From f55cc8f36df0202cf395e7442bf355a2ac354f3e Mon Sep 17 00:00:00 2001
From: Gent <gentsemaj@live.com>
Date: Sun, 13 Sep 2020 18:54:47 -0400
Subject: [PATCH] Load vendor tables

---
 src/ItemManager.cpp |  2 ++
 src/ItemManager.hpp |  9 +++++-
 src/NPCManager.cpp  | 67 +++++++++++++++------------------------------
 src/TableData.cpp   | 11 ++++++++
 4 files changed, 43 insertions(+), 46 deletions(-)

diff --git a/src/ItemManager.cpp b/src/ItemManager.cpp
index fff60df..05e6696 100644
--- a/src/ItemManager.cpp
+++ b/src/ItemManager.cpp
@@ -7,6 +7,8 @@
 #include <string.h> // for memset() and memcmp()
 #include <assert.h>
 
+std::map<int32_t, std::vector<VendorListing>> ItemManager::VendorTables;
+
 void ItemManager::init() {
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_ITEM_MOVE, itemMoveHandler);
     REGISTER_SHARD_PACKET(P_CL2FE_REQ_PC_ITEM_DELETE, itemDeleteHandler);
diff --git a/src/ItemManager.hpp b/src/ItemManager.hpp
index cd7a302..66c9545 100644
--- a/src/ItemManager.hpp
+++ b/src/ItemManager.hpp
@@ -3,13 +3,20 @@
 #include "CNShardServer.hpp"
 #include "Player.hpp"
 
+struct VendorListing {
+    int sort, type, iID, price;
+};
+
 namespace ItemManager {
     enum class SlotType {
         EQUIP = 0,
         INVENTORY = 1,
         BANK = 3
     };
-    void init();
+    // hopefully this is fine since it's never modified after load
+    extern std::map<int32_t, std::vector<VendorListing>> VendorTables;
+
+    void init();	
 
     void itemMoveHandler(CNSocket* sock, CNPacketData* data);
     void itemDeleteHandler(CNSocket* sock, CNPacketData* data);
diff --git a/src/NPCManager.cpp b/src/NPCManager.cpp
index d1e7f76..d1876ab 100644
--- a/src/NPCManager.cpp
+++ b/src/NPCManager.cpp
@@ -102,56 +102,33 @@ void NPCManager::npcVendorTable(CNSocket* sock, CNPacketData* data) {
     if (data->size != sizeof(sP_CL2FE_REQ_PC_VENDOR_TABLE_UPDATE))
         return; // malformed packet
 
-    //sP_CL2FE_REQ_PC_VENDOR_TABLE_UPDATE* req = (sP_CL2FE_REQ_PC_VENDOR_TABLE_UPDATE*)data->buf;
+    sP_CL2FE_REQ_PC_VENDOR_TABLE_UPDATE* req = (sP_CL2FE_REQ_PC_VENDOR_TABLE_UPDATE*)data->buf;
+    
+    if (req->iVendorID != req->iNPC_ID || ItemManager::VendorTables.find(req->iNPC_ID) == ItemManager::VendorTables.end())
+        return;
+
+    std::vector<VendorListing> listings = ItemManager::VendorTables[req->iNPC_ID]; // maybe use iVendorID instead...?
+
     INITSTRUCT(sP_FE2CL_REP_PC_VENDOR_TABLE_UPDATE_SUCC, resp);
-    // TODO: data needs to be read from shopkeeper tabledata
-    // check req->iVendorID and req->iNPC_ID
 
-    // Exaple Items
-    // shirt
-    sItemBase base1;
-    base1.iID = 60;
-    base1.iOpt = 0;
-    // expire date
-    base1.iTimeLimit = 0;
-    base1.iType = 1;
+    for (int i = 0; i < 20; i++) { // 20 is the max
 
-    sItemVendor item1;
-    item1.item = base1;
-    item1.iSortNum = 0;
-    item1.iVendorID = 1;
-    // cost amount in float? (doesn't work rn, need to figure out)
-    item1.fBuyCost = 100.0;
+        if (i < listings.size()) { // check to make sure listing exists first
+            sItemBase base;
+            base.iID = listings[i].iID;
+            base.iOpt = 0;
+            base.iTimeLimit = 0;
+            base.iType = listings[i].type;
 
-    // pants
-    sItemBase base2;
-    base2.iID = 61;
-    base2.iOpt = 0;
-    base2.iTimeLimit = 0;
-    base2.iType = 2;
+            sItemVendor vItem;
+            vItem.item = base;
+            vItem.iSortNum = listings[i].sort;
+            vItem.iVendorID = req->iVendorID;
+            vItem.fBuyCost = listings[i].price;
 
-    sItemVendor item2;
-    item2.item = base2;
-    item2.iSortNum = 1;
-    item2.iVendorID = 1;
-    item2.fBuyCost = 250.0;
-
-    // shoes
-    sItemBase base3;
-    base3.iID = 51;
-    base3.iOpt = 0;
-    base3.iTimeLimit = 0;
-    base3.iType = 3;
-
-    sItemVendor item3;
-    item3.item = base3;
-    item3.iSortNum = 2;
-    item3.iVendorID = 1;
-    item3.fBuyCost = 350.0;
-
-    resp.item[0] = item1;
-    resp.item[1] = item2;
-    resp.item[2] = item3;
+            resp.item[i] = vItem;
+        }
+    }
 
     sock->sendPacket((void*)&resp, P_FE2CL_REP_PC_VENDOR_TABLE_UPDATE_SUCC, sizeof(sP_FE2CL_REP_PC_VENDOR_TABLE_UPDATE_SUCC));
 }
diff --git a/src/TableData.cpp b/src/TableData.cpp
index df367b1..711a4fa 100644
--- a/src/TableData.cpp
+++ b/src/TableData.cpp
@@ -1,6 +1,7 @@
 #include "TableData.hpp"
 #include "NPCManager.hpp"
 #include "TransportManager.hpp"
+#include "ItemManager.hpp"
 #include "settings.hpp"
 #include "MissionManager.hpp"
 
@@ -119,6 +120,16 @@ void TableData::init() {
         }
 
         std::cout << "[INFO] Loaded mission-related data" << std::endl;
+
+        // load vendor listings
+        nlohmann::json listings = xdtData["m_pVendorTable"]["m_pItemData"];
+
+        for (nlohmann::json::iterator listing = listings.begin(); listing != listings.end(); listing++) {
+            VendorListing vListing = {listing.value()["m_iSortNumber"], listing.value()["m_iItemType"], listing.value()["m_iitemID"], listing.value()["m_iSellCost"]};
+            ItemManager::VendorTables[listing.value()["m_iNpcNumber"]].push_back(vListing);
+        }
+
+        std::cout << "[INFO] Loaded " << ItemManager::VendorTables.size() << " vendor tables" << std::endl;
     }
     catch (const std::exception& err) {
         std::cerr << "[WARN] Malformed xdt.json file! Reason:" << err.what() << std::endl;