1 files changed, 56 insertions, 0 deletions

diff --git a/build.bat b/build.bat
new file mode 100644
index 0000000..e1f3d72
--- /dev/null
+++ b/build.bat
@@ -0,0 +1,56 @@
+@echo off
+setlocal enabledelayedexpansion
+
+echo === 1. Cleaning Workspace ===
+if exist bin rmdir /s /q bin
+if exist bin-test rmdir /s /q bin-test
+if exist fat-stage rmdir /s /q fat-stage
+if exist app.jar del app.jar
+mkdir bin
+mkdir bin-test
+mkdir fat-stage
+
+echo === 2. Compiling Production Code ===
+javac -d bin -cp "lib/*" src/com/example/App.java
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+echo === 3. Compiling Test Code ===
+javac -d bin-test -cp "bin;lib/*" test/com/example/AppTest.java
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+echo === 4. Running Automated Tests ===
+set "JUNIT_JAR="
+for %%f in (lib\junit-platform-console-standalone-*.jar) do set "JUNIT_JAR=%%f"
+if not defined JUNIT_JAR (echo JUnit jar missing. & exit /b 1)
+
+java -jar "!JUNIT_JAR!" --classpath "bin;bin-test;lib/*" --scan-class-path
+if %errorlevel% neq 0 (
+    echo ❌ Tests failed! Aborting build package.
+    exit /b %errorlevel%
+)
+echo ✅ Tests passed successfully!
+
+echo === 5. Extracting Dependencies for Fat JAR ===
+cd fat-stage
+for %%j in (..\lib\*.jar) do (
+    echo %%j | findstr /i "junit-platform-console-standalone" >nul
+    if errorlevel 1 (
+        echo Extracting: %%~nxj
+        jar -xf "%%j"
+    )
+)
+if exist META-INF rmdir /s /q META-INF
+cd ..
+
+echo === 6. Merging Assets into Fat JAR ===
+xcopy /e /q /y bin\* fat-stage\
+jar cfm app.jar manifest.txt -C fat-stage/ .
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+rmdir /s /q fat-stage
+echo ======================================
+echo 🎉 Fat JAR Created! Run it anywhere using:
+echo java -jar app.jar
+echo ======================================
+pause
+