From 08bbdcb5f983189be2efe8bde167563f7a2a4df2 Mon Sep 17 00:00:00 2001
From: Bastian Dehn <hhaalo@arcor.de>
Date: Fri, 17 Dec 2021 18:23:49 +0100
Subject: [PATCH] change: class to strip calender

---
 cal.js | 96 +++++++++++++++++++++++++---------------------------------
 1 file changed, 42 insertions(+), 54 deletions(-)

diff --git a/cal.js b/cal.js
index b38e9a3..1092b16 100644
--- a/cal.js
+++ b/cal.js
@@ -1,81 +1,69 @@
-class Month
+class StripCalender
 {
-	constructor(year, month) {
-		let date = new Date(year, month, 0)
-		this.year = year;
-		this.number = date.getMonth();
-		this.days = date.getDate();
-		const monthnames = [ "Januar", "Februar", "März", "April",
-			"Mai", "Juni", "Juli", "August", "September", "Oktober",
-			"November", "Dezember" ];
-		this.name = monthnames[this.number];
-	}
-
-	createMonthHeader() {
-		let month = document.createElement("th");
-		let span = document.createAttribute("colspan");
-
-		month.innerText = this.name;
-		span.value = this.days
-
-		month.setAttributeNode(span);
-
-		return month;
+	constructor(year)
+	{
+		this._year = year;
+		this._date = new Date(year);
 	}
 
-	createDaysHeader(tr) {
+	createMonthHeader()
+	{
+		let tr = document.createElement("tr");
+		tr.classList.add("row");
+		tr.classList.add("month");
 		let th = null;
+		let attr = null;
+		const monthnames = [ "Januar", "Februar", "März", "April",
+			"Mai", "Juni", "Juli", "August", "September", "Oktober",
+			"November", "Dezember" ];
 
-		for (let i = 1; i < this.days + 1; i++) {
+		for (let i = 1; i <= 12; i++) {
+			this._date.setMonth(i, 0);
 			th = document.createElement("th");
-			th.innerText = i;
+			attr = document.createAttribute("colspan");
+			attr.value = this._date.getDate();
+			th.setAttributeNode(attr);
+			th.innerText = monthnames[i - 1];
 			tr.appendChild(th);
 		}
 
-		return th;
+		return tr;
 	}
-}
 
+	createMonthDaysHeader()
+	{
+		let tr = document.createElement("tr");
+		tr.classList.add("row");
+		tr.classList.add("monthday");
 
-function addMonthDaysHeader()
-{
-	let date = new Date();
-	let month = null;
-	let monthdaysheader = document.createElement("tr");
-	monthdaysheader.classList.add("row");
-	monthdaysheader.classList.add("monthday");
+		for (let i = 1; i <= 12; i++) {
+			this._date.setMonth(i, 0);
+			this.appendOneMonthDaysHeader(tr, this._date.getDate());
+		}
 
-	for (let i = 0; i < 12; i++) {
-		month = new Month(date.getYear(), i);
-		month.createDaysHeader(monthdaysheader);
+		return tr;
 	}
 
-	return monthdaysheader;
-}
-
-function addMonthHeader()
-{
-	let date = new Date();
-	let month = null;
-	let header = document.createElement("tr");
-	header.classList.add("row");
-	header.classList.add("month");
+	appendOneMonthDaysHeader(tr, days)
+	{
+		let th = null;
 
-	for (let i = 0; i < 12; i++) {
-		month = new Month(date.getYear(), i);
-		header.appendChild(month.createMonthHeader());
+		for (let i = 1; i <= days; i++) {
+			th = document.createElement("th");
+			th.innerText = i;
+			tr.appendChild(th);
+		}
 	}
-
-	return header;
 }
 
 function calender()
 {
 	let cal = document.getElementById("cal");
 	let table = document.createElement("table");
+	let calender = new StripCalender((new Date()).getYear());
 
-	table.appendChild(addMonthHeader());
-	table.appendChild(addMonthDaysHeader());
+	table.appendChild(calender.createMonthHeader());
+	table.appendChild(calender.createMonthDaysHeader());
 
 	cal.appendChild(table);
 }
-- 
2.39.5