feat: add government fee calculation to Plot Master and related doctypes

landms/landms/doctype/land_acquisition_plot_type_rate/land_acquisition_plot_type_rate.json

@@ -19,6 +19,15 @@
    "label": "Selling Price per Sqm",
    "reqd": 1,
    "in_list_view": 1
+  },
+  {
+   "fieldname": "land_rent_rate",
+   "fieldtype": "Float",
+   "label": "Land Rent Rate (TZS/sqm)",
+   "fetch_from": "plot_type.land_rent_rate",
+   "fetch_if_empty": 0,
+   "read_only": 1,
+   "in_list_view": 1
   }
  ]
 }

landms/landms/doctype/landms_settings/landms_settings.json

@@ -194,6 +194,37 @@
    "default": "7",
    "description": "Days the paid application reserves the plot before the Sales Order must be created"
   },
+  {
+   "fieldname": "govt_fees_section",
+   "fieldtype": "Section Break",
+   "label": "Government Fees (Informational)"
+  },
+  {
+   "fieldname": "govt_appl_fee_amount",
+   "fieldtype": "Float",
+   "label": "Govt Application Fee (TZS)",
+   "default": "5000",
+   "description": "Fixed government application fee (APPL). Not your revenue — shown on plot documents for buyer reference."
+  },
+  {
+   "fieldname": "govt_registration_fee_amount",
+   "fieldtype": "Float",
+   "label": "Govt Registration Fee (TZS)",
+   "default": "25000",
+   "description": "Fixed government registration fee (REGISTR). Not your revenue — shown on plot documents for buyer reference."
+  },
+  {
+   "fieldname": "col_break_govt_fees",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "govt_premium_rate",
+   "fieldtype": "Float",
+   "label": "Govt Premium Rate",
+   "precision": "4",
+   "default": "0.0025",
+   "description": "Premium rate applied to selling price (e.g. 0.0025 = 0.25%). Not your revenue."
+  },
   {
    "fieldname": "app_fee_accounts_section",
    "fieldtype": "Section Break",

landms/landms/doctype/plot_master/plot_master.json

@@ -184,6 +184,79 @@
    "options": "Plot Master",
    "read_only": 1,
    "print_hide": 1
+  },
+  {
+   "fieldname": "govt_fees_section",
+   "fieldtype": "Section Break",
+   "label": "Government Fees (Informational)"
+  },
+  {
+   "fieldname": "land_rent_rate",
+   "fieldtype": "Float",
+   "label": "Land Rent Rate (TZS/sqm)",
+   "read_only": 1
+  },
+  {
+   "fieldname": "land_rent",
+   "fieldtype": "Currency",
+   "label": "Land Rent (L/RENT)",
+   "read_only": 1
+  },
+  {
+   "fieldname": "registration_prep_fee",
+   "fieldtype": "Currency",
+   "label": "Registration Prep Fee (CT)",
+   "read_only": 1
+  },
+  {
+   "fieldname": "col_break_govt_fees",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "govt_application_fee",
+   "fieldtype": "Currency",
+   "label": "Govt Application Fee (APPL)",
+   "read_only": 1
+  },
+  {
+   "fieldname": "premium",
+   "fieldtype": "Currency",
+   "label": "Premium",
+   "read_only": 1
+  },
+  {
+   "fieldname": "govt_registration_fee",
+   "fieldtype": "Currency",
+   "label": "Govt Registration Fee (REGISTR)",
+   "read_only": 1
+  },
+  {
+   "fieldname": "stamp_duty",
+   "fieldtype": "Currency",
+   "label": "Stamp Duty",
+   "read_only": 1
+  },
+  {
+   "fieldname": "govt_totals_section",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "total_govt_fees",
+   "fieldtype": "Currency",
+   "label": "Total Government Fees",
+   "read_only": 1,
+   "bold": 1
+  },
+  {
+   "fieldname": "col_break_totals",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "total_plot_amount",
+   "fieldtype": "Currency",
+   "label": "Total Amount (CAPS + Govt Fees)",
+   "read_only": 1,
+   "bold": 1
   }
  ],
  "permissions": [

landms/landms/doctype/plot_master/plot_master.py

@@ -108,6 +108,32 @@ def fill_financials(self):
 		else:
 			self.selling_price = 0
 
+		self._fill_govt_fees(plot_sqm)
+
+	def _fill_govt_fees(self, plot_sqm):
+		land_rent_rate = flt(frappe.db.get_value("Plot Type", self.plot_type, "land_rent_rate"))
+		settings = frappe.get_single("LandMS Settings")
+		appl      = flt(settings.govt_appl_fee_amount) or 5000
+		reg_fee   = flt(settings.govt_registration_fee_amount) or 25000
+		prem_rate = flt(settings.govt_premium_rate) or 0.0025
+
+		self.land_rent_rate      = land_rent_rate
+		self.land_rent           = flt(land_rent_rate * plot_sqm)
+		self.govt_application_fee = appl
+		self.premium             = flt(prem_rate * flt(self.selling_price))
+		self.registration_prep_fee = flt(0.2 * self.land_rent)
+		self.govt_registration_fee = reg_fee
+		self.stamp_duty          = flt(((self.land_rent - 2000) / 20) + 500) if self.land_rent > 0 else 0
+		self.total_govt_fees     = flt(
+			self.govt_application_fee +
+			self.premium +
+			self.land_rent +
+			self.registration_prep_fee +
+			self.govt_registration_fee +
+			self.stamp_duty
+		)
+		self.total_plot_amount   = flt(self.selling_price) + self.total_govt_fees
+
 	def validate_coordinate_pair(self):
 		"""Either both lat/lon are set, or both are blank."""
 		has_lat = self.latitude not in (None, "", 0)

landms/landms/doctype/plot_type/plot_type.json

@@ -21,6 +21,13 @@
    "reqd": 1,
    "in_list_view": 1,
    "description": "ERPNext item used when this plot type enters inventory on Plot Master submit"
+  },
+  {
+   "fieldname": "land_rent_rate",
+   "fieldtype": "Float",
+   "label": "Land Rent Rate (TZS/sqm)",
+   "in_list_view": 1,
+   "description": "Government land rent rate per square metre for this plot type. Used to calculate land rent and related fees on the plot."
   }
  ],
  "permissions": [

landms/patches/custom_fields/custom_fields_json/01_sales_order.json

@@ -166,14 +166,22 @@
     "depends_on": "eval:doc.plot",
     "description": "Tick to prevent the bank from accepting payments after the payment deadline date above."
   },
+  {
+    "doctype": "Custom Field",
+    "dt": "Sales Order",
+    "module": "LandMS",
+    "fieldname": "col_break_tcb_checks",
+    "fieldtype": "Column Break",
+    "insert_after": "include_expire_date"
+  },
   {
     "doctype": "Custom Field",
     "dt": "Sales Order",
     "module": "LandMS",
     "fieldname": "include_related_ref",
     "fieldtype": "Check",
     "label": "Generate Related Reference Number",
-    "insert_after": "include_expire_date",
+    "insert_after": "col_break_tcb_checks",
     "default": "0",
     "depends_on": "eval:doc.plot",
     "description": "Tick if a second reference number is needed for this sale."