added submissions count

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

@@ -1,14 +1,19 @@
 import React from 'react';
 import { Button } from "@/components/ui/button";
+import { Loader2 } from "lucide-react";
 
 interface ActionButtonsProps {
   onSubmit: () => void;
   onHistoryClick: () => void;
+  isSubmitting?: boolean;
+  hasSubmissionsLeft?: boolean;
 }
 
 const ActionButtons: React.FC<ActionButtonsProps> = ({ 
   onSubmit,
-  onHistoryClick
+  onHistoryClick,
+  isSubmitting = false,
+  hasSubmissionsLeft = true
 }) => {
   return (
     <div className="flex gap-8">
@@ -16,15 +21,31 @@ const ActionButtons: React.FC<ActionButtonsProps> = ({
         variant="ghost" 
         className="font-hse-sans bg-white hover:bg-gray-100"
         onClick={onHistoryClick}
+        disabled={isSubmitting}
       >
         История
       </Button>
-      <Button 
-        onClick={onSubmit}
-        className="font-hse-sans flex-grow" 
-      >
-        Отправить решение
-      </Button>
+      
+      {hasSubmissionsLeft ? (
+        <Button 
+          onClick={onSubmit}
+          className="font-hse-sans flex-grow" 
+          disabled={isSubmitting}
+        >
+          {isSubmitting ? (
+            <>
+              <Loader2 className="mr-2 h-4 w-4 animate-spin" />
+              Отправка...
+            </>
+          ) : (
+            "Отправить решение"
+          )}
+        </Button>
+      ) : (
+        <div className="flex-grow text-right text-gray-500 flex items-center justify-end font-hse-sans">
+          Лимит посылок исчерпан
+        </div>
+      )}
     </div>
   );
 };

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

@@ -68,6 +68,7 @@ const FileSolution: React.FC<FileSolutionProps> = ({
       ? existingFileUrl.split('/').pop() || 'file' 
       : '';
 
+  console.log(firstSolution, "IS FIRST SOLUTION")
   const hasFile = !!selectedFile || (!!existingFileUrl && !firstSolution);
 
   return (

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

@@ -1,170 +1,200 @@
-  import React, { useState, useRef, useEffect } from 'react';
-  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';
+import React, { useState, useRef, useEffect } from 'react';
+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;
-    answer: string;
-    setAnswer: (value: string) => void;
-    selectedFile: File | null;
-    setSelectedFile: (file: File | null) => void;
-    onSubmit: () => void;
-  }
+interface TaskSolutionProps {
+  task: Task;
+  answer: string;
+  setAnswer: (value: string) => void;
+  selectedFile: File | null;
+  setSelectedFile: (file: File | null) => void;
+  onSubmit: () => void;
+  isSubmitting?: boolean;
+}
 
-  const TaskSolution: React.FC<TaskSolutionProps> = ({ 
-    task, 
-    answer,
-    setAnswer,
-    selectedFile,
-    setSelectedFile, 
-    onSubmit,
-  }) => {
-    const fileInputRef = useRef<HTMLInputElement>(null);
-    const [isHistoryOpen, setIsHistoryOpen] = useState(false);
-    const [selectedSolutionUrl, setSelectedSolutionUrl] = useState<string | null>(null);
-    const [displayedSolution, setDisplayedSolution] = useState<Solution | null>(null);
-    const { id: competitionId } = useParams<{ id: string }>();
-    const prevTaskIdRef = useRef<string | null>(null);
+const TaskSolution: React.FC<TaskSolutionProps> = ({ 
+  task, 
+  answer,
+  setAnswer,
+  selectedFile,
+  setSelectedFile, 
+  onSubmit,
+  isSubmitting = false
+}) => {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [isHistoryOpen, setIsHistoryOpen] = useState(false);
+  const [selectedSolutionUrl, setSelectedSolutionUrl] = useState<string | null>(null);
+  const [displayedSolution, setDisplayedSolution] = useState<Solution | null>(null);
+  const { id: competitionId } = useParams<{ id: string }>();
+  const prevTaskIdRef = useRef<string | null>(null);
 
-    const solutionsQuery = useQuery({
-      queryKey: ['solutionHistory', competitionId, task.id],
-      queryFn: () => getTaskSolutionHistory(competitionId || '', task.id),
-      enabled: !!(competitionId && task.id),
-    });
+  const solutionsQuery = useQuery({
+    queryKey: ['solutionHistory', competitionId, task.id],
+    queryFn: () => getTaskSolutionHistory(competitionId || '', task.id),
+    enabled: !!(competitionId && task.id),
+  });
 
-    const solutionHistory = solutionsQuery.data || [];
+  const solutionHistory = solutionsQuery.data || [];
+  
+  const maxAttempts = task.max_attempts || -1;
+  const submissionsUsed = solutionHistory.length;
+  const submissionsLeft = Math.max(0, maxAttempts - submissionsUsed);
+  const hasSubmissionsLeft = submissionsLeft > 0;
 
-    useEffect(() => {
-      if (solutionHistory.length > 0 && !displayedSolution) {
+  useEffect(() => {
+    if (solutionHistory.length > 0 && !displayedSolution) {
+      const latestSolution = solutionHistory[solutionHistory.length - 1];
+      setDisplayedSolution(latestSolution);
+    }
+  }, [solutionHistory, displayedSolution]);
+
+  useEffect(() => {
+    if (prevTaskIdRef.current !== task.id) {
+      setDisplayedSolution(null);
+      setSelectedSolutionUrl(null);
+      
+      if (solutionHistory.length > 0) {
         const latestSolution = solutionHistory[solutionHistory.length - 1];
         setDisplayedSolution(latestSolution);
       }
-    }, [solutionHistory, displayedSolution]);
+      
+      prevTaskIdRef.current = task.id;
+    }
+  }, [task.id, solutionHistory]);
 
-    useEffect(() => {
-      if (prevTaskIdRef.current !== task.id) {
-        setDisplayedSolution(null);
-        setSelectedSolutionUrl(null);
-        
-        if (solutionHistory.length > 0) {
-          const latestSolution = solutionHistory[solutionHistory.length - 1];
-          setDisplayedSolution(latestSolution);
-        }
-        
-        prevTaskIdRef.current = task.id;
+  useEffect(() => {
+    if (solutionHistory.length > 0 && displayedSolution) {
+      const latestSolution = solutionHistory[solutionHistory.length - 1];
+      
+      if (latestSolution.id !== displayedSolution.id) {
+        setDisplayedSolution(latestSolution);
       }
-    }, [task.id, solutionHistory]);
+    }
+  }, [solutionHistory, displayedSolution]);
 
-    useEffect(() => {
-      if (solutionHistory.length > 0 && displayedSolution) {
-        const latestSolution = solutionHistory[solutionHistory.length - 1];
-        
-        if (latestSolution.id !== displayedSolution.id) {
-          setDisplayedSolution(latestSolution);
-        }
-      }
-    }, [solutionHistory, displayedSolution]);
-
-    // Load solution content when the displayed solution changes
-    useEffect(() => {
-      const loadSolutionContent = async () => {
-        if (!displayedSolution || !displayedSolution.content) return;
-        
-        try {
-          if (task.type === TaskType.FILE) {
-            setSelectedFile(null);
-            setSelectedSolutionUrl(displayedSolution.content);
-          } else {
-            const response = await fetch(displayedSolution.content);
-            if (!response.ok) {
-              throw new Error(`Failed to fetch solution content: ${response.status}`);
-            }
-            const text = await response.text();
-            setAnswer(text);
+  useEffect(() => {
+    const loadSolutionContent = async () => {
+      if (!displayedSolution || !displayedSolution.content) return;
+      
+      try {
+        if (task.type === TaskType.FILE) {
+          setSelectedFile(null);
+          setSelectedSolutionUrl(displayedSolution.content);
+        } else {
+          const response = await fetch(displayedSolution.content);
+          if (!response.ok) {
+            throw new Error(`Failed to fetch solution content: ${response.status}`);
           }
-        } catch (error) {
-          console.error('Error loading solution content:', error);
+          const text = await response.text();
+          setAnswer(text);
         }
-      };
-
-      loadSolutionContent();
-    }, [displayedSolution, task.type, setAnswer, setSelectedFile]);
-
-    const handleOpenHistory = () => {
-      setIsHistoryOpen(true);
+      } catch (error) {
+        console.error('Error loading solution content:', error);
+      }
     };
 
-    const handleSolutionSelect = (solution: Solution) => {
-      setDisplayedSolution(solution);
-    };
+    loadSolutionContent();
+  }, [displayedSolution, task.type, setAnswer, setSelectedFile]);
 
-    const handleClearExistingFile = () => {
-      setSelectedSolutionUrl(null);
-    };
-
-    return (
-      <div className="md:w-[500px] flex flex-col gap-4">
-        {displayedSolution ? (
-          <>
-            <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
-              Последнее решение
-            </div>
-            <SolutionStatus solution={displayedSolution} maxPoints={task.points}/>
-          </>
-
-        ) : (
-          <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
-            Решение еще не отправлено
-          </div>
-        )}
-        
-        {task.type === TaskType.INPUT && (
-          <InputSolution 
-            answer={answer} 
-            setAnswer={setAnswer} 
-          />
-        )}
-        
-        {task.type === TaskType.FILE && (
-          <FileSolution 
-            selectedFile={selectedFile} 
-            setSelectedFile={setSelectedFile} 
-            fileInputRef={fileInputRef}
-            existingFileUrl={selectedSolutionUrl}
-            onClearExistingFile={handleClearExistingFile}
-            firstSolution={solutionHistory.length > 0}
-          />
-        )}
-        
-        {task.type === TaskType.CODE && (
-          <CodeSolution 
-            answer={answer} 
-            setAnswer={setAnswer}
-          />
-        )}
-        
-        <ActionButtons 
-          onSubmit={onSubmit} 
-          onHistoryClick={handleOpenHistory}
-        />
-        
-        <SolutionHistorySheet 
-          isOpen={isHistoryOpen} 
-          onOpenChange={setIsHistoryOpen} 
-          solutions={solutionHistory}
-          maxPoints={task.points}
-          onSolutionSelect={handleSolutionSelect}
-        />
-      </div>
-    );
+  const handleOpenHistory = () => {
+    setIsHistoryOpen(true);
   };
 
-  export default TaskSolution;
+  const handleSolutionSelect = (solution: Solution) => {
+    setDisplayedSolution(solution);
+  };
+
+  const handleClearExistingFile = () => {
+    setSelectedSolutionUrl(null);
+  };
+
+  return (
+    <div className="md:w-[500px] flex flex-col gap-4">
+      {displayedSolution ? (
+        <>
+          <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
+            Результат последней посылки:
+          </div>
+          <SolutionStatus key={displayedSolution.id} solution={displayedSolution} maxPoints={task.points}/>
+        </>
+      ) : (
+        <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
+          Решение еще не отправлено
+        </div>
+      )}
+      
+      {task.type === TaskType.INPUT && (
+        <InputSolution 
+          answer={answer} 
+          setAnswer={setAnswer} 
+        />
+      )}
+      
+      {task.type === TaskType.FILE && (
+        <FileSolution 
+          selectedFile={selectedFile} 
+          setSelectedFile={setSelectedFile} 
+          fileInputRef={fileInputRef}
+          existingFileUrl={selectedSolutionUrl}
+          onClearExistingFile={handleClearExistingFile}
+          firstSolution={solutionHistory.length > 0}
+        />
+      )}
+      
+      {task.type === TaskType.CODE && (
+        <CodeSolution 
+          answer={answer} 
+          setAnswer={setAnswer}
+        />
+      )}
+
+      <div className={`rounded-lg p-3 font-hse-sans text-sm flex items-center 
+        ${hasSubmissionsLeft 
+          ? 'bg-blue-50 text-blue-700'
+          : 'bg-red-50 text-red-700'}`}
+      >
+        {hasSubmissionsLeft ? (
+          <>
+            <span className="font-medium">
+              Осталось посылок: {submissionsLeft === Infinity ? '∞' : submissionsLeft}
+            </span>
+            {maxAttempts !== -1 && (
+              <span className="text-blue-500 ml-1">
+                (из {maxAttempts})
+              </span>
+            )}
+          </>
+        ) : (
+          <span className="font-medium">
+            Вы использовали все посылки
+          </span>
+        )}
+      </div>
+
+      <ActionButtons 
+        onSubmit={onSubmit} 
+        onHistoryClick={handleOpenHistory}
+        isSubmitting={isSubmitting}
+        hasSubmissionsLeft={hasSubmissionsLeft}
+      />
+      
+      <SolutionHistorySheet 
+        isOpen={isHistoryOpen} 
+        onOpenChange={setIsHistoryOpen} 
+        solutions={solutionHistory}
+        maxPoints={task.points}
+        onSolutionSelect={handleSolutionSelect}
+      />
+    </div>
+  );
+};
+
+export default TaskSolution;

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

@@ -5,6 +5,7 @@ interface Task {
   type: TaskType;
   in_competition_position: number;
   points: number;
+  max_attempts: number;
 }
 
 export interface TaskAttachment {