1 files changed, 405 insertions, 0 deletions
diff --git a/src/map/searchstore.c b/src/map/searchstore.c
new file mode 100644
index 000000000..d7378ab36
--- /dev/null
+++ b/src/map/searchstore.c
@@ -0,0 +1,405 @@
+// Copyright (c) Athena Dev Teams - Licensed under GNU GPL
+// For more information, see LICENCE in the main folder
+
+#include "../common/cbasetypes.h"
+#include "../common/malloc.h"  // aMalloc, aRealloc, aFree
+#include "../common/showmsg.h"  // ShowError, ShowWarning
+#include "../common/strlib.h"  // safestrncpy
+#include "battle.h"  // battle_config.*
+#include "clif.h"  // clif_open_search_store_info, clif_search_store_info_*
+#include "pc.h"  // struct map_session_data
+#include "searchstore.h"  // struct s_search_store_info
+
+
+/// failure constants for clif functions
+enum e_searchstore_failure
+{
+	SSI_FAILED_NOTHING_SEARCH_ITEM         = 0,  // "No matching stores were found."
+	SSI_FAILED_OVER_MAXCOUNT               = 1,  // "There are too many results. Please enter more detailed search term."
+	SSI_FAILED_SEARCH_CNT                  = 2,  // "You cannot search anymore."
+	SSI_FAILED_LIMIT_SEARCH_TIME           = 3,  // "You cannot search yet."
+	SSI_FAILED_SSILIST_CLICK_TO_OPEN_STORE = 4,  // "No sale (purchase) information available."
+};
+
+
+enum e_searchstore_searchtype
+{
+	SEARCHTYPE_VENDING      = 0,
+	SEARCHTYPE_BUYING_STORE = 1,
+};
+
+
+enum e_searchstore_effecttype
+{
+	EFFECTTYPE_NORMAL = 0,
+	EFFECTTYPE_CASH   = 1,
+	EFFECTTYPE_MAX
+};
+
+
+/// type for shop search function
+typedef bool (*searchstore_search_t)(struct map_session_data* sd, unsigned short nameid);
+typedef bool (*searchstore_searchall_t)(struct map_session_data* sd, const struct s_search_store_search* s);
+
+
+/// retrieves search function by type
+static searchstore_search_t searchstore_getsearchfunc(unsigned char type)
+{
+	switch( type )
+	{
+		case SEARCHTYPE_VENDING:      return &vending_search;
+		case SEARCHTYPE_BUYING_STORE: return &buyingstore_search;
+	}
+	return NULL;
+}
+
+
+/// retrieves search-all function by type
+static searchstore_searchall_t searchstore_getsearchallfunc(unsigned char type)
+{
+	switch( type )
+	{
+		case SEARCHTYPE_VENDING:      return &vending_searchall;
+		case SEARCHTYPE_BUYING_STORE: return &buyingstore_searchall;
+	}
+	return NULL;
+}
+
+
+/// checks if the player has a store by type
+static bool searchstore_hasstore(struct map_session_data* sd, unsigned char type)
+{
+	switch( type )
+	{
+		case SEARCHTYPE_VENDING:      return (bool)( sd->vender_id != 0 );
+		case SEARCHTYPE_BUYING_STORE: return sd->state.buyingstore;
+	}
+	return false;
+}
+
+
+/// returns player's store id by type
+static int searchstore_getstoreid(struct map_session_data* sd, unsigned char type)
+{
+	switch( type )
+	{
+		case SEARCHTYPE_VENDING:      return sd->vender_id;
+		case SEARCHTYPE_BUYING_STORE: return sd->buyer_id;
+	}
+	return 0;
+}
+
+
+bool searchstore_open(struct map_session_data* sd, unsigned int uses, unsigned short effect)
+{
+	if( !battle_config.feature_search_stores || sd->searchstore.open )
+	{
+		return false;
+	}
+
+	if( !uses || effect >= EFFECTTYPE_MAX )
+	{// invalid input
+		return false;
+	}
+
+	sd->searchstore.open   = true;
+	sd->searchstore.uses   = uses;
+	sd->searchstore.effect = effect;
+
+	clif_open_search_store_info(sd);
+
+	return true;
+}
+
+
+void searchstore_query(struct map_session_data* sd, unsigned char type, unsigned int min_price, unsigned int max_price, const unsigned short* itemlist, unsigned int item_count, const unsigned short* cardlist, unsigned int card_count)
+{
+	unsigned int i;
+	struct map_session_data* pl_sd;
+	struct s_mapiterator* iter;
+	struct s_search_store_search s;
+	searchstore_searchall_t store_searchall;
+	time_t querytime;
+
+	if( !battle_config.feature_search_stores )
+	{
+		return;
+	}
+
+	if( !sd->searchstore.open )
+	{
+		return;
+	}
+
+	if( ( store_searchall = searchstore_getsearchallfunc(type) ) == NULL )
+	{
+		ShowError("searchstore_query: Unknown search type %u (account_id=%d).\n", (unsigned int)type, sd->bl.id);
+		return;
+	}
+
+	time(&querytime);
+
+	if( sd->searchstore.nextquerytime > querytime )
+	{
+		clif_search_store_info_failed(sd, SSI_FAILED_LIMIT_SEARCH_TIME);
+		return;
+	}
+
+	if( !sd->searchstore.uses )
+	{
+		clif_search_store_info_failed(sd, SSI_FAILED_SEARCH_CNT);
+		return;
+	}
+
+	// validate lists
+	for( i = 0; i < item_count; i++ )
+	{
+		if( !itemdb_exists(itemlist[i]) )
+		{
+			ShowWarning("searchstore_query: Client resolved item %hu is not known.\n", itemlist[i]);
+			clif_search_store_info_failed(sd, SSI_FAILED_NOTHING_SEARCH_ITEM);
+			return;
+		}
+	}
+	for( i = 0; i < card_count; i++ )
+	{
+		if( !itemdb_exists(cardlist[i]) )
+		{
+			ShowWarning("searchstore_query: Client resolved card %hu is not known.\n", cardlist[i]);
+			clif_search_store_info_failed(sd, SSI_FAILED_NOTHING_SEARCH_ITEM);
+			return;
+		}
+	}
+
+	if( max_price < min_price )
+	{
+		swap(min_price, max_price);
+	}
+
+	sd->searchstore.uses--;
+	sd->searchstore.type = type;
+	sd->searchstore.nextquerytime = querytime+battle_config.searchstore_querydelay;
+
+	// drop previous results
+	searchstore_clear(sd);
+
+	// allocate max. amount of results
+	sd->searchstore.items = aMalloc(sizeof(struct s_search_store_info_item)*battle_config.searchstore_maxresults);
+
+	// search
+	s.search_sd  = sd;
+	s.itemlist   = itemlist;
+	s.cardlist   = cardlist;
+	s.item_count = item_count;
+	s.card_count = card_count;
+	s.min_price  = min_price;
+	s.max_price  = max_price;
+	iter         = mapit_geteachpc();
+
+	for( pl_sd = (struct map_session_data*)mapit_first(iter); mapit_exists(iter);  pl_sd = (struct map_session_data*)mapit_next(iter) )
+	{
+		if( sd == pl_sd )
+		{// skip own shop, if any
+			continue;
+		}
+
+		if( !store_searchall(pl_sd, &s) )
+		{// exceeded result size
+			clif_search_store_info_failed(sd, SSI_FAILED_OVER_MAXCOUNT);
+			break;
+		}
+	}
+
+	mapit_free(iter);
+
+	if( sd->searchstore.count )
+	{
+		// reclaim unused memory
+		sd->searchstore.items = aRealloc(sd->searchstore.items, sizeof(struct s_search_store_info_item)*sd->searchstore.count);
+
+		// present results
+		clif_search_store_info_ack(sd);
+
+		// one page displayed
+		sd->searchstore.pages++;
+	}
+	else
+	{
+		// cleanup
+		searchstore_clear(sd);
+
+		// update uses
+		clif_search_store_info_ack(sd);
+
+		// notify of failure
+		clif_search_store_info_failed(sd, SSI_FAILED_NOTHING_SEARCH_ITEM);
+	}
+}
+
+
+/// checks whether or not more results are available for the client
+bool searchstore_querynext(struct map_session_data* sd)
+{
+	if( sd->searchstore.count && ( sd->searchstore.count-1 )/SEARCHSTORE_RESULTS_PER_PAGE < sd->searchstore.pages )
+	{
+		return true;
+	}
+
+	return false;
+}
+
+
+void searchstore_next(struct map_session_data* sd)
+{
+	if( !battle_config.feature_search_stores || !sd->searchstore.open || sd->searchstore.count <= sd->searchstore.pages*SEARCHSTORE_RESULTS_PER_PAGE )
+	{// nothing (more) to display
+		return;
+	}
+
+	// present results
+	clif_search_store_info_ack(sd);
+
+	// one more page displayed
+	sd->searchstore.pages++;
+}
+
+
+void searchstore_clear(struct map_session_data* sd)
+{
+	searchstore_clearremote(sd);
+
+	if( sd->searchstore.items )
+	{// release results
+		aFree(sd->searchstore.items);
+		sd->searchstore.items = NULL;
+	}
+
+	sd->searchstore.count = 0;
+	sd->searchstore.pages = 0;
+}
+
+
+void searchstore_close(struct map_session_data* sd)
+{
+	if( sd->searchstore.open )
+	{
+		searchstore_clear(sd);
+
+		sd->searchstore.uses = 0;
+		sd->searchstore.open = false;
+	}
+}
+
+
+void searchstore_click(struct map_session_data* sd, int account_id, int store_id, unsigned short nameid)
+{
+	unsigned int i;
+	struct map_session_data* pl_sd;
+	searchstore_search_t store_search;
+
+	if( !battle_config.feature_search_stores || !sd->searchstore.open || !sd->searchstore.count )
+	{
+		return;
+	}
+
+	searchstore_clearremote(sd);
+
+	ARR_FIND( 0, sd->searchstore.count, i,  sd->searchstore.items[i].store_id == store_id && sd->searchstore.items[i].account_id == account_id && sd->searchstore.items[i].nameid == nameid );
+	if( i == sd->searchstore.count )
+	{// no such result, crafted
+		ShowWarning("searchstore_click: Received request with item %hu of account %d, which is not part of current result set (account_id=%d, char_id=%d).\n", nameid, account_id, sd->bl.id, sd->status.char_id);
+		clif_search_store_info_failed(sd, SSI_FAILED_SSILIST_CLICK_TO_OPEN_STORE);
+		return;
+	}
+
+	if( ( pl_sd = map_id2sd(account_id) ) == NULL )
+	{// no longer online
+		clif_search_store_info_failed(sd, SSI_FAILED_SSILIST_CLICK_TO_OPEN_STORE);
+		return;
+	}
+
+	if( !searchstore_hasstore(pl_sd, sd->searchstore.type) || searchstore_getstoreid(pl_sd, sd->searchstore.type) != store_id )
+	{// no longer vending/buying or not same shop
+		clif_search_store_info_failed(sd, SSI_FAILED_SSILIST_CLICK_TO_OPEN_STORE);
+		return;
+	}
+
+	store_search = searchstore_getsearchfunc(sd->searchstore.type);
+
+	if( !store_search(pl_sd, nameid) )
+	{// item no longer being sold/bought
+		clif_search_store_info_failed(sd, SSI_FAILED_SSILIST_CLICK_TO_OPEN_STORE);
+		return;
+	}
+
+	switch( sd->searchstore.effect )
+	{
+		case EFFECTTYPE_NORMAL:
+			// display coords
+
+			if( sd->bl.m != pl_sd->bl.m )
+			{// not on same map, wipe previous marker
+				clif_search_store_info_click_ack(sd, -1, -1);
+			}
+			else
+			{
+				clif_search_store_info_click_ack(sd, pl_sd->bl.x, pl_sd->bl.y);
+			}
+
+			break;
+		case EFFECTTYPE_CASH:
+			// open remotely
+
+			// to bypass range checks
+			sd->searchstore.remote_id = account_id;
+
+			switch( sd->searchstore.type )
+			{
+				case SEARCHTYPE_VENDING:      vending_vendinglistreq(sd, account_id); break;
+				case SEARCHTYPE_BUYING_STORE: buyingstore_open(sd, account_id);       break;
+			}
+
+			break;
+		default:
+			// unknown
+			ShowError("searchstore_click: Unknown search store effect %u (account_id=%d).\n", (unsigned int)sd->searchstore.effect, sd->bl.id);
+	}
+}
+
+
+/// checks whether or not sd has opened account_id's shop remotely
+bool searchstore_queryremote(struct map_session_data* sd, int account_id)
+{
+	return (bool)( sd->searchstore.open && sd->searchstore.count && sd->searchstore.remote_id == account_id );
+}
+
+
+/// removes range-check bypassing for remotely opened stores
+void searchstore_clearremote(struct map_session_data* sd)
+{
+	sd->searchstore.remote_id = 0;
+}
+
+
+/// receives results from a store-specific callback
+bool searchstore_result(struct map_session_data* sd, int store_id, int account_id, const char* store_name, unsigned short nameid, unsigned short amount, unsigned int price, const short* card, unsigned char refine)
+{
+	struct s_search_store_info_item* ssitem;
+
+	if( sd->searchstore.count >= (unsigned int)battle_config.searchstore_maxresults )
+	{// no more
+		return false;
+	}
+
+	ssitem = &sd->searchstore.items[sd->searchstore.count++];
+	ssitem->store_id = store_id;
+	ssitem->account_id = account_id;
+	safestrncpy(ssitem->store_name, store_name, sizeof(ssitem->store_name));
+	ssitem->nameid = nameid;
+	ssitem->amount = amount;
+	ssitem->price = price;
+	memcpy(ssitem->card, card, sizeof(ssitem->card));
+	ssitem->refine = refine;
+
+	return true;
+}