minor fixes

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

@@ -1,111 +1,115 @@
-import React, { useState, useRef } 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 from 'react';
+import { FileIcon, Download } from 'lucide-react';
+import { Button } from "@/components/ui/button";
 
-interface TaskSolutionProps {
-  task: Task;
-  answer: string;
-  setAnswer: (value: string) => void;
+interface FileSolutionProps {
   selectedFile: File | null;
   setSelectedFile: (file: File | null) => void;
-  onSubmit: () => void;
+  fileInputRef: React.RefObject<HTMLInputElement>;
+  existingFileUrl?: string | null; 
 }
 
-const TaskSolution: React.FC<TaskSolutionProps> = ({ 
-  task, 
-  answer,
-  setAnswer,
-  selectedFile,
+const FileSolution: React.FC<FileSolutionProps> = ({ 
+  selectedFile, 
   setSelectedFile, 
-  onSubmit,
+  fileInputRef,
+  existingFileUrl = null
 }) => {
-  const fileInputRef = useRef<HTMLInputElement>(null);
-  const [isHistoryOpen, setIsHistoryOpen] = useState(false);
-  const [selectedSolutionUrl, setSelectedSolutionUrl] = useState<string | null>(null);
-  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 handleFileChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    if (event.target.files && event.target.files[0]) {
+      setSelectedFile(event.target.files[0]);
+    }
   };
 
-  const latestSolution = solutionHistory && solutionHistory.length > 0 ? solutionHistory[solutionHistory.length - 1] : null;
-
-  const handleSolutionSelect = async (solution: Solution) => {
-    if (!solution.content) return;
-    
-    setSelectedSolutionUrl(solution.content);
-    
-    try {
-      if (task.type !== TaskType.FILE) {
-        const response = await fetch(solution.content);
-        if (!response.ok) {
-          throw new Error(`Failed to fetch solution content: ${response.status}`);
-        }
-        const text = await response.text();
-        setAnswer(text);
-      }
-    } catch (error) {
-      console.error('Error loading solution content:', error);
-    } 
+  const handleFileUploadClick = () => {
+    fileInputRef.current?.click();
   };
 
+  const handleDragOver = (e: React.DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    e.currentTarget.classList.add('bg-gray-50');
+  };
+
+  const handleDragLeave = (e: React.DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    e.currentTarget.classList.remove('bg-gray-50');
+  };
+
+  const handleDrop = (e: React.DragEvent<HTMLDivElement>) => {
+    e.preventDefault();
+    e.currentTarget.classList.remove('bg-gray-50');
+    
+    if (e.dataTransfer.files && e.dataTransfer.files[0]) {
+      setSelectedFile(e.dataTransfer.files[0]);
+    }
+  };
+
+  const fileName = selectedFile 
+    ? selectedFile.name 
+    : existingFileUrl 
+      ? existingFileUrl.split('/').pop() || 'file' 
+      : '';
+
+  const hasFile = !!selectedFile || !!existingFileUrl;
+
   return (
-    <div className="md:w-[500px] flex flex-col gap-4">
-      {latestSolution ? (
-        <SolutionStatus solution={latestSolution} maxPoints={task.points}/>
+    <>
+      <input 
+        type="file" 
+        ref={fileInputRef}
+        className="hidden" 
+        onChange={handleFileChange}
+        accept=".jpg,.jpeg,.png,.pptx,.docx,.pdf,.xlsx,.txt"
+      />
+      
+      {hasFile ? (
+        <div className="bg-white rounded-lg p-6 flex flex-col items-center justify-center min-h-[180px]">
+          <div className="flex flex-col items-center">
+            <FileIcon size={28} className="text-black mb-2" />
+            <span className="text-sm text-gray-700 font-medium mb-1 font-hse-sans">{fileName}</span>
+            
+            <div className="flex items-center mt-2">
+              {existingFileUrl && !selectedFile && (
+                <a 
+                  href={existingFileUrl}
+                  download
+                  className="flex items-center text-blue-500 text-sm mr-3 hover:text-blue-600"
+                >
+                  <Download size={16} className="mr-1" />
+                  Скачать
+                </a>
+              )}
+              <Button 
+                variant="ghost" 
+                className="text-blue-500 text-sm p-0 h-auto hover:bg-transparent hover:text-blue-600 font-hse-sans"
+                onClick={() => setSelectedFile(null)}
+              >
+                {!selectedFile && existingFileUrl ? "Выбрать другой файл" : "Очистить"}
+              </Button>
+            </div>
+          </div>
+        </div>
       ) : (
-        <div className="bg-gray-100 rounded-lg p-4 text-gray-600 font-hse-sans">
-          Решение еще не отправлено
+        <div 
+          className="bg-white rounded-lg p-6 flex flex-col items-center justify-center min-h-[180px] cursor-pointer transition-colors"
+          onClick={handleFileUploadClick}
+          onDragOver={handleDragOver}
+          onDragLeave={handleDragLeave}
+          onDrop={handleDrop}
+        >
+          <FileIcon size={28} className="text-black mb-3" />
+          <span 
+            className="bg-[var(--color-yellow-standard)] text-black font-medium rounded-full px-4 py-1.5 text-sm mb-2 font-hse-sans inline-block"
+          >
+            Загрузить файл
+          </span>
+          <p className="text-xs text-gray-500 text-center font-hse-sans">
+            Доступные форматы: jpg, jpeg, png, pptx, docx, pdf, xlsx, txt
+          </p>
         </div>
       )}
-      
-      {task.type === TaskType.INPUT && (
-        <InputSolution answer={answer} setAnswer={setAnswer} />
-      )}
-      
-      {task.type === TaskType.FILE && (
-        <FileSolution 
-          selectedFile={selectedFile} 
-          setSelectedFile={setSelectedFile} 
-          fileInputRef={fileInputRef}
-          existingFileUrl={selectedSolutionUrl}
-        />
-      )}
-      
-      {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>
+    </>
   );
 };
 
-export default TaskSolution;
+export default FileSolution;