226 lines
12 KiB
Python
226 lines
12 KiB
Python
from django.shortcuts import render, get_object_or_404, redirect
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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.urls import reverse
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from django.utils import timezone
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from django.template import Template, Context
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from django.utils.safestring import mark_safe
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from django.db import IntegrityError
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from processes.models import ProcessInstance, StepInstance
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from invoices.models import Invoice
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from installations.models import InstallationReport
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from .models import CertificateTemplate, CertificateInstance
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from common.consts import UserRoles
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from _helpers.jalali import Gregorian
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from processes.utils import get_scoped_instance_or_404
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def _to_jalali(date_obj):
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try:
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g = Gregorian(date_obj)
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y, m, d = g.persian_tuple()
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return f"{y}/{m:02d}/{d:02d}"
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except Exception:
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return ''
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def _render_template(template: CertificateTemplate, instance: ProcessInstance):
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well = instance.well
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rep = instance.representative
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latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
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individual = True if rep.profile and rep.profile.user_type == 'individual' else False
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customer_company_name = rep.profile.company_name if rep.profile and rep.profile.user_type == 'legal' else None
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city = template.company.broker.affairs.county.city.name if template.company and template.company.broker and template.company.broker.affairs and template.company.broker.affairs.county and template.company.broker.affairs.county.city else None
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county = template.company.broker.affairs.county.name if template.company and template.company.broker and template.company.broker.affairs and template.company.broker.affairs.county else None
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ctx = {
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'today_jalali': mark_safe(f"<span class=\"fw-bold\">{_to_jalali(timezone.now().date())}</span>"),
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'request_code': mark_safe(f"<span class=\"fw-bold\">{instance.code}</span>"),
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'company_name': mark_safe(f"<span class=\"fw-bold\">{(template.company.name if template.company else '') or ''}</span>"),
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'customer_full_name': mark_safe(f"<span class=\"fw-bold\">{rep.get_full_name() if rep else ''}</span>"),
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'water_subscription_number': mark_safe(f"<span class=\"fw-bold\">{getattr(well, 'water_subscription_number', '') or ''}</span>"),
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'address': mark_safe(f"<span class=\"fw-bold\">{getattr(well, 'county', '') or ''}</span>"),
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'visit_date_jalali': mark_safe(f"<span class=\"fw-bold\">{_to_jalali(getattr(latest_report, 'visited_date', None)) if latest_report else ''}</span>"),
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'city': mark_safe(f"<span class=\"fw-bold\">{city or ''}</span>"),
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'county': mark_safe(f"<span class=\"fw-bold\">{county or ''}</span>"),
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'customer_company_name': mark_safe(f"<span class=\"fw-bold\">{customer_company_name or ''}</span>"),
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'individual': individual,
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}
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# Render title using Django template engine
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title_template = Template(template.title or '')
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title = title_template.render(Context(ctx))
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# Render body using Django template engine
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body_template = Template(template.body or '')
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body = body_template.render(Context(ctx))
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return title, body
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@login_required
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def certificate_step(request, instance_id, step_id):
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instance = get_scoped_instance_or_404(request, instance_id)
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step = get_object_or_404(instance.process.steps, id=step_id)
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# Ensure all previous steps are completed and invoice settled
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prior_steps = instance.process.steps.filter(order__lt=instance.current_step.order if instance.current_step else 9999)
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incomplete = StepInstance.objects.filter(process_instance=instance, step__in=prior_steps).exclude(status='completed').exists()
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previous_step = instance.process.steps.filter(order__lt=instance.current_step.order).last() if instance.current_step else None
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prev_si = StepInstance.objects.filter(process_instance=instance, step=previous_step).first() if previous_step else None
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if incomplete and not prev_si.status == 'approved':
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messages.error(request, 'ابتدا همه مراحل قبلی را تکمیل کنید')
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return redirect('processes:request_list')
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inv = Invoice.objects.filter(process_instance=instance).first()
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if inv:
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if prev_si and not prev_si.status == 'approved':
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inv.calculate_totals()
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if inv.get_remaining_amount() != 0:
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messages.error(request, 'مانده فاکتور باید صفر باشد')
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return redirect('processes:request_list')
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template = CertificateTemplate.objects.filter(is_active=True).order_by('-created').first()
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if not template:
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return render(request, 'certificates/missing.html', {})
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title, body = _render_template(template, instance)
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cert, _ = CertificateInstance.objects.get_or_create(
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process_instance=instance,
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defaults={'template': template, 'rendered_title': title, 'rendered_body': body}
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)
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# keep rendered up-to-date
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cert.template = template
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cert.rendered_title = title
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cert.rendered_body = body
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cert.save()
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previous_step = instance.process.steps.filter(order__lt=instance.current_step.order).last() if instance.current_step else None
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next_step = instance.process.steps.filter(order__gt=instance.current_step.order).first() if instance.current_step else None
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if request.method == 'POST':
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# Only broker can approve and finish certificate step
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try:
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if not (hasattr(request.user, 'profile') and request.user.profile.has_role(UserRoles.BROKER)):
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messages.error(request, 'شما مجوز تایید این مرحله را ندارید')
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return redirect('processes:step_detail', instance_id=instance.id, step_id=step.id)
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except Exception:
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messages.error(request, 'شما مجوز تایید این مرحله را ندارید')
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return redirect('processes:step_detail', instance_id=instance.id, step_id=step.id)
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# Safety check: ensure ALL previous steps are completed before approval
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try:
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prev_steps_qs = instance.process.steps.filter(order__lt=step.order)
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has_incomplete = StepInstance.objects.filter(process_instance=instance, step__in=prev_steps_qs).exclude(status='completed').exists()
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if has_incomplete:
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messages.error(request, 'ابتدا همه مراحل قبلی را تکمیل کنید')
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return redirect('processes:step_detail', instance_id=instance.id, step_id=step.id)
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except Exception:
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messages.error(request, 'خطا در بررسی مراحل قبلی')
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return redirect('processes:step_detail', instance_id=instance.id, step_id=step.id)
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cert.approved = True
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cert.approved_at = timezone.now()
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cert.save()
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step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step_id=step_id)
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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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if next_step:
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instance.current_step = next_step
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instance.save()
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return redirect('processes:step_detail', instance_id=instance.id, step_id=next_step.id)
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# Mark the whole process instance as completed on the last step
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instance.status = 'completed'
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instance.save()
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return redirect('processes:instance_summary', instance_id=instance.id)
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# latest installation report for details
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latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
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return render(request, 'certificates/step.html', {
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'instance': instance,
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'template': template,
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'cert': cert,
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'previous_step': previous_step,
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'next_step': next_step,
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'step': step,
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'latest_report': latest_report,
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})
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@login_required
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def certificate_print(request, instance_id):
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instance = get_scoped_instance_or_404(request, instance_id)
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cert = CertificateInstance.objects.filter(process_instance=instance).order_by('-created').first()
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latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
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if request.method == 'POST':
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# Save/update hologram code then print
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code = (request.POST.get('hologram_code') or '').strip()
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if not code:
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messages.error(request, 'کد یکتای هولوگرام الزامی است')
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# Find certificate step to redirect back
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certificate_step = instance.process.steps.filter(order=9).first()
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if certificate_step and instance.current_step:
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return redirect('processes:step_detail', instance_id=instance.id, step_id=certificate_step.id)
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return redirect('processes:instance_summary', instance_id=instance.id)
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try:
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if cert:
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# Check if hologram code is already used by another certificate
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if CertificateInstance.objects.filter(hologram_code=code).exclude(id=cert.id).exists():
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messages.error(request, 'این کد هولوگرام قبلاً استفاده شده است. لطفاً کد دیگری وارد کنید')
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# Find certificate step to redirect back
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certificate_step = instance.process.steps.filter(order=9).first()
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if certificate_step and instance.current_step:
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return redirect('processes:step_detail', instance_id=instance.id, step_id=certificate_step.id)
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return redirect('processes:instance_summary', instance_id=instance.id)
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cert.hologram_code = code
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cert.save(update_fields=['hologram_code'])
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else:
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# Check if hologram code is already used
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if CertificateInstance.objects.filter(hologram_code=code).exists():
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messages.error(request, 'این کد هولوگرام قبلاً استفاده شده است. لطفاً کد دیگری وارد کنید')
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# Find certificate step to redirect back
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certificate_step = instance.process.steps.filter(order=9).first()
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if certificate_step and instance.current_step:
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return redirect('processes:step_detail', instance_id=instance.id, step_id=certificate_step.id)
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return redirect('processes:instance_summary', instance_id=instance.id)
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template = CertificateTemplate.objects.filter(is_active=True).order_by('-created').first()
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if template:
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title, body = _render_template(template, instance)
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cert = CertificateInstance.objects.create(
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process_instance=instance,
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template=template,
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rendered_title=title,
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rendered_body=body,
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hologram_code=code
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)
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except IntegrityError:
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messages.error(request, 'این کد هولوگرام قبلاً استفاده شده است. لطفاً کد دیگری وارد کنید')
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# Find certificate step to redirect back
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certificate_step = instance.process.steps.filter(order=9).first()
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if certificate_step and instance.current_step:
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return redirect('processes:step_detail', instance_id=instance.id, step_id=certificate_step.id)
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return redirect('processes:instance_summary', instance_id=instance.id)
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# proceed to rendering page after saving code
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return render(request, 'certificates/print.html', {
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'instance': instance,
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'cert': cert,
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'template': cert.template if cert else None,
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'latest_report': latest_report,
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})
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template = cert.template if cert else None
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return render(request, 'certificates/print.html', {
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'instance': instance,
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'cert': cert,
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'template': template,
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'latest_report': latest_report,
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})
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