Add "Show Deck" API Endpoint

Fixes #36

OpenShow/slides/api.py

@@ -1,5 +1,5 @@
 from ninja import Router, Schema
-from .models import Slide, Show, Display
+from .models import Slide, Show, Display, Deck
 from django.shortcuts import get_object_or_404
 
 router = Router()
@@ -15,6 +15,11 @@ class SlideAdvanceSchema(Schema):
     direction: str
 
 
+class ShowDeckSchema(Schema):
+    display_pk: int
+    deck_pk: int
+
+
 @router.post("show_slide")
 def show_slide(request, slide_and_show: SlideAndShowSchema):
     slide = get_object_or_404(Slide, pk=slide_and_show.slide_pk)
@@ -23,6 +28,15 @@ def show_slide(request, slide_and_show: SlideAndShowSchema):
     return {"message": "OK"}
 
 
+@router.post("show_deck")
+def show_deck(request, data: ShowDeckSchema):
+    display = get_object_or_404(Display, pk=data.display_pk)
+    deck = get_object_or_404(Deck, pk=data.deck_pk)
+    initial_slide = deck.slides.first()
+    initial_slide.send_to_display([display, ])
+    return {"message": "OK"}
+
+
 @router.post("next_slide")
 def next_slide(request, slide_advance: SlideAdvanceSchema):
     display = get_object_or_404(Display, pk=slide_advance.display_pk)