Merge branch 'master' of gitlab.prodcontest.ru:team-15/project

.gitlab-ci.yml

@@ -54,6 +54,24 @@ build_backend-staticfiles:
     DOCKERFILE_PATH: "Dockerfile.staticfiles"
     IMAGE_NAME: "$CI_REGISTRY_IMAGE/backend-staticfiles"
 
+build_checker:
+  <<: *build-template
+  rules:
+    - if: '$CI_COMMIT_REF_NAME == "master"'
+  variables:
+    CONTEXT: "${CI_PROJECT_DIR}/services/checker"
+    DOCKERFILE_PATH: "Dockerfile"
+    IMAGE_NAME: "$CI_REGISTRY_IMAGE/checker"
+
+build_custom-python:
+  <<: *build-template
+  rules:
+    - if: '$CI_COMMIT_REF_NAME == "master"'
+  variables:
+    CONTEXT: "${CI_PROJECT_DIR}/services/checker"
+    DOCKERFILE_PATH: "Dockerfile.checker"
+    IMAGE_NAME: "$CI_REGISTRY_IMAGE/custom-python"
+
 build_docs:
   <<: *build-template
   rules:

compose.yaml

@@ -370,6 +370,23 @@ services:
     restart: unless-stopped
     shm_size: 4mb
 
+  checker:
+    image: gitlab.prodcontest.ru:5050/team-15/project/checker:latest
+    build:
+      context: ./services/checker
+      dockerfile: Dockerfile
+    restart: unless-stopped
+    ports:
+      - name: web
+        target: 8000
+        published: 8009
+        host_ip: 0.0.0.0
+        protocol: tcp
+    volumes:
+      - type: bind
+        source: /var/run/docker.sock
+        target: /var/run/docker.sock
+
   proxy:
     image: docker.io/nginx:1.27-alpine3.21
     configs:

infrastructure/backend/.env.template

@@ -18,3 +18,5 @@ MINIO_ENDPOINT=minio:9000
 MINIO_CUSTOM_ENDPOINT_URL=https://prod-team-15-minio-2pc0i3lc.final.prodcontest.ru
 MINIO_ACCESS_KEY=admin
 MINIO_SECRET_KEY=password
+
+CHECKER_API_ENDPOINT=http://checker:8000

services/backend/Dockerfile.staticfiles

@@ -24,4 +24,6 @@ FROM docker.io/nginx:latest
 
 COPY --from=builder /app/static /usr/share/nginx/html
 
+COPY ../checker/checker_requirements.txt .
+
 CMD ["nginx", "-g", "daemon off;"]

services/backend/api/v1/achievement/schemas.py

@@ -0,0 +1,14 @@
+from ninja import ModelSchema
+
+from apps.achievement.models import Achievement
+
+
+class AchievementSchema(ModelSchema):
+    class Meta:
+        model = Achievement
+        fields = (
+            "id",
+            "name",
+            "description",
+            "icon",
+        )

services/backend/api/v1/achievement/views.py

@@ -0,0 +1,20 @@
+from http import HTTPStatus as status
+
+from ninja import Router
+
+from api.v1.achievement.schemas import AchievementSchema
+from api.v1.schemas import UnauthorizedError
+from apps.achievement.models import Achievement
+
+router = Router()
+
+
+@router.get(
+    "",
+    response={
+        status.OK: list[AchievementSchema],
+        status.UNAUTHORIZED: UnauthorizedError,
+    },
+)
+def get_all_achievements(request):
+    return Achievement.objects.all()

services/backend/api/v1/review/schemas.py

@@ -38,6 +38,7 @@ class SubmissionOut(ModelSchema):
     competition: UUID = Field(..., alias="task.competition.id")
     competition_name: str = Field(..., alias="task.competition.title")
     task_position: int = Field(..., alias="task.in_competition_position")
+    task_title: str = Field(..., alias="task.title")
 
     @staticmethod
     def resolve_criteries(self, context) -> list[CriteriaOut] | None:

services/backend/api/v1/review/views.py

@@ -1,5 +1,6 @@
 from datetime import datetime
 from http import HTTPStatus as status
+from statistics import median
 from uuid import UUID
 
 from django.http import HttpRequest
@@ -84,15 +85,22 @@ def evaluate_submission(
     review.evaluation = evaluation
     review.state = ReviewStatusChoices.CHECKED.value
     review.submission.checked_at = datetime.now()
-
-    points = 0
-    for criterea in evaluation:
-        points += criterea["mark"]
-    review.submission.earned_points = (
-        points  # TODO: оценка не от последнего проверяющего а средняя по всем
-    )
     review.save()
 
+    submission_evaluations = Review.objects.filter(
+        submission=submission
+    ).values_list("evaluation", flat=True)
+
+    marks = []
+    for evaluation in submission_evaluations:
+        mark = 0
+        for criterea in evaluation:
+            mark += criterea["mark"]
+        marks.append(mark)
+    earned_points = median(marks)
+
+    review.submission.earned_points = earned_points
+
     all_checked = not submission.reviews.exclude(
         state=ReviewStatusChoices.CHECKED
     ).exists()
@@ -101,4 +109,5 @@ def evaluate_submission(
             CompetitionTaskSubmission.StatusChoices.CHECKED.value
         )
     review.submission.save()
+
     return status.OK, review.submission

services/backend/api/v1/task/schemas.py

@@ -3,10 +3,27 @@ from uuid import UUID
 
 from ninja import ModelSchema, Schema
 
-from apps.task.models import CompetitionTask, CompetitionTaskSubmission, CompetitionTaskAttachment
+from apps.task.models import (
+    CompetitionTask,
+    CompetitionTaskAttachment,
+    CompetitionTaskSubmission,
+)
 
 
 class TaskOutSchema(ModelSchema):
+    status: Literal["sent", "checked", "checking", "not_submitted"] = None
+    type: Literal["input", "checker", "review"] = None
+
+    @staticmethod
+    def resolve_status(
+        self, context
+    ) -> Literal["sent", "checked", "checking", "not_submitted"]:
+        if submission := CompetitionTaskSubmission.objects.filter(
+            task=self, user=context.get("request").auth
+        ).first():
+            return submission.status
+        return "not_submitted"
+
     class Meta:
         model = CompetitionTask
         fields = [
@@ -14,7 +31,6 @@ class TaskOutSchema(ModelSchema):
             "competition",
             "title",
             "description",
-            "type",
             "in_competition_position",
             "points",
         ]
@@ -29,10 +45,19 @@ class HistorySubmissionOut(ModelSchema):
 
     class Meta:
         model = CompetitionTaskSubmission
-        fields = ("id", "earned_points", "timestamp", "content",)
+        fields = (
+            "id",
+            "earned_points",
+            "timestamp",
+            "content",
+        )
 
 
 class TaskAttachmentSchema(ModelSchema):
     class Meta:
         model = CompetitionTaskAttachment
-        fields = ("id", "file", "public",)
+        fields = (
+            "id",
+            "file",
+            "public",
+        )

services/backend/api/v1/task/views.py

@@ -155,5 +155,5 @@ def get_submissions_history(request, competition_id: UUID, task_id: UUID):
 def get_task_attachments(request, competition_id: UUID, task_id: UUID):
     task = get_object_or_404(CompetitionTask, id=task_id)
     return status.OK, CompetitionTaskAttachment.objects.filter(
-        competition_id=competition_id, task=task, user=request.auth
-    )
+        task=task
+    ).all()

services/backend/api/v1/user/schemas.py

@@ -22,4 +22,4 @@ class LoginSchema(ModelSchema):
 class UserSchema(ModelSchema):
     class Meta:
         model = User
-        fields = ["id", "email", "username", "created_at",]
+        fields = ["id", "email", "username", "created_at", "achievements"]

services/backend/apps/achievement/admin.py

@@ -0,0 +1,15 @@
+from django.contrib import admin
+
+from apps.achievement.models import Achievement
+
+
+@admin.register(Achievement)
+class AchievementAdmin(admin.ModelAdmin):
+    list_display = (
+        "id",
+        "name",
+    )
+    search_fields = (
+        "name",
+        "description",
+    )

services/backend/apps/achievement/apps.py

@@ -0,0 +1,7 @@
+from django.apps import AppConfig
+
+
+class AchievementConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "apps.achievement"
+    verbose_name = "Ачивки"

services/backend/apps/achievement/migrations/0001_initial.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:09
+
+import apps.achievement.models
+import uuid
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Achievement',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.CharField(max_length=30, unique=True, verbose_name='название')),
+                ('description', models.TextField(verbose_name='описание')),
+                ('icon', models.FileField(upload_to=apps.achievement.models.Achievement.image_url_upload_to, verbose_name='иконка достижения')),
+            ],
+            options={
+                'verbose_name': 'ачивка',
+                'verbose_name_plural': 'ачивки',
+            },
+        ),
+    ]

services/backend/apps/achievement/migrations/0002_achievement_need_count_achievement_type.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('achievement', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='achievement',
+            name='need_count',
+            field=models.IntegerField(default=5, help_text='Здесь нужно указать количество действий, необходимое для получения ачивок. Например, если вы указали в предыдущем пункте "Выполненные задания" а тут 5, то ачивка будет выдаваться за 5 решенных заданий', verbose_name='кол-во того, что нужно для получения ачивки'),
+        ),
+        migrations.AddField(
+            model_name='achievement',
+            name='type',
+            field=models.CharField(choices=[('correct_tasks', 'Выполненные задания')], default='correct_tasks', help_text='За какой тип достижений будет выдаваться ачивка', max_length=20, verbose_name='тип'),
+        ),
+    ]

services/backend/apps/achievement/migrations/0003_remove_achievement_need_count_and_more_squashed_0004_alter_achievement_slug.py

@@ -0,0 +1,28 @@
+# Generated by Django 5.1.6 on 2025-03-02 13:36
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    replaces = [('achievement', '0003_remove_achievement_need_count_and_more'), ('achievement', '0004_alter_achievement_slug')]
+
+    dependencies = [
+        ('achievement', '0002_achievement_need_count_achievement_type'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='achievement',
+            name='need_count',
+        ),
+        migrations.RemoveField(
+            model_name='achievement',
+            name='type',
+        ),
+        migrations.AddField(
+            model_name='achievement',
+            name='slug',
+            field=models.SlugField(unique=True, verbose_name='слаг'),
+        ),
+    ]

services/backend/apps/achievement/models.py

@@ -0,0 +1,29 @@
+from django.db import models
+
+from apps.core.models import BaseModel
+
+
+class Achievement(BaseModel):
+    class AchievementType(models.TextChoices):
+        CORRECT_TASKS = "correct_tasks", "Выполненные задания"
+
+    def image_url_upload_to(instance, filename):
+        return f"achievements/{instance.id}/icon/{filename}"
+
+    name = models.CharField(
+        max_length=30, verbose_name="название", unique=True
+    )
+    description = models.TextField(verbose_name="описание")
+    icon = models.FileField(
+        verbose_name="иконка достижения",
+        upload_to=image_url_upload_to,
+    )
+
+    slug = models.SlugField(verbose_name="слаг", unique=True)
+
+    def __str__(self):
+        return self.name
+
+    class Meta:
+        verbose_name = "ачивка"
+        verbose_name_plural = "ачивки"

services/backend/apps/competition/models.py

@@ -15,7 +15,7 @@ class Competition(BaseModel):
         SOLO = "solo", "Индивидуальный"
 
     def image_url_upload_to(instance, filename):
-        return f"/competitions/{instance.id}/image"
+        return f"competitions/{instance.id}/image/{filename}"
 
     title = models.CharField(max_length=100, verbose_name="название")
     description = models.TextField(verbose_name="описание")

services/backend/apps/core/admin.py

@@ -1,4 +1,4 @@
 from django.contrib import admin
-from django.contrib.auth.models import Group, User
+from django.contrib.auth.models import Group
 
 admin.site.unregister(Group)

services/backend/apps/core/management/commands/generate_data.py

@@ -8,7 +8,7 @@ from django.core.management.base import BaseCommand
 from django.utils import timezone
 
 from apps.competition.models import Competition, State
-from apps.review.models import Review, Reviewer
+from apps.review.models import Reviewer
 from apps.task.models import CompetitionTask, CompetitionTaskSubmission
 from apps.user.models import User, UserRole
 
@@ -99,11 +99,13 @@ class Command(BaseCommand):
                 title = f"Task {i} for {comp.title}"
                 description = f"Task description for task {i} in {comp.title}"
                 task = CompetitionTask.objects.create(
+                    in_competition_position=i,
                     competition=comp,
                     title=title,
                     description=description,
                     type=task_type,
                     points=random.randint(1, 10),
+                    submission_reviewers_count=random.randint(2, 10),
                     max_attempts=random.randint(1, 10),
                 )
                 tasks.append(task)

services/backend/apps/review/admin.py

@@ -1,9 +1,15 @@
 from django.contrib import admin
 
-from apps.review.models import Review, Reviewer
+from apps.review.models import Reviewer
 
 
 @admin.register(Reviewer)
 class ReviewersAdmin(admin.ModelAdmin):
-    list_display = ("name", "surname",)
-    search_fields = ("name", "surname",)
+    list_display = (
+        "name",
+        "surname",
+    )
+    search_fields = (
+        "name",
+        "surname",
+    )

services/backend/apps/review/apps.py

@@ -5,3 +5,6 @@ class CoreConfig(AppConfig):
     name = "apps.review"
     label = "review"
     verbose_name = "Проверка"
+
+    def ready(self):
+        import apps.review.signals

services/backend/apps/review/models.py

@@ -24,22 +24,24 @@ class ReviewStatusChoices(models.TextChoices):
 
 
 class Review(BaseModel):
-    reviewer = models.ForeignKey(Reviewer, on_delete=models.CASCADE,
-                                 verbose_name="проверяющий")
+    reviewer = models.ForeignKey(
+        Reviewer, on_delete=models.CASCADE, verbose_name="проверяющий"
+    )
     submission = models.ForeignKey(
         "task.CompetitionTaskSubmission",
         on_delete=models.CASCADE,
         related_name="reviews",
-        verbose_name="посылка"
+        verbose_name="посылка",
     )
 
-    evaluation = models.JSONField(default=list, null=True, blank=True,
-                                  verbose_name="выполнение")
+    evaluation = models.JSONField(
+        default=list, null=True, blank=True, verbose_name="выполнение"
+    )
     state = models.CharField(
         choices=ReviewStatusChoices.choices,
         default=ReviewStatusChoices.NOT_CHECKED.value,
         max_length=11,
-        verbose_name="состояние"
+        verbose_name="состояние",
     )
 
     def __str__(self):

services/backend/apps/review/signals.py

@@ -0,0 +1,14 @@
+# myapp/signals.py
+from django.db.models.signals import m2m_changed
+from django.dispatch import receiver
+
+from apps.review.models import Review
+from apps.task.models import CompetitionTask, CompetitionTaskSubmission
+
+
+@receiver(m2m_changed, sender=CompetitionTask.reviewers.through)
+def print_reviewers(sender, instance, action, **kwargs):
+    if action in ['post_add', 'post_remove', 'post_clear']:
+        submissions = CompetitionTaskSubmission.objects.filter(task=instance)
+        for submission in submissions:
+            submission.send_on_review()

services/backend/apps/task/admin.py

@@ -1,7 +1,10 @@
 from django.contrib import admin
 
-from apps.task.models import CompetitionTask, CompetitionTaskAttachment, \
-    CompetitionTaskSubmission
+from apps.task.models import (
+    CompetitionTask,
+    CompetitionTaskAttachment,
+    CompetitionTaskSubmission,
+)
 
 
 class CompletionAttachmentInline(admin.StackedInline):
@@ -12,15 +15,22 @@ class CompletionAttachmentInline(admin.StackedInline):
 @admin.register(CompetitionTask)
 class CompetitionTaskAdmin(admin.ModelAdmin):
     list_display = ("title", "type", "points")
-    filter_horizontal = (
-        "reviewers",
-    )
+    filter_horizontal = ("reviewers",)
 
 
 @admin.register(CompetitionTaskSubmission)
 class CompetitionTaskSubmissionAdmin(admin.ModelAdmin):
-    list_display = ("task", "user", "status",)
-    search_fields = ("task__id", "task__title", "user__username", "user__email")
+    list_display = (
+        "task",
+        "user",
+        "status",
+    )
+    search_fields = (
+        "task__id",
+        "task__title",
+        "user__username",
+        "user__email",
+    )
     filter = ("plagiarism_checked",)
     ordering = ["-timestamp"]
 

services/backend/apps/task/migrations/0002_alter_competitiontasksubmission_options_and_more.py

@@ -0,0 +1,71 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:09
+
+import apps.task.models
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('review', '0002_initial'),
+        ('task', '0001_initial'),
+        ('user', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='competitiontasksubmission',
+            options={'verbose_name': 'посылка', 'verbose_name_plural': 'посылки'},
+        ),
+        migrations.AlterField(
+            model_name='competitiontask',
+            name='reviewers',
+            field=models.ManyToManyField(blank=True, help_text='Справа отображаются действующие проверяющие, слева - доступные для выбора. Для перемещения можно кликнуть 2 раза по проверяющему', to='review.reviewer', verbose_name='ревьюверы'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='checked_at',
+            field=models.DateTimeField(blank=True, null=True, verbose_name='дата проверки'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='content',
+            field=models.FileField(upload_to=apps.task.models.CompetitionTaskSubmission.submission_content_upload_to, verbose_name='содержание посылки'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='earned_points',
+            field=models.IntegerField(blank=True, null=True, verbose_name='баллы за задание'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='plagiarism_checked',
+            field=models.BooleanField(default=False, verbose_name='проверено на плагиат'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='result',
+            field=models.JSONField(blank=True, default=None, null=True, verbose_name='результат проверки'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='stdout',
+            field=models.FileField(blank=True, help_text='Используется только при проверке чекером', null=True, upload_to=apps.task.models.CompetitionTaskSubmission.submission_stdout_upload_to, verbose_name='вывод программы'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='task',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='task.competitiontask', verbose_name='задание'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='timestamp',
+            field=models.DateTimeField(auto_now_add=True, verbose_name='дата отправки'),
+        ),
+        migrations.AlterField(
+            model_name='competitiontasksubmission',
+            name='user',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='user.user', verbose_name='пользователь'),
+        ),
+    ]

services/backend/apps/task/migrations/0003_alter_competitiontask_description.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:23
+
+import tinymce.models
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('task', '0002_alter_competitiontasksubmission_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='competitiontask',
+            name='description',
+            field=tinymce.models.HTMLField(verbose_name='описание'),
+        ),
+    ]

services/backend/apps/task/migrations/0004_competitiontask_submission_reviewers_count_and_more.py

@@ -0,0 +1,24 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:49
+
+import martor.models
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('task', '0003_alter_competitiontask_description'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='competitiontask',
+            name='submission_reviewers_count',
+            field=models.PositiveSmallIntegerField(blank=True, default=1, null=True),
+        ),
+        migrations.AlterField(
+            model_name='competitiontask',
+            name='description',
+            field=martor.models.MartorField(verbose_name='описание'),
+        ),
+    ]

services/backend/apps/task/models.py

@@ -2,11 +2,11 @@ from uuid import uuid4
 
 from django.db import models
 from django.db.models import Count, Q
-from tinymce.models import HTMLField
+from martor.models import MartorField
 
 from apps.competition.models import Competition
 from apps.core.models import BaseModel
-from apps.review.models import Review, ReviewStatusChoices, Reviewer
+from apps.review.models import Review, Reviewer, ReviewStatusChoices
 from apps.user.models import User
 
 
@@ -17,14 +17,14 @@ class CompetitionTask(BaseModel):
         REVIEW = "review", "Ручная"
 
     def answer_file_upload_to(instance, filename) -> str:
-        return f"/tasks/{instance.id}/answer/{uuid4()}/filename"
+        return f"tasks/{instance.id}/answer/{uuid4()}/{filename}"
 
     in_competition_position = models.PositiveSmallIntegerField(
         null=True, blank=True
     )
     competition = models.ForeignKey(Competition, on_delete=models.CASCADE)
     title = models.CharField(verbose_name="заголовок", max_length=50)
-    description = HTMLField(verbose_name="описание", max_length=300)
+    description = MartorField(verbose_name="описание")
     max_attempts = models.PositiveSmallIntegerField(null=True, blank=True)
     type = models.CharField(
         choices=CompetitionTaskType, max_length=8, verbose_name="тип проверки"
@@ -55,7 +55,10 @@ class CompetitionTask(BaseModel):
         Reviewer,
         blank=True,
         verbose_name="ревьюверы",
-        help_text="Справа отображаются действующие проверяющие, слева - доступные для выбора. Для перемещения можно кликнуть 2 раза по проверяющему"
+        help_text="Справа отображаются действующие проверяющие, слева - доступные для выбора. Для перемещения можно кликнуть 2 раза по проверяющему",
+    )
+    submission_reviewers_count = models.PositiveSmallIntegerField(
+        default=1, null=True, blank=True
     )
 
     def __str__(self):
@@ -79,12 +82,12 @@ class CompetitionTaskCriteria(BaseModel):
 
 class CompetitionTaskAttachment(BaseModel):
     def file_upload_at(instance, filename):
-        return f"/attachment/{instance.id}/file"
+        return f"attachment/{instance.id}/file/{filename}"
 
-    task = models.ForeignKey(CompetitionTask, on_delete=models.CASCADE,
-                             verbose_name="задание")
-    file = models.FileField(upload_to=file_upload_at,
-                            verbose_name="файл")
+    task = models.ForeignKey(
+        CompetitionTask, on_delete=models.CASCADE, verbose_name="задание"
+    )
+    file = models.FileField(upload_to=file_upload_at, verbose_name="файл")
     bind_at = models.FilePathField(verbose_name="путь сохранения")
     public = models.BooleanField(default=False, verbose_name="публичный")
 
@@ -96,50 +99,61 @@ class CompetitionTaskSubmission(BaseModel):
         CHECKED = "checked"
 
     def submission_content_upload_to(instance, filename) -> str:
-        return f"submissions/{instance.id}/content"
+        return f"submissions/{instance.id}/content/{filename}"
 
     def submission_stdout_upload_to(instance, filename) -> str:
-        return f"/submissions/{instance.id}/stdout"
+        return f"submissions/{instance.id}/stdout/{filename}"
 
-    user = models.ForeignKey(User, on_delete=models.CASCADE,
-                             verbose_name="пользователь")
-    task = models.ForeignKey(CompetitionTask, on_delete=models.CASCADE,
-                             verbose_name="задание")
+    user = models.ForeignKey(
+        User, on_delete=models.CASCADE, verbose_name="пользователь"
+    )
+    task = models.ForeignKey(
+        CompetitionTask, on_delete=models.CASCADE, verbose_name="задание"
+    )
 
     status = models.CharField(
         choices=StatusChoices.choices,
         default=StatusChoices.SENT,
         max_length=8,
-        verbose_name="статус"
+        verbose_name="статус",
     )
 
     # code or text or file
-    content = models.FileField(upload_to=submission_content_upload_to,
-                               verbose_name="содержание посылки")
+    content = models.FileField(
+        upload_to=submission_content_upload_to,
+        verbose_name="содержание посылки",
+    )
 
     # only if task type is checker
     stdout = models.FileField(
-        upload_to=submission_stdout_upload_to, null=True, blank=True,
+        upload_to=submission_stdout_upload_to,
+        null=True,
+        blank=True,
         verbose_name="вывод программы",
-        help_text="Используется только при проверке чекером"
+        help_text="Используется только при проверке чекером",
     )
 
     # depends on task type:
     # - input: {"correct": boolean}
     # - file: {"total_points": integer, "by_criteria": ["criteria_name": integer]}
     # - code: {"correct": boolean}
-    result = models.JSONField(default=None, null=True, blank=True,
-                              verbose_name="результат проверки")
+    result = models.JSONField(
+        default=None, null=True, blank=True, verbose_name="результат проверки"
+    )
     # just more readable result representation, maybe will be calcuated somehow more complex depends on criteria
-    earned_points = models.IntegerField(null=True, blank=True,
-                                        verbose_name="баллы за задание")
+    earned_points = models.IntegerField(
+        null=True, blank=True, verbose_name="баллы за задание"
+    )
 
-    checked_at = models.DateTimeField(null=True, blank=True,
-                                      verbose_name="дата проверки")
-    plagiarism_checked = models.BooleanField(default=False,
-                                             verbose_name="проверено на плагиат")
-    timestamp = models.DateTimeField(auto_now_add=True,
-                                     verbose_name="дата отправки")
+    checked_at = models.DateTimeField(
+        null=True, blank=True, verbose_name="дата проверки"
+    )
+    plagiarism_checked = models.BooleanField(
+        default=False, verbose_name="проверено на плагиат"
+    )
+    timestamp = models.DateTimeField(
+        auto_now_add=True, verbose_name="дата отправки"
+    )
 
     class Meta:
         verbose_name = "посылка"
@@ -152,8 +166,8 @@ class CompetitionTaskSubmission(BaseModel):
         if not self.task.reviewers.exists():
             return
 
-        reviewer = (
-            self.task.reviewers.annotate(
+        reviewers_count = self.task.submission_reviewers_count
+        reviewers = self.task.reviewers.annotate(
             pending_count=Count(
                 "review",
                 filter=Q(
@@ -163,11 +177,12 @@ class CompetitionTaskSubmission(BaseModel):
                     ]
                 ),
             )
-            )
-            .order_by("pending_count")
-            .first()
-        )
-        review = Review.objects.create(
+        ).order_by("pending_count")[
+            :reviewers_count
+        ]  # да это медленно работает и чо
+
+        for reviewer in reviewers:
+            Review.objects.update_or_create(
                 reviewer=reviewer,
                 submission=self,
             )

services/backend/apps/task/tasks.py

@@ -1,148 +1,50 @@
-import ast
-import contextlib
-import hashlib
-import os
-import sys
-import tempfile
-from io import StringIO
+import requests
+from celery import shared_task
+from django.core.files.base import ContentFile
 
-from config.celery import app
-from apps.task.models import CompetitionTaskSubmission
-
-ALLOWED_MODULES = {
-    "pandas",
-    "numpy",
-    "matplotlib",
-    "seaborn",
-    "scipy",
-    "sklearn",
-    "datetime",
-    "json",
-    "csv",
-    "math",
-    "statistics",
-    "statsmodels",
-}
+from django.conf import settings
 
 
-class SecurityException(Exception):
-    pass
+@shared_task(bind=True, max_retries=3)
+def analyze_data_task(self, submission_id):
+    from .models import CompetitionTaskSubmission
 
-
-def validate_code(code_str):
-    try:
-        tree = ast.parse(code_str)
-    except SyntaxError as e:
-        raise SecurityException(f"Syntax error: {e!s}")
-
-    class ImportVisitor(ast.NodeVisitor):
-        def visit_Import(self, node):
-            for alias in node.names:
-                module = alias.name.split(".")[0]
-                if module not in ALLOWED_MODULES:
-                    raise SecurityException(f"Disallowed import: {module}")
-
-        def visit_ImportFrom(self, node):
-            if node.module:
-                module = node.module.split(".")[0]
-                if module not in ALLOWED_MODULES:
-                    raise SecurityException(
-                        f"Disallowed import from: {module}"
-                    )
-
-    class SecurityVisitor(ast.NodeVisitor):
-        def generic_visit(self, node):
-            if isinstance(node, (ast.Call, ast.Attribute)):
-                if "system" in getattr(node, "attr", ""):
-                    raise SecurityException("Dangerous system call detected")
-            super().generic_visit(node)
-
-    try:
-        ImportVisitor().visit(tree)
-        SecurityVisitor().visit(tree)
-    except SecurityException:
-        raise
-    except Exception as e:
-        raise SecurityException(f"Security check failed: {e!s}")
-
-
-def secure_exec(code_str, result_path, input_files=None):
-    original_dir = os.getcwd()
-    original_stdout = sys.stdout
-    sys.stdout = captured_stdout = StringIO()
-    result_content = None
-
-    if input_files is None:
-        input_files = []
-
-    with tempfile.TemporaryDirectory() as temp_dir:
-        try:
-            os.chdir(temp_dir)
-
-            for file in input_files:
-                file_path = os.path.join(temp_dir, file["bind_at"])
-                os.makedirs(os.path.dirname(file_path), exist_ok=True)
-                with open(file_path, "wb") as f:
-                    f.write(file["content"])
-
-            restricted_globals = {
-                "__builtins__": {
-                    "open": open,
-                    "print": print,
-                    "str": str,
-                    "int": int,
-                    "float": float,
-                    "bool": bool,
-                    "list": list,
-                    "dict": dict,
-                    "tuple": tuple,
-                    "set": set,
-                }
-            }
-
-            exec(code_str, restricted_globals)
-
-            if result_path == "stdout":
-                result_content = captured_stdout.getvalue().encode("utf-8")
-            else:
-                with open(result_path, "rb") as f:
-                    result_content = f.read()
-
-        except Exception as e:
-            raise RuntimeError(f"Execution error: {e!s}")
-        finally:
-            os.chdir(original_dir)
-            sys.stdout = original_stdout
-
-    return result_content
-
-
-@app.task(bind=True)
-def analyze_data_task(
-    self, code_str, result_path, expected_file_link, submission_id, input_files=[]
-):
-    try:
-        validate_code(code_str)
-
-        result_content = secure_exec(code_str, result_path, input_files)
-
-        result_hash = hashlib.sha256(result_content).hexdigest()
-        expected_hash = hashlib.sha256(expected_bytes).hexdigest()
-
-        with contextlib.suppress(CompetitionTaskSubmission.DoesNotExist):
     submission = CompetitionTaskSubmission.objects.get(id=submission_id)
-            submission.result = {"correct": True}
+    try:
+        code = submission.content.read().decode()
+        files = [
+            (f.name, f.file.open("rb"))
+            for f in submission.task.attachments.filter(public=True)
+        ]
 
-        return {
-            "success": True,
-            "match": result_hash == expected_hash,
-            "result_hash": result_hash,
-            "expected_hash": expected_hash,
+        response = requests.post(
+            f"{settings.CHECKER_API_ENDPOINT}/execute",
+            files=[("files", (f.name, f)) for f in files]
+            + [
+                ("code", code),
+                ("expected_hash", submission.task.correct_answer_hash),
+            ],
+            timeout=30,
+        )
+        response.raise_for_status()
+        result = response.json()
+
+        submission.stdout.save("output.txt", ContentFile(result["output"]))
+        submission.result = {
+            "correct": result["hash_match"],
+            "result_hash": result["result_hash"],
+            "error": result.get("error"),
         }
+        submission.earned_points = (
+            submission.task.points if result["hash_match"] else 0
+        )
+        submission.status = CompetitionTaskSubmission.StatusChoices.CHECKED
 
-    except SecurityException as e:
-        return {"success": False, "error": f"Security violation: {e!s}"}
-    except RuntimeError as e:
-        return {"success": False, "error": f"Execution error: {e!s}"}
+    except requests.exceptions.RequestException as e:
+        self.retry(countdown=2**self.request.retries)
     except Exception as e:
-        return {"success": False, "error": f"Unexpected error: {e!s}"}
+        submission.result = {"error": str(e)}
+        submission.status = CompetitionTaskSubmission.StatusChoices.CHECKED
+        submission.earned_points = 0
+    finally:
+        submission.save()

services/backend/apps/task/tests/test_tasks.py

@@ -28,5 +28,3 @@ with open("file.txt") as f:
         print(result)
         self.assertTrue(result["success"])
         self.assertTrue(result["match"])
-    
-    

services/backend/apps/user/admin.py

@@ -7,3 +7,4 @@ from apps.user.models import User
 class UserAdmin(admin.ModelAdmin):
     list_display = ("email", "username")
     search_fields = ("id", "email", "username")
+    filter_horizontal = ("achievements",)

services/backend/apps/user/migrations/0002_user_achievements.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.6 on 2025-03-02 12:16
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('achievement', '0001_initial'),
+        ('user', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='achievements',
+            field=models.ManyToManyField(blank=True, to='achievement.achievement', verbose_name='ачивки пользователя'),
+        ),
+    ]

services/backend/apps/user/models.py

@@ -1,6 +1,7 @@
 from django.contrib.auth.hashers import check_password, make_password
 from django.db import models
 
+from apps.achievement.models import Achievement
 from apps.core.models import BaseModel
 
 
@@ -16,6 +17,10 @@ class User(BaseModel):
 
     created_at = models.DateTimeField(auto_now=True)
 
+    achievements = models.ManyToManyField(
+        Achievement, blank=True, verbose_name="ачивки пользователя"
+    )
+
     @staticmethod
     def make_password(password: str):
         return make_password(password)

services/backend/config/settings.py

@@ -7,7 +7,9 @@ from pathlib import Path
 
 import django_stubs_ext
 import environ
+from health_check.plugins import plugin_dir
 from django.utils.translation import gettext_lazy as _
+from integrations.checker.healthcheck import CheckerHealthCheck
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 
@@ -30,18 +32,12 @@ ALLOWED_HOSTS = env(
 
 # Integrations
 
-YANDEX_CLOUD_FOLDER_ID = env("YANDEX_CLOUD_FOLDER_ID", default=None)
-
-YANDEX_CLOUD_API_KEY = env("YANDEX_CLOUD_API_KEY", default=None)
-
-YANDEX_CLOUD_INTEGRATION_ENABLED = (
-    YANDEX_CLOUD_FOLDER_ID and YANDEX_CLOUD_API_KEY
-)
+CHECKER_API_ENDPOINT = env("CHECKER_API_ENDPOINT", default=None)
 
 
 # Register healthchecks
 
-# plugin_dir.register(SomeHealthCheckClass)
+plugin_dir.register(CheckerHealthCheck)
 
 
 # Caching
@@ -442,6 +438,7 @@ INSTALLED_APPS = [
     "ninja",
     "minio_storage",
     "tinymce",
+    "martor",
     # Internal apps
     "apps.core",
     "apps.user",
@@ -449,6 +446,7 @@ INSTALLED_APPS = [
     "apps.review",
     "apps.task",
     "apps.team",
+    "apps.achievement",
 ]
 
 # tinymce
@@ -458,15 +456,58 @@ TINYMCE_DEFAULT_CONFIG = {
     "menubar": False,
     "plugins": "advlist,autolink,lists,link,image,charmap,print,preview,anchor,"
     "searchreplace,visualblocks,code,fullscreen,insertdatetime,media,table,paste,"
-    "code,help,wordcount",
+    "code,help,wordcount,markdown",
     "toolbar": "undo redo | formatselect | "
     "bold italic backcolor | alignleft aligncenter "
     "alignright alignjustify | bullist numlist outdent indent | "
     "removeformat | help",
     "skin": "oxide-dark",
     "content_css": "dark",
+    "textpattern_patterns": [
+        {"start": "*", "end": "*", "format": "italic"},
+        {"start": "**", "end": "**", "format": "bold"},
+        {"start": "#", "format": "h1"},
+        {"start": "##", "format": "h2"},
+        {"start": "###", "format": "h3"},
+        {"start": "####", "format": "h4"},
+        {"start": "#####", "format": "h5"},
+        {"start": "######", "format": "h6"},
+        {"start": "1. ", "cmd": "InsertOrderedList"},
+        {"start": "* ", "cmd": "InsertUnorderedList"},
+        {"start": "- ", "cmd": "InsertUnorderedList"},
+    ],
 }
 
+# martor
+
+MARTOR_THEME = "bootstrap"
+
+MARTOR_ENABLE_CONFIGS = {
+    "emoji": "true",  # to enable/disable emoji icons.
+    "imgur": "true",  # to enable/disable imgur/custom uploader.
+    "mention": "false",  # to enable/disable mention
+    "jquery": "true",  # to include/revoke jquery (require for admin default django)
+    "living": "false",  # to enable/disable live updates in preview
+    "spellcheck": "false",  # to enable/disable spellcheck in form textareas
+    "hljs": "true",  # to enable/disable hljs highlighting in preview
+}
+
+MARTOR_TOOLBAR_BUTTONS = [
+    "bold",
+    "italic",
+    "horizontal",
+    "heading",
+    "pre-code",
+    "blockquote",
+    "unordered-list",
+    "ordered-list",
+    "link",
+    "emoji",
+    "direct-mention",
+    "toggle-maximize",
+    "help",
+]
+
 # GUID
 
 DJANGO_GUID = {

services/backend/config/urls.py

@@ -14,6 +14,8 @@ admin.site.index_title = "DataRush"
 urlpatterns = [
     # tinymce
     path("tinymce/", include("tinymce.urls")),
+    # martor
+    path("martor/", include("martor.urls")),
     # Admin urls
     path("admin/", admin.site.urls),
     # API urls

services/backend/integrations/checker/healthcheck.py

@@ -0,0 +1,22 @@
+from http import HTTPStatus as status
+
+import httpx
+from django.conf import settings
+from health_check.backends import BaseHealthCheckBackend
+
+
+class CheckerHealthCheck(BaseHealthCheckBackend):
+    critical_service = False
+
+    def check_status(self) -> None:
+        try:
+            response = httpx.get(
+                f"{settings.CHECKER_API_ENDPOINT}/ping", timeout=1
+            )
+            if response.status_code >= status.INTERNAL_SERVER_ERROR:
+                self.add_error("Checker service is unaccessible")
+        except httpx.HTTPError:
+            self.add_error("Checker service is unaccessible")
+
+    def identifier(self) -> str:
+        return self.__class__.__name__

services/backend/pyproject.toml

@@ -19,6 +19,7 @@ dependencies = [
  "django-tinymce>=4.1.0",
  "gunicorn>=23.0.0",
  "httpx>=0.28.1",
+ "martor>=1.6.45",
  "pillow>=11.1.0",
  "psycopg2-binary>=2.9.10",
  "pydantic>=2.10.5",

services/checker/.gitignore

@@ -0,0 +1,170 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/latest/usage/project/#working-with-version-control
+.pdm.toml
+.pdm-python
+.pdm-build/
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+.idea/
+
+# PyPI configuration file
+.pypirc
+
+# Ruff files
+.ruff_cache

services/checker/Dockerfile

@@ -0,0 +1,42 @@
+# Stage 1: Install dependencies
+FROM docker.io/python:3.11-alpine3.20 AS builder
+
+COPY --from=ghcr.io/astral-sh/uv:0.4.30 /uv /uvx /bin/
+
+WORKDIR /app
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PYTHONOPTIMIZE=2 \
+    UV_COMPILE_BYTECODE=1 \
+    UV_PROJECT_ENVIRONMENT=/opt/venv
+
+COPY pyproject.toml .
+
+RUN uv sync --no-dev --no-install-project --no-cache
+
+
+# Stage 2: Start the application
+FROM docker.io/python:3.11-alpine3.20
+
+WORKDIR /app
+
+COPY --from=builder /opt/venv /opt/venv
+
+COPY . .
+
+RUN adduser -D -g '' app && chown -R app:app ./
+
+USER app
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PYTHONOPTIMIZE=2 \
+    PATH="/opt/venv/bin:$PATH"
+
+EXPOSE 8080
+
+HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --start-interval=2s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://127.0.0.1:8000/ping || exit 1
+
+CMD uvicorn main:app --host 0.0.0.0 --port 8000

services/checker/Dockerfile.checker

@@ -0,0 +1,14 @@
+FROM docker.io/python:3.11-slim
+
+ENV PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY checker_requirements.txt .
+
+RUN pip install --no-cache-dir -r checker_requirements.txt
+
+CMD ["python"]

services/checker/README.md

@@ -0,0 +1,87 @@
+# DataRush Checker
+
+## Prerequisites
+
+Ensure you have the following installed on your system:
+
+- [Python](https://www.python.org/) (>=3.10,<3.12)
+- [uv](https://docs.astral.sh/uv/)
+- [Docker](https://www.docker.com/) (for containerized setup)
+
+## Basic setup
+
+### Installation
+
+#### Clone the project
+
+```bash
+git clone git@gitlab.prodcontest.ru:team-15/project.git
+```
+
+#### Go to the project directory
+
+```bash
+cd project/services/checker
+```
+
+#### Install dependencies
+
+##### For dev environment
+
+```bash
+uv sync --all-extras
+```
+
+##### For prod environment
+
+```bash
+uv sync --no-dev
+```
+
+#### Running
+
+##### Apply migrations
+
+```bash
+uv run python manage.py migrate
+```
+
+##### Start celery worker
+
+```bash
+celery -A config worker -l INFO
+```
+
+##### Start server
+
+In dev mode:
+
+```bash
+uv run python manage.py runserver
+```
+
+In prod mode:
+
+```bash
+uv run gunicorn config.wsgi
+```
+
+## Containerized setup
+
+### Clone the project
+
+```bash
+git clone git@gitlab.prodcontest.ru:team-15/project.git
+```
+
+### Go to the project directory
+
+```bash
+cd project/services/checker
+```
+
+### Build docker image
+
+```bash
+docker build -t datarush-checker .
+```

services/checker/checker_requirements.txt

@@ -0,0 +1,7 @@
+pandas==2.2.3
+numpy==2.2.3
+matplotlib==3.10.1
+scipy==1.15.2
+scikit-learn==1.6.1
+seaborn==0.13.2
+statsmodels==0.14.4

services/checker/main.py

@@ -0,0 +1,289 @@
+from fastapi import FastAPI, HTTPException, status
+from pydantic import BaseModel, Field, HttpUrl, constr
+import aiohttp
+import asyncio
+import docker
+import hashlib
+import os
+import base64
+import tempfile
+import logging
+from urllib.parse import urlparse
+import re
+
+app = FastAPI()
+docker_client = docker.from_env()
+logger = logging.getLogger(__name__)
+logging.basicConfig(level=logging.INFO)
+
+
+DOCKER_IMAGE = "gitlab.python:3-slim"
+CONTAINER_TIMEOUT = 60
+MAX_FILE_SIZE = 4 * 1024 * 1024
+ALLOWED_FILENAME_CHARS = r"[^a-zA-Z0-9_\-.]"
+
+
+class FileDetails(BaseModel):
+    url: HttpUrl = Field(
+        ..., description="URL to download the file from (supports HTTP/HTTPS)"
+    )
+    bind_path: str = Field(
+        ...,
+        description="Container path to bind the file (absolute)",
+    )
+
+
+class ExecutionRequest(BaseModel):
+    code: str = Field(..., description="Base64 encoded Python code to execute")
+    answer_file_path: str = Field(
+        "stdout", description="Base64 encoded path to result file or 'stdout'"
+    )
+    expected_hash: str | None = Field(
+        None, description="Optional SHA-256 hash of expected output"
+    )
+    files: list[FileDetails] = Field(
+        [], description="List of files to mount in container"
+    )
+
+
+class ExecutionResponse(BaseModel):
+    success: bool = Field(..., description="Execution success status")
+    hash_match: bool | None = Field(
+        None, description="Output hash matches expected (if provided)"
+    )
+    output: str = Field(..., description="Captured stdout or file contents")
+    result_hash: str = Field(..., description="SHA-256 hash of output")
+    error: str = Field(..., description="Execution errors or stderr")
+
+
+class HealthCheckResponse(BaseModel):
+    status: str = Field(..., description="Service health status")
+    docker: str = Field(..., description="Docker daemon status")
+
+
+def decode_base64(encoded_str: str, field_name: str) -> str:
+    try:
+        return base64.b64decode(encoded_str).decode("utf-8")
+    except Exception as e:
+        logger.error(f"Base64 decode failed for {field_name}: {str(e)}")
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"Invalid Base64 in {field_name}",
+        )
+
+
+def sanitize_filename(url: str) -> str:
+    parsed = urlparse(url)
+    base_name = os.path.basename(parsed.path)
+
+    if not base_name:
+        base_name = "file"
+
+    clean = re.sub(ALLOWED_FILENAME_CHARS, "", base_name)[:255]
+    return clean or "file"
+
+
+async def download_file(
+    session: aiohttp.ClientSession, url: str, dest_path: str
+) -> None:
+    try:
+        async with session.get(
+            url, timeout=aiohttp.ClientTimeout(total=30)
+        ) as resp:
+            if resp.status != 200:
+                raise HTTPException(
+                    status_code=status.HTTP_400_BAD_REQUEST,
+                    detail=f"Failed to download {url} - Status {resp.status}",
+                )
+
+            content = b""
+            async for chunk in resp.content.iter_chunked(8192):
+                content += chunk
+                if len(content) > MAX_FILE_SIZE:
+                    raise HTTPException(
+                        status_code=status.HTTP_413_REQUEST_ENTITY_TOO_LARGE,
+                        detail="File size exceeds 4MB limit",
+                    )
+
+            with open(dest_path, "wb") as f:
+                f.write(content)
+            logger.info(f"Downloaded {url} to {dest_path}")
+
+    except aiohttp.ClientError as e:
+        logger.error(f"Download error for {url}: {str(e)}")
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=f"Download failed: {str(e)}",
+        )
+
+
+def run_container_safely(
+    tmp_dir: str,
+    command: list[str],
+    bound_files: dict[str, str],
+    timeout: int = CONTAINER_TIMEOUT,
+) -> dict:
+    container = None
+    try:
+        volumes = {tmp_dir: {"bind": "/execution", "mode": "rw"}}
+        for host_path, container_path in bound_files.items():
+            volumes[host_path] = {"bind": container_path, "mode": "ro"}
+
+        container = docker_client.containers.run(
+            image=DOCKER_IMAGE,
+            command=command,
+            volumes=volumes,
+            working_dir="/execution",
+            stdout=True,
+            stderr=True,
+            detach=True,
+            mem_limit="100m",
+            network_mode="none",
+            cpu_period=100000,
+            cpu_quota=50000,
+            user="root",
+            security_opt=["no-new-privileges"],
+        )
+
+        exit_code = container.wait(timeout=timeout)["StatusCode"]
+        stdout = container.logs(stdout=True, stderr=False).decode().strip()
+        stderr = container.logs(stdout=False, stderr=True).decode().strip()
+
+        return {"stdout": stdout, "stderr": stderr, "status": exit_code}
+
+    except docker.errors.DockerException as e:
+        logger.error(f"Docker error: {str(e)}")
+        return {
+            "stdout": "",
+            "stderr": f"Container error: {str(e)}",
+            "status": -1,
+        }
+    finally:
+        if container:
+            try:
+                container.remove(force=True)
+            except docker.errors.DockerException:
+                pass
+
+
+@app.post("/execute", response_model=ExecutionResponse)
+async def execute_code(request: ExecutionRequest) -> ExecutionResponse:
+    try:
+        code = decode_base64(request.code, "code")
+        answer_path = (
+            decode_base64(request.answer_file_path, "answer_file_path")
+            if request.answer_file_path != "stdout"
+            else "stdout"
+        )
+    except HTTPException as e:
+        return ExecutionResponse(
+            success=False,
+            output="",
+            result_hash="",
+            error=e.detail,
+            hash_match=None,
+        )
+
+    if answer_path != "stdout":
+        if os.path.isabs(answer_path) or not validate_file_path(answer_path):
+            return ExecutionResponse(
+                success=False,
+                output="",
+                result_hash="",
+                error="Invalid answer file path",
+                hash_match=None,
+            )
+
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        bound_files = {}
+        if request.files:
+            async with aiohttp.ClientSession() as session:
+                download_tasks = []
+                for file in request.files:
+                    filename = sanitize_filename(str(file.url))
+                    dest_path = os.path.join(tmp_dir, filename)
+                    bound_files[dest_path] = file.bind_path
+                    download_tasks.append(
+                        download_file(session, str(file.url), dest_path)
+                    )
+
+                try:
+                    await asyncio.gather(*download_tasks)
+                except HTTPException as e:
+                    return ExecutionResponse(
+                        success=False,
+                        output="",
+                        result_hash="",
+                        error=e.detail,
+                        hash_match=None,
+                    )
+
+        code_path = os.path.join(tmp_dir, "submission.py")
+        with open(code_path, "w") as f:
+            f.write(code)
+        os.chmod(code_path, 0o444)
+
+        if answer_path == "stdout":
+            cmd = ["python", "submission.py"]
+        else:
+            cmd = [
+                "sh",
+                "-c",
+                f"python submission.py && cat {answer_path} || echo 'EXECUTION_FAILED'",
+            ]
+
+        try:
+            result = await asyncio.to_thread(
+                run_container_safely,
+                tmp_dir,
+                cmd,
+                bound_files,
+                CONTAINER_TIMEOUT,
+            )
+        except Exception as e:
+            logger.error(f"Container execution failed: {str(e)}")
+            return ExecutionResponse(
+                success=False,
+                output="",
+                result_hash="",
+                error=f"Execution failed: {str(e)}",
+                hash_match=None,
+            )
+
+        output = result["stdout"]
+        error = result["stderr"]
+        success = result["status"] == 0
+
+        if answer_path != "stdout" and not output:
+            error += "\nNo output captured - check answer file path"
+
+        result_hash = hashlib.sha256(output.encode()).hexdigest()
+
+        return ExecutionResponse(
+            success=success,
+            hash_match=(
+                result_hash == request.expected_hash
+                if request.expected_hash
+                else None
+            ),
+            output=output[:5000],
+            result_hash=result_hash,
+            error=error[:5000],
+        )
+
+
+@app.get("/health", response_model=HealthCheckResponse)
+async def health_check() -> HealthCheckResponse:
+    try:
+        docker_client.ping()
+        return HealthCheckResponse(status="healthy", docker="connected")
+    except docker.errors.DockerException:
+        return HealthCheckResponse(status="degraded", docker="unavailable")
+
+
+def validate_file_path(path: str) -> bool:
+    return (
+        not os.path.isabs(path)
+        and os.path.basename(path) == path
+        and all(c.isalnum() or c in {"_", "-", "."} for c in path)
+    )

services/checker/pyproject.toml

@@ -0,0 +1,13 @@
+[project]
+name = "checker"
+version = "0.1.0"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = [
+    "aiohttp>=3.11.13",
+    "docker>=7.1.0",
+    "fastapi>=0.115.11",
+    "python-multipart>=0.0.20",
+    "regex>=2024.11.6",
+    "uvicorn>=0.34.0",
+]

services/checker/scripts/check

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+GREEN='\033[1;32m'
+NC='\033[0m'
+
+uvx ruff format .
+uvx ruff check . --fix
+printf "${GREEN}Linters/formatters runned${NC}\n"

services/frontend/src/App.tsx

@@ -10,7 +10,6 @@ import LoginPage from "./pages/Login";
 import { AuthLayout } from "./widgets/auth-layout";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import ReviewPage from "./pages/Review";
-import CompetitionConstructor from "./pages/CompetitionConstructor";
 import UserProfile from "./pages/UserProfile";
 
 const queryClient = new QueryClient();
@@ -32,15 +31,6 @@ const App = () => {
             element={<CompetitionSession />}
           />
 
-          <Route path="/constructor/:id" element={<CompetitionConstructor />} />
-
-          <Route path="/constructor/new" element={<CompetitionConstructor />} />
-
-          <Route
-            path="/constructor/:id/tasks/:taskId"
-            element={<CompetitionConstructor />}
-          />
-
           <Route path="/profile" element={<UserProfile />} />
         </Route>
 

services/frontend/src/pages/Competition/index.tsx

@@ -2,38 +2,56 @@ import { useParams, Link, useNavigate } from "react-router-dom";
 import { Button } from "@/components/ui/button";
 import { ArrowLeft } from "lucide-react";
 import ReactMarkdown from "react-markdown";
-import { mockTasks } from "@/shared/mocks/mocks";
-import { useQuery } from "@tanstack/react-query";
-import { getCompetition } from "@/shared/api/competitions";
+import { useQuery, useMutation } from "@tanstack/react-query";
+import { getCompetition, startCompetition } from "@/shared/api/competitions";
+import { getCompetitionTasks } from "@/shared/api/session";
 import { Loading } from "@/components/ui/loading";
 
 const CompetitionPage = () => {
   const { id } = useParams<{ id: string }>();
   const navigate = useNavigate();
+  const competitionId = id || "";
 
-  const { data: competition, isLoading } = useQuery({
-    queryKey: ["competition", id],
-    queryFn: async () => getCompetition(id || ""),
+  const competitionQuery = useQuery({
+    queryKey: ["competition", competitionId],
+    queryFn: () => getCompetition(competitionId),
+    enabled: !!competitionId,
   });
 
-  if (isLoading) {
+  const startMutation = useMutation({
+    mutationFn: () => startCompetition(competitionId),
+    onSuccess: async () => {
+      try {
+        const tasks = await getCompetitionTasks(competitionId);
+        
+        if (tasks && tasks.length > 0) {
+          navigate(`/competition/${competitionId}/tasks/${tasks[0].id}`);
+        } else {
+          navigate(`/competition/${competitionId}/tasks`);
+        }
+      } catch (error) {
+        console.error("Failed to fetch tasks:", error);
+        navigate(`/competition/${competitionId}/tasks`);
+      }
+    },
+    onError: (error) => {
+      console.error("Failed to start competition:", error);
+    }
+  });
+
+  const handleStart = () => {
+    startMutation.mutate();
+  };
+
+  if (competitionQuery.isLoading) {
     return <Loading />;
   }
 
-  if (!id || !competition) {
+  if (!competitionId || !competitionQuery.data) {
     return <></>;
   }
 
-  const handleContinue = () => {
-    if (competition?.id) {
-      if (mockTasks && mockTasks.length > 0) {
-        const firstTaskId = mockTasks[0].id;
-        navigate(`/competition/${competition.id}/tasks/${firstTaskId}`);
-      } else {
-        navigate(`/competition/${competition.id}/tasks`);
-      }
-    }
-  };
+  const competition = competitionQuery.data;
 
   return (
     <div className="flex flex-col gap-4">
@@ -46,15 +64,13 @@ const CompetitionPage = () => {
       </Link>
 
       <div className="flex flex-col gap-6">
-        {competition.image_url && (
         <div className="aspect-2 h-auto w-full overflow-hidden rounded-xl">
           <img
-              src={competition.image_url}
+            src={competition.image_url ? competition.image_url : '/DANO.png'}
             alt={competition.title}
             className="h-full w-full object-cover object-center"
           />
         </div>
-        )}
 
         <div className="flex flex-col-reverse gap-8 md:flex-row">
           <div className="flex flex-1 flex-col gap-5">
@@ -66,8 +82,12 @@ const CompetitionPage = () => {
             </div>
           </div>
           <div className="w-full *:w-full md:w-96">
-            <Button size={"lg"} onClick={handleContinue}>
-              Продолжить
+            <Button 
+              size={"lg"} 
+              onClick={handleStart} 
+              disabled={startMutation.isPending}
+            >
+              {startMutation.isPending ? "Загрузка..." : "Приступить к выполнению"}
             </Button>
           </div>
         </div>

services/frontend/src/pages/CompetitionConstructor/components/ConstructorHeader/index.tsx

@@ -1,63 +0,0 @@
-import React from 'react';
-import { Link } from 'react-router-dom';
-import { Task } from "@/shared/types";
-import { Settings, Plus } from 'lucide-react';
-import { Button } from "@/components/ui/button";
-
-interface ConstructorHeaderProps {
-  title: string;
-  tasks: Task[];
-  competitionId: string;
-  onAddTaskClick: () => void;
-}
-
-const ConstructorHeader: React.FC<ConstructorHeaderProps> = ({ 
-  title,
-  tasks, 
-  competitionId,
-  onAddTaskClick
-}) => {
-  return (
-    <header className="bg-white shadow-sm sticky top-0 z-30 w-full">
-      <div className="mx-auto max-w-6xl px-4">
-        <div className="py-4 text-center">
-          <h1 className="font-hse-sans text-xl font-semibold">
-            {title}
-          </h1>
-        </div>
-        
-        <div className="flex items-center justify-center gap-4 pb-4 overflow-x-auto no-scrollbar">
-          <Link
-            to={`/constructor/${competitionId}/tasks/settings`}
-            className="bg-gray-100 text-gray-700 rounded-lg px-3 py-1.5 font-medium text-sm font-hse-sans cursor-pointer 
-              transition-all hover:bg-gray-200 flex-shrink-0 flex items-center"
-          >
-            <Settings size={16} className="mr-1" />
-          </Link>
-          
-          {tasks.map((task) => (
-            <Link
-              key={task.id}
-              to={`/constructor/${competitionId}/tasks/${task.id}`}
-              className="bg-blue-100 text-blue-700 rounded-lg px-3 py-1.5 font-medium text-sm font-hse-sans cursor-pointer 
-                transition-all hover:bg-blue-200 flex-shrink-0"
-            >
-              {task.number}
-            </Link>
-          ))}
-          
-          <Button
-            variant="ghost"
-            size="sm"
-            className="rounded-lg flex items-center px-2 h-8"
-            onClick={onAddTaskClick}
-          >
-            <Plus size={18} />
-          </Button>
-        </div>
-      </div>
-    </header>
-  );
-};
-
-export default ConstructorHeader;

services/frontend/src/pages/CompetitionConstructor/index.tsx

@@ -1,89 +0,0 @@
-import { useState } from "react";
-import { useParams, Navigate, useNavigate } from "react-router-dom";
-import { Task, TaskStatus } from "@/shared/types";
-import ConstructorHeader from "./components/ConstructorHeader";
-import TaskCreationModal from "./modules/TaskCreationModal";
-
-const CompetitionConstructor = () => {
-  const { id, taskId } = useParams<{ id: string; taskId?: string }>();
-  const navigate = useNavigate();
-  const [competitionTitle, setCompetitionTitle] = useState("Новая олимпиада");
-  const [tasks, setTasks] = useState<Task[]>([]);
-  const [isTaskModalOpen, setIsTaskModalOpen] = useState(false);
-  
-  const isSettings = taskId === "settings";
-  
-  const handleOpenTaskModal = () => {
-    setIsTaskModalOpen(true);
-  };
-  
-  const handleCloseTaskModal = () => {
-    setIsTaskModalOpen(false);
-  };
-  
-  const handleCreateTask = (taskData: Partial<Task>) => {
-    const newTask: Task = {
-      id: `task-${Date.now()}`,
-      number: taskData.number || `${tasks.length + 1}`,
-      status: TaskStatus.Uncleared,
-      solutionType: taskData.solutionType || "input",
-      description: taskData.description || "",
-      requirements: taskData.requirements,
-      attachments: taskData.attachments || []
-    };
-    
-    setTasks([...tasks, newTask]);
-    setIsTaskModalOpen(false);
-    navigate(`/constructor/${id}/tasks/${newTask.id}`);
-  };
-  
-  if (!taskId) {
-    if (tasks.length > 0) {
-      return <Navigate to={`/constructor/${id}/tasks/${tasks[0].id}`} replace />;
-    } else {
-      return <Navigate to={`/constructor/${id}/tasks/settings`} replace />;
-    }
-  }
-
-  return (
-    <div className="flex flex-col min-h-screen">
-      <ConstructorHeader 
-        title={competitionTitle}
-        tasks={tasks} 
-        competitionId={id || ""}
-        onAddTaskClick={handleOpenTaskModal}
-      />
-      
-      <TaskCreationModal 
-        isOpen={isTaskModalOpen}
-        onClose={handleCloseTaskModal}
-        onCreateTask={handleCreateTask}
-        taskCount={tasks.length}
-      />
-      
-      <main className="flex-1 bg-[#F8F8F8] pb-8">
-        <div className="max-w-6xl mx-auto px-4 py-6">
-          {isSettings ? (
-            <div className="bg-white rounded-lg p-6 shadow-sm">
-              <h2 className="text-2xl font-semibold mb-6 font-hse-sans">Настройки олимпиады</h2>
-              <p className="text-gray-500 font-hse-sans">
-                Здесь будет форма настроек олимпиады
-              </p>
-            </div>
-          ) : (
-            <div className="bg-white rounded-lg p-6 shadow-sm">
-              <h2 className="text-2xl font-semibold mb-6 font-hse-sans">
-                {`Редактирование задачи ${tasks.find(t => t.id === taskId)?.number || ""}`}
-              </h2>
-              <p className="text-gray-500 font-hse-sans">
-                Здесь будет форма редактирования задачи
-              </p>
-            </div>
-          )}
-        </div>
-      </main>
-    </div>
-  );
-};
-
-export default CompetitionConstructor;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/components/TaskDescriptionField/index.tsx

@@ -1,27 +0,0 @@
-import React from 'react';
-import { Textarea } from "@/components/ui/textarea";
-import { Label } from "@/components/ui/label";
-
-interface TaskDescriptionFieldProps {
-  description: string;
-  onChange: (value: string) => void;
-}
-
-const TaskDescriptionField: React.FC<TaskDescriptionFieldProps> = ({ description, onChange }) => {
-  return (
-    <div className="grid grid-cols-4 items-start gap-4">
-      <Label htmlFor="description" className="text-right pt-2">
-        Описание
-      </Label>
-      <Textarea
-        id="description"
-        value={description}
-        onChange={(e) => onChange(e.target.value)}
-        className="col-span-3 min-h-[100px]"
-        placeholder="Введите описание задачи"
-      />
-    </div>
-  );
-};
-
-export default TaskDescriptionField;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/components/TaskFileAttachments/index.tsx

@@ -1,92 +0,0 @@
-import React from 'react';
-import { FileIcon, X, Upload } from 'lucide-react';
-import { Button } from "@/components/ui/button";
-import { Label } from "@/components/ui/label";
-
-interface TaskFileAttachmentsProps {
-  files: File[];
-  onChange: (files: File[]) => void;
-}
-
-const TaskFileAttachments: React.FC<TaskFileAttachmentsProps> = ({ files, onChange }) => {
-  const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-    if (e.target.files) {
-      const newFiles = Array.from(e.target.files);
-      onChange([...files, ...newFiles]);
-    }
-  };
-  
-  const removeFile = (index: number) => {
-    onChange(files.filter((_, i) => i !== index));
-  };
-  
-  return (
-    <div className="grid grid-cols-4 items-start gap-4">
-      <Label className="text-right pt-2">
-        Файлы
-      </Label>
-      <div className="col-span-3">
-        <div className="flex flex-col gap-2">
-          {files.map((file, index) => (
-            <FileListItem 
-              key={index} 
-              file={file} 
-              onRemove={() => removeFile(index)} 
-            />
-          ))}
-          
-          <FileUploadButton onChange={handleFileChange} />
-        </div>
-      </div>
-    </div>
-  );
-};
-
-interface FileListItemProps {
-  file: File;
-  onRemove: () => void;
-}
-
-const FileListItem: React.FC<FileListItemProps> = ({ file, onRemove }) => {
-  return (
-    <div className="flex items-center justify-between p-2 border rounded-md">
-      <div className="flex items-center">
-        <FileIcon size={16} className="mr-2 text-gray-500" />
-        <span className="text-sm">{file.name}</span>
-        <span className="text-xs text-gray-500 ml-2">
-          ({Math.round(file.size / 1024)} KB)
-        </span>
-      </div>
-      <Button 
-        variant="ghost" 
-        size="sm" 
-        onClick={onRemove}
-      >
-        <X size={16} />
-      </Button>
-    </div>
-  );
-};
-
-interface FileUploadButtonProps {
-  onChange: (e: React.ChangeEvent<HTMLInputElement>) => void;
-}
-
-const FileUploadButton: React.FC<FileUploadButtonProps> = ({ onChange }) => {
-  return (
-    <label className="cursor-pointer">
-      <div className="flex items-center gap-2 p-2 border border-dashed rounded-md hover:bg-gray-50 transition-colors">
-        <Upload size={16} className="text-gray-500" />
-        <span className="text-sm text-gray-700">Добавить файлы</span>
-      </div>
-      <input 
-        type="file" 
-        className="hidden" 
-        onChange={onChange}
-        multiple
-      />
-    </label>
-  );
-};
-
-export default TaskFileAttachments;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/components/TaskNumberField/index.tsx

@@ -1,26 +0,0 @@
-import React from 'react';
-import { Input } from "@/components/ui/input";
-import { Label } from "@/components/ui/label";
-
-interface TaskNumberFieldProps {
-  number: string;
-  onChange: (value: string) => void;
-}
-
-const TaskNumberField: React.FC<TaskNumberFieldProps> = ({ number, onChange }) => {
-  return (
-    <div className="grid grid-cols-4 items-center gap-4">
-      <Label htmlFor="task-number" className="text-right">
-        Номер задачи
-      </Label>
-      <Input
-        id="task-number"
-        value={number}
-        onChange={(e) => onChange(e.target.value)}
-        className="col-span-3"
-      />
-    </div>
-  );
-};
-
-export default TaskNumberField;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/components/TaskRequirementsField/index.tsx

@@ -1,27 +0,0 @@
-import React from 'react';
-import { Textarea } from "@/components/ui/textarea";
-import { Label } from "@/components/ui/label";
-
-interface TaskRequirementsFieldProps {
-  requirements: string;
-  onChange: (value: string) => void;
-}
-
-const TaskRequirementsField: React.FC<TaskRequirementsFieldProps> = ({ requirements, onChange }) => {
-  return (
-    <div className="grid grid-cols-4 items-start gap-4">
-      <Label htmlFor="requirements" className="text-right pt-2">
-        Требования
-      </Label>
-      <Textarea
-        id="requirements"
-        value={requirements}
-        onChange={(e) => onChange(e.target.value)}
-        className="col-span-3"
-        placeholder="Введите требования к решению (необязательно)"
-      />
-    </div>
-  );
-};
-
-export default TaskRequirementsField;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/components/TaskSolutionTypeSelector/index.tsx

@@ -1,41 +0,0 @@
-import React from 'react';
-import { 
-  RadioGroup, 
-  RadioGroupItem 
-} from "@/components/ui/radio-group";
-import { Label } from "@/components/ui/label";
-
-interface TaskSolutionTypeSelectorProps {
-  solutionType: 'input' | 'file' | 'code';
-  onChange: (value: 'input' | 'file' | 'code') => void;
-}
-
-const TaskSolutionTypeSelector: React.FC<TaskSolutionTypeSelectorProps> = ({ solutionType, onChange }) => {
-  return (
-    <div className="grid grid-cols-4 items-start gap-4">
-      <Label className="text-right pt-2">
-        Тип решения
-      </Label>
-      <RadioGroup 
-        className="col-span-3" 
-        value={solutionType} 
-        onValueChange={(value) => onChange(value as 'input' | 'file' | 'code')}
-      >
-        <div className="flex items-center space-x-2">
-          <RadioGroupItem value="input" id="input" />
-          <Label htmlFor="input">Ввод ответа</Label>
-        </div>
-        <div className="flex items-center space-x-2">
-          <RadioGroupItem value="file" id="file" />
-          <Label htmlFor="file">Загрузка файла</Label>
-        </div>
-        <div className="flex items-center space-x-2">
-          <RadioGroupItem value="code" id="code" />
-          <Label htmlFor="code">Программный код</Label>
-        </div>
-      </RadioGroup>
-    </div>
-  );
-};
-
-export default TaskSolutionTypeSelector;

services/frontend/src/pages/CompetitionConstructor/modules/TaskCreationModal/index.tsx

@@ -1,101 +0,0 @@
-import React, { useState } from 'react';
-import { 
-  Dialog, 
-  DialogContent, 
-  DialogHeader, 
-  DialogTitle, 
-  DialogFooter 
-} from "@/components/ui/dialog";
-import { Button } from "@/components/ui/button";
-import { Task } from "@/shared/types";
-import TaskNumberField from './components/TaskNumberField';
-import TaskDescriptionField from './components/TaskDescriptionField';
-import TaskRequirementsField from './components/TaskRequirementsField';
-import TaskSolutionTypeSelector from './components/TaskSolutionTypeSelector';
-import TaskFileAttachments from './components/TaskFileAttachments';
-
-interface TaskCreationModalProps {
-  isOpen: boolean;
-  onClose: () => void;
-  onCreateTask: (task: Partial<Task>) => void;
-  taskCount: number;
-}
-
-const TaskCreationModal: React.FC<TaskCreationModalProps> = ({
-  isOpen,
-  onClose,
-  onCreateTask,
-  taskCount
-}) => {
-  const [number, setNumber] = useState(`${taskCount + 1}`);
-  const [description, setDescription] = useState('');
-  const [requirements, setRequirements] = useState('');
-  const [solutionType, setSolutionType] = useState<'input' | 'file' | 'code'>('input');
-  const [attachedFiles, setAttachedFiles] = useState<File[]>([]);
-  
-  const handleSubmit = () => {
-    const newTask: Partial<Task> = {
-      number,
-      description,
-      requirements: requirements || undefined,
-      solutionType,
-      attachments: attachedFiles.map(file => file.name)
-    };
-    
-    onCreateTask(newTask);
-    
-    setNumber(`${taskCount + 1}`);
-    setDescription('');
-    setRequirements('');
-    setSolutionType('input');
-    setAttachedFiles([]);
-  };
-  
-  return (
-    <Dialog open={isOpen} onOpenChange={onClose}>
-      <DialogContent className="sm:max-w-[600px] font-hse-sans">
-        <DialogHeader>
-          <DialogTitle className="text-xl">Создание новой задачи</DialogTitle>
-        </DialogHeader>
-        
-        <div className="grid gap-4 py-4">
-          <TaskNumberField 
-            number={number} 
-            onChange={setNumber} 
-          />
-          
-          <TaskDescriptionField 
-            description={description} 
-            onChange={setDescription} 
-          />
-          
-          <TaskRequirementsField 
-            requirements={requirements} 
-            onChange={setRequirements} 
-          />
-          
-          <TaskSolutionTypeSelector 
-            solutionType={solutionType} 
-            onChange={setSolutionType} 
-          />
-          
-          <TaskFileAttachments 
-            files={attachedFiles} 
-            onChange={setAttachedFiles} 
-          />
-        </div>
-        
-        <DialogFooter>
-          <Button type="button" variant="outline" onClick={onClose}>
-            Отмена
-          </Button>
-          <Button type="button" onClick={handleSubmit}>
-            Создать задачу
-          </Button>
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-  );
-};
-
-export default TaskCreationModal;

services/frontend/src/pages/CompetitionSession/components/CompetitionHeader/index.tsx

@@ -1,7 +1,6 @@
 import React from 'react';
 import { Link } from 'react-router-dom';
-import { Task } from "@/shared/types";
-import { getTaskBgColor, getTaskTextColor } from '../../utils/utils';
+import { Task } from '@/shared/types/task';
 
 interface CompetitionHeaderProps {
   title: string;
@@ -28,12 +27,12 @@ const CompetitionHeader: React.FC<CompetitionHeaderProps> = ({
             <Link
               key={task.id}
               to={`/competition/${competitionId}/tasks/${task.id}`}
-              className={`${getTaskBgColor(task.status)} ${getTaskTextColor(task.status)} 
+              className={`text-[var(--color-task-text-uncleared)] bg-[var(--color-task-uncleared)]
                 rounded-lg px-3 py-1.5 font-medium text-sm font-hse-sans cursor-pointer 
                 transition-all hover:brightness-95 flex-shrink-0
                 `}
             >
-              {task.number}
+              {task.in_competition_position}
             </Link>
           ))}
         </div>

services/frontend/src/pages/CompetitionSession/components/TaskContent/index.tsx

@@ -3,53 +3,78 @@ import ReactMarkdown from 'react-markdown';
 import remarkMath from 'remark-math';
 import rehypeKatex from 'rehype-katex';
 import 'katex/dist/katex.min.css';
-import { Task } from "@/shared/types";
+import { Task } from '@/shared/types/task';
+import { useQuery } from '@tanstack/react-query';
+import { getTaskAttachments } from '@/shared/api/session';
+import { FileIcon, Loader2 } from 'lucide-react';
+import { useParams } from 'react-router-dom';
 
 interface TaskContentProps {
   task: Task;
 }
 
 const TaskContent: React.FC<TaskContentProps> = ({ task }) => {
-  const markdownContent = `
-## Задача на числовую последовательность
+  const { id: competitionId } = useParams<{ id: string }>();
 
-Рассмотрим последовательность чисел: 
-\`2, 3, 5, 9, 17, 33, 65, 129, ...\`
+  const attachmentsQuery = useQuery({
+    queryKey: ['taskAttachments', competitionId, task.id],
+    queryFn: () => getTaskAttachments(competitionId || '', task.id),
+    enabled: !!(competitionId && task.id),
+  });
 
-Каждый член этой последовательности, **начиная с третьего**, равен сумме двух предыдущих членов:
-- $a_1 = 2$
-- $a_2 = 3$
-- $a_n = a_{n-1} + a_{n-2}$ для всех $n ≥ 3$
-
-### Задание:
-Найдите сумму первых 15 членов этой последовательности.
-
-*Примечание:* Для решения задачи вам может быть полезно записать несколько первых членов последовательности:
-1. $a_1 = 2$
-2. $a_2 = 3$
-3. $a_3 = 3 + 2 = 5$
-4. $a_4 = 5 + 3 = 8$
-5. $a_5 = 8 + 5 = 13$
-
-**В ответе укажите целое число.**
-  `;
+  const attachments = attachmentsQuery.data || [];
 
   return (
     <div className="flex-1 bg-white rounded-lg p-6">
       <h2 className="text-3xl font-semibold mb-6 font-hse-sans">
-        Задача {task.number}
+        Задача {task.in_competition_position}
       </h2>
       
-      <div className="prose prose-lg max-w-none text-gray-700 font-hse-sans">
+      <div className="prose prose-lg max-w-none text-gray-700 font-hse-sans mb-6">
         <ReactMarkdown
           remarkPlugins={[remarkMath]}
           rehypePlugins={[rehypeKatex]}
         >
-          {markdownContent}
+          {task.description}
         </ReactMarkdown>
       </div>
+
+      {attachmentsQuery.isLoading ? (
+        <div className="flex items-center justify-center py-4">
+          <Loader2 className="h-5 w-5 animate-spin text-gray-400 mr-2" />
+          <span className="text-gray-500 font-hse-sans">Загрузка файлов...</span>
+        </div>
+      ) : attachments.length > 0 ? (
+        <div className="mt-6">
+          <h3 className="text-lg font-semibold mb-3 font-hse-sans">Прикрепленные файлы</h3>
+          <div className="flex flex-col gap-2">
+            {attachments.map((attachment) => (
+              <a 
+                key={attachment.id}
+                href={attachment.file}
+                download
+                className="flex items-center p-3 border rounded-md hover:bg-gray-50 transition-colors"
+              >
+                <FileIcon size={18} className="text-blue-500 mr-2" />
+                <span className="font-hse-sans">
+                  {getFileNameFromUrl(attachment.file)}
+                </span>
+              </a>
+            ))}
+          </div>
+        </div>
+      ) : null}
     </div>
   );
 };
 
+const getFileNameFromUrl = (url: string): string => {
+  try {
+    const parts = url.split('/');
+    return parts[parts.length - 1];
+  } catch (e) {
+    return 'Файл';
+  }
+};
+
 export default TaskContent;

services/frontend/src/pages/CompetitionSession/index.tsx

@@ -1,45 +1,41 @@
-import { useState, useEffect } from "react";
+import { useState } from "react";
 import { useParams, Navigate } from "react-router-dom";
-import { Task, TaskStatus } from "@/shared/types";
-import { mockSolutions } from "@/shared/mocks/mocks"; // Keep mocks for solutions for now
 import CompetitionHeader from "./components/CompetitionHeader";
 import TaskContent from "./components/TaskContent";
 import TaskSolution from "./modules/TaskSolution";
-import { getCompetitionTasks } from "@/shared/api/session";
+import { getCompetitionTasks, submitTaskSolution } from "@/shared/api/session";
 import { Loader2 } from "lucide-react";
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
 
 const CompetitionSession = () => {
   const { id, taskId } = useParams<{ id: string; taskId?: string }>();
-  const [tasks, setTasks] = useState<Task[]>([]);
   const [answer, setAnswer] = useState("");
-  const [loading, setLoading] = useState(true);
-  const [error, setError] = useState<string | null>(null);
-
   const competitionId = id || "";
+  const queryClient = useQueryClient();
 
-  useEffect(() => {
-    const fetchTasks = async () => {
-      try {
-        setLoading(true);
-        const fetchedTasks = await getCompetitionTasks(competitionId);
-        setTasks(fetchedTasks);
-        setError(null);
-      } catch (err) {
-        console.error("Failed to fetch tasks:", err);
-        setError("Не удалось загрузить задания. Пожалуйста, попробуйте позже.");
-      } finally {
-        setLoading(false);
-      }
-    };
+  const tasksQuery = useQuery({
+    queryKey: ["competitionTasks", competitionId],
+    queryFn: () => getCompetitionTasks(competitionId),
+    enabled: !!competitionId,
+  });
 
-    if (competitionId) {
-      fetchTasks();
+  const submitMutation = useMutation({
+    mutationFn: () => submitTaskSolution(competitionId, taskId || "", answer),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ 
+        queryKey: ['submissionHistory', competitionId, taskId] 
+      });
+      setAnswer("");
     }
-  }, [competitionId]);
+  });
+
+  const tasks = tasksQuery.data || [];
+  const isLoading = tasksQuery.isLoading;
+  const error = tasksQuery.error ? "Не удалось загрузить задания. Пожалуйста, попробуйте позже." : null;
 
   const currentTask = tasks.find((t) => t.id === taskId) || null;
 
-  if (!taskId && tasks.length > 0 && !loading) {
+  if (!taskId && tasks.length > 0 && !isLoading) {
     return (
       <Navigate
         to={`/competition/${competitionId}/tasks/${tasks[0].id}`}
@@ -48,14 +44,10 @@ const CompetitionSession = () => {
     );
   }
 
-  const handleSubmit = async () => {
-    if (!currentTask || !competitionId) return;
-
-    try {
-      console.log("Solution submitted successfully");
-    } catch (err) {
-      console.error("Failed to submit solution:", err);
-    }
+  const handleSubmit = () => {
+    console.log(currentTask, competitionId, answer)
+    if (!currentTask || !competitionId || !answer.trim()) return;
+    submitMutation.mutate();
   };
 
   return (
@@ -68,7 +60,7 @@ const CompetitionSession = () => {
 
       <main className="flex-1 bg-[#F8F8F8] pb-8">
         <div className="mx-auto max-w-6xl px-4 py-6">
-          {loading ? (
+          {isLoading ? (
             <div className="flex h-40 flex-col items-center justify-center rounded-lg bg-white">
               <Loader2 className="mb-2 h-8 w-8 animate-spin text-gray-400" />
               <p className="font-hse-sans text-gray-500">Загрузка заданий...</p>
@@ -82,7 +74,7 @@ const CompetitionSession = () => {
               <TaskContent task={currentTask} />
               <TaskSolution
                 task={currentTask}
-                solutions={mockSolutions} // Still using mock solutions
+                solutions={[]}
                 answer={answer}
                 setAnswer={setAnswer}
                 onSubmit={handleSubmit}

services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/ActionButtons/index.tsx

@@ -1,31 +1,21 @@
-import React, { useState } from 'react';
+import React from 'react';
 import { Button } from "@/components/ui/button";
-import SolutionHistorySheet from '../SolutionHistorySheet';
-import { Solution } from "@/shared/types";
-import { mockSolutions } from '@/shared/mocks/mocks';
 
 interface ActionButtonsProps {
   onSubmit: () => void;
-  solutionHistory?: Solution[]; 
+  onHistoryClick: () => void;
 }
 
 const ActionButtons: React.FC<ActionButtonsProps> = ({ 
   onSubmit,
-  solutionHistory = mockSolutions
+  onHistoryClick
 }) => {
-  const [isHistoryOpen, setIsHistoryOpen] = useState(false);
-  
-  const handleHistoryClick = () => {
-    setIsHistoryOpen(true);
-  };
-
   return (
-    <>
     <div className="flex gap-8">
       <Button 
         variant="ghost" 
         className="font-hse-sans bg-white hover:bg-gray-100"
-          onClick={handleHistoryClick}
+        onClick={onHistoryClick}
       >
         История
       </Button>
@@ -36,13 +26,6 @@ const ActionButtons: React.FC<ActionButtonsProps> = ({
         Отправить решение
       </Button>
     </div>
-      {/* чуть-чуть рак */}
-      <SolutionHistorySheet 
-        isOpen={isHistoryOpen} 
-        onOpenChange={setIsHistoryOpen} 
-        solutions={solutionHistory} 
-      />
-    </>
   );
 };
 

services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionHistorySheet/index.tsx

@@ -3,18 +3,20 @@ import { Sheet, SheetClose, SheetContent, SheetHeader, SheetTitle } from "@/comp
 import { Button } from "@/components/ui/button";
 import { X } from "lucide-react";
 import SolutionStatus from '../SolutionStatus';
-import { Solution } from "@/shared/types";
+import { Solution } from '@/shared/types/task';
 
 interface SolutionHistorySheetProps {
   isOpen: boolean;
   onOpenChange: (open: boolean) => void;
   solutions: Solution[];
+  maxPoints: number
 }
 
 const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
   isOpen,
   onOpenChange,
-  solutions
+  solutions,
+  maxPoints
 }) => {
   return (
     <Sheet open={isOpen} onOpenChange={onOpenChange}>
@@ -34,7 +36,7 @@ const SolutionHistorySheet: React.FC<SolutionHistorySheetProps> = ({
           {solutions.length > 0 ? (
             solutions.map((solution, index) => (
               <div key={index} className="w-full">
-                <SolutionStatus solution={solution} />
+                <SolutionStatus solution={solution} maxPoints={maxPoints} />
               </div>
             ))
           ) : (

services/frontend/src/pages/CompetitionSession/modules/TaskSolution/components/SolutionStatus/index.tsx

@@ -1,41 +1,26 @@
 import React from 'react';
-import { Solution, TaskStatus } from "@/shared/types";
-import { getTaskBgColor, getTaskTextColor } from '@/pages/CompetitionSession/utils/utils';
+import { Solution } from '@/shared/types/task';
+import { getSolutionBgColor, getSolutionTextColor, getStatusText } from '@/pages/CompetitionSession/utils/utils';
 
 interface SolutionStatusProps {
   solution: Solution;
+  maxPoints: number;
 }
 
-const SolutionStatus: React.FC<SolutionStatusProps> = ({ solution }) => {
-  const getStatusText = (status: TaskStatus, score?: number, maxScore?: number) => {
-    switch (status) {
-      case TaskStatus.Checking:
-        return 'На проверке';
-      case TaskStatus.Wrong:
-        return 'Неверный ответ';
-      case TaskStatus.Correct:
-        return `Зачтено ${maxScore}/${maxScore} баллов`;
-      case TaskStatus.Partial:
-        return `Зачтено ${score}/${maxScore} баллов`;
-      case TaskStatus.Uncleared:
-        return 'Не решено';
-      default:
-        return '';
-    }
-  };
+const SolutionStatus: React.FC<SolutionStatusProps> = ({ solution, maxPoints }) => {
  
   return (
-    <div className={`${getTaskBgColor(solution.status)} rounded-lg p-4 relative`}>
+    <div className={`${getSolutionBgColor(solution.status, solution.earned_points, maxPoints)} rounded-lg p-4 relative`}>
       <div className="flex flex-col">
-        <span className={`${getTaskTextColor(solution.status)} font-medium`}>
+        <span className={`${getSolutionTextColor(solution.status, solution.earned_points, maxPoints)} font-medium`}>
           Решение {solution.id}
         </span>
-        <span className={`${getTaskTextColor(solution.status)} mt-1`}>
-          {getStatusText(solution.status, solution.score, solution.maxScore)}
+        <span className={`${getSolutionTextColor(solution.status, solution.earned_points, maxPoints)} mt-1`}>
+          {getStatusText(solution.status, solution.earned_points, maxPoints)}
         </span>
       </div>
-      <div className={`absolute bottom-2 right-3 text-xs ${getTaskTextColor(solution.status)}`}>
-        {solution.date}
+      <div className={`absolute bottom-2 right-3 text-xs ${getSolutionTextColor(solution.status, solution.earned_points, maxPoints)}`}>
+        {solution.timestamp}
       </div>
     </div>
   );

services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx

@@ -1,10 +1,14 @@
 import React, { useState, useRef } from 'react';
-import { Solution, Task } from "@/shared/types";
+import { useParams } from 'react-router-dom';
+import { Task, TaskType, Solution } from '@/shared/types/task';
+import { useQuery } from '@tanstack/react-query';
+import { getTaskSolutionHistory } from '@/shared/api/session';
 import SolutionStatus from './components/SolutionStatus';
 import InputSolution from './components/InputSolution';
 import FileSolution from './components/FileSolution';
 import CodeSolution from './components/CodeSolution';
 import ActionButtons from './components/ActionButtons';
+import SolutionHistorySheet from './components/SolutionHistorySheet';
 
 interface TaskSolutionProps {
   task: Task;
@@ -12,28 +16,49 @@ interface TaskSolutionProps {
   answer: string;
   setAnswer: (value: string) => void;
   onSubmit: () => void;
-
 }
 
 const TaskSolution: React.FC<TaskSolutionProps> = ({ 
   task, 
-  solutions,
+  solutions = [],
   answer, 
   setAnswer, 
   onSubmit, 
 }) => {
   const [selectedFile, setSelectedFile] = useState<File | null>(null);
   const fileInputRef = useRef<HTMLInputElement>(null);
+  const [isHistoryOpen, setIsHistoryOpen] = useState(false);
+  const { id: competitionId } = useParams<{ id: string }>();
+
+  const solutionsQuery = useQuery({
+    queryKey: ['solutionHistory', competitionId, task.id],
+    queryFn: () => getTaskSolutionHistory(competitionId || '', task.id),
+    enabled: !!(competitionId && task.id),
+  });
+
+  const solutionHistory = solutionsQuery.data || [];
+
+  const handleOpenHistory = () => {
+    setIsHistoryOpen(true);
+  };
+
+  const latestSolution = solutions && solutions.length > 0 ? solutions[0] : null;
 
   return (
     <div className="md:w-[500px] flex flex-col gap-4">
-      <SolutionStatus solution={solutions[0]} />
+      {latestSolution ? (
+        <SolutionStatus solution={latestSolution} maxPoints={task.points}/>
+      ) : (
+        <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
+          Решение еще не отправлено
+        </div>
+      )}
       
-      {task.solutionType === 'input' && (
+      {task.type === TaskType.INPUT && (
         <InputSolution answer={answer} setAnswer={setAnswer} />
       )}
       
-      {task.solutionType === 'file' && (
+      {task.type === TaskType.FILE && (
         <FileSolution 
           selectedFile={selectedFile} 
           setSelectedFile={setSelectedFile} 
@@ -41,11 +66,21 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
         />
       )}
       
-      {task.solutionType === 'code' && (
+      {task.type === TaskType.CODE && (
         <CodeSolution answer={answer} setAnswer={setAnswer} />
       )}
       
-      <ActionButtons onSubmit={onSubmit} />
+      <ActionButtons 
+        onSubmit={onSubmit} 
+        onHistoryClick={handleOpenHistory}
+      />
+      
+      <SolutionHistorySheet 
+        isOpen={isHistoryOpen} 
+        onOpenChange={setIsHistoryOpen} 
+        solutions={solutionHistory}
+        maxPoints={task.points}
+      />
     </div>
   );
 };

services/frontend/src/pages/CompetitionSession/utils/utils.ts

@@ -1,4 +1,5 @@
 import { TaskStatus } from "@/shared/types";
+import { SolutionStatus } from "@/shared/types/task";
 const getTaskBgColor = (status: TaskStatus): string => {
   switch (status) {
     case TaskStatus.Uncleared: return "bg-[var(--color-task-uncleared)]";
@@ -19,4 +20,39 @@ const getTaskTextColor = (status: TaskStatus): string => {
   }
 };
 
-export {getTaskBgColor, getTaskTextColor}
+const getSolutionBgColor = (status: SolutionStatus, earned_points: number, maxPoints: number): string => {
+  switch (status) {
+    case SolutionStatus.SENT: return "text-[var(--color-task-uncleared)]";
+    case SolutionStatus.CHECKING: return "text-[var(--color-task-checking)]";
+    case SolutionStatus.CHECKED: {
+      if (earned_points === 0) return "text-[var(--color-task-wrong)]";
+      else if (earned_points === maxPoints) "text-[var(--color-task-correct)]";
+      return "text-[var(--color-task-partial)]";
+    }
+  }
+}
+
+const getSolutionTextColor = (status: SolutionStatus, earned_points: number, maxPoints: number): string => {
+  switch (status) {
+    case SolutionStatus.SENT: return "text-[var(--color-task-text-uncleared)]";
+    case SolutionStatus.CHECKING: return "text-[var(--color-task-text-checking)]";
+    case SolutionStatus.CHECKED: {
+      if (earned_points === 0) return "text-[var(--color-task-text-wrong)]";
+      else if (earned_points === maxPoints) "text-[var(--color-task-text-correct)]";
+      return "text-[var(--color-task-text-partial)]";
+    }
+  }
+}
+
+const getStatusText = (status: SolutionStatus, earned_points: number, maxPoints: number): string => {
+  switch (status) {
+    case SolutionStatus.SENT: return "Решение отправлено";
+    case SolutionStatus.CHECKING: return "Решение проверяется";
+    case SolutionStatus.CHECKED: {
+      if (earned_points === 0) return "Неверный ответ";
+      else if (earned_points === maxPoints) `Зачтено ${maxPoints}/${maxPoints} баллов`;
+      return `Зачтено ${earned_points}/${maxPoints} баллов`;
+    }
+  }
+}
+export {getTaskBgColor, getTaskTextColor, getSolutionBgColor, getSolutionTextColor, getStatusText}

services/frontend/src/pages/Competitions/components/CompetitionCard/index.tsx

@@ -20,13 +20,11 @@ export function CompetitionCard({
       className={cn("aspect-square h-full w-auto overflow-hidden", className)}
     >
       <div className="relative h-full overflow-hidden">
-        {competition.image_url && (
         <img
-            src={competition.image_url}
+          src={competition.image_url ? competition.image_url : '/DANO.png'}
           alt={competition.title}
           className="h-full w-full object-cover object-center"
         />
-        )}
       </div>
 
       <CardContent>

services/frontend/src/pages/Competitions/index.tsx

@@ -112,4 +112,5 @@ const SectionTitle = ({ children }: { children: React.ReactNode }) => {
   return <h1 className="w-full text-3xl font-semibold">{children}</h1>;
 };
 
+
 export default CompetitionsPage;

services/frontend/src/shared/api/competitions.ts

@@ -12,3 +12,9 @@ export const getCompetitions = async (participating?: boolean) => {
 export const getCompetition = async (id: string) => {
   return await userFetch<Competition>(`/competition/${id}`);
 };
+
+export const startCompetition = async (competitionId: string) => {
+  return await userFetch(`/competitions/${competitionId}/start`, {
+    method: 'POST'
+  });
+};

services/frontend/src/shared/api/session.ts

@@ -1,82 +1,37 @@
-import { apiFetch } from './index';
-import { Task, TaskStatus } from '@/shared/types';
+import { userFetch } from ".";
+import { Task, Solution, TaskAttachment } from "../types/task";
 
-interface ApiTask {
-  id: string;
-  title: string;
-  description: string;
-  type: 'input' | 'file' | 'code';
-  in_competition_position: number;
-  points: number;
-  status?: TaskStatus; 
-}
+export const getCompetitionTasks = async (competitionId: string) => {
+  return await userFetch<Task[]>(`/competitions/${competitionId}/tasks`);
+};
 
-/**
- * Fetches tasks for a specific competition
- * @param competitionId - The ID of the competition
- * @returns Promise with an array of tasks in the application's format
- */
-export const getCompetitionTasks = async (competitionId: string): Promise<Task[]> => {
-  try {
-    const apiTasks: ApiTask[] = await apiFetch(`/api/v1/competitions/${competitionId}/tasks`);
+export const getTaskSolutionHistory = async (competitionId: string, taskId: string) => {
+  return await userFetch<Solution[]>(`/competitions/${competitionId}/tasks/${taskId}/history`);
+};
 
-    // Transform API tasks to application Task format
-    return apiTasks.map(apiTask => transformApiTask(apiTask));
-  } catch (error) {
-    console.error('Failed to fetch competition tasks:', error);
-    throw error;
+export const getTaskAttachments = async (competitionId: string, taskId: string) => {
+  return await userFetch<TaskAttachment[]>(`/competitions/${competitionId}/tasks/${taskId}/attachments`);
+};
+
+
+export const submitTaskSolution = async (
+  competitionId: string, 
+  taskId: string, 
+  solution: string | File
+) => {
+  const endpoint = `/competitions/${competitionId}/tasks/${taskId}/submit`;
+  if (typeof solution === 'string') {
+    return await userFetch(endpoint, {
+      method: 'POST',
+      body: { content: solution }
+    });
+  } else {
+    const formData = new FormData();
+    formData.append('file', solution);
+    
+    return await userFetch(endpoint, {
+      method: 'POST',
+      body: formData
+    });
   }
 };
-
-/**
- * Transforms an API task to the application's Task format
- */
-const transformApiTask = (apiTask: ApiTask): Task => {
-  return {
-    id: apiTask.id,
-    number: String(apiTask.in_competition_position), 
-    status: apiTask.status || TaskStatus.Uncleared,
-    solutionType: apiTask.type, 
-    description: apiTask.description,
-    maxScore: apiTask.points
-  };
-};
-
-
-// export const submitTaskSolution = async (
-//   competitionId: string, 
-//   taskId: string, 
-//   solution: string | File
-// ): Promise<void> => {
-//   const endpoint = `/api/v1/competitions/${competitionId}/tasks/${taskId}/submit`;
-  
-//   // Handle different solution types
-//   if (typeof solution === 'string') {
-//     // Text or code solution
-//     await apiFetch(endpoint, {
-//       method: 'POST',
-//       body: { answer: solution }
-//     });
-//   } else {
-//     // File solution
-//     const formData = new FormData();
-//     formData.append('file', solution);
-    
-//     await apiFetch(endpoint, {
-//       method: 'POST',
-//       body: formData
-//     });
-//   }
-// };
-
-/**
- * Gets the status of a task submission
- * This would be used to poll for updates after submission
- */
-// export const getTaskSubmissionStatus = async (
-//   competitionId: string,
-//   taskId: string
-// ): Promise<TaskStatus> => {
-//   const response = await apiFetch(`/api/v1/competitions/${competitionId}/tasks/${taskId}/status`);
-//   return response.status;
-// };

services/frontend/src/shared/types.ts

@@ -12,6 +12,11 @@ enum TaskStatus {
   Wrong = "wrong"
 }
 
+enum ParticipationType {
+  Solo = "solo",
+  Team = "team"
+}
+
 interface Competition {
   id: string;
   name: string;
@@ -19,6 +24,9 @@ interface Competition {
   isOlympics: boolean;
   status: CompetitionStatus;
   description?: string;
+  startDate: Date;
+  endDate: Date;
+  participationType: ParticipationType
 }
 
 type SolutionType = "input" | "file" | "code";
@@ -42,5 +50,5 @@ interface Task {
   attachments?: string[];
 }
 
-export { CompetitionStatus, TaskStatus };
+export { CompetitionStatus, TaskStatus, ParticipationType };
 export type { Solution, Competition, Task };

services/frontend/src/shared/types/task.ts

@@ -0,0 +1,36 @@
+interface Task {
+  id: string;
+  title: string;
+  description: string;
+  type: TaskType;
+  in_competition_position: number;
+  points: number;
+}
+
+export interface TaskAttachment {
+  id: string;
+  file: string;
+  public: boolean;
+}
+
+enum TaskType {
+  INPUT = "input",
+  FILE = "checker",
+  CODE = "review",
+}
+
+enum SolutionStatus {
+  SENT = "sent",
+  CHECKING = "checking",
+  CHECKED = "checked",
+}
+
+interface Solution {
+  id: string,
+  status: SolutionStatus,
+  timestamp: string,
+  earned_points: number
+}
+
+export type {Task, Solution}
+export {TaskType, SolutionStatus}