/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * This program is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

 * details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#include "sm_stringutil.h"

#include "PlayerManager.h"

#include "MenuStyle_Valve.h"

#include "PlayerManager.h"

#include "ConCmdManager.h"

SH_DECL_HOOK4_void(IServerPluginHelpers, CreateMessage, SH_NOATTRIB, false, edict_t *, DIALOG_TYPE, KeyValues *, IServerPluginCallbacks *);

ValveMenuStyle g_ValveMenuStyle;

extern const char *g_OptionNumTable[];

extern const char *g_OptionCmdTable[];

CallClass<IServerPluginHelpers> *g_pSPHCC = NULL;

ValveMenuStyle::ValveMenuStyle() : m_players(new CValveMenuPlayer[256+1])

{

}

CBaseMenuPlayer *ValveMenuStyle::GetMenuPlayer(int client)

{

	return &m_players[client];

}

bool ValveMenuStyle::OnClientCommand(int client, const char *cmdname, const CCommand &cmd)

{

	if (strcmp(cmdname, "sm_vmenuselect") == 0)

	{

		int key_press = atoi(cmd.Arg(1));

		g_ValveMenuStyle.ClientPressedKey(client, key_press);

		return true;

	}

	return false;

}

void ValveMenuStyle::OnSourceModAllInitialized()

{

	g_Players.AddClientListener(this);

	SH_ADD_HOOK_MEMFUNC(IServerPluginHelpers, CreateMessage, serverpluginhelpers, this, &ValveMenuStyle::HookCreateMessage, false);

	g_pSPHCC = SH_GET_CALLCLASS(serverpluginhelpers);

}

void ValveMenuStyle::OnSourceModShutdown()

{

	SH_RELEASE_CALLCLASS(g_pSPHCC);

	SH_REMOVE_HOOK_MEMFUNC(IServerPluginHelpers, CreateMessage, serverpluginhelpers, this, &ValveMenuStyle::HookCreateMessage, false);

	g_Players.RemoveClientListener(this);

}

void ValveMenuStyle::HookCreateMessage(edict_t *pEdict,

									   DIALOG_TYPE type,

									   KeyValues *kv,

									   IServerPluginCallbacks *plugin)

{

	if (type != DIALOG_MENU)

	{

		return;

	}

	int client = IndexOfEdict(pEdict);

	if (client < 1 || client > 256)

	{

		return;

	}

	CValveMenuPlayer *player = &m_players[client];

	/* We don't care if the player is in a menu because, for all intents and purposes,

	 * the menu is completely private.  Instead, we just figure out the level we'll need

	 * in order to override it.

	 */

	player->curPrioLevel = kv->GetInt("level", player->curPrioLevel);

	/* Oh no! What happens if we got a menu that overwrites ours?! */

	if (player->bInMenu)

	{

		/* Okay, let the external menu survive for now.  It may live another 

		 * day to avenge its grandfather, killed in the great Menu Interruption

		 * battle.

		 */

		_CancelClientMenu(client, MenuCancel_Interrupted, true);

	}

}

IMenuPanel *ValveMenuStyle::CreatePanel()

{

	return new CValveMenuDisplay();

}

IBaseMenu *ValveMenuStyle::CreateMenu(IMenuHandler *pHandler, IdentityToken_t *pOwner)

{

	return new CValveMenu(pHandler, pOwner);

}

const char *ValveMenuStyle::GetStyleName()

{

	return "valve";

}

unsigned int ValveMenuStyle::GetMaxPageItems()

{

	return 8;

}

void ValveMenuStyle::SendDisplay(int client, IMenuPanel *display)

{

	m_players[client].curPrioLevel--;

	CValveMenuDisplay *vDisplay = (CValveMenuDisplay *)display;

	vDisplay->SendRawDisplay(client, m_players[client].curPrioLevel, m_players[client].menuHoldTime);

}

bool ValveMenuStyle::DoClientMenu(int client, IMenuPanel *menu, IMenuHandler *mh, unsigned int time)

{

	if (vsp_interface == NULL)

	{

		return false;

	}

	return BaseMenuStyle::DoClientMenu(client, menu, mh, time);

}

bool ValveMenuStyle::DoClientMenu(int client, CBaseMenu *menu, unsigned int first_item, IMenuHandler *mh, unsigned int time)

{

	if (vsp_interface == NULL)

	{

		mh->OnMenuStart(menu);

		mh->OnMenuCancel(menu, client, MenuCancel_NoDisplay);

		mh->OnMenuEnd(menu, MenuEnd_Cancelled);

		return false;

	}

	return BaseMenuStyle::DoClientMenu(client, menu, first_item, mh, time);

}

unsigned int ValveMenuStyle::GetApproxMemUsage()

{

	return sizeof(ValveMenuStyle) + (sizeof(CValveMenuPlayer) * 257);

}

CValveMenuDisplay::CValveMenuDisplay()

{

	m_pKv = NULL;

	Reset();

}

CValveMenuDisplay::CValveMenuDisplay(CValveMenu *pMenu)

{

	m_pKv = NULL;

	Reset();

	m_pKv->SetColor("color", pMenu->m_IntroColor);

	m_pKv->SetString("title", pMenu->m_IntroMsg);

}

void CValveMenuDisplay::DeleteThis()

{

	delete this;

}

CValveMenuDisplay::~CValveMenuDisplay()

{

	m_pKv->deleteThis();

}

IMenuStyle *CValveMenuDisplay::GetParentStyle()

{

	return &g_ValveMenuStyle;

}

void CValveMenuDisplay::Reset()

{

	if (m_pKv)

	{

		m_pKv->deleteThis();

	}

	m_pKv = new KeyValues("menu");

	m_NextPos = 1;

	m_TitleDrawn = false;

}

unsigned int CValveMenuDisplay::GetCurrentKey()

{

	return m_NextPos;

}

bool CValveMenuDisplay::SetCurrentKey(unsigned int key)

{

	if (key < m_NextPos || key > 9)

	{

		return false;

	}

	m_NextPos = key;

	return true;

}

bool CValveMenuDisplay::SetExtOption(MenuOption option, const void *valuePtr)

{

	if (option == MenuOption_IntroMessage)

	{

		m_pKv->SetString("title", (const char *)valuePtr);

		return true;

	} else if (option == MenuOption_IntroColor) {

		int *array = (int *)valuePtr;

		m_pKv->SetColor("color", Color(array[0], array[1], array[2], array[3]));

		return true;

	} else if (option == MenuOption_Priority) {

		m_pKv->SetInt("level", *(int *)valuePtr);

		return true;

	}

	return false;

}

bool CValveMenuDisplay::CanDrawItem(unsigned int drawFlags)

{

	/**

	 * ITEMDRAW_RAWLINE - We can't draw random text, and this doesn't add a slot,

	 *  so it's completely safe to ignore it.

	 * -----------------------------------------

	 */

	if (drawFlags & ITEMDRAW_RAWLINE)

	{

		return false;

	}

	/**

	 * Special cases, explained in DrawItem()

	 */

	if ((drawFlags & ITEMDRAW_NOTEXT)

		|| (drawFlags & ITEMDRAW_SPACER))

	{

		return true;

	}

	/**

	 * We can't draw disabled text.  We could bump the position, but we

	 * want DirectDraw() to find some actual items to display.

	 */

	if (drawFlags & ITEMDRAW_DISABLED)

	{

		return false;

	}

	return true;

}

unsigned int CValveMenuDisplay::DrawItem(const ItemDrawInfo &item)

{

	if (m_NextPos > 9 || !CanDrawItem(item.style))

	{

		return 0;

	}

	/**

	 * For these cases we can't draw anything at all, but

	 * we can at least bump the position since we were explicitly asked to.

	 */

	if ((item.style & ITEMDRAW_NOTEXT)

		|| (item.style & ITEMDRAW_SPACER))

	{

		return m_NextPos++;

	}

	char buffer[255];

	UTIL_Format(buffer, sizeof(buffer), "%d. %s", m_NextPos, item.display);

	KeyValues *ki = m_pKv->FindKey(g_OptionNumTable[m_NextPos], true);

	ki->SetString("command", g_OptionCmdTable[m_NextPos]);

	ki->SetString("msg", buffer);

	return m_NextPos++;

}

void CValveMenuDisplay::DrawTitle(const char *text, bool onlyIfEmpty/* =false */)

{

	if (onlyIfEmpty && m_TitleDrawn)

	{

		return;

	}

	m_pKv->SetString("msg", text);

	m_TitleDrawn = true;

}

bool CValveMenuDisplay::DrawRawLine(const char *rawline)

{

	return false;

}

void CValveMenuDisplay::SendRawDisplay(int client, int priority, unsigned int time)

{

	m_pKv->SetInt("level", priority);

	m_pKv->SetInt("time", time ? time : 200);

	SH_CALL(g_pSPHCC, &IServerPluginHelpers::CreateMessage)(

		PEntityOfEntIndex(client),

		DIALOG_MENU,

		m_pKv,

		vsp_interface);

}

bool CValveMenuDisplay::SendDisplay(int client, IMenuHandler *handler, unsigned int time)

{

	return g_ValveMenuStyle.DoClientMenu(client, this, handler, time);

}

bool CValveMenuDisplay::SetSelectableKeys(unsigned int keymap)

{

	return false;

}

int CValveMenuDisplay::GetAmountRemaining()

{

	/* :TODO: this is a lie, but nothing really seems meaningful... */

	return -1;

}

unsigned int CValveMenuDisplay::GetApproxMemUsage()

{

	return sizeof(CValveMenuDisplay) + (sizeof(KeyValues) * m_NextPos * 10);

}

CValveMenu::CValveMenu(IMenuHandler *pHandler, IdentityToken_t *pOwner) : 

CBaseMenu(pHandler, &g_ValveMenuStyle, pOwner), 

	m_IntroColor(255, 0, 0, 255)

{

	strcpy(m_IntroMsg, "You have a menu, press ESC");

	m_Pagination = 5;

}

void CValveMenu::Cancel_Finally()

{

	g_ValveMenuStyle.CancelMenu(this);

}

bool CValveMenu::SetPagination(unsigned int itemsPerPage)

{

	if (itemsPerPage > 5)

	{

		return false;

	}

	return CBaseMenu::SetPagination(itemsPerPage);

}

bool CValveMenu::SetExtOption(MenuOption option, const void *valuePtr)

{

	if (option == MenuOption_IntroMessage)

	{

		strncopy(m_IntroMsg, (const char *)valuePtr, sizeof(m_IntroMsg));

		return true;

	} else if (option == MenuOption_IntroColor) {

		unsigned int *array = (unsigned int *)valuePtr;

		m_IntroColor = Color(array[0], array[1], array[2], array[3]);

		return true;

	}

	return false;

}

bool CValveMenu::Display(int client, unsigned int time, IMenuHandler *alt_handler)

{

	return DisplayAtItem(client, time, 0, alt_handler);

}

bool CValveMenu::DisplayAtItem(int client,

							   unsigned int time,

							   unsigned int start_item,

							   IMenuHandler *alt_handler/* =NULL */)

{

	if (m_bCancelling)

	{

		return false;

	}

	return g_ValveMenuStyle.DoClientMenu(client, this, start_item, alt_handler ? alt_handler : m_pHandler, time);

}

IMenuPanel *CValveMenu::CreatePanel()

{

	return new CValveMenuDisplay(this);

}

void CValveMenu::SetMenuOptionFlags(unsigned int flags)

{

	flags |= MENUFLAG_BUTTON_EXIT;

	CBaseMenu::SetMenuOptionFlags(flags);

}

unsigned int CValveMenu::GetApproxMemUsage()

{

	return sizeof(CValveMenu) + GetBaseMemUsage();

}

const char *g_OptionNumTable[] = 

{

	"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10"

};

const char *g_OptionCmdTable[] = 

{

	"sm_vmenuselect 0", /* INVALID! */

	"sm_vmenuselect 1",

	"sm_vmenuselect 2",

	"sm_vmenuselect 3",

	"sm_vmenuselect 4",

	"sm_vmenuselect 5",

	"sm_vmenuselect 6",

	"sm_vmenuselect 7",

	"sm_vmenuselect 8",

	"sm_vmenuselect 9",

	"sm_vmenuselect 10"

};