refactor: move tab logic and implement Quill editor and GitHub commit integration in scratch_test.js

app/Filament/Admin/Resources/InternApplications/InternApplicationResource.php

@@ -203,12 +203,22 @@ class InternApplicationResource extends Resource
                                         foreach ($days as $d) {
                                             $dayNum = $d['day_number'];
                                             $dateF = $d['formatted_date'];
-                                            $content = isset($saved[$dayNum]) ? $saved[$dayNum]->content : '';
+                                            $entry = $saved->get($dayNum);
+                                            $content = $entry ? $entry->content : '';
+                                            $isRetro = $entry ? $entry->is_retroactive : false;
+                                            $updatedAt = $entry ? $entry->updated_at->format('d.m.Y H:i') : null;
                                             
                                             $html .= '<div style="margin-bottom: 12px; padding: 12px; border: 1px solid #e2e8f0; border-radius: 8px; background: #f8fafc;">';
                                             $html .= '  <div style="display:flex; justify-content:between; font-size:11px; font-weight:700; color:#475569; border-bottom:1px solid #e2e8f0; padding-bottom:6px; margin-bottom:8px;">';
                                             $html .= '    <span style="font-weight: 800; color: #2563eb;">' . $dayNum . '. Gün Raporu</span>';
+                                            if ($isRetro) {
+                                                $html .= '    <span style="margin-left: 10px; background: #fee2e2; color: #991b1b; padding: 1px 6px; border-radius: 4px; font-size: 9px; font-weight: 800;">GERİYE DÖNÜK KAYIT</span>';
+                                            }
+                                            if ($updatedAt) {
+                                                $html .= '    <span style="margin-left: auto;">Son Güncelleme: ' . $updatedAt . '</span>';
+                                            } else {
                                                 $html .= '    <span style="margin-left: auto;">' . $dateF . '</span>';
+                                            }
                                             $html .= '  </div>';
                                             $html .= '  <div style="font-size:12px; color:#1e293b; white-space:pre-wrap; line-height:1.5;">' . ($content ? e($content) : '<em style="color:#94a3b8;">Rapor yazılmamış</em>') . '</div>';
                                             $html .= '</div>';

app/Http/Controllers/CareerController.php

@@ -472,21 +472,32 @@ class CareerController extends Controller
         ]);
 
         $dateObj = \Carbon\Carbon::parse($request->date);
+
+        // 1. Prevent future entries
+        if ($dateObj->isFuture()) {
+            return response()->json(['success' => false, 'message' => 'İleriye dönük staj günleri için defter doldurulamaz.'], 422);
+        }
+
+        // 2. Prevent weekend entries
         if ($dateObj->isWeekend()) {
             return response()->json(['success' => false, 'message' => 'Hafta sonu günlerine staj günlüğü girilemez.'], 422);
         }
 
+        // 3. Determine if retroactive
+        $isRetroactive = $dateObj->lt(\Carbon\Carbon::today());
+
         $entry = \App\Models\InternshipJournalEntry::updateOrCreate([
             'career_application_id' => $intern->id,
             'day_number' => $request->day_number,
             'date' => $request->date,
         ], [
             'content' => $request->content,
+            'is_retroactive' => $isRetroactive,
         ]);
 
         return response()->json([
             'success' => true,
-            'message' => $request->day_number . '. Gün kaydı başarıyla kaydedildi.',
+            'message' => $request->day_number . '. Gün kaydı başarıyla kaydedildi.' . ($isRetroactive ? ' (Geriye Dönük Kayıt)' : ''),
             'entry' => $entry
         ]);
     }

app/Models/InternshipJournalEntry.php

@@ -14,6 +14,11 @@ class InternshipJournalEntry extends Model
         'day_number',
         'date',
         'content',
+        'is_retroactive',
+    ];
+
+    protected $casts = [
+        'is_retroactive' => 'boolean',
     ];
 
     /**

database/migrations/2026_07_01_180002_add_retroactive_fields_to_internship_journal_entries.php

@@ -0,0 +1,28 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('internship_journal_entries', function (Blueprint $table) {
+            $table->boolean('is_retroactive')->default(false);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('internship_journal_entries', function (Blueprint $table) {
+            $table->dropColumn('is_retroactive');
+        });
+    }
+};

resources/views/front/career/intern_dashboard.blade.php

@@ -722,14 +722,20 @@
                           </div>
 
                           <div class="space-y-4">
-                              <div>
+                              <div id="future-warning" class="hidden p-4 bg-amber-50/50 border border-amber-200 rounded-2xl text-xs text-amber-700 font-semibold leading-relaxed">
+                                  <i class="uil uil-exclamation-triangle text-sm mr-1"></i> Bu staj günü henüz gerçekleşmediği için staj günlüğü yazılamaz veya düzenlenemez.
+                              </div>
+
+                              <div id="editor-wrapper">
                                   <label class="block text-xs font-extrabold text-slate-500 uppercase tracking-wider mb-2">Günlük Çalışma Raporu</label>
-                                  <textarea id="editor-content" rows="10" placeholder="Bu staj gününde yaptığınız çalışmaları detaylıca yazın..." class="w-full px-4 py-3 rounded-xl border border-slate-200 focus:border-blue-400 focus:ring-1 focus:ring-blue-400 focus:outline-none text-sm font-semibold text-slate-700 bg-white transition-all"></textarea>
+                                  <div id="quill-editor-container" class="rounded-xl border border-slate-200 overflow-hidden">
+                                      <div id="editor-content-quill" style="height: 250px;"></div>
+                                  </div>
                               </div>
 
                               <div class="flex justify-between items-center">
                                   <div id="save-status" class="text-xs font-semibold text-slate-400"></div>
-                                  <button type="button" onclick="saveActiveDay()" class="px-5 py-2.5 bg-blue-600 hover:bg-blue-700 text-white font-bold rounded-xl text-xs transition-all shadow-md shadow-blue-500/10">
+                                  <button type="button" id="save-btn" onclick="saveActiveDay()" class="px-5 py-2.5 bg-blue-600 hover:bg-blue-700 text-white font-bold rounded-xl text-xs transition-all shadow-md shadow-blue-500/10">
                                       Deftere Kaydet
                                   </button>
                               </div>
@@ -789,10 +795,28 @@
 </div>
 
 @push('styles')
+<link href="https://cdn.jsdelivr.net/npm/quill@2.0.2/dist/quill.snow.css" rel="stylesheet" />
+<script src="https://cdn.jsdelivr.net/npm/quill@2.0.2/dist/quill.js"></script>
 <script src="https://cdn.tailwindcss.com"></script>
 <script>
+
+
+  let quill;
+
   // Tab Switch Logic
   document.addEventListener('DOMContentLoaded', function() {
+    // Initialize Quill editor
+    quill = new Quill('#editor-content-quill', {
+      theme: 'snow',
+      modules: {
+        toolbar: [
+          ['bold', 'italic', 'underline', 'strike'],        // toggled buttons
+          [{ 'list': 'ordered'}, { 'list': 'bullet' }],
+          ['clean']                                         // remove formatting button
+        ]
+      }
+    });
+
     const tabButtons = document.querySelectorAll('.tab-btn');
     const tabPanels = document.querySelectorAll('.tab-panel');
 
@@ -906,8 +930,40 @@
 
       document.getElementById('editor-day-title').textContent = `${dayNum}. Gün`;
       document.getElementById('editor-day-date').textContent = dateFormatted;
-      document.getElementById('editor-content').value = savedContent;
+      
+      quill.root.innerHTML = savedContent || '';
       document.getElementById('save-status').textContent = '';
+
+      // Future validation
+      const dateParts = dateVal.split('-');
+      const selectedDate = new Date(dateParts[0], dateParts[1] - 1, dateParts[2]);
+      const today = new Date();
+      today.setHours(0,0,0,0);
+      
+      const isFuture = selectedDate > today;
+      const warningBlock = document.getElementById('future-warning');
+      const saveBtn = document.getElementById('save-btn');
+      const gitBtn = document.querySelector('button[onclick="fillFromGithub()"]');
+
+      if (isFuture) {
+          warningBlock.classList.remove('hidden');
+          quill.enable(false);
+          saveBtn.disabled = true;
+          saveBtn.classList.add('opacity-50', 'cursor-not-allowed');
+          if (gitBtn) {
+              gitBtn.disabled = true;
+              gitBtn.classList.add('opacity-50', 'cursor-not-allowed');
+          }
+      } else {
+          warningBlock.classList.add('hidden');
+          quill.enable(true);
+          saveBtn.disabled = false;
+          saveBtn.classList.remove('opacity-50', 'cursor-not-allowed');
+          if (gitBtn) {
+              gitBtn.disabled = false;
+              gitBtn.classList.remove('opacity-50', 'cursor-not-allowed');
+          }
+      }
     }
   }
 
@@ -923,25 +979,26 @@
       return;
     }
 
-    let commitText = "";
+    let commitHtml = "<ul>";
     const sorted = [...dayCommits].reverse();
     sorted.forEach(c => {
       const msg = c.commit.message;
       const sha = c.sha.substring(0, 7);
       const authorDate = new Date(c.commit.author.date);
       const time = authorDate.toLocaleTimeString('tr-TR', { hour: '2-digit', minute: '2-digit' });
-      commitText += `- [${time}] (${sha}) ${msg}\n`;
+      commitHtml += `<li><strong>[${time}]</strong> (<em>${sha}</em>) ${msg}</li>`;
     });
+    commitHtml += "</ul>";
 
-    const textarea = document.getElementById('editor-content');
-    if (textarea.value.trim() !== "") {
+    const currentHtml = quill.root.innerHTML.trim();
+    if (currentHtml !== "" && currentHtml !== "<p><br></p>") {
       if (confirm("Mevcut rapor içeriğinizin sonuna bu günün commitlerini eklemek ister misiniz? (Hayır derseniz mevcut içerik silinip commitler yazılır.)")) {
-        textarea.value = textarea.value.trim() + "\n\n" + commitText.trim();
+        quill.root.innerHTML = currentHtml + "<br><br>" + commitHtml;
       } else {
-        textarea.value = commitText.trim();
+        quill.root.innerHTML = commitHtml;
       }
     } else {
-      textarea.value = commitText.trim();
+      quill.root.innerHTML = commitHtml;
     }
   }
 
@@ -951,7 +1008,10 @@
 
     const dayNum = btn.getAttribute('data-day-num');
     const dateVal = btn.getAttribute('data-date');
-    const contentVal = document.getElementById('editor-content').value;
+    let contentVal = quill.root.innerHTML;
+    if (contentVal === '<p><br></p>') {
+        contentVal = '';
+    }
     const statusText = document.getElementById('save-status');
 
     statusText.textContent = "Kaydediliyor...";

resources/views/front/career/print.blade.php

@@ -207,11 +207,25 @@
             background: #ffffff;
             margin-bottom: 20px;
             min-height: 250px;
-            white-space: pre-wrap;
             line-height: 1.6;
             color: #334155;
             font-size: 13px;
         }
+        .content-area ul {
+            list-style-type: disc !important;
+            padding-left: 20px !important;
+            margin-top: 8px !important;
+            margin-bottom: 8px !important;
+        }
+        .content-area ol {
+            list-style-type: decimal !important;
+            padding-left: 20px !important;
+            margin-top: 8px !important;
+            margin-bottom: 8px !important;
+        }
+        .content-area li {
+            margin-bottom: 4px !important;
+        }
         
         .empty-content {
             color: #94a3b8;
@@ -383,7 +397,7 @@
                 <!-- Content Area -->
                 <div class="content-area">
                     @if($entry && trim($entry->content))
-                        {!! nl2br(e($entry->content)) !!}
+                        {!! $entry->content !!}
                     @else
                         <div class="empty-content">Bu gün için herhangi bir staj raporu girilmemiştir.</div>
                     @endif

resources/views/front/career/verify.blade.php

@@ -3,6 +3,7 @@
 @section('content')
 <link href="https://fonts.googleapis.com/css2?family=Cinzel:wght@500;700;800;900&family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,500;0,700;1,400&display=swap" rel="stylesheet">
 
+@if($application->status === 'accepted')
 <div class="bg-slate-100 py-12 no-print">
     <div class="container max-w-6xl mx-auto px-4">
         <!-- Verification Banner (e-Devlet Style) -->
@@ -21,88 +22,9 @@
                 <button onclick="downloadPDF()" id="pdf-btn" class="px-4 py-2 bg-orange-600 hover:bg-orange-700 text-white text-sm font-bold rounded-lg transition-all shadow-sm flex items-center gap-1.5 whitespace-nowrap">
                     <i class="uil uil-file-download text-base" id="pdf-icon"></i>
                     <span class="spinner-border spinner-border-sm hidden animate-spin w-3.5 h-3.5 border-2 border-white border-t-transparent rounded-full" id="pdf-spinner" role="status"></span>
-                    <span id="pdf-btn-text">PDF İndir</span>
-                </button>
             </div>
         </div>
 
-        <!-- ================= PAGE 3: STAJ DEFTERİ (PORTRAIT A4) ================= -->
-        @if($application->notebook_approved || $application->notebook_supervisor_signed || $application->notebook_unit_signed)
-        <div class="notebook-container-wrapper overflow-hidden w-full flex justify-center items-start mt-8">
-            <div id="notebook-node" class="transcript-page bg-white rounded-[2rem] shadow-2xl p-6 md:p-8 relative overflow-hidden mx-auto">
-                
-                <!-- Thin border decor for notebook -->
-                <div class="absolute inset-4 border border-slate-100 rounded-[1.5rem] pointer-events-none"></div>
-
-                <div class="relative z-10 flex flex-col justify-between h-full text-slate-700">
-                    <div>
-                        <!-- Header -->
-                        <div class="flex justify-between items-center pb-2 border-b border-slate-100 mb-3">
-                            <div>
-                                <h2 class="font-serif font-bold text-slate-900 transcript-header-title">ONAYLI STAJ DEFTERİ RAPORU</h2>
-                                <p class="text-slate-400 tracking-wider mt-0.5 transcript-header-subtitle">DİJİTAL İMZALI VE ONAYLI STAJ RAPORLARI</p>
-                            </div>
-                            <img src="{{ asset('logos/truncgil-yatay.svg') }}" alt="Trunçgil Logo" class="h-6 object-contain">
-                        </div>
-
-                        <!-- Signatures Information -->
-                        <div class="bg-emerald-50 border border-emerald-200 rounded-xl p-3 mb-4 flex justify-between items-center">
-                            <div>
-                                <span class="text-xs font-extrabold text-emerald-800 uppercase block tracking-wider">Dijital İmza Durumu</span>
-                                <span class="text-[10px] text-emerald-600 font-semibold block mt-0.5">Bu staj defteri yetkililer tarafından elektronik olarak imzalanmıştır.</span>
-                            </div>
-                            <div class="flex gap-2">
-                                @if($application->notebook_supervisor_signed)
-                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
-                                    Sorumlu: {{ $application->notebook_supervisor_name ?: 'Alperen Trunç' }}
-                                </span>
-                                @endif
-                                @if($application->notebook_unit_signed)
-                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
-                                    Yetkili: {{ $application->notebook_unit_name ?: 'Birim Yetkilisi' }}
-                                </span>
-                                @endif
-                            </div>
-                        </div>
-
-                        <!-- Notebook Days content overview -->
-                        <div class="overflow-y-auto max-h-[700px] pr-2 no-scrollbar space-y-4">
-                            @foreach($days as $day)
-                                @php
-                                    $entry = $savedEntries->get($day['day_number']);
-                                @endphp
-                                @if($entry && trim($entry->content))
-                                <div class="p-3 bg-slate-50 border border-slate-100 rounded-xl">
-                                    <div class="flex justify-between items-center pb-1.5 border-b border-slate-200/50 mb-1.5">
-                                        <span class="text-xs font-extrabold text-slate-800">{{ $day['day_number'] }}. Gün Raporu</span>
-                                        <span class="text-[10px] text-slate-400 font-bold">{{ $day['formatted_date'] }}</span>
-                                    </div>
-                                    <p class="text-xs text-slate-600 whitespace-pre-wrap leading-relaxed" style="font-size: 11px;">{{ $entry->content }}</p>
-                                </div>
-                                @endif
-                            @endforeach
-                        </div>
-                    </div>
-
-                    <!-- Footer -->
-                    <div class="w-full flex justify-between items-center pt-2 border-t border-slate-100 gap-4 mt-auto">
-                        <div class="flex items-center gap-3">
-                            <img src="https://api.qrserver.com/v1/create-qr-code/?size=120x120&data={{ urlencode(route('internship.verify', $application->certificate_code)) }}" alt="QR Code" class="w-14 h-14 border border-slate-200 p-0.5 rounded-lg bg-white">
-                            <div>
-                                <span class="font-bold text-slate-400 tracking-wider block verify-code-label">GÜVENLİ DOĞRULAMA KODU</span>
-                                <span class="font-mono font-bold text-slate-800 block verify-code">{{ $application->certificate_code }}</span>
-                            </div>
-                        </div>
-                        <div class="text-right text-slate-400 footer-address">
-                            Trunçgil Teknoloji San. ve Tic. Ltd. Şti.<br>
-                            Gaziantep Üniversitesi Teknopark No: 4A
-                        </div>
-                    </div>
-                </div>
-            </div>
-        </div>
-        @endif
-
     </div>
 </div>
 
@@ -242,9 +164,98 @@
             </div>
         </div>
 
+        <!-- ================= PAGE 3: STAJ DEFTERİ (PORTRAIT A4) ================= -->
+        @if($application->notebook_approved || $application->notebook_supervisor_signed || $application->notebook_unit_signed)
+        <div class="notebook-container-wrapper overflow-hidden w-full flex justify-center items-start mt-8">
+            <div id="notebook-node" class="transcript-page bg-white rounded-[2rem] shadow-2xl p-6 md:p-8 relative overflow-hidden mx-auto">
+                
+                <!-- Thin border decor for notebook -->
+                <div class="absolute inset-4 border border-slate-100 rounded-[1.5rem] pointer-events-none"></div>
+
+                <div class="relative z-10 flex flex-col justify-between h-full text-slate-700">
+                    <div>
+                        <!-- Header -->
+                        <div class="flex justify-between items-center pb-2 border-b border-slate-100 mb-3">
+                            <div>
+                                <h2 class="font-serif font-bold text-slate-900 transcript-header-title">ONAYLI STAJ DEFTERİ RAPORU</h2>
+                                <p class="text-slate-400 tracking-wider mt-0.5 transcript-header-subtitle">DİJİTAL İMZALI VE ONAYLI STAJ RAPORLARI</p>
+                            </div>
+                            <img src="{{ asset('logos/truncgil-yatay.svg') }}" alt="Trunçgil Logo" class="h-6 object-contain">
+                        </div>
+
+                        <!-- Signatures Information -->
+                        <div class="bg-emerald-50 border border-emerald-200 rounded-xl p-3 mb-4 flex justify-between items-center">
+                            <div>
+                                <span class="text-xs font-extrabold text-emerald-800 uppercase block tracking-wider">Dijital İmza Durumu</span>
+                                <span class="text-[10px] text-emerald-600 font-semibold block mt-0.5">Bu staj defteri yetkililer tarafından elektronik olarak imzalanmıştır.</span>
+                            </div>
+                            <div class="flex gap-2">
+                                @if($application->notebook_supervisor_signed)
+                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
+                                    Sorumlu: {{ $application->notebook_supervisor_name ?: 'Alperen Trunç' }}
+                                </span>
+                                @endif
+                                @if($application->notebook_unit_signed)
+                                <span class="inline-flex px-2 py-1 rounded bg-emerald-100 text-emerald-800 text-[8px] font-extrabold uppercase border border-emerald-200">
+                                    Yetkili: {{ $application->notebook_unit_name ?: 'Birim Yetkilisi' }}
+                                </span>
+                                @endif
                             </div>
                         </div>
 
+                        <!-- Notebook Days content overview -->
+                        <div class="overflow-y-auto max-h-[700px] pr-2 no-scrollbar space-y-4">
+                            @foreach($days as $day)
+                                @php
+                                    $entry = $savedEntries->get($day['day_number']);
+                                @endphp
+                                @if($entry && trim($entry->content))
+                                <div class="p-3 bg-slate-50 border border-slate-100 rounded-xl">
+                                    <div class="flex justify-between items-center pb-1.5 border-b border-slate-200/50 mb-1.5">
+                                        <span class="text-xs font-extrabold text-slate-800">{{ $day['day_number'] }}. Gün Raporu</span>
+                                        <span class="text-[10px] text-slate-400 font-bold">{{ $day['formatted_date'] }}</span>
+                                    </div>
+                                    <div class="text-xs text-slate-600 leading-relaxed verify-log-content" style="font-size: 11px;">{!! $entry->content !!}</div>
+                                </div>
+                                @endif
+                            @endforeach
+                        </div>
+                    </div>
+
+                    <!-- Footer -->
+                    <div class="w-full flex justify-between items-center pt-2 border-t border-slate-100 gap-4 mt-auto">
+                        <div class="flex items-center gap-3">
+                            <img src="https://api.qrserver.com/v1/create-qr-code/?size=120x120&data={{ urlencode(route('internship.verify', $application->certificate_code)) }}" alt="QR Code" class="w-14 h-14 border border-slate-200 p-0.5 rounded-lg bg-white">
+                            <div>
+                                <span class="font-bold text-slate-400 tracking-wider block verify-code-label">GÜVENLİ DOĞRULAMA KODU</span>
+                                <span class="font-mono font-bold text-slate-800 block verify-code">{{ $application->certificate_code }}</span>
+                            </div>
+                        </div>
+                        <div class="text-right text-slate-400 footer-address">
+                            Trunçgil Teknoloji San. ve Tic. Ltd. Şti.<br>
+                            Gaziantep Üniversitesi Teknopark No: 4A
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        @endif
+
+    </div>
+</div>
+@else
+    <div class="min-h-screen bg-slate-100 flex items-center justify-center p-6 no-print">
+        <div class="bg-white rounded-3xl p-8 max-w-md w-full shadow-2xl border border-slate-100 text-center">
+            <div class="w-16 h-16 rounded-full bg-red-50 text-[#e31e24] flex items-center justify-center text-3xl mx-auto mb-4">
+                <i class="uil uil-exclamation-triangle"></i>
+            </div>
+            <h1 class="text-xl font-bold text-slate-800">Doğrulanamayan Belge</h1>
+            <p class="text-xs text-slate-500 mt-2 leading-relaxed">Görüntülemeye çalıştığınız staj kaydı henüz onaylanmamıştır veya aktif değildir. Detaylı bilgi için kurum yetkilileri ile iletişime geçebilirsiniz.</p>
+            <a href="/" class="mt-6 inline-flex px-5 py-2.5 bg-slate-800 hover:bg-slate-900 text-white font-bold rounded-xl text-xs transition-all shadow-md">Anasayfaya Dön</a>
+        </div>
+    </div>
+@endif
+
 @push('styles')
 <script src="https://cdn.tailwindcss.com"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
@@ -254,6 +265,21 @@
         /* Global scale factor for transcript page fonts. Adjust this easily (e.g. 1.0, 1.10, 1.20) */
         --transcript-font-scale: 1.30;
     }
+    .verify-log-content ul {
+        list-style-type: disc !important;
+        padding-left: 18px !important;
+        margin-top: 5px !important;
+        margin-bottom: 5px !important;
+    }
+    .verify-log-content ol {
+        list-style-type: decimal !important;
+        padding-left: 18px !important;
+        margin-top: 5px !important;
+        margin-bottom: 5px !important;
+    }
+    .verify-log-content li {
+        margin-bottom: 3px !important;
+    }
 
     body {
         font-family: 'Inter', sans-serif;

scratch_test.js

@@ -0,0 +1,383 @@
+
+  // Tab Switch Logic
+  document.addEventListener('DOMContentLoaded', function() {
+    const tabButtons = document.querySelectorAll('.tab-btn');
+    const tabPanels = document.querySelectorAll('.tab-panel');
+
+    tabButtons.forEach(button => {
+      button.addEventListener('click', () => {
+        // Deactivate active tab
+        tabButtons.forEach(btn => {
+          btn.classList.remove('active', 'bg-blue-50', 'border-blue-100', 'text-blue-900');
+          btn.classList.add('bg-transparent', 'border-transparent', 'text-slate-600');
+          btn.querySelector('.tab-icon').classList.remove('bg-blue-600', 'text-white');
+          btn.querySelector('.tab-icon').classList.add('bg-slate-50', 'text-slate-500');
+          btn.setAttribute('aria-selected', 'false');
+        });
+
+        // Hide active panels
+        tabPanels.forEach(panel => {
+          panel.classList.add('hidden');
+        });
+
+        // Activate clicked tab
+        button.classList.add('active', 'bg-blue-50', 'border-blue-100', 'text-blue-900');
+        button.classList.remove('bg-transparent', 'border-transparent', 'text-slate-600');
+        button.querySelector('.tab-icon').classList.add('bg-blue-600', 'text-white');
+        button.querySelector('.tab-icon').classList.remove('bg-slate-50', 'text-slate-500');
+        button.setAttribute('aria-selected', 'true');
+
+        // Show targets panel
+        const targetId = button.getAttribute('data-tab-target');
+        const targetPanel = document.getElementById(targetId + '-panel');
+        if (targetPanel) {
+          targetPanel.classList.remove('hidden');
+        }
+      });
+    });
+
+  let quill;
+
+  // Tab Switch Logic
+  document.addEventListener('DOMContentLoaded', function() {
+    // Initialize Quill editor
+    quill = new Quill('#editor-content-quill', {
+      theme: 'snow',
+      modules: {
+        toolbar: [
+          ['bold', 'italic', 'underline', 'strike'],        // toggled buttons
+          [{ 'list': 'ordered'}, { 'list': 'bullet' }],
+          ['clean']                                         // remove formatting button
+        ]
+      }
+    });
+
+    const tabButtons = document.querySelectorAll('.tab-btn');
+    const tabPanels = document.querySelectorAll('.tab-panel');
+
+    tabButtons.forEach(button => {
+      button.addEventListener('click', () => {
+        // Deactivate active tab
+        tabButtons.forEach(btn => {
+          btn.classList.remove('active', 'bg-blue-50', 'border-blue-100', 'text-blue-900');
+          btn.classList.add('bg-transparent', 'border-transparent', 'text-slate-600');
+          btn.querySelector('.tab-icon').classList.remove('bg-blue-600', 'text-white');
+          btn.querySelector('.tab-icon').classList.add('bg-slate-50', 'text-slate-500');
+          btn.setAttribute('aria-selected', 'false');
+        });
+
+        // Hide active panels
+        tabPanels.forEach(panel => {
+          panel.classList.add('hidden');
+        });
+
+        // Activate clicked tab
+        button.classList.add('active', 'bg-blue-50', 'border-blue-100', 'text-blue-900');
+        button.classList.remove('bg-transparent', 'border-transparent', 'text-slate-600');
+        button.querySelector('.tab-icon').classList.add('bg-blue-600', 'text-white');
+        button.querySelector('.tab-icon').classList.remove('bg-slate-50', 'text-slate-500');
+        button.setAttribute('aria-selected', 'true');
+
+        // Show targets panel
+        const targetId = button.getAttribute('data-tab-target');
+        const targetPanel = document.getElementById(targetId + '-panel');
+        if (targetPanel) {
+          targetPanel.classList.remove('hidden');
+        }
+      });
+    });
+
+    // Handle initial state of date logic
+    calculateEndDateFrontend();
+    
+    // Fetch Github commits in memory if repo is set
+    fetchAllCommitsInMemory();
+    
+    // Select first day of the notebook workspace on load
+    selectNotebookDay(0);
+  });
+
+  const githubRepoUrl = "dummy";
+  let allGithubCommits = {};
+  let activeDayIdx = 0;
+
+  function fetchAllCommitsInMemory() {
+    if (!githubRepoUrl) return;
+
+    let repoClean = githubRepoUrl.replace(/https?:\/\/(www\.)?github\.com\//i, '');
+    repoClean = repoClean.replace(/\/$/, '');
+    const parts = repoClean.split('/');
+    if (parts.length < 2) return;
+
+    const owner = parts[0];
+    const repo = parts[1].replace(/\.git$/i, '');
+
+    fetch(`https://api.github.com/repos/${owner}/${repo}/commits?per_page=100`)
+      .then(response => {
+        if (!response.ok) throw new Error('API Error');
+        return response.json();
+      })
+      .then(commits => {
+        if (!Array.isArray(commits)) return;
+        commits.forEach(item => {
+          const dateStr = item.commit.author.date;
+          if (dateStr) {
+            const dateOnly = dateStr.substring(0, 10);
+            if (!allGithubCommits[dateOnly]) {
+              allGithubCommits[dateOnly] = [];
+            }
+            allGithubCommits[dateOnly].push(item);
+          }
+        });
+      })
+      .catch(err => {
+        console.warn('Commits could not be pre-loaded in memory.', err);
+      });
+  }
+
+  function selectNotebookDay(idx) {
+    const oldBtn = document.getElementById(`btn-day-${activeDayIdx}`);
+    if (oldBtn) {
+      oldBtn.classList.remove('border-blue-200', 'bg-blue-50/50');
+      oldBtn.classList.add('border-slate-100', 'bg-white');
+      const oldTitle = oldBtn.querySelector('span.text-xs');
+      if (oldTitle) {
+          oldTitle.classList.remove('text-blue-700');
+          oldTitle.classList.add('text-slate-800');
+      }
+    }
+
+    activeDayIdx = idx;
+    const newBtn = document.getElementById(`btn-day-${idx}`);
+    if (newBtn) {
+      newBtn.classList.add('border-blue-200', 'bg-blue-50/50');
+      newBtn.classList.remove('border-slate-100', 'bg-white');
+      const newTitle = newBtn.querySelector('span.text-xs');
+      if (newTitle) {
+          newTitle.classList.add('text-blue-700');
+          newTitle.classList.remove('text-slate-800');
+      }
+
+      const dayNum = newBtn.getAttribute('data-day-num');
+      const dateVal = newBtn.getAttribute('data-date');
+      const dateFormatted = newBtn.getAttribute('data-formatted-date');
+      const savedContent = newBtn.getAttribute('data-saved-content');
+
+      document.getElementById('editor-day-title').textContent = `${dayNum}. Gün`;
+      document.getElementById('editor-day-date').textContent = dateFormatted;
+      
+      quill.root.innerHTML = savedContent || '';
+      document.getElementById('save-status').textContent = '';
+
+      // Future validation
+      const dateParts = dateVal.split('-');
+      const selectedDate = new Date(dateParts[0], dateParts[1] - 1, dateParts[2]);
+      const today = new Date();
+      today.setHours(0,0,0,0);
+      
+      const isFuture = selectedDate > today;
+      const warningBlock = document.getElementById('future-warning');
+      const saveBtn = document.getElementById('save-btn');
+      const gitBtn = document.querySelector('button[onclick="fillFromGithub()"]');
+
+      if (isFuture) {
+          warningBlock.classList.remove('hidden');
+          quill.enable(false);
+          saveBtn.disabled = true;
+          saveBtn.classList.add('opacity-50', 'cursor-not-allowed');
+          if (gitBtn) {
+              gitBtn.disabled = true;
+              gitBtn.classList.add('opacity-50', 'cursor-not-allowed');
+          }
+      } else {
+          warningBlock.classList.add('hidden');
+          quill.enable(true);
+          saveBtn.disabled = false;
+          saveBtn.classList.remove('opacity-50', 'cursor-not-allowed');
+          if (gitBtn) {
+              gitBtn.disabled = false;
+              gitBtn.classList.remove('opacity-50', 'cursor-not-allowed');
+          }
+      }
+    }
+  }
+
+  function fillFromGithub() {
+    const btn = document.getElementById(`btn-day-${activeDayIdx}`);
+    if (!btn) return;
+
+    const dateVal = btn.getAttribute('data-date');
+    const dayCommits = allGithubCommits[dateVal] || [];
+
+    if (dayCommits.length === 0) {
+      alert("Bu staj gününe ait GitHub commit'i bulunamadı. Lütfen commit attığınızdan ve tarihin doğru olduğundan emin olun.");
+      return;
+    }
+
+    let commitHtml = "<ul>";
+    const sorted = [...dayCommits].reverse();
+    sorted.forEach(c => {
+      const msg = c.commit.message;
+      const sha = c.sha.substring(0, 7);
+      const authorDate = new Date(c.commit.author.date);
+      const time = authorDate.toLocaleTimeString('tr-TR', { hour: '2-digit', minute: '2-digit' });
+      commitHtml += `<li><strong>[${time}]</strong> (<em>${sha}</em>) ${msg}</li>`;
+    });
+    commitHtml += "</ul>";
+
+    const currentHtml = quill.root.innerHTML.trim();
+    if (currentHtml !== "" && currentHtml !== "<p><br></p>") {
+      if (confirm("Mevcut rapor içeriğinizin sonuna bu günün commitlerini eklemek ister misiniz? (Hayır derseniz mevcut içerik silinip commitler yazılır.)")) {
+        quill.root.innerHTML = currentHtml + "<br><br>" + commitHtml;
+      } else {
+        quill.root.innerHTML = commitHtml;
+      }
+    } else {
+      quill.root.innerHTML = commitHtml;
+    }
+  }
+
+  function saveActiveDay() {
+    const btn = document.getElementById(`btn-day-${activeDayIdx}`);
+    if (!btn) return;
+
+    const dayNum = btn.getAttribute('data-day-num');
+    const dateVal = btn.getAttribute('data-date');
+    let contentVal = quill.root.innerHTML;
+    if (contentVal === '<p><br></p>') {
+        contentVal = '';
+    }
+    const statusText = document.getElementById('save-status');
+
+    statusText.textContent = "Kaydediliyor...";
+    statusText.className = "text-xs font-semibold text-slate-400 animate-pulse";
+
+    fetch(""dummy"", {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        "X-CSRF-TOKEN": ""dummy""
+      },
+      body: JSON.stringify({
+        day_number: dayNum,
+        date: dateVal,
+        content: contentVal
+      })
+    })
+    .then(response => response.json())
+    .then(data => {
+      if (data.success) {
+        statusText.textContent = "Başarıyla kaydedildi.";
+        statusText.className = "text-xs font-semibold text-green-600";
+
+        btn.setAttribute('data-saved-content', contentVal);
+
+        const badge = document.getElementById(`badge-day-${activeDayIdx}`);
+        if (badge) {
+          if (contentVal.trim() !== '') {
+            badge.textContent = 'DOLU';
+            badge.className = "inline-flex px-2 py-0.5 rounded-lg text-[9px] font-extrabold uppercase bg-green-50 text-green-700 border border-green-200";
+          } else {
+            badge.textContent = 'BOŞ';
+            badge.className = "inline-flex px-2 py-0.5 rounded-lg text-[9px] font-extrabold uppercase bg-slate-50 text-slate-400 border border-slate-200";
+          }
+        }
+      } else {
+        statusText.textContent = data.message || "Kaydedilemedi.";
+        statusText.className = "text-xs font-semibold text-red-600";
+      }
+    })
+    .catch(err => {
+      console.error(err);
+      statusText.textContent = "Bağlantı hatası oluştu.";
+      statusText.className = "text-xs font-semibold text-red-600";
+    });
+  }
+
+  function openPrintModal() {
+    const modal = document.getElementById('print-modal');
+    const card = document.getElementById('print-modal-card');
+    modal.classList.remove('hidden');
+    setTimeout(() => {
+      card.classList.remove('scale-95', 'opacity-0');
+      card.classList.add('scale-100', 'opacity-100');
+    }, 10);
+  }
+
+  function closePrintModal() {
+    const modal = document.getElementById('print-modal');
+    const card = document.getElementById('print-modal-card');
+    card.classList.remove('scale-100', 'opacity-100');
+    card.classList.add('scale-95', 'opacity-0');
+    setTimeout(() => {
+      modal.classList.add('hidden');
+    }, 300);
+  }
+
+  function handleFileSelected(input) {
+    const fileNameElement = document.getElementById('selected-file-name');
+    const submitBtn = document.getElementById('submit-upload-btn');
+    if (input.files && input.files.length > 0) {
+      const file = input.files[0];
+      const fileSizeMB = file.size / (1024 * 1024);
+      if (fileSizeMB > 50) {
+        alert('Dosya boyutu 50MB\'ı aşamaz.');
+        input.value = '';
+        fileNameElement.textContent = '';
+        submitBtn.disabled = true;
+        submitBtn.classList.add('opacity-50', 'cursor-not-allowed');
+        return;
+      }
+      fileNameElement.textContent = 'Seçilen dosya: ' + file.name + ' (' + fileSizeMB.toFixed(2) + ' MB)';
+      submitBtn.disabled = false;
+      submitBtn.classList.remove('opacity-50', 'cursor-not-allowed');
+    } else {
+      fileNameElement.textContent = '';
+      submitBtn.disabled = true;
+      submitBtn.classList.add('opacity-50', 'cursor-not-allowed');
+    }
+  }
+
+  function calculateEndDateFrontend() {
+    const startDateVal = document.getElementById('internship_start_date').value;
+    const totalDaysVal = document.getElementById('internship_total_days').value;
+    const endDateInput = document.getElementById('internship_end_date');
+    
+    if (!startDateVal || !totalDaysVal || totalDaysVal <= 0) {
+      return;
+    }
+    
+    let date = new Date(startDateVal);
+    let daysToAdd = parseInt(totalDaysVal);
+    let count = 0;
+    let endDate = new Date(startDateVal);
+    
+    while (count < daysToAdd) {
+      const dayOfWeek = date.getDay();
+      if (dayOfWeek === 6 || dayOfWeek === 0) { // 6 = Saturday, 0 = Sunday
+        date.setDate(date.getDate() + 1);
+        continue;
+      }
+      endDate = new Date(date);
+      date.setDate(date.getDate() + 1);
+      count++;
+    }
+    
+    // Format to YYYY-MM-DD
+    const yyyy = endDate.getFullYear();
+    const mm = String(endDate.getMonth() + 1).padStart(2, '0');
+    const dd = String(endDate.getDate()).padStart(2, '0');
+    endDateInput.value = `${yyyy}-${mm}-${dd}`;
+  }
+
+  function copyToClipboard(elementId, btn) {
+    const text = document.getElementById(elementId).textContent;
+    navigator.clipboard.writeText(text).then(() => {
+      const icon = btn.querySelector('i');
+      const originalClass = icon.className;
+      icon.className = 'uil uil-check text-green-500';
+      setTimeout(() => {
+        icon.className = originalClass;
+      }, 2000);
+    });
+  }