path: root/nitrond

#!/usr/bin/env bash
# shellcheck disable=SC2034
# shellcheck disable=SC2059
# shellcheck disable=SC1091
# shellcheck disable=SC2015
# shellcheck disable=SC1087
# shellcheck disable=SC2181
# shellcheck disable=SC2261
#
# Copyright (C) 2022~2023 UsiFX <xprjkts@gmail.com>
# Kartik728 <titanupdates728@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License
#
# This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#

### Local Variables

# \e colors
BLUE='\e[1;34m'
GREEN='\e[1;32m'
PURPLE='\e[1;35m'
CYAN='\e[1;36m'
RED='\e[1;31m'
WHITE='\e[1;37m'
YELLOW='\e[01;33m'
STOCK='\e[1;0m'

# Disable Shell's Monitor Mode
set +o monitor

export NITRON_FORCECHECK_UPDATE
export NITRON_VERSION='1.2.0'
if grep -q "androidboot" /proc/cmdline; then
	HEADER_SOURCE="/system/etc"
	NITRON_RELAX_DIR='/sdcard'
	NITRON_LOG_DIR='/cache'
else
	if command -v "resetprop" >/dev/null; then
		HEADER_SOURCE="/system/etc"
		NITRON_RELAX_DIR='/sdcard'
		NITRON_LOG_DIR='/cache'
	else
		HEADER_SOURCE="${PREFIX/\/usr}/usr/include"
		NITRON_RELAX_DIR='/etc'
		NITRON_LOG_DIR='/tmp'
	fi
fi

PR_PREFIX="nitron_broadcast"
DAEMON_SOURCE=$(dirname "$0")
PROMPT_COMMAND='sync'
LOCKFILE="${NITRON_LOG_DIR}/nitrond-frontend.lock"

printn() {
	[[ "$1" == "-n" ]] && printf "[${BLUE}*${STOCK}] $2\n"

	[[ "$1" == "-e" ]] && {
		printf "[${RED}×${STOCK}] $2\n"
		exit 1
	}

	[[ "$1" == "-w" ]] && printf "[${YELLOW}!${STOCK}] $2\n"

	[[ "$1" == "-i" ]] && printf "[${CYAN}i${STOCK}] $2\n"

	[[ "$1" == "-l" ]] && echo "[$(date +%I:%M:%S)] nitrond: $PR_PREFIX[0]: $2" >>"$NITRON_LOG_DIR"/nitron.log

	[[ "$1" == "-lf" ]] && echo "[$(date +%I:%M:%S)] nitrond: $PR_PREFIX[1]: $2" >>"$NITRON_LOG_DIR"/nitron.log

	[[ "$1" == "-ll" ]] && echo "[$(date +%I:%M:%S)] nitrond: $2" >>"$NITRON_RELAX_DIR"/nitron.log

}

# Include headers
if [[ ! -f $HEADER_SOURCE/nitronapi.sh ]]; then
	echo "missing header, $HEADER_SOURCE/nitronapi.sh"
	exit 1
else
	source "$HEADER_SOURCE"/nitronapi.sh
fi

# Check locker
[[ -f $LOCKFILE ]] && printn -e "nitrond_broadcast(): tool is held by a process and it is still running, cannot continue this instance." || echo $$ > $LOCKFILE

trap 'rm -f $LOCKFILE' EXIT TERM INT
trap 'rm -f $LOCKFILE; trapper; wait' SIGINT SIGTERM SIGHUP INT TERM KILL

writen() {
        [[ ! -f "$1" ]] && echo "[$(date +%I:%M:%S)] $1: not found, skipping..." >> "$NITRON_LOG_DIR"/nitron.log

        # Make file writable
        chmod +w "$1" 2>/dev/null

        # Write new value, bail out if it fail
        (echo $2 >> $1) 2>/dev/null  && echo "[$(date +%I:%M:%S)] $1: changed node[$2]" >> "$NITRON_LOG_DIR"/nitron.log || echo "[$(date +%I:%M:%S)] $1: failed to change node" >> "$NITRON_LOG_DIR"/nitron.log

}

__magicn_help() {
	echo "
Usage: magicn [-g|-r|-y|-h]

Options:
 -g, --green   ~ switch to Battery mode
 -y, --yellow  ~ switch to Balanced mode
 -r, --red     ~ switch to Gaming mode
 -h, --help    ~ prints this menu
"
}

# Initialise OS Compatibility check
oschk

# Initialise Mode set
modelockn

# Initialise Android Magisk Module status set-er
apin -as

magicn() {
	PR_PREFIX="magicn"
	set_battery_mode() {
		[[ "$SOURCE" == "api-auto" ]] && setmoden "Automatic green" || setmoden "Battery"
		(
			writen "/proc/sys/kernel/perf_cpu_time_max_percent" "0"
			writen "/proc/sys/kernel/sched_autogroup_enabled" "1"
			writen "/proc/sys/kernel/sched_child_runs_first" "0"
			writen "/proc/sys/kernel/sched_tunable_scaling" "0"
			writen "/proc/sys/kernel/sched_migration_cost_ns" "5000000"
			writen "/proc/sys/kernel/sched_nr_migrate" "256"
			writen "/proc/sys/kernel/sched_schedstats" "0"
			sleep 1.5
		) & spin "applying scheduler tunables..."
		writen "/proc/sys/kernel/printk_devkmsg" "off" & spin "disabling printk logging..."
		(
			writen "/proc/sys/vm/dirty_background_ratio" "2"
			writen "/proc/sys/vm/dirty_ratio" "5"
			writen "/proc/sys/vm/dirty_expire_centisecs" "500"
			writen "/proc/sys/vm/dirty_writeback_centisecs" "500"
			writen "/proc/sys/vm/page-cluster" "0"
			writen "/proc/sys/vm/stat_interval" "10"
			writen "/proc/sys/vm/swappiness" "100"
			writen "/proc/sys/vm/vfs_cache_pressure" "100"
			sleep 1.5
		) & spin "enhancning kernel's VM management..."

		(
			writen "/proc/sys/net/ipv4/tcp_ecn" "1"
			writen "/proc/sys/net/ipv4/tcp_fastopen" "3"
			writen "/proc/sys/net/ipv4/tcp_syncookies" "0"
			sleep 1.5
		) & spin "applying TCP tunables..."

		(
			writen "/dev/stune/background/schedtune.util.max.effective" "0"
			writen "/dev/stune/background/schedtune.util.min.effective" "0"
			writen "/dev/stune/background/schedtune.util.max" "0"
			writen "/dev/stune/background/schedtune.util.min" "0"
			writen "/dev/stune/background/schedtune.boost" "0"
			writen "/dev/stune/background/schedtune.prefer_idle" "1"
			writen "/dev/stune/foreground/schedtune.util.max.effective" "1"
			writen "/dev/stune/foreground/schedtune.util.min.effective" "0"
			writen "/dev/stune/foreground/schedtune.util.max" "1"
			writen "/dev/stune/foreground/schedtune.util.min" "0"
			writen "/dev/stune/foreground/schedtune.boost" "0"
			writen "/dev/stune/foreground/schedtune.prefer_idle" "1"
			writen "/dev/stune/top-app/schedtune.util.max.effective" "1024"
			writen "/dev/stune/top-app/schedtune.util.min.effective" "0"
			writen "/dev/stune/top-app/schedtune.util.max" "1024"
			writen "/dev/stune/top-app/schedtune.util.min" "0"
			writen "/dev/stune/top-app/schedtune.boost" "0"
			writen "/dev/stune/top-app/schedtune.prefer_idle" "1"
			writen "/dev/stune/schedtune.util.min" "0"
			writen "/dev/stune/schedtune.util.max" "512"
			writen "/dev/stune/schedtune.util.max.effective" "512"
			writen "/dev/stune/schedtune.util.min.effective" "0"
			writen "/dev/stune/schedtune.boost" "0"
			writen "/dev/stune/schedtune.prefer_idle" "1"
			sleep 1.5
		) & spin "enhancing SchedTune..."

		(
			writen "/sys/block/mmcblk0/queue/scheduler" "noop"
			writen "/sys/block/mmcblk1/queue/scheduler" "noop"
			writen "/sys/block/sda/queue/scheduler" "noop"
			writen "/sys/block/sdb/queue/scheduler" "noop"
			writen "/proc/cpufreq/cpufreq_power_mode" "1"
			writen "/proc/cpufreq/cpufreq_cci_mode" "0"
			writen "/sys/devices/system/cpu/eas/enable" "1"
			writen "/sys/devices/system/cpu/perf/enable" "0"
			writen "/proc/gpufreq/gpufreq_opp_freq" "99000"
			writen "/proc/ppm/enabled" "0"
			writen "/proc/ppm/policy_status" "1"
			writen "/sys/devices/system/cpu/cpufreq/policy0/scaling_governor" "powersave"
			writen "/sys/devices/system/cpu/cpufreq/policy4/scaling_governor" "powersave"
			writen "/sys/devices/system/cpu/cpufreq/policy6/scaling_governor" "powersave"
			writen "/proc/ppm/policy/hard_userlimit_max_cpu_freq" "0 $cpu_max_freq"
			writen "/proc/ppm/policy/hard_userlimit_max_cpu_freq" "1 $cpu_max_freq"
			writen "/dev/cpuset/foreground/cpus" "0-5"
			writen "/dev/cpuset/background/cpus" "0-7"
			writen "/dev/cpuset/system-background/cpus" "0-7"
			writen "/dev/cpuset/top-app/cpus" "0-7"
			writen "/dev/cpuset/restricted/cpus" "0"
			sleep 1.5
		) & spin "applying misc changes..."
	}
	set_balanced_mode() {
		[[ "$SOURCE" == "api-auto" ]] && setmoden "Automatic yellow" || setmoden "Balanced"
		(
			writen "/proc/sys/kernel/perf_cpu_time_max_percent" "0"
			writen "/proc/sys/kernel/sched_autogroup_enabled" "1"
			writen "/proc/sys/kernel/sched_child_runs_first" "1"
			writen "/proc/sys/kernel/sched_tunable_scaling" "0"
			writen "/proc/sys/kernel/sched_migration_cost_ns" "5000000"
			writen "/proc/sys/kernel/sched_nr_migrate" "32"
			writen "/proc/sys/kernel/sched_schedstats" "0"
			sleep 1.5
		) & spin "applying scheduler tunables..."

		writen "/proc/sys/kernel/printk_devkmsg" "off" & spin "disabling printk logging..."

		(
			writen "/proc/sys/vm/dirty_background_ratio" "10"
			writen "/proc/sys/vm/dirty_ratio" "30"
			writen "/proc/sys/vm/dirty_expire_centisecs" "3000"
			writen "/proc/sys/vm/dirty_writeback_centisecs" "3000"
			writen "/proc/sys/vm/page-cluster" "0"
			writen "/proc/sys/vm/stat_interval" "10"
			writen "/proc/sys/vm/swappiness" "100"
			writen "/proc/sys/vm/vfs_cache_pressure" "100"
			sleep 1.5
		) & spin "enhancning kernel's VM management..."

		(
			writen "/proc/sys/net/ipv4/tcp_ecn" "1"
			writen "/proc/sys/net/ipv4/tcp_fastopen" "3"
			writen "/proc/sys/net/ipv4/tcp_syncookies" "0"
			sleep 1.5
		) & spin "applying TCP tunables..."

		(
			writen "/dev/stune/background/schedtune.util.max.effective" "0"
			writen "/dev/stune/background/schedtune.util.min.effective" "0"
			writen "/dev/stune/background/schedtune.util.max" "0"
			writen "/dev/stune/background/schedtune.util.min" "0"
			writen "/dev/stune/background/schedtune.boost" "0"
			writen "/dev/stune/foreground/schedtune.util.max.effective" "1024"
			writen "/dev/stune/foreground/schedtune.util.min.effective" "1024"
			writen "/dev/stune/foreground/schedtune.util.max" "1024"
			writen "/dev/stune/foreground/schedtune.util.min" "0"
			writen "/dev/stune/foreground/schedtune.boost" "0"
			writen "/dev/stune/top-app/schedtune.util.max.effective" "1024"
			writen "/dev/stune/top-app/schedtune.util.min.effective" "0"
			writen "/dev/stune/top-app/schedtune.util.max" "1024"
			writen "/dev/stune/top-app/schedtune.util.min" "0"
			writen "/dev/stune/top-app/schedtune.boost" "0"
			writen "/dev/stune/schedtune.util.min" "0"
			writen "/dev/stune/schedtune.util.max" "0"
			writen "/dev/stune/schedtune.util.max.effective" "1024"
			writen "/dev/stune/schedtune.util.min.effective" "0"
			writen "/dev/stune/schedtune.boost" "0"
			sleep 1.5
		) & spin "enhancing SchedTune..."

		(
			writen "/proc/cpufreq/cpufreq_power_mode" "0"
			writen "/proc/cpufreq/cpufreq_cci_mode" "0"
			writen "/sys/devices/system/cpu/eas/enable" "2"
			writen "/sys/devices/system/cpu/perf/enable" "0"
			writen "/proc/gpufreq/gpufreq_opp_freq" "0"
			writen "/sys/block/mmcblk0/queue/scheduler" "cfq"
			writen "/sys/block/mmcblk1/queue/scheduler" "cfq"
			writen "/sys/block/sda/queue/scheduler" "cfq"
			writen "/sys/block/sdb/queue/scheduler" "cfq"
			writen "/sys/devices/system/cpu/cpufreq/policy0/scaling_governor" "schedutil"
			writen "/sys/devices/system/cpu/cpufreq/policy4/scaling_governor" "schedutil"
			writen "/sys/devices/system/cpu/cpufreq/policy6/scaling_governor" "schedutil"
			writen "/proc/ppm/policy/hard_userlimit_max_cpu_freq" "0 $cpu_max_freq"
			writen "/proc/ppm/policy/hard_userlimit_min_cpu_freq" "1 $cpu_max_freq"
			writen "/dev/cpuset/foreground/cpus" "0-7"
			writen "/dev/cpuset/background/cpus" "0-6"
			writen "/dev/cpuset/system-background/cpus" "0-4"
			writen "/dev/cpuset/top-app/cpus" "0-7"
			writen "/dev/cpuset/restricted/cpus" "0"
			sleep 1.5
		) & spin "applying misc changes..."
	}
	set_gaming_mode() {
		[[ "$SOURCE" == "api-auto" ]] && setmoden "Automatic red" || setmoden "Gaming"
		(
			writen "/proc/sys/kernel/perf_cpu_time_max_percent" "0"
			writen "/proc/sys/kernel/sched_autogroup_enabled" "0"
			writen "/proc/sys/kernel/sched_child_runs_first" "0"
			writen "/proc/sys/kernel/sched_tunable_scaling" "0"
			writen "/proc/sys/kernel/sched_migration_cost_ns" "5000000"
			writen "/proc/sys/kernel/sched_nr_migrate" "128"
			writen "/proc/sys/kernel/sched_schedstats" "0"
			sleep 1.5
		) & spin "applying scheduler tunables..."

		writen "/proc/sys/kernel/printk_devkmsg" "off" & spin "disabling printk logging..."

		(
			writen "/proc/sys/vm/dirty_background_ratio" "15"
			writen "/proc/sys/vm/dirty_ratio" "30"
			writen "/proc/sys/vm/dirty_expire_centisecs" "3000"
			writen "/proc/sys/vm/dirty_writeback_centisecs" "3000"
			writen "/proc/sys/vm/page-cluster" "0"
			writen "/proc/sys/vm/stat_interval" "10"
			writen "/proc/sys/vm/swappiness" "100"
			writen "/proc/sys/vm/vfs_cache_pressure" "80"
			sleep 1.5
		) & spin "enhancning kernel's VM management..."

		(
			writen "/proc/sys/net/ipv4/tcp_ecn" "1"
			writen "/proc/sys/net/ipv4/tcp_fastopen" "3"
			writen "/proc/sys/net/ipv4/tcp_syncookies" "0"
			sleep 1.5
		) & spin "applying TCP tunables..."

		(
			writen "/dev/stune/background/schedtune.util.max" "1"
			writen "/dev/stune/background/schedtune.util.min" "1"
			writen "/dev/stune/background/schedtune.boost" "1"
			writen "/dev/stune/background/schedtune.prefer_idle" "0"
			writen "/dev/stune/foreground/schedtune.util.max.effective" "1"
			writen "/dev/stune/foreground/schedtune.util.min.effective" "0"
			writen "/dev/stune/foreground/schedtune.util.max" "1024"
			writen "/dev/stune/foreground/schedtune.util.min" "0"
			writen "/dev/stune/foreground/schedtune.boost" "13"
			writen "/dev/stune/foreground/schedtune.prefer_idle" "0"
			writen "/dev/stune/top-app/schedtune.util.max.effective" "1024"
			writen "/dev/stune/top-app/schedtune.util.min.effective" "0"
			writen "/dev/stune/top-app/schedtune.util.max" "1024"
			writen "/dev/stune/top-app/schedtune.util.min" "0"
			writen "/dev/stune/top-app/schedtune.boost" "20"
			writen "/dev/stune/top-app/schedtune.prefer_idle" "0"
			writen "/dev/stune/schedtune.util.min" "1024"
			writen "/dev/stune/schedtune.util.max" "1024"
			writen "/dev/stune/schedtune.util.max.effective" "1024"
			writen "/dev/stune/schedtune.util.min.effective" "0"
			writen "/dev/stune/schedtune.boost" "2"
			writen "/dev/stune/schedtune.prefer_idle" "0"
			sleep 1.5
		) & spin "enhancing SchedTune..."

		(
			writen "/sys/module/pm_hotplug/parameters/loadl" "40"
			writen "/sys/module/pm_hotplug/parameters/loadh" "90"
			writen "/sys/module/pm_hotplug/parameters/loadl_scroff" "50"
			writen "/sys/module/pm_hotplug/parameters/loadh_scroff" "100"
			writen "/sys/module/pm_hotplug/parameters/rate" "100"
			writen "/sys/module/pm_hotplug/parameters/rate_cpuon" "400"
			writen "/sys/module/pm_hotplug/parameters/rate_scroff" "400"
			writen "/sys/module/pm_hotplug/parameters/freq_cpu1on" "500000"
			sleep 1.5
		) & spin "adapting pm_hotplug limitations..."

		(
			writen "/sys/devices/system/cpu/cpu0/cpufreq/smooth_target" "1"
			writen "/sys/devices/system/cpu/cpu0/cpufreq/smooth_offset" "1"
			writen "/sys/devices/system/cpu/cpu0/cpufreq/smooth_step" "1"
			sleep 1.5
		) & spin "enhancing cpufreq smoothness sets..."

		(
			writen "/proc/cpufreq/cpufreq_power_mode" "3"
			writen "/proc/cpufreq/cpufreq_cci_mode" "1"
			writen "/sys/devices/system/cpu/eas/enable" "0"
			writen "/sys/devices/system/cpu/perf/enable" "1"
			writen "/proc/ppm/enabled" "1"
			writen "/proc/ppm/policy_status" "1"
			writen "/sys/devices/system/cpu/cpufreq/policy0/scaling_governor" "performance"
			writen "/sys/devices/system/cpu/cpufreq/policy4/scaling_governor" "performance"
			writen "/sys/devices/system/cpu/cpufreq/policy6/scaling_governor" "performance"
			writen "/sys/block/mmcblk0/queue/scheduler" "deadline"
			writen "/sys/block/mmcblk1/queue/scheduler" "deadline"
			writen "/sys/block/sda/queue/scheduler" "deadline"
			writen "/sys/block/sdb/queue/scheduler" "deadline"
			writen "/sys/block/sdc/queue/scheduler" "deadline"
			writen "/proc/ppm/policy/hard_userlimit_max_cpu_freq" "0 $cpu_max_freq"
			writen "/proc/ppm/policy/hard_userlimit_min_cpu_freq" "1 $cpu_max_freq"
			writen "/dev/cpuset/foreground/cpus" "0-7"
			writen "/dev/cpuset/background/cpus" "0-7"
			writen "/dev/cpuset/system-background/cpus" "0-7"
			writen "/dev/cpuset/top-app/cpus" "0-7"
			writen "/dev/cpuset/restricted/cpus" "0"
			sleep 1.5
		) & spin "applying misc changes..."
	}

	case $* in
		"-g" | "--green")
			printn -l "--- started"
			set_battery_mode
			printn -l "--- finished"
			return 0
		;;
		"-y" | "--yellow")
			printn -l "--- started"
			set_balanced_mode
			printn -l "--- finished"
			return 0
		;;
		"-r" | "--red")
			printn -l "--- started"
			set_gaming_mode
			printn -l "--- finished"
			return 0
		;;
		"-h" | "--help") __magicn_help ;;
		*)
			printn -e "unknown option $*"
			__magicn_help
		;;
	esac
}

pingn() {
	PR_PREFIX="pingn"
	[[ "$(ping -c1 "8.8.8.8" >/dev/null 2>&1 && echo $?)" != "0" ]] && {
		printn -lf "failed"
		printcrnr "$(prompt_left -f)" "nitrond: network: unreachable"; exit 1
	} || {
		printcrnr "$(prompt_left -t)" "nitrond: network:"
		printn -l "connectivity is stable"
		return 0
	}
}

updaten() {
	cmdavail setprop && {
		if [[ "$(getprop ro.nitron.forcecheckupdate)" == "no" ]]; then
			printn -lf "ro.nitron.forcecheckupdate == $(getprop ro.nitron.forcecheckupdate)"
			printn -e "aborted from system variable"
		fi
	} || {
		if [[ "$NITRON_FORCECHECK_UPDATE" == "false" ]]; then
			printn -lf "NITRON_FORCECHECK_UPDATE == ${NITRON_FORCECHECK_UPDATE}"
			printn -e "aborted from system variable"
		fi
	}

	PR_PREFIX="updaten"

	updatealg()
	{
		(
			cmdavail curl && {
				curl -o "$NITRON_LOG_DIR/nitrond_src_cache" "https://raw.githubusercontent.com/UsiFX/OpenNitroN/main/nitrond" 2>/dev/null
				curl -o "$NITRON_LOG_DIR/nitronh_src_cache" "https://raw.githubusercontent.com/UsiFX/OpenNitroN/main/nitronapi.sh" 2>/dev/null
				chmod +x "$NITRON_LOG_DIR/nitrond_src_cache"
			} || {
				printcrnr "$(prompt_left -f)" "curl is not available in the system, cannot update." 
				exit 1
			}
			PR_PREFIX="updaten"
			(
				cp "$0" "$NITRON_LOG_DIR/nitrond_current" >/dev/null
				cp "$HEADER_SOURCE/nitronapi.sh" "$NITRON_LOG_DIR/nitronh_current" >/dev/null
			) & spin "backing up..."
			[[ "$PLATFORM" == "Android" ]] && {
				sed -i '1c\#!/system/bin/sh' "$NITRON_LOG_DIR/nitrond_src_cache" & spin "modifying update file interepter..."
			}
			if [[ "$(diff "$NITRON_LOG_DIR/nitrond_src_cache" "$NITRON_LOG_DIR/nitrond_current")" ]]; then
				cat "$NITRON_LOG_DIR/nitrond_src_cache" > "$0" & spin "updating daemon..."
			else
				printcrnr  "$(prompt_left -f)" "daemon is up to date, $(apin -dv)"
			fi
			if [[ "$(diff "$NITRON_LOG_DIR/nitronh_src_cache" "$NITRON_LOG_DIR/nitronh_current")" ]]; then
				cat "$NITRON_LOG_DIR/nitronh_src_cache" > "$HEADER_SOURCE/nitronapi.sh" & spin "attempting to update API..."
			else
				printcrnr "$(prompt_left -f)" "API is up to date, $(apin -hv)"
			fi
			printn -l "update process(es) finished"
			return 0
		) & spin "update processing..."
	}

	rollbackalg()
	{
		if [[ ! -f "$NITRON_LOG_DIR"/nitrond_current ]]; then
			printn -e "previous daemon update cache is unavailable"
		fi
		if [[ ! -f "$NITRON_LOG_DIR"/nitronh_current ]]; then
			printn -e "previous header update cache is unavailable"
		fi
		if [[ "$(diff "$0" "$NITRON_LOG_DIR/nitrond_current")" ]]; then
			printn -n "downgrading..."
			cat "$NITRON_LOG_DIR/nitrond_current" > "$0"
		else
			printn -i "there is no difference between current daemon update(s) and previous one(s)."
		fi
		if [[ "$(diff "$HEADER_SOURCE/nitron_headers.sh" "$NITRON_LOG_DIR/nitronh_current")" ]]; then
			printn -n "attempting to downgrade headers..."
			cat "$NITRON_LOG_DIR/nitronh_current" > "$HEADER_SOURCE/nitron_headers.sh"
		else
			printn -i "there is no difference between current header update(s) and previous one(s)."
		fi
		printn -l "downgrade process(es) finished"
		return 0
	}

	init()
	{
		printn -l "pinging 8.8.8.8 ..."
		printn -i "checking connectivity..."; pingn && PR_PREFIX="updaten"; updatealg
	}

	case $* in
		"-a" | "--apply")
			printn -l "--- triggered"
			init
			printn -l "--- finished"

		;;
		"-d" | "--downgrade")
			printn -l "--- triggered"
			printn -l "attempting to downgrade!"
			rollbackalg
			printn -l "--- finished"
		;;
	esac
}

# Bail out if we aren't running as SU
[[ "$(id -u)" -ne "0" ]] && {
	printn -e "please run this tool as SU"
	exit 1
}

__nitron_help() {
	echo "
Usage: nitrond [OPTION] (e.g. nitrond --update)

Commands:
  deviceinfo			~ shows device resource information
  clean				~ wipe stored nitron data
  auto				~ automatically decide mode switchment up on Environment status

Options:
  -sdm, --show-default-mode     ~ prints current tweaking mode
  -sg, --set-green              ~ apply Battery mode
  -sr, --set-red                ~ apply Gaming mode
  -sy, --set-yellow             ~ apply Balanced mode
  -c, --console-mode            ~ enter User-Friendly user selections

Others:
  -h, --help                    ~ shows this Help menu
  -v, --version                 ~ shows tool version
  -u, --update                  ~ update to latest

Advanced:
  -dd, --downgrade		~ downgrade to previous upgrade
  -d, --debug                   ~ run commands under debuggable verbose flags
"
}

if [[ $# -eq "0" ]]; then
	tty -s
	__nitron_help
else
	for arg in "$@"
	do
		case "${arg}" in
			"deviceinfo")
				apin -rc
			;;
			"clean")
				apin -c
			;;
			"auto")
				setmoden "Automatic"
				apin -as
				rm -rf "$NITRON_RELAX_DIR"/nitron.log
				apin -rc >> "$NITRON_RELAX_DIR"/nitron.log
				printn -ll "starting modifying modes up on Packages availability & Resource usage"
				printn -w "nitrond will stay on background, it may be not safe to terminate the session."
				printn -i "^C to force stop the daemon, use 'kill $(pgrep nitrond)' incase if console shell terminated."
				( apin -ad &) &
				while true; do true; done # keep it alive.
			;;
			"-sg" | "--set-green")
				[[ "$SOURCE" != "api-auto" ]] && {
					magicn -g
					printn -n "nitrond: current mode: \e[2;42m$(apin -mc)${STOCK}"
					apin -as
				} || printn -e "cannot change mode, auto is in background please kill and try again later."
			;;
			"-sr" | "--set-red")
				[[ "$SOURCE" != "api-auto" ]] && {
					magicn -r
					printn -n "nitrond: current mode: \e[1;41m$(apin -mc)${STOCK}"
					apin -as
				} || printn -e "cannot change mode, auto is in background please kill and try again later."
			;;
			"-sy" | "--set-yellow")
				[[ "$SOURCE" != "api-auto" ]] && {
					magicn -y
					printn -n "nitrond: current mode: \e[2;43m$(apin -mc)${STOCK}"
					apin -as
				} || printn -e "cannot change mode, auto is in background please kill and try again later."
			;;
			"-sdm" | "--show-default-mode")
				printn -i "mode: $(apin -mc)"
				return 0
			;;
			"-v" | "--version")
				echo -e "NitronD $(apin -dv), API: $(apin -hv)
Copyright (C) 2022-2023 UsiFX <xprjkts@gmail.com>
Copyright (C) 2022-2023 Kartik728 <titanupdates728@gmail.com>

License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.."
			;;
			"-c" | "--console-mode")
				if cmdavail dialog; then
					console_dialog
					printn -l "--- started"
				else
					printn -lf "dialog not found, switch: console_legacy()"
					console_legacy
				fi
			;;
			*"?"* | "h"* | "-h" | "--help") __nitron_help ;;
			"-u" | "--update") updaten -a ;;
			"-d" | "--debug")
				printn -w "execution under debug, please provide arguments to debug"
				printn -w "verbose is saved at: $NITRON_LOG_DIR/nitron.verbose.log"
				set -x 2>"$NITRON_LOG_DIR"/nitron.verbose.log >/dev/null
			;;
			"-dd" | "--downgrade") updaten -d ;;
			*) printn -e "unknown option $*, check 'nitrond --help'." ;;
		esac
	done
fi