macOS Mojave auto dark mode

autodarkmode.sh

#!/bin/bash


set_mode() {
    if [[ "$1" == "dark" ]]; then
        osascript -e '
        tell application id "com.apple.systemevents"
            tell appearance preferences
                if dark mode is false then
                    set dark mode to true
                end if
            end tell
        end tell
        '
    elif [[ "$1" == "light" ]]; then
        osascript -e '
        tell application id "com.apple.systemevents"
            tell appearance preferences
                if dark mode is true then
                    set dark mode to false
                end if
            end tell
        end tell
        '
    fi
}


next_sunrise=$(/usr/bin/corebrightnessdiag nightshift-internal | grep nextSunrise | cut -d \" -f2)
next_sunset=$(/usr/bin/corebrightnessdiag nightshift-internal | grep nextSunset | cut -d \" -f2)

sunrise_hour=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$next_sunrise" +"%-H")
sunrise_minute=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$next_sunrise" +"%-M")

sunset_hour=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$next_sunset" +"%-H")
sunset_minute=$(date -jf "%Y-%m-%d %H:%M:%S %z" "$next_sunset" +"%-M")

current_hour=$(date +"%-H")
current_minute=$(date +"%-M")


# TESTING
# echo "Alba: $sunrise_hour:$sunrise_minute – Tramonto: $sunset_hour:$sunset_minute"
# read -p "Ora attuale: " current_hour
# read -p "Minuto attuale: " current_minute


if [[ "$current_hour" -gt "$sunrise_hour" ]] && [[ "$current_hour" -lt "$sunset_hour" ]]; then
    set_mode "light"
elif [[ "$current_hour" == "$sunrise_hour" ]]; then
    if [[ "$current_minute" -ge "$sunrise_minute" ]]; then
        set_mode "light"
    else
        set_mode "dark"
    fi
elif [[ "$current_hour" == "$sunset_hour" ]]; then
    if [[ "$current_minute" -ge "$sunset_minute" ]]; then
        set_mode "dark"
    else
        set_mode "light"
    fi
else
    set_mode "dark"
fi