#This target is to ensure accidental execution of Makefile as a bash script will not execute commands like rm in unexpected directories and exit gracefully.
.prevent_execution:
	exit 0

ifeq ($(origin CC),default)
	CC = gcc
endif
RM = rm

DEBUG =

#IoT client directory
IOT_CLIENT_DIR = ../..

#Use MbedTLS as default tls adapter.
TLS_ADAPTER ?= mbedtls
VALID_TLS_ADAPTER := mbedtls openssl
ifneq ($(filter $(TLS_ADAPTER),$(VALID_TLS_ADAPTER)),)
    $(info TLS_ADAPTER=$(TLS_ADAPTER))
else
    $(error invalid TLS_ADAPTER value)
endif

APP_DIR = $(IOT_CLIENT_DIR)/tests/integration
APP_NAME = integration_tests_$(TLS_ADAPTER)
MT_APP_NAME = integration_tests_$(TLS_ADAPTER)_mt
APP_SRC_FILES = $(shell find $(APP_DIR)/src/ -name '*.c')
MT_APP_SRC_FILES = $(shell find $(APP_DIR)/multithreadingTest/ -name '*.c')
APP_INCLUDE_DIRS = -I $(APP_DIR)/include

PLATFORM_DIR = $(IOT_CLIENT_DIR)/platform/linux

STATIC_LIBS = 

ifeq ($(TLS_ADAPTER),mbedtls)
	#MbedTLS directory
	TEMP_MBEDTLS_SRC_DIR = $(IOT_CLIENT_DIR)/external_libs/mbedTLS
	TLS_LIB_DIR = $(TEMP_MBEDTLS_SRC_DIR)/library
	CRYPTO_LIB_DIR = $(TEMP_MBEDTLS_SRC_DIR)/crypto/library
	TLS_INCLUDE_DIR = -I $(TEMP_MBEDTLS_SRC_DIR)/include
	EXTERNAL_LIBS += -L$(TLS_LIB_DIR)
	STATIC_LIBS += $(TLS_LIB_DIR)/libmbedtls.a $(CRYPTO_LIB_DIR)/libmbedcrypto.a $(TLS_LIB_DIR)/libmbedx509.a
	COMPILER_FLAGS += -DENABLE_TLS_ADAPTER_MBEDTLS
	LD_FLAG += -Wl,-rpath,$(TLS_LIB_DIR)
	PRE_MAKE_CMDS += $(MAKE) -C $(TEMP_MBEDTLS_SRC_DIR);
	CLEAN_CMD += $(MAKE) -C $(TEMP_MBEDTLS_SRC_DIR) clean;
endif

ifeq ($(TLS_ADAPTER),openssl)
	COMPILER_FLAGS += -DENABLE_TLS_ADAPTER_OPENSSL
	LD_FLAG += -lcrypto -lssl
endif

#CBOR - tinycbor
TINYCBOR_DIR = $(IOT_CLIENT_DIR)/external_libs/tinycbor
CBOR_LIB_DIR = $(TINYCBOR_DIR)/lib
CBOR_INCLUDE_DIR = -I $(TINYCBOR_DIR)/src
STATIC_LIBS += $(CBOR_LIB_DIR)/libtinycbor.a
PRE_MAKE_CMDS += $(MAKE) -C $(TINYCBOR_DIR);
CLEAN_CMD += $(MAKE) -C $(TINYCBOR_DIR) clean;
LD_FLAG += -ldl $(STATIC_LIBS) -lpthread

# Logging level control
#LOG_FLAGS += -DENABLE_IOT_DEBUG
#LOG_FLAGS += -DENABLE_IOT_TRACE
#LOG_FLAGS += -DENABLE_IOT_INFO
LOG_FLAGS += -DENABLE_IOT_WARN
LOG_FLAGS += -DENABLE_IOT_ERROR
COMPILER_FLAGS += $(LOG_FLAGS)

#IoT client directory
PLATFORM_COMMON_DIR = $(PLATFORM_DIR)/common
PLATFORM_THREAD_DIR = $(PLATFORM_DIR)/pthread
ifeq ($(TLS_ADAPTER),mbedtls)
	PLATFORM_NETWORK_DIR = $(IOT_CLIENT_DIR)/platform/linux/mbedtls
endif
ifeq ($(TLS_ADAPTER),openssl)
	PLATFORM_NETWORK_DIR = $(IOT_CLIENT_DIR)/platform/linux/openssl
endif

IOT_INCLUDE_DIRS = -I $(PLATFORM_COMMON_DIR)
IOT_INCLUDE_DIRS += -I $(PLATFORM_THREAD_DIR)
IOT_INCLUDE_DIRS += -I $(PLATFORM_NETWORK_DIR)
IOT_INCLUDE_DIRS += -I $(IOT_CLIENT_DIR)/include
IOT_INCLUDE_DIRS += -I $(IOT_CLIENT_DIR)/external_libs/jsmn
ifeq ($(TLS_ADAPTER),mbedtls)
	IOT_INCLUDE_DIRS += -I $(TEMP_MBEDTLS_SRC_DIR)/include/mbedtls
endif

IOT_SRC_FILES += $(shell find $(IOT_CLIENT_DIR)/src/ -name '*.c')
IOT_SRC_FILES += $(shell find $(IOT_CLIENT_DIR)/external_libs/jsmn/ -name '*.c')
IOT_SRC_FILES += $(shell find $(PLATFORM_NETWORK_DIR)/ -name '*.c')
IOT_SRC_FILES += $(shell find $(PLATFORM_COMMON_DIR)/ -name '*.c')
IOT_SRC_FILES += $(shell find $(PLATFORM_THREAD_DIR)/ -name '*.c')

#Aggregate all include and src directories
INCLUDE_ALL_DIRS += $(IOT_INCLUDE_DIRS)
INCLUDE_ALL_DIRS += $(APP_INCLUDE_DIRS)
INCLUDE_ALL_DIRS += $(TLS_INCLUDE_DIR)
INCLUDE_ALL_DIRS += $(CBOR_INCLUDE_DIR)

SRC_FILES += $(APP_SRC_FILES)
SRC_FILES += $(IOT_SRC_FILES)

MT_SRC_FILES += $(MT_APP_SRC_FILES)
MT_SRC_FILES += $(IOT_SRC_FILES)

COMPILER_FLAGS += -g
COMPILER_FLAGS += $(LOG_FLAGS)

MAKE_CMD =    $(CC) $(SRC_FILES) $(COMPILER_FLAGS)    -g3 -D_ENABLE_THREAD_SUPPORT_ -DDOWNLOAD_AGENT_WRITE_FLASH_SUPPORTED -DENABLE_TINYCBOR -o $(APP_DIR)/$(APP_NAME) $(EXTERNAL_LIBS) $(LD_FLAG) $(INCLUDE_ALL_DIRS);
MAKE_MT_CMD = $(CC) $(MT_SRC_FILES) $(COMPILER_FLAGS) -g3 -D_ENABLE_THREAD_SUPPORT_ -o $(APP_DIR)/$(MT_APP_NAME) $(EXTERNAL_LIBS) $(LD_FLAG) $(INCLUDE_ALL_DIRS);

ifeq ($(CODE_SIZE_ENABLE),Y)
POST_MAKE_CMDS += $(CC) -c $(SRC_FILES) $(INCLUDE_ALL_DIRS) -fstack-usage;
POST_MAKE_CMDS += (size --format=Berkeley *.o > $(APP_NAME)_size_info.txt);
POST_MAKE_CMDS += (cat *.su >> $(APP_NAME)_stack_usage.txt);
POST_MAKE_CMDS += ($(RM) *.o);
POST_MAKE_CMDS += ($(RM) *.su);
CLEAN_CMD += ($(RM) -f $(APP_NAME)_size_info.txt);
CLEAN_CMD += ($(RM) -f $(APP_NAME)_stack_usage.txt);
endif

all:
	$(PRE_MAKE_CMDS)
	$(DEBUG)$(MAKE_CMD)
	$(DEBUG)$(MAKE_MT_CMD)
	./$(APP_NAME)
	./$(MT_APP_NAME)
	$(POST_MAKE_CMDS)

app:
	$(PRE_MAKE_CMDS)
	$(DEBUG)$(MAKE_CMD)
	$(DEBUG)$(MAKE_MT_CMD)

tests:
	./$(APP_NAME)
	./$(MT_APP_NAME)
	$(POST_MAKE_CMDS)

clean:
	$(RM) -f $(APP_DIR)/$(APP_NAME)
	$(RM) -f $(APP_DIR)/$(MT_APP_NAME)
	$(CLEAN_CMD)

ALL_TARGETS_CLEAN += test-integration-assert-clean