Hacking on AJAX

This change incorporates the multiple changes we've made
in the past few days in order to actually get AJAX working.

Change-Id: Ia61a0395e7dbac26a143ca6e15049e6a4bdc8b0d
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>
Signed-off-by: Sawyer Bergeron <sbergeron@iol.unh.edu>

4 files changed, 53 insertions, 54 deletions

diff --git a/src/workflow/models.py b/src/workflow/models.py
index 866f442..0521165 100644
--- a/src/workflow/models.py
+++ b/src/workflow/models.py
@@ -318,6 +318,9 @@ class Confirmation_Step(WorkflowStep):
             default_flow_style=False
         ).strip()
 
+        if self.valid == WorkflowStepStatus.VALID:
+            context["confirm_succeeded"] = "true"
+
         return context
 
     def flush_to_db(self):
@@ -329,9 +332,7 @@ class Confirmation_Step(WorkflowStep):
         form = ConfirmationForm(post_data)
         if form.is_valid():
             data = form.cleaned_data['confirm']
-            context = self.get_context()
             if data == "True":
-                context["bypassed"] = "true"
                 errors = self.flush_to_db()
                 if errors:
                     self.set_invalid("ERROR OCCURRED: " + errors)
@@ -339,7 +340,6 @@ class Confirmation_Step(WorkflowStep):
                     self.set_valid("Confirmed")
 
             elif data == "False":
-                context["bypassed"] = "true"
                 self.set_valid("Canceled")
             else:
                 self.set_invalid("Bad Form Contents")
diff --git a/src/workflow/urls.py b/src/workflow/urls.py
index ae620d0..298db95 100644
--- a/src/workflow/urls.py
+++ b/src/workflow/urls.py
@@ -11,7 +11,7 @@
 from django.conf.urls import url
 from django.conf import settings
 
-from workflow.views import delete_session, manager_view, viewport_view, add_workflow, cancel_workflow
+from workflow.views import manager_view, viewport_view, add_workflow, remove_workflow, create_workflow
 from workflow.models import Repository
 from workflow.resource_bundle_workflow import Define_Hardware, Define_Nets, Resource_Meta_Info
 from workflow.booking_workflow import SWConfig_Select, Booking_Resource_Select, Booking_Meta
@@ -19,10 +19,10 @@ from workflow.booking_workflow import SWConfig_Select, Booking_Resource_Select,
 app_name = 'workflow'
 urlpatterns = [
 
-    url(r'^finish/$', delete_session, name='delete_session'),
     url(r'^manager/$', manager_view, name='manager'),
     url(r'^add/$', add_workflow, name='add_workflow'),
-    url(r'^cancel/$', cancel_workflow, name='cancel_workflow'),
+    url(r'^create/$', create_workflow, name='create_workflow'),
+    url(r'^pop/$', remove_workflow, name='remove_workflow'),
     url(r'^$', viewport_view, name='viewport')
 ]
 
diff --git a/src/workflow/views.py b/src/workflow/views.py
index 47241e2..3ab4d30 100644
--- a/src/workflow/views.py
+++ b/src/workflow/views.py
@@ -8,9 +8,8 @@
 ##############################################################################
 
 
-from django.http import HttpResponse, JsonResponse
+from django.http import HttpResponse, JsonResponse, HttpResponseRedirect
 from django.shortcuts import render
-from django.urls import reverse
 
 import uuid
 
@@ -31,33 +30,17 @@ def attempt_auth(request):
         return None
 
 
-def get_redirect_response(result):
-    if not result:
-        return {}
-
-    # need to get type of result, and switch on the type
-    # since has_result, result must be populated with a valid object
-    if isinstance(result, Booking):
-        return {
-            'redir_url': reverse('booking:booking_detail', kwargs={'booking_id': result.id})
-        }
-    else:
-        return {}
-
-
-def delete_session(request):
+def remove_workflow(request):
     manager = attempt_auth(request)
 
     if not manager:
         return no_workflow(request)
 
-    not_last_workflow, result = manager.pop_workflow()
+    has_more_workflows, result = manager.pop_workflow()
 
-    if not_last_workflow:  # this was not the last workflow, so don't redirect away
-        return JsonResponse({})
-    else:
+    if not has_more_workflows:  # this was the last workflow, so delete the reference to it in the tracker
         del ManagerTracker.managers[request.session['manager_session']]
-        return JsonResponse(get_redirect_response(result))
+    return manager.render(request)
 
 
 def add_workflow(request):
@@ -73,15 +56,6 @@ def add_workflow(request):
     return manager.render(request)  # do we want this?
 
 
-def cancel_workflow(request):
-    manager = attempt_auth(request)
-    if not manager:
-        return no_workflow(request)
-
-    if not manager.pop_workflow():
-        del ManagerTracker.managers[request.session['manager_session']]
-
-
 def manager_view(request):
     manager = attempt_auth(request)
     if not manager:
@@ -98,16 +72,27 @@ def viewport_view(request):
     if manager is None:
         return no_workflow(request)
 
-    if request.method == 'GET':
-        return render(request, 'workflow/viewport-base.html')
-    else:
-        pass
+    if request.method != 'GET':
+        return HttpResponse(status=405)
+    return render(request, 'workflow/viewport-base.html')
+
+
+def create_workflow(request):
+    if request.method != 'POST':
+        return HttpResponse(status=405)
+    workflow_type = request.POST.get('workflow_type')
+    try:
+        workflow_type = int(workflow_type)
+    except Exception:
+        return HttpResponse(status=400)
+    mgr_uuid = create_session(workflow_type, request=request,)
+    request.session['manager_session'] = mgr_uuid
+    return HttpResponse()
 
 
 def create_session(wf_type, request):
-    wf = int(wf_type)
     smgr = SessionManager(request=request)
-    smgr.add_workflow(workflow_type=wf, target_id=request.POST.get("target"))
+    smgr.add_workflow(workflow_type=wf_type, target_id=request.POST.get("target"))
     manager_uuid = uuid.uuid4().hex
     ManagerTracker.getInstance().managers[manager_uuid] = smgr
 
diff --git a/src/workflow/workflow_manager.py b/src/workflow/workflow_manager.py
index 605eee7..4677829 100644
--- a/src/workflow/workflow_manager.py
+++ b/src/workflow/workflow_manager.py
@@ -10,6 +10,7 @@
 
 from django.http import JsonResponse
 from django.http.request import QueryDict
+from django.urls import reverse
 
 from booking.models import Booking
 from workflow.workflow_factory import WorkflowFactory
@@ -32,10 +33,9 @@ class SessionManager():
 
     def __init__(self, request=None):
         self.workflows = []
-
         self.owner = request.user
-
         self.factory = WorkflowFactory()
+        self.result = None
 
     def set_step_statuses(self, superclass_type, desired_enabled=True):
         workflow = self.active_workflow()
@@ -62,6 +62,11 @@ class SessionManager():
             )
         )
 
+    def get_redirect(self):
+        if isinstance(self.result, Booking):
+            return reverse('booking:booking_detail', kwargs={'booking_id': self.result.id})
+        return "/"
+
     def pop_workflow(self):
         multiple_wfs = len(self.workflows) > 1
         if multiple_wfs:
@@ -69,9 +74,13 @@ class SessionManager():
                 key = self.workflows[-1].repository.el[Repository.RESULT_KEY]
                 result = self.workflows[-1].repository.el[Repository.RESULT]
                 self.workflows[-2].repository.el[key] = result
-            self.workflows.pop()
-        current_repo = self.workflows[-1].repository
-        return (multiple_wfs, current_repo.el[current_repo.RESULT])
+        prev_workflow = self.workflows.pop()
+        if self.workflows:
+            current_repo = self.workflows[-1].repository
+        else:
+            current_repo = prev_workflow.repository
+        self.result = current_repo.el[current_repo.RESULT]
+        return multiple_wfs, self.result
 
     def status(self, request):
         return {
@@ -82,7 +91,7 @@ class SessionManager():
 
     def handle_post(self, request):
         form = ManagerForm(request.POST)
-        if form.is_valid:
+        if form.is_valid():
             self.get_active_step().post(
                 QueryDict(form.cleaned_data['step_form']),
                 user=request.user
@@ -98,13 +107,18 @@ class SessionManager():
     def handle_request(self, request):
         if request.method == 'POST':
             self.handle_post(request)
-        return self.render()
+        return self.render(request)
 
     def render(self, request, **kwargs):
-        return JsonResponse({
-            "meta": self.status(),
-            "content": self.get_active_step().render_to_string(request)
-        })
+        if self.workflows:
+            return JsonResponse({
+                "meta": self.status(request),
+                "content": self.get_active_step().render_to_string(request),
+            })
+        else:
+            return JsonResponse({
+                "redirect": self.get_redirect()
+            })
 
     def post_render(self, request):
         return self.active_workflow().steps[self.active_workflow().active_index].post_render(request)