haikal/inventory/views.py

855 lines
29 KiB
Python

import logging
import json
from django.views.decorators.csrf import csrf_exempt
from vin import VIN
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.decorators import login_required
from django.http import JsonResponse
from django.shortcuts import render, get_object_or_404, redirect
from django.utils.translation import gettext_lazy as _
from django.db.models import Q
from django.views.generic import (
View,
ListView,
DetailView,
CreateView,
UpdateView,
DeleteView,
TemplateView,
)
from django.utils import timezone, translation
from django.conf import settings
from urllib.parse import urlparse, urlunparse
from django.forms import ChoiceField, ModelForm, RadioSelect
from django.urls import reverse, reverse_lazy
from django.contrib import messages
from django.db.models import Sum, F, Count
from .services import elm, fetch_colors, translate, decode_vin_pyvin, normalize_name
from . import models, tables, forms
from django_tables2.export.views import ExportMixin
logger = logging.getLogger(__name__)
logging.basicConfig(level=logging.INFO)
def switch_language(request):
language = request.GET.get("language", "en")
referer = request.META.get("HTTP_REFERER", "/")
parsed_url = urlparse(referer)
path_parts = parsed_url.path.split("/")
if path_parts[1] in dict(settings.LANGUAGES):
path_parts.pop(1)
new_path = "/".join(path_parts)
new_url = urlunparse(
(
parsed_url.scheme,
parsed_url.netloc,
new_path,
parsed_url.params,
parsed_url.query,
parsed_url.fragment,
)
)
if language in dict(settings.LANGUAGES):
logger.debug(f"Switching language to: {language}")
response = redirect(new_url)
response.set_cookie(settings.LANGUAGE_COOKIE_NAME, language)
translation.activate(language)
request.session[settings.LANGUAGE_COOKIE_NAME] = language
logger.debug(
f"Language switched to: {language}, Session: {request.session[settings.LANGUAGE_COOKIE_NAME]}"
)
return response
else:
logger.warning(f"Invalid language code: {language}")
return redirect("/")
class HomeView(LoginRequiredMixin, TemplateView):
template_name = "index.html"
def dispatch(self, request, *args, **kwargs):
if not hasattr(request.user, "dealer") or not request.user.is_authenticated:
messages.error(request, _("You are not associated with any dealer."))
return redirect("welcome")
return super().dispatch(request, *args, **kwargs)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
total_cars = models.Car.objects.count()
total_reservations = models.CarReservation.objects.filter(
reserved_until__gte=timezone.now()
).count()
stats = models.CarFinance.objects.aggregate(
total_cost_price=Sum("cost_price"),
total_selling_price=Sum("selling_price"),
)
total_cost_price = stats["total_cost_price"] or 0
total_selling_price = stats["total_selling_price"] or 0
total_profit = total_selling_price - total_cost_price
context["total_cars"] = total_cars
context["total_reservations"] = total_reservations
context["total_cost_price"] = total_cost_price
context["total_selling_price"] = total_selling_price
context["total_profit"] = total_profit
return context
class WelcomeView(TemplateView):
template_name = "welcome.html"
def dispatch(self, request, *args, **kwargs):
if hasattr(request.user, "dealer") and request.user.is_authenticated:
return redirect("landing_page")
return super().dispatch(request, *args, **kwargs)
class CarCreateView(LoginRequiredMixin, CreateView):
model = models.Car
form_class = forms.CarForm
template_name = "inventory/car_form.html"
success_url = reverse_lazy("inventory_stats")
def form_valid(self, form):
form.instance.dealer = self.request.user.dealer
form.save()
messages.success(self.request, "Car saved successfully.")
return super().form_valid(form)
class AjaxHandlerView(LoginRequiredMixin, View):
def get(self, request, *args, **kwargs):
action = request.GET.get("action")
handlers = {
"decode_vin": self.decode_vin,
"get_models": self.get_models,
"get_series": self.get_series,
"get_trims": self.get_trims,
"get_specifications": self.get_specifications,
}
handler = handlers.get(action)
if handler:
return handler(request)
else:
return JsonResponse({"error": "Invalid action"}, status=400)
def decode_vin(self, request):
vin_no = request.GET.get("vin_no")
if not vin_no or len(vin_no.strip()) != 17:
return JsonResponse(
{"success": False, "error": "Invalid VIN number provided."}, status=400
)
vin_no = vin_no.strip()
vin_data = {}
decoding_method = ""
decoding_methods = [("PYVIN", decode_vin_pyvin), ("VIN", VIN), ("ELM", elm)]
manufacturer_name = model_name_before = model_name = year_model = None
for method_name, decode_function in decoding_methods:
try:
vin_info = decode_function(vin_no)
if vin_info:
if method_name == "PYVIN":
manufacturer_name = vin_info.Make.strip()
model_name_before = vin_info.Model.strip()
year_model = vin_info.ModelYear
if not manufacturer_name or not year_model:
raise ValueError("PYVIN returned incomplete data.")
elif method_name == "VIN":
manufacturer_name = vin_info.make.strip()
model_name_before = vin_info.model.strip()
year_model = vin_info.model_year
if (
not manufacturer_name
or not model_name_before
or not year_model
):
raise ValueError("VIN returned incomplete data.")
elif method_name == "ELM":
elm_data = vin_info.get("data", {})
manufacturer_name = elm_data.get("maker", "").strip()
model_name_before = elm_data.get("model", "").strip()
year_model = elm_data.get("modelYear", "").strip()
if (
not manufacturer_name
or not model_name_before
or not year_model
):
raise ValueError("ELM returned incomplete data.")
model_name = normalize_name(model_name_before)
decoding_method = method_name
print(f"decoded by {method_name}")
break
else:
logger.warning(f"{method_name} returned no data for {vin_no}.")
except Exception as e:
logger.warning(
f"VIN decoding with {method_name} failed for {vin_no}: {e}"
)
if not manufacturer_name or not model_name or not year_model:
return JsonResponse(
{"success": False, "error": "VIN not found in all sources."}, status=404
)
logger.info(
f"VIN decoded using {decoding_method}: Make={manufacturer_name}, Model={model_name}, Year={year_model}"
)
car_make = models.CarMake.objects.filter(
name__icontains=manufacturer_name
).first()
if not car_make:
return JsonResponse(
{"success": False, "error": "Manufacturer not found in the database."},
status=404,
)
vin_data["make_id"] = car_make.id_car_make
vin_data["name"] = car_make.name
vin_data["arabic_name"] = car_make.arabic_name
car_model = models.CarModel.objects.filter(
id_car_make=car_make.id_car_make, name__icontains=model_name
).first()
if not car_model:
return JsonResponse(
{
"success": False,
"error": "Model not found for the given manufacturer.",
},
status=404,
)
vin_data["model_id"] = car_model.id_car_model
vin_data["year"] = year_model
return JsonResponse({"success": True, "data": vin_data})
def get_models(self, request):
make_id = request.GET.get("make_id")
car_models = models.CarModel.objects.filter(id_car_make=make_id).values(
"id_car_model", "name", "arabic_name"
)
return JsonResponse(list(car_models), safe=False)
def get_series(self, request):
model_id = request.GET.get("model_id")
series = models.CarSerie.objects.filter(
id_car_model=model_id,
).values("id_car_serie", "name", "arabic_name")
return JsonResponse(list(series), safe=False)
def get_trims(self, request):
serie_id = request.GET.get("serie_id")
trims = models.CarTrim.objects.filter(id_car_serie=serie_id).values(
"id_car_trim", "name", "arabic_name"
)
return JsonResponse(list(trims), safe=False)
def get_specifications(self, request):
trim_id = request.GET.get("trim_id")
car_spec_values = models.CarSpecificationValue.objects.filter(
id_car_trim=trim_id
)
lang = translation.get_language()
specs_by_parent = {}
for value in car_spec_values:
specification = value.id_car_specification
parent = specification.id_parent
parent_id = parent.id_car_specification if parent else 0
if lang == "ar":
parent_name = parent.arabic_name if parent else "Root"
else:
parent_name = parent.name if parent else "Root"
if parent_id not in specs_by_parent:
specs_by_parent[parent_id] = {
"parent_name": parent_name,
"specifications": [],
}
spec_data = {
"specification_id": specification.id_car_specification,
"s_name": specification.arabic_name
if lang == "ar"
else specification.name,
"s_value": value.value,
"s_unit": value.unit if value.unit else "",
"trim_name": value.id_car_trim.name,
}
specs_by_parent[parent_id]["specifications"].append(spec_data)
serialized_specs = [
{"parent_name": v["parent_name"], "specifications": v["specifications"]}
for v in specs_by_parent.values()
]
return JsonResponse(serialized_specs, safe=False)
class CarInventory(LoginRequiredMixin, ListView):
model = models.Car
home_label = _("inventory")
template_name = "inventory/car_inventory.html"
context_object_name = "cars"
paginate_by = 10
ordering = ["receiving_date"]
def get_queryset(self, *args, **kwargs):
query = self.request.GET.get("q")
make_id = self.kwargs["make_id"]
model_id = self.kwargs["model_id"]
trim_id = self.kwargs["trim_id"]
cars = models.Car.objects.filter(
dealer__user=self.request.user,
id_car_make=make_id,
id_car_model=model_id,
id_car_trim=trim_id,
).order_by("receiving_date")
if query:
cars = cars.filter(Q(vin__icontains=query))
return cars
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["query"] = self.request.GET.get("q", "")
context["make_id"] = self.kwargs["make_id"]
context["model_id"] = self.kwargs["model_id"]
context["trim_id"] = self.kwargs["trim_id"]
return context
@login_required
def inventory_stats_view(request):
dealer = request.user.dealer
# Annotate total cars by make, model, and trim
cars = (
models.Car.objects.filter(dealer=dealer)
.select_related("id_car_make", "id_car_model", "id_car_trim")
.annotate(
make_total=Count("id_car_make"),
model_total=Count("id_car_model"),
trim_total=Count("id_car_trim"),
)
)
# Prepare the nested structure
inventory = {}
for car in cars:
# Make Level
make = car.id_car_make
if make.id_car_make not in inventory:
inventory[make.id_car_make] = {
"make_id": make.id_car_make,
"make_name": make.get_local_name(),
"total_cars": 0,
"models": {},
}
inventory[make.id_car_make]["total_cars"] += 1
# Model Level
model = car.id_car_model
if model and model.id_car_model not in inventory[make.id_car_make]["models"]:
inventory[make.id_car_make]["models"][model.id_car_model] = {
"model_id": model.id_car_model,
"model_name": model.get_local_name(),
"total_cars": 0,
"trims": {},
}
inventory[make.id_car_make]["models"][model.id_car_model]["total_cars"] += 1
# Trim Level
trim = car.id_car_trim
if (
trim
and trim.id_car_trim
not in inventory[make.id_car_make]["models"][model.id_car_model]["trims"]
):
inventory[make.id_car_make]["models"][model.id_car_model]["trims"][
trim.id_car_trim
] = {"trim_id": trim.id_car_trim, "trim_name": trim.name, "total_cars": 0}
inventory[make.id_car_make]["models"][model.id_car_model]["trims"][
trim.id_car_trim
]["total_cars"] += 1
# Convert to a list for easier template rendering
result = {
"total_cars": cars.count(),
"makes": [
{
"make_id": make_data["make_id"],
"make_name": make_data["make_name"],
"total_cars": make_data["total_cars"],
"models": [
{
"model_id": model_data["model_id"],
"model_name": model_data["model_name"],
"total_cars": model_data["total_cars"],
"trims": list(model_data["trims"].values()),
}
for model_data in make_data["models"].values()
],
}
for make_data in inventory.values()
],
}
return render(request, "inventory/inventory_stats.html", {"inventory": result})
class CarDetailView(LoginRequiredMixin, DetailView):
model = models.Car
template_name = "inventory/car_detail.html"
context_object_name = "car"
class CarFinanceCreateView(LoginRequiredMixin, CreateView):
model = models.CarFinance
form_class = forms.CarFinanceForm
template_name = "inventory/car_finance_form.html"
def dispatch(self, request, *args, **kwargs):
self.car = get_object_or_404(models.Car, pk=self.kwargs["car_pk"])
return super().dispatch(request, *args, **kwargs)
def form_valid(self, form):
form.instance.car = self.car
messages.success(self.request, _("Car finance details saved successfully."))
return super().form_valid(form)
def get_success_url(self):
return reverse("car_detail", kwargs={"pk": self.car.pk})
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["car"] = self.car
return context
class CarFinanceUpdateView(LoginRequiredMixin, UpdateView):
model = models.CarFinance
form_class = forms.CarFinanceForm
template_name = "inventory/car_finance_form.html"
def form_valid(self, form):
messages.success(self.request, _("Car finance updated successfully."))
return super().form_valid(form)
def get_success_url(self):
return reverse("car_detail", kwargs={"pk": self.object.car.pk})
class CarUpdateView(LoginRequiredMixin, UpdateView):
model = models.Car
form_class = forms.CarUpdateForm
template_name = "inventory/car_edit.html"
def form_valid(self, form):
messages.success(self.request, _("Car updated successfully."))
return super().form_valid(form)
def get_success_url(self):
return reverse("car_detail", kwargs={"pk": self.object.pk})
class CarDeleteView(LoginRequiredMixin, DeleteView):
model = models.Car
template_name = "inventory/car_confirm_delete.html"
success_url = reverse_lazy("inventory_stats")
def delete(self, request, *args, **kwargs):
messages.success(request, _("Car deleted successfully."))
return super().delete(request, *args, **kwargs)
class CustomCardCreateView(LoginRequiredMixin, CreateView):
model = models.CustomCard
form_class = forms.CustomCardForm
template_name = "inventory/add_custom_card.html"
def form_valid(self, form):
car = get_object_or_404(models.Car, pk=self.kwargs["car_pk"])
form.instance.car = car
return super().form_valid(form)
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["car"] = get_object_or_404(models.Car, pk=self.kwargs["car_pk"])
return context
def get_success_url(self):
messages.success(self.request, _("Custom Card added successfully."))
return reverse_lazy("car_detail", kwargs={"pk": self.kwargs["car_pk"]})
class CarColorCreateView(LoginRequiredMixin, CreateView):
model = models.CarColors
template_name = "inventory/color_palette.html"
def dispatch(self, request, *args, **kwargs):
self.car = get_object_or_404(models.Car, pk=self.kwargs["car_pk"])
self.available_colors = self.fetch_available_colors()
return super().dispatch(request, *args, **kwargs)
def get_form_class(self):
class ColorPickerForm(ModelForm):
color = ChoiceField(
choices=self.get_color_choices(),
widget=RadioSelect(attrs={"class": "color-picker"}),
label=_("Select a Color"),
)
color_type = ChoiceField(
choices=models.CarColors.ColorType.choices,
widget=RadioSelect(attrs={"class": "color-type-picker"}),
label=_("Select Color Type"),
)
class Meta:
model = models.CarColors
fields = ["color", "color_type"]
return ColorPickerForm
def fetch_available_colors(self):
car_data = {
"make": self.car.id_car_make.name,
"model": self.car.id_car_model.name,
"year": str(self.car.year),
}
return fetch_colors(car_data) or []
def get_color_choices(self):
return [(color["rgb"], color["name"]) for color in self.available_colors]
def form_valid(self, form):
selected_rgb = form.cleaned_data["color"]
selected_name = next(
(
color["name"]
for color in self.available_colors
if color["rgb"] == selected_rgb
),
None,
)
if not selected_name:
messages.error(self.request, _("Invalid color selection."))
return self.form_invalid(form)
# Assign the car and selected color details
form.instance.car = self.car
form.instance.rgb = selected_rgb
form.instance.name = selected_name
form.instance.arabic_name = translate(selected_name)
form.instance.color_type = form.cleaned_data["color_type"]
messages.success(self.request, _("Color added successfully."))
return super().form_valid(form)
def get_success_url(self):
return reverse("car_detail", kwargs={"pk": self.car.pk})
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["car"] = self.car
return context
class CarColorUpdateView(LoginRequiredMixin, UpdateView):
model = forms.CarColors
template_name = "inventory/color_palette.html"
def dispatch(self, request, *args, **kwargs):
self.car = get_object_or_404(models.Car, pk=self.kwargs["car_pk"])
self.available_colors = self.fetch_available_colors()
return super().dispatch(request, *args, **kwargs)
def get_form_class(self):
class ColorPickerForm(ModelForm):
color = ChoiceField(
choices=self.get_color_choices(),
widget=RadioSelect(attrs={"class": "color-picker"}),
label=_("Select a Color"),
)
class Meta:
model = forms.CarColors
fields = ["color"]
return ColorPickerForm
def fetch_available_colors(self):
car_data = {
"make": self.car.id_car_make.name,
"model": self.car.id_car_model.name,
"year": str(self.car.year),
}
return fetch_colors(car_data) or []
def get_color_choices(self):
return [(color["rgb"], color["name"]) for color in self.available_colors]
def form_valid(self, form):
selected_rgb = form.cleaned_data["color"]
selected_name = next(
(
color["name"]
for color in self.available_colors
if color["rgb"] == selected_rgb
),
None,
)
if not selected_name:
messages.error(self.request, _("Invalid color selection."))
return self.form_invalid(form)
form.instance.rgb = selected_rgb
form.instance.name = selected_name
form.instance.arabic_name = translate(selected_name)
messages.success(self.request, _("Exterior color updated successfully."))
return super().form_valid(form)
def get_success_url(self):
return reverse("car_detail", kwargs={"pk": self.car.pk})
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["car"] = self.car
return context
@login_required()
def reserve_car_view(request, car_id):
if request.method == "POST":
car = get_object_or_404(models.Car, pk=car_id)
if car.is_reserved():
messages.error(request, _("This car is already reserved."))
return redirect("car_detail", pk=car.pk)
try:
reserved_until = timezone.now() + timezone.timedelta(hours=24)
models.CarReservation.objects.create(
car=car, reserved_by=request.user, reserved_until=reserved_until
)
messages.success(request, _("Car reserved successfully."))
except Exception as e:
messages.error(request, f"Error reserving car: {e}")
return redirect("car_detail", pk=car.pk)
return JsonResponse(
{"success": False, "message": "Invalid request method."}, status=400
)
@login_required
def manage_reservation(request, reservation_id):
reservation = get_object_or_404(
models.CarReservation, pk=reservation_id, reserved_by=request.user
)
if request.method == "POST":
action = request.POST.get("action")
if action == "renew":
reservation.reserved_until = timezone.now() + timezone.timedelta(hours=24)
reservation.save()
messages.success(request, _("Reservation renewed successfully."))
return redirect("car_detail", pk=reservation.car.pk)
elif action == "cancel":
reservation.delete()
messages.success(request, _("Reservation canceled successfully."))
return redirect("car_detail", pk=reservation.car.pk)
else:
return JsonResponse(
{"success": False, "message": _("Invalid action.")}, status=400
)
return JsonResponse(
{"success": False, "message": _("Invalid request method.")}, status=400
)
class DealerListView(LoginRequiredMixin, ListView):
model = models.Dealer
template_name = "dealer_list.html"
context_object_name = "dealers"
class DealerDetailView(LoginRequiredMixin, DetailView):
model = models.Dealer
template_name = "dealers/dealer_detail.html"
context_object_name = "dealer"
class DealerCreateView(LoginRequiredMixin, CreateView):
model = models.Dealer
form_class = forms.DealerForm
template_name = "dealer_form.html"
success_url = reverse_lazy("dealer_list")
def form_valid(self, form):
messages.success(self.request, _("Dealer created successfully."))
return super().form_valid(form)
class DealerUpdateView(LoginRequiredMixin, UpdateView):
model = models.Dealer
form_class = forms.DealerForm
template_name = "dealers/dealer_form.html"
success_url = reverse_lazy("dealer_detail")
def form_valid(self, form):
messages.success(self.request, _("Dealer updated successfully."))
return super().form_valid(form)
class DealerDeleteView(LoginRequiredMixin, DeleteView):
model = models.Dealer
template_name = "dealer_confirm_delete.html"
success_url = reverse_lazy("dealer_list")
def delete(self, request, *args, **kwargs):
messages.success(request, _("Dealer deleted successfully."))
return super().delete(request, *args, **kwargs)
class CustomerListView(LoginRequiredMixin, ListView):
model = models.Customer
home_label = _("customers")
context_object_name = "customers"
paginate_by = 10
template_name = "customers/customer_list.html"
def get_queryset(self):
query = self.request.GET.get("q")
customers = models.Customer.objects.filter(dealer__user=self.request.user)
if query:
customers = customers.filter(
Q(national_id__icontains=query)
| Q(first_name__icontains=query)
| Q(last_name__icontains=query)
)
return customers
def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
context["query"] = self.request.GET.get("q", "")
return context
class CustomerDetailView(LoginRequiredMixin, DetailView):
model = models.Customer
template_name = "customers/view_customer.html"
context_object_name = "customer"
class CustomerCreateView(LoginRequiredMixin, CreateView):
model = models.Customer
form_class = forms.CustomerForm
template_name = "customers/customer_form.html"
success_url = reverse_lazy("customer_list")
def form_valid(self, form):
if form.is_valid():
form.instance.dealer = self.request.user.dealer
form.save()
messages.success(self.request, _("Customer created successfully."))
return super().form_valid(form)
else:
return form.errors
class CustomerUpdateView(LoginRequiredMixin, UpdateView):
model = models.Customer
form_class = forms.CustomerForm
template_name = "customers/customer_form.html"
success_url = reverse_lazy("customer_list")
def form_valid(self, form):
if form.is_valid():
form.instance.dealer = self.request.user.dealer
form.save()
messages.success(self.request, _("Customer updated successfully."))
return super().form_valid(form)
else:
return form.errors
@login_required
def delete_customer(request, pk):
customer = get_object_or_404(models.Customer, pk=pk)
customer.delete()
<<<<<<< HEAD
messages.success(request, _('Customer deleted successfully.'))
return redirect('customer_list')
class VendorListView(LoginRequiredMixin, ListView):
model = models.Vendor
context_object_name = 'vendors'
paginate_by = 10
template_name = "vendors/vendors_list.html"
class VendorDetailView(LoginRequiredMixin, DetailView):
model = models.Vendor
template_name = "vendors/view_vendor.html"
class VendorCreateView(LoginRequiredMixin, CreateView):
model = models.Vendor
form_class = forms.VendorForm
template_name = 'vendors/vendor_form.html'
success_url = reverse_lazy('vendor_list')
def form_valid(self, form):
if form.is_valid():
form.instance.dealer = self.request.user.dealer
form.save()
messages.success(self.request, _('Vendor created successfully.'))
return super().form_valid(form)
else:
return form.errors
class VendorUpdateView(LoginRequiredMixin, UpdateView):
model = models.Vendor
form_class = forms.VendorForm
template_name = 'vendors/vendor_form.html'
success_url = reverse_lazy('vendor_list')
def form_valid(self, form):
if form.is_valid():
form.instance.dealer = self.request.user.dealer
form.save()
messages.success(self.request, _('Vendor updated successfully.'))
return super().form_valid(form)
else:
return form.errors
@login_required
def delete_vendor(request, pk):
vendor = get_object_or_404(models.Vendor, pk=pk)
vendor.delete()
messages.success(request, _('Vendor deleted successfully.'))
return redirect('vendor_list')
=======
messages.success(request, _("Customer deleted successfully."))
return redirect("customer_list")
>>>>>>> c96865f (add search to select fields, redirect logged in user to landingpage if they are authenticated)