Feat: AI 면접 완료 후 종합 리포트를 PDF 형태로 생성하고 다운로드할 수 있는 기능 구현

src/InterviewAssistant.ApiService/Endpoints/ReportEndpoint.cs

@@ -0,0 +1,42 @@
+using InterviewAssistant.ApiService.Services;
+using InterviewAssistant.Common.Models;
+using Microsoft.AspNetCore.Mvc;
+
+namespace InterviewAssistant.ApiService.Endpoints;
+
+public static class ReportEndpoint
+{
+    public static IEndpointRouteBuilder MapReportEndpoint(this IEndpointRouteBuilder routeBuilder)
+    {
+        var api = routeBuilder.MapGroup("api/report").WithTags("Report");
+
+        api.MapPost("generate-pdf", GeneratePdfReport)
+           .Accepts<InterviewReport>(contentType: "application/json")
+           .Produces<FileContentResult>(statusCode: StatusCodes.Status200OK, contentType: "application/pdf")
+           .WithName("GeneratePdfReport")
+           .WithOpenApi();
+
+        return routeBuilder;
+    }
+
+    private static IResult GeneratePdfReport(
+        [FromBody] InterviewReport report,
+        IPdfReportService pdfService)
+    {
+        try
+        {
+            var pdfBytes = pdfService.GenerateInterviewReport(report);
+            var fileName = $"면접리포트_{report.CandidateName}_{DateTime.Now:yyyyMMdd}.pdf";
+
+            return Results.File(pdfBytes, "application/pdf", fileName);
+        }
+        catch (Exception ex)
+        {
+            return Results.Problem(
+                title: "PDF 생성 오류",
+                detail: ex.Message,
+                statusCode: StatusCodes.Status500InternalServerError
+            );
+        }
+    }
+}

src/InterviewAssistant.ApiService/InterviewAssistant.ApiService.csproj

@@ -15,6 +15,7 @@
     <PackageReference Include="Microsoft.SemanticKernel.Agents.core" Version="1.*" />
     <PackageReference Include="Microsoft.SemanticKernel.Yaml" Version="1.*" />
     <PackageReference Include="ModelContextProtocol" Version="0.*-*" />
+    <PackageReference Include="QuestPDF" Version="2024.*" />
   </ItemGroup>
 
   <ItemGroup>

src/InterviewAssistant.ApiService/Models/InterviewSession.cs

@@ -0,0 +1,13 @@
+namespace InterviewAssistant.ApiService.Models;
+
+public class InterviewSession
+{
+    public Guid Id { get; set; } = Guid.NewGuid();
+    public Guid ResumeId { get; set; }
+    public Guid JobDescriptionId { get; set; }
+    public DateTime StartedAt { get; set; } = DateTime.UtcNow;
+    public DateTime? CompletedAt { get; set; }
+    public bool IsCompleted { get; set; }
+    public string QuestionsAndAnswers { get; set; } = "[]"; // JSON 형태로 저장
+    public string? FinalFeedback { get; set; }
+}

src/InterviewAssistant.ApiService/Program.cs

@@ -32,6 +32,7 @@
 
 builder.Services.AddScoped<IKernelService, KernelService>();
 builder.Services.AddScoped<IInterviewRepository, InterviewRepository>();
+builder.Services.AddScoped<IPdfReportService, PdfReportService>();
 
 //OpenAPI 설정
 builder.Services.AddOpenApi();
@@ -99,6 +100,9 @@
 // Chat Completion 엔드포인트 매핑
 app.MapChatCompletionEndpoint();
 
+// Report 엔드포인트 매핑
+app.MapReportEndpoint();
+
 // .NET Aspire 헬스체크 및 모니터링 엔드포인트 매핑
 app.MapDefaultEndpoints();
 

src/InterviewAssistant.ApiService/Services/IPdfReportService.cs

@@ -0,0 +1,13 @@
+using InterviewAssistant.Common.Models;
+
+namespace InterviewAssistant.ApiService.Services;
+
+public interface IPdfReportService
+{
+    /// <summary>
+    /// 면접 리포트를 PDF로 생성합니다.
+    /// </summary>
+    /// <param name="report">면접 리포트 데이터</param>
+    /// <returns>PDF 바이트 배열</returns>
+    byte[] GenerateInterviewReport(InterviewReport report);
+}