CMAKE_MINIMUM_REQUIRED(VERSION 3.30 FATAL_ERROR)
PROJECT(HOOLANG)

SET (CMAKE_CXX_STANDARD 17)
SET (ANTLR_JAR /usr/local/lib/antlr4-4.13.2-complete.jar)
SET (ANTLR_INCLUDE_DIR /usr/local/include/antlr4-runtime/)
SET (ANTLR_GENERATED_DIR "${CMAKE_BINARY_DIR}/antlr4/generated")
SET (GRAMMAR_FILE "${CMAKE_SOURCE_DIR}/Hoo.g4")
SET (LLVM_LIBRARY_DIRS "/usr/lib/llvm-19/lib")
# SET (LLVM_LIBS
#         ${LLVM_LIBRARY_DIRS}/libLLVMCore.a
#         ${LLVM_LIBRARY_DIRS}/libLLVMIRReader.a
#         ${LLVM_LIBRARY_DIRS}/libLLVMSupport.a
#     )

FIND_PACKAGE(LLVM REQUIRED CONFIG)

MESSAGE (STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
MESSAGE (${LLVM_DEFINITIONS})

LLVM_MAP_COMPONENTS_TO_LIBNAMES(llvm_libs support core irreader)
MESSAGE (${llvm_libs})

# ADD_CUSTOM_COMMAND(OUTPUT ${ANTLR_GENERATED_DIR}/HooBaseVisitor.cpp
#     COMMAND java -jar ${ANTLR_JAR} -no-listener -visitor -o ${ANTLR_GENERATED_DIR} -Dlanguage=Cpp ${GRAMMAR_FILE}
#     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
#     DEPENDS ${GRAMMAR_FILE})

EXECUTE_PROCESS(
    COMMAND java -jar ${ANTLR_JAR} -no-listener -visitor -o ${ANTLR_GENERATED_DIR} -Dlanguage=Cpp ${GRAMMAR_FILE}
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_FILE ${ANTLR_GENERATED_DIR}/HooBaseVisitor.cpp
)

ADD_CUSTOM_TARGET(HooBaseVisitor ALL DEPENDS ${ANTLR_GENERATED_DIR}/HooBaseVisitor.cpp)

INCLUDE_DIRECTORIES(${ANTLR_GENERATED_DIR} ${ANTLR_INCLUDE_DIR})

ADD_EXECUTABLE(hoo
    Hoo.cpp Visitor.cpp
    ${ANTLR_GENERATED_DIR}/HooBaseVisitor.cpp
    ${ANTLR_GENERATED_DIR}/HooVisitor.cpp
    ${ANTLR_GENERATED_DIR}/HooLexer.cpp
    ${ANTLR_GENERATED_DIR}/HooParser.cpp)

ADD_DEPENDENCIES(hoo HooBaseVisitor)

TARGET_LINK_LIBRARIES(hoo antlr4-runtime ${LLVM_LIBS})