add completions methods (not final)

SurveyBackend/SurveyBackend.API/Controllers/CompletionController.cs

@@ -26,14 +26,18 @@ public class CompletionController : ControllerBase
     [Authorize]
     public async Task<IActionResult> GetCompletionsAsync(int surveyId)
     {
-        return NotFound();
+        var models = await _completionService.GetCompletionsBySurveyIdAsync(surveyId);
+        var result = models.Select(CompletionMapper.ModelToOutputDto);
+        return Ok(result);
     }
 
     [HttpGet("{id:int}")]
     [Authorize]
     public async Task<IActionResult> GetCompletionAsync(int id)
     {
-        return NotFound();
+        var model = await _completionService.GetCompletionByIdAsync(id);
+        var result = CompletionMapper.ModelToOutputDto(model);
+        return Ok(result);
     }
 
     [HttpPost]

SurveyBackend/SurveyBackend.API/DTOs/Completion/CompletionOutputDto.cs

@@ -4,7 +4,8 @@ namespace SurveyBackend.DTOs.Completion;
 
 public class CompletionOutputDto
 {
+    public int Id { get; set; }
+    public int SurveyId { get; set; }
     public int? CompletedBy { get; set; }
     public DateTime FinishedAt { get; set; }
-    public List<AnswerOutputDto> Answers { get; set; }
 }

SurveyBackend/SurveyBackend.API/Mappers/CompletionMapper.cs

@@ -14,8 +14,9 @@ public static class CompletionMapper
 
     public static CompletionOutputDto ModelToOutputDto(Completion model) => new CompletionOutputDto
     {
+        Id = model.Id,
+        SurveyId = model.SurveyId,
         CompletedBy = model.CompletedBy,
-        FinishedAt = model.FinishedAt,
-        Answers = model.Answers.Select(AnswerMapper.ModelToOutputDto).ToList(),
+        FinishedAt = model.FinishedAt
     };
 }