partial fix for teacher class progress

app/Http/Controllers/Api/ClassProgress/ClassProgressController.php

@@ -59,15 +59,23 @@ class ClassProgressController extends BaseApiController
             return $auth;
         }
 
-        $schoolYear = (string) (Configuration::getConfig('school_year') ?? '');
-        $semester = (string) (Configuration::getConfig('semester') ?? '');
+        $schoolYear = trim((string) $request->query('school_year', Configuration::getConfig('school_year') ?? ''));
+        $semester = trim((string) $request->query('semester', Configuration::getConfig('semester') ?? ''));
         $assignments = $this->queryService->teacherAssignments($auth, $schoolYear, $semester);
 
         $requestedClassId = (int) ($request->validated('class_id') ?? 0);
-        $activeClassId = $requestedClassId > 0 ? $requestedClassId : (int) ($assignments[0]['class_id'] ?? 0);
+        $requestedClassSectionId = (int) $request->query('class_section_id', 0);
+        $requestedAssignment = $requestedClassSectionId > 0
+            ? collect($assignments)->first(
+                fn (array $assignment) => (int) ($assignment['class_section_id'] ?? 0) === $requestedClassSectionId
+            )
+            : null;
+        $activeClassId = $requestedClassId > 0
+            ? $requestedClassId
+            : (int) (($requestedAssignment['class_id'] ?? null) ?: ($assignments[0]['class_id'] ?? 0));
         $activeAssignment = collect($assignments)->first(
             fn (array $assignment) => (int) ($assignment['class_id'] ?? 0) === $activeClassId
-        ) ?? ($assignments[0] ?? []);
+        ) ?? $requestedAssignment ?? ($assignments[0] ?? []);
         $sundayCount = (int) ($request->validated('sunday_count') ?? 12);
         $payload = $this->buildMetaPayload($activeClassId > 0 ? $activeClassId : null, $sundayCount, $schoolYear, $semester);
         $payload['classes'] = $assignments;
@@ -294,6 +302,7 @@ class ClassProgressController extends BaseApiController
             'status_options' => $this->metaService->statusOptions(),
             'sunday_options' => $this->metaService->sundayOptionsAlignedWithCi($sundayCount),
             'curriculum' => $this->metaService->curriculumOptions($classId, $meta['school_year'] ?? null),
+            'unit_options' => $this->metaService->unitOptions($classId, $meta['school_year'] ?? null),
             'meta' => $meta,
         ];
     }

app/Models/SubjectCurriculum.php

@@ -10,7 +10,7 @@ class SubjectCurriculum extends BaseModel
 {
     protected $table = 'subject_curriculum_items';
 
-    protected $fillable = ['class_id', 'subject', 'unit_number', 'unit_title', 'chapter_name', 'created_at', 'updated_at'];
+    protected $fillable = ['class_id', 'school_year', 'subject', 'unit_number', 'unit_title', 'chapter_name', 'created_at', 'updated_at'];
 
     public $timestamps = true;
 
@@ -54,7 +54,11 @@ class SubjectCurriculum extends BaseModel
             return $q;
         }
 
-        return $q->where('school_year', $schoolYear);
+        return $q->where(function (Builder $yearQuery) use ($schoolYear) {
+            $yearQuery->where('school_year', $schoolYear)
+                ->orWhereNull('school_year')
+                ->orWhere('school_year', '');
+        });
     }
 
     public function scopeOrdered(Builder $q): Builder

app/Services/ClassProgress/ClassProgressMetaService.php

@@ -151,4 +151,51 @@ class ClassProgressMetaService
 
         return $options;
     }
+
+    public function unitOptions(?int $classId, ?string $schoolYear = null): array
+    {
+        $curriculum = $this->curriculumOptions($classId, $schoolYear);
+        $units = [];
+
+        foreach ($curriculum as $slug => $rows) {
+            $seen = [];
+            $units[$slug] = [];
+
+            foreach ($rows as $row) {
+                $unitNumber = $row->unit_number ?? null;
+                $unitTitle = trim((string) ($row->unit_title ?? ''));
+
+                if ($unitNumber === null && $unitTitle === '') {
+                    continue;
+                }
+
+                $key = ((string) $unitNumber).'|'.$unitTitle;
+                if (isset($seen[$key])) {
+                    continue;
+                }
+
+                $seen[$key] = true;
+                $units[$slug][] = [
+                    'unit_number' => $unitNumber !== null ? (int) $unitNumber : null,
+                    'unit_title' => $unitTitle,
+                    'label' => $this->formatUnitLabel($unitNumber !== null ? (int) $unitNumber : null, $unitTitle),
+                ];
+            }
+        }
+
+        return $units;
+    }
+
+    private function formatUnitLabel(?int $unitNumber, string $unitTitle): string
+    {
+        if ($unitNumber !== null && $unitTitle !== '') {
+            return 'Unit '.$unitNumber.' - '.$unitTitle;
+        }
+
+        if ($unitNumber !== null) {
+            return 'Unit '.$unitNumber;
+        }
+
+        return $unitTitle;
+    }
 }