cleaned/

App/Helpers/Helper.php

@@ -0,0 +1,8 @@
+<?php
+
+function response_json(int $status,string $message){
+    return response()->json([
+        'status'=>$status,
+        'message'=>$message
+    ]);
+}

App/Http/Controllers/VoiceController.php

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+public function voice(VoiceRequest $request,Question $question){    
+
+    return (new VoteService)->validateOrUpdateOrCreate($request->validated(),$question);
+
+}

App/Http/Providers/AppServiceProvider.php

@@ -0,0 +1,9 @@
+
+
+
+
+//
+
+require '../../Helpers/Helper.php';
+
+//

App/Http/Requests/VoiceRequest.php

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+$question = Question::find(request['question_id']);
+request('auth_id') = auth()->user()->id;
+request('question_user_id') = $question->user_id;
+
+return [
+    'question_id'=>'required|int|exists:questions,id',
+    'value'=>'required|boolean',
+    'auth_id'=>'different:question_user_id'
+];
+
+
+
+public function messages(){
+    return [
+        'auth_id.different' => response_json(500,'The user is not allowed to vote to your question')
+    ];
+}

App/Model/Vote.php

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+public function scopeFindQuestion($builder,int $question_id){
+    return $builder->where([
+            ['user_id','=',auth()->id()],
+            ['question_id','=',$question_id
+    ]);
+}

App/Observers/VoiceObserver.php

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+public function creating(Voice $voice){
+    $voice['user_id'] = auth()->id();
+}

App/Services/VoteService.php

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+<?php
+
+
+namespace App\Services;
+
+
+class VoteServive
+{
+    // check if user voted returns error or if allowed to vote updates the vote or creates one
+    public function validateOrUpdateOrCreate($request,$question)
+    {
+        $validation = $this->validate($request);
+
+        if ( $validation['needs update'] ) {
+            return $this->update($validation['needs update'],$request['value']);
+        }elseif ($validation['error']) {
+            return $validation['error'];
+        }
+
+        return $this->create($question,$request['value']);
+    }
+
+    public function update($voice,string $value)
+    {
+        $voice->update([
+            'value'=>$value
+        ]);
+
+        return response_json(201,'update your voice');
+    }
+
+    public function create($question,$value)
+    {
+        $question->voice()->create([
+            'value'=>$value
+        ]);
+
+        return response_json(200,'Voting completed successfully');
+    }
+
+    public function validate($request)
+    {
+        $voice=Voice::findQuestion($request['question_id'])->first();
+
+        if ( !is_null($voice)&&$voice->value!==$request['value'] ) {
+            return ['needs update'=>$voice];
+
+        }elseif( is_null($voice)&&$voice->value==$request['value'] ){
+            return [
+                'error'=>response_json(500,'The user is not allowed to vote more than once')
+            ];
+        }
+    }
+}