// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

// original code from athena
// SQL conversion by hack

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "char.h"
#include "../common/db.h"
#include "../common/strlib.h"
#include "../common/socket.h"
#include "../common/showmsg.h"

struct party_data {
	struct party party;
	unsigned int min_lv, max_lv;
	unsigned char size; //Total size of party.
	unsigned family :1; //Is this party a family?
};

static struct party_data *party_pt;
static struct dbt *party_db_;

int mapif_party_broken(int party_id,int flag);
int party_check_empty(struct party_data *p);
int mapif_parse_PartyLeave(int fd, int party_id, int account_id, int char_id);
int party_check_exp_share(struct party_data *p);
int mapif_party_optionchanged(int fd,struct party *p, int account_id, int flag);

#ifndef SQL_DEBUG

#define mysql_query(_x, _y) mysql_real_query(_x, _y, strlen(_y)) //supports ' in names and runs faster [Kevin]

#else 

#define mysql_query(_x, _y) debug_mysql_query(__FILE__, __LINE__, _x, _y)

#endif

//Party Flags on what to save/delete.
//Create a new party entry (index holds leader's info) 
#define PS_CREATE 0x01
//Update basic party info.
#define PS_BASIC 0x02
//Update party's leader
#define PS_LEADER 0x04
//Specify new party member (index specifies which party member)
#define PS_ADDMEMBER 0x08
//Specify member that left (index specifies which party member)
#define PS_DELMEMBER 0x10
//Specify that this party must be deleted.
#define PS_BREAK 0x20
	
//Updates party's level range and unsets even share if broken.
static int int_party_check_lv(struct party_data *p) {
	int i;
	unsigned int lv;
	p->min_lv = UINT_MAX;
	p->max_lv = 0;
	for(i=0;i<MAX_PARTY;i++){
		if(!p->party.member[i].online)
			continue;

		lv=p->party.member[i].lv;
		if (lv < p->min_lv) p->min_lv = lv;
		if (lv > p->max_lv) p->max_lv = lv;
	}

	if (p->party.exp && !party_check_exp_share(p)) {
		p->party.exp = 0;
		mapif_party_optionchanged(0, &p->party, 0, 0);
		return 0;
	}
	return 1;
}
//Calculates the state of a party.
static void int_party_calc_state(struct party_data *p)
{
	int i;
	unsigned int lv;
	p->min_lv = UINT_MAX;
	p->max_lv = 0;
	p->party.count =
	p->size =
	p->family = 0;

	//Check party size, max/min levels.
	for(i=0;i<MAX_PARTY;i++){
		lv=p->party.member[i].lv;
		if (!lv) continue;
		p->size++;
		if(p->party.member[i].online)
		{
			if( lv < p->min_lv ) p->min_lv=lv;
			if( p->max_lv < lv ) p->max_lv=lv;
			p->party.count++;
		}
	}
	if(p->size == 3) {
		//Check Family State.
		p->family = char_family(
			p->party.member[0].char_id,
			p->party.member[1].char_id,
			p->party.member[2].char_id
		);
	}

	if (p->party.exp && !party_check_exp_share(p)) {
		p->party.exp = 0; //Set off even share.
		mapif_party_optionchanged(0, &p->party, 0, 0);
	}
	return;
}

// Save party to mysql
int inter_party_tosql(struct party_data *party, int flag, int index)
{
	// 'party' ('party_id','name','exp','item','leader_id','leader_char')
	char t_name[NAME_LENGTH*2]; //Required for jstrescapecpy [Skotlex]
	struct party *p;
	int party_id;
	if (party == NULL || party->party.party_id == 0)
		return 0;
	p = &party->party;
	party_id = p->party_id;

#ifdef NOISY
	ShowInfo("Save party request ("CL_BOLD"%d"CL_RESET" - %s).\n", party_id, p->name);
#endif
	jstrescapecpy(t_name, p->name);

	if (flag&PS_BREAK) { //Break the party
		// we'll skip name-checking and just reset everyone with the same party id [celest]
		sprintf (tmp_sql, "UPDATE `%s` SET `party_id`='0' WHERE `party_id`='%d'", char_db, party_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
		sprintf(tmp_sql, "DELETE FROM `%s` WHERE `party_id`='%d'", party_db, party_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
		//Remove from memory
		idb_remove(party_db_, party_id);
		return 1;
	}

	if(flag&PS_CREATE) { //Create party
		sprintf(tmp_sql, "INSERT INTO `%s` "
			"(`name`, `exp`, `item`, `leader_id`, `leader_char`) "
			"VALUES ('%s', '%d', '%d', '%d', '%d')",
			party_db, t_name, p->exp, p->item, p->member[index].account_id, p->member[index].char_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
			aFree(party); //Free party, couldn't create it.
			return 0;
		}
		if(mysql_field_count(&mysql_handle) == 0 &&
			mysql_insert_id(&mysql_handle) != 0)
			party_id = p->party_id = (int)mysql_insert_id(&mysql_handle);
		else { //Failed to retrieve ID??
			aFree(party); //Free party, couldn't create it.
			return 0;
		}
		//Add party to db
		int_party_calc_state(party);
		idb_put(party_db_, party_id, party);
	}

	if (flag&PS_BASIC) {
		//Update party info.
		sprintf(tmp_sql, "UPDATE `%s` SET `name`='%s', `exp`='%d', `item`='%d' WHERE `party_id`='%d'",
			party_db, t_name, p->exp, p->item, party_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
	}

	if (flag&PS_LEADER) {
		//Update leader
		sprintf(tmp_sql, "UPDATE `%s`  SET `leader_id`='%d', `leader_char`='%d' WHERE `party_id`='%d'",
			party_db, p->member[index].account_id, p->member[index].char_id, party_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
	}
	
	if (flag&PS_ADDMEMBER) {
		//Add one party member.
		sprintf (tmp_sql, "UPDATE `%s` SET `party_id`='%d' WHERE `account_id`='%d' AND `char_id`='%d'",
			char_db, party_id, p->member[index].account_id, p->member[index].char_id);
		if (mysql_query (&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
	}

	if (flag&PS_DELMEMBER) {
		//Remove one party member.
		sprintf (tmp_sql, "UPDATE `%s` SET `party_id`='0' WHERE `party_id`='%d' AND `account_id`='%d' AND `char_id`='%d'",
			char_db, party_id, p->member[index].account_id, p->member[index].char_id);
		if (mysql_query (&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
	}

	if (save_log)
		ShowInfo("Party Saved (%d - %s)\n", party_id, p->name);
	return 1;
}

// Read party from mysql
struct party_data *inter_party_fromsql(int party_id)
{
	int leader_id = 0, leader_char = 0;
	struct party_data *p;
#ifdef NOISY
	ShowInfo("Load party request ("CL_BOLD"%d"CL_RESET")\n", party_id);
#endif
	if (party_id <=0)
		return NULL;
	
	//Load from memory
	if ((p = idb_get(party_db_, party_id)) != NULL)
		return p;
	
	p = party_pt;
	memset(p, 0, sizeof(struct party_data));

	sprintf(tmp_sql, "SELECT `party_id`, `name`,`exp`,`item`, `leader_id`, `leader_char` FROM `%s` WHERE `party_id`='%d'",
		party_db, party_id); // TBR
	if (mysql_query(&mysql_handle, tmp_sql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		return NULL;
	}

	sql_res = mysql_store_result(&mysql_handle) ;
	if (!sql_res)
		return NULL;
	sql_row = mysql_fetch_row(sql_res);
	if (!sql_row) {
		mysql_free_result(sql_res);
		return NULL;
	}
	p->party.party_id = party_id;
	memcpy(&p->party.name, sql_row[1], NAME_LENGTH-1);
	p->party.exp = atoi(sql_row[2])?1:0;
	p->party.item = atoi(sql_row[3]);
	leader_id = atoi(sql_row[4]);
	leader_char = atoi(sql_row[5]);
	mysql_free_result(sql_res);

	// Load members
	sprintf(tmp_sql,"SELECT `account_id`,`char_id`,`name`,`base_level`,`last_map`,`online`,`class` FROM `%s` WHERE `party_id`='%d'",
		char_db, party_id); // TBR
	if (mysql_query(&mysql_handle, tmp_sql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		return NULL;
	}
	sql_res = mysql_store_result(&mysql_handle);
	if (sql_res) {
		int i;
		for (i = 0; i<MAX_PARTY && (sql_row = mysql_fetch_row(sql_res)); i++) {
			struct party_member *m = &p->party.member[i];
			m->account_id = atoi(sql_row[0]);
			m->char_id = atoi(sql_row[1]);
			m->leader = (m->account_id == leader_id && m->char_id == leader_char)?1:0;
			memcpy(m->name, sql_row[2], NAME_LENGTH);
			m->lv = atoi(sql_row[3]);
			m->map = mapindex_name2id(sql_row[4]);
			m->online = atoi(sql_row[5])?1:0;
			m->class_ = atoi(sql_row[6]);
		}
		mysql_free_result(sql_res);
	}

	if (save_log)
		ShowInfo("Party loaded (%d - %s).\n",party_id, p->party.name);
	//Add party to memory.
	p = aCalloc(1, sizeof(struct party_data));
	memcpy(p, party_pt, sizeof(struct party_data));
	//init state
	int_party_calc_state(p);
	idb_put(party_db_, party_id, p);
	return p;
}

int inter_party_sql_init(void){
	//memory alloc
	party_db_ = db_alloc(__FILE__,__LINE__,DB_INT,DB_OPT_RELEASE_DATA,sizeof(int));
	party_pt = (struct party_data*)aCalloc(sizeof(struct party_data), 1);
	if (!party_pt) {
		ShowFatalError("inter_party_sql_init: Out of Memory!\n");
		exit(1);
	}

	/* Uncomment the following if you want to do a party_db cleanup (remove parties with no members) on startup.[Skotlex]
	ShowStatus("cleaning party table...\n");
	sprintf (tmp_sql,
		"DELETE FROM `%s` USING `%s` LEFT JOIN `%s` ON `%s`.leader_id =`%s`.account_id AND `%s`.leader_char = `%s`.char_id WHERE `%s`.account_id IS NULL",
		party_db, party_db, char_db, party_db, char_db, party_db, char_db, char_db);
	if (mysql_query(&mysql_handle, tmp_sql)) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
	}
	*/
	return 0;
}

void inter_party_sql_final(void)
{
	party_db_->destroy(party_db_, NULL);
	aFree(party_pt);
	return;
}

// Search for the party according to its name
struct party_data* search_partyname(char *str)
{
	char t_name[NAME_LENGTH*2];
	int party_id;

	sprintf(tmp_sql,"SELECT `party_id` FROM `%s` WHERE `name`='%s'",party_db, jstrescapecpy(t_name,str));
	if(mysql_query(&mysql_handle, tmp_sql) ) {
		ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
		ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
	}
	sql_res = mysql_store_result(&mysql_handle) ;
	if (sql_res==NULL || mysql_num_rows(sql_res)<=0)
	{
		if (sql_res) mysql_free_result(sql_res);
		return NULL;
	}
	sql_row = mysql_fetch_row(sql_res);
	party_id = sql_row?atoi(sql_row[0]):0;
	mysql_free_result(sql_res);

	return inter_party_fromsql(party_id);
}

// Returns whether this party can keep having exp share or not.
int party_check_exp_share(struct party_data *p)
{
	return (p->party.count == 0 || //If noone is online, don't mess with the share type.
		(p->family && p->party.count == 3) || //All 3 MUST be online for share to trigger.
	  	p->max_lv - p->min_lv <= party_share_level);
}

// Is there any member in the party?
int party_check_empty(struct party_data *p)
{
	int i;
	if (p==NULL||p->party.party_id==0) return 1;
	for(i=0;i<MAX_PARTY && !p->party.member[i].account_id;i++);
	if (i < MAX_PARTY) return 0;
	// If there is no member, then break the party
	mapif_party_broken(p->party.party_id,0);
	inter_party_tosql(p, PS_BREAK, 0);
	return 1;
}


// Check if a member is in two party, not necessary :)
int party_check_conflict(int party_id,int account_id,int char_id)
{
	return 0;
}

//-------------------------------------------------------------------
// map serverへの通信

// パーティ作成可否
int mapif_party_created(int fd,int account_id,int char_id,struct party *p)
{
	WFIFOW(fd,0)=0x3820;
	WFIFOL(fd,2)=account_id;
	WFIFOL(fd,6)=char_id;
	if(p!=NULL){
		WFIFOB(fd,10)=0;
		WFIFOL(fd,11)=p->party_id;
		memcpy(WFIFOP(fd,15),p->name,NAME_LENGTH);
		ShowInfo("int_party: Party created (%d - %s)\n",p->party_id,p->name);
	}else{
		WFIFOB(fd,10)=1;
		WFIFOL(fd,11)=0;
		memset(WFIFOP(fd,15),0,NAME_LENGTH);
	}
	WFIFOSET(fd,39);

	return 0;
}

// パーティ情報見つからず
int mapif_party_noinfo(int fd,int party_id)
{
	WFIFOW(fd,0)=0x3821;
	WFIFOW(fd,2)=8;
	WFIFOL(fd,4)=party_id;
	WFIFOSET(fd,8);
	ShowWarning("int_party: info not found %d\n",party_id);
	return 0;
}
// パーティ情報まとめ送り
int mapif_party_info(int fd,struct party *p)
{
	unsigned char buf[5+sizeof(struct party)];
	WBUFW(buf,0)=0x3821;
	WBUFW(buf,2)=4+sizeof(struct party);
	memcpy(buf+4,p,sizeof(struct party));

	if(fd<0)
		mapif_sendall(buf,WBUFW(buf,2));
	else
		mapif_send(fd,buf,WBUFW(buf,2));
	return 0;
}
// パーティメンバ追加可否
int mapif_party_memberadded(int fd, int party_id, int account_id, int char_id, int flag) {
	WFIFOHEAD(fd, 15);
	WFIFOW(fd,0) = 0x3822;
	WFIFOL(fd,2) = party_id;
	WFIFOL(fd,6) = account_id;
	WFIFOL(fd,10) = char_id;
	WFIFOB(fd,14) = flag;
	WFIFOSET(fd,15);

	return 0;
}

// パーティ設定変更通知
int mapif_party_optionchanged(int fd,struct party *p,int account_id,int flag)
{
	unsigned char buf[16];
	WBUFW(buf,0)=0x3823;
	WBUFL(buf,2)=p->party_id;
	WBUFL(buf,6)=account_id;
	WBUFW(buf,10)=p->exp;
	WBUFW(buf,12)=p->item;
	WBUFB(buf,14)=flag;
	if(flag==0)
		mapif_sendall(buf,15);
	else
		mapif_send(fd,buf,15);
	return 0;
}

//Checks whether the even-share setting of a party is broken when a character logs in. [Skotlex]
int inter_party_logged(int party_id, int account_id, int char_id)
{
	struct party_data *p;
	int i;

	if (party_id <= 0)
		return 0;

	if (!party_id)
		return 0;
	p = inter_party_fromsql(party_id);
	if(!p) //Non existant party?
		return 0;
	
	for(i = 0; i < MAX_PARTY; i++)
		if(p->party.member[i].account_id==account_id &&
			p->party.member[i].char_id==char_id)
	  	{
			if (!p->party.member[i].online) {
				p->party.member[i].online = 1;
				p->party.count++;
				if(p->party.member[i].lv < p->min_lv ||
					p->party.member[i].lv > p->max_lv)
					int_party_check_lv(p);
			}
			break;
		}
	
	return 0;
}

// パーティ脱退通知
int mapif_party_leaved(int party_id,int account_id, int char_id) {
	unsigned char buf[16];

	WBUFW(buf,0) = 0x3824;
	WBUFL(buf,2) = party_id;
	WBUFL(buf,6) = account_id;
	WBUFL(buf,10) = char_id;
	mapif_sendall(buf, 14);
	return 0;
}

// パーティマップ更新通知
int mapif_party_membermoved(struct party *p,int idx)
{
	unsigned char buf[20];

	WBUFW(buf,0) = 0x3825;
	WBUFL(buf,2) = p->party_id;
	WBUFL(buf,6) = p->member[idx].account_id;
	WBUFL(buf,10) = p->member[idx].char_id;
	WBUFW(buf,14) = p->member[idx].map;
	WBUFB(buf,16) = p->member[idx].online;
	WBUFW(buf,17) = p->member[idx].lv;
	mapif_sendall(buf, 19);
	return 0;
}

// パーティ解散通知
int mapif_party_broken(int party_id,int flag)
{
	unsigned char buf[16];
	WBUFW(buf,0)=0x3826;
	WBUFL(buf,2)=party_id;
	WBUFB(buf,6)=flag;
	mapif_sendall(buf,7);
	//printf("int_party: broken %d\n",party_id);
	return 0;
}
// パーティ内発言
int mapif_party_message(int party_id,int account_id,char *mes,int len, int sfd)
{
	unsigned char buf[512];
	WBUFW(buf,0)=0x3827;
	WBUFW(buf,2)=len+12;
	WBUFL(buf,4)=party_id;
	WBUFL(buf,8)=account_id;
	memcpy(WBUFP(buf,12),mes,len);
	mapif_sendallwos(sfd, buf,len+12);
	return 0;
}

//-------------------------------------------------------------------
// map serverからの通信


// Create Party
int mapif_parse_CreateParty(int fd, char *name, int item, int item2, struct party_member *leader)
{
	struct party_data *p;
	int i;
	if( (p=search_partyname(name))!=NULL){
		mapif_party_created(fd,leader->account_id,leader->char_id,NULL);
		return 0;
	}
	// Check Authorised letters/symbols in the name of the character
	if (char_name_option == 1) { // only letters/symbols in char_name_letters are authorised
		for (i = 0; i < NAME_LENGTH && name[i]; i++)
			if (strchr(char_name_letters, name[i]) == NULL) {
				mapif_party_created(fd,leader->account_id,leader->char_id,NULL);
				return 0;
			}
	} else if (char_name_option == 2) { // letters/symbols in char_name_letters are forbidden
		for (i = 0; i < NAME_LENGTH && name[i]; i++)
			if (strchr(char_name_letters, name[i]) != NULL) {
				mapif_party_created(fd,leader->account_id,leader->char_id,NULL);
				return 0;
			}
	}

	p= aCalloc(1, sizeof(struct party_data));
	
	memcpy(p->party.name,name,NAME_LENGTH);
	p->party.exp=0;
	p->party.item=(item?1:0)|(item2?2:0);

	memcpy(&p->party.member[0], leader, sizeof(struct party_member));
	p->party.member[0].leader=1;
	p->party.member[0].online=1;

	p->party.party_id=-1;//New party.
	if (inter_party_tosql(p,PS_CREATE|PS_ADDMEMBER,0)) {
		mapif_party_created(fd,leader->account_id,leader->char_id,&p->party);
		mapif_party_info(fd,&p->party);
	} else //Failed to create party.
		mapif_party_created(fd,leader->account_id,leader->char_id,NULL);

	return 0;
}
// パーティ情報要求
int mapif_parse_PartyInfo(int fd,int party_id)
{
	struct party_data *p;
	p = inter_party_fromsql(party_id);

	if (p)
		mapif_party_info(fd,&p->party);
	else
		mapif_party_noinfo(fd,party_id);
	return 0;
}
// パーティ追加要求
int mapif_parse_PartyAddMember(int fd, int party_id, struct party_member *member) {
	struct party_data *p;
	int i;

	p = inter_party_fromsql(party_id);

	if(!p || p->size == MAX_PARTY){
		mapif_party_memberadded(fd,party_id,member->account_id,member->char_id,1);
		return 0;
	}

	for(i=0;i<MAX_PARTY;i++){
		if(p->party.member[i].account_id)
			continue;

		memcpy(&p->party.member[i], member, sizeof(struct party_member));
		p->party.member[i].leader=0;
		if (p->party.member[i].online) p->party.count++;
		p->size++;
		if (p->size == 3) //Check family state.
			int_party_calc_state(p);
		else //Check even share range.
		if (member->lv < p->min_lv || member->lv > p->max_lv || p->family) {
			if (p->family) p->family = 0; //Family state broken.
			int_party_check_lv(p);
		}

		mapif_party_memberadded(fd,party_id,member->account_id,member->char_id,0);
		mapif_party_info(-1,&p->party);
		inter_party_tosql(p, PS_ADDMEMBER, i);
		return 0;
	}
	//Party full
	mapif_party_memberadded(fd,party_id,member->account_id,member->char_id,1);
	return 0;
}
// パーティー設定変更要求
int mapif_parse_PartyChangeOption(int fd,int party_id,int account_id,int exp,int item)
{
	struct party_data *p;
	int flag = 0;
	p = inter_party_fromsql(party_id);

	if(!p)
		return 0;

	p->party.exp=exp;
	if( exp && !party_check_exp_share(p) ){
		flag|=0x01;
		p->party.exp=0;
	}
	p->party.item = item&0x3; //Filter out invalid values.
	mapif_party_optionchanged(fd,&p->party,account_id,flag);
	inter_party_tosql(p, PS_BASIC, 0);
	return 0;
}
// パーティ脱退要求
int mapif_parse_PartyLeave(int fd, int party_id, int account_id, int char_id)
{
	struct party_data *p;
	int i,j=-1;

	p = inter_party_fromsql(party_id);
	if (!p) { //Party does not exists?
		sprintf(tmp_sql, "UPDATE `%s` SET `party_id`='0' WHERE `party_id`='%d'", char_db, party_id);
		if (mysql_query(&mysql_handle, tmp_sql)) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
		}
		return 0;
	}

	for (i = 0; i < MAX_PARTY; i++) {
		if(p->party.member[i].account_id == account_id &&
			p->party.member[i].char_id == char_id) {
			break;
		}
	}
	if (i >= MAX_PARTY)
		return 0; //Member not found?

	mapif_party_leaved(party_id, account_id, char_id);

	if (p->party.member[i].leader){
		p->party.member[i].account_id = 0;
		for (j = 0; j < MAX_PARTY; j++) {
			if (!p->party.member[j].account_id)
				continue;
			mapif_party_leaved(party_id, p->party.member[j].account_id, p->party.member[j].char_id);
			p->party.member[j].account_id = 0;
		}
		//Party gets deleted on the check_empty call below.
	} else {
		inter_party_tosql(p,PS_DELMEMBER,i);
		j = p->party.member[i].lv;
		if(p->party.member[i].online) p->party.count--;
		memset(&p->party.member[i], 0, sizeof(struct party_member));
		p->size--;
		if (j == p->min_lv || j == p->max_lv || p->family)
		{
			if(p->family) p->family = 0; //Family state broken.
			int_party_check_lv(p);
		}
	}
		
	if (party_check_empty(p) == 0)
		mapif_party_info(-1,&p->party);
	return 0;
}
// When member goes to other map
int mapif_parse_PartyChangeMap(int fd, int party_id, int account_id, int char_id, unsigned short map, int online, int lv)
{
	struct party_data *p;
	int i;

	p = inter_party_fromsql(party_id);
	if (p == NULL)
		return 0;

	for(i = 0; i < MAX_PARTY; i++) {
		if(p->party.member[i].account_id == account_id &&
			p->party.member[i].char_id == char_id)
		{
			p->party.member[i].map = map;
			if (p->party.member[i].online != online) {
				p->party.member[i].online = online;
				if (online) p->party.count++;
				else p->party.count--;
				if (p->family && p->party.exp && !party_check_exp_share(p))
			  	{	//Even-share lost.
					p->party.exp = 0;
					mapif_party_optionchanged(0, &p->party, 0, 0);
				}
			}
			if (p->party.member[i].lv != lv) {
				if(p->party.member[i].lv == p->min_lv ||
					p->party.member[i].lv == p->max_lv)
				{
					p->party.member[i].lv = lv;
					int_party_check_lv(p);
				} else
					p->party.member[i].lv = lv;
			}
			mapif_party_membermoved(&p->party, i);
			break;
		}
	}
	return 0;
}
// パーティ解散要求
int mapif_parse_BreakParty(int fd,int party_id)
{
	struct party_data *p;

	p = inter_party_fromsql(party_id);

	if(!p)
		return 0;
	inter_party_tosql(p,PS_BREAK,0);
	mapif_party_broken(fd,party_id);
	return 0;
}
// パーティメッセージ送信
int mapif_parse_PartyMessage(int fd,int party_id,int account_id,char *mes,int len)
{
	return mapif_party_message(party_id,account_id,mes,len, fd);
}
// パーティチェック要求
int mapif_parse_PartyCheck(int fd,int party_id,int account_id,int char_id)
{
	return party_check_conflict(party_id,account_id,char_id);
}

int mapif_parse_PartyLeaderChange(int fd,int party_id,int account_id,int char_id)
{
	struct party_data *p;
	int i;

	p = inter_party_fromsql(party_id);

	if(!p)
		return 0;

	for (i = 0; i < MAX_PARTY; i++)
	{
		if(p->party.member[i].leader) 
			p->party.member[i].leader = 0;
		if(p->party.member[i].account_id == account_id &&
			p->party.member[i].char_id == char_id)
	  	{
			p->party.member[i].leader = 1;
			inter_party_tosql(p,PS_LEADER, i);
		}
	}
	return 1;
}

// map server からの通信
// ・１パケットのみ解析すること
// ・パケット長データはinter.cにセットしておくこと
// ・パケット長チェックや、RFIFOSKIPは呼び出し元で行われるので行ってはならない
// ・エラーなら0(false)、そうでないなら1(true)をかえさなければならない
int inter_party_parse_frommap(int fd)
{
	RFIFOHEAD(fd);
	switch(RFIFOW(fd,0)) {
	case 0x3020: mapif_parse_CreateParty(fd, (char*)RFIFOP(fd,4), RFIFOB(fd,28), RFIFOB(fd,29), (struct party_member*)RFIFOP(fd,30)); break;
	case 0x3021: mapif_parse_PartyInfo(fd, RFIFOL(fd,2)); break;
	case 0x3022: mapif_parse_PartyAddMember(fd, RFIFOL(fd,4), (struct party_member*)RFIFOP(fd,8)); break;
	case 0x3023: mapif_parse_PartyChangeOption(fd, RFIFOL(fd,2), RFIFOL(fd,6), RFIFOW(fd,10), RFIFOW(fd,12)); break;
	case 0x3024: mapif_parse_PartyLeave(fd, RFIFOL(fd,2), RFIFOL(fd,6), RFIFOL(fd,10)); break;
	case 0x3025: mapif_parse_PartyChangeMap(fd, RFIFOL(fd,2), RFIFOL(fd,6), RFIFOL(fd,10), RFIFOW(fd,14), RFIFOB(fd,16), RFIFOW(fd,17)); break;
	case 0x3026: mapif_parse_BreakParty(fd, RFIFOL(fd,2)); break;
	case 0x3027: mapif_parse_PartyMessage(fd, RFIFOL(fd,4), RFIFOL(fd,8), (char*)RFIFOP(fd,12), RFIFOW(fd,2)-12); break;
	case 0x3028: mapif_parse_PartyCheck(fd, RFIFOL(fd,2), RFIFOL(fd,6), RFIFOL(fd,10)); break;
	case 0x3029: mapif_parse_PartyLeaderChange(fd, RFIFOL(fd,2), RFIFOL(fd,6), RFIFOL(fd,10)); break;
	default:
		return 0;
	}
	return 1;
}

// サーバーから脱退要求（キャラ削除用）
int inter_party_leave(int party_id,int account_id, int char_id)
{
	return mapif_parse_PartyLeave(-1,party_id,account_id, char_id);
}

int inter_party_CharOnline(int char_id, int party_id) {
   struct party_data *p;
   int i;
   
	if (party_id == -1) {
		//Get party_id from the database
		sprintf (tmp_sql , "SELECT party_id FROM `%s` WHERE char_id='%d'",char_db,char_id);
		if(mysql_query(&mysql_handle, tmp_sql) ) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
			return 0;
		}

		sql_res = mysql_store_result(&mysql_handle) ;
		if(sql_res == NULL)
			return 0; //Eh? No party?
		
		sql_row = mysql_fetch_row(sql_res);
		party_id = sql_row?atoi(sql_row[0]):0;
		mysql_free_result(sql_res);
	}
	if (party_id == 0)
		return 0; //No party...
	
	p = inter_party_fromsql(party_id);
	if(!p) {
		ShowError("Character %d's party %d not found!\n", char_id, party_id);
		return 0;
	}

	//Set member online
	for(i=0; i<MAX_PARTY; i++) {
		if (p->party.member[i].char_id == char_id) {
			if (!p->party.member[i].online) {
				p->party.member[i].online = 1;
				p->party.count++;
				if (p->party.member[i].lv < p->min_lv ||
					p->party.member[i].lv > p->max_lv)
					int_party_check_lv(p);
			}
			break;
		}
	}
	return 1;
}

int inter_party_CharOffline(int char_id, int party_id) {
	struct party_data *p=NULL;
	int i;

	if (party_id == -1) {
		//Get guild_id from the database
		sprintf (tmp_sql , "SELECT party_id FROM `%s` WHERE char_id='%d'",char_db,char_id);
		if(mysql_query(&mysql_handle, tmp_sql) ) {
			ShowSQL("DB error - %s\n",mysql_error(&mysql_handle));
			ShowDebug("at %s:%d - %s\n", __FILE__,__LINE__,tmp_sql);
			return 0;
		}

		sql_res = mysql_store_result(&mysql_handle) ;
		if(sql_res == NULL)
			return 0; //Eh? No party?
		
		sql_row = mysql_fetch_row(sql_res);
		party_id = sql_row?atoi(sql_row[0]):0;
		mysql_free_result(sql_res);
	}
	if (party_id == 0)
		return 0; //No party...
	
	//Character has a party, set character offline and check if they were the only member online
	if ((p = inter_party_fromsql(party_id)) == NULL)
		return 0;

	//Set member offline
	for(i=0; i< MAX_PARTY; i++) {
		if(p->party.member[i].char_id == char_id)
		{
			p->party.member[i].online = 0;
			p->party.count--;
			if(p->party.member[i].lv == p->min_lv ||
				p->party.member[i].lv == p->max_lv)
				int_party_check_lv(p);
			break;
		}
	}

	if(!p->party.count)
		//Parties don't have any data that needs be saved at this point... so just remove it from memory.
		idb_remove(party_db_, party_id);
	return 1;
}