From 8e9e6d37fc9acfb11a2d18ea761d45ba12e765ef Mon Sep 17 00:00:00 2001
From: Ludwig Behm <ludwig@behm.me>
Date: Thu, 19 Oct 2023 23:29:05 +0200
Subject: [PATCH] add nextcloud public calendar export

---
 .gitignore                                   |  1 +
 bin/calendar-events-exporter.sh              |  5 +++++
 etc/systemd/calendar-events-exporter.service | 12 ++++++++++++
 etc/systemd/calendar-events-exporter.timer   |  9 +++++++++
 4 files changed, 27 insertions(+)
 create mode 100644 .gitignore
 create mode 100755 bin/calendar-events-exporter.sh
 create mode 100644 etc/systemd/calendar-events-exporter.service
 create mode 100644 etc/systemd/calendar-events-exporter.timer

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b735195
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+events.json
diff --git a/bin/calendar-events-exporter.sh b/bin/calendar-events-exporter.sh
new file mode 100755
index 0000000..7ed5745
--- /dev/null
+++ b/bin/calendar-events-exporter.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+curl -sH "Accept: application/calendar+json" "https://cloud.kraut.space/remote.php/dav/public-calendars/2EkPGt3PF6WwYsA3?export&expand=1&start=$(date -d "" +%s)&end=$(date -d "next month" +%s)" \
+	| jq -r '.[2] | map({_type: .[0]} + (.[1] | map({key: .[0], value: .[3]}) | from_entries))' \
+	> ./events.json
diff --git a/etc/systemd/calendar-events-exporter.service b/etc/systemd/calendar-events-exporter.service
new file mode 100644
index 0000000..6f5e28d
--- /dev/null
+++ b/etc/systemd/calendar-events-exporter.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Dumps calendar events from nextcloud into usable json
+After=network.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/bash /var/www/kraut.space/bin/calendar-events-exporter.sh
+
+User=www-data
+Group=www-data
+
+WorkingDirectory=/var/www/kraut.space
diff --git a/etc/systemd/calendar-events-exporter.timer b/etc/systemd/calendar-events-exporter.timer
new file mode 100644
index 0000000..56ee0eb
--- /dev/null
+++ b/etc/systemd/calendar-events-exporter.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=timer for automatic refresh of calendar export
+
+[Timer]
+# execute at the second minute of every hour, and repeat every 5 minutes
+OnCalendar=*:2/5
+
+[Install]
+WantedBy=timers.target