#include "g_local.h"
#include "m_player.h"


void SelectNextItem (edict_t *ent)
{
	gclient_t	*cl;
	int			i, index;
	gitem_t		*it;

	cl = ent->client;

	// scan  for the next valid one
	for (i=1 ; i<=MAX_ITEMS ; i++)
	{
		index = (cl->pers.selected_item + i)%MAX_ITEMS;
		if (!cl->pers.inventory[index])
			continue;
		it = &itemlist[index];
		if (!it->use)
			continue;

		cl->pers.selected_item = index;
		return;
	}

	cl->pers.selected_item = -1;
}

void SelectPrevItem (edict_t *ent)
{
	gclient_t	*cl;
	int			i, index;
	gitem_t		*it;

	cl = ent->client;

	// scan  for the next valid one
	for (i=1 ; i<=MAX_ITEMS ; i++)
	{
		index = (cl->pers.selected_item + MAX_ITEMS - i)%MAX_ITEMS;
		if (!cl->pers.inventory[index])
			continue;
		it = &itemlist[index];
		if (!it->use)
			continue;

		cl->pers.selected_item = index;
		return;
	}

	cl->pers.selected_item = -1;
}



void ValidateSelectedItem (edict_t *ent)
{
	gclient_t	*cl;

	cl = ent->client;

	if (cl->pers.inventory[cl->pers.selected_item])
		return;		// valid

	SelectNextItem (ent);
}


//=================================================================================

/*
==================
Cmd_Give_f

Give items to a client
==================
*/
void Cmd_Give_f (edict_t *ent)
{
	char		*name;
	gitem_t		*it;
	int			index;
	int			i;
	qboolean	give_all;

	if (deathmatch->value && !sv_cheats->value)
	{
		gi.cprintf (ent, PRINT_HIGH, "You must run the server with '+set cheats 1' to enable this command.\n");
		return;
	}

	name = gi.args();

	if (Q_stricmp(name, "all") == 0)
		give_all = true;
	else
		give_all = false;

	if (give_all || Q_stricmp(name, "health") == 0)
	{
		if (gi.argc() == 3)
			ent->health += atoi(gi.argv(2));
		else
			ent->health = ent->max_health;
		if (!give_all)
			return;
	}

	if (give_all || Q_stricmp(name, "weapons") == 0)
	{
		for (i=0 ; i<game.num_items ; i++)
		{
			it = itemlist + i;
			if (!it->pickup)
				continue;
			if (!(it->flags & IT_WEAPON))
				continue;
			ent->client->pers.inventory[i] += 1;
		}
		if (!give_all)
			return;
	}

	if (give_all || Q_stricmp(name, "ammo") == 0)
	{
		for (i=0 ; i<game.num_items ; i++)
		{
			it = itemlist + i;
			if (!it->pickup)
				continue;
			if (!(it->flags & IT_AMMO))
				continue;
			Add_Ammo (ent, it, 1000);
		}
		if (!give_all)
			return;
	}

	if (give_all || Q_stricmp(name, "armor") == 0)
	{
		gitem_armor_t	*info;

		it = FindItem("Body Armor");
		info = (gitem_armor_t *)it->info;
		ent->client->pers.inventory[ITEM_INDEX(it)] = info->max_count;

		if (!give_all)
			return;
	}

	if (give_all)
	{
		for (i=0 ; i<game.num_items ; i++)
		{
			it = itemlist + i;
			if (!it->pickup)
				continue;
			if (it->flags & (IT_ARMOR|IT_WEAPON|IT_AMMO))
				continue;
			ent->client->pers.inventory[i] = 1;
		}
		return;
	}

	it = FindItem (name);
	if (!it)
	{
		name = gi.argv(1);
		it = FindItem (name);
		if (!it)
		{
			gi.dprintf ("unknown item\n");
			return;
		}
	}

	if (!it->pickup)
	{
		gi.dprintf ("non-pickup item\n");
		return;
	}

	index = ITEM_INDEX(it);

	if (it->flags & IT_WEAPON)
	{
		ent->client->pers.inventory[index] += 1;
	}
	else if (it->flags & IT_AMMO)
	{
		if (gi.argc() == 3)
			ent->client->pers.inventory[index] += atoi(gi.argv(2));
		else
			ent->client->pers.inventory[index] += it->quantity;
	}
	else
	{
		ent->client->pers.inventory[index] += 1;
	}
}


/*
==================
Cmd_God_f

Sets client to godmode

argv(0) god
==================
*/
void Cmd_God_f (edict_t *ent)
{
	char	*msg;

	if (deathmatch->value && !sv_cheats->value)
	{
		gi.cprintf (ent, PRINT_HIGH, "You must run the server with '+set cheats 1' to enable this command.\n");
		return;
	}

	ent->flags ^= FL_GODMODE;
	if (!(ent->flags & FL_GODMODE) )
		msg = "godmode OFF\n";
	else
		msg = "godmode ON\n";

	gi.cprintf (ent, PRINT_HIGH, msg);
}


/*
==================
Cmd_Notarget_f

Sets client to notarget

argv(0) notarget
==================
*/
void Cmd_Notarget_f (edict_t *ent)
{
	char	*msg;

	if (deathmatch->value && !sv_cheats->value)
	{
		gi.cprintf (ent, PRINT_HIGH, "You must run the server with '+set cheats 1' to enable this command.\n");
		return;
	}

	ent->flags ^= FL_NOTARGET;
	if (!(ent->flags & FL_NOTARGET) )
		msg = "notarget OFF\n";
	else
		msg = "notarget ON\n";

	gi.cprintf (ent, PRINT_HIGH, msg);
}


/*
==================
Cmd_Noclip_f

argv(0) noclip
==================
*/
void Cmd_Noclip_f (edict_t *ent)
{
	char	*msg;

	if (deathmatch->value && !sv_cheats->value)
	{
		gi.cprintf (ent, PRINT_HIGH, "You must run the server with '+set cheats 1' to enable this command.\n");
		return;
	}

	if (ent->movetype == MOVETYPE_NOCLIP)
	{
		ent->movetype = MOVETYPE_WALK;
		msg = "noclip OFF\n";
	}
	else
	{
		ent->movetype = MOVETYPE_NOCLIP;
		msg = "noclip ON\n";
	}

	gi.cprintf (ent, PRINT_HIGH, msg);
}


/*
==================
Cmd_Use_f

Use an inventory item
==================
*/
void Cmd_Use_f (edict_t *ent)
{
	int			index;
	gitem_t		*it;
	char		*s;

	s = gi.args();
	it = FindItem (s);
	if (!it)
	{
		gi.cprintf (ent, PRINT_HIGH, "unknown item: %s\n", s);
		return;
	}
	index = ITEM_INDEX(it);
	if (!ent->client->pers.inventory[index])
	{
		gi.cprintf (ent, PRINT_HIGH, "Out of item: %s\n", s);
		return;
	}

	it->use (ent, it);
}


/*
==================
Cmd_Drop_f

Drop an inventory item
==================
*/
void Cmd_Drop_f (edict_t *ent)
{
	int			index;
	gitem_t		*it;
	char		*s;

	if (!(deathmatch->value))	// no dropping in single player
		return;

	s = gi.args();
	it = FindItem (s);
	if (!it)
	{
		gi.cprintf (ent, PRINT_HIGH, "unknown item: %s\n", s);
		return;
	}
	index = ITEM_INDEX(it);
	if (!ent->client->pers.inventory[index])
	{
		gi.cprintf (ent, PRINT_HIGH, "Out of item: %s\n", s);
		return;
	}

	it->drop (ent, it);
}


/*
=================
Cmd_Inven_f
=================
*/
void Cmd_Inven_f (edict_t *ent)
{
	int			i;
	gclient_t	*cl;

	cl = ent->client;

	if (cl->showinventory)
	{
		cl->showinventory = false;
		return;
	}

	cl->showinventory = true;
	cl->showscores = false;

	gi.WriteByte (svc_inventory);
	for (i=0 ; i<MAX_ITEMS ; i++)
	{
		gi.WriteShort (cl->pers.inventory[i]);
	}
	gi.unicast (ent, true);
}

/*
=================
Cmd_InvUse_f
=================
*/
void Cmd_InvUse_f (edict_t *ent)
{
	gitem_t		*it;

	ValidateSelectedItem (ent);

	if (ent->client->pers.selected_item == -1)
	{
		gi.cprintf (ent, PRINT_HIGH, "No item to use.\n");
		return;
	}

	it = &itemlist[ent->client->pers.selected_item];
	if (!it->use)
	{
		gi.cprintf (ent, PRINT_HIGH, "Item is not usable.\n");
		return;
	}
	it->use (ent, it);
}

/*
=================
Cmd_WeapPrev_f
=================
*/
void Cmd_WeapPrev_f (edict_t *ent)
{
	gclient_t	*cl;
	int			i, index;
	gitem_t		*it;
	int			selected_weapon;

	cl = ent->client;

	if (!cl->pers.weapon)
		return;

	selected_weapon = ITEM_INDEX(cl->pers.weapon);

	// scan  for the next valid one
	for (i=1 ; i<=MAX_ITEMS ; i++)
	{
		index = (selected_weapon + i)%MAX_ITEMS;
		if (!cl->pers.inventory[index])
			continue;
		it = &itemlist[index];
		if (!it->use)
			continue;
		if (! (it->flags & IT_WEAPON) )
			continue;
		it->use (ent, it);
		if (cl->pers.weapon == it)
			return;	// successful
	}
}

/*
=================
Cmd_WeapNext_f
=================
*/
void Cmd_WeapNext_f (edict_t *ent)
{
	gclient_t	*cl;
	int			i, index;
	gitem_t		*it;
	int			selected_weapon;

	cl = ent->client;

	if (!cl->pers.weapon)
		return;

	selected_weapon = ITEM_INDEX(cl->pers.weapon);

	// scan  for the next valid one
	for (i=1 ; i<=MAX_ITEMS ; i++)
	{
		index = (selected_weapon + MAX_ITEMS - i)%MAX_ITEMS;
		if (!cl->pers.inventory[index])
			continue;
		it = &itemlist[index];
		if (!it->use)
			continue;
		if (! (it->flags & IT_WEAPON) )
			continue;
		it->use (ent, it);
		if (cl->pers.weapon == it)
			return;	// successful
	}
}

/*
=================
Cmd_InvDrop_f
=================
*/
void Cmd_InvDrop_f (edict_t *ent)
{
	gitem_t		*it;

	ValidateSelectedItem (ent);

	if (ent->client->pers.selected_item == -1)
	{
		gi.cprintf (ent, PRINT_HIGH, "No item to drop.\n");
		return;
	}

	it = &itemlist[ent->client->pers.selected_item];
	if (!it->drop)
	{
		gi.cprintf (ent, PRINT_HIGH, "Item is not dropable.\n");
		return;
	}
	it->drop (ent, it);
}

/*
=================
Cmd_Kill_f
=================
*/
void Cmd_Kill_f (edict_t *ent)
{
	ent->flags &= ~FL_GODMODE;
	ent->health = 0;
	player_die (ent, ent, ent, 100000, vec3_origin);
	// don't even bother waiting for death frames
	ent->deadflag = DEAD_DEAD;
	respawn (ent);
}

/*
=================
Cmd_PutAway_f
=================
*/
void Cmd_PutAway_f (edict_t *ent)
{
	ent->client->showscores = false;
	ent->client->showinventory = false;
}

/*
=================
Cmd_Wave_f
=================
*/
void Cmd_Wave_f (edict_t *ent)
{
	int		i;

	i = atoi (gi.argv(1));

	// can't wave when ducked
	if (ent->client->ps.pmove.pm_flags & PMF_DUCKED)
		return;

	if (ent->client->anim_priority > ANIM_WAVE)
		return;

	ent->client->anim_priority = ANIM_WAVE;

	switch (i)
	{
	case 0:
		gi.cprintf (ent, PRINT_HIGH, "flipoff\n");
		ent->s.frame = FRAME_flip01-1;
		ent->client->anim_end = FRAME_flip12;
		break;
	case 1:
		gi.cprintf (ent, PRINT_HIGH, "salute\n");
		ent->s.frame = FRAME_salute01-1;
		ent->client->anim_end = FRAME_salute11;
		break;
	case 2:
		gi.cprintf (ent, PRINT_HIGH, "taunt\n");
		ent->s.frame = FRAME_taunt01-1;
		ent->client->anim_end = FRAME_taunt17;
		break;
	case 3:
		gi.cprintf (ent, PRINT_HIGH, "wave\n");
		ent->s.frame = FRAME_wave01-1;
		ent->client->anim_end = FRAME_wave11;
		break;
	case 4:
	default:
		gi.cprintf (ent, PRINT_HIGH, "point\n");
		ent->s.frame = FRAME_point01-1;
		ent->client->anim_end = FRAME_point12;
		break;
	}
}

/*
=================
ClientCommand
=================
*/
void ClientCommand (edict_t *ent)
{
	char	*cmd;

	if (!ent->client)
		return;		// not fully in game yet

	cmd = gi.argv(0);
	if (Q_stricmp (cmd, "use") == 0)
		Cmd_Use_f (ent);
	else if (Q_stricmp (cmd, "drop") == 0)
		Cmd_Drop_f (ent);
	else if (Q_stricmp (cmd, "give") == 0)
		Cmd_Give_f (ent);
	else if (Q_stricmp (cmd, "god") == 0)
		Cmd_God_f (ent);
	else if (Q_stricmp (cmd, "notarget") == 0)
		Cmd_Notarget_f (ent);
	else if (Q_stricmp (cmd, "noclip") == 0)
		Cmd_Noclip_f (ent);
	else if (Q_stricmp (cmd, "help") == 0)
		Cmd_Help_f (ent);
	else if (Q_stricmp (cmd, "inven") == 0)
		Cmd_Inven_f (ent);
	else if (Q_stricmp (cmd, "invnext") == 0)
		SelectNextItem (ent);
	else if (Q_stricmp (cmd, "invprev") == 0)
		SelectPrevItem (ent);
	else if (Q_stricmp (cmd, "invuse") == 0)
		Cmd_InvUse_f (ent);
	else if (Q_stricmp (cmd, "invdrop") == 0)
		Cmd_InvDrop_f (ent);
	else if (Q_stricmp (cmd, "weapprev") == 0)
		Cmd_WeapPrev_f (ent);
	else if (Q_stricmp (cmd, "weapnext") == 0)
		Cmd_WeapNext_f (ent);
	else if (Q_stricmp (cmd, "kill") == 0)
		Cmd_Kill_f (ent);
	else if (Q_stricmp (cmd, "putaway") == 0)
		Cmd_PutAway_f (ent);
	else if (Q_stricmp (cmd, "wave") == 0)
		Cmd_Wave_f (ent);
	else if (Q_stricmp (cmd, "gameversion") == 0)
	{
		gi.cprintf (ent, PRINT_HIGH, "%s : %s\n", GAMEVERSION, __DATE__);
	}
	else if (Q_stricmp (cmd, "fov") == 0)
	{
		ent->client->ps.fov = atoi(gi.argv(1));
		if (ent->client->ps.fov < 1)
			ent->client->ps.fov = 90;
		else if (ent->client->ps.fov > 160)
			ent->client->ps.fov = 160;
	}
	else
		gi.cprintf (ent, PRINT_HIGH, "Bad command: %s\n", cmd);
}