#!/bin/bash

. /etc/profile
. /etc/os-release

if [ ! "$1" ];then
	echo -e "usage : batocera-config [command] [args]\nWith command in\n\toverscan [enable|disable]\n\tlsaudio\n\tgetaudio\n\taudio [hdmi|jack|auto|custom|x,y]\n\tcanupdate\n\tupdate\n\twifi [enable|disable] ssid key\n\tstorage [current|list|INTERNAL|ANYEXTERNAL|RAM|DEV UUID]\n\tsetRootPassword [password]\n\tgetRootPassword\n\ttz [|tz]"
	exit 1
fi
configFile="/storage/.config/system/configs/config.txt"
storageFile="/storage/.config/system/configs/batocera-boot.conf"
command="$1"
mode="$2"
extra1="$3"
extra2="$4"
extra3="$5"
extra4="$6"
arch=${HW_DEVICE}

updateurl="https://127.0.0.1"

preBootConfig() {
    mount -o remount,rw /boot
}

postBootConfig() {
    mount -o remount,ro /boot
}

bato_config_set_value () {
	key=$1
	value=$2
	[ -z "$value" ] && value=0
	cat "$configFile" | grep "$key"
        valPresent=$?
	if [ "$valPresent" != "0" ];then
		echo "$key=$value" >> "$configFile"
	else
		sed -i "s/#\?$key=.*/$key=$value/g" "$configFile"
	fi
}

#log=/userdata/system/logs/batocera.log
#systemsetting="python /usr/lib/python2.7/site-packages/configgen/settings/batoceraSettings.py"

log=/var/log/systemsettings.log
systemsetting="/usr/bin/batocera-settings"


echo "----config ----" >> $log

if [ "$command" == "getRootPassword" ]; then
    # security disabled, force the default one without changing boot configuration
    securityenabled="`$systemsetting  -command load -key system.security.enabled`"
    if [ "$securityenabled" != "1" ];then
	echo "linux"
	exit 0
    fi

    ENCPASSWD=$(grep -E '^[ \t]*rootshadowpassword[ \t]*=' "${storageFile}" | sed -e s+'^[ \t]*rootshadowpassword[ \t]*='++)
    if test -z "${ENCPASSWD}"
    then
	exit 1
    fi
    if ! batocera-encode decode "${ENCPASSWD}"
    then
	exit 1
    fi
    exit 0
fi

if [ "$command" == "setRootPassword" ]; then
    PASSWD=${2}

    # security disabled, don't change
    securityenabled="`$systemsetting  -command load -key system.security.enabled`"
    if [ "$securityenabled" != "1" ];then
	exit 0
    fi

    # if no password if provided, generate one
    if test -z "${PASSWD}"
    then
	PASSWD=$(tr -cd _A-Z-a-z-0-9 < /dev/urandom | fold -w8 | head -n1)
    fi
    PASSWDENC=$(batocera-encode encode "${PASSWD}")

    preBootConfig
    if grep -qE '^[ \t]*rootshadowpassword[ \t]*=' "${storageFile}"
    then
	# update it
	if ! sed -i -e s@'^[ \t]*rootshadowpassword[ \t]*=.*$'@"rootshadowpassword=${PASSWDENC}"@ "${storageFile}"
	then
	    postBootConfig
	    exit 1
	fi
	postBootConfig
	exit 0
    else
	# create it
	if ! echo "rootshadowpassword=${PASSWDENC}" >> "${storageFile}"
	then
	    postBootConfig
	    exit 1
	fi
	postBootConfig
	exit 0
    fi
fi

if [ "$command" == "overscan" ]; then
if [ "$mode" == "set" ];then
# set will set overscan values abd  also enable this mode
	if [ -z "$extra1" ] || [ -z "$extra2" ] || [ -z "$extra3" ] || [ -z "$extra4" ]; then
		echo "$0 $command $mode needs 4 arguments:"
		echo "$0 $command $mode overscan_left overscan_right overscan_top overscan_bottom"
		exit 2
	fi
	preBootConfig
	[ -f "$configFile" ] || touch "$configFile"

	echo "setting overscan values $extra1 $extra2 $extra3 $extra4 " >> $log
	bato_config_set_value disable_overscan 0
	bato_config_set_value overscan_scale 1
	bato_config_set_value overscan_left "$extra1"
	bato_config_set_value overscan_right "$extra2"
	bato_config_set_value overscan_top "$extra3"
	bato_config_set_value overscan_bottom "$extra4"

	postBootConfig
	exit 0

fi
if [ -f "$configFile" ];then
        preBootConfig
	if [ "$mode" == "enable" ];then
		echo "enabling overscan" >> $log
		bato_config_set_value disable_overscan 0
		bato_config_set_value overscan_scale 1
	elif [ "$mode" == "disable" ];then
                echo "disabling overscan" >> $log
		bato_config_set_value disable_overscan 1
		bato_config_set_value overscan_scale 0
	else
                postBootConfig
		exit 1
	fi
	postBootConfig
	exit 0
else
	exit 2
fi
fi

if [ "$command" == "lsoutputs" ]
then
    echo "auto"
    batocera-resolution listOutputs
fi

if [ "$command" == "lsaudio" ];then
    if [[ "${arch}" =~ "rpi" ]]
    then
	echo "hdmi"
	echo "jack"
	echo "auto"
    elif [[ "${arch}" =~ "x86" ]];then
	echo "auto"
	echo "custom"
	LANG=C aplay -l | grep -E '^card [0-9]*:' | sed -e s+'^card \([0-9]*\): \([^,]*\), device \([0-9]*\): [^\[]* \[\([^]]*\)].*$'+'\1,\3 \4 \2'+
    else
	echo "auto"
    fi
fi

if [ "$command" == "getaudio" ];then
    $systemsetting -command load -key audio.device
    exit 0
fi

if [ "$command" == "audio" ];then
    # this code is specific to the rpi
    # don't set it on other boards
    # find a more generic way would be nice
    if [[ "${arch}" =~ "rpi" ]]
    then
	# this is specific to the rpi
	cmdVal="0"
	if [ "$mode" == "hdmi" ];then
	    cmdVal="2"
	elif [ "$mode" == "jack" ];then
	    cmdVal="1"
	fi
        echo "setting audio output mode : $mode" >> $log
	amixer -c 0 -M cset numid=3 $cmdVal || exit 1
    elif [[ "${arch}" =~ "x86" ]]
    then
	# auto: no .asoundrc file
	# custom: don't touch the .asoundrc file
	# any other, create the .asoundrd file
	if [ "$mode" == "auto" ];then
	    rm -rf /userdata/system/.asoundrc || exit 1
	elif [ "$mode" != "custom" ];then
	    if echo "${mode}" | grep -qE '^[0-9]*,[0-9]* '
	    then
		cardnb=$(echo "${mode}" | sed -e s+'^\([0-9]*\),.*$'+'\1'+)
		devicenb=$(echo "${mode}" | sed -e s+'^[0-9]*,\([0-9]*\) .*$'+'\1'+)
		cat > /userdata/system/.asoundrc <<EOF
	    pcm.!default { type plug slave { pcm "hw:${cardnb},${devicenb}" } }
	    ctl.!default { type hw card ${cardnb} }
EOF
		aplay "/usr/share/sounds/Mallet.wav"
	    fi
	fi
    fi
    exit 0
fi

if [ "$command" == "volume" ];then
	if [ "$mode" != "" ];then
        	echo "setting audio volume : $mode" >> $log

		# on my pc, the master is turned off at boot
		# i don't know what are the rules to set here.
		amixer -c 0 -M set ${DEVICE_AUDIO_MIXER} unmute      || exit 1
                amixer -c 0 -M set ${DEVICE_AUDIO_MIXER}    -- ${mode}% || exit 1

		# maximize the sound to be sure it's not 0, allow errors
		amixer -c 0 -M set PCM       -- 100% #|| exit 1
		amixer -c 0 -M set Headphone -- 100% #|| exit 1
		exit 0
	fi
	exit 12
fi

if [ "$command" == "gpiocontrollers" ];then
	command="module"
	mode="load"
	extra1="mk_arcade_joystick_rpi"
	extra2="map=1,2"
fi

if [ "$command" == "module" ];then
	modulename="$extra1"
	map="$extra2"
	# remove in all cases
	rmmod /lib/modules/`uname -r`/extra/${modulename}.ko >> $log

        if [ "$mode" == "load" ];then
	        echo "loading module $modulename args = $map" >> $log
		insmod /lib/modules/`uname -r`/extra/${modulename}.ko $map >> $log
		[ "$?" ] || exit 1
        fi
	exit 0
fi

if [ "$command" == "canupdate" ];then
	available=$(updatecheck canupdate)
	echo "$available"
	if [[ "$available" != "no" ]]; then
		exit 0
	fi
	exit 12
fi

if [ "$command" == "update" ];then
	system-upgrade
	exit $?
fi

if [[ "$command" == "storage" ]]; then
    exit 0;
fi

if [[ "$command" == "forgetBT" ]]; then
   killall -9 hcitool
   systemctl stop bluetooth
   rm -rf /storage/.cache/bluetooth/*
   systemctl start bluetooth
   exit 0
fi

if [ "$command" == "tz" ];then
    if test "$mode" == ""
    then
	cat /storage/.config/system/configs/tz
    else
	if test -f "/usr/share/zoneinfo/${mode}"
	then
	    echo "TIMEZONE=${mode}" > /storage/.cache/timezone
        systemctl restart tz-data.service
	fi
    fi
    exit $?
fi

exit 10