# === This file is part of Calamares - <https://calamares.io> ===
#
#   SPDX-FileCopyrightText: 2020 Adriaan de Groot <groot@kde.org>
#   SPDX-License-Identifier: BSD-2-Clause
#

# The variable SKIP_MODULES can be set to skip particular modules;
# individual modules can also decide they must be skipped (e.g. OS-specific
# modules, or ones with unmet dependencies). Collect the skipped modules
# in this list.
set( LIST_SKIPPED_MODULES "" )

include_directories(
    ${CMAKE_SOURCE_DIR}/src/libcalamares
    ${CMAKE_BINARY_DIR}/src/libcalamares
    ${CMAKE_SOURCE_DIR}/src/libcalamaresui
)

string( REPLACE " " ";" SKIP_LIST "${SKIP_MODULES}" )

file( GLOB SUBDIRECTORIES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*" )
list( SORT SUBDIRECTORIES )

set( _use_categories "" )
set( _found_categories "" )

foreach( SUBDIRECTORY ${SUBDIRECTORIES} )
    list( FIND SKIP_LIST ${SUBDIRECTORY} DO_SKIP )

    set( _skip_reason "user request" )
    # Handle the USE_<foo> variables by looking for subdirectories
    # with a <foo>-<implementation> kind of name.
    if( SUBDIRECTORY MATCHES "^[a-zA-Z0-9_]+-" )
        string( REGEX REPLACE "^[^-]+-" "" _implementation ${SUBDIRECTORY} )
        string( REGEX REPLACE "-.*" "" _category ${SUBDIRECTORY} )
        if( USE_${_category} )
            list( APPEND _use_categories ${_category} )
            if( "${_implementation}" STREQUAL "${USE_${_category}}" )
                list( APPEND _found_categories ${_category} )
            else()
                list( APPEND SKIP_LIST ${SUBDIRECTORY} )
                set( _skip_reason "USE_${_category}=${USE_${_category}}" )
                set( DO_SKIP 1 )
            endif()
        endif()
    endif()

    if( NOT DO_SKIP EQUAL -1 )
        message( "${ColorReset}-- Skipping module ${BoldRed}${SUBDIRECTORY}${ColorReset}." )
        message( "" )
        list( APPEND LIST_SKIPPED_MODULES "${SUBDIRECTORY} (${_skip_reason})" )
    elseif( ( IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/${SUBDIRECTORY}" ) AND
            ( DO_SKIP EQUAL -1 ) )
        set( SKIPPED_MODULES )
        calamares_add_module_subdirectory( ${SUBDIRECTORY} )
        if ( SKIPPED_MODULES )
            list( APPEND LIST_SKIPPED_MODULES "${SKIPPED_MODULES}" )
        endif()
    endif()
endforeach()

# This is *also* done in top-level, so list is displayed
# both before and after the feature summary.
calamares_explain_skipped_modules( ${LIST_SKIPPED_MODULES} )

foreach( _category ${_use_categories} )
    list( FIND _found_categories ${_category} _found )
    if ( ${USE_${_category}} STREQUAL "none" )
        set( _found 0 )
    endif()
    if ( _found EQUAL -1 )
        message( FATAL_ERROR "USE_${_category} is set to ${USE_${_category}} and no module matches." )
    endif()
endforeach()

# TODO:3.3: Use FindPython3
if ( BUILD_TESTING AND BUILD_SCHEMA_TESTING AND PYTHONINTERP_FOUND AND PYTHON_EXECUTABLE )
    # The tests for each config file are independent of whether the
    # module is enabled or not: the config file should match its schema
    # regardless.
    foreach( SUBDIRECTORY ${SUBDIRECTORIES} )
        set( _schema_file "${CMAKE_CURRENT_SOURCE_DIR}/${SUBDIRECTORY}/${SUBDIRECTORY}.schema.yaml" )
        set( _conf_file "${CMAKE_CURRENT_SOURCE_DIR}/${SUBDIRECTORY}/${SUBDIRECTORY}.conf" )
        if ( EXISTS "${_schema_file}" AND EXISTS "${_conf_file}" )
            add_test(
                NAME validate-${SUBDIRECTORY}
                COMMAND ${PYTHON_EXECUTABLE} "${CMAKE_SOURCE_DIR}/ci/configvalidator.py" "${_schema_file}" "${_conf_file}"
            )
        endif()
    endforeach()
endif()