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|
#!/bin/sh
POWER_PATH="/proc/power"
NUM_OUTPUTS=$(find $POWER_PATH -name 'output*' | wc -l)
valid_output() {
[ "$1" -gt "$NUM_OUTPUTS" ] && return 1
[ "$1" -lt "1" ] && return 1
return 0
}
check_output() {
! valid_output $1 && error "Invalid output number"
}
error() {
echo "{\"error\":\"$1\"}"
exit 1
}
set_output() {
echo $2 > $POWER_PATH/relay$1
}
clear_all() {
for i in $(seq 1 $NUM_OUTPUTS); do
echo 1 > $POWER_PATH/clear_ae$i
done
}
report() {
echo "["
for i in $(seq 1 $NUM_OUTPUTS); do
relay_state=$(cat $POWER_PATH/relay$i)
if [ $relay_state -eq 1 ]; then
state="true"
else
state="false"
fi
echo -e "\t{"
echo -e "\t\t\"output\": $i,"
echo -e "\t\t\"engaged\": $state,"
echo -e "\t\t\"active_power\": $(cat $POWER_PATH/active_pwr$i),"
echo -e "\t\t\"energy_sum\": $(cat $POWER_PATH/energy_sum$i),"
echo -e "\t\t\"current_rms\": $(cat $POWER_PATH/i_rms$i),"
echo -e "\t\t\"voltage_rms\": $(cat $POWER_PATH/v_rms$i),"
echo -e "\t\t\"power_factor\": $(cat $POWER_PATH/pf$i)"
if [ $i -eq $NUM_OUTPUTS ]; then
echo -e "\t}"
else
echo -e "\t},"
fi
done
echo "]"
}
case $1 in
on)
check_output $2
set_output $2 1
report
;;
off)
check_output $2
set_output $2 0
report
;;
report)
report
;;
clear)
clear_all
;;
*)
error "Invalid command"
;;
esac
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