Payment.objects.create(
|
|
invoice=invoice,
|
|
amount=amount_dec,
|
|
payment_date=payment_date,
|
|
payment_method=payment_method,
|
|
reference_number=reference_number,
|
|
direction='in' if direction != 'out' else 'out',
|
|
receipt_image=receipt_image,
|
|
created_by=request.user,
|
|
)
|
|
# After creation, totals auto-updated by model save. Respond with redirect and new totals for UX.
|
|
invoice.refresh_from_db()
|
|
return JsonResponse({
|
|
'success': True,
|
|
'redirect': reverse('invoices:final_settlement_step', args=[instance.id, step_id]),
|
|
'totals': {
|
|
'final_amount': str(invoice.final_amount),
|
|
'paid_amount': str(invoice.paid_amount),
|
|
'remaining_amount': str(invoice.remaining_amount),
|
|
}
|
|
})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def delete_final_payment(request, instance_id, step_id, payment_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
payment = get_object_or_404(Payment, id=payment_id, invoice=invoice)
|
|
payment.delete()
|
|
invoice.refresh_from_db()
|
|
return JsonResponse({'success': True, 'redirect': reverse('invoices:final_settlement_step', args=[instance.id, step_id]), 'totals': {
|
|
'final_amount': str(invoice.final_amount),
|
|
'paid_amount': str(invoice.paid_amount),
|
|
'remaining_amount': str(invoice.remaining_amount),
|
|
}})
|
|
|
|
|
|
@require_POST
|
|
@login_required
|
|
def approve_final_settlement(request, instance_id, step_id):
|
|
instance = get_object_or_404(ProcessInstance, id=instance_id)
|
|
step = get_object_or_404(instance.process.steps, id=step_id)
|
|
invoice = get_object_or_404(Invoice, process_instance=instance)
|
|
# Block approval if any remaining exists (positive or negative)
|
|
invoice.calculate_totals()
|
|
if invoice.remaining_amount != 0:
|
|
return JsonResponse({
|
|
'success': False,
|
|
'message': f"تا زمانی که مانده فاکتور صفر نشده امکان تایید نیست (مانده فعلی: {invoice.remaining_amount})"
|
|
})
|
|
# complete step
|
|
step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step=step)
|
|
step_instance.status = 'completed'
|
|
step_instance.completed_at = timezone.now()
|
|
step_instance.save()
|
|
# move next
|
|
next_step = instance.process.steps.filter(order__gt=step.order).first()
|
|
redirect_url = reverse('processes:request_list')
|
|
if next_step:
|
|
instance.current_step = next_step
|
|
instance.save()
|
|
redirect_url = reverse('processes:step_detail', args=[instance.id, next_step.id])
|
|
return JsonResponse({'success': True, 'message': 'تسویه حساب نهایی ثبت شد', 'redirect': redirect_url})
|