#
# Copyright © 2015 Hasan Yavuz Özderya
#
# This file is part of serialplot.
#
# serialplot is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# serialplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
#

cmake_minimum_required(VERSION 2.8.11)

project(serialplot)

# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)

# Instruct CMake to run moc automatically when needed.
set(CMAKE_AUTOMOC ON)

# add local path for cmake modules
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/modules/")

# Find the QtWidgets library
find_package(Qt5Widgets)

# Find QWT or use static
set(QWT_USE_STATIC false CACHE BOOL "Use a static version of Qwt provided by user.")
set(QWT_STATIC_LIBRARY "" CACHE FILEPATH "Path to the static Qwt library, libqwt.a.")
set(QWT_STATIC_INCLUDE "" CACHE PATH "Path to the Qwt include directory when building Qwt static.")

if (QWT_USE_STATIC)
  set(QWT_LIBRARY ${QWT_STATIC_LIBRARY})
  set(QWT_INCLUDE_DIR ${QWT_STATIC_INCLUDE})
else (QWT_USE_STATIC)
  find_package(Qwt 6.1 REQUIRED)
endif (QWT_USE_STATIC)

# includes
include_directories(${QWT_INCLUDE_DIR})

# wrap UI files
qt5_wrap_ui(UI_FILES mainwindow.ui portcontrol.ui about_dialog.ui)

# Tell CMake to create the helloworld executable
add_executable(serialplot main.cpp mainwindow.cpp portcontrol.cpp
  customcheckablebutton.cpp ${UI_FILES})

# Use the Widgets module from Qt 5.
target_link_libraries(serialplot ${QWT_LIBRARY})
qt5_use_modules(serialplot Widgets SerialPort Svg)

# set compiler flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")

# Enable C++11 support, fail if not supported
include(CheckCXXCompilerFlag)
CHECK_CXX_COMPILER_FLAG("-std=c++11" COMPILER_SUPPORTS_CXX11)
CHECK_CXX_COMPILER_FLAG("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
if(COMPILER_SUPPORTS_CXX11)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
elseif(COMPILER_SUPPORTS_CXX0X)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
else()
  message(STATUS "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
endif()

# version number
set(MAJOR_VERSION 0)
set(MINOR_VERSION 2)
set(PATCH_VERSION 0)
set(VERSION_STRING "${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_VERSION}")

# get revision number from mercurial
find_program(MERCURIAL hg)

if (MERCURIAL)
  execute_process(COMMAND ${MERCURIAL} id -i
    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
    RESULT_VARIABLE MERCURIAL_RESULT
    OUTPUT_VARIABLE VERSION_REVISION
    OUTPUT_STRIP_TRAILING_WHITESPACE)
  if(NOT MERCURIAL_RESULT EQUAL 0)
    set(VERSION_SCM_REVISION false)
  endif(NOT MERCURIAL_RESULT EQUAL 0)
endif (MERCURIAL)

if (NOT VERSION_REVISION)
  set(VERSION_REVISION "0")
endif (NOT VERSION_REVISION)

message("SCM revision: ${VERSION_REVISION}")

# configure version file
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/version.h.in" "${CMAKE_CURRENT_BINARY_DIR}/version.h")

# add make run target
add_custom_target(run
    COMMAND serialplot
    DEPENDS serialplot
    WORKING_DIRECTORY ${CMAKE_PROJECT_DIR}
)

# installing
install(TARGETS serialplot DESTINATION bin)

# install menu item and icon
find_program(XDG-DESKTOP-MENU xdg-desktop-menu)
find_program(XDG-ICON-RESOURCE xdg-icon-resource)

# first copy files to share/serialplot/
install(FILES
  ${CMAKE_SOURCE_DIR}/misc/serialplot.desktop
  ${CMAKE_SOURCE_DIR}/misc/serialplot.png
  DESTINATION share/serialplot)

# install copyright file (in debian format)
install(FILES
  ${CMAKE_SOURCE_DIR}/debian/copyright
  DESTINATION share/doc/serialplot/)

install(CODE "
  execute_process(COMMAND ${XDG-DESKTOP-MENU} install --novendor ${CMAKE_INSTALL_PREFIX}/share/serialplot/serialplot.desktop)
  execute_process(COMMAND ${XDG-ICON-RESOURCE} install --novendor --size 256 ${CMAKE_INSTALL_PREFIX}/share/serialplot/serialplot.png)
")

# uninstalling
configure_file(
  "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
  "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
  IMMEDIATE @ONLY)

add_custom_target(uninstall
  COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
  COMMAND ${XDG-DESKTOP-MENU} uninstall --novendor serialplot.desktop
  COMMAND ${XDG-ICON-RESOURCE} uninstall --novendor --size 256 serialplot)

# packaging
set(CPACK_GENERATOR "DEB")

include(InstallRequiredSystemLibraries)

set(CPACK_PACKAGE_NAME "serialplot")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Small and simple software for plotting data from serial port")
set(CPACK_PACKAGE_CONTACT "Hasan Yavuz Özderya <hy@ozderya.net>")
set(CPACK_PACKAGE_VERSION_MAJOR ${MAJOR_VERSION})
set(CPACK_PACKAGE_VERSION_MINOR ${MINOR_VERSION})
set(CPACK_PACKAGE_VERSION_PATCH ${PATCH_VERSION})
set(CPACK_STRIP_FILES TRUE)
set(CPACK_PACKAGE_EXECUTABLES "serialplot")
set(CPACK_DEBIAN_PACKAGE_DEPENDS "libqt5widgets5 (>= 5.2.1), libqt5serialport5 (>= 5.2.1), libc6 (>= 2.19)")
if (NOT QWT_USE_STATIC)
  set(CPACK_DEBIAN_PACKAGE_DEPENDS "${CPACK_DEBIAN_PACKAGE_DEPENDS}, libqwt6-qt5 (>= 6.1.1)")
endif (NOT QWT_USE_STATIC)
set(CPACK_DEBIAN_PACKAGE_CONTROL_EXTRA "${CMAKE_SOURCE_DIR}/debian/postinst" "${CMAKE_SOURCE_DIR}/debian/postrm")

# set debian package name
string(TOLOWER "${CPACK_PACKAGE_NAME}" CPACK_PACKAGE_NAME_LOWERCASE)
find_program(DPKG_PROGRAM dpkg DOC "dpkg program of Debian-based systems")
if(DPKG_PROGRAM)
  execute_process(
    COMMAND ${DPKG_PROGRAM} --print-architecture
    OUTPUT_VARIABLE CPACK_DEBIAN_PACKAGE_ARCHITECTURE
    OUTPUT_STRIP_TRAILING_WHITESPACE)
  set(CPACK_PACKAGE_FILE_NAME
	"${CPACK_PACKAGE_NAME_LOWERCASE}_${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}_${CPACK_DEBIAN_PACKAGE_ARCHITECTURE}")
else(DPKG_PROGRAM)
  set(CPACK_PACKAGE_FILE_NAME
	"${CPACK_PACKAGE_NAME_LOWERCASE}_${PROJECT_VERSION}-${PROJECT_VERSION_REVISION}_${CMAKE_SYSTEM_NAME}")
endif(DPKG_PROGRAM)

include(CPack)