Change Alur Aplikasi

app/api/keloladata/data-mahasiswa/route.ts

@@ -0,0 +1,241 @@
+import { NextRequest, NextResponse } from 'next/server';
+import supabase from '@/lib/db';
+
+// GET - Fetch all mahasiswa or a specific one by NIM
+export async function GET(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const nim = searchParams.get('nim');
+
+    if (nim) {
+      // Fetch specific mahasiswa by NIM with joins
+      const { data, error } = await supabase
+        .from('mahasiswa')
+        .select(`
+          *,
+          kelompok_keahlian!id_kelompok_keahlian(id_kk, nama_kelompok)
+        `)
+        .eq('nim', nim)
+        .single();
+
+      if (error || !data) {
+        return NextResponse.json({ message: 'Mahasiswa not found' }, { status: 404 });
+      }
+
+      // Transform the data to flatten the joined fields
+      const transformedData = {
+        ...data,
+        nama_kelompok_keahlian: data.kelompok_keahlian?.nama_kelompok || null
+      };
+      delete transformedData.kelompok_keahlian;
+
+      return NextResponse.json(transformedData);
+    } else {
+      // Fetch all mahasiswa with joins
+      const { data, error } = await supabase
+        .from('mahasiswa')
+        .select(`
+          *,
+          kelompok_keahlian!id_kelompok_keahlian(id_kk, nama_kelompok)
+        `)
+        .order('nim');
+
+      if (error) {
+        console.error('Error fetching data:', error);
+        return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+      }
+
+      // Transform the data to flatten the joined fields
+      const transformedData = data.map(item => ({
+        ...item,
+        nama_kelompok_keahlian: item.kelompok_keahlian?.nama_kelompok || null
+      })).map(({ kelompok_keahlian, ...rest }) => rest);
+
+      return NextResponse.json(transformedData);
+    }
+  } catch (error) {
+    console.error('Error fetching data:', error);
+    return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+  }
+}
+
+// POST - Create a new mahasiswa
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const {
+      nim,
+      nama,
+      jk,
+      agama,
+      kabupaten,
+      provinsi,
+      jenis_pendaftaran,
+      tahun_angkatan,
+      ipk,
+      id_kelompok_keahlian,
+      status_kuliah,
+      semester
+    } = body;
+
+    // Validate required fields
+    if (!nim || !nama || !jk || !tahun_angkatan) {
+      return NextResponse.json(
+        { message: 'Missing required fields: nim, nama, jk, tahun_angkatan' },
+        { status: 400 }
+      );
+    }
+
+    // Check if mahasiswa already exists
+    const { data: existing, error: checkError } = await supabase
+      .from('mahasiswa')
+      .select('nim')
+      .eq('nim', nim)
+      .single();
+
+    if (existing) {
+      return NextResponse.json(
+        { message: 'Mahasiswa with this NIM already exists' },
+        { status: 409 }
+      );
+    }
+
+    // Insert new mahasiswa
+    const { data, error } = await supabase
+      .from('mahasiswa')
+      .insert({
+        nim,
+        nama,
+        jk,
+        agama: agama || null,
+        kabupaten: kabupaten || null,
+        provinsi: provinsi || null,
+        jenis_pendaftaran: jenis_pendaftaran || null,
+        tahun_angkatan,
+        ipk: ipk || null,
+        id_kelompok_keahlian: id_kelompok_keahlian || null,
+        status_kuliah: status_kuliah || "Aktif",
+        semester: semester || 1
+      })
+      .select()
+      .single();
+
+    if (error) {
+      console.error('Error creating mahasiswa:', error);
+      return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+    }
+
+    return NextResponse.json(
+      { message: 'Mahasiswa created successfully', nim },
+      { status: 201 }
+    );
+  } catch (error) {
+    console.error('Error creating mahasiswa:', error);
+    return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+  }
+}
+
+// PUT - Update an existing mahasiswa
+export async function PUT(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const nim = searchParams.get('nim');
+
+    if (!nim) {
+      return NextResponse.json({ message: 'NIM is required' }, { status: 400 });
+    }
+
+    const body = await request.json();
+    const {
+      nama,
+      jk,
+      agama,
+      kabupaten,
+      provinsi,
+      jenis_pendaftaran,
+      tahun_angkatan,
+      ipk,
+      id_kelompok_keahlian,
+      status_kuliah,
+      semester
+    } = body;
+
+    // Check if mahasiswa exists
+    const { data: existing, error: checkError } = await supabase
+      .from('mahasiswa')
+      .select('*')
+      .eq('nim', nim)
+      .single();
+
+    if (checkError || !existing) {
+      return NextResponse.json({ message: 'Mahasiswa not found' }, { status: 404 });
+    }
+
+    // Update mahasiswa
+    const { error } = await supabase
+      .from('mahasiswa')
+      .update({
+        nama: nama || existing.nama,
+        jk: jk || existing.jk,
+        agama: agama || existing.agama,
+        kabupaten: kabupaten || existing.kabupaten,
+        provinsi: provinsi || existing.provinsi,
+        jenis_pendaftaran: jenis_pendaftaran || existing.jenis_pendaftaran,
+        tahun_angkatan: tahun_angkatan || existing.tahun_angkatan,
+        ipk: ipk || existing.ipk,
+        id_kelompok_keahlian: id_kelompok_keahlian || existing.id_kelompok_keahlian,
+        status_kuliah: status_kuliah || existing.status_kuliah,
+        semester: semester || existing.semester
+      })
+      .eq('nim', nim);
+
+    if (error) {
+      console.error('Error updating mahasiswa:', error);
+      return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+    }
+
+    return NextResponse.json({ message: 'Mahasiswa updated successfully', nim });
+  } catch (error) {
+    console.error('Error updating mahasiswa:', error);
+    return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+  }
+}
+
+// DELETE - Delete a mahasiswa
+export async function DELETE(request: NextRequest) {
+  try {
+    const { searchParams } = new URL(request.url);
+    const nim = searchParams.get('nim');
+
+    if (!nim) {
+      return NextResponse.json({ message: 'NIM is required' }, { status: 400 });
+    }
+
+    // Check if mahasiswa exists
+    const { data: existing, error: checkError } = await supabase
+      .from('mahasiswa')
+      .select('nim')
+      .eq('nim', nim)
+      .single();
+
+    if (checkError || !existing) {
+      return NextResponse.json({ message: 'Mahasiswa not found' }, { status: 404 });
+    }
+
+    // Delete mahasiswa
+    const { error } = await supabase
+      .from('mahasiswa')
+      .delete()
+      .eq('nim', nim);
+
+    if (error) {
+      console.error('Error deleting mahasiswa:', error);
+      return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+    }
+
+    return NextResponse.json({ message: 'Mahasiswa deleted successfully' });
+  } catch (error) {
+    console.error('Error deleting mahasiswa:', error);
+    return NextResponse.json({ message: 'Internal Server Error' }, { status: 500 });
+  }
+} 

app/api/keloladata/data-mahasiswa/upload/route.ts

@@ -0,0 +1,360 @@
+import { NextRequest, NextResponse } from 'next/server';
+import supabase from '@/lib/db';
+import * as XLSX from 'xlsx';
+
+export async function POST(request: NextRequest) {
+  try {
+    // Get form data from request
+    const formData = await request.formData();
+    const file = formData.get('file') as File;
+    
+    if (!file) {
+      return NextResponse.json({ message: 'No file uploaded' }, { status: 400 });
+    }
+    
+    // Read file content as array buffer
+    const fileBuffer = await file.arrayBuffer();
+    
+    // Process file data based on file type
+    let validData = [];
+    let errors: string[] = [];
+    
+    if (file.name.endsWith('.csv') || file.type === 'text/csv') {
+      // Process as CSV
+      const fileContent = await file.text();
+      const result = await processCSVData(fileContent);
+      validData = result.validData;
+      errors = result.errors;
+    } else {
+      // Process as Excel
+      const result = await processExcelData(fileBuffer);
+      validData = result.validData;
+      errors = result.errors;
+    }
+    
+    if (validData.length === 0) {
+      return NextResponse.json({ 
+        message: 'No valid data found in the file', 
+        errors 
+      }, { status: 400 });
+    }
+    
+    // Insert valid data into the database
+    const { insertedCount, errorCount } = await insertDataToDatabase(validData);
+    
+    return NextResponse.json({ 
+      message: 'File processed successfully',
+      insertedCount,
+      errorCount,
+      errors: errors.length > 0 ? errors : undefined
+    });
+    
+  } catch (error) {
+    console.error('Error processing file upload:', error);
+    return NextResponse.json({ 
+      message: 'Error processing file upload',
+      error: (error as Error).message 
+    }, { status: 500 });
+  }
+}
+
+// Function to process Excel data
+async function processExcelData(fileBuffer: ArrayBuffer) {
+  try {
+    // Parse Excel file
+    const workbook = XLSX.read(fileBuffer, { type: 'array' });
+    
+    // Get first sheet
+    const sheetName = workbook.SheetNames[0];
+    const worksheet = workbook.Sheets[sheetName];
+    
+    // Convert to JSON with proper typing
+    const jsonData = XLSX.utils.sheet_to_json(worksheet, { header: 1 }) as any[][];
+    
+    if (jsonData.length === 0) {
+      return { validData: [], errors: ['Excel file is empty'] };
+    }
+    
+    // Convert Excel data to CSV-like format for processing
+    const headers = jsonData[0].map(h => String(h).toLowerCase());
+    const rows = jsonData.slice(1);
+    
+    // Process the data using the common function
+    return processData(headers, rows);
+  } catch (error) {
+    console.error('Error processing Excel data:', error);
+    return { validData: [], errors: [(error as Error).message] };
+  }
+}
+
+// Function to process CSV data
+async function processCSVData(fileContent: string) {
+  const lines = fileContent.split(/\r?\n/).filter(line => line.trim() !== '');
+  
+  if (lines.length === 0) {
+    return { validData: [], errors: ['CSV file is empty'] };
+  }
+  
+  // Get headers from first line
+  const headerLine = lines[0].toLowerCase();
+  const headers = headerLine.split(',').map(h => h.trim());
+  
+  // Process data rows
+  const rows = lines.slice(1).map(line => line.split(',').map(v => v.trim()));
+  
+  return processData(headers, rows);
+}
+
+// Common function to process data regardless of source format
+function processData(headers: string[], rows: any[][]) {
+  // Define expected headers and their possible variations
+  const expectedHeaderMap = {
+    nim: ['nim'],
+    nama: ['nama', 'name'],
+    jenis_kelamin: ['jenis_kelamin', 'jk', 'gender'],
+    agama: ['agama', 'religion'],
+    kabupaten: ['kabupaten', 'kota', 'city'],
+    provinsi: ['provinsi', 'province'],
+    jenis_pendaftaran: ['jenis_pendaftaran', 'jalur_masuk', 'admission_type'],
+    tahun_angkatan: ['tahun_angkatan', 'angkatan', 'tahun', 'year'],
+    ipk: ['ipk', 'gpa'],
+    kelompok_keahlian: ['kelompok_keahlian', 'kk', 'keahlian', 'id_kk'],
+    status_kuliah: ['status_kuliah', 'status', 'status_mahasiswa'],
+    semester: ['semester', 'sem']
+  };
+  
+  // Map actual headers to expected headers
+  const headerMap: { [key: string]: number } = {};
+  for (const [expectedHeader, variations] of Object.entries(expectedHeaderMap)) {
+    const index = headers.findIndex(h => variations.includes(h));
+    if (index !== -1) {
+      headerMap[expectedHeader] = index;
+    }
+  }
+  
+  // Check required headers
+  const requiredHeaders = ['nim', 'nama', 'jenis_kelamin', 'tahun_angkatan'];
+  const missingHeaders = requiredHeaders.filter(h => headerMap[h] === undefined);
+  
+  if (missingHeaders.length > 0) {
+    return { 
+      validData: [], 
+      errors: [`Missing required headers: ${missingHeaders.join(', ')}`] 
+    };
+  }
+  
+  const validData = [];
+  const errors = [];
+  
+  // Process data rows
+  for (let i = 0; i < rows.length; i++) {
+    const values = rows[i];
+    if (!values || values.length === 0) continue;
+    
+    try {
+      // Extract values using header map
+      const nim = String(values[headerMap.nim] || '');
+      const nama = String(values[headerMap.nama] || '');
+      const jenis_kelamin = mapGender(String(values[headerMap.jenis_kelamin] || ''));
+      const tahun_angkatan = String(values[headerMap.tahun_angkatan] || '');
+      
+      // Optional fields
+      const agama = headerMap.agama !== undefined ? String(values[headerMap.agama] || '') || null : null;
+      const kabupaten = headerMap.kabupaten !== undefined ? String(values[headerMap.kabupaten] || '') || null : null;
+      const provinsi = headerMap.provinsi !== undefined ? String(values[headerMap.provinsi] || '') || null : null;
+      const jenis_pendaftaran = headerMap.jenis_pendaftaran !== undefined ? String(values[headerMap.jenis_pendaftaran] || '') || null : null;
+      
+      // Handle IPK (could be number or string)
+      let ipk = null;
+      if (headerMap.ipk !== undefined && values[headerMap.ipk] !== undefined && values[headerMap.ipk] !== null) {
+        const ipkValue = values[headerMap.ipk];
+        const ipkStr = typeof ipkValue === 'number' ? ipkValue.toString() : String(ipkValue);
+        ipk = ipkStr ? parseFloat(ipkStr) : null;
+      }
+      
+      // Handle kelompok_keahlian (could be number or string)
+      let kelompok_keahlian_id = null;
+      if (headerMap.kelompok_keahlian !== undefined && values[headerMap.kelompok_keahlian] !== undefined) {
+        const kkValue = values[headerMap.kelompok_keahlian];
+        if (kkValue !== null && kkValue !== '') {
+          kelompok_keahlian_id = typeof kkValue === 'number' ? kkValue : parseInt(String(kkValue));
+        }
+      }
+      
+      // Handle status_kuliah
+      let status_kuliah = 'Aktif'; // Default value
+      if (headerMap.status_kuliah !== undefined && values[headerMap.status_kuliah] !== undefined) {
+        const statusValue = String(values[headerMap.status_kuliah] || '').trim();
+        if (statusValue) {
+          const mappedStatus = mapStatus(statusValue);
+          if (mappedStatus) {
+            status_kuliah = mappedStatus;
+          }
+        }
+      }
+      
+      // Handle semester (could be number or string)
+      let semester = 1; // Default value
+      if (headerMap.semester !== undefined && values[headerMap.semester] !== undefined) {
+        const semesterValue = values[headerMap.semester];
+        if (semesterValue !== null && semesterValue !== '') {
+          const semesterNum = typeof semesterValue === 'number' ? semesterValue : parseInt(String(semesterValue));
+          if (!isNaN(semesterNum) && semesterNum >= 1 && semesterNum <= 14) {
+            semester = semesterNum;
+          }
+        }
+      }
+      
+      // Validate required fields
+      if (!nim || !nama || !jenis_kelamin || !tahun_angkatan) {
+        errors.push(`Row ${i+1}: Missing required fields`);
+        continue;
+      }
+      
+      // Validate NIM format (should be alphanumeric and proper length)
+      if (!/^[A-Za-z0-9]{8,12}$/.test(nim)) {
+        errors.push(`Row ${i+1}: Invalid NIM format - ${nim}`);
+        continue;
+      }
+      
+      // Validate tahun_angkatan format (should be 4 digits)
+      if (!/^\d{4}$/.test(tahun_angkatan)) {
+        errors.push(`Row ${i+1}: Invalid tahun_angkatan format - ${tahun_angkatan}`);
+        continue;
+      }
+      
+      // Validate IPK if provided
+      if (ipk !== null && (isNaN(ipk) || ipk < 0 || ipk > 4)) {
+        errors.push(`Row ${i+1}: Invalid IPK value - ${ipk}`);
+        continue;
+      }
+      
+      // Validate semester if provided
+      if (semester < 1 || semester > 14) {
+        errors.push(`Row ${i+1}: Invalid semester value - ${semester} (must be between 1-14)`);
+        continue;
+      }
+      
+      // Add to valid data
+      validData.push({
+        nim,
+        nama,
+        jk: jenis_kelamin,
+        agama,
+        kabupaten,
+        provinsi,
+        jenis_pendaftaran,
+        tahun_angkatan,
+        ipk,
+        kelompok_keahlian_id,
+        status_kuliah,
+        semester
+      });
+      
+    } catch (error) {
+      errors.push(`Row ${i+1}: Error processing row - ${(error as Error).message}`);
+    }
+  }
+  
+  return { validData, errors };
+}
+
+// Function to map gender values to standardized format
+function mapGender(value: string): 'Pria' | 'Wanita' | null {
+  if (!value) return null;
+  
+  const lowerValue = value.toLowerCase();
+  
+  if (['pria', 'laki-laki', 'laki', 'l', 'male', 'm', 'p'].includes(lowerValue)) {
+    return 'Pria';
+  }
+  
+  if (['wanita', 'perempuan', 'w', 'female', 'f', 'woman', 'w'].includes(lowerValue)) {
+    return 'Wanita';
+  }
+  
+  return null;
+}
+
+// Function to map status values to standardized format
+function mapStatus(value: string): 'Aktif' | 'Cuti' | 'Lulus' | 'Non-Aktif' | null {
+  if (!value) return null;
+  
+  const lowerValue = value.toLowerCase();
+  
+  if (['aktif', 'active', 'a'].includes(lowerValue)) {
+    return 'Aktif';
+  }
+  
+  if (['cuti', 'leave', 'c'].includes(lowerValue)) {
+    return 'Cuti';
+  }
+  
+  if (['lulus', 'graduated', 'graduate', 'l'].includes(lowerValue)) {
+    return 'Lulus';
+  }
+  
+  if (['non-aktif', 'non aktif', 'nonaktif', 'non-aktif', 'non aktif', 'nonaktif', 'n'].includes(lowerValue)) {
+    return 'Non-Aktif';
+  }
+  
+  return null;
+}
+
+// Function to insert data into database
+async function insertDataToDatabase(data: any[]) {
+  let insertedCount = 0;
+  let errorCount = 0;
+  
+  for (const item of data) {
+    try {
+      // Check if mahasiswa already exists
+      const { data: existingData } = await supabase
+        .from('mahasiswa')
+        .select('nim')
+        .eq('nim', item.nim)
+        .single();
+      
+      const mahasiswaData = {
+        nama: item.nama,
+        jk: item.jk,
+        agama: item.agama,
+        kabupaten: item.kabupaten,
+        provinsi: item.provinsi,
+        jenis_pendaftaran: item.jenis_pendaftaran,
+        tahun_angkatan: item.tahun_angkatan,
+        ipk: item.ipk,
+        id_kelompok_keahlian: item.kelompok_keahlian_id,
+        status_kuliah: item.status_kuliah,
+        semester: item.semester
+      };
+      
+      if (existingData) {
+        // Update existing record
+        const { error } = await supabase
+          .from('mahasiswa')
+          .update(mahasiswaData)
+          .eq('nim', item.nim);
+          
+        if (error) throw error;
+      } else {
+        // Insert new record
+        const { error } = await supabase
+          .from('mahasiswa')
+          .insert({
+            nim: item.nim,
+            ...mahasiswaData
+          });
+          
+        if (error) throw error;
+      }
+      
+      insertedCount++;
+    } catch (error) {
+      console.error(`Error inserting/updating record for NIM ${item.nim}:`, error);
+      errorCount++;
+    }
+  }
+  
+  return { insertedCount, errorCount };
+}