From ce8d4bd228c85749a6557145f4ac10aa090fe1bd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=AD=C3=B0ir=20Valberg=20Gu=C3=B0mundsson?=
 <valberg@orn.li>
Date: Mon, 15 Jul 2024 10:05:53 +0200
Subject: [PATCH] WIP.

---
 ...erviceaccess_subscription_data_and_more.py | 25 +++++++
 src/membership/models.py                      | 20 ++++--
 src/services/registry.py                      | 20 +++---
 src/services/services.py                      | 22 ++++++-
 .../templates/services/service_subscribe.html |  3 +-
 src/services/views.py                         | 66 +++++++++++++------
 6 files changed, 115 insertions(+), 41 deletions(-)
 create mode 100644 src/membership/migrations/0007_serviceaccess_subscription_data_and_more.py

diff --git a/src/membership/migrations/0007_serviceaccess_subscription_data_and_more.py b/src/membership/migrations/0007_serviceaccess_subscription_data_and_more.py
new file mode 100644
index 0000000..7556201
--- /dev/null
+++ b/src/membership/migrations/0007_serviceaccess_subscription_data_and_more.py
@@ -0,0 +1,25 @@
+# Generated by Django 5.0.6 on 2024-07-15 07:30
+
+import django_registries.registry
+import services.registry
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('membership', '0006_serviceaccess_serviceaccess_unique_user_service'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='serviceaccess',
+            name='subscription_data',
+            field=models.JSONField(blank=True, null=True, verbose_name='subscription data'),
+        ),
+        migrations.AlterField(
+            model_name='serviceaccess',
+            name='service',
+            field=django_registries.registry.ChoicesField(choices=[('hedgedoc', 'hedgedoc'), ('mail', 'mail'), ('mastodon', 'mastodon'), ('matrix', 'matrix'), ('nextcloud', 'nextcloud'), ('rallly', 'rallly')], registry=services.registry.ServiceRegistry, verbose_name='service'),
+        ),
+    ]
diff --git a/src/membership/models.py b/src/membership/models.py
index d499ef9..71cb1cc 100644
--- a/src/membership/models.py
+++ b/src/membership/models.py
@@ -1,6 +1,5 @@
 """Models for the membership app."""
 
-from typing import ClassVar
 from typing import Self
 
 from django.contrib.auth.models import User
@@ -10,7 +9,6 @@ from django.contrib.postgres.fields import RangeOperators
 from django.db import models
 from django.utils import timezone
 from django.utils.translation import gettext as _
-
 from services.registry import ServiceRegistry
 from utils.mixins import CreatedModifiedAbstract
 
@@ -58,14 +56,14 @@ class SubscriptionPeriod(CreatedModifiedAbstract):
     period = DateRangeField(verbose_name=_("period"))
 
     class Meta:
-        constraints: ClassVar = [
+        constraints: (
             ExclusionConstraint(
                 name="exclude_overlapping_periods",
                 expressions=[
                     ("period", RangeOperators.OVERLAPS),
                 ],
             ),
-        ]
+        )
 
     def __str__(self) -> str:
         return f"{self.period.lower} - {self.period.upper or _('next general assembly')}"
@@ -144,19 +142,27 @@ class MembershipType(CreatedModifiedAbstract):
 
 
 class ServiceAccess(CreatedModifiedAbstract):
+    """Access to a service for a user."""
+
     class Meta:
         verbose_name = _("service access")
         verbose_name_plural = _("service accesses")
-        constraints = [
+        constraints = (
             models.UniqueConstraint(
                 fields=["user", "service"],
                 name="unique_user_service",
             ),
-        ]
+        )
 
     user = models.ForeignKey("auth.User", on_delete=models.PROTECT)
 
     service = ServiceRegistry.choices_field(verbose_name=_("service"))
 
-    def __str__(self):
+    subscription_data = models.JSONField(
+        verbose_name=_("subscription data"),
+        null=True,
+        blank=True,
+    )
+
+    def __str__(self) -> str:
         return f"{self.user} - {self.service}"
diff --git a/src/services/registry.py b/src/services/registry.py
index 70b5044..6e9e303 100644
--- a/src/services/registry.py
+++ b/src/services/registry.py
@@ -1,16 +1,18 @@
+"""Registry for services."""
+
 from django import forms
 from django_registries.registry import Interface
 from django_registries.registry import Registry
 
 
 class ServiceRegistry(Registry):
-    """Registry for services"""
+    """Registry for services."""
 
     implementations_module = "services"
 
 
 class ServiceInterface(Interface):
-    """Interface for services"""
+    """Interface for services."""
 
     registry = ServiceRegistry
 
@@ -25,16 +27,12 @@ class ServiceInterface(Interface):
     #  this could be used to generate a form for the service, and also to validate
     #  the data saved in a JSONField on the ServiceAccess model
 
-    subscribe_fields: list[tuple[str, forms.Field]] = []
+    subscribe_fields: tuple[tuple[str, forms.Field]] = []
 
-    def get_form(self) -> type:
-        """Get the form for the service"""
-        print(self.subscribe_fields)
+    def get_form_class(self) -> type:
+        """Get the form class for the service."""
         return type(
             "ServiceForm",
             (forms.Form,),
-            {
-                field_name: field_type
-                for field_name, field_type in self.subscribe_fields
-            },
-        )()
+            dict(self.subscribe_fields),
+        )
diff --git a/src/services/services.py b/src/services/services.py
index 9d5135d..49377da 100644
--- a/src/services/services.py
+++ b/src/services/services.py
@@ -1,34 +1,46 @@
+"""Service classes for data.coop."""
+
 from django import forms
 
 from .registry import ServiceInterface
 
 
 class MailService(ServiceInterface):
+    """Mail service."""
+
     slug = "mail"
     name = "Mail"
     url = "https://mail.data.coop"
     description = "Mail service for data.coop"
 
+    subscribe_fields = (("username", forms.CharField()),)
+
 
 class MatrixService(ServiceInterface):
+    """Matrix service."""
+
     slug = "matrix"
     name = "Matrix"
     url = "https://matrix.data.coop"
     description = "Matrix service for data.coop"
 
-    subscribe_fields = [
-        ("username", forms.CharField()),
-    ]
+    subscribe_fields = (("username", forms.CharField()),)
 
 
 class MastodonService(ServiceInterface):
+    """Mastodon service."""
+
     slug = "mastodon"
     name = "Mastodon"
     url = "https://social.data.coop"
     description = "Mastodon service for data.coop"
 
+    subscribe_fields = (("username", forms.CharField()),)
+
 
 class NextcloudService(ServiceInterface):
+    """Nextcloud service."""
+
     slug = "nextcloud"
     name = "Nextcloud"
     url = "https://cloud.data.coop"
@@ -36,6 +48,8 @@ class NextcloudService(ServiceInterface):
 
 
 class HedgeDocService(ServiceInterface):
+    """HedgeDoc service."""
+
     slug = "hedgedoc"
     name = "HedgeDoc"
     url = "https://pad.data.coop"
@@ -44,6 +58,8 @@ class HedgeDocService(ServiceInterface):
 
 
 class RalllyService(ServiceInterface):
+    """Rallly service."""
+
     slug = "rallly"
     name = "Rallly"
     url = "https://when.data.coop"
diff --git a/src/services/templates/services/service_subscribe.html b/src/services/templates/services/service_subscribe.html
index 8df66cb..8fe86bd 100644
--- a/src/services/templates/services/service_subscribe.html
+++ b/src/services/templates/services/service_subscribe.html
@@ -5,7 +5,8 @@
     <div class="content-view">
         <h2>Subscribe to {{ service.name }}</h2>
 
-        <form>
+        <form method="POST">
+            {% csrf_token %}
             {{ form }}
 
             <button type="submit">
diff --git a/src/services/views.py b/src/services/views.py
index 2eddf92..5902c95 100644
--- a/src/services/views.py
+++ b/src/services/views.py
@@ -1,10 +1,21 @@
-# Create your views here.
-from django_view_decorator import namespaced_decorator_factory
+"""Views for the services app."""
 
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+from django.shortcuts import redirect
+from django_view_decorator import namespaced_decorator_factory
 from membership.models import ServiceAccess
-from services.registry import ServiceRegistry
 from utils.view_utils import render
 
+from services.registry import ServiceInterface
+from services.registry import ServiceRegistry
+
+if TYPE_CHECKING:
+    from django.contrib.auth.models import User
+    from django.http import HttpRequest
+    from django.http import HttpResponse
 
 services_view = namespaced_decorator_factory(
     namespace="services",
@@ -17,21 +28,13 @@ services_view = namespaced_decorator_factory(
     name="list",
     login_required=True,
 )
-def services_overview(request):
-    active_services = [
-        access.service_implementation
-        for access in ServiceAccess.objects.filter(
-            user=request.user,
-        )
-    ]
+def services_overview(request: HttpRequest) -> HttpResponse:
+    """View all services."""
+    active_services = get_services(user=request.user)
 
     active_service_classes = [service.__class__ for service in active_services]
 
-    services = [
-        service
-        for _, service in ServiceRegistry.get_items()
-        if service not in active_service_classes
-    ]
+    services = [service for _, service in ServiceRegistry.get_items() if service not in active_service_classes]
 
     context = {
         "non_active_services": services,
@@ -50,7 +53,8 @@ def services_overview(request):
     name="detail",
     login_required=True,
 )
-def service_detail(request, service_slug):
+def service_detail(request: HttpRequest, service_slug: str) -> HttpResponse:
+    """View a service."""
     service = ServiceRegistry.get(slug=service_slug)
 
     context = {
@@ -69,14 +73,28 @@ def service_detail(request, service_slug):
     name="subscribe",
     login_required=True,
 )
-def service_subscribe(request, service_slug):
+def service_subscribe(request: HttpRequest, service_slug: str) -> HttpResponse:
+    """Subscribe to a service."""
     service = ServiceRegistry.get(slug=service_slug)
 
-    # TODO: add a form to subscribe to the service
+    form_class = service.get_form_class()
+
+    if request.method == "POST":
+        form = form_class(request.POST)
+        if form.is_valid():
+            data = form.cleaned_data
+            service_access = ServiceAccess(
+                user=request.user,
+                service=service.slug,
+                subscription_data=data,
+            )
+            service_access.save()
+            return redirect("services:list")
+
     context = {
         "service": service,
         "base_path": "services:list",
-        "form": service.get_form(),
+        "form": form_class(),
     }
 
     return render(
@@ -84,3 +102,13 @@ def service_subscribe(request, service_slug):
         template_name="services/service_subscribe.html",
         context=context,
     )
+
+
+def get_services(*, user: User) -> list[ServiceInterface]:
+    """Get services for the user."""
+    return [
+        access.service_implementation
+        for access in ServiceAccess.objects.filter(
+            user=user,
+        )
+    ]