IdHub/idhub/user/views.py

import logging

from django.utils.translation import gettext_lazy as _
from django.views.generic.edit import (
    UpdateView,
    CreateView,
    DeleteView,
    FormView
)
from django.views.generic.base import TemplateView
from django.shortcuts import get_object_or_404, redirect
from django.urls import reverse_lazy
from django.http import HttpResponse
from django.contrib import messages
from utils.apiregiter import iota
from idhub.user.forms import ProfileForm, RequestCredentialForm, CredentialPresentationForm
from idhub.mixins import UserView
from idhub.models import DID, VerificableCredential, Event


class MyProfile(UserView):
    title = _("My profile")
    section = "MyProfile"


class MyWallet(UserView):
    title = _("My Wallet")
    section = "MyWallet"


class DashboardView(UserView, TemplateView):
    template_name = "idhub/user/dashboard.html"
    title = _('Dashboard')
    subtitle = _('Success')
    icon = 'bi bi-bell'
    section = "Home"


class ProfileView(MyProfile, UpdateView):
    template_name = "idhub/user/profile.html"
    subtitle = _('My personal Data')
    icon = 'bi bi-person'
    from_class = ProfileForm
    fields = ('first_name', 'last_name', 'email')
    success_url = reverse_lazy('idhub:user_profile')

    def get_object(self):
        return self.request.user


class RolesView(MyProfile, TemplateView):
    template_name = "idhub/user/roles.html"
    subtitle = _('My roles')
    icon = 'fa-brands fa-critical-role'


class GDPRView(MyProfile, TemplateView):
    template_name = "idhub/user/gdpr.html"
    subtitle = _('GDPR info')
    icon = 'bi bi-file-earmark-medical'


class CredentialsView(MyWallet, TemplateView):
    template_name = "idhub/user/credentials.html"
    subtitle = _('Credentials')
    icon = 'bi bi-patch-check-fill'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context.update({
            'credentials': VerificableCredential.objects,
        })
        return context


class CredentialView(MyWallet, TemplateView):
    template_name = "idhub/user/credential.html"
    subtitle = _('Credential')
    icon = 'bi bi-patch-check-fill'

    def get(self, request, *args, **kwargs):
        self.pk = kwargs['pk']
        self.object = get_object_or_404(
            VerificableCredential,
            pk=self.pk,
            user=self.request.user
        )
        return super().get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context.update({
            'object': self.object,
        })
        return context


class CredentialJsonView(MyWallet, TemplateView):

    def get(self, request, *args, **kwargs):
        pk = kwargs['pk']
        self.object = get_object_or_404(
            VerificableCredential,
            pk=pk,
            user=self.request.user
        )
        response = HttpResponse(self.object.data, content_type="application/json")
        response['Content-Disposition'] = 'attachment; filename={}'.format("credential.json")
        return response


class CredentialsRequestView(MyWallet, FormView):
    template_name = "idhub/user/credentials_request.html"
    subtitle = _('Credentials request')
    icon = 'bi bi-patch-check-fill'
    form_class = RequestCredentialForm
    success_url = reverse_lazy('idhub:user_credentials')

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['user'] = self.request.user
        return kwargs
    
    def form_valid(self, form):
        cred = form.save()
        if cred:
            messages.success(self.request, _("The credential was required successfully!"))
            Event.set_EV_CREDENTIAL_ISSUED_FOR_USER(cred)
            Event.set_EV_CREDENTIAL_ISSUED(cred)
        else:
            messages.error(self.request, _("Not exists the credential!"))
        return super().form_valid(form)


class CredentialsPresentationView(MyWallet, FormView):
    template_name = "idhub/user/credentials_presentation.html"
    subtitle = _('Credentials Presentation')
    icon = 'bi bi-patch-check-fill'
    form_class = CredentialPresentationForm
    success_url = reverse_lazy('idhub:user_credentials')

    def get_form_kwargs(self):
        kwargs = super().get_form_kwargs()
        kwargs['user'] = self.request.user
        return kwargs
    
    def form_valid(self, form):
        cred = form.save()
        if cred:
            Event.set_EV_CREDENTIAL_PRESENTED_BY_USER(cred, form.org)
            Event.set_EV_CREDENTIAL_PRESENTED(cred, form.org)
            messages.success(self.request, _("The credential was presented successfully!"))
        else:
            messages.error(self.request, _("Error sending credential!"))
        return super().form_valid(form)

    
class DidsView(MyWallet, TemplateView):
    template_name = "idhub/user/dids.html"
    subtitle = _('Identities (DID)')
    icon = 'bi bi-patch-check-fill'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context.update({
            'dids': self.request.user.dids,
        })
        return context


class DidRegisterView(MyWallet, CreateView):
    template_name = "idhub/user/did_register.html"
    subtitle = _('Add a new Identities (DID)')
    icon = 'bi bi-patch-check-fill'
    wallet = True
    model = DID
    fields = ('label',)
    success_url = reverse_lazy('idhub:user_dids')
    object = None

    def form_valid(self, form):
        form.instance.user = self.request.user
        form.instance.did = iota.issue_did()
        form.save()
        messages.success(self.request, _('DID created successfully'))

        Event.set_EV_DID_CREATED(form.instance)
        Event.set_EV_DID_CREATED_BY_USER(form.instance)
        return super().form_valid(form)


class DidEditView(MyWallet, UpdateView):
    template_name = "idhub/user/did_register.html"
    subtitle = _('Identities (DID)')
    icon = 'bi bi-patch-check-fill'
    wallet = True
    model = DID
    fields = ('label',)
    success_url = reverse_lazy('idhub:user_dids')

    def get(self, request, *args, **kwargs):
        self.pk = kwargs['pk']
        self.object = get_object_or_404(self.model, pk=self.pk)
        return super().get(request, *args, **kwargs)

    def form_valid(self, form):
        user = form.save()
        messages.success(self.request, _('DID updated successfully'))
        return super().form_valid(form)


class DidDeleteView(MyWallet, DeleteView):
    subtitle = _('Identities (DID)')
    icon = 'bi bi-patch-check-fill'
    wallet = True
    model = DID
    success_url = reverse_lazy('idhub:user_dids')

    def get(self, request, *args, **kwargs):
        self.pk = kwargs['pk']
        self.object = get_object_or_404(self.model, pk=self.pk)
        Event.set_EV_DID_DELETED(self.object)
        self.object.delete()
        messages.success(self.request, _('DID delete successfully'))

        return redirect(self.success_url)