Files
twitch-drop-notifier/core/views.py
2024-12-09 06:18:57 +01:00

142 lines
4.6 KiB
Python

from __future__ import annotations
import logging
from typing import TYPE_CHECKING, Any
from django.db.models import F, Prefetch
from django.http import HttpRequest, HttpResponse
from django.template.response import TemplateResponse
from django.utils import timezone
from core.models import Benefit, DropCampaign, Game, RewardCampaign, TimeBasedDrop
if TYPE_CHECKING:
from django.db.models.query import QuerySet
from django.http import HttpRequest
logger: logging.Logger = logging.getLogger(__name__)
def get_reward_campaigns() -> QuerySet[RewardCampaign]:
"""Get the reward campaigns.
Returns:
QuerySet[RewardCampaign]: The reward campaigns.
"""
return RewardCampaign.objects.all().prefetch_related("rewards").order_by("-created_at")
def get_games_with_drops() -> QuerySet[Game]:
"""Get the games with drops, sorted by when the drop campaigns end.
Returns:
QuerySet[Game]: The games with drops.
"""
# Prefetch the benefits for the time-based drops.
benefits_prefetch = Prefetch(lookup="benefits", queryset=Benefit.objects.all())
active_time_based_drops: QuerySet[TimeBasedDrop] = TimeBasedDrop.objects.filter(
ends_at__gte=timezone.now(),
starts_at__lte=timezone.now(),
).prefetch_related(benefits_prefetch)
# Prefetch the active time-based drops for the drop campaigns.
drops_prefetch = Prefetch(lookup="drops", queryset=active_time_based_drops)
active_campaigns: QuerySet[DropCampaign] = DropCampaign.objects.filter(
ends_at__gte=timezone.now(),
starts_at__lte=timezone.now(),
).prefetch_related(drops_prefetch)
return (
Game.objects.filter(drop_campaigns__in=active_campaigns)
.annotate(drop_campaign_end=F("drop_campaigns__ends_at"))
.distinct()
.prefetch_related(Prefetch("drop_campaigns", queryset=active_campaigns))
.select_related("org")
.order_by("drop_campaign_end")
)
def index(request: HttpRequest) -> HttpResponse:
"""Render the index page.
Args:
request (HttpRequest): The request object.
Returns:
HttpResponse: The response object
"""
try:
reward_campaigns: QuerySet[RewardCampaign] = get_reward_campaigns()
games: QuerySet[Game] = get_games_with_drops()
except Exception:
logger.exception("Error fetching reward campaigns or games.")
return HttpResponse(status=500)
context: dict[str, Any] = {
"reward_campaigns": reward_campaigns,
"games": games,
}
return TemplateResponse(request, "index.html", context)
def game_view(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)
def games_view(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)
def reward_campaign_view(request: HttpRequest) -> HttpResponse:
"""Render the reward campaign view page.
Args:
request (HttpRequest): The request object.
Returns:
HttpResponse: The response object.
"""
reward_campaigns: QuerySet[RewardCampaign] = RewardCampaign.objects.all()
context: dict[str, QuerySet[RewardCampaign]] = {"reward_campaigns": reward_campaigns}
return TemplateResponse(request=request, template="reward_campaigns.html", context=context)