cmake_minimum_required(VERSION 3.22)

set(AVAILABLE_TESTS
    interrupt_latency
    malloc_free
    message_queue
    mutex_lock_unlock
    sem_context_switch
    sem_signal_release
    thread_switch_yield
    thread)

set(AVAILABLE_RTOSES
    zephyr
    freertos)

set(ITERATIONS 10000 CACHE STRING "Number of iterations for each test")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DITERATIONS=${ITERATIONS}")

set(CALIBRATION_LOOPS 10000 CACHE STRING "Number of calibration loops for each test")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DCALIBRATION_LOOPS=${CALIBRATION_LOOPS}")

if (NOT RTOS IN_LIST AVAILABLE_RTOSES)
    message(FATAL_ERROR "Choose either [zephyr] or [freertos]")
endif()

# Add include directory for bench_api.h and bench_utils.h
include_directories(h)

# Include any ${RTOS} specific build rules
include(src/${RTOS}/${RTOS}.cmake)
add_subdirectory(src/${RTOS})

project(bench)

list(LENGTH TEST tests_to_run)
if (${tests_to_run} EQUAL 0)
    list(TRANSFORM AVAILABLE_TESTS REPLACE "(.+)" "src/common/bench_\\1_test.c" OUTPUT_VARIABLE sources)

    target_sources(app PRIVATE ${sources})
    target_sources(app PRIVATE src/common/bench_utils.c)
    target_sources(app PRIVATE src/common/bench_all.c)

    return()
endif()

if(NOT ${tests_to_run} EQUAL 1)
    message(FATAL_ERROR "Choose exactly one test")
endif()

if (NOT ${TEST} IN_LIST AVAILABLE_TESTS)
    list(JOIN AVAILABLE_TESTS "\n" pretty_print)
    message(FATAL_ERROR "Choose one test from:\n${pretty_print}")
endif()

string(TOUPPER ${TEST} test_upper)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DRUN_${test_upper}")
target_sources(app PRIVATE src/common/bench_utils.c)
target_sources(app PRIVATE src/common/bench_${TEST}_test.c)