Suggestion: Switch from Yahoo API to Night Shift's internal schedule

[kirichkov]

As it appears MacOS will expose the night shift schedule as well as sunset/sunrise times on the command line using /usr/bin/corebrightnessdiag nightshift-internal.

Benefits of this approach is that dependence on external services can be completely abandoned (finding lat/long and sunset/sunrise times). Also this could be used to switch to dark/light mode using the native Night Shift schedule.

One issue to keep in mind is that times returned by corebrightnessdiag are in GMT and not in local time. The local timezone can be extracted from /etc/localtime.

[katernet]

Amazing info @kirichkov thanks! I previously looked into using the night shift schedule and I could only find info on using the swift API, which would not benefit my bash script.

Taking a look it seems like I'll just be able to use corebrightnessdiag nightshift-internal with some awk and then convert to local time and store in the database. I'll look further into it.

[katernet]

Done

# Get Night Shift solar times (UTC)
riseT=$(/usr/bin/corebrightnessdiag nightshift-internal | grep nextSunrise | cut -d \" -f2)
setT=$(/usr/bin/corebrightnessdiag nightshift-internal | grep nextSunset | cut -d \" -f2)
# Convert to local time
riseTL=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$riseT" +"%H:%M")
setTL=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$setT" +"%H:%M")
# Store times in database
sqlite3 "$darkdir"/solar.db <<EOF
CREATE TABLE IF NOT EXISTS solar (id INTEGER PRIMARY KEY, time VARCHAR(5));
INSERT OR IGNORE INTO solar (id, time) VALUES (1, '$riseTL'), (2, '$setTL');
UPDATE solar SET time='$riseTL' WHERE id=1;
UPDATE solar SET time='$setTL' WHERE id=2;
EOF

[kirichkov]

👍 👍 👍 Thanks!

I'm closing it since you've implemented it in no time!

[kirichkov]

UPDATE: It's working! Switched to dark mode in the evening, switched to light mode in the morning.

[katernet]

Sweet! Thanks for the idea @kirichkov