from django.shortcuts import render, get_object_or_404, redirect from django.urls import reverse from django.utils import timezone import json from django.contrib.auth.decorators import login_required from django.contrib import messages from django.http import JsonResponse from django.views.decorators.http import require_POST, require_GET from django.db import transaction from django.contrib.auth import get_user_model from .models import Process, ProcessInstance, StepInstance from wells.models import Well from accounts.models import Profile from .forms import ProcessInstanceForm from accounts.forms import CustomerForm from wells.forms import WellForm from wells.models import WaterMeterManufacturer @login_required def process_list(request): """نمایش لیست فرآیندهای فعال""" processes = Process.objects.filter(is_active=True) return render(request, 'processes/process_list.html', { 'processes': processes }) @login_required def process_detail(request, process_id): """نمایش جزئیات فرآیند""" process = get_object_or_404(Process, id=process_id, is_active=True) return render(request, 'processes/process_detail.html', { 'process': process }) @login_required def request_list(request): """نمایش لیست درخواست‌ها با جدول و مدال ایجاد""" instances = ProcessInstance.objects.select_related('well', 'representative', 'requester').filter(is_deleted=False).order_by('-created') processes = Process.objects.filter(is_active=True) manufacturers = WaterMeterManufacturer.objects.all().order_by('name') return render(request, 'processes/request_list.html', { 'instances': instances, 'customer_form': CustomerForm(), 'well_form': WellForm(), 'processes': processes, 'manufacturers': manufacturers }) @require_GET @login_required def lookup_well_by_subscription(request): sub = request.GET.get('water_subscription_number', '').strip() if not sub: return JsonResponse({'ok': False, 'error': 'شماره اشتراک الزامی است'}, status=400) try: well = Well.objects.select_related('representative', 'water_meter_manufacturer').get(water_subscription_number=sub) data = { 'id': well.id, 'water_subscription_number': well.water_subscription_number, 'electricity_subscription_number': well.electricity_subscription_number, 'water_meter_serial_number': well.water_meter_serial_number, 'water_meter_old_serial_number': well.water_meter_old_serial_number, 'water_meter_manufacturer': well.water_meter_manufacturer.id if well.water_meter_manufacturer else None, 'utm_x': str(well.utm_x) if well.utm_x is not None else None, 'utm_y': str(well.utm_y) if well.utm_y is not None else None, 'utm_zone': well.utm_zone, 'utm_hemisphere': well.utm_hemisphere, 'well_power': well.well_power, 'reference_letter_number': well.reference_letter_number, 'reference_letter_date': well.reference_letter_date.isoformat() if well.reference_letter_date else None, 'representative_letter_file_url': well.representative_letter_file.url if well.representative_letter_file else '', 'representative_letter_file_name': well.representative_letter_file.name.split('/')[-1] if well.representative_letter_file else '', 'representative_id': well.representative.id if well.representative else None, 'representative_full_name': well.representative.get_full_name() if well.representative else None, } return JsonResponse({'ok': True, 'exists': True, 'well': data}) except Well.DoesNotExist: return JsonResponse({'ok': True, 'exists': False}) @require_GET @login_required def lookup_representative_by_national_code(request): national_code = request.GET.get('national_code', '').strip() if not national_code: return JsonResponse({'ok': False, 'error': 'کد ملی الزامی است'}, status=400) profile = Profile.objects.select_related('user').filter(national_code=national_code).first() if not profile: return JsonResponse({'ok': True, 'exists': False}) user = profile.user return JsonResponse({ 'ok': True, 'exists': True, 'user': { 'id': user.id, 'username': user.username, 'first_name': user.first_name, 'last_name': user.last_name, 'full_name': user.get_full_name(), 'profile': { 'national_code': profile.national_code, 'phone_number_1': profile.phone_number_1, 'phone_number_2': profile.phone_number_2, 'card_number': profile.card_number, 'account_number': profile.account_number, 'address': profile.address, } } }) @require_POST @login_required @transaction.atomic def create_request_with_entities(request): """ایجاد/به‌روزرسانی چاه و نماینده و سپس ایجاد درخواست""" User = get_user_model() process_id = request.POST.get('process') process = Process.objects.get(id=process_id) description = request.POST.get('description', '') # Well fields water_subscription_number = request.POST.get('water_subscription_number') well_id = request.POST.get('well_id') # optional if existing # Representative fields representative_id = request.POST.get('representative_id') # Prefer plain CustomerForm keys; fallback to representative_* keys representative_national_code = request.POST.get('national_code') or request.POST.get('representative_national_code') representative_first_name = request.POST.get('first_name') or request.POST.get('representative_first_name') representative_last_name = request.POST.get('last_name') or request.POST.get('representative_last_name') representative_username = request.POST.get('username') or request.POST.get('representative_username') representative_phone_number_1 = request.POST.get('phone_number_1') or request.POST.get('representative_phone_number_1') representative_phone_number_2 = request.POST.get('phone_number_2') or request.POST.get('representative_phone_number_2') representative_card_number = request.POST.get('card_number') or request.POST.get('representative_card_number') representative_account_number = request.POST.get('account_number') or request.POST.get('representative_account_number') representative_address = request.POST.get('address') or request.POST.get('representative_address') if not process_id: return JsonResponse({'ok': False, 'errors': {'request': {'process': ['فرآیند الزامی است']}}}, status=400) if not water_subscription_number: return JsonResponse({'ok': False, 'errors': {'well': {'water_subscription_number': ['شماره اشتراک آب الزامی است']}}}, status=400) if not representative_id and not representative_national_code: return JsonResponse({'ok': False, 'errors': {'customer': {'national_code': ['کد ملی نماینده را وارد کنید یا دکمه بررسی/افزودن نماینده را بزنید']}}}, status=400) representative_user = None representative_profile = None if representative_id: representative_profile = Profile.objects.select_related('user').filter(user_id=representative_id).first() if not representative_profile: return JsonResponse({'ok': False, 'errors': {'customer': {'__all__': ['نماینده انتخاب‌شده یافت نشد']}}}, status=400) representative_user = representative_profile.user # Optionally update if fields provided changed = False if representative_first_name: representative_user.first_name = representative_first_name changed = True if representative_last_name: representative_user.last_name = representative_last_name changed = True if representative_username: representative_user.username = representative_username changed = True if changed: representative_user.save() if representative_national_code: representative_profile.national_code = representative_national_code if representative_phone_number_1 is not None: representative_profile.phone_number_1 = representative_phone_number_1 if representative_phone_number_2 is not None: representative_profile.phone_number_2 = representative_phone_number_2 if representative_card_number is not None: representative_profile.card_number = representative_card_number if representative_account_number is not None: representative_profile.account_number = representative_account_number if representative_address is not None: representative_profile.address = representative_address representative_profile.save() else: # Use CustomerForm to validate/create/update representative profile by national code profile_instance = None if representative_national_code: profile_instance = Profile.objects.filter(national_code=representative_national_code).first() customer_data = { 'first_name': representative_first_name or '', 'last_name': representative_last_name or '', 'phone_number_1': representative_phone_number_1 or '', 'phone_number_2': representative_phone_number_2 or '', 'national_code': representative_national_code or '', 'address': representative_address or '', 'card_number': representative_card_number or '', 'account_number': representative_account_number or '', } customer_form = CustomerForm(customer_data, instance=profile_instance) customer_form.request = request if not customer_form.is_valid(): return JsonResponse({'ok': False, 'errors': {'customer': customer_form.errors}}, status=400) representative_profile = customer_form.save() representative_user = representative_profile.user # Resolve/create/update well # Build WellForm data from POST well = None if well_id: well = Well.objects.filter(id=well_id).first() if not well: return JsonResponse({'ok': False, 'error': 'شناسه چاه نامعتبر است'}, status=400) else: existing = Well.objects.filter(water_subscription_number=water_subscription_number).first() if existing: well = existing well_data = request.POST.copy() # Ensure representative set from created/selected user if not provided if representative_user and not well_data.get('representative'): well_data['representative'] = str(representative_user.id) if not well_data.get('water_subscription_number'): well_data['water_subscription_number'] = water_subscription_number # Preserve existing values on partial updates if well: for field_name in WellForm.Meta.fields: if field_name in ('representative_letter_file',): # File field handled via request.FILES; skip if not provided continue incoming = well_data.get(field_name, None) if incoming is None or incoming == '': current_value = getattr(well, field_name, None) if current_value is None: continue # Convert FK to id if hasattr(current_value, 'pk'): well_data[field_name] = str(current_value.pk) else: # Convert dates/decimals/others to string try: well_data[field_name] = current_value.isoformat() # dates except AttributeError: well_data[field_name] = str(current_value) well_form = WellForm(well_data, request.FILES, instance=well) if not well_form.is_valid(): return JsonResponse({'ok': False, 'errors': {'well': well_form.errors}}, status=400) # Save with ability to remove existing file well = well_form.save(commit=False) try: if request.POST.get('remove_file') == 'true' and getattr(well, 'representative_letter_file', None): well.representative_letter_file.delete(save=False) well.representative_letter_file = None except Exception: pass well.save() # Auto fill geo ownership from current user profile if available current_profile = getattr(request.user, 'profile', None) if current_profile: if hasattr(well, 'affairs'): well.affairs = current_profile.affairs if hasattr(well, 'county'): well.county = current_profile.county if hasattr(well, 'broker'): well.broker = current_profile.broker well.save() # Create request instance instance = ProcessInstance.objects.create( process=process, description=description, well=well, representative=representative_user, requester=request.user, status='pending', priority='medium', ) # ایجاد نمونه‌های مرحله بر اساس مراحل فرآیند و تنظیم مرحله فعلی for step in process.steps.all().order_by('order'): StepInstance.objects.create( process_instance=instance, step=step ) first_step = process.steps.all().order_by('order').first() if first_step: instance.current_step = first_step instance.status = 'in_progress' instance.save() redirect_url = reverse('processes:instance_steps', args=[instance.id]) return JsonResponse({'ok': True, 'instance_id': instance.id, 'redirect': redirect_url}) @require_POST @login_required def delete_request(request, instance_id): """حذف درخواست""" instance = get_object_or_404(ProcessInstance, id=instance_id) code = instance.code instance.delete() return JsonResponse({ 'success': True, 'message': f'درخواست {code} با موفقیت حذف شد' }) @login_required def start_process(request, process_id): """شروع فرآیند جدید""" process = get_object_or_404(Process, id=process_id, is_active=True) if request.method == 'POST': form = ProcessInstanceForm(request.POST) if form.is_valid(): instance = form.save(commit=False) instance.process = process instance.requester = request.user instance.save() # ایجاد نمونه‌های مرحله for step in process.steps.all(): StepInstance.objects.create( process_instance=instance, step=step ) # تنظیم مرحله اول به عنوان مرحله فعلی first_step = process.steps.first() if first_step: instance.current_step = first_step instance.status = 'in_progress' instance.save() messages.success(request, f'فرآیند {process.name} با موفقیت شروع شد.') return redirect('processes:instance_detail', instance_id=instance.id) else: form = ProcessInstanceForm() return render(request, 'processes/start_process.html', { 'process': process, 'form': form }) @login_required def instance_detail(request, instance_id): """نمایش جزئیات نمونه فرآیند""" instance = get_object_or_404(ProcessInstance, id=instance_id) return render(request, 'processes/instance_detail.html', { 'instance': instance }) @login_required def step_detail(request, instance_id, step_id): """نمایش جزئیات مرحله خاص""" 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) # بررسی دسترسی به مرحله 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') # هدایت به view مناسب بر اساس نوع مرحله if step.order == 1: # مرحله اول - انتخاب اقلام return redirect('invoices:quote_step', instance_id=instance.id, step_id=step.id) elif step.order == 2: # مرحله دوم - صدور پیش‌فاکتور return redirect('invoices:quote_preview_step', instance_id=instance.id, step_id=step.id) elif step.order == 3: # مرحله سوم - ثبت فیش‌های واریزی return redirect('invoices:quote_payment_step', instance_id=instance.id, step_id=step.id) # برای سایر مراحل، template عمومی نمایش داده می‌شود step_instance = instance.step_instances.filter(step=step).first() # Navigation logic 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, 'processes/step_detail.html', { 'instance': instance, 'step': step, 'step_instance': step_instance, 'previous_step': previous_step, 'next_step': next_step, }) @login_required def instance_steps(request, instance_id): """هدایت به مرحله فعلی instance""" instance = get_object_or_404(ProcessInstance, id=instance_id) if not instance.current_step: # اگر مرحله فعلی تعریف نشده، به اولین مرحله برو first_step = instance.process.steps.first() if first_step: instance.current_step = first_step instance.save() return redirect('processes:step_detail', instance_id=instance.id, step_id=first_step.id) else: messages.error(request, 'هیچ مرحله‌ای برای این فرآیند تعریف نشده است.') return redirect('processes:request_list') return redirect('processes:step_detail', instance_id=instance.id, step_id=instance.current_step.id) @login_required def my_processes(request): """نمایش فرآیندهای کاربر""" my_instances = ProcessInstance.objects.filter(requester=request.user) assigned_steps = StepInstance.objects.filter(assigned_to=request.user, status='in_progress') return render(request, 'processes/my_processes.html', { 'my_instances': my_instances, 'assigned_steps': assigned_steps })