# To not mess up the ECM_FIND_VERSION we only include ECM if the required variables are not set
if (NOT KDE_INSTALL_DATADIR OR NOT KDE_INSTALL_METAINFODIR)
    find_package(ECM 5.83.0 CONFIG REQUIRED)
    include(${ECM_KDE_MODULE_DIR}/KDEInstallDirs.cmake)
endif()
set(KPACKAGE_RELATIVE_DATA_INSTALL_DIR "kpackage")

# kpackage_install_package(path componentname [root] [install_dir])
#
# Installs a package to the system path
# @arg path The source path to install from, location of metadata.json
# @arg componentname The plugin id of the component, corresponding to the
#       Id key of the KPlugin object in metadata.json
# @arg root The subdirectory to install to, default: packages
# @arg install_dir the path where to install packages,
#       such as myapp, that would go under prefix/share/myapp:
#       default ${KPACKAGE_RELATIVE_DATA_INSTALL_DIR}
#
# Examples:
# kpackage_install_package(mywidget org.kde.plasma.mywidget plasmoids) # installs an applet
# kpackage_install_package(declarativetoolbox org.kde.toolbox packages) # installs a generic package
# kpackage_install_package(declarativetoolbox org.kde.toolbox) # installs a generic package
#

set(kpackagedir ${CMAKE_CURRENT_LIST_DIR})
function(kpackage_install_package dir component)
   set(root ${ARGV2})
   set(install_dir ${ARGV3})
   if(NOT root)
      set(root packages)
   endif()
   if(NOT install_dir)
      set(install_dir ${KPACKAGE_RELATIVE_DATA_INSTALL_DIR})
   endif()

   install(DIRECTORY ${dir}/ DESTINATION ${KDE_INSTALL_DATADIR}/${install_dir}/${root}/${component}
            PATTERN .svn EXCLUDE
            PATTERN *.qmlc EXCLUDE
            PATTERN CMakeLists.txt EXCLUDE
            PATTERN Messages.sh EXCLUDE
            PATTERN dummydata EXCLUDE)

   get_target_property(kpackagetool_cmd KF6::kpackagetool6 LOCATION)
   if (${component} MATCHES "^.+\\..+\\.") #we make sure there's at least 2 dots
        set(APPDATAFILE "${CMAKE_CURRENT_BINARY_DIR}/${component}.appdata.xml")

        execute_process(
            COMMAND ${kpackagetool_cmd} --appstream-metainfo ${CMAKE_CURRENT_SOURCE_DIR}/${dir} --appstream-metainfo-output ${APPDATAFILE}
            ERROR_VARIABLE appstreamerror
            RESULT_VARIABLE result)
        if (NOT result EQUAL 0)
            message(WARNING "couldn't generate metainfo for ${component}: ${appstreamerror}")
        else()
            if(appstreamerror)
                message(WARNING "warnings during generation of metainfo for ${component}: ${appstreamerror}")
            endif()

            # OPTIONAL because json files can be NoDisplay so they render no XML
            install(FILES ${APPDATAFILE} DESTINATION ${KDE_INSTALL_METAINFODIR} OPTIONAL)
        endif()
   else()
        message(DEBUG "KPackage components should be specified in reverse domain notation. Appstream information won't be generated for ${component}.")
   endif()
endfunction()