# Copyright (c) Microsoft Corporation. All rights reserved.
# SPDX-License-Identifier: MIT

cmake_minimum_required (VERSION 3.10)

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake-modules")

option(WARNINGS_AS_ERRORS "Treat compiler warnings as errors" ON)
option(TRANSPORT_CURL "Build internal http transport implementation with CURL for HTTP Pipeline" OFF)
option(UNIT_TESTING "Build unit test projects" OFF)
option(UNIT_TESTING_MOCKS "wrap PAL functions with mock implementation for tests" OFF)
option(TRANSPORT_PAHO "Build IoT Samples with Paho MQTT support" OFF)
option(PRECONDITIONS "Build SDK with preconditions enabled" ON)

# disable preconditions when it's set to OFF
if (NOT PRECONDITIONS)
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DAZ_NO_PRECONDITION_CHECKING")
endif()

# enable mock functions with link option -ld
if(UNIT_TESTING_MOCKS)
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_az_MOCK_ENABLED")
endif()

if(DEFINED ENV{VCPKG_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
  set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
      CACHE STRING "")
elseif(DEFINED ENV{VCPKG_INSTALLATION_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
  set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_INSTALLATION_ROOT}/scripts/buildsystems/vcpkg.cmake"
      CACHE STRING "")
endif()

if(DEFINED ENV{VCPKG_DEFAULT_TRIPLET} AND NOT DEFINED VCPKG_TARGET_TRIPLET)
  set(VCPKG_TARGET_TRIPLET "$ENV{VCPKG_DEFAULT_TRIPLET}" CACHE STRING "")
endif()

project(az LANGUAGES C)
enable_testing ()

include(eng/cmake/global_compile_options.txt)

# List of projects that generate coverage
# This write empty makes sure that if file is already there, we replace it for an empty one
# Then each project will APPEND to this file
# At the end of cmake generate, this file will list the targets for code cov
file(WRITE ${CMAKE_BINARY_DIR}/coverage_targets.txt "")

add_subdirectory(sdk/core/core)

add_subdirectory(sdk/platform/http_client/nohttp)
# Adding transport implementation for curl
# Users can still build Core and SDK client without depending on a HTTP transport implementation
if(TRANSPORT_CURL)
  add_subdirectory(sdk/platform/http_client/curl)
endif()

# SDK Clients and tests
add_subdirectory(sdk/storage/blobs)
add_subdirectory(sdk/iot/common)
add_subdirectory(sdk/iot/hub)
add_subdirectory(sdk/iot/provisioning)

# PAL
add_subdirectory(sdk/platform/noplatform)
add_subdirectory(sdk/platform/posix)
add_subdirectory(sdk/platform/win32)

# User can disable samples generation by setting env variable AZ_SDK_C_NO_SAMPLES
if(NOT DEFINED ENV{AZ_SDK_C_NO_SAMPLES})
  add_subdirectory(sdk/samples/keyvault/keyvault)
  add_subdirectory(sdk/samples/keyvault/keyvault/samples)
  add_subdirectory(sdk/storage/blobs/samples)
  if(TRANSPORT_PAHO)
    add_subdirectory(sdk/iot/provisioning/samples)
    add_subdirectory(sdk/iot/hub/samples)
  endif()
endif()

# default for Unit testing with cmocka is OFF, however, this will be ON on CI and tests must
# pass before commiting changes
if (UNIT_TESTING)
  add_subdirectory(sdk/core/core/test/cmocka)
  add_subdirectory(sdk/storage/blobs/test/cmocka)
  add_subdirectory(sdk/iot/common/tests/cmocka)
  add_subdirectory(sdk/iot/hub/tests/cmocka)
  add_subdirectory(sdk/iot/provisioning/tests/cmocka)

  if(NOT DEFINED ENV{AZ_SDK_C_NO_SAMPLES})
    add_subdirectory(sdk/samples/keyvault/keyvault/test/cmocka)
  endif()
endif()