feat: batchwise filters in stock ledger and stock balance

reports/inventory/StockBalance.ts

@@ -25,9 +25,11 @@ export class StockBalance extends StockLedger {
     const filters = {
       item: this.item,
       location: this.location,
+      batch: this.batch,
       fromDate: this.fromDate,
       toDate: this.toDate,
     };
+
     const rawData = getStockBalanceEntries(this._rawData ?? [], filters);
 
     return rawData.map((sbe, i) => {
@@ -41,7 +43,7 @@ export class StockBalance extends StockLedger {
   }
 
   getFilters(): Field[] {
-    return [
+    const filters = [
       {
         fieldtype: 'Link',
         target: 'Item',
@@ -56,6 +58,17 @@ export class StockBalance extends StockLedger {
         label: t`Location`,
         fieldname: 'location',
       },
+      ...(this.hasBatches
+        ? [
+            {
+              fieldtype: 'Link',
+              target: 'BatchNumber',
+              placeholder: t`Batch`,
+              label: t`Batch`,
+              fieldname: 'batch',
+            },
+          ]
+        : []),
       {
         fieldtype: 'Date',
         placeholder: t`From Date`,
@@ -69,6 +82,8 @@ export class StockBalance extends StockLedger {
         fieldname: 'toDate',
       },
     ] as Field[];
+
+    return filters;
   }
 
   getColumns(): ColumnField[] {
@@ -89,6 +104,11 @@ export class StockBalance extends StockLedger {
         label: 'Location',
         fieldtype: 'Link',
       },
+      ...(this.hasBatches
+        ? ([
+            { fieldname: 'batch', label: 'Batch', fieldtype: 'Link' },
+          ] as ColumnField[])
+        : []),
       {
         fieldname: 'balanceQuantity',
         label: 'Balance Qty.',

reports/inventory/StockLedger.ts

@@ -3,6 +3,7 @@ import { RawValueMap } from 'fyo/core/types';
 import { Action } from 'fyo/model/types';
 import { cloneDeep } from 'lodash';
 import { DateTime } from 'luxon';
+import { InventorySettings } from 'models/inventory/InventorySettings';
 import { ValuationMethod } from 'models/inventory/types';
 import { ModelNameEnum } from 'models/types';
 import getCommonExportActions from 'reports/commonExporter';
@@ -26,6 +27,7 @@ export class StockLedger extends Report {
 
   item?: string;
   location?: string;
+  batch?: string;
   fromDate?: string;
   toDate?: string;
   ascending?: boolean;
@@ -34,6 +36,11 @@ export class StockLedger extends Report {
 
   groupBy: 'none' | 'item' | 'location' = 'none';
 
+  get hasBatches(): boolean {
+    return !!(this.fyo.singles.InventorySettings as InventorySettings)
+      .enableBatches;
+  }
+
   constructor(fyo: Fyo) {
     super(fyo);
     this._setObservers();
@@ -110,6 +117,10 @@ export class StockLedger extends Report {
         continue;
       }
 
+      if (this.batch && row.batchNumber !== this.batch) {
+        continue;
+      }
+
       const date = row.date.valueOf();
       if (toDate && date > toDate) {
         continue;
@@ -260,11 +271,11 @@ export class StockLedger extends Report {
         label: 'Location',
         fieldtype: 'Link',
       },
-      {
+      ...(this.hasBatches
-        fieldname: 'batchNumber',
+        ? ([
-        label: 'Batch No.',
+            { fieldname: 'batch', label: 'Batch', fieldtype: 'Link' },
-        fieldtype: 'Link',
+          ] as ColumnField[])
-      },
+        : []),
       {
         fieldname: 'quantity',
         label: 'Quantity',
@@ -344,6 +355,17 @@ export class StockLedger extends Report {
         label: t`Location`,
         fieldname: 'location',
       },
+      ...(this.hasBatches
+        ? ([
+            {
+              fieldtype: 'Link',
+              target: 'BatchNumber',
+              placeholder: t`Batch`,
+              label: t`Batch`,
+              fieldname: 'batch',
+            },
+          ] as Field[])
+        : []),
       {
         fieldtype: 'Date',
         placeholder: t`From Date`,

reports/inventory/helpers.ts

@@ -117,7 +117,10 @@ export function getStockBalanceEntries(
     toDate?: string;
   }
 ): StockBalanceEntry[] {
-  const sbeMap: Record<Item, Record<Location, StockBalanceEntry>> = {};
+  const sbeMap: Record<
+    Item,
+    Record<Location, Record<BatchNo, StockBalanceEntry>>
+  > = {};
 
   const fromDate = filters.fromDate ? Date.parse(filters.fromDate) : null;
   const toDate = filters.toDate ? Date.parse(filters.toDate) : null;
@@ -131,16 +134,19 @@ export function getStockBalanceEntries(
       continue;
     }
 
+    const batchNumber = sle.batchNumber || '';
+
     sbeMap[sle.item] ??= {};
-    sbeMap[sle.item][sle.location] ??= getSBE(
+    sbeMap[sle.item][sle.location] ??= {};
+    sbeMap[sle.item][sle.location][batchNumber] ??= getSBE(
       sle.item,
       sle.location,
-      sle.batchNumber
+      batchNumber
     );
     const date = sle.date.valueOf();
 
     if (fromDate && date < fromDate) {
-      const sbe = sbeMap[sle.item][sle.location]!;
+      const sbe = sbeMap[sle.item][sle.location][batchNumber];
       updateOpeningBalances(sbe, sle);
       continue;
     }
@@ -149,13 +155,15 @@ export function getStockBalanceEntries(
       continue;
     }
 
-    const sbe = sbeMap[sle.item][sle.location]!;
+    const sbe = sbeMap[sle.item][sle.location][batchNumber];
     updateCurrentBalances(sbe, sle);
   }
 
   return Object.values(sbeMap)
-    .map((sbes) => Object.values(sbes))
+    .map((sbeBatched) =>
-    .flat();
+      Object.values(sbeBatched).map((sbes) => Object.values(sbes))
+    )
+    .flat(2);
 }
 
 function getSBE(