NDOJ/judge/views/api/api_v2.py
2021-12-08 23:52:52 -06:00

121 lines
4.1 KiB
Python

from operator import attrgetter
from django.db.models import Max
from django.http import JsonResponse
from judge.models import ContestParticipation, Problem, Profile, Submission
from judge.utils.ranker import ranker
from judge.views.contests import contest_ranking_list
def error(message):
return JsonResponse({'error': message}, status=422)
def api_v2_user_info(request):
"""
{
"points": 100.0,
"rating": 2452,
"rank": "user",
"organizations": [],
"solved_problems": ["ccc14s4", ...],
"attempted_problems": [
{
"code": "Hello, World!",
"points": 1.0,
"max_points": 2.0
}
],
"authored_problems": ["dmpg16s4"],
"contest_history": [
{
"contest": {
"code": "halloween14",
"name": "Kemonomimi Party",
"tags": ["seasonal"],
"time_limit": null,
"start_time": "2014-10-31T04:00:00+00:00",
"end_time": "2014-11-10T05:00:00+00:00"
},
"rank": 1,
"rating:": 1800
},
// ...
]
}
"""
try:
username = request.GET['username']
except KeyError:
return error("no username passed")
if not username:
return error("username argument not provided")
try:
profile = Profile.objects.get(user__username=username)
except Profile.DoesNotExist:
return error("no such user")
last_rating = list(profile.ratings.order_by('-contest__end_time'))
resp = {
"rank": profile.display_rank,
"organizations": list(profile.organizations.values_list('key', flat=True)),
}
contest_history = []
for participation in (ContestParticipation.objects.filter(user=profile, virtual=0, contest__is_visible=True)
.order_by('-contest__end_time')):
contest = participation.contest
problems = list(contest.contest_problems.select_related('problem').defer('problem__description')
.order_by('order'))
rank, result = next(filter(lambda data: data[1].user == profile.user,
ranker(contest_ranking_list(contest, problems),
key=attrgetter('points', 'cumtime'))))
contest_history.append({
'contest': {
'code': contest.key,
'name': contest.name,
'tags': list(contest.tags.values_list('name', flat=True)),
'time_limit': contest.time_limit and contest.time_limit.total_seconds(),
'start_time': contest.start_time.isoformat(),
'end_time': contest.end_time.isoformat(),
},
'rank': rank,
'rating': result.participation_rating,
})
resp['contests'] = {
"current_rating": last_rating[0].rating if last_rating else None,
'history': contest_history,
}
solved_problems = []
attempted_problems = []
problem_data = (Submission.objects.filter(points__gt=0, user=profile, problem__is_public=True,
problem__is_organization_private=False)
.annotate(max_pts=Max('points'))
.values_list('max_pts', 'problem__points', 'problem__code')
.distinct())
for awarded_pts, max_pts, problem in problem_data:
if awarded_pts == max_pts:
solved_problems.append(problem)
else:
attempted_problems.append({
'awarded': awarded_pts,
'max': max_pts,
'problem': problem,
})
resp['problems'] = {
'points': profile.points,
'solved': solved_problems,
'attempted': attempted_problems,
'authored': list(Problem.objects.filter(is_public=True, is_organization_private=False, authors=profile)
.values_list('code', flat=True)),
}
return JsonResponse(resp)