Roku TV power on/off via macOS shortcuts

README.md

Follow the steps below for each script: (i.e. Power on, and power off)

1. Open Automator
2. Create a new Quick Action
3. Add "Run Shell Script" to the workflow
4. Select "no input" in "any application"
5. Paste one of the scripts below (minus the shebang line) into the shell script window
6. Set DEVICE_HOSTNAME to the value of the Roku TVs hostname
7. Select "/bin/sh" as the shell
8. Test your automation
9. Save it with the desired name

Next, follw these steps to attache dthe automations to a keyboard shortcut:

1. Open System Preferences > Keyboard > Shortcuts
2. Select Services
3. Scroll down to General

Each of the autoamtions should be checked. Now, assign your desired shortcut key.

This portion should easily automated with default read ~/Library/Preferences/pbs.plist NSServicesStatus and /usr/libexec/PlistBuddy --help on macOS Bug Sur at least...

power-off.sh

#!/bin/sh

DEVICE_HOSTNAME="rokutv.hostname"
DEVICE_IP="$(host ${DEVICE_HOSTNAME} | sed -En 's|.* ([[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+).*|\1|p')"

get_device_power_mode() { 
  POWER_MODE=$(curl -sfS -X GET "http://${1}:8060/query/device-info" | sed -En "s|^.+<power-mode>([[:alpha:]]+)</power-mode>|\1|p")

  if [ "${POWER_MODE}" == "${2}" ]; then return 0; else return 1; fi
}

set_device_keypress() {
  curl -sfS -X POST "http://${1}:8060/keypress/${2}"

  return 0
}

if get_device_power_mode "${DEVICE_IP}" "PowerOn"
then
  set_device_keypress "${DEVICE_IP}" "PowerOff"
fi

power-on.sh

#!/bin/sh

DEVICE_HOSTNAME="rokutv.hostname"
DEVICE_IP="$(host ${DEVICE_HOSTNAME} | sed -En 's|.* ([[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+).*|\1|p')"

get_device_power_mode() { 
  POWER_MODE=$(curl -sfS -X GET "http://${1}:8060/query/device-info" | sed -En "s|^.+<power-mode>([[:alpha:]]+)</power-mode>|\1|p")

  if [ "${POWER_MODE}" == "${2}" ]; then return 0; else return 1; fi
}

set_device_keypress() {
  curl -sfS -X POST "http://${1}:8060/keypress/${2}"

  return 0
}

if get_device_power_mode "${DEVICE_IP}" "Ready"
then
  set_device_keypress "${DEVICE_IP}" "PowerOn"
fi

while get_device_power_mode "${DEVICE_IP}" "Ready"
do
  sleep 0.25
done

sleep 3

set_device_keypress "${DEVICE_IP}" "InputHDMI1"