cmake_minimum_required(VERSION 3.29.6)
cmake_policy(SET CMP0074 NEW)

project(ISP CXX)

# Add Macro to get all subdir
MACRO(SUBDIRLIST result curdir)
  FILE(GLOB children RELATIVE ${curdir} ${curdir}/*)
  SET(dirlist ${curdir})
  FOREACH(child ${children})
    IF(IS_DIRECTORY ${curdir}/${child})
      LIST(APPEND dirlist ${curdir}/${child})
    ENDIF()
  ENDFOREACH()
  SET(${result} ${dirlist})
ENDMACRO()

# Set C++ Standard
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED true)

# Find Verilator
find_package(verilator HINTS $ENV{VERILATOR_ROOT} ${VERILATOR_ROOT})
if(NOT verilator_FOUND)
  message(
        FATAL_ERROR
        "Verilator was not found. Either install it, or set the VERILATOR_ROOT environment variable"
    )
endif()

# SystemC dependencies
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

# Find SystemC using SystemC's CMake integration
find_package(SystemCLanguage QUIET)

# Find Spdlog
if(NOT TARGET spdlog)
  # Stand-alone build
  find_package(spdlog REQUIRED)
endif()

# Find zlib
if(NOT TARGET ZLIB)
  find_package(ZLIB REQUIRED)
endif()

# Create software image process library
# file(GLOB_RECURSE IMG_SRC ${PROJECT_SOURCE_DIR}/src/img_process/*.cpp)
# add_library(img_process STATIC ${IMG_SRC})

# Set input and output location
set(INPUT_IMG ${PROJECT_SOURCE_DIR}/src/transform/test.bin)
set(OUTPUT_DIR ${PROJECT_SOURCE_DIR}/logs/)
add_compile_definitions(
  INPUT_IMG="${INPUT_IMG}"
  OUTPUT_DIR="${OUTPUT_DIR}"
  SPDLOG_FMT_EXTERNAL # Fix Error: fmt not found
  DEBUG
)

# Get RTL source code dir
SUBDIRLIST(RTL_SUBDIR ${PROJECT_SOURCE_DIR}/rtl)

set(VERILATOR_ARGS +librescan +libext+.v+.sv+.vh+.svh -y . -x-assign fast --timing -Wno-WIDTHEXPAND -Wno-WIDTHTRUNC -Wno-BLKANDNBLK -Wno-SELRANGE)


# ----------------------  EXE  ---------------------------
#                         Visp
# ----------------------  EXE  ---------------------------
add_executable(Visp ${PROJECT_SOURCE_DIR}/src/sc_main.cpp)
target_include_directories(Visp PRIVATE ${PROJECT_SOURCE_DIR}/src/img_process)
target_link_libraries(Visp PRIVATE spdlog::spdlog $<$<BOOL:${MINGW}>:ws2_32> PRIVATE ZLIB::ZLIB)
# target_link_libraries(Visp PRIVATE img_process)

# Add the Verilated circuit to the target
verilate(Visp SYSTEMC COVERAGE TRACE
  INCLUDE_DIRS ${RTL_SUBDIR}
  VERILATOR_ARGS ${VERILATOR_ARGS}
  SOURCES ${PROJECT_SOURCE_DIR}/rtl/isp.sv
  TOP_MODULE isp
)

# SystemC Link
verilator_link_systemc(Visp)

# ----------------------  EXE  ---------------------------
#                    Visp_Pipeline
# ----------------------  EXE  ---------------------------
add_executable(Visp_Pipeline ${PROJECT_SOURCE_DIR}/src/sc_main_pipeline.cpp)
target_include_directories(
  Visp_Pipeline
  PRIVATE ${PROJECT_SOURCE_DIR}/src/img_process
  PRIVATE ${PROJECT_SOURCE_DIR}/src
  PRIVATE ${ZLIB_INCLUDE_DIR}
)
target_link_libraries(Visp_Pipeline PRIVATE ZLIB::ZLIB PRIVATE spdlog::spdlog $<$<BOOL:${MINGW}>:ws2_32>)
# target_link_libraries(Visp_Pipeline PRIVATE img_process)

# Add the Verilated circuit to the target
verilate(Visp_Pipeline SYSTEMC COVERAGE TRACE_FST TRACE_THREADS 4 THREADS 12
  INCLUDE_DIRS ${RTL_SUBDIR}
  VERILATOR_ARGS ${VERILATOR_ARGS}
  SOURCES ${PROJECT_SOURCE_DIR}/rtl/isp_Pipeline.sv ${PROJECT_SOURCE_DIR}/rtl/SimLib/prim_sim.v
  TOP_MODULE isp_Pipeline
)

# SystemC Link
verilator_link_systemc(Visp_Pipeline)

# ----------------------  EXE  ---------------------------
#                       VWindows
# ----------------------  EXE  ---------------------------
add_executable(VWindows ${PROJECT_SOURCE_DIR}/src/modules_tb/windows_tb.cpp)
target_include_directories(
  VWindows
  PRIVATE ${ZLIB_INCLUDE_DIR}
)
target_link_libraries(VWindows PRIVATE ZLIB::ZLIB PRIVATE spdlog::spdlog $<$<BOOL:${MINGW}>:ws2_32>)
# target_link_libraries(VWindows PRIVATE img_process)

# Add the Verilated circuit to the target
verilate(VWindows SYSTEMC COVERAGE TRACE_FST TRACE_THREADS 4 THREADS 12
  INCLUDE_DIRS ${RTL_SUBDIR}
  VERILATOR_ARGS ${VERILATOR_ARGS}
  SOURCES ${PROJECT_SOURCE_DIR}/rtl/BayerProcess/Windows_tb.sv ${PROJECT_SOURCE_DIR}/rtl/SimLib/prim_sim.v
  TOP_MODULE Windows_tb
)

# SystemC Link
verilator_link_systemc(VWindows)