Move engine contracts to api module, add I/O provider abstraction and PicoContainer wiring

Relocates GuessMarketEngine/GuessMarketContext into market.guess.api so
engine and ui-console depend on a shared contract instead of engine
internals, and makes context loading async (CompletableFuture). Adds
InputProvider/OutputProvider interfaces with console implementations,
wires the console app's Menu through a PicoContainer, and adds the
generated model classes plus vendored picocontainer jar needed to build it.

6 files changed, 121 insertions, 1 deletions

diff --git a/ui-console/src/main/java/market/guess/ui/console/App.java b/ui-console/src/main/java/market/guess/ui/console/App.java
index 06be86d..5158478 100644
--- a/ui-console/src/main/java/market/guess/ui/console/App.java
+++ b/ui-console/src/main/java/market/guess/ui/console/App.java
@@ -1,7 +1,31 @@
 package market.guess.ui.console;
 
+import org.picocontainer.DefaultPicoContainer;
+import org.picocontainer.behaviors.Caching;
+
 public class App {
   public static void main() {
-    IO.println("Hello World");
+    var pico = new DefaultPicoContainer(new Caching());
+
+    pico.addComponent(ConsoleInputProviderFactory.class);
+    pico.addComponent(ConsoleOutputProviderFactory.class);
+    pico.addComponent(Menu.class);
+
+    pico.start();
+    // var context = new LocalGuessMarketContext();
+    // var factory = new ConsoleInputProviderFactory();
+    // var oFactory = new ConsoleOutputProviderFactory();
+    //
+    // context.LoadAsync();
+    // printMenu(oFactory.create());
+    //
+    // try (var provider = factory.create()) {
+    //   var input = provider.nextInt();
+    //   while (input != 0) {
+    //     input = provider.nextInt();
+    //   }
+    // } catch (Exception ex) {
+    //   ex.printStackTrace();
+    //
   }
 }
diff --git a/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProvider.java b/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProvider.java
new file mode 100644
index 0000000..71de3be
--- /dev/null
+++ b/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProvider.java
@@ -0,0 +1,22 @@
+package market.guess.ui.console;
+
+import java.util.Scanner;
+import market.guess.InputProvider;
+
+public class ConsoleInputProvider implements InputProvider {
+  private final Scanner scanner = new Scanner(System.in);
+
+  @Override
+  public int nextInt() {
+    while (!scanner.hasNextInt()) {
+      scanner.next();
+    }
+
+    return scanner.nextInt();
+  }
+
+  @Override
+  public void close() throws Exception {
+    scanner.close();
+  }
+}
diff --git a/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProviderFactory.java b/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProviderFactory.java
new file mode 100644
index 0000000..d122549
--- /dev/null
+++ b/ui-console/src/main/java/market/guess/ui/console/ConsoleInputProviderFactory.java
@@ -0,0 +1,12 @@
+package market.guess.ui.console;
+
+import market.guess.InputProvider;
+import market.guess.InputProviderFactory;
+
+public class ConsoleInputProviderFactory implements InputProviderFactory {
+
+  @Override
+  public InputProvider create() {
+    return new ConsoleInputProvider();
+  }
+}
diff --git a/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProvider.java b/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProvider.java
new file mode 100644
index 0000000..eb9f31b
--- /dev/null
+++ b/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProvider.java
@@ -0,0 +1,16 @@
+package market.guess.ui.console;
+
+import market.guess.OutputProvider;
+
+public class ConsoleOutputProvider implements OutputProvider {
+
+  @Override
+  public void print(Object object) {
+    IO.print(object);
+  }
+
+  @Override
+  public void println(Object object) {
+    IO.println(object);
+  }
+}
diff --git a/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProviderFactory.java b/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProviderFactory.java
new file mode 100644
index 0000000..6db91fc
--- /dev/null
+++ b/ui-console/src/main/java/market/guess/ui/console/ConsoleOutputProviderFactory.java
@@ -0,0 +1,12 @@
+package market.guess.ui.console;
+
+import market.guess.OutputProvider;
+import market.guess.OutputProviderFactory;
+
+public class ConsoleOutputProviderFactory implements OutputProviderFactory {
+
+  @Override
+  public OutputProvider create() {
+    return new ConsoleOutputProvider();
+  }
+}
diff --git a/ui-console/src/main/java/market/guess/ui/console/Menu.java b/ui-console/src/main/java/market/guess/ui/console/Menu.java
new file mode 100644
index 0000000..a5217a4
--- /dev/null
+++ b/ui-console/src/main/java/market/guess/ui/console/Menu.java
@@ -0,0 +1,34 @@
+package market.guess.ui.console;
+
+import market.guess.OutputProvider;
+import market.guess.OutputProviderFactory;
+import org.picocontainer.Startable;
+
+public class Menu implements Startable {
+  private final OutputProvider outputProvider;
+
+  public Menu(OutputProviderFactory factory) {
+    this.outputProvider = factory.create();
+  }
+
+  @Override
+  public void start() {
+    printMenu(outputProvider);
+  }
+
+  @Override
+  public void stop() {
+    // TODO Auto-generated method stub
+    throw new UnsupportedOperationException("Unimplemented method 'stop'");
+  }
+
+  private static void printMenu(OutputProvider provider) {
+    provider.println("[1] Load Marketplace");
+    provider.println("[2] Save Marketplace");
+    provider.println("[3] Show All Events");
+    provider.println("[4] Event Info");
+    provider.println("[5] Participate In Event");
+    provider.println("[6] Close Event");
+    provider.println("[7] Exit");
+  }
+}