From d34232b819e03046e641ea6c618ddd3ec1dce52c Mon Sep 17 00:00:00 2001
From: quenousimporte <quenousimporte@riseup.net>
Date: Wed, 17 Jan 2024 14:01:46 +0100
Subject: [PATCH] initial commit

---
 ics.bat                   |   3 +
 ics.js                    | 114 ++++++++++++++++++++++++++++++++++++++
 settings.json.sample.json |   7 +++
 3 files changed, 124 insertions(+)
 create mode 100644 ics.bat
 create mode 100644 ics.js
 create mode 100644 settings.json.sample.json

diff --git a/ics.bat b/ics.bat
new file mode 100644
index 0000000..5163f4d
--- /dev/null
+++ b/ics.bat
@@ -0,0 +1,3 @@
+@echo off
+node ics
+pause
\ No newline at end of file
diff --git a/ics.js b/ics.js
new file mode 100644
index 0000000..982672a
--- /dev/null
+++ b/ics.js
@@ -0,0 +1,114 @@
+const https = require('https');
+const fs = require('fs');
+
+var settings = null;
+var ics = "";
+var id = 0;
+
+function ics2json(input)
+{
+	var root = {};
+	var curr = root;
+	input.split("\r\n").forEach(l =>
+	{
+		var key = l.split(":")[0].split(";")[0];
+		var val = l.split(":")[1];
+		if (key == "BEGIN")
+		{
+			if (curr[val])
+			{
+				val += "_" + (id++);
+			}
+			curr[val] = {
+				parent: curr
+			};
+			curr = curr[val];
+		}
+		else if (key == "END")
+		{
+			var parent = curr.parent;
+			delete curr.parent;
+			curr = parent;
+		}
+		else
+		{
+			curr[key] = key.startsWith("DT") ? dt(val) : val;
+		}
+
+	});
+
+	root.VCALENDAR.VEVENTS = [];
+	Object.keys(root.VCALENDAR)
+	.filter(k => (k == "VEVENT" || k.startsWith("VEVENT_")))
+	.forEach(k =>
+	{
+		root.VCALENDAR.VEVENTS.push(root.VCALENDAR[k]);
+		delete root.VCALENDAR[k];
+	});
+
+	return root.VCALENDAR;
+}
+
+function dt(s)
+{
+	return new Date(
+		s.substr(0,4) + "-" + s.substr(4,2) + "-" + s.substr(6,2)
+		+ "T"
+		+ s.substr(9,2) + ":" + s.substr(11,2) + ":" + s.substr(13,2));
+}
+
+function formatevent(e)
+{
+	return e.DTSTART.toLocaleString('fr-FR', { timeZone: 'Europe/Paris' }) + ": " + e.SUMMARY;
+}
+
+function main()
+{
+	var o = ics2json(ics);
+
+	var lastweek = new Date();
+	lastweek.setDate(lastweek.getDate() - settings.recentdays);
+
+	console.log("A venir");
+	o.VEVENTS
+	.filter(e => e.DTSTART >= (new Date))
+	.sort( (a,b) => a.DTSTART - b.DTSTART)
+	.map(formatevent)
+	.forEach(e => console.log(e));
+
+	console.log("\nChangements récents (" + settings.recentdays + " jours)");
+	o.VEVENTS
+	.filter(e => e.DTSTART >= (new Date) && e.DTSTAMP >= lastweek)
+	.sort( (a,b) => a.DTSTART - b.DTSTART)
+	.map(formatevent)
+	.forEach(e => console.log(e));
+}
+
+fs.readFile('settings.json', 'utf8', (err, data) =>
+{
+	settings = JSON.parse(data);
+
+	var options =
+	{
+		host: settings.host,
+		port: 443,
+		path : settings.path,
+		headers: {
+			'Authorization': 'Basic ' + Buffer.from(settings.username + ':' + settings.passw).toString('base64')
+		}
+	};
+
+	request = https.get(options, function(res)
+	{
+		if (res.statusCode != 200)
+		{
+			console.log(`statusCode: ${res.statusCode}`)
+		}
+
+		res.on('data', chunk => ics += chunk );
+		res.on('end', main);
+	});
+
+	request.on('error', console.error);
+	request.end();
+});
diff --git a/settings.json.sample.json b/settings.json.sample.json
new file mode 100644
index 0000000..9899ed6
--- /dev/null
+++ b/settings.json.sample.json
@@ -0,0 +1,7 @@
+{
+	"host": "caldav.server.example",
+	"username": "username",
+	"passw": "pizz@!123",
+	"path": "/my/calendar/path",
+	"recentdays": 10
+}
\ No newline at end of file