From a79a5f7aecbeb081aa1c83a654686ac345262803 Mon Sep 17 00:00:00 2001
From: Dev <dev@dev.sp-tarkov.com>
Date: Thu, 20 Jul 2023 12:00:24 +0100
Subject: [PATCH] Allow modders to set item min/max stack size limits for any
 item on fence

---
 project/assets/configs/trader.json            |  4 +++
 .../src/models/spt/config/ITraderConfig.ts    |  2 ++
 project/src/services/FenceService.ts          | 26 ++++++++++++++++++-
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/project/assets/configs/trader.json b/project/assets/configs/trader.json
index 8cf5f629..067c80c8 100644
--- a/project/assets/configs/trader.json
+++ b/project/assets/configs/trader.json
@@ -86,6 +86,10 @@
             "min": 35,
             "max": 60
         },
+		"itemStackSizeOverrideMinMax":
+		{
+			"59e690b686f7746c9f75e848": {"min": 5, "max": 15}
+		},
         "blacklist": [
             "5661632d4bdc2d903d8b456b",
             "543be5e94bdc2df1348b4568",
diff --git a/project/src/models/spt/config/ITraderConfig.ts b/project/src/models/spt/config/ITraderConfig.ts
index ae9b28fa..8e8922c9 100644
--- a/project/src/models/spt/config/ITraderConfig.ts
+++ b/project/src/models/spt/config/ITraderConfig.ts
@@ -30,6 +30,8 @@ export interface FenceConfig
     presetPriceMult: number
     armorMaxDurabilityPercentMinMax: MinMax
     presetMaxDurabilityPercentMinMax: MinMax
+    /** Key: item tpl */
+    itemStackSizeOverrideMinMax: Record<string, MinMax>
     itemTypeLimits: Record<string, number>
     regenerateAssortsOnRefresh: boolean
     blacklist: string[]
diff --git a/project/src/services/FenceService.ts b/project/src/services/FenceService.ts
index 664f9feb..78997d42 100644
--- a/project/src/services/FenceService.ts
+++ b/project/src/services/FenceService.ts
@@ -428,7 +428,7 @@ export class FenceService
 
                 this.randomiseItemUpdProperties(itemDbDetails, toPush);
 
-                toPush.upd.StackObjectsCount = 1;
+                toPush.upd.StackObjectsCount = this.getSingleItemStackCount(itemDbDetails);
                 toPush.upd.BuyRestrictionCurrent = 0;
                 toPush.upd.UnlimitedCount = false;
 
@@ -440,6 +440,30 @@ export class FenceService
         }
     }
 
+    /**
+     * Get stack size ofr a singular item (no mods)
+     * @param itemDbDetails item being added to fence
+     * @returns Stack size
+     */
+    protected getSingleItemStackCount(itemDbDetails: ITemplateItem): number
+    {
+        // Check for override in config, use values if exists
+        const overrideValues = this.traderConfig.fence.itemStackSizeOverrideMinMax[itemDbDetails._id];
+        if (overrideValues)
+        {
+            return this.randomUtil.getInt(overrideValues.min, overrideValues.max);
+        }
+
+        // Fence doesn't sell ammo by default, but handle it as players mod fence
+        if (this.itemHelper.isOfBaseclass(itemDbDetails._id, BaseClasses.AMMO))
+        {
+            // No override, use stack max size from item db
+            return this.randomUtil.getInt(1, itemDbDetails._props.StackMaxSize);
+        }
+        
+        return 1;
+    }
+
     /**
      * Add preset weapons to fence presets
      * @param assortCount how many assorts to add to assorts