From a149988a3d5f3b9818e4192deff5c3178d3e3595 Mon Sep 17 00:00:00 2001
From: midas <midas@wollinger.co.at>
Date: Wed, 30 Apr 2025 08:41:57 +0000
Subject: [PATCH] =?UTF-8?q?library/my=5Fcalendar=5Fsync.py=20hinzugef?=
 =?UTF-8?q?=C3=BCgt?=
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---
 library/my_calendar_sync.py | 112 ++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 library/my_calendar_sync.py

diff --git a/library/my_calendar_sync.py b/library/my_calendar_sync.py
new file mode 100644
index 0000000..6113a13
--- /dev/null
+++ b/library/my_calendar_sync.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+
+from ansible.module_utils.basic import AnsibleModule
+import subprocess
+import sys
+
+# Auto-Install, falls caldav fehlt
+try:
+    from caldav import DAVClient
+    import vobject
+except ImportError:
+    subprocess.check_call([sys.executable, "-m", "pip", "install", "caldav", "vobject"])
+    from caldav import DAVClient
+    import vobject
+
+
+def connect_calendar(url, user=None, password=None):
+    client = DAVClient(url, username=user, password=password) if user else DAVClient(url)
+    principal = client.principal()
+    calendars = principal.calendars()
+    if not calendars:
+        raise Exception(f"Kein Kalender gefunden unter {url}")
+    return calendars[0]
+
+
+def get_event_uid_map(calendar):
+    uid_map = {}
+    for event in calendar.events():
+        try:
+            cal = vobject.readOne(event.data)
+            uid = cal.vevent.uid.value
+            uid_map[uid] = event
+        except Exception:
+            continue
+    return uid_map
+
+
+def sync_calendars(source_cal, target_cal):
+    src_events = get_event_uid_map(source_cal)
+    tgt_events = get_event_uid_map(target_cal)
+
+    changed = False
+    added, updated, removed = [], [], []
+
+    for uid, src_event in src_events.items():
+        src_data = src_event.data
+        if uid not in tgt_events:
+            target_cal.add_event(src_data)
+            added.append(uid)
+            changed = True
+        elif src_data != tgt_events[uid].data:
+            tgt_events[uid].delete()
+            target_cal.add_event(src_data)
+            updated.append(uid)
+            changed = True
+
+    for uid in set(tgt_events.keys()) - set(src_events.keys()):
+        tgt_events[uid].delete()
+        removed.append(uid)
+        changed = True
+
+    return changed, added, updated, removed
+
+
+def run_module():
+    module_args = dict(
+        source_url=dict(type='str', required=True),
+        source_user=dict(type='str', required=False, default=None),
+        source_password=dict(type='str', required=False, default=None, no_log=True),
+        target_url=dict(type='str', required=True),
+        target_user=dict(type='str', required=True),
+        target_password=dict(type='str', required=True, no_log=True),
+    )
+
+    result = dict(
+        changed=False,
+        added=[],
+        updated=[],
+        removed=[],
+    )
+
+    module = AnsibleModule(argument_spec=module_args, supports_check_mode=False)
+
+    try:
+        source_cal = connect_calendar(
+            module.params['source_url'],
+            module.params['source_user'],
+            module.params['source_password']
+        )
+        target_cal = connect_calendar(
+            module.params['target_url'],
+            module.params['target_user'],
+            module.params['target_password']
+        )
+        changed, added, updated, removed = sync_calendars(source_cal, target_cal)
+
+        result['changed'] = changed
+        result['added'] = added
+        result['updated'] = updated
+        result['removed'] = removed
+
+        module.exit_json(**result)
+    except Exception as e:
+        module.fail_json(msg=str(e), **result)
+
+
+def main():
+    run_module()
+
+
+if __name__ == '__main__':
+    main()