# determines the JavaScript provider (either Qt Script or Qt Declarative)

set(JS_PROVIDER "auto" CACHE STRING "specifies the JavaScript provider: auto (default), qml, script or none")
if(${JS_PROVIDER} STREQUAL "auto")
    find_package(Qt5Script)
    if(Qt5Script_FOUND)
        set(JS_PROVIDER Qt5::Script)
        set(JS_DEFINITION "-D${META_PROJECT_VARNAME_UPPER}_USE_SCRIPT")
        message(STATUS "No JavaScript provider explicitly specified, defaulting to Qt Script.")
    else()
        find_package(Qt5Qml)
        if(Qt5Qml_FOUND)
            set(JS_PROVIDER Qt5::Qml)
            set(JS_DEFINITION "-D${META_PROJECT_VARNAME_UPPER}_USE_JSENGINE")
            message(STATUS "No JavaScript provider explicitly specified, defaulting to Qt QML.")
        else()
            message(STATUS "No JavaScript provider available, features requiring JavaScript have been disabled.")
        endif()
    endif()
else()
    if(${JS_PROVIDER} STREQUAL "script")
        find_package(Qt5Script REQUIRED)
        set(JS_PROVIDER Qt5::Script)
        set(JS_DEFINITION "-D${META_PROJECT_VARNAME_UPPER}_USE_SCRIPT")
        message(STATUS "Using Qt Script as JavaScript provider.")
    elseif(${JS_PROVIDER} STREQUAL "qml")
        find_package(Qt5Qml REQUIRED)
        set(JS_PROVIDER Qt5::Qml)
        set(JS_DEFINITION "-D${META_PROJECT_VARNAME_UPPER}_USE_JSENGINE")
        message(STATUS "Using Qt QML as JavaScript provider.")
    elseif(${JS_PROVIDER} STREQUAL "none")
        set(JS_PROVIDER "")
        set(JS_DEFINITION "-D${META_PROJECT_VARNAME_UPPER}_NO_JSENGINE")
        message(STATUS "JavaScript provider has been disabled.")
    else()
        message(FATAL_ERROR "The specified JavaScript provider '${JS_PROVIDER}' is unknown.")
    endif()
endif()

list(APPEND LIBRARIES ${JS_PROVIDER})
add_definitions(${JS_DEFINITION})