/* $Id$ */

/** @file intro_gui.cpp The main menu GUI. */

#include "stdafx.h"
#include "openttd.h"
#include "gui.h"
#include "window_gui.h"
#include "textbuf_gui.h"
#include "network/network.h"
#include "variables.h"
#include "heightmap.h"
#include "genworld.h"
#include "network/network_gui.h"
#include "newgrf.h"
#include "strings_func.h"
#include "window_func.h"
#include "fios.h"
#include "gfx_func.h"
#include "settings_type.h"
#include "functions.h"

#include "table/strings.h"
#include "table/sprites.h"

static const Widget _select_game_widgets[] = {
{    WWT_CAPTION, RESIZE_NONE, 13,   0, 335,   0,  13, STR_0307_OPENTTD,         STR_NULL},
{      WWT_PANEL, RESIZE_NONE, 13,   0, 335,  14, 194, 0x0,                      STR_NULL},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12,  10, 167,  22,  33, STR_0140_NEW_GAME,        STR_02FB_START_A_NEW_GAME},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 168, 325,  22,  33, STR_0141_LOAD_GAME,       STR_02FC_LOAD_A_SAVED_GAME},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12,  10, 167,  40,  51, STR_029A_PLAY_SCENARIO,   STR_0303_START_A_NEW_GAME_USING},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 168, 325,  40,  51, STR_PLAY_HEIGHTMAP,       STR_PLAY_HEIGHTMAP_HINT},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12,  10, 167,  58,  69, STR_SCENARIO_EDITOR,      STR_02FE_CREATE_A_CUSTOMIZED_GAME},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 168, 325,  58,  69, STR_MULTIPLAYER,          STR_0300_SELECT_MULTIPLAYER_GAME},

{   WWT_IMGBTN_2, RESIZE_NONE, 12,  10,  86,  77, 131, SPR_SELECT_TEMPERATE,     STR_030E_SELECT_TEMPERATE_LANDSCAPE},
{   WWT_IMGBTN_2, RESIZE_NONE, 12,  90, 166,  77, 131, SPR_SELECT_SUB_ARCTIC,    STR_030F_SELECT_SUB_ARCTIC_LANDSCAPE},
{   WWT_IMGBTN_2, RESIZE_NONE, 12, 170, 246,  77, 131, SPR_SELECT_SUB_TROPICAL,  STR_0310_SELECT_SUB_TROPICAL_LANDSCAPE},
{   WWT_IMGBTN_2, RESIZE_NONE, 12, 250, 326,  77, 131, SPR_SELECT_TOYLAND,       STR_0311_SELECT_TOYLAND_LANDSCAPE},

{ WWT_PUSHTXTBTN, RESIZE_NONE, 12,  10, 167, 139, 150, STR_0148_GAME_OPTIONS,    STR_0301_DISPLAY_GAME_OPTIONS},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 168, 325, 139, 150, STR_01FE_DIFFICULTY,      STR_0302_DISPLAY_DIFFICULTY_OPTIONS},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12,  10, 167, 157, 168, STR_CONFIG_PATCHES,       STR_CONFIG_PATCHES_TIP},
{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 168, 325, 157, 168, STR_NEWGRF_SETTINGS_BUTTON, STR_NULL},

{ WWT_PUSHTXTBTN, RESIZE_NONE, 12, 104, 231, 175, 186, STR_0304_QUIT,            STR_0305_QUIT_OPENTTD},
{   WIDGETS_END},
};

static inline void SetNewLandscapeType(byte landscape)
{
	_settings_newgame.game_creation.landscape = landscape;
	InvalidateWindowClasses(WC_SELECT_GAME);
}

struct SelectGameWindow : public Window {
private:
	enum SelectGameIntroWidgets {
		SGI_GENERATE_GAME = 2,
		SGI_LOAD_GAME,
		SGI_PLAY_SCENARIO,
		SGI_PLAY_HEIGHTMAP,
		SGI_EDIT_SCENARIO,
		SGI_PLAY_NETWORK,
		SGI_TEMPERATE_LANDSCAPE,
		SGI_ARCTIC_LANDSCAPE,
		SGI_TROPIC_LANDSCAPE,
		SGI_TOYLAND_LANDSCAPE,
		SGI_OPTIONS,
		SGI_DIFFICULTIES,
		SGI_PATCHES_OPTIONS,
		SGI_GRF_SETTINGS,
		SGI_EXIT,
	};

public:
	SelectGameWindow(const WindowDesc *desc) : Window(desc)
	{
		this->LowerWidget(_settings_newgame.game_creation.landscape + SGI_TEMPERATE_LANDSCAPE);
		this->FindWindowPlacementAndResize(desc);
	}

	virtual void OnPaint()
	{
		this->SetWidgetLoweredState(SGI_TEMPERATE_LANDSCAPE, _settings_newgame.game_creation.landscape == LT_TEMPERATE);
		this->SetWidgetLoweredState(SGI_ARCTIC_LANDSCAPE, _settings_newgame.game_creation.landscape == LT_ARCTIC);
		this->SetWidgetLoweredState(SGI_TROPIC_LANDSCAPE, _settings_newgame.game_creation.landscape == LT_TROPIC);
		this->SetWidgetLoweredState(SGI_TOYLAND_LANDSCAPE, _settings_newgame.game_creation.landscape == LT_TOYLAND);
		SetDParam(0, STR_6801_EASY + _settings_newgame.difficulty.diff_level);
		this->DrawWidgets();
	}

	virtual void OnClick(Point pt, int widget)
	{
#ifdef ENABLE_NETWORK
		/* Do not create a network server when you (just) have closed one of the game
		 * creation/load windows for the network server. */
		if (IsInsideMM(widget, SGI_GENERATE_GAME, SGI_EDIT_SCENARIO + 1)) _is_network_server = false;
#endif /* ENABLE_NETWORK */

		switch (widget) {
			case SGI_GENERATE_GAME:  ShowGenerateLandscape(); break;
			case SGI_LOAD_GAME:      ShowSaveLoadDialog(SLD_LOAD_GAME); break;
			case SGI_PLAY_SCENARIO:  ShowSaveLoadDialog(SLD_LOAD_SCENARIO); break;
			case SGI_PLAY_HEIGHTMAP: ShowSaveLoadDialog(SLD_LOAD_HEIGHTMAP); break;
			case SGI_EDIT_SCENARIO:  StartScenarioEditor(); break;

			case SGI_PLAY_NETWORK:
				if (!_network_available) {
					ShowErrorMessage(INVALID_STRING_ID, STR_NETWORK_ERR_NOTAVAILABLE, 0, 0);
				} else {
					ShowNetworkGameWindow();
				}
				break;

			case SGI_TEMPERATE_LANDSCAPE: case SGI_ARCTIC_LANDSCAPE:
			case SGI_TROPIC_LANDSCAPE: case SGI_TOYLAND_LANDSCAPE:
				this->RaiseWidget(_settings_newgame.game_creation.landscape + SGI_TEMPERATE_LANDSCAPE);
				SetNewLandscapeType(widget - SGI_TEMPERATE_LANDSCAPE);
				break;

			case SGI_OPTIONS:         ShowGameOptions(); break;
			case SGI_DIFFICULTIES:    ShowGameDifficulty(); break;
			case SGI_PATCHES_OPTIONS: ShowPatchesSelection(); break;
			case SGI_GRF_SETTINGS:    ShowNewGRFSettings(true, true, false, &_grfconfig_newgame); break;
			case SGI_EXIT:            HandleExitGameRequest(); break;
		}
	}
};

static const WindowDesc _select_game_desc = {
	WDP_CENTER, WDP_CENTER, 336, 195, 336, 195,
	WC_SELECT_GAME, WC_NONE,
	WDF_STD_TOOLTIPS | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
	_select_game_widgets,
};

void ShowSelectGameWindow()
{
	new SelectGameWindow(&_select_game_desc);
}

static void AskExitGameCallback(Window *w, bool confirmed)
{
	if (confirmed) _exit_game = true;
}

void AskExitGame()
{
#if defined(_WIN32)
		SetDParam(0, STR_OSNAME_WINDOWS);
#elif defined(__APPLE__)
		SetDParam(0, STR_OSNAME_OSX);
#elif defined(__BEOS__)
		SetDParam(0, STR_OSNAME_BEOS);
#elif defined(__MORPHOS__)
		SetDParam(0, STR_OSNAME_MORPHOS);
#elif defined(__AMIGA__)
		SetDParam(0, STR_OSNAME_AMIGAOS);
#elif defined(__OS2__)
		SetDParam(0, STR_OSNAME_OS2);
#elif defined(SUNOS)
		SetDParam(0, STR_OSNAME_SUNOS);
#else
		SetDParam(0, STR_OSNAME_UNIX);
#endif
	ShowQuery(
		STR_00C7_QUIT,
		STR_00CA_ARE_YOU_SURE_YOU_WANT_TO,
		NULL,
		AskExitGameCallback
	);
}


static void AskExitToGameMenuCallback(Window *w, bool confirmed)
{
	if (confirmed) _switch_mode = SM_MENU;
}

void AskExitToGameMenu()
{
	ShowQuery(
		STR_0161_QUIT_GAME,
		(_game_mode != GM_EDITOR) ? STR_ABANDON_GAME_QUERY : STR_QUIT_SCENARIO_QUERY,
		NULL,
		AskExitToGameMenuCallback
	);
}