refactor(cooperation): change relation to task assignment from has many to has one and adjust related logic

COOPERATION_MODULE.md

@@ -153,7 +153,7 @@ ### Cooperation
 - `partnerMedia()`: BelongsToMany - Media yang terlibat dalam kerjasama
 - `cooperationMedia()`: HasMany - Pivot records dengan status
 - `cooperationProposals()`: HasMany - Proposal yang diupload media
-- `taskAssignments()`: HasMany - Task yang diberikan ke media
+- `taskAssignment()`: HasOne - Task yang diberikan ke media
 
 ### CooperationMedia (Pivot)
 **Location**: `app/Models/CooperationMedia.php`

app/Filament/Resources/Manage/Cooperations/Actions/Cooperation/CreateTaskAssignmentAction.php

@@ -63,7 +63,7 @@ protected function setUp(): void
                 ];
             })
             ->action(function (array $data, Cooperation $record): void {
-                $taskAssignment = $record->taskAssignments()->create([
+                $taskAssignment = $record->taskAssignment()->create([
                     'start_date' => $data['start_date'],
                     'end_date' => $data['end_date'],
                     'task_description' => $data['task_description'],
@@ -107,7 +107,7 @@ protected function setUp(): void
                 $user = Auth::user();
 
                 return $user && ! $user->hasRole('Perusahaan')
-                    && ! $record->taskAssignments()->exists()
+                    && ! $record->taskAssignment()->exists()
                     && $record->status === CooperationStatus::ASSIGNMENT;
             })
             ->modalWidth(Width::Large);

app/Filament/Resources/Manage/Cooperations/Pages/ViewCooperation.php

@@ -179,7 +179,7 @@ protected function getProposalReviewDate($record)
 
     protected function getTaskStatus($record): string
     {
-        if ($record->taskAssignments->isNotEmpty()) {
+        if ($record->taskAssignment()->exists()) {
             return 'completed';
         }
 
@@ -188,21 +188,19 @@ protected function getTaskStatus($record): string
 
     protected function getTaskDate($record)
     {
-        $latestTask = $record->taskAssignments->sortByDesc('created_at')->first();
-
-        return $latestTask?->created_at?->format('d/m/Y H:i');
+        return $record->taskAssignment?->created_at?->format('d/m/Y H:i');
     }
 
     protected function getReportStatus($record): string
     {
-        $tasks = $record->taskAssignments;
+        $task = $record->taskAssignment;
 
-        if ($tasks->isEmpty()) {
+        if (! $task) {
             return 'pending';
         }
 
-        $totalReports = $tasks->sum('report_amount');
-        $completedReports = $tasks->flatMap->reports->count();
+        $totalReports = $task->report_amount;
+        $completedReports = $task->reports->count();
 
         if ($completedReports >= $totalReports && $totalReports > 0) {
             return 'completed';
@@ -217,8 +215,7 @@ protected function getReportStatus($record): string
 
     protected function getReportDate($record)
     {
-        $latestReport = $record->taskAssignments
-            ->flatMap->reports
+        $latestReport = $record->taskAssignment?->reports
             ->sortByDesc('created_at')
             ->first();
 
@@ -251,14 +248,17 @@ protected function canMarkAsCompleted(): bool
     {
         $record = $this->getRecord();
 
-        // Check if all tasks have required number of reports
-        foreach ($record->taskAssignments as $task) {
-            $reportCount = $task->reports()->count();
-            if ($reportCount < $task->report_amount) {
-                return false;
-            }
+        $task = $record->taskAssignment;
+
+        if (! $task) {
+            return false;
         }
 
-        return $record->taskAssignments->isNotEmpty();
+        $reportCount = $task->reports()->count();
+        if ($reportCount < $task->report_amount) {
+            return false;
+        }
+
+        return true;
     }
 }

app/Filament/Resources/Manage/Cooperations/RelationManagers/ReportRelationManager.php

@@ -123,7 +123,7 @@ public function table(Table $table): Table
                     ->modalWidth(Width::Large)
                     ->modalHeading('Buat Laporan')
                     ->mutateDataUsing(function (array $data): array {
-                        $data['task_assignment_id'] = $this->getOwnerRecord()->taskAssignments()->first()?->id;
+                        $data['task_assignment_id'] = $this->getOwnerRecord()->taskAssignment?->id;
 
                         return $data;
                     })
@@ -158,7 +158,7 @@ public function table(Table $table): Table
                             return false;
                         }
 
-                        $taskAssignment = $this->getOwnerRecord()->taskAssignments()->first();
+                        $taskAssignment = $this->getOwnerRecord()->taskAssignment;
 
                         if (! $taskAssignment) {
                             return false;

app/Filament/Resources/Manage/Cooperations/RelationManagers/TaskAssignmentRelationManager.php

@@ -20,7 +20,7 @@
 
 class TaskAssignmentRelationManager extends RelationManager
 {
-    protected static string $relationship = 'taskAssignments';
+    protected static string $relationship = 'taskAssignment';
 
     protected static ?string $title = 'Penugasan';
 
@@ -107,7 +107,8 @@ public function table(Table $table): Table
                     ->visible(function (): bool {
                         $cooperation = $this->getOwnerRecord();
 
-                        return $cooperation->proposals()->accepted()->exists();
+                        return $cooperation->proposals()->accepted()->exists()
+                            && ! $cooperation->taskAssignment()->exists();
                     })
                     ->successNotification(
                         Notification::make()

app/Models/Cooperation.php

@@ -10,6 +10,7 @@
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\Relations\HasManyThrough;
+use Illuminate\Database\Eloquent\Relations\HasOne;
 use Illuminate\Database\Eloquent\SoftDeletes;
 use Spatie\MediaLibrary\HasMedia;
 use Spatie\MediaLibrary\InteractsWithMedia;
@@ -68,9 +69,9 @@ public function proposals(): HasMany
         return $this->hasMany(CooperationProposal::class);
     }
 
-    public function taskAssignments(): HasMany
+    public function taskAssignment(): HasOne
     {
-        return $this->hasMany(TaskAssignment::class);
+        return $this->hasOne(TaskAssignment::class);
     }
 
     public function cooperationMedia(): HasMany