Files
twitch-drop-notifier/core/views.py
2025-05-01 02:41:25 +02:00

117 lines
3.8 KiB
Python

from __future__ import annotations
import logging
from collections import defaultdict
from typing import TYPE_CHECKING, Any
from django.db.models import Prefetch
from django.http import HttpRequest, HttpResponse
from django.shortcuts import render
from django.template.response import TemplateResponse
from django.utils import timezone
from django.views.decorators.http import require_http_methods
from core.models import DropCampaign, Game, TimeBasedDrop
if TYPE_CHECKING:
from django.db.models.query import QuerySet
from django.http import HttpRequest
logger: logging.Logger = logging.getLogger(__name__)
@require_http_methods(request_method_list=["GET", "HEAD"])
def get_home(request: HttpRequest) -> HttpResponse:
"""Render the index page.
Args:
request (HttpRequest): The request object.
Returns:
HttpResponse: The response object
"""
now = timezone.now()
grouped_drops = defaultdict(list)
# Query for active drops, efficiently fetching related campaign and game
# Also prefetch benefits if you need them in the template
current_drops_qs = (
TimeBasedDrop.objects.filter(start_at__lte=now, end_at__gte=now)
.select_related(
"campaign__game", # Follows ForeignKey relationships campaign -> game
)
.prefetch_related(
"benefits", # Efficiently fetches ManyToMany benefits
)
.order_by(
"campaign__game__display_name", # Order by game name first
"name", # Then by drop name
)
)
# Group the drops by game in Python
for drop in current_drops_qs:
# Check if the drop has an associated campaign and game
if drop.campaign and drop.campaign.game:
game = drop.campaign.game
grouped_drops[game].append(drop)
else:
# Handle drops without a game (optional, based on your data integrity)
# You could group them under a 'None' key or log a warning
# grouped_drops[None].append(drop)
pass # Or ignore them
context = {
"grouped_drops": dict(grouped_drops), # Convert defaultdict back to dict for template if preferred
}
return render(request, "index.html", context)
@require_http_methods(request_method_list=["GET", "HEAD"])
def get_game(request: HttpRequest, twitch_id: int) -> HttpResponse:
"""Render the game view page.
Args:
request (HttpRequest): The request object.
twitch_id (int): The Twitch ID of the game.
Returns:
HttpResponse: The response object.
"""
try:
time_based_drops_prefetch = Prefetch(
lookup="drops",
queryset=TimeBasedDrop.objects.prefetch_related("benefits"),
)
drop_campaigns_prefetch = Prefetch(
lookup="drop_campaigns",
queryset=DropCampaign.objects.prefetch_related(time_based_drops_prefetch),
)
game: Game = (
Game.objects.select_related("org").prefetch_related(drop_campaigns_prefetch).get(twitch_id=twitch_id)
)
except Game.DoesNotExist:
return HttpResponse(status=404, content="Game not found.")
except Game.MultipleObjectsReturned:
return HttpResponse(status=500, content="Multiple games found with the same Twitch ID.")
context: dict[str, Any] = {"game": game}
return TemplateResponse(request=request, template="game.html", context=context)
@require_http_methods(request_method_list=["GET", "HEAD"])
def get_games(request: HttpRequest) -> HttpResponse:
"""Render the game view page.
Args:
request (HttpRequest): The request object.
Returns:
HttpResponse: The response object.
"""
games: QuerySet[Game] = Game.objects.all()
context: dict[str, QuerySet[Game] | str] = {"games": games}
return TemplateResponse(request=request, template="games.html", context=context)