feat: prefill allowances table with selected date range (#60)

Co-authored-by: barredterra <[email protected]>

.editorconfig

@@ -9,6 +9,7 @@ trim_trailing_whitespace = true
 charset = utf-8
 
 # python, js indentation settings
-[{*.py,*.js,*.vue}]
+[{*.py,*.js,*.vue,*.css,*.scss,*.html}]
 indent_style = tab
 indent_size = 4
+max_line_length = 99

erpnext_germany/erpnext_germany/doctype/business_trip/business_trip.js

@@ -7,8 +7,8 @@ frappe.ui.form.on("Business Trip", {
 		frm.set_query("region", (doc) => {
 			return {
 				filters: {
-					valid_from: ["<=", doc.from_date], 
-				}
+					valid_from: ["<=", doc.from_date],
+				},
 			};
 		});
 	},
@@ -42,3 +42,35 @@ frappe.ui.form.on("Business Trip Accommodation", {
 		frappe.model.set_value(cdt, cdn, "to_date", frm.doc.to_date);
 	},
 });
+
+frappe.ui.form.on("Business Trip Allowance", {
+	allowances_add(frm) {
+		if (!frm.doc.from_date || !frm.doc.to_date) {
+			frappe.msgprint(__("Please enter a start and end date of the trip!"));
+			return;
+		}
+
+		let start = new Date(frm.doc.from_date);
+		let end = new Date(frm.doc.to_date);
+
+		if (end < start) {
+			frappe.msgprint(__("The end date should not be before the start date!"));
+			return;
+		}
+
+		if (frm.doc.allowances && frm.doc.allowances.length == 1 && !frm.doc.allowances[0].date) {
+			frm.clear_table("allowances");
+
+			for (let d = new Date(start); d <= end; d.setDate(d.getDate() + 1)) {
+				let child = frm.add_child("allowances");
+				let d_string = d.toISOString().slice(0, 10);
+				frappe.model.set_value(child.doctype, child.name, "date", d_string);
+				if (d_string != frm.doc.from_date && d_string != frm.doc.to_date) {
+					frappe.model.set_value(child.doctype, child.name, "whole_day", true);
+				}
+			}
+
+			frm.refresh_field("allowances");
+		}
+	},
+});