Merge pull request #30969 from ankush/fifo_queue_report

chore: fifo queue vs qty after transaction comparison report
diff --git a/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/__init__.py b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/__init__.py
diff --git a/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.js b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.js
new file mode 100644
index 0000000..0b8f496
--- /dev/null
+++ b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.js
@@ -0,0 +1,53 @@
+// Copyright (c) 2022, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+const DIFFERNCE_FIELD_NAMES = [
+	"fifo_qty_diff",
+	"fifo_value_diff",
+];
+
+frappe.query_reports["FIFO Queue vs Qty After Transaction Comparison"] = {
+	"filters": [
+		{
+			"fieldname": "item_code",
+			"fieldtype": "Link",
+			"label": "Item",
+			"options": "Item",
+			get_query: function() {
+				return {
+					filters: {is_stock_item: 1, has_serial_no: 0}
+				}
+			}
+		},
+		{
+			"fieldname": "item_group",
+			"fieldtype": "Link",
+			"label": "Item Group",
+			"options": "Item Group",
+		},
+		{
+			"fieldname": "warehouse",
+			"fieldtype": "Link",
+			"label": "Warehouse",
+			"options": "Warehouse",
+		},
+		{
+			"fieldname": "from_date",
+			"fieldtype": "Date",
+			"label": "From Posting Date",
+		},
+		{
+			"fieldname": "to_date",
+			"fieldtype": "Date",
+			"label": "From Posting Date",
+		}
+	],
+	formatter (value, row, column, data, default_formatter) {
+		value = default_formatter(value, row, column, data);
+		if (DIFFERNCE_FIELD_NAMES.includes(column.fieldname) && Math.abs(data[column.fieldname]) > 0.001) {
+			value = "<span style='color:red'>" + value + "</span>";
+		}
+		return value;
+	},
+};
diff --git a/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.json b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.json
new file mode 100644
index 0000000..5e958aa
--- /dev/null
+++ b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.json
@@ -0,0 +1,27 @@
+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2022-05-11 04:09:13.460652",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "letter_head": "abc",
+ "modified": "2022-05-11 04:09:20.232177",
+ "modified_by": "Administrator",
+ "module": "Stock",
+ "name": "FIFO Queue vs Qty After Transaction Comparison",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Stock Ledger Entry",
+ "report_name": "FIFO Queue vs Qty After Transaction Comparison",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "Administrator"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.py b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.py
new file mode 100644
index 0000000..9e14033
--- /dev/null
+++ b/erpnext/stock/report/fifo_queue_vs_qty_after_transaction_comparison/fifo_queue_vs_qty_after_transaction_comparison.py
@@ -0,0 +1,212 @@
+# Copyright (c) 2022, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import json
+
+import frappe
+from frappe import _
+from frappe.utils import flt
+from frappe.utils.nestedset import get_descendants_of
+
+SLE_FIELDS = (
+	"name",
+	"item_code",
+	"warehouse",
+	"posting_date",
+	"posting_time",
+	"creation",
+	"voucher_type",
+	"voucher_no",
+	"actual_qty",
+	"qty_after_transaction",
+	"stock_queue",
+	"batch_no",
+	"stock_value",
+	"valuation_rate",
+)
+
+
+def execute(filters=None):
+	columns = get_columns()
+	data = get_data(filters)
+	return columns, data
+
+
+def get_data(filters):
+	if not any([filters.warehouse, filters.item_code, filters.item_group]):
+		frappe.throw(_("Any one of following filters required: warehouse, Item Code, Item Group"))
+	sles = get_stock_ledger_entries(filters)
+	return find_first_bad_queue(sles)
+
+
+def get_stock_ledger_entries(filters):
+
+	sle_filters = {"is_cancelled": 0}
+
+	if filters.warehouse:
+		children = get_descendants_of("Warehouse", filters.warehouse)
+		sle_filters["warehouse"] = ("in", children + [filters.warehouse])
+
+	if filters.item_code:
+		sle_filters["item_code"] = filters.item_code
+	elif filters.get("item_group"):
+		item_group = filters.get("item_group")
+		children = get_descendants_of("Item Group", item_group)
+		item_group_filter = {"item_group": ("in", children + [item_group])}
+		sle_filters["item_code"] = (
+			"in",
+			frappe.get_all("Item", filters=item_group_filter, pluck="name", order_by=None),
+		)
+
+	if filters.from_date:
+		sle_filters["posting_date"] = (">=", filters.from_date)
+	if filters.to_date:
+		sle_filters["posting_date"] = ("<=", filters.to_date)
+
+	return frappe.get_all(
+		"Stock Ledger Entry",
+		fields=SLE_FIELDS,
+		filters=sle_filters,
+		order_by="timestamp(posting_date, posting_time), creation",
+	)
+
+
+def find_first_bad_queue(sles):
+	item_warehouse_sles = {}
+	for sle in sles:
+		item_warehouse_sles.setdefault((sle.item_code, sle.warehouse), []).append(sle)
+
+	data = []
+
+	for _item_wh, sles in item_warehouse_sles.items():
+		for idx, sle in enumerate(sles):
+			queue = json.loads(sle.stock_queue or "[]")
+
+			sle.fifo_queue_qty = 0.0
+			sle.fifo_stock_value = 0.0
+			for qty, rate in queue:
+				sle.fifo_queue_qty += flt(qty)
+				sle.fifo_stock_value += flt(qty) * flt(rate)
+
+			sle.fifo_qty_diff = sle.qty_after_transaction - sle.fifo_queue_qty
+			sle.fifo_value_diff = sle.stock_value - sle.fifo_stock_value
+
+			if sle.batch_no:
+				sle.use_batchwise_valuation = frappe.db.get_value(
+					"Batch", sle.batch_no, "use_batchwise_valuation", cache=True
+				)
+
+			if abs(sle.fifo_qty_diff) > 0.001 or abs(sle.fifo_value_diff) > 0.1:
+				if idx:
+					data.append(sles[idx - 1])
+				data.append(sle)
+				data.append({})
+				break
+
+	return data
+
+
+def get_columns():
+	return [
+		{
+			"fieldname": "name",
+			"fieldtype": "Link",
+			"label": _("Stock Ledger Entry"),
+			"options": "Stock Ledger Entry",
+		},
+		{
+			"fieldname": "item_code",
+			"fieldtype": "Link",
+			"label": _("Item Code"),
+			"options": "Item",
+		},
+		{
+			"fieldname": "warehouse",
+			"fieldtype": "Link",
+			"label": _("Warehouse"),
+			"options": "Warehouse",
+		},
+		{
+			"fieldname": "posting_date",
+			"fieldtype": "Data",
+			"label": _("Posting Date"),
+		},
+		{
+			"fieldname": "posting_time",
+			"fieldtype": "Data",
+			"label": _("Posting Time"),
+		},
+		{
+			"fieldname": "creation",
+			"fieldtype": "Data",
+			"label": _("Creation"),
+		},
+		{
+			"fieldname": "voucher_type",
+			"fieldtype": "Link",
+			"label": _("Voucher Type"),
+			"options": "DocType",
+		},
+		{
+			"fieldname": "voucher_no",
+			"fieldtype": "Dynamic Link",
+			"label": _("Voucher No"),
+			"options": "voucher_type",
+		},
+		{
+			"fieldname": "batch_no",
+			"fieldtype": "Link",
+			"label": _("Batch"),
+			"options": "Batch",
+		},
+		{
+			"fieldname": "use_batchwise_valuation",
+			"fieldtype": "Check",
+			"label": _("Batchwise Valuation"),
+		},
+		{
+			"fieldname": "actual_qty",
+			"fieldtype": "Float",
+			"label": _("Qty Change"),
+		},
+		{
+			"fieldname": "qty_after_transaction",
+			"fieldtype": "Float",
+			"label": _("(A) Qty After Transaction"),
+		},
+		{
+			"fieldname": "stock_queue",
+			"fieldtype": "Data",
+			"label": _("FIFO/LIFO Queue"),
+		},
+		{
+			"fieldname": "fifo_queue_qty",
+			"fieldtype": "Float",
+			"label": _("(C) Total qty in queue"),
+		},
+		{
+			"fieldname": "fifo_qty_diff",
+			"fieldtype": "Float",
+			"label": _("A - C"),
+		},
+		{
+			"fieldname": "stock_value",
+			"fieldtype": "Float",
+			"label": _("(D) Balance Stock Value"),
+		},
+		{
+			"fieldname": "fifo_stock_value",
+			"fieldtype": "Float",
+			"label": _("(E) Balance Stock Value in Queue"),
+		},
+		{
+			"fieldname": "fifo_value_diff",
+			"fieldtype": "Float",
+			"label": _("D - E"),
+		},
+		{
+			"fieldname": "valuation_rate",
+			"fieldtype": "Float",
+			"label": _("(H) Valuation Rate"),
+		},
+	]
diff --git a/erpnext/stock/report/test_reports.py b/erpnext/stock/report/test_reports.py
index 55b9104..d118d8e 100644
--- a/erpnext/stock/report/test_reports.py
+++ b/erpnext/stock/report/test_reports.py
@@ -65,6 +65,8 @@
 	("Delayed Item Report", {"based_on": "Delivery Note"}),
 	("Stock Ageing", {"range1": 30, "range2": 60, "range3": 90, "_optional": True}),
 	("Stock Ledger Invariant Check", {"warehouse": "_Test Warehouse - _TC", "item": "_Test Item"}),
+	("FIFO Queue vs Qty After Transaction Comparison", {"warehouse": "_Test Warehouse - _TC"}),
+	("FIFO Queue vs Qty After Transaction Comparison", {"item_group": "All Item Groups"}),
 ]
 
 OPTIONAL_FILTERS = {