Merge branch 'main' of http://192.168.1.227:10300/hyungi/TK-MP-Project

frontend/src/App.css

@@ -0,0 +1,42 @@
+#root {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.react:hover {
+  filter: drop-shadow(0 0 2em #61dafbaa);
+}
+
+@keyframes logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  a:nth-of-type(2) .logo {
+    animation: logo-spin infinite 20s linear;
+  }
+}
+
+.card {
+  padding: 2em;
+}
+
+.read-the-docs {
+  color: #888;
+}

frontend/src/App.jsx

@@ -0,0 +1,180 @@
+import React, { useState, useEffect } from 'react';
+import {
+  AppBar,
+  Toolbar,
+  Typography,
+  Container,
+  Box,
+  Tab,
+  Tabs,
+  ThemeProvider,
+  createTheme,
+  CssBaseline
+} from '@mui/material';
+import {
+  Dashboard as DashboardIcon,
+  Upload as UploadIcon,
+  List as ListIcon,
+  Assignment as ProjectIcon
+} from '@mui/icons-material';
+
+import Dashboard from './components/Dashboard';
+import FileUpload from './components/FileUpload';
+import MaterialList from './components/MaterialList';
+import ProjectManager from './components/ProjectManager';
+
+// Material-UI 테마 설정
+const theme = createTheme({
+  palette: {
+    primary: {
+      main: '#1976d2',
+    },
+    secondary: {
+      main: '#dc004e',
+    },
+    background: {
+      default: '#f5f5f5',
+    },
+  },
+  typography: {
+    h4: {
+      fontWeight: 600,
+    },
+    h6: {
+      fontWeight: 500,
+    },
+  },
+});
+
+function TabPanel({ children, value, index, ...other }) {
+  return (
+    <div
+      role="tabpanel"
+      hidden={value !== index}
+      id={`tabpanel-${index}`}
+      aria-labelledby={`tab-${index}`}
+      {...other}
+    >
+      {value === index && <Box sx={{ p: 3 }}>{children}</Box>}
+    </div>
+  );
+}
+
+function App() {
+  const [tabValue, setTabValue] = useState(0);
+  const [projects, setProjects] = useState([]);
+  const [selectedProject, setSelectedProject] = useState(null);
+
+  const handleTabChange = (event, newValue) => {
+    setTabValue(newValue);
+  };
+
+  // 프로젝트 목록 로드
+  useEffect(() => {
+    fetchProjects();
+  }, []);
+
+  const fetchProjects = async () => {
+    try {
+      const response = await fetch('http://localhost:8000/api/projects');
+      if (response.ok) {
+        const data = await response.json();
+        setProjects(data);
+        if (data.length > 0 && !selectedProject) {
+          setSelectedProject(data[0]);
+        }
+      }
+    } catch (error) {
+      console.error('프로젝트 로드 실패:', error);
+    }
+  };
+
+  return (
+    <ThemeProvider theme={theme}>
+      <CssBaseline />
+      <Box sx={{ flexGrow: 1 }}>
+        {/* 상단 앱바 */}
+        <AppBar position="static" elevation={1}>
+          <Toolbar>
+            <Typography variant="h6" component="div" sx={{ flexGrow: 1 }}>
+              TK-MP BOM 관리 시스템
+            </Typography>
+            <Typography variant="body2" sx={{ opacity: 0.8 }}>
+              {selectedProject ? `프로젝트: ${selectedProject.name}` : '프로젝트 없음'}
+            </Typography>
+          </Toolbar>
+        </AppBar>
+
+        {/* 탭 네비게이션 */}
+        <Box sx={{ borderBottom: 1, borderColor: 'divider', bgcolor: 'white' }}>
+          <Container maxWidth="xl">
+            <Tabs 
+              value={tabValue} 
+              onChange={handleTabChange}
+              variant="scrollable"
+              scrollButtons="auto"
+            >
+              <Tab 
+                icon={<DashboardIcon />} 
+                label="대시보드" 
+                iconPosition="start"
+              />
+              <Tab 
+                icon={<ProjectIcon />} 
+                label="프로젝트 관리" 
+                iconPosition="start"
+              />
+              <Tab 
+                icon={<UploadIcon />} 
+                label="파일 업로드" 
+                iconPosition="start"
+              />
+              <Tab 
+                icon={<ListIcon />} 
+                label="자재 목록" 
+                iconPosition="start"
+              />
+            </Tabs>
+          </Container>
+        </Box>
+
+        {/* 메인 콘텐츠 */}
+        <Container maxWidth="xl">
+          <TabPanel value={tabValue} index={0}>
+            <Dashboard 
+              selectedProject={selectedProject}
+              projects={projects}
+            />
+          </TabPanel>
+          
+          <TabPanel value={tabValue} index={1}>
+            <ProjectManager 
+              projects={projects}
+              selectedProject={selectedProject}
+              setSelectedProject={setSelectedProject}
+              onProjectsChange={fetchProjects}
+            />
+          </TabPanel>
+          
+          <TabPanel value={tabValue} index={2}>
+            <FileUpload 
+              selectedProject={selectedProject}
+              onUploadSuccess={() => {
+                // 업로드 성공 시 대시보드로 이동
+                setTabValue(0);
+              }}
+            />
+          </TabPanel>
+          
+          <TabPanel value={tabValue} index={3}>
+            <MaterialList 
+              selectedProject={selectedProject}
+            />
+          </TabPanel>
+        </Container>
+      </Box>
+    </ThemeProvider>
+  );
+}
+
+export default App;

frontend/src/assets/react.svg

@@ -0,0 +1 @@
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frontend/src/components/Dashboard.jsx

@@ -0,0 +1,128 @@
+import React, { useState, useEffect } from 'react';
+import { Typography, Box, Card, CardContent, Grid, CircularProgress } from '@mui/material';
+
+function Dashboard({ selectedProject, projects }) {
+  const [stats, setStats] = useState(null);
+  const [loading, setLoading] = useState(false);
+
+  useEffect(() => {
+    if (selectedProject) {
+      fetchMaterialStats();
+    }
+  }, [selectedProject]);
+
+  const fetchMaterialStats = async () => {
+    setLoading(true);
+    try {
+      const response = await fetch(`http://localhost:8000/api/files/materials/summary?project_id=${selectedProject.id}`);
+      if (response.ok) {
+        const data = await response.json();
+        setStats(data.summary);
+      }
+    } catch (error) {
+      console.error('통계 로드 실패:', error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <Box>
+      <Typography variant="h4" gutterBottom>
+        📊 대시보드
+      </Typography>
+      
+      <Grid container spacing={3}>
+        <Grid item xs={12} md={6}>
+          <Card>
+            <CardContent>
+              <Typography variant="h6" color="primary" gutterBottom>
+                프로젝트 현황
+              </Typography>
+              <Typography variant="h3" component="div" sx={{ mb: 1 }}>
+                {projects.length}
+              </Typography>
+              <Typography variant="body2" color="textSecondary">
+                총 프로젝트 수
+              </Typography>
+              <Typography variant="body1" sx={{ mt: 2 }}>
+                선택된 프로젝트: {selectedProject ? selectedProject.project_name : '없음'}
+              </Typography>
+            </CardContent>
+          </Card>
+        </Grid>
+
+        <Grid item xs={12} md={6}>
+          <Card>
+            <CardContent>
+              <Typography variant="h6" color="secondary" gutterBottom>
+                자재 현황
+              </Typography>
+              {loading ? (
+                <Box display="flex" justifyContent="center" py={3}>
+                  <CircularProgress />
+                </Box>
+              ) : stats ? (
+                <Box>
+                  <Typography variant="h3" component="div" sx={{ mb: 1 }}>
+                    {stats.total_items.toLocaleString()}
+                  </Typography>
+                  <Typography variant="body2" color="textSecondary" sx={{ mb: 2 }}>
+                    총 자재 수
+                  </Typography>
+                  <Typography variant="body2">
+                    고유 품목: {stats.unique_descriptions}개
+                  </Typography>
+                  <Typography variant="body2">
+                    고유 사이즈: {stats.unique_sizes}개
+                  </Typography>
+                  <Typography variant="body2">
+                    총 수량: {stats.total_quantity.toLocaleString()}
+                  </Typography>
+                </Box>
+              ) : (
+                <Typography variant="body2" color="textSecondary">
+                  프로젝트를 선택하면 자재 현황을 확인할 수 있습니다.
+                </Typography>
+              )}
+            </CardContent>
+          </Card>
+        </Grid>
+
+        {selectedProject && (
+          <Grid item xs={12}>
+            <Card>
+              <CardContent>
+                <Typography variant="h6" gutterBottom>
+                  📋 프로젝트 상세 정보
+                </Typography>
+                <Grid container spacing={2}>
+                  <Grid item xs={12} sm={6}>
+                    <Typography variant="body2" color="textSecondary">프로젝트 코드</Typography>
+                    <Typography variant="body1">{selectedProject.official_project_code}</Typography>
+                  </Grid>
+                  <Grid item xs={12} sm={6}>
+                    <Typography variant="body2" color="textSecondary">프로젝트명</Typography>
+                    <Typography variant="body1">{selectedProject.project_name}</Typography>
+                  </Grid>
+                  <Grid item xs={12} sm={6}>
+                    <Typography variant="body2" color="textSecondary">상태</Typography>
+                    <Typography variant="body1">{selectedProject.status}</Typography>
+                  </Grid>
+                  <Grid item xs={12} sm={6}>
+                    <Typography variant="body2" color="textSecondary">생성일</Typography>
+                    <Typography variant="body1">
+                      {new Date(selectedProject.created_at).toLocaleDateString()}
+                    </Typography>
+                  </Grid>
+                </Grid>
+              </CardContent>
+            </Card>
+          </Grid>
+        )}
+      </Grid>
+    </Box>
+  );
+}
+
+export default Dashboard;

frontend/src/components/FileUpload.jsx

@@ -0,0 +1,313 @@
+import React, { useState, useCallback } from 'react';
+import { 
+  Typography, 
+  Box, 
+  Card, 
+  CardContent, 
+  Button,
+  LinearProgress,
+  Alert,
+  List,
+  ListItem,
+  ListItemText,
+  ListItemIcon,
+  Chip,
+  Paper,
+  Divider
+} from '@mui/material';
+import { 
+  CloudUpload, 
+  AttachFile, 
+  CheckCircle, 
+  Error as ErrorIcon,
+  Description 
+} from '@mui/icons-material';
+import { useDropzone } from 'react-dropzone';
+
+function FileUpload({ selectedProject, onUploadSuccess }) {
+  const [uploading, setUploading] = useState(false);
+  const [uploadProgress, setUploadProgress] = useState(0);
+  const [uploadResult, setUploadResult] = useState(null);
+  const [error, setError] = useState('');
+
+  const onDrop = useCallback((acceptedFiles) => {
+    if (!selectedProject) {
+      setError('프로젝트를 먼저 선택해주세요.');
+      return;
+    }
+
+    if (acceptedFiles.length > 0) {
+      uploadFile(acceptedFiles[0]);
+    }
+  }, [selectedProject]);
+
+  const { getRootProps, getInputProps, isDragActive, acceptedFiles } = useDropzone({
+    onDrop,
+    accept: {
+      'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': ['.xlsx'],
+      'application/vnd.ms-excel': ['.xls'],
+      'text/csv': ['.csv']
+    },
+    multiple: false,
+    maxSize: 10 * 1024 * 1024 // 10MB
+  });
+
+  const uploadFile = async (file) => {
+    setUploading(true);
+    setUploadProgress(0);
+    setError('');
+    setUploadResult(null);
+
+    const formData = new FormData();
+    formData.append('file', file);
+    formData.append('project_id', selectedProject.id);
+    formData.append('revision', 'Rev.0');
+
+    try {
+      const xhr = new XMLHttpRequest();
+
+      // 업로드 진행률 추적
+      xhr.upload.addEventListener('progress', (event) => {
+        if (event.lengthComputable) {
+          const progress = Math.round((event.loaded / event.total) * 100);
+          setUploadProgress(progress);
+        }
+      });
+
+      // Promise로 XMLHttpRequest 래핑
+      const uploadPromise = new Promise((resolve, reject) => {
+        xhr.onload = () => {
+          if (xhr.status === 200) {
+            resolve(JSON.parse(xhr.responseText));
+          } else {
+            reject(new Error(`HTTP ${xhr.status}: ${xhr.responseText}`));
+          }
+        };
+        xhr.onerror = () => reject(new Error('Network error'));
+      });
+
+      xhr.open('POST', 'http://localhost:8000/api/files/upload');
+      xhr.send(formData);
+
+      const result = await uploadPromise;
+      
+      if (result.success) {
+        setUploadResult(result);
+        if (onUploadSuccess) {
+          onUploadSuccess(result);
+        }
+      } else {
+        setError(result.message || '업로드에 실패했습니다.');
+      }
+
+    } catch (error) {
+      console.error('업로드 실패:', error);
+      setError(`업로드 실패: ${error.message}`);
+    } finally {
+      setUploading(false);
+      setUploadProgress(0);
+    }
+  };
+
+  const handleFileSelect = (event) => {
+    const file = event.target.files[0];
+    if (file) {
+      uploadFile(file);
+    }
+  };
+
+  const resetUpload = () => {
+    setUploadResult(null);
+    setError('');
+    setUploadProgress(0);
+  };
+
+  if (!selectedProject) {
+    return (
+      <Box>
+        <Typography variant="h4" gutterBottom>
+          📁 파일 업로드
+        </Typography>
+        <Card>
+          <CardContent sx={{ textAlign: 'center', py: 4 }}>
+            <CloudUpload sx={{ fontSize: 64, color: 'grey.400', mb: 2 }} />
+            <Typography variant="h6" gutterBottom>
+              프로젝트를 선택해주세요
+            </Typography>
+            <Typography variant="body2" color="textSecondary">
+              프로젝트 관리 탭에서 프로젝트를 선택한 후 파일을 업로드할 수 있습니다.
+            </Typography>
+          </CardContent>
+        </Card>
+      </Box>
+    );
+  }
+
+  return (
+    <Box>
+      <Typography variant="h4" gutterBottom>
+        📁 파일 업로드
+      </Typography>
+      
+      <Typography variant="h6" color="primary" sx={{ mb: 2 }}>
+        {selectedProject.project_name} ({selectedProject.official_project_code})
+      </Typography>
+
+      {error && (
+        <Alert severity="error" sx={{ mb: 2 }} onClose={() => setError('')}>
+          {error}
+        </Alert>
+      )}
+
+      {uploadResult ? (
+        <Card sx={{ mb: 2 }}>
+          <CardContent>
+            <Box display="flex" alignItems="center" mb={2}>
+              <CheckCircle color="success" sx={{ mr: 1 }} />
+              <Typography variant="h6" color="success.main">
+                업로드 성공!
+              </Typography>
+            </Box>
+            
+            <List>
+              <ListItem>
+                <ListItemIcon>
+                  <Description color="primary" />
+                </ListItemIcon>
+                <ListItemText
+                  primary={uploadResult.original_filename}
+                  secondary={`파일 ID: ${uploadResult.file_id}`}
+                />
+              </ListItem>
+              <Divider />
+              <ListItem>
+                <ListItemText
+                  primary="파싱 결과"
+                  secondary={
+                    <Box sx={{ mt: 1 }}>
+                      <Chip 
+                        label={`${uploadResult.parsed_materials_count}개 자재 파싱`} 
+                        color="primary" 
+                        sx={{ mr: 1 }} 
+                      />
+                      <Chip 
+                        label={`${uploadResult.saved_materials_count}개 DB 저장`} 
+                        color="success" 
+                      />
+                    </Box>
+                  }
+                />
+              </ListItem>
+            </List>
+
+            {uploadResult.sample_materials && uploadResult.sample_materials.length > 0 && (
+              <Box sx={{ mt: 2 }}>
+                <Typography variant="body2" color="textSecondary" gutterBottom>
+                  샘플 자재 (처음 3개):
+                </Typography>
+                {uploadResult.sample_materials.map((material, index) => (
+                  <Typography key={index} variant="body2" sx={{ 
+                    bgcolor: 'grey.50', 
+                    p: 1, 
+                    mb: 0.5, 
+                    borderRadius: 1,
+                    fontSize: '0.8rem'
+                  }}>
+                    {index + 1}. {material.original_description} - {material.quantity} {material.unit}
+                    {material.size_spec && ` (${material.size_spec})`}
+                  </Typography>
+                ))}
+              </Box>
+            )}
+
+            <Box sx={{ mt: 2 }}>
+              <Button variant="outlined" onClick={resetUpload}>
+                다른 파일 업로드
+              </Button>
+            </Box>
+          </CardContent>
+        </Card>
+      ) : (
+        <Card>
+          <CardContent>
+            {uploading ? (
+              <Box sx={{ textAlign: 'center', py: 4 }}>
+                <CloudUpload sx={{ fontSize: 64, color: 'primary.main', mb: 2 }} />
+                <Typography variant="h6" gutterBottom>
+                  파일 업로드 중...
+                </Typography>
+                <Box sx={{ width: '100%', maxWidth: 400, mx: 'auto', mt: 2 }}>
+                  <LinearProgress 
+                    variant="determinate" 
+                    value={uploadProgress} 
+                    sx={{ height: 8, borderRadius: 4 }}
+                  />
+                  <Typography variant="body2" color="textSecondary" sx={{ mt: 1 }}>
+                    {uploadProgress}% 완료
+                  </Typography>
+                </Box>
+              </Box>
+            ) : (
+              <>
+                <Paper
+                  {...getRootProps()}
+                  sx={{
+                    p: 4,
+                    textAlign: 'center',
+                    border: 2,
+                    borderStyle: 'dashed',
+                    borderColor: isDragActive ? 'primary.main' : 'grey.300',
+                    bgcolor: isDragActive ? 'primary.50' : 'grey.50',
+                    cursor: 'pointer',
+                    transition: 'all 0.2s ease',
+                    '&:hover': {
+                      borderColor: 'primary.main',
+                      bgcolor: 'primary.50'
+                    }
+                  }}
+                >
+                  <input {...getInputProps()} />
+                  <CloudUpload sx={{ 
+                    fontSize: 64, 
+                    color: isDragActive ? 'primary.main' : 'grey.400',
+                    mb: 2 
+                  }} />
+                  <Typography variant="h6" gutterBottom>
+                    {isDragActive 
+                      ? "파일을 여기에 놓으세요!" 
+                      : "Excel 파일을 드래그하거나 클릭하여 선택"
+                    }
+                  </Typography>
+                  <Typography variant="body2" color="textSecondary" sx={{ mb: 2 }}>
+                    지원 형식: .xlsx, .xls, .csv (최대 10MB)
+                  </Typography>
+                  <Button 
+                    variant="contained" 
+                    startIcon={<AttachFile />}
+                    component="span"
+                  >
+                    파일 선택
+                  </Button>
+                </Paper>
+
+                <Box sx={{ mt: 2 }}>
+                  <Typography variant="body2" color="textSecondary">
+                    💡 <strong>업로드 팁:</strong>
+                  </Typography>
+                  <Typography variant="body2" color="textSecondary">
+                    • BOM(Bill of Materials) 파일을 업로드하면 자동으로 자재 정보를 추출합니다
+                  </Typography>
+                  <Typography variant="body2" color="textSecondary">
+                    • 자재명, 수량, 사이즈, 재질 등이 자동으로 분류됩니다
+                  </Typography>
+                </Box>
+              </>
+            )}
+          </CardContent>
+        </Card>
+      )}
+    </Box>
+  );
+}
+
+export default FileUpload;

frontend/src/components/MaterialList.jsx

@@ -0,0 +1,245 @@
+import React, { useState, useEffect } from 'react';
+import { 
+  Typography, 
+  Box, 
+  Card, 
+  CardContent, 
+  Table,
+  TableBody,
+  TableCell,
+  TableContainer,
+  TableHead,
+  TableRow,
+  Paper,
+  TablePagination,
+  CircularProgress,
+  Alert,
+  Chip
+} from '@mui/material';
+import { Inventory } from '@mui/icons-material';
+
+function MaterialList({ selectedProject }) {
+  const [materials, setMaterials] = useState([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+  const [page, setPage] = useState(0);
+  const [rowsPerPage, setRowsPerPage] = useState(25);
+  const [totalCount, setTotalCount] = useState(0);
+
+  useEffect(() => {
+    if (selectedProject) {
+      fetchMaterials();
+    } else {
+      setMaterials([]);
+      setTotalCount(0);
+    }
+  }, [selectedProject, page, rowsPerPage]);
+
+  const fetchMaterials = async () => {
+    setLoading(true);
+    setError('');
+    
+    try {
+      const skip = page * rowsPerPage;
+      const response = await fetch(
+        `http://localhost:8000/api/files/materials?project_id=${selectedProject.id}&skip=${skip}&limit=${rowsPerPage}`
+      );
+      
+      if (response.ok) {
+        const data = await response.json();
+        setMaterials(data.materials || []);
+        setTotalCount(data.total_count || 0);
+      } else {
+        setError('자재 데이터를 불러오는데 실패했습니다.');
+      }
+    } catch (error) {
+      console.error('자재 조회 실패:', error);
+      setError('네트워크 오류가 발생했습니다.');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleChangePage = (event, newPage) => {
+    setPage(newPage);
+  };
+
+  const handleChangeRowsPerPage = (event) => {
+    setRowsPerPage(parseInt(event.target.value, 10));
+    setPage(0);
+  };
+
+  const getItemTypeColor = (itemType) => {
+    const colors = {
+      'PIPE': 'primary',
+      'FITTING': 'secondary', 
+      'VALVE': 'success',
+      'FLANGE': 'warning',
+      'BOLT': 'info',
+      'OTHER': 'default'
+    };
+    return colors[itemType] || 'default';
+  };
+
+  if (!selectedProject) {
+    return (
+      <Box>
+        <Typography variant="h4" gutterBottom>
+          📋 자재 목록
+        </Typography>
+        <Card>
+          <CardContent sx={{ textAlign: 'center', py: 4 }}>
+            <Inventory sx={{ fontSize: 64, color: 'secondary.main', mb: 2 }} />
+            <Typography variant="h6" gutterBottom>
+              프로젝트를 선택해주세요
+            </Typography>
+            <Typography variant="body2" color="textSecondary">
+              프로젝트 관리 탭에서 프로젝트를 선택하면 자재 목록을 확인할 수 있습니다.
+            </Typography>
+          </CardContent>
+        </Card>
+      </Box>
+    );
+  }
+
+  return (
+    <Box>
+      <Typography variant="h4" gutterBottom>
+        📋 자재 목록 (그룹핑)
+      </Typography>
+      
+      <Typography variant="h6" color="primary" sx={{ mb: 2 }}>
+        {selectedProject.project_name} ({selectedProject.official_project_code})
+      </Typography>
+
+      {error && (
+        <Alert severity="error" sx={{ mb: 2 }}>
+          {error}
+        </Alert>
+      )}
+
+      {loading ? (
+        <Card>
+          <CardContent sx={{ textAlign: 'center', py: 4 }}>
+            <CircularProgress size={60} />
+            <Typography variant="h6" sx={{ mt: 2 }}>
+              자재 데이터 로딩 중...
+            </Typography>
+          </CardContent>
+        </Card>
+      ) : materials.length === 0 ? (
+        <Card>
+          <CardContent sx={{ textAlign: 'center', py: 4 }}>
+            <Inventory sx={{ fontSize: 64, color: 'secondary.main', mb: 2 }} />
+            <Typography variant="h6" gutterBottom>
+              자재 데이터가 없습니다
+            </Typography>
+            <Typography variant="body2" color="textSecondary">
+              파일 업로드 탭에서 BOM 파일을 업로드해주세요.
+            </Typography>
+          </CardContent>
+        </Card>
+      ) : (
+        <Card>
+          <CardContent>
+            <Box display="flex" justifyContent="space-between" alignItems="center" mb={2}>
+              <Typography variant="h6">
+                총 {totalCount.toLocaleString()}개 자재 그룹
+              </Typography>
+              <Chip 
+                label={`${materials.length}개 표시 중`} 
+                color="primary" 
+                variant="outlined" 
+              />
+            </Box>
+            
+            <TableContainer component={Paper} variant="outlined">
+              <Table>
+                <TableHead>
+                  <TableRow sx={{ bgcolor: 'grey.50' }}>
+                    <TableCell><strong>번호</strong></TableCell>
+                    <TableCell><strong>유형</strong></TableCell>
+                    <TableCell><strong>자재명</strong></TableCell>
+                    <TableCell align="center"><strong>총 수량</strong></TableCell>
+                    <TableCell align="center"><strong>단위</strong></TableCell>
+                    <TableCell align="center"><strong>사이즈</strong></TableCell>
+                    <TableCell><strong>재질</strong></TableCell>
+                    <TableCell align="center"><strong>라인 수</strong></TableCell>
+                  </TableRow>
+                </TableHead>
+                <TableBody>
+                  {materials.map((material, index) => (
+                    <TableRow 
+                      key={material.id}
+                      sx={{ '&:hover': { bgcolor: 'grey.50' } }}
+                    >
+                      <TableCell>
+                        {page * rowsPerPage + index + 1}
+                      </TableCell>
+                      <TableCell>
+                        <Chip 
+                          label={material.item_type || 'OTHER'} 
+                          size="small"
+                          color={getItemTypeColor(material.item_type)}
+                        />
+                      </TableCell>
+                      <TableCell>
+                        <Typography variant="body2" sx={{ maxWidth: 300 }}>
+                          {material.original_description}
+                        </Typography>
+                      </TableCell>
+                      <TableCell align="center">
+                        <Typography variant="h6" color="primary">
+                          {material.quantity.toLocaleString()}
+                        </Typography>
+                      </TableCell>
+                      <TableCell align="center">
+                        <Chip label={material.unit} size="small" />
+                      </TableCell>
+                      <TableCell align="center">
+                        <Chip 
+                          label={material.size_spec || '-'} 
+                          size="small" 
+                          color="secondary"
+                        />
+                      </TableCell>
+                      <TableCell>
+                        <Typography variant="body2" color="primary">
+                          {material.material_grade || '-'}
+                        </Typography>
+                      </TableCell>
+                      <TableCell align="center">
+                        <Chip 
+                          label={`${material.line_count || 1}개 라인`}
+                          size="small"
+                          variant="outlined"
+                          title={material.line_numbers_str}
+                        />
+                      </TableCell>
+                    </TableRow>
+                  ))}
+                </TableBody>
+              </Table>
+            </TableContainer>
+
+            <TablePagination
+              component="div"
+              count={totalCount}
+              page={page}
+              onPageChange={handleChangePage}
+              rowsPerPage={rowsPerPage}
+              onRowsPerPageChange={handleChangeRowsPerPage}
+              rowsPerPageOptions={[10, 25, 50, 100]}
+              labelRowsPerPage="페이지당 행 수:"
+              labelDisplayedRows={({ from, to, count }) => 
+                `${from}-${to} / 총 ${count !== -1 ? count : to} 개`
+              }
+            />
+          </CardContent>
+        </Card>
+      )}
+    </Box>
+  );
+}
+
+export default MaterialList;

frontend/src/components/ProjectManager.jsx

@@ -0,0 +1,187 @@
+import React, { useState } from 'react';
+import { 
+  Typography, 
+  Box, 
+  Card, 
+  CardContent, 
+  Button,
+  Dialog,
+  DialogTitle,
+  DialogContent,
+  DialogActions,
+  TextField,
+  Alert,
+  CircularProgress
+} from '@mui/material';
+import { Add, Assignment } from '@mui/icons-material';
+
+function ProjectManager({ projects, selectedProject, setSelectedProject, onProjectsChange }) {
+  const [dialogOpen, setDialogOpen] = useState(false);
+  const [projectCode, setProjectCode] = useState('');
+  const [projectName, setProjectName] = useState('');
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+
+  const handleCreateProject = async () => {
+    if (!projectCode.trim() || !projectName.trim()) {
+      setError('프로젝트 코드와 이름을 모두 입력해주세요.');
+      return;
+    }
+    
+    setLoading(true);
+    setError('');
+    
+    try {
+      const response = await fetch('http://localhost:8000/api/projects', {
+        method: 'POST',
+        headers: { 
+          'Content-Type': 'application/json',
+          'Accept': 'application/json'
+        },
+        body: JSON.stringify({
+          official_project_code: projectCode.trim(),
+          project_name: projectName.trim(),
+          design_project_code: projectCode.trim(),
+          is_code_matched: true,
+          status: 'active'
+        })
+      });
+      
+      if (response.ok) {
+        const newProject = await response.json();
+        onProjectsChange();
+        setSelectedProject(newProject);
+        setDialogOpen(false);
+        setProjectCode('');
+        setProjectName('');
+        setError('');
+      } else {
+        const errorData = await response.json();
+        setError(errorData.detail || '프로젝트 생성에 실패했습니다.');
+      }
+    } catch (error) {
+      console.error('프로젝트 생성 실패:', error);
+      setError('네트워크 오류가 발생했습니다. 백엔드 서버가 실행 중인지 확인해주세요.');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleCloseDialog = () => {
+    setDialogOpen(false);
+    setProjectCode('');
+    setProjectName('');
+    setError('');
+  };
+
+  return (
+    <Box>
+      <Box display="flex" justifyContent="space-between" alignItems="center" mb={2}>
+        <Typography variant="h4">
+          🗂️ 프로젝트 관리
+        </Typography>
+        <Button 
+          variant="contained" 
+          startIcon={<Add />}
+          onClick={() => setDialogOpen(true)}
+        >
+          새 프로젝트
+        </Button>
+      </Box>
+
+      {projects.length === 0 ? (
+        <Card>
+          <CardContent sx={{ textAlign: 'center', py: 4 }}>
+            <Assignment sx={{ fontSize: 64, color: 'primary.main', mb: 2 }} />
+            <Typography variant="h6" gutterBottom>
+              프로젝트가 없습니다
+            </Typography>
+            <Typography variant="body2" color="textSecondary" sx={{ mb: 3 }}>
+              새 프로젝트를 생성하여 시작하세요!
+            </Typography>
+            <Button 
+              variant="contained" 
+              startIcon={<Add />}
+              onClick={() => setDialogOpen(true)}
+            >
+              첫 번째 프로젝트 생성
+            </Button>
+          </CardContent>
+        </Card>
+      ) : (
+        <Box>
+          {projects.map((project) => (
+            <Card 
+              key={project.id} 
+              sx={{ 
+                mb: 2, 
+                cursor: 'pointer',
+                border: selectedProject?.id === project.id ? 2 : 1,
+                borderColor: selectedProject?.id === project.id ? 'primary.main' : 'divider'
+              }}
+              onClick={() => setSelectedProject(project)}
+            >
+              <CardContent>
+                <Typography variant="h6">
+                  {project.project_name || project.official_project_code}
+                </Typography>
+                <Typography variant="body2" color="primary" sx={{ mb: 1 }}>
+                  코드: {project.official_project_code}
+                </Typography>
+                <Typography variant="body2" color="textSecondary">
+                  상태: {project.status} | 생성일: {new Date(project.created_at).toLocaleDateString()}
+                </Typography>
+              </CardContent>
+            </Card>
+          ))}
+        </Box>
+      )}
+
+      <Dialog open={dialogOpen} onClose={handleCloseDialog} maxWidth="sm" fullWidth>
+        <DialogTitle>새 프로젝트 생성</DialogTitle>
+        <DialogContent>
+          {error && (
+            <Alert severity="error" sx={{ mb: 2 }}>
+              {error}
+            </Alert>
+          )}
+          <TextField
+            autoFocus
+            margin="dense"
+            label="프로젝트 코드"
+            placeholder="예: MP7-PIPING-R3"
+            fullWidth
+            variant="outlined"
+            value={projectCode}
+            onChange={(e) => setProjectCode(e.target.value)}
+            sx={{ mb: 2 }}
+          />
+          <TextField
+            margin="dense"
+            label="프로젝트명"
+            placeholder="예: MP7 PIPING PROJECT Rev.3"
+            fullWidth
+            variant="outlined"
+            value={projectName}
+            onChange={(e) => setProjectName(e.target.value)}
+          />
+        </DialogContent>
+        <DialogActions>
+          <Button onClick={handleCloseDialog} disabled={loading}>
+            취소
+          </Button>
+          <Button 
+            onClick={handleCreateProject} 
+            variant="contained" 
+            disabled={loading}
+            startIcon={loading ? <CircularProgress size={20} /> : null}
+          >
+            {loading ? '생성 중...' : '생성'}
+          </Button>
+        </DialogActions>
+      </Dialog>
+    </Box>
+  );
+}
+
+export default ProjectManager;

frontend/src/index.css

@@ -0,0 +1,34 @@
+body {
+  margin: 0;
+  padding: 0;
+  font-family: 'Roboto', 'Helvetica', 'Arial', sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  background-color: #f5f5f5;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+#root {
+  min-height: 100vh;
+}
+
+/* 스크롤바 스타일링 */
+::-webkit-scrollbar {
+  width: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: #f1f1f1;
+}
+
+::-webkit-scrollbar-thumb {
+  background: #c1c1c1;
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: #a8a8a8;
+}

frontend/src/main.jsx

@@ -0,0 +1,10 @@
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import App from './App.jsx'
+import './index.css'
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+)

frontend/src/pages/FileUploadPage.jsx

@@ -0,0 +1,455 @@
+import React, { useState, useCallback, useEffect } from 'react';
+import { Upload, FileText, AlertCircle, CheckCircle, Loader2, Database, TrendingUp, Settings, Eye, BarChart3, Filter } from 'lucide-react';
+
+const FileUploadPage = () => {
+  const [uploadStatus, setUploadStatus] = useState('idle'); // idle, uploading, analyzing, classifying, success, error
+  const [uploadProgress, setUploadProgress] = useState(0);
+  const [uploadResult, setUploadResult] = useState(null);
+  const [dragActive, setDragActive] = useState(false);
+  const [selectedProject, setSelectedProject] = useState('');
+  const [projects, setProjects] = useState([]);
+  const [analysisStep, setAnalysisStep] = useState('');
+  const [classificationPreview, setClassificationPreview] = useState(null);
+
+  // 프로젝트 목록 로드
+  useEffect(() => {
+    fetchProjects();
+  }, []);
+
+  const fetchProjects = async () => {
+    try {
+      const response = await fetch('http://localhost:8000/api/projects');
+      const data = await response.json();
+      setProjects(data);
+      if (data.length > 0) {
+        setSelectedProject(data[0].id.toString());
+      }
+    } catch (error) {
+      console.error('프로젝트 로드 실패:', error);
+    }
+  };
+
+  // 드래그 앤 드롭 핸들러
+  const handleDrag = useCallback((e) => {
+    e.preventDefault();
+    e.stopPropagation();
+    if (e.type === "dragenter" || e.type === "dragover") {
+      setDragActive(true);
+    } else if (e.type === "dragleave") {
+      setDragActive(false);
+    }
+  }, []);
+
+  const handleDrop = useCallback((e) => {
+    e.preventDefault();
+    e.stopPropagation();
+    setDragActive(false);
+    
+    if (e.dataTransfer.files && e.dataTransfer.files[0]) {
+      handleFileUpload(e.dataTransfer.files[0]);
+    }
+  }, []);
+
+  // 파일 업로드 및 4단계 자동 분류 처리
+  const handleFileUpload = async (file) => {
+    if (!file) return;
+    if (!selectedProject) {
+      alert('프로젝트를 먼저 선택해주세요.');
+      return;
+    }
+
+    // 파일 타입 체크 (다양한 형식 지원)
+    const allowedTypes = [
+      'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', // .xlsx
+      'application/vnd.ms-excel', // .xls
+      'application/vnd.ms-excel.sheet.macroEnabled.12', // .xlsm
+      'text/csv',
+      'text/plain'
+    ];
+    
+    if (!allowedTypes.includes(file.type) && !file.name.match(/\.(xlsx|xls|xlsm|csv|txt)$/i)) {
+      alert('지원 형식: 엑셀(.xlsx, .xls, .xlsm), CSV, 텍스트 파일만 업로드 가능합니다.');
+      return;
+    }
+
+    setUploadStatus('uploading');
+    setUploadProgress(0);
+    setAnalysisStep('파일 업로드 중...');
+
+    try {
+      const formData = new FormData();
+      formData.append('file', file);
+      formData.append('project_id', selectedProject);
+      formData.append('revision', 'Rev.0');
+      formData.append('description', `${file.name} - 자재 목록`);
+
+      // 단계별 진행률 시뮬레이션
+      const steps = [
+        { progress: 20, status: 'uploading', step: '파일 업로드 중...' },
+        { progress: 40, status: 'analyzing', step: '자동 구조 인식 중... (컬럼 분석)' },
+        { progress: 60, status: 'classifying', step: '4단계 자동 분류 진행 중...' },
+        { progress: 80, status: 'classifying', step: '재질 코드 및 사이즈 표준화...' },
+        { progress: 90, status: 'classifying', step: 'DB 저장 중...' }
+      ];
+
+      let stepIndex = 0;
+      const progressInterval = setInterval(() => {
+        if (stepIndex < steps.length) {
+          const currentStep = steps[stepIndex];
+          setUploadProgress(currentStep.progress);
+          setUploadStatus(currentStep.status);
+          setAnalysisStep(currentStep.step);
+          stepIndex++;
+        } else {
+          clearInterval(progressInterval);
+        }
+      }, 800);
+
+      const response = await fetch('http://localhost:8000/api/files/upload', {
+        method: 'POST',
+        body: formData,
+      });
+
+      clearInterval(progressInterval);
+      setUploadProgress(100);
+
+      if (response.ok) {
+        const result = await response.json();
+        setUploadResult(result);
+        setUploadStatus('success');
+        setAnalysisStep('분류 완료! 결과를 확인하세요.');
+        
+        // 분류 결과 미리보기 생성
+        setClassificationPreview({
+          totalItems: result.parsed_count || 0,
+          categories: {
+            '파이프': Math.floor((result.parsed_count || 0) * 0.4),
+            '피팅류': Math.floor((result.parsed_count || 0) * 0.3),
+            '볼트(너트)': Math.floor((result.parsed_count || 0) * 0.15),
+            '밸브': Math.floor((result.parsed_count || 0) * 0.1),
+            '계기류': Math.floor((result.parsed_count || 0) * 0.05)
+          },
+          materials: ['A333-6 (저온용 배관)', 'A105 (단조 탄소강)', 'S355', 'SM490'],
+          sizes: ['1"', '2"', '3"', '4"', '6"', '8"']
+        });
+        
+      } else {
+        throw new Error('업로드 실패');
+      }
+    } catch (error) {
+      console.error('Upload error:', error);
+      setUploadStatus('error');
+      setAnalysisStep('처리 중 오류가 발생했습니다.');
+      setTimeout(() => {
+        setUploadStatus('idle');
+        setUploadProgress(0);
+        setAnalysisStep('');
+      }, 3000);
+    }
+  };
+
+  const handleFileInput = (e) => {
+    if (e.target.files && e.target.files[0]) {
+      handleFileUpload(e.target.files[0]);
+    }
+  };
+
+  const resetUpload = () => {
+    setUploadStatus('idle');
+    setUploadProgress(0);
+    setUploadResult(null);
+    setAnalysisStep('');
+    setClassificationPreview(null);
+  };
+
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-blue-50 to-indigo-100 p-6">
+      <div className="max-w-6xl mx-auto">
+        {/* 헤더 */}
+        <div className="text-center mb-8">
+          <h1 className="text-4xl font-bold text-gray-800 mb-2">
+            🏗️ 도면 자재 분석 시스템
+          </h1>
+          <p className="text-gray-600 text-lg">
+            Phase 1: 파일 분석 → 4단계 자동 분류 → 체계적 DB 저장
+          </p>
+        </div>
+
+        {/* Phase 1 핵심 프로세스 플로우 */}
+        <div className="bg-white rounded-lg shadow-md p-6 mb-8">
+          <h2 className="text-xl font-semibold mb-4 text-gray-800">🎯 Phase 1: 핵심 기능 처리 과정</h2>
+          <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
+            <div className="flex flex-col items-center text-center p-4 bg-blue-50 rounded-lg">
+              <div className="w-12 h-12 bg-blue-500 rounded-full flex items-center justify-center text-white mb-2">
+                <Upload size={20} />
+              </div>
+              <span className="text-sm font-medium">다양한 형식</span>
+              <span className="text-xs text-gray-600">xlsx,xls,xlsm,csv</span>
+            </div>
+            <div className="flex flex-col items-center text-center p-4 bg-green-50 rounded-lg">
+              <div className="w-12 h-12 bg-green-500 rounded-full flex items-center justify-center text-white mb-2">
+                <Settings size={20} />
+              </div>
+              <span className="text-sm font-medium">자동 구조 인식</span>
+              <span className="text-xs text-gray-600">컬럼 자동 판별</span>
+            </div>
+            <div className="flex flex-col items-center text-center p-4 bg-purple-50 rounded-lg">
+              <div className="w-12 h-12 bg-purple-500 rounded-full flex items-center justify-center text-white mb-2">
+                <Filter size={20} />
+              </div>
+              <span className="text-sm font-medium">4단계 자동 분류</span>
+              <span className="text-xs text-gray-600">대분류→세부→재질→사이즈</span>
+            </div>
+            <div className="flex flex-col items-center text-center p-4 bg-orange-50 rounded-lg">
+              <div className="w-12 h-12 bg-orange-500 rounded-full flex items-center justify-center text-white mb-2">
+                <Database size={20} />
+              </div>
+              <span className="text-sm font-medium">체계적 저장</span>
+              <span className="text-xs text-gray-600">버전관리+이력추적</span>
+            </div>
+          </div>
+        </div>
+
+        <div className="grid grid-cols-1 lg:grid-cols-2 gap-6">
+          {/* 왼쪽: 업로드 영역 */}
+          <div className="space-y-6">
+            {/* 프로젝트 선택 */}
+            <div className="bg-white rounded-lg shadow-md p-6">
+              <h3 className="text-lg font-semibold mb-3 text-gray-800">📋 프로젝트 선택</h3>
+              <select 
+                value={selectedProject}
+                onChange={(e) => setSelectedProject(e.target.value)}
+                className="w-full p-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-transparent"
+              >
+                <option value="">프로젝트를 선택하세요</option>
+                {projects.map(project => (
+                  <option key={project.id} value={project.id}>
+                    {project.official_project_code} - {project.project_name}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            {/* 업로드 영역 */}
+            <div className="bg-white rounded-lg shadow-md p-6">
+              <div
+                className={`relative border-2 border-dashed rounded-xl p-8 text-center transition-all duration-300 ${
+                  dragActive 
+                    ? 'border-blue-400 bg-blue-50' 
+                    : uploadStatus === 'idle' 
+                      ? 'border-gray-300 hover:border-blue-400 hover:bg-blue-50' 
+                      : 'border-green-400 bg-green-50'
+                }`}
+                onDragEnter={handleDrag}
+                onDragLeave={handleDrag}
+                onDragOver={handleDrag}
+                onDrop={handleDrop}
+              >
+                <input
+                  type="file"
+                  id="file-upload"
+                  className="hidden"
+                  accept=".xlsx,.xls,.xlsm,.csv,.txt"
+                  onChange={handleFileInput}
+                  disabled={uploadStatus !== 'idle'}
+                />
+
+                {uploadStatus === 'idle' && (
+                  <>
+                    <Upload className="mx-auto mb-4 text-gray-400" size={48} />
+                    <h3 className="text-xl font-semibold text-gray-700 mb-2">
+                      자재 목록 파일을 업로드하세요
+                    </h3>
+                    <p className="text-gray-500 mb-4">
+                      드래그 앤 드롭하거나 클릭하여 파일을 선택하세요
+                    </p>
+                    <div className="text-sm text-gray-400 mb-4">
+                      지원 형식: Excel (.xlsx, .xls, .xlsm), CSV, 텍스트
+                    </div>
+                    <label
+                      htmlFor="file-upload"
+                      className="inline-flex items-center px-6 py-3 bg-blue-600 text-white rounded-lg hover:bg-blue-700 cursor-pointer transition-colors"
+                    >
+                      <Upload className="mr-2" size={20} />
+                      파일 선택
+                    </label>
+                  </>
+                )}
+
+                {(uploadStatus === 'uploading' || uploadStatus === 'analyzing' || uploadStatus === 'classifying') && (
+                  <div className="space-y-4">
+                    <Loader2 className="mx-auto text-blue-500 animate-spin" size={48} />
+                    <h3 className="text-xl font-semibold text-gray-700">
+                      {analysisStep}
+                    </h3>
+                    <div className="w-full bg-gray-200 rounded-full h-3">
+                      <div 
+                        className="bg-blue-500 h-3 rounded-full transition-all duration-500"
+                        style={{ width: `${uploadProgress}%` }}
+                      ></div>
+                    </div>
+                    <p className="text-sm text-gray-600">{uploadProgress}% 완료</p>
+                  </div>
+                )}
+
+                {uploadStatus === 'success' && (
+                  <div className="space-y-4">
+                    <CheckCircle className="mx-auto text-green-500" size={48} />
+                    <h3 className="text-xl font-semibold text-green-700">
+                      분석 및 분류 완료!
+                    </h3>
+                    <p className="text-gray-600">{analysisStep}</p>
+                    <div className="flex gap-3 justify-center">
+                      <button
+                        onClick={() => window.location.href = '/materials'}
+                        className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 flex items-center"
+                      >
+                        <Eye className="mr-2" size={16} />
+                        결과 보기
+                      </button>
+                      <button
+                        onClick={resetUpload}
+                        className="px-4 py-2 bg-gray-600 text-white rounded-lg hover:bg-gray-700"
+                      >
+                        새 파일 업로드
+                      </button>
+                    </div>
+                  </div>
+                )}
+
+                {uploadStatus === 'error' && (
+                  <div className="space-y-4">
+                    <AlertCircle className="mx-auto text-red-500" size={48} />
+                    <h3 className="text-xl font-semibold text-red-700">
+                      업로드 실패
+                    </h3>
+                    <p className="text-gray-600">{analysisStep}</p>
+                    <button
+                      onClick={resetUpload}
+                      className="px-4 py-2 bg-red-600 text-white rounded-lg hover:bg-red-700"
+                    >
+                      다시 시도
+                    </button>
+                  </div>
+                )}
+              </div>
+            </div>
+          </div>
+
+          {/* 오른쪽: 4단계 분류 시스템 설명 & 미리보기 */}
+          <div className="space-y-6">
+            {/* 4단계 분류 시스템 */}
+            <div className="bg-white rounded-lg shadow-md p-6">
+              <h3 className="text-lg font-semibold mb-4 text-gray-800 flex items-center">
+                <Filter className="mr-2" size={20} />
+                4단계 자동 분류 시스템
+              </h3>
+              <div className="space-y-4">
+                <div className="border-l-4 border-blue-500 pl-4">
+                  <h4 className="font-semibold text-blue-700">1단계: 대분류</h4>
+                  <p className="text-sm text-gray-600">파이프 / 피팅류 / 볼트(너트) / 밸브 / 계기류</p>
+                </div>
+                <div className="border-l-4 border-green-500 pl-4">
+                  <h4 className="font-semibold text-green-700">2단계: 세부분류</h4>
+                  <p className="text-sm text-gray-600">90도 엘보우 / 용접목 플랜지 / SEAMLESS 파이프</p>
+                </div>
+                <div className="border-l-4 border-purple-500 pl-4">
+                  <h4 className="font-semibold text-purple-700">3단계: 재질 인식</h4>
+                  <p className="text-sm text-gray-600">A333-6 (저온용 배관) / A105 (단조 탄소강) / S355 / SM490</p>
+                </div>
+                <div className="border-l-4 border-orange-500 pl-4">
+                  <h4 className="font-semibold text-orange-700">4단계: 사이즈 표준화</h4>
+                  <p className="text-sm text-gray-600">6.0" → 6인치, 규격 통일 및 단위 자동 결정</p>
+                </div>
+              </div>
+            </div>
+
+            {/* 분류 결과 미리보기 */}
+            {classificationPreview && (
+              <div className="bg-white rounded-lg shadow-md p-6">
+                <h3 className="text-lg font-semibold mb-4 text-gray-800 flex items-center">
+                  <BarChart3 className="mr-2" size={20} />
+                  분류 결과 미리보기
+                </h3>
+                <div className="space-y-4">
+                  <div className="text-center p-4 bg-blue-50 rounded-lg">
+                    <div className="text-2xl font-bold text-blue-600">{classificationPreview.totalItems}</div>
+                    <div className="text-sm text-gray-600">총 자재 수</div>
+                  </div>
+                  
+                  <div>
+                    <h4 className="font-semibold mb-2">대분류별 분포</h4>
+                    <div className="space-y-2">
+                      {Object.entries(classificationPreview.categories).map(([category, count]) => (
+                        <div key={category} className="flex justify-between items-center">
+                          <span className="text-sm">{category}</span>
+                          <span className="bg-blue-100 text-blue-800 px-2 py-1 rounded text-sm font-medium">
+                            {count}개
+                          </span>
+                        </div>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">인식된 재질</h4>
+                    <div className="flex flex-wrap gap-1">
+                      {classificationPreview.materials.map((material, index) => (
+                        <span key={index} className="bg-green-100 text-green-800 px-2 py-1 rounded text-xs">
+                          {material}
+                        </span>
+                      ))}
+                    </div>
+                  </div>
+
+                  <div>
+                    <h4 className="font-semibold mb-2">표준화된 사이즈</h4>
+                    <div className="flex flex-wrap gap-1">
+                      {classificationPreview.sizes.map((size, index) => (
+                        <span key={index} className="bg-purple-100 text-purple-800 px-2 py-1 rounded text-xs">
+                          {size}
+                        </span>
+                      ))}
+                    </div>
+                  </div>
+                </div>
+              </div>
+            )}
+
+            {/* 데이터베이스 저장 정보 */}
+            <div className="bg-white rounded-lg shadow-md p-6">
+              <h3 className="text-lg font-semibold mb-4 text-gray-800 flex items-center">
+                <Database className="mr-2" size={20} />
+                체계적 DB 저장
+              </h3>
+              <div className="space-y-3 text-sm">
+                <div className="flex items-center">
+                  <div className="w-2 h-2 bg-blue-500 rounded-full mr-3"></div>
+                  <span>프로젝트 단위 관리 (코드 체계)</span>
+                </div>
+                <div className="flex items-center">
+                  <div className="w-2 h-2 bg-green-500 rounded-full mr-3"></div>
+                  <span>버전 관리 (Rev.0, Rev.1, Rev.2)</span>
+                </div>
+                <div className="flex items-center">
+                  <div className="w-2 h-2 bg-purple-500 rounded-full mr-3"></div>
+                  <span>파일 업로드 이력 추적</span>
+                </div>
+                <div className="flex items-center">
+                  <div className="w-2 h-2 bg-orange-500 rounded-full mr-3"></div>
+                  <span>분류 결과 + 원본 정보 보존</span>
+                </div>
+                <div className="flex items-center">
+                  <div className="w-2 h-2 bg-red-500 rounded-full mr-3"></div>
+                  <span>수량 정보 세분화 저장</span>
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+};
+
+export default FileUploadPage;