# SPDX-FileCopyrightText: 2026 fuddlesworth
# SPDX-License-Identifier: LGPL-2.1-or-later

find_package(Qt6 REQUIRED COMPONENTS Test)

# Shared test isolation: a private D-Bus session (so a test that touches D-Bus
# cannot activate the INSTALLED daemon, which then holds the test's stdout pipe
# open and hangs ctest after the test itself passed) plus a per-target XDG
# sandbox (so nothing writes into the developer's real ~/.config/plasmazones).
# CMAKE_CURRENT_LIST_DIR, not CMAKE_SOURCE_DIR: the latter is the repo root
# in-tree but this LIBRARY's directory in a standalone configure, so the include
# looked for <tier>/libs/<lib>/cmake/PhosphorTestIsolation.cmake and hard-failed at
# generate time. The relative walk reaches the repo root from either. The EXISTS
# guard covers the remaining case, a genuine extracted `git subtree split` where
# the repo-root module is not in the subtree at all.
if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/../../../../cmake/PhosphorTestIsolation.cmake")
    include(${CMAKE_CURRENT_LIST_DIR}/../../../../cmake/PhosphorTestIsolation.cmake)
else()
    # Stand-ins so the call sites below need no guard of their own.
    # phosphor_append_test_environment is reproduced EXACTLY, because it is
    # self-contained and because callers use it for things like
    # QT_QPA_PLATFORM=offscreen that the tests need to pass at all — a no-op
    # there would break them rather than merely un-isolate them. The isolation
    # helper degrades to nothing: its private D-Bus session and XDG sandbox need
    # module-level state that does not exist without the module.
    function(phosphor_apply_test_isolation _target)
    endfunction()
    function(phosphor_append_test_environment _test_name)
        set_property(TEST ${_test_name} APPEND PROPERTY ENVIRONMENT ${ARGN})
    endfunction()
endif()
function(phosphortheme_add_test name)
    add_executable(${name} ${name}.cpp)
    target_link_libraries(${name}
        PRIVATE
            PhosphorTheme::PhosphorTheme
            Qt6::Core
            Qt6::Gui
            Qt6::Test
    )
    add_test(NAME ${name} COMMAND ${name})
    phosphor_apply_test_isolation(${name})
    set_property(TEST ${name} APPEND PROPERTY LABELS "phosphortheme")
    phosphor_append_test_environment(${name} "QT_QPA_PLATFORM=offscreen")
endfunction()

phosphortheme_add_test(test_palettestore)
# test_palettestore_files holds the loadFromFile slots; test_palettestore_hotreload
# holds the hot-reload slots + the white-box resetToDefaults_releasesDirectoryWatch
# slot. All three share tests/test_palettestore_helpers.h for the
# QTemporaryDir + QFile fixture-write scaffolding.
phosphortheme_add_test(test_palettestore_files)
phosphortheme_add_test(test_palettestore_hotreload)
phosphortheme_add_test(test_templateengine)
phosphortheme_add_test(test_matugenrunner)
phosphortheme_add_test(test_fontfaces)

# QtQuickTest harness for the QML-side singletons (Spectrum's ramp sampling
# and its clamps). Separate from the C++ tests above because it needs a QML
# engine with the Phosphor.Theme module registered: a static QML module ships
# both a library and a plugin registrar, and without the registrar the
# `import Phosphor.Theme` in the .qml cases cannot resolve.
find_package(Qt6 6.6 QUIET COMPONENTS Qml Quick QuickTest)
if(TARGET Qt6::QuickTest AND TARGET PhosphorThemeQml)
    add_executable(test_phosphor_theme_qml tst_theme_qml.cpp)
    target_compile_features(test_phosphor_theme_qml PRIVATE cxx_std_20)
    target_link_libraries(test_phosphor_theme_qml
        PRIVATE
            Qt6::Core
            Qt6::Gui
            Qt6::Qml
            Qt6::Quick
            Qt6::QuickTest
            PhosphorThemeQml
            PhosphorThemeQmlplugin
    )
    add_test(
        NAME test_phosphor_theme_qml
        COMMAND test_phosphor_theme_qml -input ${CMAKE_CURRENT_SOURCE_DIR}
    )
    phosphor_apply_test_isolation(test_phosphor_theme_qml)
    set_property(TEST test_phosphor_theme_qml APPEND PROPERTY LABELS "phosphortheme")
    # The runner spins up a QQuickView, so it needs a platform plugin;
    # offscreen keeps it display-server-free on CI.
    phosphor_append_test_environment(test_phosphor_theme_qml "QT_QPA_PLATFORM=offscreen")
endif()
