import random
from django.shortcuts import render
from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt
from django.views.decorators.http import require_http_methods
from app.models import Alert

ALERT_TYPES = [Alert.TYPE_INFO, Alert.TYPE_WARNING, Alert.TYPE_CRITICAL]
DESCRIPTIONS = [
    "CPU usage above 90%",
    "Memory leak detected in worker",
    "Disk space below 10%",
    "Network timeout on upstream",
    "Service unreachable: auth",
    "Database slow query detected",
    "HTTP 5xx rate spike",
    "SSL certificate expiring soon",
    "Replica lag too high",
    "Queue backlog growing",
]


def index(request):
    alerts = Alert.objects.all()
    return render(request, "index.html", {"alerts": alerts, "count": alerts.count()})


@csrf_exempt
@require_http_methods(["GET", "POST"])
def bench_clear(request):
    Alert.objects.all().delete()
    return JsonResponse({"status": "ok", "deleted": True})


@csrf_exempt
@require_http_methods(["GET", "POST"])
def bench_populate(request):
    count = int(request.GET.get("count", 10))
    for _ in range(count):
        Alert.objects.create(
            alert_type=random.choice(ALERT_TYPES),
            description=random.choice(DESCRIPTIONS),
        )
    return JsonResponse({"status": "ok", "created": count})