Update graduation workflow, promotions, and admin module improvements

app/Http/Controllers/DepartmentController.php

@@ -6,9 +6,15 @@ use App\Models\Department;
 use App\Models\StudentAcademicHistory;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
+use Illuminate\Support\Arr;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Validator;
+use Illuminate\Support\Str;
 use Illuminate\Validation\Rule;
+use Illuminate\Validation\ValidationException;
 use Illuminate\View\View;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
 use RealRashid\SweetAlert\Facades\Alert;
 
 class DepartmentController extends Controller
@@ -27,7 +33,11 @@ class DepartmentController extends Controller
             ->paginate(10)
             ->withQueryString();
 
-        return view('departments.index', compact('departments', 'search'));
+        return view('departments.index', [
+            'departments' => $departments,
+            'search' => $search,
+            'importPreview' => $request->session()->get('department_import_preview'),
+        ]);
     }
 
     public function create(): View
@@ -81,6 +91,118 @@ class DepartmentController extends Controller
         return redirect()->route('departments.index')->with('success', 'Program keahlian berhasil diperbarui.');
     }
 
+    public function previewImport(Request $request): RedirectResponse
+    {
+        $validated = $request->validate([
+            'import_file' => ['required', 'file', 'mimes:xlsx,csv,txt'],
+        ], [
+            'import_file.mimes' => 'File import harus berformat Excel (.xlsx) atau CSV.',
+        ]);
+
+        $rows = $this->parseImportFile($validated['import_file']->getRealPath(), $validated['import_file']->getClientOriginalName());
+
+        if (count($rows) === 0) {
+            throw ValidationException::withMessages([
+                'import_file' => 'File tidak berisi data program keahlian yang bisa diproses.',
+            ]);
+        }
+
+        $preview = $this->buildImportPreview($rows);
+
+        if ($preview['summary']['valid_rows'] === 0) {
+            throw ValidationException::withMessages([
+                'import_file' => array_merge(['Tidak ada baris valid yang bisa dipreview.'], array_slice($preview['errors'], 0, 10)),
+            ]);
+        }
+
+        $request->session()->put('department_import_preview', $preview);
+
+        return redirect()->route('departments.index');
+    }
+
+    public function import(Request $request): RedirectResponse
+    {
+        $request->validate([
+            'preview_token' => ['required', 'string'],
+        ]);
+
+        $preview = $request->session()->get('department_import_preview');
+
+        if (! $preview || ($preview['token'] ?? null) !== $request->string('preview_token')->value()) {
+            throw ValidationException::withMessages([
+                'preview_token' => 'Preview import sudah tidak valid. Silakan upload ulang file import.',
+            ]);
+        }
+
+        $inserted = 0;
+        $updated = 0;
+
+        DB::transaction(function () use ($preview, &$inserted, &$updated) {
+            foreach ($preview['valid_rows'] as $row) {
+                $payload = Arr::only($row['normalized'], ['code', 'name', 'description', 'is_active']);
+                $department = Department::query()->where('code', $payload['code'])->first();
+
+                if (! $department) {
+                    $department = Department::query()->where('name', $payload['name'])->first();
+                }
+
+                if ($department) {
+                    $department->update($payload);
+                    $updated++;
+                    continue;
+                }
+
+                Department::create($payload);
+                $inserted++;
+            }
+        });
+
+        $request->session()->forget('department_import_preview');
+
+        Alert::success('Berhasil', "Import program keahlian selesai. {$inserted} data baru ditambahkan, {$updated} data diperbarui.");
+
+        return redirect()->route('departments.index')->with('success', "Import program keahlian selesai. {$inserted} data baru ditambahkan, {$updated} data diperbarui.");
+    }
+
+    public function downloadImportTemplate()
+    {
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->setTitle('Import Program Keahlian');
+
+        $headers = ['Kode', 'Nama Program Keahlian', 'Deskripsi', 'Status'];
+        $sheet->fromArray($headers, null, 'A1');
+        $sheet->fromArray(['TKJ', 'Teknik Komputer dan Jaringan', 'Jurusan jaringan dan komputer', 'Aktif'], null, 'A2');
+
+        foreach (range(1, count($headers)) as $columnIndex) {
+            $sheet->getColumnDimensionByColumn($columnIndex)->setAutoSize(true);
+        }
+
+        $guideSheet = $spreadsheet->createSheet();
+        $guideSheet->setTitle('Panduan');
+        $guideSheet->fromArray([
+            ['Kolom', 'Keterangan'],
+            ['Kode', 'Wajib, unik. Akan disimpan dalam huruf besar.'],
+            ['Nama Program Keahlian', 'Wajib diisi.'],
+            ['Deskripsi', 'Opsional.'],
+            ['Status', 'Isi Aktif/Nonaktif, Yes/No, 1/0, atau Ya/Tidak. Default aktif jika kosong.'],
+        ], null, 'A1');
+
+        foreach (range('A', 'B') as $column) {
+            $guideSheet->getColumnDimension($column)->setAutoSize(true);
+        }
+
+        $writer = new Xlsx($spreadsheet);
+        ob_start();
+        $writer->save('php://output');
+        $content = ob_get_clean();
+
+        return response($content, 200, [
+            'Content-Type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            'Content-Disposition' => 'attachment; filename="template-import-program-keahlian.xlsx"',
+        ]);
+    }
+
     public function destroy(Department $department): RedirectResponse
     {
         $department->loadCount('students');
@@ -114,4 +236,275 @@ class DepartmentController extends Controller
 
         return redirect()->route('departments.index')->with('success', $message);
     }
+
+    protected function buildImportPreview(array $rows): array
+    {
+        $previewRows = [];
+        $errors = [];
+        $validRows = [];
+
+        foreach ($rows as $rowNumber => $row) {
+            if ($this->isImportRowEmpty($row)) {
+                continue;
+            }
+
+            $normalized = $this->normalizeImportRow($row);
+            $validator = Validator::make($normalized, [
+                'code' => ['required', 'string', 'max:20'],
+                'name' => ['required', 'string', 'max:100'],
+                'description' => ['nullable', 'string'],
+                'is_active' => ['required', 'boolean'],
+            ], [], [
+                'code' => 'kode',
+                'name' => 'nama program keahlian',
+                'description' => 'deskripsi',
+                'is_active' => 'status',
+            ]);
+
+            $errorMessages = [];
+            $action = 'insert';
+
+            if ($validator->fails()) {
+                $errorMessages = $validator->errors()->all();
+                $errors[] = 'Baris ' . $rowNumber . ': ' . implode(' ', $errorMessages);
+            } else {
+                $payload = $validator->validated();
+                $lookup = Department::query()->where('code', $payload['code'])->first();
+
+                if (! $lookup) {
+                    $lookup = Department::query()->where('name', $payload['name'])->first();
+                }
+
+                if ($lookup) {
+                    $action = 'update';
+                }
+
+                $validRows[] = [
+                    'row_number' => $rowNumber,
+                    'normalized' => $payload,
+                    'action' => $action,
+                ];
+            }
+
+            $previewRows[] = [
+                'row_number' => $rowNumber,
+                'data' => $normalized,
+                'errors' => $errorMessages,
+                'is_valid' => empty($errorMessages),
+                'action' => $action,
+            ];
+        }
+
+        return [
+            'token' => Str::uuid()->toString(),
+            'rows' => $previewRows,
+            'valid_rows' => $validRows,
+            'errors' => $errors,
+            'summary' => [
+                'total_rows' => count($previewRows),
+                'valid_rows' => count($validRows),
+                'invalid_rows' => count(array_filter($previewRows, fn ($row) => ! $row['is_valid'])),
+                'insert_rows' => count(array_filter($previewRows, fn ($row) => $row['is_valid'] && $row['action'] === 'insert')),
+                'update_rows' => count(array_filter($previewRows, fn ($row) => $row['is_valid'] && $row['action'] === 'update')),
+            ],
+        ];
+    }
+
+    protected function normalizeImportRow(array $row): array
+    {
+        $normalized = [];
+
+        foreach ($row as $key => $value) {
+            $normalizedKey = Str::of((string) $key)
+                ->trim()
+                ->lower()
+                ->replaceMatches('/[^a-z0-9]+/u', '_')
+                ->trim('_')
+                ->value();
+
+            $normalized[$normalizedKey] = is_string($value) ? trim($value) : $value;
+        }
+
+        return [
+            'code' => strtoupper((string) ($this->nullIfBlank($normalized['code'] ?? ($normalized['kode'] ?? null)) ?? '')),
+            'name' => $this->nullIfBlank($normalized['name'] ?? ($normalized['nama_program_keahlian'] ?? null)),
+            'description' => $this->nullIfBlank($normalized['description'] ?? ($normalized['deskripsi'] ?? null)),
+            'is_active' => $this->normalizeImportBoolean($normalized['is_active'] ?? ($normalized['status'] ?? null)),
+        ];
+    }
+
+    protected function parseImportFile(string $path, string $originalName): array
+    {
+        $extension = strtolower(pathinfo($originalName, PATHINFO_EXTENSION));
+
+        return match ($extension) {
+            'xlsx' => $this->parseXlsxRows($path),
+            default => $this->parseCsvRows($path),
+        };
+    }
+
+    protected function parseCsvRows(string $path): array
+    {
+        $handle = fopen($path, 'r');
+
+        if (! $handle) {
+            return [];
+        }
+
+        $rows = [];
+        $headers = null;
+        $rowNumber = 1;
+
+        while (($data = fgetcsv($handle, 0, ',')) !== false) {
+            $rowNumber++;
+
+            if ($headers === null) {
+                $headers = array_map(fn ($header) => trim((string) $header), $data);
+                continue;
+            }
+
+            if (count(array_filter($data, fn ($value) => trim((string) $value) !== '')) === 0) {
+                continue;
+            }
+
+            $rows[$rowNumber] = array_combine($headers, array_pad($data, count($headers), null));
+        }
+
+        fclose($handle);
+
+        return $rows;
+    }
+
+    protected function parseXlsxRows(string $path): array
+    {
+        $zip = new \ZipArchive();
+
+        if ($zip->open($path) !== true) {
+            throw ValidationException::withMessages([
+                'import_file' => 'File Excel tidak bisa dibuka.',
+            ]);
+        }
+
+        $sharedStrings = [];
+        $sharedStringsXml = $zip->getFromName('xl/sharedStrings.xml');
+        if ($sharedStringsXml) {
+            $xml = simplexml_load_string($sharedStringsXml);
+            if ($xml && isset($xml->si)) {
+                foreach ($xml->si as $item) {
+                    $text = '';
+                    if (isset($item->t)) {
+                        $text = (string) $item->t;
+                    } elseif (isset($item->r)) {
+                        foreach ($item->r as $run) {
+                            $text .= (string) $run->t;
+                        }
+                    }
+                    $sharedStrings[] = $text;
+                }
+            }
+        }
+
+        $sheetXml = $zip->getFromName('xl/worksheets/sheet1.xml');
+        $zip->close();
+
+        if (! $sheetXml) {
+            throw ValidationException::withMessages([
+                'import_file' => 'Worksheet pertama pada file Excel tidak ditemukan.',
+            ]);
+        }
+
+        $xml = simplexml_load_string($sheetXml);
+        $xml->registerXPathNamespace('main', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+        $rows = [];
+        $headers = null;
+
+        foreach ($xml->xpath('//main:sheetData/main:row') as $rowIndex => $row) {
+            $values = [];
+
+            foreach ($row->c as $cell) {
+                $reference = (string) $cell['r'];
+                $column = preg_replace('/\d+/', '', $reference);
+                $index = $this->columnLetterToIndex($column);
+                $type = (string) $cell['t'];
+                $value = '';
+
+                if ($type === 'inlineStr' && isset($cell->is->t)) {
+                    $value = (string) $cell->is->t;
+                } elseif ($type === 's') {
+                    $sharedIndex = (int) ($cell->v ?? 0);
+                    $value = $sharedStrings[$sharedIndex] ?? '';
+                } else {
+                    $value = (string) ($cell->v ?? '');
+                }
+
+                $values[$index] = $value;
+            }
+
+            if (empty($values)) {
+                continue;
+            }
+
+            ksort($values);
+            $maxIndex = max(array_keys($values));
+            $ordered = [];
+
+            for ($index = 0; $index <= $maxIndex; $index++) {
+                $ordered[$index] = $values[$index] ?? null;
+            }
+
+            if ($headers === null) {
+                $headers = array_map(fn ($header) => trim((string) $header), $ordered);
+                continue;
+            }
+
+            $rows[$rowIndex + 1] = array_combine($headers, array_pad($ordered, count($headers), null));
+        }
+
+        return $rows;
+    }
+
+    protected function columnLetterToIndex(string $letters): int
+    {
+        $letters = strtoupper($letters);
+        $index = 0;
+
+        for ($i = 0; $i < strlen($letters); $i++) {
+            $index = ($index * 26) + (ord($letters[$i]) - 64);
+        }
+
+        return $index - 1;
+    }
+
+    protected function isImportRowEmpty(array $row): bool
+    {
+        return count(array_filter($row, fn ($value) => ! is_null($value) && $value !== '')) === 0;
+    }
+
+    protected function nullIfBlank(mixed $value): mixed
+    {
+        if (is_string($value) && trim($value) === '') {
+            return null;
+        }
+
+        return $value;
+    }
+
+    protected function normalizeImportBoolean(mixed $value): bool
+    {
+        if ($value === null || $value === '') {
+            return true;
+        }
+
+        if (is_bool($value)) {
+            return $value;
+        }
+
+        $normalized = strtolower(trim((string) $value));
+
+        return match ($normalized) {
+            '1', 'true', 'ya', 'y', 'yes', 'aktif' => true,
+            '0', 'false', 'tidak', 't', 'no', 'nonaktif', 'inactive' => false,
+            default => true,
+        };
+    }
 }

app/Http/Controllers/GraduatedStudentController.php

@@ -110,7 +110,25 @@ class GraduatedStudentController extends Controller
             ],
             'academicYears' => AcademicYear::orderBy('name')->pluck('name', 'id'),
             'departments' => Department::orderBy('name')->pluck('name', 'id'),
-            'classes' => SchoolClass::orderBy('name')->pluck('name', 'id'),
+            'classes' => SchoolClass::query()
+                ->when($academicYearId, function ($query) use ($academicYearId, $classId) {
+                    $query->where('academic_year_id', $academicYearId)
+                        ->where(function ($innerQuery) use ($classId) {
+                            $innerQuery->where('level', 'XII');
+
+                            if ($classId) {
+                                $innerQuery->orWhere('id', $classId);
+                            }
+                        });
+                }, function ($query) use ($classId) {
+                    if ($classId) {
+                        $query->whereKey($classId);
+                    } else {
+                        $query->whereRaw('1 = 0');
+                    }
+                })
+                ->orderBy('name')
+                ->pluck('name', 'id'),
             'documentStatusOptions' => [
                 'all' => 'Semua Dokumen',
                 'complete' => 'Dokumen Lengkap',

app/Http/Controllers/GraduationBulkUploadController.php

@@ -3,6 +3,7 @@
 namespace App\Http\Controllers;
 
 use App\Models\StudentGraduation;
+use Illuminate\Http\JsonResponse;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
@@ -32,6 +33,27 @@ class GraduationBulkUploadController extends Controller
     }
 
     public function preview(Request $request): RedirectResponse
+    {
+        $preview = $this->buildPreviewPayload($request);
+
+        return $preview;
+    }
+
+    public function previewAjax(Request $request): JsonResponse
+    {
+        $preview = $this->buildPreviewPayload($request);
+
+        $request->session()->put('graduation_bulk_upload_preview', $preview);
+
+        return response()->json([
+            'success' => true,
+            'redirect_url' => route('graduated-students.bulk-upload.index'),
+            'summary' => $preview['summary'],
+            'message' => 'Preview bulk upload berhasil disiapkan.',
+        ]);
+    }
+
+    protected function buildPreviewPayload(Request $request): array
     {
         $validated = $request->validate([
             'document_type' => ['required', 'in:skl,ijazah,transcript,ukk-certificate,lsp-certificate'],
@@ -115,9 +137,7 @@ class GraduationBulkUploadController extends Controller
             'summary' => $summary,
         ];
 
-        $request->session()->put('graduation_bulk_upload_preview', $preview);
+        return $preview;
-
-        return redirect()->route('graduated-students.bulk-upload.index');
     }
 
     public function store(Request $request): RedirectResponse

app/Http/Controllers/SchoolClassController.php

@@ -7,9 +7,15 @@ use App\Models\Department;
 use App\Models\SchoolClass;
 use Illuminate\Http\RedirectResponse;
 use Illuminate\Http\Request;
+use Illuminate\Support\Arr;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Validator;
+use Illuminate\Support\Str;
 use Illuminate\Validation\Rule;
+use Illuminate\Validation\ValidationException;
 use Illuminate\View\View;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
 use RealRashid\SweetAlert\Facades\Alert;
 
 class SchoolClassController extends Controller
@@ -33,6 +39,8 @@ class SchoolClassController extends Controller
             'classes' => $classes,
             'search' => $search,
             'academicYears' => AcademicYear::orderByDesc('start_year')->orderByDesc('end_year')->get(),
+            'importPreview' => $request->session()->get('class_import_preview'),
+            'importReferenceData' => $this->importReferenceData(),
         ]);
     }
 
@@ -131,6 +139,146 @@ class SchoolClassController extends Controller
         return redirect()->route('classes.index')->with('success', "Generate kelas selesai. {$created} kelas dibuat, {$skipped} dilewati.");
     }
 
+    public function previewImport(Request $request): RedirectResponse
+    {
+        $validated = $request->validate([
+            'import_file' => ['required', 'file', 'mimes:xlsx,csv,txt'],
+        ], [
+            'import_file.mimes' => 'File import harus berformat Excel (.xlsx) atau CSV.',
+        ]);
+
+        $rows = $this->parseImportFile($validated['import_file']->getRealPath(), $validated['import_file']->getClientOriginalName());
+
+        if (count($rows) === 0) {
+            throw ValidationException::withMessages([
+                'import_file' => 'File tidak berisi data kelas yang bisa diproses.',
+            ]);
+        }
+
+        $preview = $this->buildImportPreview($rows);
+
+        if ($preview['summary']['valid_rows'] === 0) {
+            throw ValidationException::withMessages([
+                'import_file' => array_merge(['Tidak ada baris valid yang bisa dipreview.'], array_slice($preview['errors'], 0, 10)),
+            ]);
+        }
+
+        $request->session()->put('class_import_preview', $preview);
+
+        return redirect()->route('classes.index');
+    }
+
+    public function import(Request $request): RedirectResponse
+    {
+        $request->validate([
+            'preview_token' => ['required', 'string'],
+        ]);
+
+        $preview = $request->session()->get('class_import_preview');
+
+        if (! $preview || ($preview['token'] ?? null) !== $request->string('preview_token')->value()) {
+            throw ValidationException::withMessages([
+                'preview_token' => 'Preview import sudah tidak valid. Silakan upload ulang file import.',
+            ]);
+        }
+
+        $inserted = 0;
+        $updated = 0;
+
+        DB::transaction(function () use ($preview, &$inserted, &$updated) {
+            foreach ($preview['valid_rows'] as $row) {
+                $payload = Arr::only($row['normalized'], [
+                    'academic_year_id',
+                    'department_id',
+                    'name',
+                    'level',
+                    'homeroom_teacher',
+                    'capacity',
+                    'is_active',
+                ]);
+
+                $class = SchoolClass::query()
+                    ->where('academic_year_id', $payload['academic_year_id'])
+                    ->where('name', $payload['name'])
+                    ->first();
+
+                if ($class) {
+                    $class->update($payload);
+                    $updated++;
+                    continue;
+                }
+
+                SchoolClass::create($payload);
+                $inserted++;
+            }
+        });
+
+        $request->session()->forget('class_import_preview');
+
+        Alert::success('Berhasil', "Import kelas selesai. {$inserted} data baru ditambahkan, {$updated} data diperbarui.");
+
+        return redirect()->route('classes.index')->with('success', "Import kelas selesai. {$inserted} data baru ditambahkan, {$updated} data diperbarui.");
+    }
+
+    public function downloadImportTemplate()
+    {
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->setTitle('Import Kelas');
+
+        $headers = ['Tahun Ajaran', 'Program Keahlian', 'Nama Kelas', 'Tingkat', 'Wali Kelas', 'Kapasitas', 'Status'];
+        $sheet->fromArray($headers, null, 'A1');
+        $sheet->fromArray([
+            AcademicYear::where('is_active', true)->orderBy('name')->value('name') ?? '2025/2026',
+            Department::where('is_active', true)->orderBy('name')->value('name') ?? 'TKJ',
+            'X TKJ 1',
+            'X',
+            'Budi Santoso',
+            '36',
+            'Aktif',
+        ], null, 'A2');
+
+        for ($columnIndex = 1; $columnIndex <= count($headers); $columnIndex++) {
+            $sheet->getColumnDimensionByColumn($columnIndex)->setAutoSize(true);
+        }
+
+        $referenceSheet = $spreadsheet->createSheet();
+        $referenceSheet->setTitle('Referensi');
+        $referenceSheet->fromArray(['Tahun Ajaran'], null, 'A1');
+        $referenceSheet->fromArray(AcademicYear::orderBy('name')->pluck('name')->all(), null, 'A2');
+        $referenceSheet->fromArray(['Program Keahlian'], null, 'C1');
+        $referenceSheet->fromArray(Department::orderBy('name')->pluck('name')->all(), null, 'C2');
+        $referenceSheet->fromArray(['Status'], null, 'E1');
+        $referenceSheet->fromArray([['Aktif'], ['Nonaktif']], null, 'E2');
+
+        $guideSheet = $spreadsheet->createSheet();
+        $guideSheet->setTitle('Panduan');
+        $guideSheet->fromArray([
+            ['Kolom', 'Keterangan'],
+            ['Tahun Ajaran', 'Wajib. Isi nama tahun ajaran persis seperti sheet Referensi.'],
+            ['Program Keahlian', 'Wajib. Bisa isi nama jurusan atau kode jurusan.'],
+            ['Nama Kelas', 'Wajib. Unik per tahun ajaran.'],
+            ['Tingkat', 'Wajib. Contoh: X, XI, XII.'],
+            ['Wali Kelas', 'Opsional.'],
+            ['Kapasitas', 'Opsional. Angka bulat minimal 1.'],
+            ['Status', 'Isi Aktif/Nonaktif, Yes/No, 1/0, atau Ya/Tidak. Default aktif jika kosong.'],
+        ], null, 'A1');
+
+        foreach (range('A', 'B') as $column) {
+            $guideSheet->getColumnDimension($column)->setAutoSize(true);
+        }
+
+        $writer = new Xlsx($spreadsheet);
+        ob_start();
+        $writer->save('php://output');
+        $content = ob_get_clean();
+
+        return response($content, 200, [
+            'Content-Type' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            'Content-Disposition' => 'attachment; filename="template-import-kelas.xlsx"',
+        ]);
+    }
+
     public function show(SchoolClass $class): RedirectResponse
     {
         return redirect()->route('classes.edit', $class);
@@ -159,7 +307,7 @@ class SchoolClassController extends Controller
         return view('classes.edit', [
             'class' => $class,
             'academicYears' => $academicYears,
-            'departments' => $departments,
+            'departments' => $departments
         ]);
     }
 
@@ -244,6 +392,359 @@ class SchoolClassController extends Controller
         return redirect()->route('classes.index')->with('success', $deletedCount . ' kelas berhasil dihapus.');
     }
 
+    protected function importReferenceData(): array
+    {
+        return [
+            'academicYears' => AcademicYear::orderBy('name')->pluck('name', 'id'),
+            'departments' => Department::orderBy('name')->pluck('name', 'id'),
+        ];
+    }
+
+    protected function buildImportPreview(array $rows): array
+    {
+        $previewRows = [];
+        $errors = [];
+        $validRows = [];
+
+        foreach ($rows as $rowNumber => $row) {
+            if ($this->isImportRowEmpty($row)) {
+                continue;
+            }
+
+            $normalized = $this->normalizeImportRow($row);
+            $validator = Validator::make($normalized, [
+                'academic_year_id' => ['required', Rule::exists('academic_years', 'id')],
+                'department_id' => ['required', Rule::exists('departments', 'id')],
+                'name' => ['required', 'string', 'max:100'],
+                'level' => ['required', 'string', 'max:10'],
+                'homeroom_teacher' => ['nullable', 'string', 'max:100'],
+                'capacity' => ['nullable', 'integer', 'min:1'],
+                'is_active' => ['required', 'boolean'],
+            ], [], [
+                'academic_year_id' => 'tahun ajaran',
+                'department_id' => 'program keahlian',
+                'name' => 'nama kelas',
+                'level' => 'tingkat',
+                'homeroom_teacher' => 'wali kelas',
+                'capacity' => 'kapasitas',
+                'is_active' => 'status',
+            ]);
+
+            $errorMessages = [];
+            $action = 'insert';
+
+            if ($validator->fails()) {
+                $errorMessages = $validator->errors()->all();
+                $errors[] = 'Baris ' . $rowNumber . ': ' . implode(' ', $errorMessages);
+            } else {
+                $payload = $validator->validated();
+                $lookup = SchoolClass::query()
+                    ->where('academic_year_id', $payload['academic_year_id'])
+                    ->where('name', $payload['name'])
+                    ->first();
+
+                if ($lookup) {
+                    $action = 'update';
+                }
+
+                $validRows[] = [
+                    'row_number' => $rowNumber,
+                    'normalized' => $payload,
+                    'action' => $action,
+                ];
+            }
+
+            $previewRows[] = [
+                'row_number' => $rowNumber,
+                'data' => $normalized,
+                'errors' => $errorMessages,
+                'is_valid' => empty($errorMessages),
+                'action' => $action,
+            ];
+        }
+
+        return [
+            'token' => Str::uuid()->toString(),
+            'rows' => $previewRows,
+            'valid_rows' => $validRows,
+            'errors' => $errors,
+            'summary' => [
+                'total_rows' => count($previewRows),
+                'valid_rows' => count($validRows),
+                'invalid_rows' => count(array_filter($previewRows, fn ($row) => ! $row['is_valid'])),
+                'insert_rows' => count(array_filter($previewRows, fn ($row) => $row['is_valid'] && $row['action'] === 'insert')),
+                'update_rows' => count(array_filter($previewRows, fn ($row) => $row['is_valid'] && $row['action'] === 'update')),
+            ],
+        ];
+    }
+
+    protected function normalizeImportRow(array $row): array
+    {
+        $normalized = [];
+
+        foreach ($row as $key => $value) {
+            $normalizedKey = Str::of((string) $key)
+                ->trim()
+                ->lower()
+                ->replaceMatches('/[^a-z0-9]+/u', '_')
+                ->trim('_')
+                ->value();
+
+            $normalized[$normalizedKey] = is_string($value) ? trim($value) : $value;
+        }
+
+        $academicYearId = $this->resolveAcademicYearId($normalized['academic_year_id'] ?? ($normalized['tahun_ajaran'] ?? null));
+        $departmentId = $this->resolveDepartmentId($normalized['department_id'] ?? ($normalized['program_keahlian'] ?? null));
+
+        return [
+            'academic_year_id' => $academicYearId,
+            'department_id' => $departmentId,
+            'name' => $this->nullIfBlank($normalized['name'] ?? ($normalized['nama_kelas'] ?? null)),
+            'level' => strtoupper((string) ($this->nullIfBlank($normalized['level'] ?? ($normalized['tingkat'] ?? null)) ?? '')),
+            'homeroom_teacher' => $this->nullIfBlank($normalized['homeroom_teacher'] ?? ($normalized['wali_kelas'] ?? null)),
+            'capacity' => $this->normalizeImportInteger($normalized['capacity'] ?? ($normalized['kapasitas'] ?? null)),
+            'is_active' => $this->normalizeImportBoolean($normalized['is_active'] ?? ($normalized['status'] ?? null)),
+        ];
+    }
+
+    protected function resolveAcademicYearId(mixed $value): mixed
+    {
+        if ($value === null || $value === '') {
+            return null;
+        }
+
+        if (is_numeric($value)) {
+            return $value;
+        }
+
+        return AcademicYear::where('name', trim((string) $value))->value('id');
+    }
+
+    protected function resolveDepartmentId(mixed $value): mixed
+    {
+        if ($value === null || $value === '') {
+            return null;
+        }
+
+        if (is_numeric($value)) {
+            return $value;
+        }
+
+        $normalizedValue = trim((string) $value);
+
+        return Department::query()
+            ->where('name', $normalizedValue)
+            ->orWhere('code', strtoupper($normalizedValue))
+            ->value('id');
+    }
+
+    protected function parseImportFile(string $path, string $originalName): array
+    {
+        $extension = strtolower(pathinfo($originalName, PATHINFO_EXTENSION));
+
+        return match ($extension) {
+            'xlsx' => $this->parseXlsxRows($path),
+            default => $this->parseCsvRows($path),
+        };
+    }
+
+    protected function parseCsvRows(string $path): array
+    {
+        $handle = fopen($path, 'r');
+
+        if (! $handle) {
+            return [];
+        }
+
+        $rows = [];
+        $headers = null;
+        $rowNumber = 1;
+
+        while (($data = fgetcsv($handle, 0, ',')) !== false) {
+            $rowNumber++;
+
+            if ($headers === null) {
+                $headers = array_map(fn ($header) => trim((string) $header), $data);
+                continue;
+            }
+
+            if (count(array_filter($data, fn ($value) => trim((string) $value) !== '')) === 0) {
+                continue;
+            }
+
+            $rows[$rowNumber] = array_combine($headers, array_pad($data, count($headers), null));
+        }
+
+        fclose($handle);
+
+        return $rows;
+    }
+
+    protected function parseXlsxRows(string $path): array
+    {
+        $zip = new \ZipArchive();
+
+        if ($zip->open($path) !== true) {
+            throw ValidationException::withMessages([
+                'import_file' => 'File Excel tidak bisa dibuka.',
+            ]);
+        }
+
+        $sharedStrings = [];
+        $sharedStringsXml = $zip->getFromName('xl/sharedStrings.xml');
+        if ($sharedStringsXml) {
+            $xml = simplexml_load_string($sharedStringsXml);
+            if ($xml && isset($xml->si)) {
+                foreach ($xml->si as $item) {
+                    $text = '';
+                    if (isset($item->t)) {
+                        $text = (string) $item->t;
+                    } elseif (isset($item->r)) {
+                        foreach ($item->r as $run) {
+                            $text .= (string) $run->t;
+                        }
+                    }
+                    $sharedStrings[] = $text;
+                }
+            }
+        }
+
+        $sheetXml = $zip->getFromName('xl/worksheets/sheet1.xml');
+        $zip->close();
+
+        if (! $sheetXml) {
+            throw ValidationException::withMessages([
+                'import_file' => 'Worksheet pertama pada file Excel tidak ditemukan.',
+            ]);
+        }
+
+        $xml = simplexml_load_string($sheetXml);
+        $xml->registerXPathNamespace('main', 'http://schemas.openxmlformats.org/spreadsheetml/2006/main');
+        $rows = [];
+        $headers = null;
+
+        foreach ($xml->xpath('//main:sheetData/main:row') as $rowIndex => $row) {
+            $values = [];
+
+            foreach ($row->c as $cell) {
+                $reference = (string) $cell['r'];
+                $column = preg_replace('/\d+/', '', $reference);
+                $index = $this->columnLetterToIndex($column);
+                $type = (string) $cell['t'];
+                $value = '';
+
+                if ($type === 'inlineStr' && isset($cell->is->t)) {
+                    $value = (string) $cell->is->t;
+                } elseif ($type === 's') {
+                    $sharedIndex = (int) ($cell->v ?? 0);
+                    $value = $sharedStrings[$sharedIndex] ?? '';
+                } else {
+                    $value = (string) ($cell->v ?? '');
+                }
+
+                $values[$index] = $value;
+            }
+
+            if (empty($values)) {
+                continue;
+            }
+
+            ksort($values);
+            $maxIndex = max(array_keys($values));
+            $ordered = [];
+
+            for ($index = 0; $index <= $maxIndex; $index++) {
+                $ordered[$index] = $values[$index] ?? null;
+            }
+
+            if ($headers === null) {
+                $headers = array_map(fn ($header) => trim((string) $header), $ordered);
+                continue;
+            }
+
+            $rows[$rowIndex + 1] = array_combine($headers, array_pad($ordered, count($headers), null));
+        }
+
+        return $rows;
+    }
+
+    protected function columnLetterToIndex(string $letters): int
+    {
+        $letters = strtoupper($letters);
+        $index = 0;
+
+        for ($i = 0; $i < strlen($letters); $i++) {
+            $index = ($index * 26) + (ord($letters[$i]) - 64);
+        }
+
+        return $index - 1;
+    }
+
+    protected function isImportRowEmpty(array $row): bool
+    {
+        return count(array_filter($row, fn ($value) => ! is_null($value) && $value !== '')) === 0;
+    }
+
+    protected function nullIfBlank(mixed $value): mixed
+    {
+        if (is_string($value) && trim($value) === '') {
+            return null;
+        }
+
+        return $value;
+    }
+
+    protected function normalizeImportInteger(mixed $value): mixed
+    {
+        $value = $this->nullIfBlank($value);
+
+        if ($value === null) {
+            return null;
+        }
+
+        if (is_int($value)) {
+            return $value;
+        }
+
+        if (is_float($value)) {
+            return (int) round($value);
+        }
+
+        if (is_numeric($value)) {
+            return (int) round((float) $value);
+        }
+
+        if (is_string($value)) {
+            $normalized = trim($value);
+            $normalized = str_replace([',', ' '], '', $normalized);
+
+            if (preg_match('/^\d+(?:\.0+)?$/', $normalized) === 1) {
+                return (int) round((float) $normalized);
+            }
+        }
+
+        return $value;
+    }
+
+    protected function normalizeImportBoolean(mixed $value): bool
+    {
+        if ($value === null || $value === '') {
+            return true;
+        }
+
+        if (is_bool($value)) {
+            return $value;
+        }
+
+        $normalized = strtolower(trim((string) $value));
+
+        return match ($normalized) {
+            '1', 'true', 'ya', 'y', 'yes', 'aktif' => true,
+            '0', 'false', 'tidak', 't', 'no', 'nonaktif', 'inactive' => false,
+            default => true,
+        };
+    }
+
     protected function nextLevel(?string $level): ?string
     {
         return match (strtoupper((string) $level)) {

app/Http/Controllers/StudentPromotionController.php

@@ -392,14 +392,42 @@ class StudentPromotionController extends Controller
     protected function pickRecommendedClass($classes, Student $student): ?SchoolClass
     {
         $sameDepartmentClasses = $classes->where('department_id', $student->department_id)->values();
+        $currentClassName = (string) $student->classRoom?->name;
+        $currentNormalized = $this->normalizeClassNameForComparison($currentClassName);
+        $currentParallel = $this->extractClassParallel($currentClassName);
 
-        return $sameDepartmentClasses->first(function (SchoolClass $classRoom) use ($student) {
+        return $sameDepartmentClasses->first(function (SchoolClass $classRoom) use ($currentParallel) {
+            return $currentParallel !== null
+                && $this->extractClassParallel((string) $classRoom->name) === $currentParallel;
+        })
+            ?? $sameDepartmentClasses->first(function (SchoolClass $classRoom) use ($currentNormalized) {
+                return $currentNormalized !== ''
+                    && $this->normalizeClassNameForComparison((string) $classRoom->name) === $currentNormalized;
+            })
+            ?? $sameDepartmentClasses->first(function (SchoolClass $classRoom) use ($student) {
                 return str_contains(strtolower($classRoom->name), strtolower((string) $student->classRoom?->name));
             })
             ?? $sameDepartmentClasses->first()
             ?? $classes->first();
     }
 
+    protected function normalizeClassNameForComparison(string $className): string
+    {
+        $normalized = strtoupper(trim($className));
+        $normalized = preg_replace('/^XII?I?\s+/i', '', $normalized) ?? $normalized;
+
+        return preg_replace('/\s+/', ' ', trim($normalized)) ?? trim($normalized);
+    }
+
+    protected function extractClassParallel(string $className): ?string
+    {
+        if (! preg_match('/(\d+)\s*$/', trim($className), $matches)) {
+            return null;
+        }
+
+        return ltrim($matches[1], '0') ?: '0';
+    }
+
     protected function transformClassOptions(Collection $classes): Collection
     {
         return $classes->map(function (SchoolClass $classRoom) {

app/Http/Controllers/UserManagementController.php

@@ -30,6 +30,11 @@ class UserManagementController extends Controller
             'users' => $users,
             'search' => $search,
             'roleOptions' => $this->roleOptions(),
+            'stats' => [
+                'total' => User::count(),
+                'admins' => User::where('role', 'admin')->count(),
+                'staff' => User::where('role', 'staff')->count(),
+            ],
         ]);
     }
 
@@ -77,10 +82,14 @@ class UserManagementController extends Controller
     public function destroy(Request $request, User $user): RedirectResponse
     {
         if ((int) $request->user()->id === (int) $user->id) {
+            Alert::error('Tidak bisa dihapus', 'Akun yang sedang dipakai login tidak bisa dihapus.');
+
             return back()->withErrors(['user' => 'Akun yang sedang dipakai login tidak bisa dihapus.']);
         }
 
         if (User::query()->where('role', 'admin')->count() <= 1 && $user->role === 'admin') {
+            Alert::error('Tidak bisa dihapus', 'Minimal harus ada satu akun admin aktif di sistem.');
+
             return back()->withErrors(['user' => 'Minimal harus ada satu akun admin aktif di sistem.']);
         }
 

database/migrations/2026_05_02_122100_drop_promotion_target_class_id_from_classes_table.php

@@ -0,0 +1,31 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        if (! Schema::hasColumn('classes', 'promotion_target_class_id')) {
+            return;
+        }
+
+        Schema::table('classes', function (Blueprint $table) {
+            $table->dropConstrainedForeignId('promotion_target_class_id');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('classes', function (Blueprint $table) {
+            $table->foreignId('promotion_target_class_id')
+                ->nullable()
+                ->after('level')
+                ->constrained('classes')
+                ->nullOnDelete()
+                ->cascadeOnUpdate();
+        });
+    }
+};

resources/js/app.js

@@ -445,6 +445,243 @@ document.addEventListener('DOMContentLoaded', () => {
         renderBulkUploadFiles();
     }
 
+    const bulkUploadOverlay = document.querySelector('[data-bulk-upload-overlay]');
+
+    document.querySelectorAll('[data-bulk-upload-form]').forEach((form) => {
+        const submitButton = form.querySelector('[data-bulk-upload-submit-button]');
+        const submitLabel = form.querySelector('[data-bulk-upload-submit-label]');
+        const submitIcon = form.querySelector('[data-bulk-upload-submit-icon]');
+        const mode = form.dataset.bulkUploadMode || 'preview';
+        const useAjaxPreview = form.dataset.bulkUploadAjaxPreview === 'true';
+        const previewUrl = form.dataset.bulkUploadPreviewUrl || form.getAttribute('action') || '';
+
+        const showOverlay = (config = {}) => {
+            if (!bulkUploadOverlay) {
+                return;
+            }
+
+            const title = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-title]');
+            const message = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-message]');
+            const fileCountLabel = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-file-count]');
+            const stageUpload = bulkUploadOverlay.querySelector('[data-bulk-upload-stage-upload]');
+            const stageMatch = bulkUploadOverlay.querySelector('[data-bulk-upload-stage-match]');
+            const stageSave = bulkUploadOverlay.querySelector('[data-bulk-upload-stage-save]');
+            const progressLabel = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-progress-label]');
+            const progressPercent = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-progress-percent]');
+            const progressBar = bulkUploadOverlay.querySelector('[data-bulk-upload-overlay-progress-bar]');
+            const fileCountSource = form.dataset.bulkUploadFileCountSource || 'input';
+            const inputFileCount = bulkUploadInput?.files?.length || 0;
+            const previewFileCount = Number(form.dataset.bulkUploadPreviewCount || 0);
+            const activeFileCount = fileCountSource === 'preview' ? previewFileCount : inputFileCount;
+            const percent = Math.max(0, Math.min(100, Number(config.percent ?? 0)));
+
+            if (title) {
+                title.textContent = config.title || (mode === 'process'
+                    ? 'Sedang memproses upload permanen...'
+                    : 'Sedang menyiapkan preview dokumen...');
+            }
+
+            if (message) {
+                message.textContent = config.message || (mode === 'process'
+                    ? 'Mohon tunggu. Sistem sedang menyimpan dokumen ke arsip kelulusan dan mencocokkannya ke data siswa. Jangan tutup tab ini agar proses tidak terputus.'
+                    : 'Mohon tunggu. File sedang diunggah dan dipetakan oleh sistem untuk menyiapkan preview. Jangan tutup tab ini agar proses tidak terputus.');
+            }
+
+            if (fileCountLabel) {
+                fileCountLabel.textContent = activeFileCount > 0
+                    ? `${activeFileCount} file sedang diproses`
+                    : 'Sedang menghitung jumlah file...';
+            }
+
+            if (stageUpload) {
+                stageUpload.textContent = config.stageUpload || (mode === 'process' ? 'Validasi file upload' : 'Upload file');
+                stageUpload.parentElement?.classList.add('ring-1', 'ring-indigo-300/50', 'bg-indigo-500/10');
+            }
+
+            if (stageMatch) {
+                stageMatch.textContent = config.stageMatch || (mode === 'process' ? 'Cocokkan ke siswa lulus' : 'Susun preview & matching');
+                stageMatch.parentElement?.classList.add('ring-1', 'ring-sky-300/40', 'bg-sky-500/10');
+            }
+
+            if (stageSave) {
+                stageSave.textContent = config.stageSave || (mode === 'process' ? 'Simpan ke arsip kelulusan' : 'Tunggu konfirmasi operator');
+                stageSave.parentElement?.classList.add('ring-1', 'ring-emerald-300/40', 'bg-emerald-500/10');
+            }
+
+            if (progressLabel) {
+                progressLabel.textContent = config.progressLabel || 'Menunggu proses dimulai...';
+            }
+
+            if (progressPercent) {
+                progressPercent.textContent = `${Math.round(percent)}%`;
+            }
+
+            if (progressBar) {
+                progressBar.style.width = `${percent}%`;
+                progressBar.classList.toggle('animate-pulse', !!config.indeterminate);
+            }
+
+            bulkUploadOverlay.classList.remove('hidden');
+            bulkUploadOverlay.classList.add('flex');
+            document.body.classList.add('overflow-hidden');
+        };
+
+        form.addEventListener('submit', async (event) => {
+            if (submitButton) {
+                submitButton.disabled = true;
+            }
+
+            if (submitIcon) {
+                submitIcon.classList.remove('fa-magnifying-glass', 'fa-upload', 'fa-cloud-arrow-up');
+                submitIcon.classList.add('fa-spinner', 'fa-spin');
+            }
+
+            if (submitLabel) {
+                submitLabel.textContent = mode === 'process'
+                    ? 'Sedang memproses upload...'
+                    : 'Sedang menyiapkan preview...';
+            }
+
+            if (mode === 'preview' && useAjaxPreview) {
+                event.preventDefault();
+
+                const formData = new FormData(form);
+                const csrfToken = document.querySelector('meta[name="csrf-token"]')?.getAttribute('content') || '';
+
+                showOverlay({
+                    title: 'Sedang mengunggah file preview...',
+                    message: 'Mohon tunggu. Browser sedang mengirim file ke server untuk disiapkan preview dan pencocokan data.',
+                    progressLabel: 'Mengunggah file ke server...',
+                    percent: 0,
+                    stageUpload: 'Upload file',
+                    stageMatch: 'Menunggu upload selesai',
+                    stageSave: 'Siapkan halaman preview',
+                    indeterminate: false,
+                });
+
+                const xhr = new XMLHttpRequest();
+                xhr.open('POST', previewUrl, true);
+                xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
+                xhr.setRequestHeader('Accept', 'application/json');
+                if (csrfToken) {
+                    xhr.setRequestHeader('X-CSRF-TOKEN', csrfToken);
+                }
+
+                xhr.upload.addEventListener('progress', (progressEvent) => {
+                    if (!progressEvent.lengthComputable) {
+                        return;
+                    }
+
+                    const percent = (progressEvent.loaded / progressEvent.total) * 100;
+                    showOverlay({
+                        title: 'Sedang mengunggah file preview...',
+                        message: 'Mohon tunggu. Browser sedang mengirim file ke server untuk disiapkan preview dan pencocokan data.',
+                        progressLabel: `Upload file ${Math.round(percent)}%`,
+                        percent,
+                        stageUpload: 'Upload file',
+                        stageMatch: 'Menunggu upload selesai',
+                        stageSave: 'Siapkan halaman preview',
+                        indeterminate: false,
+                    });
+                });
+
+                xhr.onreadystatechange = () => {
+                    if (xhr.readyState !== XMLHttpRequest.DONE) {
+                        return;
+                    }
+
+                    if (xhr.status >= 200 && xhr.status < 300) {
+                        let response = {};
+
+                        try {
+                            response = JSON.parse(xhr.responseText || '{}');
+                        } catch (error) {
+                            response = {};
+                        }
+
+                        showOverlay({
+                            title: 'Upload selesai, sistem sedang menyusun preview...',
+                            message: 'File sudah terkirim. Sekarang sistem sedang mencocokkan dokumen dan menyiapkan halaman preview.',
+                            progressLabel: 'Upload selesai, menyiapkan preview...',
+                            percent: 100,
+                            stageUpload: 'Upload selesai',
+                            stageMatch: 'Mencocokkan ke siswa lulus',
+                            stageSave: 'Membuka halaman preview',
+                            indeterminate: true,
+                        });
+
+                        window.location.href = response.redirect_url || window.location.href;
+                        return;
+                    }
+
+                    document.body.classList.remove('overflow-hidden');
+                    bulkUploadOverlay?.classList.add('hidden');
+                    bulkUploadOverlay?.classList.remove('flex');
+
+                    if (submitButton) {
+                        submitButton.disabled = false;
+                    }
+
+                    if (submitIcon) {
+                        submitIcon.classList.remove('fa-spinner', 'fa-spin');
+                        submitIcon.classList.add('fa-magnifying-glass');
+                    }
+
+                    if (submitLabel) {
+                        submitLabel.textContent = 'Preview Mapping Dokumen';
+                    }
+
+                    let errorMessage = 'Bulk upload gagal diproses. Silakan cek file lalu coba lagi.';
+
+                    try {
+                        const response = JSON.parse(xhr.responseText || '{}');
+                        if (response.message) {
+                            errorMessage = response.message;
+                        } else if (response.errors) {
+                            const firstError = Object.values(response.errors).flat()[0];
+                            if (firstError) {
+                                errorMessage = firstError;
+                            }
+                        }
+                    } catch (error) {
+                        // noop
+                    }
+
+                    Swal.fire({
+                        icon: 'error',
+                        title: 'Bulk upload gagal',
+                        text: errorMessage,
+                        confirmButtonColor: '#dc2626',
+                    });
+                };
+
+                xhr.send(formData);
+                return;
+            }
+
+            showOverlay({
+                progressLabel: mode === 'process' ? 'Menyimpan dokumen ke arsip...' : 'Menyiapkan proses...',
+                percent: mode === 'process' ? 100 : 15,
+                indeterminate: mode === 'process',
+            });
+        });
+    });
+
+    const graduationFilterForm = document.querySelector('[data-graduation-filter-form]');
+    const graduationAcademicYearFilter = document.querySelector('[data-graduation-academic-year-filter]');
+
+    if (graduationFilterForm && graduationAcademicYearFilter) {
+        graduationAcademicYearFilter.addEventListener('change', () => {
+            const classFilter = graduationFilterForm.querySelector('[name="class_id"]');
+
+            if (classFilter) {
+                classFilter.value = '';
+            }
+
+            graduationFilterForm.submit();
+        });
+    }
+
     const promotionForm = document.querySelector('[data-student-promotion-form]');
 
     if (promotionForm) {

resources/views/classes/index.blade.php

@@ -4,6 +4,116 @@
     action-label="Tambah Kelas"
     :action-url="route('classes.create')"
 >
+    <x-master-card title="Import Data Kelas" subtitle="Upload Excel/CSV untuk menambah atau memperbarui data kelas secara massal.">
+        <form method="POST" action="{{ route('classes.import.preview') }}" enctype="multipart/form-data" class="space-y-5">
+            @csrf
+            <div>
+                <label for="import_file" class="mb-2 block text-sm font-medium text-slate-700">File Excel / CSV</label>
+                <input id="import_file" name="import_file" type="file" accept=".xlsx,.csv,.txt" class="block w-full rounded-2xl border border-slate-200 bg-white px-4 py-3 text-sm text-slate-700 file:mr-4 file:rounded-xl file:border-0 file:bg-indigo-50 file:px-4 file:py-2 file:font-semibold file:text-indigo-700 hover:file:bg-indigo-100">
+                <p class="mt-2 text-xs text-slate-500">Gunakan template agar format kolom sesuai. Import ini akan update data lama jika nama kelas pada tahun ajaran yang sama sudah ada.</p>
+            </div>
+
+            <div class="flex flex-wrap items-center gap-3">
+                <button type="submit" class="inline-flex items-center rounded-2xl bg-indigo-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700">Preview Import</button>
+                <a href="{{ route('classes.import.template') }}" class="inline-flex items-center rounded-2xl border border-emerald-200 bg-emerald-50 px-5 py-3 text-sm font-semibold text-emerald-700 transition hover:bg-emerald-100">Download Template</a>
+            </div>
+        </form>
+
+        @if (!empty($importPreview))
+            <div class="mt-6 rounded-3xl border border-slate-200 bg-white p-5">
+                <div class="mb-5 grid grid-cols-1 gap-4 md:grid-cols-4">
+                    <div class="rounded-3xl border border-slate-200 bg-slate-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-slate-500">Total Baris</div>
+                        <div class="mt-2 text-3xl font-bold text-slate-800">{{ $importPreview['summary']['total_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-emerald-200 bg-emerald-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-emerald-600">Valid</div>
+                        <div class="mt-2 text-3xl font-bold text-emerald-700">{{ $importPreview['summary']['valid_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-sky-200 bg-sky-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-sky-600">Insert Baru</div>
+                        <div class="mt-2 text-3xl font-bold text-sky-700">{{ $importPreview['summary']['insert_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-amber-200 bg-amber-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-amber-600">Update Data</div>
+                        <div class="mt-2 text-3xl font-bold text-amber-700">{{ $importPreview['summary']['update_rows'] }}</div>
+                    </div>
+                </div>
+
+                @if (!empty($importPreview['errors']))
+                    <div class="mb-5 rounded-2xl border border-rose-200 bg-rose-50 px-5 py-4 text-sm text-rose-700">
+                        <div class="font-semibold">Ada baris yang belum valid.</div>
+                        <ul class="mt-2 list-disc space-y-1 pl-5">
+                            @foreach (array_slice($importPreview['errors'], 0, 10) as $error)
+                                <li>{{ $error }}</li>
+                            @endforeach
+                        </ul>
+                    </div>
+                @endif
+
+                <div class="overflow-x-auto rounded-3xl border border-slate-200">
+                    <table class="min-w-full divide-y divide-slate-200 text-sm">
+                        <thead class="bg-slate-50">
+                            <tr>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Baris</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Akademik</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Nama Kelas</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Detail</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Aksi</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Validasi</th>
+                            </tr>
+                        </thead>
+                        <tbody class="divide-y divide-slate-100 bg-white">
+                            @foreach ($importPreview['rows'] as $row)
+                                <tr class="align-top {{ $row['is_valid'] ? '' : 'bg-rose-50/50' }}">
+                                    <td class="px-4 py-4 font-semibold text-slate-700">{{ $row['row_number'] }}</td>
+                                    <td class="px-4 py-4 text-slate-600">
+                                        <div>Tahun: {{ $importReferenceData['academicYears'][$row['data']['academic_year_id']] ?? '-' }}</div>
+                                        <div>Jurusan: {{ $importReferenceData['departments'][$row['data']['department_id']] ?? '-' }}</div>
+                                    </td>
+                                    <td class="px-4 py-4 text-slate-700">
+                                        <div class="font-medium">{{ $row['data']['name'] ?: '-' }}</div>
+                                        <div class="text-xs text-slate-400">Tingkat: {{ $row['data']['level'] ?: '-' }}</div>
+                                    </td>
+                                    <td class="px-4 py-4 text-slate-600">
+                                        <div>Wali Kelas: {{ $row['data']['homeroom_teacher'] ?: '-' }}</div>
+                                        <div>Kapasitas: {{ $row['data']['capacity'] ?: '-' }}</div>
+                                        <div>Status: {{ ($row['data']['is_active'] ?? false) ? 'Aktif' : 'Nonaktif' }}</div>
+                                    </td>
+                                    <td class="px-4 py-4">
+                                        <span class="rounded-full px-3 py-1 text-xs font-semibold {{ $row['action'] === 'update' ? 'bg-amber-100 text-amber-700' : 'bg-sky-100 text-sky-700' }}">{{ $row['action'] === 'update' ? 'Update' : 'Insert' }}</span>
+                                    </td>
+                                    <td class="px-4 py-4 text-sm">
+                                        @if ($row['is_valid'])
+                                            <span class="rounded-full bg-emerald-100 px-3 py-1 text-xs font-semibold text-emerald-700">Valid</span>
+                                        @else
+                                            <div class="space-y-1 text-rose-700">
+                                                <div class="inline-flex rounded-full bg-rose-100 px-3 py-1 text-xs font-semibold">Perlu perbaikan</div>
+                                                <ul class="list-disc pl-4 text-xs">
+                                                    @foreach ($row['errors'] as $error)
+                                                        <li>{{ $error }}</li>
+                                                    @endforeach
+                                                </ul>
+                                            </div>
+                                        @endif
+                                    </td>
+                                </tr>
+                            @endforeach
+                        </tbody>
+                    </table>
+                </div>
+
+                @if ($importPreview['summary']['valid_rows'] > 0)
+                    <form method="POST" action="{{ route('classes.import') }}" class="mt-6 flex flex-wrap items-center gap-3">
+                        @csrf
+                        <input type="hidden" name="preview_token" value="{{ $importPreview['token'] }}">
+                        <button type="submit" class="inline-flex items-center rounded-2xl bg-emerald-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-emerald-200 transition hover:bg-emerald-700">Konfirmasi Import ke Database</button>
+                        <span class="text-sm text-slate-500">Hanya baris valid yang akan diproses.</span>
+                    </form>
+                @endif
+            </div>
+        @endif
+    </x-master-card>
     <x-master-card title="Generate Kelas Tahun Ajaran Baru" subtitle="Salin kelas dari tahun ajaran sumber ke tahun ajaran target. Cocok untuk menyiapkan kelas tahun ajaran baru sebelum promosi siswa.">
         <form method="POST" action="{{ route('classes.generate') }}" class="grid grid-cols-1 gap-4 xl:grid-cols-4 xl:items-end">
             @csrf

resources/views/departments/index.blade.php

@@ -4,6 +4,109 @@
     action-label="Tambah Program Keahlian"
     :action-url="route('departments.create')"
 >
+    <x-master-card title="Import Program Keahlian" subtitle="Upload Excel/CSV untuk menambah atau memperbarui data program keahlian secara massal.">
+        <form method="POST" action="{{ route('departments.import.preview') }}" enctype="multipart/form-data" class="space-y-5">
+            @csrf
+            <div>
+                <label for="import_file" class="mb-2 block text-sm font-medium text-slate-700">File Excel / CSV</label>
+                <input id="import_file" name="import_file" type="file" accept=".xlsx,.csv,.txt" class="block w-full rounded-2xl border border-slate-200 bg-white px-4 py-3 text-sm text-slate-700 file:mr-4 file:rounded-xl file:border-0 file:bg-indigo-50 file:px-4 file:py-2 file:font-semibold file:text-indigo-700 hover:file:bg-indigo-100">
+                <p class="mt-2 text-xs text-slate-500">Gunakan template agar format kolom sesuai. Import ini akan update data lama jika kode atau nama program keahlian sudah ada.</p>
+            </div>
+
+            <div class="flex flex-wrap items-center gap-3">
+                <button type="submit" class="inline-flex items-center rounded-2xl bg-indigo-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700">Preview Import</button>
+                <a href="{{ route('departments.import.template') }}" class="inline-flex items-center rounded-2xl border border-emerald-200 bg-emerald-50 px-5 py-3 text-sm font-semibold text-emerald-700 transition hover:bg-emerald-100">Download Template</a>
+            </div>
+        </form>
+
+        @if (!empty($importPreview))
+            <div class="mt-6 rounded-3xl border border-slate-200 bg-white p-5">
+                <div class="mb-5 grid grid-cols-1 gap-4 md:grid-cols-4">
+                    <div class="rounded-3xl border border-slate-200 bg-slate-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-slate-500">Total Baris</div>
+                        <div class="mt-2 text-3xl font-bold text-slate-800">{{ $importPreview['summary']['total_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-emerald-200 bg-emerald-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-emerald-600">Valid</div>
+                        <div class="mt-2 text-3xl font-bold text-emerald-700">{{ $importPreview['summary']['valid_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-sky-200 bg-sky-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-sky-600">Insert Baru</div>
+                        <div class="mt-2 text-3xl font-bold text-sky-700">{{ $importPreview['summary']['insert_rows'] }}</div>
+                    </div>
+                    <div class="rounded-3xl border border-amber-200 bg-amber-50 px-5 py-4">
+                        <div class="text-xs font-semibold uppercase tracking-[0.18em] text-amber-600">Update Data</div>
+                        <div class="mt-2 text-3xl font-bold text-amber-700">{{ $importPreview['summary']['update_rows'] }}</div>
+                    </div>
+                </div>
+
+                @if (!empty($importPreview['errors']))
+                    <div class="mb-5 rounded-2xl border border-rose-200 bg-rose-50 px-5 py-4 text-sm text-rose-700">
+                        <div class="font-semibold">Ada baris yang belum valid.</div>
+                        <ul class="mt-2 list-disc space-y-1 pl-5">
+                            @foreach (array_slice($importPreview['errors'], 0, 10) as $error)
+                                <li>{{ $error }}</li>
+                            @endforeach
+                        </ul>
+                    </div>
+                @endif
+
+                <div class="overflow-x-auto rounded-3xl border border-slate-200">
+                    <table class="min-w-full divide-y divide-slate-200 text-sm">
+                        <thead class="bg-slate-50">
+                            <tr>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Baris</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Kode</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Nama</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Status</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Aksi</th>
+                                <th class="px-4 py-3 text-left text-xs font-semibold uppercase tracking-[0.16em] text-slate-500">Validasi</th>
+                            </tr>
+                        </thead>
+                        <tbody class="divide-y divide-slate-100 bg-white">
+                            @foreach ($importPreview['rows'] as $row)
+                                <tr class="align-top {{ $row['is_valid'] ? '' : 'bg-rose-50/50' }}">
+                                    <td class="px-4 py-4 font-semibold text-slate-700">{{ $row['row_number'] }}</td>
+                                    <td class="px-4 py-4 text-slate-700">{{ $row['data']['code'] ?: '-' }}</td>
+                                    <td class="px-4 py-4 text-slate-700">
+                                        <div class="font-medium">{{ $row['data']['name'] ?: '-' }}</div>
+                                        <div class="text-xs text-slate-400">{{ $row['data']['description'] ?: 'Tanpa deskripsi' }}</div>
+                                    </td>
+                                    <td class="px-4 py-4 text-slate-600">{{ ($row['data']['is_active'] ?? false) ? 'Aktif' : 'Nonaktif' }}</td>
+                                    <td class="px-4 py-4">
+                                        <span class="rounded-full px-3 py-1 text-xs font-semibold {{ $row['action'] === 'update' ? 'bg-amber-100 text-amber-700' : 'bg-sky-100 text-sky-700' }}">{{ $row['action'] === 'update' ? 'Update' : 'Insert' }}</span>
+                                    </td>
+                                    <td class="px-4 py-4 text-sm">
+                                        @if ($row['is_valid'])
+                                            <span class="rounded-full bg-emerald-100 px-3 py-1 text-xs font-semibold text-emerald-700">Valid</span>
+                                        @else
+                                            <div class="space-y-1 text-rose-700">
+                                                <div class="inline-flex rounded-full bg-rose-100 px-3 py-1 text-xs font-semibold">Perlu perbaikan</div>
+                                                <ul class="list-disc pl-4 text-xs">
+                                                    @foreach ($row['errors'] as $error)
+                                                        <li>{{ $error }}</li>
+                                                    @endforeach
+                                                </ul>
+                                            </div>
+                                        @endif
+                                    </td>
+                                </tr>
+                            @endforeach
+                        </tbody>
+                    </table>
+                </div>
+
+                @if ($importPreview['summary']['valid_rows'] > 0)
+                    <form method="POST" action="{{ route('departments.import') }}" class="mt-6 flex flex-wrap items-center gap-3">
+                        @csrf
+                        <input type="hidden" name="preview_token" value="{{ $importPreview['token'] }}">
+                        <button type="submit" class="inline-flex items-center rounded-2xl bg-emerald-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-emerald-200 transition hover:bg-emerald-700">Konfirmasi Import ke Database</button>
+                        <span class="text-sm text-slate-500">Hanya baris valid yang akan diproses.</span>
+                    </form>
+                @endif
+            </div>
+        @endif
+    </x-master-card>
     <x-master-card title="Filter Data" subtitle="Cari berdasarkan kode, nama, atau deskripsi program keahlian.">
         <form method="GET" action="{{ route('departments.index') }}" class="flex flex-col gap-4 md:flex-row md:items-end">
             <div class="md:flex-1">

resources/views/graduated-students/bulk-upload.blade.php

@@ -78,7 +78,7 @@
                         </div>
                     </div>
 
-                    <form method="POST" action="{{ route('graduated-students.bulk-upload.preview') }}" enctype="multipart/form-data" class="space-y-5">
+                    <form method="POST" action="{{ route('graduated-students.bulk-upload.preview') }}" enctype="multipart/form-data" class="space-y-5" data-bulk-upload-form data-bulk-upload-mode="preview" data-bulk-upload-file-count-source="input" data-bulk-upload-ajax-preview="true" data-bulk-upload-preview-url="{{ route('graduated-students.bulk-upload.preview-ajax') }}">
                         @csrf
 
                         <div class="grid grid-cols-1 gap-5 md:grid-cols-2">
@@ -130,9 +130,9 @@
                         </div>
 
                         <div class="flex flex-wrap items-center gap-3">
-                            <button type="submit" class="inline-flex items-center gap-2 rounded-2xl bg-indigo-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700">
+                            <button type="submit" class="inline-flex items-center gap-2 rounded-2xl bg-indigo-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700 disabled:cursor-not-allowed disabled:opacity-70" data-bulk-upload-submit-button>
-                                <i class="fa-solid fa-magnifying-glass"></i>
+                                <i class="fa-solid fa-magnifying-glass" data-bulk-upload-submit-icon></i>
-                                <span>Preview Mapping Dokumen</span>
+                                <span data-bulk-upload-submit-label>Preview Mapping Dokumen</span>
                             </button>
                             <a href="{{ route('graduated-students.index') }}" class="inline-flex items-center gap-2 rounded-2xl border border-slate-200 bg-white px-5 py-3 text-sm font-semibold text-slate-700 transition hover:bg-slate-50">
                                 <i class="fa-solid fa-arrow-left"></i>
@@ -262,10 +262,10 @@
                     </div>
                 </div>
 
-                <form method="POST" action="{{ route('graduated-students.bulk-upload.store') }}" class="mt-6 flex flex-wrap items-center gap-3">
+                <form method="POST" action="{{ route('graduated-students.bulk-upload.store') }}" class="mt-6 flex flex-wrap items-center gap-3" data-bulk-upload-form data-bulk-upload-mode="process" data-bulk-upload-file-count-source="preview" data-bulk-upload-preview-count="{{ $preview['summary']['ready_to_upload'] ?? $preview['summary']['total_files'] ?? 0 }}">
                     @csrf
                     <input type="hidden" name="preview_token" value="{{ $preview['token'] }}">
-                    <button type="submit" class="inline-flex items-center gap-2 rounded-2xl bg-emerald-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-emerald-200 transition hover:bg-emerald-700">
+                    <button type="submit" class="inline-flex items-center gap-2 rounded-2xl bg-emerald-600 px-5 py-3 text-sm font-semibold text-white shadow-lg shadow-emerald-200 transition hover:bg-emerald-700 disabled:cursor-not-allowed disabled:opacity-70" data-bulk-upload-submit-button>
                         <i class="fa-solid fa-cloud-arrow-up"></i>
                         <span>Proses Bulk Upload</span>
                     </button>
@@ -273,4 +273,55 @@
             </x-master-card>
         @endif
     </div>
+
+    <div class="fixed inset-0 z-[11000] hidden items-center justify-center bg-slate-950/60 px-4" data-bulk-upload-overlay>
+        <div class="w-full max-w-lg rounded-3xl border border-white/10 bg-slate-900/95 p-6 text-white shadow-2xl backdrop-blur">
+            <div class="flex items-start gap-4">
+                <div class="flex h-14 w-14 shrink-0 items-center justify-center rounded-2xl bg-indigo-500/15 text-indigo-200">
+                    <i class="fa-solid fa-arrows-rotate animate-spin text-2xl"></i>
+                </div>
+                <div>
+                    <div class="text-lg font-bold" data-bulk-upload-overlay-title>Sedang memproses dokumen...</div>
+                    <div class="mt-2 text-sm leading-6 text-slate-300" data-bulk-upload-overlay-message>Mohon tunggu. File sedang diunggah dan dipetakan oleh sistem. Jangan tutup tab ini agar proses tidak terputus.</div>
+                </div>
+            </div>
+            <div class="mt-5">
+                <div class="mb-2 flex items-center justify-between gap-3 text-xs text-slate-300">
+                    <span class="font-semibold" data-bulk-upload-overlay-progress-label>Menunggu proses dimulai...</span>
+                    <span class="font-semibold" data-bulk-upload-overlay-progress-percent>0%</span>
+                </div>
+                <div class="overflow-hidden rounded-full bg-white/10">
+                    <div class="h-2 w-0 rounded-full bg-gradient-to-r from-indigo-400 via-sky-300 to-emerald-300 transition-all duration-300" data-bulk-upload-overlay-progress-bar></div>
+                </div>
+            </div>
+            <div class="mt-4 grid grid-cols-1 gap-3 sm:grid-cols-3">
+                <div class="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <div class="text-[11px] font-semibold uppercase tracking-[0.14em] text-slate-400">Tahap 1</div>
+                    <div class="mt-1 text-sm font-semibold text-white" data-bulk-upload-stage-upload>Upload file</div>
+                </div>
+                <div class="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <div class="text-[11px] font-semibold uppercase tracking-[0.14em] text-slate-400">Tahap 2</div>
+                    <div class="mt-1 text-sm font-semibold text-white" data-bulk-upload-stage-match>Cocokkan data</div>
+                </div>
+                <div class="rounded-2xl border border-white/10 bg-white/5 px-4 py-3">
+                    <div class="text-[11px] font-semibold uppercase tracking-[0.14em] text-slate-400">Tahap 3</div>
+                    <div class="mt-1 text-sm font-semibold text-white" data-bulk-upload-stage-save>Simpan hasil</div>
+                </div>
+            </div>
+            <div class="mt-4 flex flex-wrap items-center gap-3 text-xs text-slate-300">
+                <div class="inline-flex items-center gap-2 rounded-full border border-white/10 bg-white/5 px-3 py-1.5">
+                    <i class="fa-solid fa-files"></i>
+                    <span data-bulk-upload-overlay-file-count>Menyiapkan jumlah file...</span>
+                </div>
+                <div class="inline-flex items-center gap-2 rounded-full border border-white/10 bg-white/5 px-3 py-1.5">
+                    <i class="fa-solid fa-hourglass-half"></i>
+                    <span>Durasi tergantung jumlah dan ukuran file</span>
+                </div>
+            </div>
+            <div class="mt-4 rounded-2xl border border-white/10 bg-white/5 px-4 py-3 text-xs leading-5 text-slate-300">
+                Proses bulk upload bisa butuh beberapa detik, terutama jika file banyak atau ukuran file mendekati batas maksimum.
+            </div>
+        </div>
+    </div>
+
 </x-master-page>

resources/views/graduated-students/index.blade.php

@@ -81,11 +81,11 @@
 
     <x-master-card title="Filter Arsip Kelulusan" subtitle="Cari lulusan berdasarkan nama, identitas siswa, jurusan, kelas terakhir, tahun ajaran, dan status dokumen.">
         <div class="rounded-3xl border border-slate-200 bg-gradient-to-br from-white via-slate-50 to-sky-50/30 p-4 shadow-sm ring-1 ring-white/70">
-            <form method="GET" action="{{ $indexRoute }}" class="grid grid-cols-1 gap-4 md:grid-cols-2 xl:grid-cols-5">
+            <form method="GET" action="{{ $indexRoute }}" class="grid grid-cols-1 gap-4 md:grid-cols-2 xl:grid-cols-5" data-graduation-filter-form>
                 <x-form-input name="search" label="Pencarian" :value="$search" placeholder="Nama / NIS / NISN" />
-                <x-form-select name="academic_year_id" label="Tahun Ajaran" :options="$academicYears->all()" :value="$filters['academic_year_id']" />
+                <x-form-select name="academic_year_id" label="Tahun Ajaran" :options="$academicYears->all()" :value="$filters['academic_year_id']" data-graduation-academic-year-filter />
                 <x-form-select name="department_id" label="Program Keahlian" :options="$departments->all()" :value="$filters['department_id']" />
-                <x-form-select name="class_id" label="Kelas Terakhir" :options="$classes->all()" :value="$filters['class_id']" />
+                <x-form-select name="class_id" label="Kelas Terakhir" :options="$classes->all()" :value="$filters['class_id']" :placeholder="$filters['academic_year_id'] ? 'Pilih kelas terakhir' : 'Pilih tahun ajaran dulu'" />
                 <x-form-select name="document_status" label="Status Dokumen" :options="$documentStatusOptions" :value="$filters['document_status']" />
 
                 <input type="hidden" name="sort" value="{{ $sort }}">

resources/views/student-promotions/index.blade.php

@@ -222,8 +222,8 @@
                                         $errors->first($targetClassField),
                                         $errors->first($notesField),
                                     ])->filter();
-                                    $selectedPromote = old($targetClassField, $promoteClasses->firstWhere('id', $recommendation['target_class_id'])?->id ?? ($promoteClasses->first()?->id ?? ''));
+                                    $selectedPromote = old($targetClassField, $recommendation['action'] === 'promote' ? ($recommendation['target_class_id'] ?? '') : '');
-                                    $selectedRepeat = old($targetClassField, $repeatClasses->firstWhere('id', $recommendation['target_class_id'])?->id ?? ($repeatClasses->first()?->id ?? ''));
+                                    $selectedRepeat = old($targetClassField, $recommendation['action'] === 'repeat' ? ($recommendation['target_class_id'] ?? '') : '');
                                     $promoteClassOptions = $promoteClasses->map(fn ($classRoom) => [
                                         'id' => $classRoom->id,
                                         'name' => $classRoom->name,

resources/views/users/_form.blade.php

@@ -1,13 +1,24 @@
 <div class="grid grid-cols-1 gap-5 md:grid-cols-2">
     <x-form-input name="name" label="Nama Lengkap" :value="$user->name ?? ''" required />
     <x-form-input name="email" label="Email" type="email" :value="$user->email ?? ''" required />
+
+    <div>
         <x-form-select name="role" label="Role" :options="$roleOptions" :value="$user->role ?? 'staff'" placeholder="-- Pilih role --" required />
+        <p class="mt-2 text-xs text-slate-500">Administrator punya akses penuh ke pengaturan sistem, staff hanya untuk operasional harian.</p>
+    </div>
 
     <div class="rounded-3xl border border-slate-200 bg-slate-50 p-5 md:col-span-2">
+        <div class="mb-4 flex items-start gap-3 rounded-2xl border border-indigo-100 bg-indigo-50 px-4 py-3 text-sm text-indigo-700">
+            <i class="fa-solid fa-shield-halved mt-0.5"></i>
+            <div>
+                <div class="font-semibold">Keamanan akun</div>
+                <div class="mt-1 text-xs text-indigo-700/80">Gunakan password minimal 8 karakter. Untuk akun yang sedang diedit, password boleh dikosongkan jika tidak ingin diubah.</div>
+            </div>
+        </div>
         <div class="grid grid-cols-1 gap-5 md:grid-cols-2">
             <x-form-input name="password" label="Password {{ isset($user) ? '(opsional jika tidak diubah)' : '' }}" type="password" />
             <x-form-input name="password_confirmation" label="Konfirmasi Password" type="password" />
         </div>
-        <p class="mt-3 text-xs text-slate-500">Password minimal 8 karakter.</p>
+        <p class="mt-3 text-xs text-slate-500">Tips: kombinasikan huruf besar, huruf kecil, angka, dan simbol untuk password yang lebih kuat.</p>
     </div>
 </div>

resources/views/users/index.blade.php

@@ -1,10 +1,34 @@
 <x-master-page title="Manajemen Pengguna" description="Kelola akun administrator dan staff yang dapat mengakses panel Database Kesiswaan." action-label="Tambah Pengguna" :action-url="route('settings.users.create')">
+    <div class="mb-6 grid grid-cols-1 gap-4 md:grid-cols-3">
+        <div class="rounded-3xl border border-slate-200 bg-slate-50 px-5 py-4">
+            <div class="text-xs font-semibold uppercase tracking-[0.18em] text-slate-500">Total Pengguna</div>
+            <div class="mt-2 text-3xl font-bold text-slate-800">{{ $stats['total'] }}</div>
+        </div>
+        <div class="rounded-3xl border border-indigo-200 bg-indigo-50 px-5 py-4">
+            <div class="text-xs font-semibold uppercase tracking-[0.18em] text-indigo-600">Administrator</div>
+            <div class="mt-2 text-3xl font-bold text-indigo-700">{{ $stats['admins'] }}</div>
+        </div>
+        <div class="rounded-3xl border border-slate-200 bg-white px-5 py-4">
+            <div class="text-xs font-semibold uppercase tracking-[0.18em] text-slate-500">Staff</div>
+            <div class="mt-2 text-3xl font-bold text-slate-700">{{ $stats['staff'] }}</div>
+        </div>
+    </div>
+
     <x-master-card title="Daftar Pengguna" subtitle="Gunakan halaman ini untuk menambah, mengubah, dan menghapus akun admin internal.">
         <form method="GET" class="mb-5">
-            <div class="grid grid-cols-1 gap-3 md:grid-cols-[1fr_auto]">
+            <div class="rounded-3xl border border-slate-200 bg-slate-50/80 p-4">
+                <div class="grid grid-cols-1 gap-3 md:grid-cols-[minmax(0,1fr)_auto] md:items-end">
                     <x-form-input name="search" label="Cari Pengguna" :value="$search" placeholder="Cari nama atau email..." />
-                <div class="flex items-end">
+                    <div class="flex flex-col gap-2 sm:flex-row md:justify-end">
-                    <button type="submit" class="inline-flex h-12 items-center justify-center rounded-2xl bg-indigo-600 px-5 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700">Cari</button>
+                        <button type="submit" class="inline-flex h-12 items-center justify-center rounded-2xl bg-indigo-600 px-5 text-sm font-semibold text-white shadow-lg shadow-indigo-200 transition hover:bg-indigo-700">
+                            <i class="fa-solid fa-magnifying-glass mr-2 text-xs"></i>
+                            Cari
+                        </button>
+                        <a href="{{ route('settings.users.index') }}" class="inline-flex h-12 items-center justify-center rounded-2xl border border-slate-200 bg-white px-5 text-sm font-semibold text-slate-700 transition hover:bg-slate-100">
+                            <i class="fa-solid fa-rotate-left mr-2 text-xs"></i>
+                            Reset
+                        </a>
+                    </div>
                 </div>
             </div>
         </form>
@@ -23,22 +47,39 @@
                 <tbody class="divide-y divide-slate-100 bg-white">
                     @forelse ($users as $user)
                         <tr>
-                            <td class="px-4 py-4 font-medium text-slate-800">{{ $user->name }}</td>
+                            <td class="px-4 py-4">
+                                <div class="font-medium text-slate-800">{{ $user->name }}</div>
+                                @if (auth()->id() === $user->id)
+                                    <div class="mt-1 text-xs font-semibold text-emerald-600">Akun yang sedang dipakai</div>
+                                @endif
+                            </td>
                             <td class="px-4 py-4 text-slate-600">{{ $user->email }}</td>
                             <td class="px-4 py-4">
                                 <span class="rounded-full px-3 py-1 text-xs font-semibold {{ $user->role === 'admin' ? 'bg-indigo-100 text-indigo-700' : 'bg-slate-100 text-slate-700' }}">
                                     {{ $roleOptions[$user->role] ?? ucfirst($user->role) }}
                                 </span>
                             </td>
-                            <td class="px-4 py-4 text-slate-500">{{ auth()->id() === $user->id ? 'Sedang dipakai login' : 'Aktif' }}</td>
+                            <td class="px-4 py-4">
+                                @if (auth()->id() === $user->id)
+                                    <span class="rounded-full bg-emerald-100 px-3 py-1 text-xs font-semibold text-emerald-700">Login saat ini</span>
+                                @else
+                                    <span class="rounded-full bg-slate-100 px-3 py-1 text-xs font-semibold text-slate-600">Aktif</span>
+                                @endif
+                            </td>
                             <td class="px-4 py-4">
                                 <div class="flex justify-end gap-2">
                                     <a href="{{ route('settings.users.edit', $user) }}" class="inline-flex items-center rounded-xl border border-slate-200 px-3 py-2 text-xs font-semibold text-slate-700 transition hover:bg-slate-50">Edit</a>
-                                    <form method="POST" action="{{ route('settings.users.destroy', $user) }}" onsubmit="return confirm('Hapus akun ini?')">
+                                    @php($isCurrentUser = auth()->id() === $user->id)
+                                    @php($isLastAdmin = $user->role === 'admin' && ($stats['admins'] ?? 0) <= 1)
+                                    @if ($isCurrentUser || $isLastAdmin)
+                                        <button type="button" disabled class="cursor-not-allowed rounded-xl border border-slate-200 bg-slate-100 px-3 py-2 text-xs font-semibold text-slate-400" title="{{ $isCurrentUser ? 'Akun yang sedang dipakai login tidak bisa dihapus' : 'Minimal harus ada satu akun admin aktif' }}">Hapus</button>
+                                    @else
+                                        <form method="POST" action="{{ route('settings.users.destroy', $user) }}" class="delete-form" data-entity="akun pengguna {{ $user->name }}" data-confirm-title="Hapus akun pengguna?" data-confirm-text="Akun {{ $user->name }} akan dihapus dari sistem. Tindakan ini tidak bisa dibatalkan.">
                                             @csrf
                                             @method('DELETE')
                                             <button type="submit" class="inline-flex items-center rounded-xl border border-rose-200 px-3 py-2 text-xs font-semibold text-rose-600 transition hover:bg-rose-50">Hapus</button>
                                         </form>
+                                    @endif
                                 </div>
                             </td>
                         </tr>

routes/web.php

@@ -45,7 +45,13 @@ Route::middleware(['auth', 'verified'])->group(function () {
 
     Route::middleware('role:admin')->group(function () {
         Route::resource('academic-years', AcademicYearController::class);
+        Route::get('departments/import/template', [DepartmentController::class, 'downloadImportTemplate'])->name('departments.import.template');
+        Route::post('departments/import/preview', [DepartmentController::class, 'previewImport'])->name('departments.import.preview');
+        Route::post('departments/import', [DepartmentController::class, 'import'])->name('departments.import');
         Route::resource('departments', DepartmentController::class);
+        Route::get('classes/import/template', [SchoolClassController::class, 'downloadImportTemplate'])->name('classes.import.template');
+        Route::post('classes/import/preview', [SchoolClassController::class, 'previewImport'])->name('classes.import.preview');
+        Route::post('classes/import', [SchoolClassController::class, 'import'])->name('classes.import');
         Route::post('classes/generate', [SchoolClassController::class, 'generate'])->name('classes.generate');
         Route::delete('classes/bulk-delete', [SchoolClassController::class, 'bulkDestroy'])->name('classes.bulk-destroy');
         Route::resource('classes', SchoolClassController::class);
@@ -74,6 +80,7 @@ Route::middleware(['auth', 'verified'])->group(function () {
     Route::get('students/lulus', [GraduatedStudentController::class, 'index'])->name('graduated-students.index');
     Route::get('students/lulus/bulk-upload', [GraduationBulkUploadController::class, 'index'])->name('graduated-students.bulk-upload.index');
     Route::post('students/lulus/bulk-upload/preview', [GraduationBulkUploadController::class, 'preview'])->name('graduated-students.bulk-upload.preview');
+    Route::post('students/lulus/bulk-upload/preview-ajax', [GraduationBulkUploadController::class, 'previewAjax'])->name('graduated-students.bulk-upload.preview-ajax');
     Route::post('students/lulus/bulk-upload', [GraduationBulkUploadController::class, 'store'])->name('graduated-students.bulk-upload.store');
     Route::get('students/lulus/{graduatedStudent}', [GraduatedStudentController::class, 'show'])->name('graduated-students.show');
     Route::patch('students/lulus/{graduatedStudent}', [GraduatedStudentController::class, 'update'])->name('graduated-students.update');
@@ -104,3 +111,4 @@ Route::middleware(['auth', 'verified'])->group(function () {
 });
 
 require __DIR__.'/auth.php';
+