#!/bin/bash

# MAC OS 만 실행
# if [[ "$(uname -s)" != "Darwin" ]]; then
#   echo "This script runs on MAC OS only."
#   echo "Current OS: $(uname -s)"
#   exit 1
# fi

# ----------------------------------------------------------------------
# 기존 빌드 폴더 삭제 및 새로운 빌드 시작
# ----------------------------------------------------------------------
echo "Cleaning up old build artifacts..."
rm -rf WebContent/WEB-INF/classes/*

echo "Building Java application for development..."

# 필요한 디렉토리 생성
mkdir -p WebContent/WEB-INF/classes
mkdir -p WebContent/WEB-INF/lib # lib 폴더 존재 확인

# ----------------------------------------------------------------------
# Servlet API JAR 파일 존재 여부 확인 (단순화된 방식)
# ----------------------------------------------------------------------
SERVLET_API_JAR_PRIMARY_PATH="WebContent/WEB-INF/lib/javax.servlet-api-4.0.1.jar"
SERVLET_API_JAR_ALTERNATIVE_PATH="WebContent/WEB-INF/lib/servlet-api.jar"

if [ ! -f "$SERVLET_API_JAR_PRIMARY_PATH" ] && [ ! -f "$SERVLET_API_JAR_ALTERNATIVE_PATH" ]; then
    echo "---------------------------------------------------------------------------------"
    echo "ERROR: Servlet API JAR (javax.servlet-api-4.0.1.jar or servlet-api.jar)"
    echo "       not found in WebContent/WEB-INF/lib/"
    echo ""
    echo "Please add the appropriate Servlet API JAR for your project."
    echo "You can typically find this JAR in a Tomcat distribution's 'lib' folder,"
    echo "or download it from a trusted source like Maven Central Repository."
    echo ""
    echo "Build cannot proceed without it."
    echo "---------------------------------------------------------------------------------"
    exit 1
else
    if [ -f "$SERVLET_API_JAR_PRIMARY_PATH" ]; then
        echo "DEBUG: Confirmed Servlet API JAR is present at $SERVLET_API_JAR_PRIMARY_PATH"
    elif [ -f "$SERVLET_API_JAR_ALTERNATIVE_PATH" ]; then
        echo "DEBUG: Confirmed Servlet API JAR is present at $SERVLET_API_JAR_ALTERNATIVE_PATH"
    fi
fi
# ----------------------------------------------------------------------

# 클래스패스 설정 (단순화된 방식)
EFFECTIVE_CLASSPATH="src:WebContent/WEB-INF/lib/*"
echo "DEBUG: Effective classpath for javac: $EFFECTIVE_CLASSPATH"

# src 폴더 내의 모든 .java 파일 컴파일
echo "Compiling Java files for development..."

find src -name "*.java" -print0 | xargs -0 javac -encoding UTF-8 -source 1.7 -target 1.7 -d WebContent/WEB-INF/classes -cp "$EFFECTIVE_CLASSPATH"
if [ $? -ne 0 ]; then
  echo "Java compilation failed. Exiting script."
  exit 1
fi

echo "Java compilation successful."
# ----------------------------------------------------------------------

# src 폴더 내의 리소스 파일(.xml, .properties 등)을 classes 폴더로 복사 (macOS 호환 방식)
echo "Copying resource files for development..."
find src -type f \( -name "*.xml" -o -name "*.properties" \) | while read -r filepath; do
    # 'src/' 접두사를 제거하여 상대 경로 생성
    relative_path="${filepath#src/}"
    target_file="WebContent/WEB-INF/classes/$relative_path"
    
    # 대상 디렉토리 생성
    mkdir -p "$(dirname "$target_file")" || { echo "Error: Failed to create directory $(dirname "$target_file")"; exit 1; }
    
    # 파일 복사
    cp "$filepath" "$target_file" || { echo "Error: Failed to copy $filepath to $target_file"; exit 1; }
done

echo "Java application build complete for development."
echo "Build process finished successfully!"