@echo off
setlocal enabledelayedexpansion

echo ===============================================
echo    Java Application Build for Windows
echo ===============================================
echo.

echo [1] Checking Java environment...
java -version >nul 2>&1
if errorlevel 1 (
    echo ERROR: Java not found in PATH
    echo Please install Java and add to PATH
    exit /b 1
)

javac -version >nul 2>&1
if errorlevel 1 (
    echo ERROR: Java compiler not found
    echo Please install JDK
    exit /b 1
)
echo Java environment OK

echo [2] Cleaning previous build...
if exist "WebContent\WEB-INF\classes" rmdir /s /q "WebContent\WEB-INF\classes"
echo Previous build cleaned

echo [3] Creating directories...
if not exist "WebContent\WEB-INF\classes" mkdir "WebContent\WEB-INF\classes"
if not exist "WebContent\WEB-INF\lib" mkdir "WebContent\WEB-INF\lib"
if not exist "logs" mkdir "logs"
echo Directories created

echo [4] Checking libraries...
set SERVLET_JAR1=WebContent\WEB-INF\lib\javax.servlet-api-4.0.1.jar
set SERVLET_JAR2=WebContent\WEB-INF\lib\servlet-api.jar

if not exist "%SERVLET_JAR1%" if not exist "%SERVLET_JAR2%" (
    echo ERROR: Servlet API JAR not found
    echo Need: %SERVLET_JAR1% or %SERVLET_JAR2%
    exit /b 1
)
echo Libraries OK

echo [5] Setting classpath...
set CLASSPATH=src;WebContent\WEB-INF\lib\*
echo Classpath: %CLASSPATH%

echo [6] Finding Java files...
if exist java_sources.tmp del java_sources.tmp
set java_count=0
for /r src %%f in (*.java) do (
    echo %%f >> java_sources.tmp
    set /a java_count+=1
)

if %java_count% equ 0 (
    echo WARNING: No Java files found
) else (
    echo Found %java_count% Java files
)

echo [7] Compiling Java files...
if exist java_sources.tmp (
    javac -encoding UTF-8 -source 1.7 -target 1.7 -d WebContent\WEB-INF\classes -cp "%CLASSPATH%" @java_sources.tmp
    if errorlevel 1 (
        echo ERROR: Compilation failed
        del java_sources.tmp
        exit /b 1
    )
    del java_sources.tmp
    echo Compilation completed
)

echo [8] Copying resources...
set resource_count=0
for /r src %%f in (*.xml *.properties *.sql) do (
    set source_file=%%f
    set relative_path=!source_file:%CD%\src\=!
    set target_file=WebContent\WEB-INF\classes\!relative_path!
    
    for %%d in ("!target_file!") do (
        if not exist "%%~dpd" mkdir "%%~dpd" 2>nul
    )
    
    copy "!source_file!" "!target_file!" >nul 2>&1
    if not errorlevel 1 set /a resource_count+=1
)
echo Copied %resource_count% resource files

echo.
echo ===============================================
echo Build completed successfully!
echo ===============================================
echo Classes: WebContent\WEB-INF\classes\
echo Libraries: WebContent\WEB-INF\lib\
echo Logs: logs\
echo.

endlocal