feat: Bank remittance report for tracking payroll-entry transactions (#17013)

* feat: Bank remittance report for tracking payroll-entry transactions

* feat: show Company bank account and bank name

* feat: Added Permissions to view report

* feat: Validated report only if debit account is present

* fix: query optimisation

* feat: Added From date and To date filters

* fix: code optimisation

* fix: requested changes

* fix: requested changes and refactor

* style: indentation

* style: Formatting

* fix: added parameter filters
diff --git a/erpnext/hr/doctype/payroll_entry/payroll_entry.json b/erpnext/hr/doctype/payroll_entry/payroll_entry.json
index 562b999..d51684f 100644
--- a/erpnext/hr/doctype/payroll_entry/payroll_entry.json
+++ b/erpnext/hr/doctype/payroll_entry/payroll_entry.json
@@ -21,6 +21,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break0", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -53,6 +54,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break0", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -86,6 +88,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "default": "Today", 
+   "fetch_if_empty": 0, 
    "fieldname": "posting_date", 
    "fieldtype": "Date", 
    "hidden": 0, 
@@ -120,6 +123,7 @@
    "columns": 0, 
    "default": "", 
    "depends_on": "eval:doc.salary_slip_based_on_timesheet == 0", 
+   "fetch_if_empty": 0, 
    "fieldname": "payroll_frequency", 
    "fieldtype": "Select", 
    "hidden": 0, 
@@ -153,6 +157,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break1", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -186,6 +191,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "default": "", 
+   "fetch_if_empty": 0, 
    "fieldname": "company", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -220,6 +226,7 @@
    "collapsible": 0, 
    "collapsible_depends_on": "", 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break_8", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -252,6 +259,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "branch", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -285,6 +293,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "department", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -318,6 +327,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break_10", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -349,6 +359,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "designation", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -382,6 +393,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "number_of_employees", 
    "fieldtype": "Int", 
    "hidden": 0, 
@@ -414,6 +426,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "sec_break20", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -445,6 +458,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "employees", 
    "fieldtype": "Table", 
    "hidden": 0, 
@@ -478,6 +492,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break_13", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -509,6 +524,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "validate_attendance", 
    "fieldtype": "Check", 
    "hidden": 0, 
@@ -541,6 +557,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "attendance_detail_html", 
    "fieldtype": "HTML", 
    "hidden": 0, 
@@ -572,6 +589,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break_12", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -604,6 +622,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "default": "0", 
+   "fetch_if_empty": 0, 
    "fieldname": "salary_slip_based_on_timesheet", 
    "fieldtype": "Check", 
    "hidden": 0, 
@@ -637,6 +656,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "select_payroll_period", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -670,6 +690,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "default": "", 
+   "fetch_if_empty": 0, 
    "fieldname": "start_date", 
    "fieldtype": "Date", 
    "hidden": 0, 
@@ -703,6 +724,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "default": "", 
+   "fetch_if_empty": 0, 
    "fieldname": "end_date", 
    "fieldtype": "Date", 
    "hidden": 0, 
@@ -735,6 +757,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break_11", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -766,6 +789,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "deduct_tax_for_unclaimed_employee_benefits", 
    "fieldtype": "Check", 
    "hidden": 0, 
@@ -798,6 +822,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "deduct_tax_for_unsubmitted_tax_exemption_proof", 
    "fieldtype": "Check", 
    "hidden": 0, 
@@ -830,6 +855,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break_16", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -864,6 +890,7 @@
    "columns": 0, 
    "default": ":Company", 
    "fetch_from": "", 
+   "fetch_if_empty": 0, 
    "fieldname": "cost_center", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -897,6 +924,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break_18", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -928,6 +956,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "project", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -961,6 +990,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "column_break2", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
@@ -993,6 +1023,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "account", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -1026,6 +1057,7 @@
    "collapsible": 0, 
    "columns": 0, 
    "description": "Select Payment Account to make Bank Entry", 
+   "fetch_if_empty": 0, 
    "fieldname": "payment_account", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -1059,6 +1091,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "section_break2", 
    "fieldtype": "Section Break", 
    "hidden": 0, 
@@ -1090,6 +1123,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "amended_from", 
    "fieldtype": "Link", 
    "hidden": 0, 
@@ -1122,6 +1156,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "salary_slips_created", 
    "fieldtype": "Check", 
    "hidden": 1, 
@@ -1154,6 +1189,7 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fetch_if_empty": 0, 
    "fieldname": "salary_slips_submitted", 
    "fieldtype": "Check", 
    "hidden": 1, 
@@ -1181,17 +1217,16 @@
   }
  ], 
  "has_web_view": 0, 
- "hide_heading": 0, 
  "hide_toolbar": 0, 
  "icon": "fa fa-cog", 
  "idx": 0, 
- "image_view": 0, 
  "in_create": 0, 
  "is_submittable": 1, 
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2019-02-05 10:41:08.865842", 
+ "menu_index": 0, 
+ "modified": "2019-03-26 16:55:04.158800", 
  "modified_by": "Administrator", 
  "module": "HR", 
  "name": "Payroll Entry", 
@@ -1210,7 +1245,7 @@
    "permlevel": 0, 
    "print": 0, 
    "read": 1, 
-   "report": 0, 
+   "report": 1, 
    "role": "HR Manager", 
    "set_user_permissions": 0, 
    "share": 1, 
@@ -1220,7 +1255,6 @@
  ], 
  "quick_entry": 0, 
  "read_only": 0, 
- "read_only_onload": 0, 
  "show_name_in_global_search": 0, 
  "sort_field": "modified", 
  "sort_order": "DESC", 
diff --git a/erpnext/hr/report/bank_remittance/__init__.py b/erpnext/hr/report/bank_remittance/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/hr/report/bank_remittance/__init__.py
diff --git a/erpnext/hr/report/bank_remittance/bank_remittance.js b/erpnext/hr/report/bank_remittance/bank_remittance.js
new file mode 100644
index 0000000..1e10f24
--- /dev/null
+++ b/erpnext/hr/report/bank_remittance/bank_remittance.js
@@ -0,0 +1,28 @@
+// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+frappe.query_reports["Bank Remittance"] = {
+	"filters": [
+		{
+			"fieldname":"company",
+			"label": __("Company"),
+			"fieldtype": "Link",
+			"options": "Company",
+			"default": frappe.defaults.get_user_default("Company"),
+			"reqd": 1
+		},
+		{
+			fieldname:"from_date",
+			label: __("From Date"),
+			fieldtype: "Date",
+		},
+		{
+			fieldname:"to_date",
+			label: __("To Date"),
+			fieldtype: "Date",
+		},
+
+	]
+}
+
diff --git a/erpnext/hr/report/bank_remittance/bank_remittance.json b/erpnext/hr/report/bank_remittance/bank_remittance.json
new file mode 100644
index 0000000..5a6228e
--- /dev/null
+++ b/erpnext/hr/report/bank_remittance/bank_remittance.json
@@ -0,0 +1,25 @@
+{
+ "add_total_row": 0,
+ "creation": "2019-03-26 16:57:52.558895",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "idx": 0,
+ "is_standard": "Yes",
+ "letter_head": "Gadgets International",
+ "modified": "2019-03-26 16:57:52.558895",
+ "modified_by": "Administrator",
+ "module": "HR",
+ "name": "Bank Remittance",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Payroll Entry",
+ "report_name": "Bank Remittance",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "HR Manager"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/hr/report/bank_remittance/bank_remittance.py b/erpnext/hr/report/bank_remittance/bank_remittance.py
new file mode 100644
index 0000000..b2d2c53
--- /dev/null
+++ b/erpnext/hr/report/bank_remittance/bank_remittance.py
@@ -0,0 +1,154 @@
+# Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe.utils import formatdate
+import itertools
+from frappe import _, get_all
+
+def execute(filters=None):
+	columns = [
+		{
+			"label": _("Payroll Number"),
+			"fieldtype": "Link",
+			"fieldname": "payroll_no",
+			"options": "Payroll Entry",
+			"width": 150
+		},
+		{
+			"label": _("Debit A/C Number"),
+			"fieldtype": "Int",
+			"fieldname": "debit_account",
+			"hidden": 1,
+			"width": 200
+		},
+		{
+			"label": _("Payment Date"),
+			"fieldtype": "Data",
+			"fieldname": "payment_date",
+			"width": 100
+		},
+		{
+			"label": _("Employee Name"),
+			"fieldtype": "Link",
+			"fieldname": "employee_name",
+			"options": "Employee",
+			"width": 200
+		},
+		{
+			"label": _("Bank Name"),
+			"fieldtype": "Data",
+			"fieldname": "bank_name",
+			"width": 50
+		},
+		{
+			"label": _("Employee A/C Number"),
+			"fieldtype": "Int",
+			"fieldname": "employee_account_no",
+			"width": 50
+		},
+		{
+			"label": _("IFSC Code"),
+			"fieldtype": "Data",
+			"fieldname": "bank_code",
+			"width": 100
+		},
+		{
+			"label": _("Currency"),
+			"fieldtype": "Data",
+			"fieldname": "currency",
+			"width": 50
+		},
+		{
+			"label": _("Net Salary Amount"),
+			"fieldtype": "Currency",
+			"options": "currency",
+			"fieldname": "amount",
+			"width": 100
+		}
+	]
+	data = []
+
+	accounts = get_bank_accounts()
+	payroll_entries = get_payroll_entries(accounts, filters)
+	salary_slips = get_salary_slips(payroll_entries)
+	get_emp_bank_ifsc_code(salary_slips)
+
+	for salary in salary_slips:
+		if salary.bank_name and salary.bank_account_no and salary.debit_acc_no and salary.status in ["Submitted", "Paid"]:
+			row = {
+				"payroll_no": salary.payroll_entry,
+				"debit_account": salary.debit_acc_no,
+				"payment_date": frappe.utils.formatdate(salary.modified.strftime('%Y-%m-%d')),
+				"bank_name": salary.bank_name,
+				"employee_account_no": salary.bank_account_no,
+				"bank_code": salary.ifsc_code,
+				"employee_name": salary.employee+": " + salary.employee_name,
+				"currency": frappe.get_cached_value('Company', filters.company, 'default_currency'),
+				"amount": salary.net_pay,
+			}
+			data.append(row)
+	return columns, data
+
+def get_bank_accounts():
+	accounts = [d.name for d in get_all("Account", filters={"account_type": "Bank"})]
+	return accounts
+
+def get_payroll_entries(accounts, filters):
+	payroll_filter = [
+		('payment_account', 'IN', accounts),
+		('number_of_employees', '>', 0),
+		('Company', '=', filters.company)
+	]
+	if filters.to_date:
+		payroll_filter.append(('posting_date', '<', filters.to_date))
+
+	if filters.from_date:
+		payroll_filter.append(('posting_date', '>', filters.from_date))
+
+	entries = get_all("Payroll Entry", payroll_filter, ["name", "payment_account"])
+
+	payment_accounts = [d.payment_account for d in entries]
+	set_company_account(payment_accounts, entries)
+	return entries
+
+def get_salary_slips(payroll_entries):
+	payroll  = [d.name for d in payroll_entries]
+	salary_slips = get_all("Salary Slip", filters = [("payroll_entry", "IN", payroll)],
+		fields = ["modified", "net_pay", "bank_name", "bank_account_no", "payroll_entry", "employee", "employee_name", "status"]
+	)
+
+	payroll_entry_map = {}
+	for entry in payroll_entries:
+		payroll_entry_map[entry.name] = entry
+
+	# appending company debit accounts
+	for slip in salary_slips:
+		slip["debit_acc_no"] = payroll_entry_map[slip.payroll_entry]['company_account']
+
+	return salary_slips
+
+def get_emp_bank_ifsc_code(salary_slips):
+	emp_names = [d.employee for d in salary_slips]
+	ifsc_codes = get_all("Employee", [("name", "IN", emp_names)], ["ifsc_code", "name"])
+
+	ifsc_codes_map = {}
+	for code in ifsc_codes:
+		ifsc_codes_map[code.name] = code
+
+	for slip in salary_slips:
+		slip["ifsc_code"] = ifsc_codes_map[code.name]['ifsc_code']
+
+	return salary_slips
+
+def set_company_account(payment_accounts, payroll_entries):
+	company_accounts = get_all("Bank Account", [("account", "in", payment_accounts)], ["account", "bank_account_no"])
+	company_accounts_map = {}
+	for acc in company_accounts:
+		company_accounts_map[acc.account] = acc
+
+	for entry in payroll_entries:
+		entry["company_account"] = company_accounts_map[entry.payment_account]['bank_account_no']
+
+	return payroll_entries