#include "ChainLoader.h"

#include <cstddef>

#include <iostream>

#ifdef WIN32

#define DFhackCExport extern "C" __declspec(dllexport)

#define DFhackDataExport extern "C" __declspec(dllexport)

#else

#define DFhackCExport extern "C" __attribute__ ((visibility("default")))

#define DFhackDataExport __attribute__ ((visibility("default")))

#endif

static ChainLoader * chain = NULL;

// called from the main thread before the simulation thread is started

// and the main event loop is initiated

DFhackCExport void dfhooks_init() {

// don't initialize if already initialized

if (chain)

return;

try {

chain = new ChainLoader();

chain->init();

} catch (std::exception& e) {

std::cerr << "Failed to load dfhooks libraries:" << e.what() << std::endl;

}

}

// called from the main thread after the main event loops exits

DFhackCExport void dfhooks_shutdown() {

if (!chain)

return;

chain->shutdown();

delete chain;

chain = NULL;

}

// called from the simulation thread in the main event loop

DFhackCExport void dfhooks_update() {

if (!chain)

return;

chain->update();

}

// called from the simulation thread just before adding the macro

// recording/playback overlay

DFhackCExport void dfhooks_prerender() {

if (!chain)

return;

chain->prerender();

}

// called from the main thread for each SDL event. if true is returned, then

// the event has been consumed and further processing shouldn't happen

DFhackCExport bool dfhooks_sdl_event(SDL_Event* event) {

if (!chain)

return false;

return chain->sdl_event(event);

}

// called from the main thread just after setting mouse state in gps and just

// before rendering the screen buffer to the screen.

DFhackCExport void dfhooks_sdl_loop() {

if (!chain)

return;

chain->sdl_loop();

}

// called from the main thread for each utf-8 char read from the ncurses input

// key is positive for ncurses keys and negative for everything else

// if true is returned, then the event has been consumed and further processing

// shouldn't happen

DFhackCExport bool dfhooks_ncurses_key(int key) {

if (!chain)

return false;

return chain->ncurses_key(key);

}