✨ Found calcurse notification scripits, yet to use

scripts/calcurse_notification_attempts/calcurse_reminder.py

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+#!/usr/bin/env python3
+
+# https://askubuntu.com/questions/713822/how-can-i-use-the-notify-send-command-in-combination-with-the-calcurse-calendar
+
+# python script that uses notify-send to tell you about what you have scheduled in calcurse
+# parses the output and then uses system time to notify you
+
+#  calcurse -a
+#  09/05/22:
+ #  - 03:40 -> 03:40
+	#  do stuff!!
+ #  - 03:45 -> 03:45
+	#  do some more stuff!!
+
+# invoked like so... kinda janky, can be used a bash script as well I believe...
+#  calcurse_reminder 30
+
+import subprocess
+import time
+import sys
+
+warn = int(sys.argv[1])
+
+def get(command):
+    return subprocess.check_output(command).decode("utf-8")
+
+def convert(t):
+    # convert set time into a calculate- able time
+    return [int(n) for n in t.split(":")]
+
+def calc_diff(t_curr, t_event):
+    # calculate time span
+    diff_hr = (t_event[0] - t_curr[0])*60
+    diff_m = t_event[1] - t_curr[1]
+    return diff_hr + diff_m
+
+def cleanup(done, newlist):
+    # clean up "done" -lists
+    for item in done:
+        if not item in newlist:
+            done.remove(item)
+    return done
+
+def show_time(event, s = ""):
+    # show scheduled event
+    hrs = str(event[0][0]); mnts = str(event[0][1])
+    mnts = "0"+mnts if len(mnts) != 2 else mnts
+    subprocess.call(["notify-send", s, "At "+hrs+":"+mnts+" - "+event[1]])
+
+startups = []; times = []
+
+while True:
+    currtime = convert(time.strftime("%H:%M"))
+    events = [l.strip() for l in get(["calcurse", "-a"]).splitlines()][1:]
+    # arrange event data:
+    groups = []; sub = []
+    for l in events:
+        if l.startswith("* "):
+            groups.append([l.replace("* ", "")])
+        elif l.startswith("- "):
+            sub.append(convert(l.split("->")[0].replace("-", "").strip()))
+        else:
+            groups.append(sub+[l])
+            sub = []
+    # run notifications
+    for item in groups:
+        # on startup:
+        if not item in startups:
+            # all- day events
+            if len(item) == 1:
+                subprocess.call(["notify-send", "Today - "+item[0]])
+            # time- specific events
+            elif len(item) == 2:
+                show_time(item, "Appointment")
+            startups.append(item)
+        # as a reminder:
+        if all([len(item) == 2, not item in times]):
+            span = calc_diff(currtime, item[0])
+            if span <= warn:
+                show_time(item, "[Reminder]")
+                times.append(item)
+    # clean up events
+    startups = cleanup(startups, groups); times = cleanup(times, groups)
+    time.sleep(30)
+