# Copyright (C) Viktor Szakats
# SPDX-License-Identifier: BSD-3-Clause

cmake_minimum_required(VERSION 3.7)
message(STATUS "Using CMake version ${CMAKE_VERSION}")

project(test-dependent C)

option(TEST_INTEGRATION_MODE "Integration mode" "find_package")

message(STATUS "TEST_INTEGRATION_MODE: ${TEST_INTEGRATION_MODE}")

if(TEST_INTEGRATION_MODE STREQUAL "find_package" OR
   TEST_INTEGRATION_MODE STREQUAL "ExternalProject")
  if(TEST_INTEGRATION_MODE STREQUAL "ExternalProject")
    include(ExternalProject)
    ExternalProject_Add(libssh2
      URL "${FROM_ARCHIVE}"
      URL_HASH "SHA256=${FROM_HASH}"
      INSTALL_COMMAND ""
      DOWNLOAD_EXTRACT_TIMESTAMP ON)
  endif()
  find_package(libssh2 REQUIRED CONFIG)
  find_package(libssh2 REQUIRED CONFIG)  # test for double-inclusion
  foreach(result_var IN ITEMS libssh2_FOUND libssh2_VERSION)
    if(${result_var})
      message(STATUS "${result_var}: |${${result_var}}|")
    else()
      message(FATAL_ERROR "'${result_var}' variable not set by the libssh2 package.")
    endif()
  endforeach()
elseif(TEST_INTEGRATION_MODE STREQUAL "add_subdirectory")
  add_subdirectory(libssh2)
elseif(TEST_INTEGRATION_MODE STREQUAL "FetchContent")
  include(FetchContent)
  option(FROM_GIT_REPO "Git URL" "https://github.com/libssh2/libssh2.git")
  option(FROM_GIT_TAG "Git tag" "master")
  FetchContent_Declare(libssh2
    GIT_REPOSITORY "${FROM_GIT_REPO}"
    GIT_TAG "${FROM_GIT_TAG}")
  FetchContent_MakeAvailable(libssh2)
endif()

add_executable(test-dependent-static-ns "test.c")
target_link_libraries(test-dependent-static-ns PRIVATE "libssh2::libssh2_static")

add_executable(test-dependent-shared-ns "test.c")
target_link_libraries(test-dependent-shared-ns PRIVATE "libssh2::libssh2_shared")

# Alias for either shared or static library
add_executable(test-dependent-selected-ns "test.c")
target_link_libraries(test-dependent-selected-ns PRIVATE "libssh2::libssh2")

if(TEST_INTEGRATION_MODE STREQUAL "find_package" OR
   TEST_INTEGRATION_MODE STREQUAL "ExternalProject")

  # Compatibility alias
  add_executable(test-dependent-compat "test.c")
  target_link_libraries(test-dependent-compat PRIVATE "Libssh2::libssh2")

elseif(TEST_INTEGRATION_MODE STREQUAL "add_subdirectory" OR
       TEST_INTEGRATION_MODE STREQUAL "FetchContent")

  add_executable(test-dependent-static-bare "test.c")
  target_link_libraries(test-dependent-static-bare PRIVATE "libssh2_static")

  add_executable(test-dependent-shared-bare "test.c")
  target_link_libraries(test-dependent-shared-bare PRIVATE "libssh2_shared")

  add_executable(test-dependent-selected-bare "test.c")
  target_link_libraries(test-dependent-selected-bare PRIVATE "libssh2")
endif()