// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include "input_common/input_common.h"

#ifdef HAS_SDL
    #include "input_common/sdl_input/sdl_input.h"
#endif

namespace InputCommon {

// User input system
std::unique_ptr<InputBase> g_user_input;

const std::string& InputBase::GetDeviceName() const {
    return device_name;
}

const Service::HID::PadState& InputBase::GetPadState() const {
    return controller.pad_state;
}

void Init(InputBackends backend) {
    switch (backend) {
        #ifdef HAS_SDL
            // SDL2 backend selected
            case InputBackends::SDL2:
                g_user_input.reset(new SDLController);
                break;
        #endif

        // No backend selected
        case InputBackends::NONE:
            break;

        // If no backend whatsoever inits, launch a critical log
        default:
            LOG_CRITICAL(Input, "Input backend initialization failed!");
            break;
    }

    // Shutdown immediately if backend failed to initialize
    if (!g_user_input && !g_user_input->activated) {
        Shutdown();
        return;
    }
}

void Shutdown() {
    if (g_user_input) g_user_input.release();
}

} // namespace