#include <string>
#include <vector>

#include "df/world.h"

#include "Core.h"
#include "Debug.h"
#include "PluginManager.h"

#include "modules/Persistence.h"
#include "modules/World.h"

using std::string;
using std::vector;

using namespace DFHack;

DFHACK_PLUGIN("multidwarf");
DFHACK_PLUGIN_IS_ENABLED(is_enabled);

REQUIRE_GLOBAL(world);

namespace DFHack {
    DBG_DECLARE(multidwarf, status,   DebugCategory::LDEBUG);
    DBG_DECLARE(multidwarf, onupdate, DebugCategory::LDEBUG);
    DBG_DECLARE(multidwarf, command,  DebugCategory::LDEBUG);
}

static command_result command_callback1(color_ostream &out, vector<string> &parameters);

DFhackCExport command_result plugin_init(color_ostream &out, std::vector<PluginCommand> &commands) {
    DEBUG(status,out).print("initializing %s\n", plugin_name);

    commands.push_back(PluginCommand(
        "multidwarf",
        "Short (~54 character) description of command.",
        command_callback1));
    return CR_OK;
}

DFhackCExport command_result plugin_shutdown(color_ostream &out) {
    DEBUG(status,out).print("shutting down %s\n", plugin_name);

    return CR_OK;

}

DFhackCExport command_result plugin_enable(color_ostream &out, bool enable) {
    DEBUG(status,out).print("%s from the API\n", enable ? "enabled" : "disabled");

    is_enabled = enable;
    return CR_OK;
}

DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event) {
    switch (event) {
        case SC_UNKNOWN:
            DEBUG(status,out).print("game state changed: SC_UNKNOWN\n");
            break;
        case SC_WORLD_LOADED:
            DEBUG(status,out).print("game state changed: SC_WORLD_LOADED\n");
            break;
        case SC_WORLD_UNLOADED:
            DEBUG(status,out).print("game state changed: SC_WORLD_UNLOADED\n");
            break;
        case SC_MAP_LOADED:
            DEBUG(status,out).print("game state changed: SC_MAP_LOADED\n");
            break;
        case SC_MAP_UNLOADED:
            DEBUG(status,out).print("game state changed: SC_MAP_UNLOADED\n");
            break;
        case SC_VIEWSCREEN_CHANGED:
            DEBUG(status,out).print("game state changed: SC_VIEWSCREEN_CHANGED\n");
            break;
        case SC_CORE_INITIALIZED:
            DEBUG(status,out).print("game state changed: SC_CORE_INITIALIZED\n");
            break;
        case SC_BEGIN_UNLOAD:
            DEBUG(status,out).print("game state changed: SC_BEGIN_UNLOAD\n");
            break;
        case SC_PAUSED:
            DEBUG(status,out).print("game state changed: SC_PAUSED\n");
            break;
        case SC_UNPAUSED:
            DEBUG(status,out).print("game state changed: SC_UNPAUSED\n");
            break;
    }

    return CR_OK;
}

DFhackCExport command_result plugin_onupdate (color_ostream &out) {
    DEBUG(onupdate,out).print(
        "onupdate called (run 'debugfilter set info multidwarf onupdate' to stop"
        " seeing these messages)\n");

    return CR_OK;
}

DFhackCExport command_result plugin_save_data (color_ostream &out) {
    DEBUG(status,out).print("save or unload is imminent; time to persist state\n");

    return CR_OK;
}

DFhackCExport command_result plugin_load_data (color_ostream &out) {
    DEBUG(status,out).print("world is loading; time to load persisted state\n");

    return CR_OK;
}

static command_result command_callback1(color_ostream &out, vector<string> &parameters) {
    DEBUG(command,out).print("%s command called with %zu parameters\n",
        plugin_name, parameters.size());

    CoreSuspender suspend;

    return CR_OK;
}