# Use `udevadm monitor` to find out what's going on (e.g. unplugged)
# For example:
# monitor will print the received events for:
# UDEV - the event which udev sends out after rule processing
# KERNEL - the kernel uevent
# 
# KERNEL[3565.169206] change   /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1 (power_supply)
# UDEV  [3565.178952] change   /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1 (power_supply)
# KERNEL[3565.179618] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
# UDEV  [3565.195004] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
# KERNEL[3587.183562] change   /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1 (power_supply)
# UDEV  [3587.190598] change   /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1 (power_supply)
# KERNEL[3587.207545] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
# UDEV  [3587.216793] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
#
# Then, use `udevadm info --path /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1 to find out 
# the events we can use:
# P: /devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1
# L: 0
# E: DEVPATH=/devices/LNXSYSTM:00/ACPI0003:00/power_supply/ADP1
# E: POWER_SUPPLY_NAME=ADP1
# E: POWER_SUPPLY_TYPE=Mains
# E: POWER_SUPPLY_ONLINE=0
# E: SUBSYSTEM=power_supply



# Plugged
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", RUN+="/usr/bin/logger -t surface power supply online"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", RUN+="/usr/bin/surface profile set performance"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", RUN+="/usr/bin/ln -sf /etc/thermald/thermal-conf.xml.auto.performance /etc/thermald/thermal-conf.xml.auto"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", RUN+="/usr/bin/systemctl restart thermald"

# Unplugged
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", RUN+="/usr/bin/logger -t surface power supply offline"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", RUN+="/usr/bin/surface profile set low-power"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", RUN+="/usr/bin/ln -sf /etc/thermald/thermal-conf.xml.auto.mobile /etc/thermald/thermal-conf.xml.auto"
SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", RUN+="/usr/bin/systemctl restart thermald"