Fix/decoding layer

.secrets.baseline

@@ -335,6 +335,161 @@
         "verified_result": null
       }
     ],
+    "apps/web/app/Helpers/__tests__/actual-api-format.test.ts": [
+      {
+        "hashed_secret": "1eb9369bcdb20f6c88138c9427f009b6afe19c7c",
+        "is_verified": false,
+        "line_number": 22,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "655dc5abb6b0ee511e4676b0739bb2077937014a",
+        "is_verified": false,
+        "line_number": 22,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "6eff76dbb551ea7769517f3a7188862f85a7354e",
+        "is_verified": false,
+        "line_number": 79,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "4f043b03a11e8b760986f07490ee76f48c6c7342",
+        "is_verified": false,
+        "line_number": 81,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "618eb19f52dfe817f292f54554346cad3e3a88b3",
+        "is_verified": false,
+        "line_number": 81,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      }
+    ],
+    "apps/web/app/Helpers/__tests__/choice-feedback-decoding.test.ts": [
+      {
+        "hashed_secret": "6eff76dbb551ea7769517f3a7188862f85a7354e",
+        "is_verified": false,
+        "line_number": 234,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      }
+    ],
+    "apps/web/app/Helpers/data-transformer.edge-cases.test.ts": [
+      {
+        "hashed_secret": "9716c4510d038dc8f853fc40dc96f8a2a87bb51c",
+        "is_verified": false,
+        "line_number": 162,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "4f043b03a11e8b760986f07490ee76f48c6c7342",
+        "is_verified": false,
+        "line_number": 165,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "9aa7cde469abc42954177388692fa3c14663338d",
+        "is_verified": false,
+        "line_number": 166,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      }
+    ],
+    "apps/web/app/Helpers/data-transformer.realworld.test.ts": [
+      {
+        "hashed_secret": "c5b49f145071d1dfaa7b852fbac2cc2d452c033d",
+        "is_verified": false,
+        "line_number": 15,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "565d3a24396607e26491162b13a69050b37c7be7",
+        "is_verified": false,
+        "line_number": 17,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "9690ab4554c9150bb66f9019049b7ed18998d6ab",
+        "is_verified": false,
+        "line_number": 22,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "4f043b03a11e8b760986f07490ee76f48c6c7342",
+        "is_verified": false,
+        "line_number": 25,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "9aa7cde469abc42954177388692fa3c14663338d",
+        "is_verified": false,
+        "line_number": 26,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "b7e41a1408b0de53b6a18b0383983df52151bffd",
+        "is_verified": false,
+        "line_number": 60,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "7f8a4c8efb7a9d741a4131e6382406d04920a55c",
+        "is_verified": false,
+        "line_number": 75,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "ef584f952dbcdb807b1f2a5b688a6b2ac7beaf76",
+        "is_verified": false,
+        "line_number": 158,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "fca9f0a000cc0d99a6b89eff22b280d43b3dc23a",
+        "is_verified": false,
+        "line_number": 168,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "ad5a4eb98aace66b683002aa7038bb800f8b0a65",
+        "is_verified": false,
+        "line_number": 174,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "28681ff8a70bc722645c0ebe5c21fbd8a2ee904a",
+        "is_verified": false,
+        "line_number": 183,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      },
+      {
+        "hashed_secret": "dd65cdacb216bbeca512abfb1ecd15d1c53ac7bd",
+        "is_verified": false,
+        "line_number": 431,
+        "type": "Base64 High Entropy String",
+        "verified_result": null
+      }
+    ],
     "apps/web/app/api/markChat/route.ts": [
       {
         "hashed_secret": "3f70a0183ead614880b70bff64fd39c0d9155d62",

apps/api/src/api/assignment/attempt/attempt.service.ts

@@ -10,7 +10,7 @@
 } from "@nestjs/common";
 import {
   Assignment,
   CorrectAnswerVisibility,
   Question,
   QuestionType,
   QuestionVariant,
@@ -21,8 +21,8 @@
 import { JsonValue } from "@prisma/client/runtime/library";
 import { LearnerFileUpload } from "src/api/attempt/common/interfaces/attempt.interface";
 import {
   SuccessPageDataDto,
   SuccessPageQuestionDto,
 } from "src/api/attempt/dto/success-page-data.dto";
 import { LlmFacadeService } from "src/api/llm/llm-facade.service";
 import { PresentationQuestionEvaluateModel } from "src/api/llm/model/presentation.question.evaluate.model";
@@ -2342,15 +2342,25 @@
     learnerResponse: string;
   } {
     const choices = this.parseChoices(question.choices);
+    console.log(
+      `Handling single correct question response for question ID: ${question.id}`,
+    );
     const learnerChoice =
       createQuestionResponseAttemptRequestDto.learnerChoices[0];
-
+    console.log(
+      `Learner choice: ${learnerChoice}, Choices: ${JSON.stringify(choices)}`,
+    );
     const normalizedLearnerChoice = this.normalizeText(learnerChoice);
     const correctChoice = choices.find((choice) => choice.isCorrect);
-
+    console.log(
+      `Correct choice: ${correctChoice ? correctChoice.choice : "None"}`,
+    );
     const selectedChoice = choices.find(
       (choice) => this.normalizeText(choice.choice) === normalizedLearnerChoice,
     );
+    console.log(
+      `Selected choice: ${selectedChoice ? selectedChoice.choice : "None"}`,
+    );
 
     const data = {
       learnerChoice,

apps/api/src/api/attempt/common/strategies/choice-grading.strategy.ts

@@ -154,6 +154,8 @@ export class ChoiceGradingStrategy extends AbstractGradingStrategy<string[]> {
   }> {
     await this.validateResponse(question, requestDto);
 
+    console.log("request dto:", requestDto);
+
     const learnerResponse = await this.extractLearnerResponse(requestDto);
 
     return this.gradeSingleChoice(question, learnerResponse, context);
@@ -170,6 +172,7 @@ export class ChoiceGradingStrategy extends AbstractGradingStrategy<string[]> {
     responseDto: CreateQuestionResponseAttemptResponseDto;
     learnerResponse: string[];
   }> {
+    console.log("learner response:", learnerResponse);
     const choices = this.parseChoices(question.choices);
 
     if (!learnerResponse || learnerResponse.length === 0) {
@@ -187,12 +190,25 @@ export class ChoiceGradingStrategy extends AbstractGradingStrategy<string[]> {
     }
 
     const learnerChoice = learnerResponse[0];
+    console.log("learner response:", learnerResponse);
     const normalizedLearnerChoice = this.normalizeText(learnerChoice);
     const correctChoice = choices.find((choice) => choice.isCorrect);
 
+    console.log("learner choice:", normalizedLearnerChoice);
+    console.log(
+      "all choices:",
+      choices.map((c) => c.choice),
+    );
+
+    console.log(
+      "correct answer:",
+      correctChoice ? correctChoice.choice : "none",
+    );
+
     const selectedChoice = choices.find(
       (choice) => this.normalizeText(choice.choice) === normalizedLearnerChoice,
     );
+    console.log("selected choice:", selectedChoice);
 
     const data = {
       learnerChoice,

apps/api/src/app.module.ts

@@ -13,19 +13,20 @@ import { AppService } from "./app.service";
 import { AdminAuthModule } from "./auth/admin-auth.module";
 import { AuthModule } from "./auth/auth.module";
 import { UserSessionMiddleware } from "./auth/middleware/user.session.middleware";
+import { CommonModule } from "./common/common.module";
 import { DatabaseModule } from "./database/database.module";
 import { HealthModule } from "./health/health.module";
 import { winstonOptions } from "./logger/config";
 import { LoggerMiddleware } from "./logger/logger.middleware";
 import { MessagingModule } from "./messaging/messaging.module";
-import { DataTransformMiddleware } from "./middleware/data-transform.middleware";
 import { routes } from "./routes";
 
 @Module({
   imports: [
     ConfigModule.forRoot(),
     WinstonModule.forRoot(winstonOptions),
     HealthModule,
+    CommonModule,
     ApiModule,
     ScheduledTasksModule,
     RouterModule.register(routes),
@@ -39,7 +40,7 @@ import { routes } from "./routes";
 export class AppModule implements NestModule {
   configure(consumer: MiddlewareConsumer) {
     consumer
-      .apply(DataTransformMiddleware, LoggerMiddleware)
+      .apply(LoggerMiddleware)
       .forRoutes({ path: "*", method: RequestMethod.ALL })
       .apply(UserSessionMiddleware)
       .forRoutes(

apps/api/src/common/common.module.ts

@@ -1,5 +1,5 @@
 import { Module, Global } from "@nestjs/common";
-import { APP_INTERCEPTOR } from "@nestjs/core";
+import { APP_INTERCEPTOR, Reflector } from "@nestjs/core";
 import { DataTransformInterceptor } from "./interceptors/data-transform.interceptor";
 
 /**
@@ -8,6 +8,8 @@ import { DataTransformInterceptor } from "./interceptors/data-transform.intercep
 @Global()
 @Module({
   providers: [
+    Reflector,
+    DataTransformInterceptor,
     {
       provide: APP_INTERCEPTOR,
       useClass: DataTransformInterceptor,