#!/bin/bash

# shellcheck source=/dev/null
source /usr/sbin/gpio-defs.sh

# Usage of this utility
function usage() {
	echo "Usage:"
	echo "  ampere_power_util.sh mb [status|shutdown_ack|force_reset|soft_off]";
}

power_status() {
	st=$(busctl get-property xyz.openbmc_project.State.Chassis /xyz/openbmc_project/state/chassis0 xyz.openbmc_project.State.Chassis CurrentPowerState | cut -d"." -f6)
	if [ "$st" == "On\"" ]; then
		echo "on"
	else
		echo "off"
	fi
}

shutdown_ack() {
	if [ -f "/run/openbmc/host@0-softpoweroff" ]; then
		echo "Receive shutdown ACK triggered after softportoff the host."
		touch /run/openbmc/host@0-softpoweroff-shutdown-ack
	else
		echo "Receive shutdown ACK triggered"
		sleep 3
		systemctl start obmc-chassis-poweroff@0.target
	fi
}

soft_off() {
	# Trigger shutdown_req
	touch /run/openbmc/host@0-softpoweroff
	gpioset -l 0 "$S0_SHD_REQ_L"=1
	sleep 1s
	gpioset -l 0 "$S0_SHD_REQ_L"=0

	# Wait for shutdown_ack from the host in 30 seconds
	cnt=30
	while [ $cnt -gt 0 ];
	do
		# Wait for SHUTDOWN_ACK and create the host@0-softpoweroff-shutdown-ack
		if [ -f "/run/openbmc/host@0-softpoweroff-shutdown-ack" ]; then
			break
		fi
		sleep 1
		cnt=$((cnt - 1))
	done
	# Softpoweroff is successed
	sleep 2
	rm -rf /run/openbmc/host@0-softpoweroff
	if [ -f "/run/openbmc/host@0-softpoweroff-shutdown-ack" ]; then
		rm -rf /run/openbmc/host@0-softpoweroff-shutdown-ack
	fi
	echo 0
}

force_reset() {
	if [ -f "/run/openbmc/host@0-softpoweroff" ]; then
		# In graceful host reset, after trigger os shutdown,
		# the phosphor-state-manager will call force-warm-reset
		# in this case the force_reset should wait for shutdown_ack from host
		cnt=30
		while [ $cnt -gt 0 ];
		do
			if [ -f "/run/openbmc/host@0-softpoweroff-shutdown-ack" ]; then
				break
			fi
			echo "Waiting for shutdown-ack count down $cnt"
			sleep 1
			cnt=$((cnt - 1))
		done
		# The host OS is failed to shutdown
		if [ $cnt == 0 ]; then
			echo "Shutdown-ack time out after 30s."
			exit 0
		fi
	fi
	echo "Triggering sysreset pin"
	gpioset -l 0 "$S0_SYSRESET_L"=1
	sleep 1
	gpioset -l 0 "$S0_SYSRESET_L"=0
}

if [ $# -lt 2 ]; then
	echo "Total number of parameter=$#"
	echo "Insufficient parameter"
	usage;
	exit 0;
fi

if [ "$1" != "mb" ]; then
	echo "Invalid parameter1=$1"
	usage;
	exit 0;
fi

mkdir -p /run/openbmc/

if [ "$2" == "shutdown_ack" ]; then
	shutdown_ack
elif [ "$2" == "status" ]; then
	power_status
elif [ "$2" == "force_reset" ]; then
	force_reset
elif [ "$2" == "soft_off" ]; then
	ret=$(soft_off)
	if [ "$ret" == 0 ]; then
		echo "The host is already softoff"
	else
		echo "Failed to softoff the host"
	fi
	exit "$ret";
else
	echo "Invalid parameter2=$2"
	usage;
fi

exit 0;