From 4adbb6088a0426c68dae499b51786c8e2716c973 Mon Sep 17 00:00:00 2001
From: Tom Barrett <tom@tombarrett.xyz>
Date: Thu, 3 Jun 2021 10:25:32 +0200
Subject: simple timing script

---
 setup                      |  5 +++++
 time_to_go                 | 41 +++++++++++++++++++++++++++++++++++++++++
 time_to_go_startup.service |  8 ++++++++
 3 files changed, 54 insertions(+)
 create mode 100755 setup
 create mode 100755 time_to_go
 create mode 100644 time_to_go_startup.service

diff --git a/setup b/setup
new file mode 100755
index 0000000..5a98b6e
--- /dev/null
+++ b/setup
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+loginctl enable-linger tom
+cp time_to_go_startup.service  ~/.config/systemd/user/
+systemctl --user enable time_to_go_startup
diff --git a/time_to_go b/time_to_go
new file mode 100755
index 0000000..e0507c7
--- /dev/null
+++ b/time_to_go
@@ -0,0 +1,41 @@
+#!/bin/python
+from os import path
+from sys import argv
+from datetime import datetime, timedelta
+from pickle import dump, load
+
+arrival_path = "/home/tom/work/.arrival"
+now = datetime.now()
+
+
+def update_arrival(dt):
+    with open(arrival_path, "wb") as arrival_file:
+        dump(dt, arrival_file)
+
+
+def get_arrival():
+    with open(arrival_path, "rb") as arrival_file:
+        return load(arrival_file)
+
+
+if len(argv) > 1:
+    update_arrival(
+        datetime.strptime(argv[1], "%H:%M").replace(
+            day=now.day, month=now.month, year=now.year
+        )
+    )
+
+if path.isfile(arrival_path):
+    potential_arrival = get_arrival()
+
+    if potential_arrival.date() < now.date():
+        update_arrival(now)
+
+    arrival = get_arrival()
+
+    time_to_leave = arrival + timedelta(hours=8, minutes=40)
+
+    print(str(time_to_leave - now).split(".")[0])
+
+else:
+    update_arrival(now)
diff --git a/time_to_go_startup.service b/time_to_go_startup.service
new file mode 100644
index 0000000..ddb463f
--- /dev/null
+++ b/time_to_go_startup.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=Launch time_to_go at boot
+
+[Service]
+ExecStart=/home/tom/bin/time_to_go
+
+[Install]
+WantedBy=default.target
-- 
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