Move I/O provider abstraction to ui-console, add ledger/account/problem DTOs

InputProvider/OutputProvider were api-layer types only ever implemented
by the console UI; relocate them there. Drop the unused
GuessMarketEngine/LocalGuessMarketService pair, flesh out LoadResultDTO
with success/failure variants, and make LocalGuessMarketContext.LoadAsync
report real outcomes instead of an empty placeholder.

2 files changed, 6 insertions, 25 deletions

diff --git a/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java b/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java
deleted file mode 100644
index dafbef6..0000000
--- a/engine/src/main/java/market/guess/engine/LocalGuessMarketService.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package market.guess.engine;
-
-import java.util.concurrent.CompletableFuture;
-import market.guess.api.GuessMarketContext;
-import market.guess.api.GuessMarketEngine;
-import market.guess.api.LoadResultDTO;
-
-public class LocalGuessMarketService implements GuessMarketEngine {
-  private final GuessMarketContext context;
-
-  public LocalGuessMarketService(GuessMarketContext context) {
-    super();
-    this.context = context;
-  }
-
-  @Override
-  public CompletableFuture<LoadResultDTO> loadEvents() {
-    return context.LoadAsync();
-  }
-}
diff --git a/engine/src/main/java/market/guess/engine/provider/LocalGuessMarketContext.java b/engine/src/main/java/market/guess/engine/provider/LocalGuessMarketContext.java
index 628038d..cf0923b 100644
--- a/engine/src/main/java/market/guess/engine/provider/LocalGuessMarketContext.java
+++ b/engine/src/main/java/market/guess/engine/provider/LocalGuessMarketContext.java
@@ -4,30 +4,31 @@ import jakarta.xml.bind.JAXBContext;
 import jakarta.xml.bind.Marshaller;
 import java.io.File;
 import java.util.List;
-import java.util.concurrent.CompletableFuture;
 import market.guess.api.CommissionChargeType;
 import market.guess.api.EventDTO;
 import market.guess.api.EventStatus;
 import market.guess.api.GuessMarketContext;
 import market.guess.api.LoadResultDTO;
+import market.guess.api.ProblemDTO;
 import market.guess.engine.model.GuessMarket;
 
 public class LocalGuessMarketContext implements GuessMarketContext {
   private GuessMarket context;
 
   @Override
-  public CompletableFuture<LoadResultDTO> LoadAsync() {
+  public LoadResultDTO LoadAsync() {
+    var file = new File("test-data/ex-1/multiple.xml");
     try {
-      var file = new File("test-data/ex-1/multiple.xml");
       var ctx = JAXBContext.newInstance(GuessMarket.class);
       var unmarshaller = ctx.createUnmarshaller();
 
       context = (GuessMarket) unmarshaller.unmarshal(file);
-
+      return LoadResultDTO.success(file.getPath(), context.getGMEvents().getGMEvent().size());
     } catch (Exception e) {
       e.printStackTrace();
+      return LoadResultDTO.failure(
+          file.getPath(), List.of(new ProblemDTO("LOAD_FAILED", e.getMessage(), file.getPath())));
     }
-    return CompletableFuture.completedFuture(new LoadResultDTO());
   }
 
   @Override