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path: root/src/char/int_auction.c
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// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
// For more information, see LICENCE in the main folder

#include "../common/mmo.h"
#include "../common/malloc.h"
#include "../common/db.h"
#include "../common/showmsg.h"
#include "../common/socket.h"
#include "../common/strlib.h"
#include "../common/sql.h"
#include "../common/timer.h"
#include "char.h"
#include "inter.h"
#include "int_mail.h"
#include "int_auction.h"

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

static DBMap *auction_db_ = NULL; // int auction_id -> struct auction_data*

void auction_delete(struct auction_data *auction);
static int auction_end_timer(int tid, unsigned int tick, int id, intptr_t data);

static int auction_count(int char_id, bool buy)
{
    int i = 0;
    struct auction_data *auction;
    DBIterator *iter = db_iterator(auction_db_);

    for (auction = dbi_first(iter); dbi_exists(iter); auction = dbi_next(iter)) {
        if ((buy && auction->buyer_id == char_id) || (!buy && auction->seller_id == char_id))
            i++;
    }
    dbi_destroy(iter);

    return i;
}

void auction_save(struct auction_data *auction)
{
    int j;
    StringBuf buf;
    SqlStmt *stmt;

    if (!auction)
        return;

    StringBuf_Init(&buf);
    StringBuf_Printf(&buf, "UPDATE `%s` SET `seller_id` = '%d', `seller_name` = ?, `buyer_id` = '%d', `buyer_name` = ?, `price` = '%d', `buynow` = '%d', `hours` = '%d', `timestamp` = '%lu', `nameid` = '%d', `item_name` = ?, `type` = '%d', `refine` = '%d', `attribute` = '%d'",
                     auction_db, auction->seller_id, auction->buyer_id, auction->price, auction->buynow, auction->hours, (unsigned long)auction->timestamp, auction->item.nameid, auction->type, auction->item.refine, auction->item.attribute);
    for (j = 0; j < MAX_SLOTS; j++)
        StringBuf_Printf(&buf, ", `card%d` = '%d'", j, auction->item.card[j]);
    StringBuf_Printf(&buf, " WHERE `auction_id` = '%d'", auction->auction_id);

    stmt = SqlStmt_Malloc(sql_handle);
    if (SQL_SUCCESS != SqlStmt_PrepareStr(stmt, StringBuf_Value(&buf))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_STRING, auction->seller_name, strnlen(auction->seller_name, NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, auction->buyer_name, strnlen(auction->buyer_name, NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, auction->item_name, strnlen(auction->item_name, ITEM_NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_Execute(stmt)) {
        SqlStmt_ShowDebug(stmt);
    }

    SqlStmt_Free(stmt);
    StringBuf_Destroy(&buf);
}

unsigned int auction_create(struct auction_data *auction)
{
    int j;
    StringBuf buf;
    SqlStmt *stmt;

    if (!auction)
        return false;

    auction->timestamp = time(NULL) + (auction->hours * 3600);

    StringBuf_Init(&buf);
    StringBuf_Printf(&buf, "INSERT INTO `%s` (`seller_id`,`seller_name`,`buyer_id`,`buyer_name`,`price`,`buynow`,`hours`,`timestamp`,`nameid`,`item_name`,`type`,`refine`,`attribute`", auction_db);
    for (j = 0; j < MAX_SLOTS; j++)
        StringBuf_Printf(&buf, ",`card%d`", j);
    StringBuf_Printf(&buf, ") VALUES ('%d',?,'%d',?,'%d','%d','%d','%lu','%d',?,'%d','%d','%d'",
                     auction->seller_id, auction->buyer_id, auction->price, auction->buynow, auction->hours, (unsigned long)auction->timestamp, auction->item.nameid, auction->type, auction->item.refine, auction->item.attribute);
    for (j = 0; j < MAX_SLOTS; j++)
        StringBuf_Printf(&buf, ",'%d'", auction->item.card[j]);
    StringBuf_AppendStr(&buf, ")");

    stmt = SqlStmt_Malloc(sql_handle);
    if (SQL_SUCCESS != SqlStmt_PrepareStr(stmt, StringBuf_Value(&buf))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 0, SQLDT_STRING, auction->seller_name, strnlen(auction->seller_name, NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 1, SQLDT_STRING, auction->buyer_name, strnlen(auction->buyer_name, NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_BindParam(stmt, 2, SQLDT_STRING, auction->item_name, strnlen(auction->item_name, ITEM_NAME_LENGTH))
        ||  SQL_SUCCESS != SqlStmt_Execute(stmt)) {
        SqlStmt_ShowDebug(stmt);
        auction->auction_id = 0;
    } else {
        struct auction_data *auction_;
        unsigned int tick = auction->hours * 3600000;

        auction->item.amount = 1;
        auction->item.identify = 1;
        auction->item.expire_time = 0;

        auction->auction_id = (unsigned int)SqlStmt_LastInsertId(stmt);
        auction->auction_end_timer = add_timer(gettick() + tick , auction_end_timer, auction->auction_id, 0);
        ShowInfo("New Auction %u | time left %u ms | By %s.\n", auction->auction_id, tick, auction->seller_name);

        CREATE(auction_, struct auction_data, 1);
        memcpy(auction_, auction, sizeof(struct auction_data));
        idb_put(auction_db_, auction_->auction_id, auction_);
    }

    SqlStmt_Free(stmt);
    StringBuf_Destroy(&buf);

    return auction->auction_id;
}

static void mapif_Auction_message(int char_id, unsigned char result)
{
    unsigned char buf[74];

    WBUFW(buf,0) = 0x3854;
    WBUFL(buf,2) = char_id;
    WBUFL(buf,6) = result;
    mapif_sendall(buf,7);
}

static int auction_end_timer(int tid, unsigned int tick, int id, intptr_t data)
{
    struct auction_data *auction;
    if ((auction = (struct auction_data *)idb_get(auction_db_, id)) != NULL) {
        if (auction->buyer_id) {
            mail_sendmail(0, "Auction Manager", auction->buyer_id, auction->buyer_name, "Auction", "Thanks, you won the auction!.", 0, &auction->item);
            mapif_Auction_message(auction->buyer_id, 6); // You have won the auction
            mail_sendmail(0, "Auction Manager", auction->seller_id, auction->seller_name, "Auction", "Payment for your auction!.", auction->price, NULL);
        } else
            mail_sendmail(0, "Auction Manager", auction->seller_id, auction->seller_name, "Auction", "No buyers have been found for your auction.", 0, &auction->item);

        ShowInfo("Auction End: id %u.\n", auction->auction_id);

        auction->auction_end_timer = INVALID_TIMER;
        auction_delete(auction);
    }

    return 0;
}

void auction_delete(struct auction_data *auction)
{
    unsigned int auction_id = auction->auction_id;

    if (SQL_ERROR == Sql_Query(sql_handle, "DELETE FROM `%s` WHERE `auction_id` = '%d'", auction_db, auction_id))
        Sql_ShowDebug(sql_handle);

    if (auction->auction_end_timer != INVALID_TIMER)
        delete_timer(auction->auction_end_timer, auction_end_timer);

    idb_remove(auction_db_, auction_id);
}

void inter_auctions_fromsql(void)
{
    int i;
    struct auction_data *auction;
    struct item *item;
    char *data;
    StringBuf buf;
    unsigned int tick = gettick(), endtick;
    time_t now = time(NULL);

    StringBuf_Init(&buf);
    StringBuf_AppendStr(&buf, "SELECT `auction_id`,`seller_id`,`seller_name`,`buyer_id`,`buyer_name`,"
                        "`price`,`buynow`,`hours`,`timestamp`,`nameid`,`item_name`,`type`,`refine`,`attribute`");
    for (i = 0; i < MAX_SLOTS; i++)
        StringBuf_Printf(&buf, ",`card%d`", i);
    StringBuf_Printf(&buf, " FROM `%s` ORDER BY `auction_id` DESC", auction_db);

    if (SQL_ERROR == Sql_Query(sql_handle, StringBuf_Value(&buf)))
        Sql_ShowDebug(sql_handle);

    StringBuf_Destroy(&buf);

    while (SQL_SUCCESS == Sql_NextRow(sql_handle)) {
        CREATE(auction, struct auction_data, 1);
        Sql_GetData(sql_handle, 0, &data, NULL);
        auction->auction_id = atoi(data);
        Sql_GetData(sql_handle, 1, &data, NULL);
        auction->seller_id = atoi(data);
        Sql_GetData(sql_handle, 2, &data, NULL);
        safestrncpy(auction->seller_name, data, NAME_LENGTH);
        Sql_GetData(sql_handle, 3, &data, NULL);
        auction->buyer_id = atoi(data);
        Sql_GetData(sql_handle, 4, &data, NULL);
        safestrncpy(auction->buyer_name, data, NAME_LENGTH);
        Sql_GetData(sql_handle, 5, &data, NULL);
        auction->price = atoi(data);
        Sql_GetData(sql_handle, 6, &data, NULL);
        auction->buynow = atoi(data);
        Sql_GetData(sql_handle, 7, &data, NULL);
        auction->hours = atoi(data);
        Sql_GetData(sql_handle, 8, &data, NULL);
        auction->timestamp = atoi(data);

        item = &auction->item;
        Sql_GetData(sql_handle, 9, &data, NULL);
        item->nameid = atoi(data);
        Sql_GetData(sql_handle,10, &data, NULL);
        safestrncpy(auction->item_name, data, ITEM_NAME_LENGTH);
        Sql_GetData(sql_handle,11, &data, NULL);
        auction->type = atoi(data);

        Sql_GetData(sql_handle,12, &data, NULL);
        item->refine = atoi(data);
        Sql_GetData(sql_handle,13, &data, NULL);
        item->attribute = atoi(data);

        item->identify = 1;
        item->amount = 1;
        item->expire_time = 0;

        for (i = 0; i < MAX_SLOTS; i++) {
            Sql_GetData(sql_handle, 14 + i, &data, NULL);
            item->card[i] = atoi(data);
        }

        if (auction->timestamp > now)
            endtick = ((unsigned int)(auction->timestamp - now) * 1000) + tick;
        else
            endtick = tick + 10000; // 10 Second's to process ended auctions

        auction->auction_end_timer = add_timer(endtick, auction_end_timer, auction->auction_id, 0);
        idb_put(auction_db_, auction->auction_id, auction);
    }

    Sql_FreeResult(sql_handle);
}

static void mapif_Auction_sendlist(int fd, int char_id, short count, short pages, unsigned char *buf)
{
    int len = (sizeof(struct auction_data) * count) + 12;

    WFIFOHEAD(fd, len);
    WFIFOW(fd,0) = 0x3850;
    WFIFOW(fd,2) = len;
    WFIFOL(fd,4) = char_id;
    WFIFOW(fd,8) = count;
    WFIFOW(fd,10) = pages;
    memcpy(WFIFOP(fd,12), buf, len - 12);
    WFIFOSET(fd,len);
}

static void mapif_parse_Auction_requestlist(int fd)
{
    char searchtext[NAME_LENGTH];
    int char_id = RFIFOL(fd,4), len = sizeof(struct auction_data);
    int price = RFIFOL(fd,10);
    short type = RFIFOW(fd,8), page = max(1,RFIFOW(fd,14));
    unsigned char buf[5 * sizeof(struct auction_data)];
    DBIterator *iter = db_iterator(auction_db_);
    struct auction_data *auction;
    short i = 0, j = 0, pages = 1;

    memcpy(searchtext, RFIFOP(fd,16), NAME_LENGTH);

    for (auction = dbi_first(iter); dbi_exists(iter); auction = dbi_next(iter)) {
        if ((type == 0 && auction->type != IT_ARMOR && auction->type != IT_PETARMOR) ||
            (type == 1 && auction->type != IT_WEAPON) ||
            (type == 2 && auction->type != IT_CARD) ||
            (type == 3 && auction->type != IT_ETC) ||
            (type == 4 && !strstr(auction->item_name, searchtext)) ||
            (type == 5 && auction->price > price) ||
            (type == 6 && auction->seller_id != char_id) ||
            (type == 7 && auction->buyer_id != char_id))
            continue;

        i++;
        if (i > 5) {
            // Counting Pages of Total Results (5 Results per Page)
            pages++;
            i = 1; // First Result of This Page
        }

        if (page != pages)
            continue; // This is not the requested Page

        memcpy(WBUFP(buf, j * len), auction, len);
        j++; // Found Results
    }
    dbi_destroy(iter);

    mapif_Auction_sendlist(fd, char_id, j, pages, buf);
}

static void mapif_Auction_register(int fd, struct auction_data *auction)
{
    int len = sizeof(struct auction_data) + 4;

    WFIFOHEAD(fd,len);
    WFIFOW(fd,0) = 0x3851;
    WFIFOW(fd,2) = len;
    memcpy(WFIFOP(fd,4), auction, sizeof(struct auction_data));
    WFIFOSET(fd,len);
}

static void mapif_parse_Auction_register(int fd)
{
    struct auction_data auction;
    if (RFIFOW(fd,2) != sizeof(struct auction_data) + 4)
        return;

    memcpy(&auction, RFIFOP(fd,4), sizeof(struct auction_data));
    if (auction_count(auction.seller_id, false) < 5)
        auction.auction_id = auction_create(&auction);

    mapif_Auction_register(fd, &auction);
}

static void mapif_Auction_cancel(int fd, int char_id, unsigned char result)
{
    WFIFOHEAD(fd,7);
    WFIFOW(fd,0) = 0x3852;
    WFIFOL(fd,2) = char_id;
    WFIFOB(fd,6) = result;
    WFIFOSET(fd,7);
}

static void mapif_parse_Auction_cancel(int fd)
{
    int char_id = RFIFOL(fd,2), auction_id = RFIFOL(fd,6);
    struct auction_data *auction;

    if ((auction = (struct auction_data *)idb_get(auction_db_, auction_id)) == NULL) {
        mapif_Auction_cancel(fd, char_id, 1); // Bid Number is Incorrect
        return;
    }

    if (auction->seller_id != char_id) {
        mapif_Auction_cancel(fd, char_id, 2); // You cannot end the auction
        return;
    }

    if (auction->buyer_id > 0) {
        mapif_Auction_cancel(fd, char_id, 3); // An auction with at least one bidder cannot be canceled
        return;
    }

    mail_sendmail(0, "Auction Manager", auction->seller_id, auction->seller_name, "Auction", "Auction canceled.", 0, &auction->item);
    auction_delete(auction);

    mapif_Auction_cancel(fd, char_id, 0); // The auction has been canceled
}

static void mapif_Auction_close(int fd, int char_id, unsigned char result)
{
    WFIFOHEAD(fd,7);
    WFIFOW(fd,0) = 0x3853;
    WFIFOL(fd,2) = char_id;
    WFIFOB(fd,6) = result;
    WFIFOSET(fd,7);
}

static void mapif_parse_Auction_close(int fd)
{
    int char_id = RFIFOL(fd,2), auction_id = RFIFOL(fd,6);
    struct auction_data *auction;

    if ((auction = (struct auction_data *)idb_get(auction_db_, auction_id)) == NULL) {
        mapif_Auction_close(fd, char_id, 2); // Bid Number is Incorrect
        return;
    }

    if (auction->seller_id != char_id) {
        mapif_Auction_close(fd, char_id, 1); // You cannot end the auction
        return;
    }

    if (auction->buyer_id == 0) {
        mapif_Auction_close(fd, char_id, 1); // You cannot end the auction
        return;
    }

    // Send Money to Seller
    mail_sendmail(0, "Auction Manager", auction->seller_id, auction->seller_name, "Auction", "Auction closed.", auction->price, NULL);
    // Send Item to Buyer
    mail_sendmail(0, "Auction Manager", auction->buyer_id, auction->buyer_name, "Auction", "Auction winner.", 0, &auction->item);
    mapif_Auction_message(auction->buyer_id, 6); // You have won the auction
    auction_delete(auction);

    mapif_Auction_close(fd, char_id, 0); // You have ended the auction
}

static void mapif_Auction_bid(int fd, int char_id, int bid, unsigned char result)
{
    WFIFOHEAD(fd,11);
    WFIFOW(fd,0) = 0x3855;
    WFIFOL(fd,2) = char_id;
    WFIFOL(fd,6) = bid; // To Return Zeny
    WFIFOB(fd,10) = result;
    WFIFOSET(fd,11);
}

static void mapif_parse_Auction_bid(int fd)
{
    int char_id = RFIFOL(fd,4), bid = RFIFOL(fd,12);
    unsigned int auction_id = RFIFOL(fd,8);
    struct auction_data *auction;

    if ((auction = (struct auction_data *)idb_get(auction_db_, auction_id)) == NULL || auction->price >= bid || auction->seller_id == char_id) {
        mapif_Auction_bid(fd, char_id, bid, 0); // You have failed to bid in the auction
        return;
    }

    if (auction_count(char_id, true) > 4 && bid < auction->buynow && auction->buyer_id != char_id) {
        mapif_Auction_bid(fd, char_id, bid, 9); // You cannot place more than 5 bids at a time
        return;
    }

    if (auction->buyer_id > 0) {
        // Send Money back to the previous Buyer
        if (auction->buyer_id != char_id) {
            mail_sendmail(0, "Auction Manager", auction->buyer_id, auction->buyer_name, "Auction", "Someone has placed a higher bid.", auction->price, NULL);
            mapif_Auction_message(auction->buyer_id, 7); // You have failed to win the auction
        } else
            mail_sendmail(0, "Auction Manager", auction->buyer_id, auction->buyer_name, "Auction", "You have placed a higher bid.", auction->price, NULL);
    }

    auction->buyer_id = char_id;
    safestrncpy(auction->buyer_name, (char *)RFIFOP(fd,16), NAME_LENGTH);
    auction->price = bid;

    if (bid >= auction->buynow) {
        // Automatic won the auction
        mapif_Auction_bid(fd, char_id, bid - auction->buynow, 1); // You have successfully bid in the auction

        mail_sendmail(0, "Auction Manager", auction->buyer_id, auction->buyer_name, "Auction", "You have won the auction.", 0, &auction->item);
        mapif_Auction_message(char_id, 6); // You have won the auction
        mail_sendmail(0, "Auction Manager", auction->seller_id, auction->seller_name, "Auction", "Payment for your auction!.", auction->buynow, NULL);

        auction_delete(auction);
        return;
    }

    auction_save(auction);

    mapif_Auction_bid(fd, char_id, 0, 1); // You have successfully bid in the auction
}

/*==========================================
 * Packets From Map Server
 *------------------------------------------*/
int inter_auction_parse_frommap(int fd)
{
    switch (RFIFOW(fd,0)) {
        case 0x3050:
            mapif_parse_Auction_requestlist(fd);
            break;
        case 0x3051:
            mapif_parse_Auction_register(fd);
            break;
        case 0x3052:
            mapif_parse_Auction_cancel(fd);
            break;
        case 0x3053:
            mapif_parse_Auction_close(fd);
            break;
        case 0x3055:
            mapif_parse_Auction_bid(fd);
            break;
        default:
            return 0;
    }
    return 1;
}

int inter_auction_sql_init(void)
{
    auction_db_ = idb_alloc(DB_OPT_RELEASE_DATA);
    inter_auctions_fromsql();

    return 0;
}

void inter_auction_sql_final(void)
{
    auction_db_->destroy(auction_db_,NULL);

    return;
}