#!/bin/bash

set -o pipefail
version=2.7.0-rc.3

aid=221100
game="dayz"
workshop="steam://url/CommunityFilePage/"
api="https://api.battlemetrics.com/servers"
sd_res="--width=1280 --height=800"
config_path="$HOME/.config/dztui/"
config_file="${config_path}dztuirc"
tmp=/tmp/dztui.tmp
separator="%%"
git_url="https://github.com/aclist/dztui/issues"
stable_url="https://raw.githubusercontent.com/aclist/dztui/dzgui/dzgui.sh"
testing_url="https://raw.githubusercontent.com/aclist/dztui/testing/dzgui.sh"
help_url="https://aclist.github.io/dzgui/dzgui"
check_config_msg="Check config values and restart."
news_url="https://raw.githubusercontent.com/aclist/dztui/testing/news"
freedesktop_path="$HOME/.local/share/applications"
sd_install_path="$HOME/.local/share/dzgui"
helpers_path="$sd_install_path/helpers"
geo_file="$HOME/.local/share/dzgui/helpers/ips.csv"
km_helper="$HOME/.local/share/dzgui/helpers/lat.py"
km_helper_url="https://raw.githubusercontent.com/aclist/dztui/testing/helpers/lat.py"

update_last_seen(){
	mv $config_file ${config_path}dztuirc.old
	nr=$(awk '/seen_news=/ {print NR}' ${config_path}dztuirc.old)
	seen_news="seen_news=\"$sum\""
	awk -v "var=$seen_news" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > $config_file
	printf "[DZGUI] Updated last seen news item to '$sum'\n"
	source $config_file
}
check_news(){
	result=$(curl -Ls "$news_url")
	sum=$(echo -n "$result" | md5sum | awk '{print $1}')
}
print_news(){
	check_news
	if [[ $sum == $seen_news || -z $result ]]; then 
		hchar=""
		news=""
	else
		hchar="─"
		news="$result\n$(awk -v var="$hchar" 'BEGIN{for(c=0;c<90;c++) printf var;}')\n"
		update_last_seen
	fi
}
#TODO: prevent connecting to offline servers
#TODO: abstract zenity title params and dimensions

declare -A deps
deps=([awk]="5.1.1" [curl]="7.80.0" [jq]="1.6" [tr]="9.0" [zenity]="3.42.1" [steam]="1.0.0")
changelog(){
	if [[ $branch == "stable" ]]; then
		md="https://raw.githubusercontent.com/aclist/dztui/dzgui/changelog.md"
	else
		md="https://raw.githubusercontent.com/aclist/dztui/testing/changelog.md"
	fi
	prefix="This window can be scrolled."
	echo $prefix
	echo ""
	curl -Ls "$md" | awk '/Unreleased/ {flag=1}flag'
}

depcheck(){
	for dep in "${!deps[@]}"; do
		command -v $dep 2>&1>/dev/null || (printf "Requires %s >=%s\n" $dep ${deps[$dep]}; exit 1)
	done
}
init_items(){
	#array order determines menu selector; this is destructive
items=(
	"Launch server list"
	"Quick connect to favorite server"
	"Connect by IP"
	"Add server by ID"
	"Add favorite server"
	"Delete server"
	"[NEW] Server browser"
	"List installed mods"
	"Toggle debug mode"
	"Report bug (opens in browser)"
	"Help file (opens in browser)"
	"View changelog"
	)
}
warn_and_exit(){
	zenity --info --title="DZGUI" --text="$1" --icon-name="dialog-warning" 2>/dev/null
	printf "[DZGUI] %s\n" "$check_config_msg"
	exit
}
warn(){
	zenity --info --title="DZGUI" --text="$1" --icon-name="dialog-warning" 2>/dev/null
}
info(){
	zenity --info --title="DZGUI" --text="$1" 2>/dev/null
}
set_api_params(){
	response=$(curl -s "$api" -H "Authorization: Bearer "$api_key"" -G -d "sort=-players" \
		-d "filter[game]=$game" -d "filter[ids][whitelist]=$list_of_ids")
	list_response=$response
	first_entry=1
}
query_api(){
	#TODO: prevent drawing list if null values returned without API error
	if [[ $one_shot_launch -eq 1 ]]; then
		list_of_ids="$fav"
	else
		if [[ -n $fav ]]; then
			list_of_ids="$whitelist,$fav"
		else
			list_of_ids="$whitelist"
		fi
	fi
	set_api_params
	if [[ "$(jq -r 'keys[]' <<< "$response")" == "errors" ]]; then
		code=$(jq -r '.errors[] .status' <<< $response)
		#TODO: fix granular api codes
		if [[ $code -eq 401 ]]; then
			warn_and_exit "Error $code: malformed API key"
		elif [[ $code -eq 500 ]]; then
			warn_and_exit "Error $code: malformed server list"
		fi

	fi
	if [[ -z $(echo $response | jq '.data[]') ]]; then
		warn_and_exit "API returned empty response. Check config file."
	fi
}
write_config(){
cat	<<-END
#Path to DayZ installation
steam_path="$steam_path"

#Your unique API key
api_key="$api_key"

#Comma-separated list of server IDs
whitelist="$whitelist"

#Favorite server to fast-connect to (limit one)
fav="$fav"

#Custom player name (optional, required by some servers)
name="$name"

#Set to 1 to perform dry-run and print launch options
debug="$debug"

#Toggle stable/testing branch
branch="$branch"

#Last seen news item
seen_news="$seen_news"

#Steam API key
steam_api="$steam_api"
	END
}
write_desktop_file(){
cat	<<-END
[Desktop Entry]
Version=1.0
Type=Application
Terminal=false
Exec=$sd_install_path/dzgui.sh
Name=DZGUI
Comment=dzgui
Icon=$sd_install_path/dzgui
Categories=Game
	END
}
freedesktop_dirs(){
	mkdir -p "$sd_install_path"
	mkdir -p "$freedesktop_path"
	#TODO: update url
	curl -s "$version_url" > "$sd_install_path/dzgui.sh"
	chmod +x "$sd_install_path/dzgui.sh"
	img_url="https://raw.githubusercontent.com/aclist/dztui/testing/images"
	for i in dzgui grid.png hero.png logo.png; do
		curl -s "$img_url/$i" > "$sd_install_path/$i"
	done
	write_desktop_file > "$freedesktop_path/dzgui.desktop"
	if [[ $is_steam_deck -eq 1 ]]; then
		write_desktop_file > "$HOME/Desktop/dzgui.desktop"
	fi
}
file_picker(){
	#TODO: unimplemented
	while true; do
	local path=$(zenity --file-selection --directory 2>/dev/null)
		if [[ -z "$path" ]] || [[ ! -d "$path" ]] || [[ ! "$path" =~ steamapps/common/DayZ ]]; then
			continue
		else
			echo "[DZGUI]" Set path to $path
			clean_path=$(echo -e "$path" | awk -F"/steamapps" '{print $1}')
			steam_path="$clean_path"
			return
		fi
	done
}
guess_path(){
	echo "# Checking for default DayZ path"
	path=$(find $HOME -type d -regex ".*/steamapps/common/DayZ$" -print -quit)
	if [[ -n "$path" ]]; then
		clean_path=$(echo -e "$path" | awk -F"/steamapps" '{print $1}')
		steam_path="$clean_path"
	else
		echo "# Searching for alternate DayZ path. This may take some time."
		path=$(find / -type d \( -path "/proc" -o -path "*/timeshift" -o -path "/tmp" -o -path "/usr" -o -path "/boot" -o -path "/proc" -o -path "/root" -o -path "/run" -o -path "/sys" -o -path "/etc" -o -path "/var" -o -path "/run" -o -path "/lost+found" \) -prune -o -regex ".*/steamapps/common/DayZ$" -print -quit 2>/dev/null)
			clean_path=$(echo -e "$path" | awk -F"/steamapps" '{print $1}')
			steam_path="$clean_path"
	fi
}
create_config(){
	while true; do
	player_input="$(zenity --forms --add-entry="Player name (required for some servers)" --add-entry="API key" --add-entry="Server 1 (you can add more later)" --title=DZGUI --text=DZGUI --add-entry="Server 2" --add-entry="Server 3" --add-entry="Server 4" $sd_res --separator="│" 2>/dev/null)"
	#explicitly setting IFS crashes zenity in loop
	#and mapfile does not support high ascii delimiters
	#so split fields with newline
	readarray -t args < <(echo "$player_input" | sed 's/│/\n/g')
	name="${args[0]}"
	api_key="${args[1]}"
	server_1="${args[2]}"
	server_2="${args[3]}"
	server_3="${args[4]}"
	server_4="${args[5]}"

	[[ -z $player_input ]] && exit
	if [[ -z $api_key ]]; then
		warn "API key: invalid value"
	elif [[ -z $server_1 ]]; then
		warn "Server 1: cannot be empty"
	elif [[ ! $server_1 =~ ^[0-9]+$ ]]; then
		warn "Server 1: only numeric IDs"
	elif [[ -n $server_2 ]] && [[ ! $server_2 =~ ^[0-9]+$ ]]; then
		warn "Server 2: only numeric IDs"
	elif [[ -n $server_3 ]] && [[ ! $server_3 =~ ^[0-9]+$ ]]; then
		warn "Server 3: only numeric IDs"
	elif [[ -n $server_4 ]] && [[ ! $server_3 =~ ^[0-9]+$ ]]; then
		warn "Server 4: only numeric IDs"
	else
	whitelist=$(echo "$player_input" | awk -F"│" '{OFS=","}{print $3,$4,$5,$6}' | sed 's/,*$//g' | sed 's/^,*//g')
	guess_path > >(zenity --width 500 --progress --auto-close --pulsate 2>/dev/null) &&
	echo "[DZGUI] Set path to $steam_path"
	#FIXME: tech debt: gracefully exit if user cancels search process
	mkdir -p $config_path; write_config > $config_file
	info "Config file created at $config_file."
	return
	fi
	done

}
err(){
	printf "[ERROR] %s\n" "$1"
}
varcheck(){
	[[ -z $api_key ]] && (err "Error in key: 'api_key'")
	[[ -z $whitelist ]] && (err "Error in key: 'whitelist'")
	[[ ! -d "$game_dir" ]] && (err "Malformed game path")
	[[ $whitelist =~ [[:space:]] ]] && (err "Separate whitelist values with commas")
}
run_depcheck() {
	if [[ -z $(depcheck) ]]; then 
		:
	else	
		zenity --warning --ok-label="Exit" --title="DZGUI" --text="$(depcheck)"
		exit
	fi
}
run_varcheck(){
	source $config_file
	workshop_dir="$steam_path/steamapps/workshop/content/$aid"
	game_dir="$steam_path/steamapps/common/DayZ"
	if [[ -z $(varcheck) ]]; then 
		:
	else	
		zenity --warning --width 500 --text="$(varcheck)" 2>/dev/null
		printf "[DZGUI] %s\n" "$check_config_msg"
		zenity --question --cancel-label="Exit" --text="Malformed config file. This is probably user error.\nStart first-time setup process again?" 2>/dev/null
		code=$?
		if [[ $code -eq 1 ]]; then
			exit
		else
			create_config
		fi
	fi
}
config(){
	if [[ ! -f $config_file ]]; then
		zenity --width 500 --info --text="Config file not found. Click OK to proceed to first-time setup." 2>/dev/null
		code=$?
		#prevent progress if user hits ESC
		if [[ $code -eq 1 ]]; then
			exit
		else
			create_config
		fi
	else
		source $config_file
	fi

}
open_mod_links(){
	link_file=$(mktemp)
	echo "<html>" > $link_file
	echo "<title>DZGUI</title>" >> $link_file
	echo "<h1>DZGUI</h1>" >> $link_file
	echo "<p>Open these links and subscribe to them on the Steam Workshop, then continue with the application prompts.<br><b>Note:</b> it may take some time for mods to synchronize before DZGUI can see them.<br>It can help to have Steam in an adjacent window so that you can see the downloads completing.</p>" >> $link_file
	n=1
	for i in $diff; do
		echo "$n. <a href=\"${workshop}$i\">${workshop}$i</a><br>"
		let n++
	done >> $link_file
	echo "</html>" >> $link_file
	browser "$link_file" &

}
steam_deck_mods(){	
	until [[ -z $diff ]]; do
		next=$(echo -e "$diff" | head -n1)
		zenity --question --ok-label="Open" --cancel-label="Cancel" --title="DZGUI" --text="Missing mods. Click [Open] to open mod $next in Steam Workshop and subscribe to it by clicking the green Subscribe button. After the mod is downloaded, return to this menu to continue validation." 2>/dev/null
		rc=$?
		if [[ $rc -eq 0 ]]; then
			echo "[DZGUI] Opening ${workshop}$next"
			steam steam://url/CommunityFilePage/$next 2>/dev/null &
			zenity --info --title="DZGUI" --ok-label="Next" --text="Click [Next] to continue mod check." 2>/dev/null
		else
			return
		fi
		compare
	done
}
manual_mod_install(){
	l=0
	if [[ $is_steam_deck -eq 0 ]]; then
		open_mod_links
		until [[ -z $diff ]]; do
			zenity --question --title="DZGUI" --ok-label="Next" --cancel-label="Cancel" --text="Opened mod links in browser. Click [Next] when all mods have been subscribed to. This dialog may reappear if clicking [Next] too soon before mods are synchronized in the background." 2>/dev/null
			rc=$?
			if [[ $rc -eq 0 ]]; then
			compare
			open_mod_links
		else
			return
			fi
		done
	else
		steam_deck_mods
	fi
	passed_mod_check
}
encode(){
	echo "$1" | md5sum | cut -c -8
}
stale_symlinks(){
	for l in $(find "$game_dir" -xtype l); do
		unlink $l
	done
}
legacy_symlinks(){
	for d in "$game_dir"/*; do
		if [[ $d =~ @[0-9]+-.+ ]]; then
			unlink "$d"
		fi
	done
	for d in "$workshop_dir"/*; do
		local id=$(awk -F"= " '/publishedid/ {print $2}' "$d"/meta.cpp | awk -F\; '{print $1}')
		local encoded_id=$(echo "$id" | awk '{printf("%c",$1)}' | base64 | sed 's/\//_/g; s/=//g; s/+/]/g')
		if [[ -h "$game_dir/@$encoded_id" ]]; then
			unlink "$game_dir/@$encoded_id"
		fi
	done
}
symlinks(){
	for d in "$workshop_dir"/*; do
		id=$(awk -F"= " '/publishedid/ {print $2}' "$d"/meta.cpp | awk -F\; '{print $1}')
		encoded_id=$(encode "$id")
		mod=$(awk -F\" '/name/ {print $2}' "$d"/meta.cpp | sed -E 's/[^[:alpha:]0-9]+/_/g; s/^_|_$//g')
		link="@$encoded_id"
		if [[ -h "$game_dir/$link" ]]; then
			:
		else
			printf "[DZGUI] Creating symlink for $mod\n"
			ln -fs "$d" "$game_dir/$link"
		fi
	done
}
passed_mod_check(){
	echo "[DZGUI] Passed mod check"
	stale_symlinks
	legacy_symlinks
	symlinks
	launch

}
connect(){
	#TODO: sanitize/validate input
	readarray -t qport_arr <<< "$qport_list"
	if [[ -z ${qport_arr[@]} ]]; then
		err "Failed to obtain query ports"
		return
	fi
	ip=$(echo "$1" | awk -F"$separator" '{print $1}')
	bid=$(echo "$1" | awk -F"$separator" '{print $2}')
	if [[ $2 == "ip" ]]; then
		fetch_mods_sa "$ip"
	else
		fetch_mods "$bid"
	fi
	validate_mods
	rc=$?
	[[ $rc -eq 1 ]] && return
	compare
	if [[ -n $diff ]]; then
		manual_mod_install
	else
		passed_mod_check
	fi
}
fetch_mods(){
	remote_mods=$(curl -s "$api" -H "Authorization: Bearer "$api_key"" -G -d filter[ids][whitelist]="$1" -d "sort=-players" \
	| jq -r '.data[] .attributes .details .modIds[]')
}
#TODO: deprecated (for now)
fetch_mods_sa(){
	sa_ip=$(echo "$1" | awk -F: '{print $1}')
	for i in ${qport_arr[@]}; do
		if [[ -n $(echo "$i" | awk -v ip=$ip '$0 ~ ip') ]]; then
			sa_port=$(echo $i | awk -v ip=$ip -F$separator '$0 ~ ip {print $2}')
		fi
	done
	echo "[DZGUI] Querying modlist on ${sa_ip}:${sa_port}"
	remote_mods=$(curl -Ls "https://dayzsalauncher.com/api/v1/query/$sa_ip/$sa_port" | jq -r '.result.mods[].steamWorkshopId')
	rc=$?
	if [[ $rc -eq 1 ]]; then
		err "Failed to fetch modlist"
		return
	fi
	qport_arr=()
}
prepare_ip_list(){
	ct=$(< "$1" jq '[.response.servers[]]|length')
	for((i=0;i<$ct;i++));do
		name=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].name')
		addr=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].addr')
		ip=$(echo "$addr" | awk -F: '{print $1}')
		players=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].players')
		max_players=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].max_players')
		gameport=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].gameport')
		ip_port=$(echo "$ip:$gameport")
		time=$(< $json jq --arg i $i -r '[.servers[]][($i|tonumber)].gametype' | grep -oP '(?<!\d)\d{2}:\d{2}(?!\d)')
		echo "$name"
		echo "$ip_port"
		echo "$players/$max_players"
		echo "$time"
	done
}

ip_table(){
	while true; do
	sel=$(prepare_ip_list "$meta_file" | zenity --width 1200 --height 800 --list --column=Name --column=IP --column=Players --column=Gametime --print-column=2 --separator=%% 2>/dev/null)
	if [[ $? -eq 1 ]]; then
		return_from_table=1
		return
	fi
		if [[ -z $sel ]]; then
			echo "No selection"
		else
			local gameport="$(echo "$sel" | awk -F: '{print $2}')"
			local ip="$(echo "$sel" | awk -F: '{print $1}')"
			local addr=$(< $json jq -r --arg gameport $gameport '.servers[]|select(.gameport == ($gameport|tonumber)).addr')
			local qport=$(echo "$addr" | awk -F: '{print $2}')
			local sa_ip=$(echo "$ip:$gameport%%$qport")
			qport_list="$sa_ip"
			connect "$sel" "ip"
		fi
	done
}
fetch_ip_metadata(){
	local meta_file=$(mktemp)
	source $config_file
	url="https://api.steampowered.com/IGameServersService/GetServerList/v1/?filter=\appid\221100\gameaddr\\$ip&key=$steam_api"
	curl -Ls "$url" > $meta_file
	json=$(mktemp)
	< $meta_file jq '.response' > $json
	res=$(< $meta_file jq -er '.response.servers[]' 2>/dev/null)
	if [[ ! $? -eq 0 ]]; then
		warn "Failed to retrieve IP metadata. Check IP or API key and try again."
		echo "[DZGUI] Failed to retrieve IP metadata"

	else
		ip_table
	fi
}

#TODO: local servers
#local_ip(){
#(^127\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^192\.168\.)
#}
add_steam_api(){
		mv $config_file ${config_path}dztuirc.old
		nr=$(awk '/steam_api=/ {print NR}' ${config_path}dztuirc.old)
		steam_api="steam_api=\"$steam_api\""
		awk -v "var=$steam_api" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > ${config_path}dztuirc
		echo "[DZGUI] Added Steam API key"
		zenity --info --title="DZGUI" --text="Added Steam API key to:\n\n${config_path}dztuirc\nIf errors occur, you can restore the file:\n${config_path}dztuirc.old" 2>/dev/null
		source $config_file
}
validate_ip(){
	echo "$1" | grep -qP '^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$'
}
connect_by_ip(){
	source $config_file
	if [[ -z $steam_api ]]; then
		steam_api=$(zenity --entry --text="Key 'steam_api' not present in config file. Enter Steam API key:" --title="DZGUI" 2>/dev/null)
		if [[ $? -eq 1 ]] ; then
			return
		elif [[ $steam_api -lt 32 ]]; then
			zenity --warning --title="DZGUI" --text="Check API key and try again."
			return
		else
			add_steam_api
		fi
	fi
	while true; do
		if [[ $return_from_table -eq 1 ]]; then
			return_from_table=0
			return
		fi
		ip=$(zenity --entry --text="Enter server IP" --title="DZGUI" 2>/dev/null)
		[[ $? -eq 1 ]] && return
		if validate_ip "$ip"; then
			fetch_ip_metadata
		else
			continue
		fi
	done
}
fetch_mods(){
	remote_mods=$(curl -s "$api" -H "Authorization: Bearer "$api_key"" -G -d filter[ids][whitelist]="$1" -d "sort=-players" \
	| jq -r '.data[] .attributes .details .modIds[]')
}
query_defunct(){
	max=${#modlist[@]}
	concat(){
	for ((i=0;i<$max;i++)); do
	   echo "publishedfileids[$i]=${modlist[$i]}&"
	done | awk '{print}' ORS=''
	}
	payload(){
		echo -e "itemcount=${max}&$(concat)"
	}
	post(){
		curl -s -X POST -H "Content-Type:application/x-www-form-urlencoded" -d "$(payload)" 'https://api.steampowered.com/ISteamRemoteStorage/GetPublishedFileDetails/v1/?format=json'
	}
	readarray -t newlist <<< $(post | jq -r '.[].publishedfiledetails[] | select(.result==1) .publishedfileid')
}
validate_mods(){
	url="https://steamcommunity.com/sharedfiles/filedetails/?id="
	newlist=()
	readarray -t modlist <<< $remote_mods
	query_defunct
}
server_modlist(){
	for i in "${newlist[@]}"; do
		printf "$i\n"
	done
}
compare(){
	diff=$(comm -23 <(server_modlist | sort) <(installed_mods | sort))
}

installed_mods(){
	ls -1 "$workshop_dir"
}
concat_mods(){
	if [[ -z ${remote_mods[@]} ]]; then
		return 1
	else
		readarray -t serv <<< "$(server_modlist)"
		for i in "${serv[@]}"; do
			id=$(awk -F"= " '/publishedid/ {print $2}' "$workshop_dir"/$i/meta.cpp | awk -F\; '{print $1}')
			encoded_id=$(encode $id)
			link="@$encoded_id;"
			echo -e "$link"
		done | tr -d '\n' | perl -ple 'chop'
	fi
}
launch(){
	mods=$(concat_mods)
	if [[ $debug -eq 1 ]]; then
		launch_options="steam -applaunch $aid -connect=$ip -nolauncher -nosplash -skipintro \"-mod=$mods\""
		print_launch_options="$(printf "[DEBUG] This is a dry run. These options would have been used to launch the game:\n\n$launch_options\n" | fold -w 60)"
		zenity --question --title="DZGUI" --ok-label="Write to file" --cancel-label="Back"\
			--text="$print_launch_options" 2>/dev/null
		if [[ $? -eq 0 ]]; then
			source_script=$(realpath "$0")
			source_dir=$(dirname "$source_script")
			echo "$launch_options" > "$source_dir"/options.log
			echo "[DZGUI] Wrote launch options to $source_dir/options.log"
			zenity --info --width 500 --title="DZGUI" --text="Wrote launch options to \n$source_dir/options.log" 2>/dev/null
		fi

	else
		echo "[DZGUI] All OK. Launching DayZ"
		zenity --width 500 --title="DZGUI" --info --text="Launch conditions satisfied.\nDayZ will now launch after clicking [OK]." 2>/dev/null
		steam -applaunch $aid -connect=$ip -nolauncher -nosplash -skipintro -name=$name \"-mod=$mods\"
		exit
	fi
		one_shot_launch=0
}
browser(){
	if [[ -n "$BROWSER" ]]; then
		"$BROWSER" "$1" 2>/dev/null
	else
		xdg-open "$1" 2>/dev/null
	fi
}
report_bug(){
	echo "[DZGUI] Opening issues page in browser"
	if [[ $is_steam_deck -eq 1 ]]; then
		steam steam://openurl/"$git_url" 2>/dev/null
	elif [[ $is_steam_deck -eq 0 ]]; then
		browser "$git_url" 2>/dev/null &
	fi
}
help_file(){
	echo "[DZGUI] Opening help file in browser"
	if [[ $is_steam_deck -eq 1 ]]; then
		steam steam://openurl/"$help_url" 2>/dev/null
	elif [[ $is_steam_deck -eq 0 ]]; then
		browser "$help_url" 2>/dev/null &
	fi
}
set_mode(){
	if [[ $debug -eq 1 ]]; then
		mode=debug
	else
		mode=normal
	fi
}
delete_by_id(){
	new_whitelist="whitelist=\"$(echo "$whitelist" | sed "s/,$server_id$//;s/^$server_id,//;s/,$server_id,/,/")\""
	mv $config_file ${config_path}dztuirc.old
	nr=$(awk '/whitelist=/ {print NR}' ${config_path}dztuirc.old)
	awk -v "var=$new_whitelist" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > ${config_path}dztuirc
	echo "[DZGUI] Removed $server_id from key 'whitelist'"
	zenity --info --title="DZGUI" --text="Removed "$server_id" from:\n${config_path}dztuirc\nIf errors occur, you can restore the file:\n${config_path}dztuirc.old" 2>/dev/null
	source $config_file
}
delete_or_connect(){
		if [[ $delete -eq 1 ]]; then
			server_name=$(echo "$sel" | awk -F"%%" '{print $1}')
			server_id=$(echo "$sel" | awk -F"%%" '{print $2}')
			zenity --question --text="Delete this server? \n$server_name"
			if [[ $? -eq 0 ]]; then
				delete_by_id $server_id
			fi
		else
			connect $sel
		fi
}
populate(){
	while true; do
		if [[ $delete -eq 1 ]]; then
			cols="--column="Server" --column="ID""
			set_header "delete"
		else
			cols="--column="Server" --column="IP" --column="Players" --column="Gametime" --column="Status" --column="ID" --column="Ping""
			set_header ${FUNCNAME[0]}
		fi
		rc=$?
		if [[ $rc -eq 0 ]]; then 
			if [[ -z $sel ]]; then
				warn "No item was selected."
			else
				delete_or_connect
				return
			fi
		else
			delete=0
			return
		fi
	done
}
list_mods(){
	if [[ -z $(installed_mods) || -z $(find $workshop_dir -maxdepth 2 -name "*.cpp" | grep .cpp) ]]; then
		zenity --info --text="No mods currently installed or incorrect path given" $sd_res 2>/dev/null
	else
		for d in $(find $game_dir/* -maxdepth 1 -type l); do
			dir=$(basename $d)
			awk -v d=$dir -F\" '/name/ {printf "%s\t%s\n", $2,d}' "$gamedir"/$d/meta.cpp
		done | sort 
	fi
}
fetch_query_ports(){
	qport_list=$(echo "$response" | jq -r '.data[] .attributes | "\(.ip):\(.port)%%\(.portQuery)"')
}
connect_to_fav(){
	if [[ -n $fav ]]; then
		one_shot_launch=1
		query_api
		fetch_query_ports
		echo "[DZGUI] Attempting connection to $fav_label"
		connect "$qport_list"
		one_shot_launch=0
	else
		warn "No fav server configured"
	fi

}
set_header(){
	if [[ $1 == "delete" ]]; then
		sel=$(cat $tmp | zenity $sd_res --list $cols --title="DZGUI" --text="DZGUI $version | Mode: $mode | Branch: $branch | Fav: $fav_label" \
			--separator="$separator" --print-column=1,2 --ok-label="Delete" 2>/dev/null)
	elif [[ $1 == "populate" ]]; then
		sel=$(cat $tmp | zenity $sd_res --list $cols --title="DZGUI" --text="DZGUI $version | Mode: $mode | Branch: $branch | Fav: $fav_label" \
			--separator="$separator" --print-column=2,6 2>/dev/null)
	elif [[ $1 == "main_menu" ]]; then
		sel=$(zenity $sd_res --list --title="DZGUI" --text="${news}DZGUI $version | Mode: $mode | Branch: $branch | Fav: $fav_label" \
		--cancel-label="Exit" --ok-label="Select" --column="Select launch option" --hide-header "${items[@]}" 2>/dev/null)
	fi
}
toggle_branch(){
	mv $config_file ${config_path}dztuirc.old
	nr=$(awk '/branch=/ {print NR}' ${config_path}dztuirc.old)
	if [[ $branch == "stable"  ]]; then
		branch="testing"
	else
		branch="stable"
	fi
	flip_branch="branch=\"$branch\""
	awk -v "var=$flip_branch" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > $config_file
	printf "[DZGUI] Toggled branch to '$branch'\n"
	source $config_file
}
generate_log(){
	cat <<-DOC
	Version: $version
	Branch: $branch
	Whitelist: $whitelist
	Path: $steam_path
	Linux: $(uname -mrs)

	Mods:
	$(list_mods)
	DOC
}
debug_menu(){
	debug_list=(
		"Toggle branch"
		"Generate debug log"
		)
	debug_sel=$(zenity --list --width=1280 --height=800 --column="Options" --title="DZGUI" --hide-header "${debug_list[@]}" 2>/dev/null)
	if [[ $debug_sel == "${debug_list[0]}" ]]; then
		enforce_dl=1
		toggle_branch &&
		check_version
	elif [[ $debug_sel == "${debug_list[1]}" ]]; then
		source_script=$(realpath "$0")
		source_dir=$(dirname "$source_script")
		generate_log > "$source_dir/log"
		printf "[DZGUI] Wrote log file to %s/log\n" "$source_dir"
		zenity --info --width 500 --title="DZGUI" --text="Wrote log file to \n$source_dir/log" 2>/dev/null
	fi
}
query_and_connect(){
	query_api
	parse_json 
	#TODO: create logger function
	echo "[DZGUI] Checking response time of servers"
	create_array | zenity --width 500 --progress --pulsate --title="DZGUI" --auto-close 2>/dev/null
	rc=$?
	if [[ $rc -eq 1 ]]; then
		:
	else
		populate
	fi
}
exclude_full(){
	response=$(echo "$response" | jq '[.[]|select(.players!=.max_players)]')
}
exclude_empty(){
	response=$(echo "$response" | jq '[.[]|select(.players!=0)]')
}
filter_maps(){
	echo "# Filtering maps"
	[[ $ret -eq 98 ]] && return
	local maps=$(echo "$response" | jq -r '.[].map//empty|ascii_downcase' | sort -u) 
	local map_sel=$(echo "$maps" | zenity --list --column="Check" --width=1200 --height=800 2>/dev/null --title=DZGUI --text="Select map")
	echo "[DZGUI] Selected '$map_sel'"
	if [[ -z $map_sel ]]; then
		ret=97
		return
	fi
	echo "100"
	response=$(echo "$response" | jq --arg map "$map_sel" '[.[]|select(.map)//empty|select(.map|ascii_downcase == $map)]')
}
exclude_daytime(){
	response=$(echo "$response" | jq '[.[]|select(.gametype|test(",[0][6-9]:|,[1][0-6]:")|not)]')
}
exclude_nighttime(){
	response=$(echo "$response" | jq '[.[]|select(.gametype|test(",[1][7-9]:|,[2][0-4]:|[0][0-5]:")|not)]')
}
keyword_filter(){
	response=$(echo "$response" | jq --arg search "$search" '[.[]|select(.name|ascii_downcase | contains($search))]')
}
exclude_lowpop(){
	response=$(echo "$response" | jq '[.[]|select(.players > 9)]')
}
exclude_nonascii(){
	response=$(echo "$response" | jq -r '[.[]|select(.name|test("^([[:ascii:]])*$"))]')
}
strip_null(){
	response=$(echo "$response" | jq -r '[.[]|select(.map//empty)]')
}
local_latlon(){
	local local_ip=$(dig +short myip.opendns.com @resolver1.opendns.com)
	local url="http://ip-api.com/json/$local_ip" 
	local res=$(curl -Ls "$url" | jq -r '"\(.lat),\(.lon)"')
	local_lat=$(echo "$res" | awk -F, '{print $1}')
	local_lon=$(echo "$res" | awk -F, '{print $2}')
}
disabled(){
	if [[ -z ${disabled[@]} ]]; then
		printf "%s" "-"
	else
		for((i=0;i<${#disabled[@]};i++)); do
			if [[ $i < $((${#disabled[@]}-1)) ]]; then
				printf "%s, " "${disabled[$i]}"
			else
				printf "%s" "${disabled[$i]}"
			fi

		done
	fi
}
pagination(){
	if [[ ${#qport[@]} -eq 1 ]]; then
		entry=server
	else
		entry=servers
	fi
	printf "DZGUI $version │ "
	printf "Mode: $mode │"
	printf "Fav: $fav_label \n"
	printf "Included:  %s │ " "$filters"
	printf "Excluded: %s │ " "$(disabled)"
	if [[ -n $search ]]; then
		printf "Keyword:  %s │ " "$search"
	fi
	printf "Returned: %s %s" "${#qport[@]}" "$entry"
}
check_geo_file(){
	local db_file="https://github.com/aclist/dztui/releases/download/browser/ips.csv.gz"
	local gzip="$helpers_path/ips.csv.gz"
	if [[ ! -f $geo_file ]]; then
		run(){
		mkdir -p "$helpers_path"
		echo "# Fetching geolocation DB"
		curl -Ls "$db_file" > "$gzip"
		echo "# Extracting coordinates"
		gunzip "$gzip"
		echo "# Preparing helper file"
		curl -Ls "$km_helper_url" > "$km_helper"
		echo "100"
		}
		run > >(zenity --pulsate --progress --auto-close --width=500 2>/dev/null)
	fi 
}
choose_filters(){
	sels=$(zenity --title=DZGUI --text="Server search" --list --checklist --column "Check" --column "Option" --hide-header TRUE "All maps" TRUE "Daytime" TRUE "Nighttime" False "Empty" False "Full" False "Low population" FALSE "Non-ASCII titles" FALSE "Keyword search" --width 1200 --height 800 2>/dev/null)
	if [[ $sels =~ Keyword ]]; then
		search=$(zenity --entry --text="Search (case insensitive)" --width=500 --title=DZGUI 2>/dev/null | awk '{print tolower($0)}')
		[[ -z $search ]] && { ret=97; return; }
	fi	
	[[ -z $sels ]] && return
	filters=$(echo "$sels" | sed 's/|/, /g')
	echo "[DZGUI] Filters: $filters"
}
get_dist(){
	local given_ip="$1"
	local subnet="$(echo "$given_ip" | awk -F. '{OFS="."}{print $1,$2,$3}')"
	local host="$(echo "$given_ip" | awk -F. '{print $4}')"
	local remote=$(grep -E "^$subnet\." "$geo_file" | awk -F[.,] -v var=$host '$4 < var {print $0}' \
		| tail -n1 | awk -F, '{print $7,$8}')
	local remote_lat=$(echo "$remote" | awk '{print $1}')
	local remote_lon=$(echo "$remote" | awk '{print $2}')
	if [[ -z $remote_lat ]]; then
		local dist="Unknown"
		echo "$dist"
	else
		local dist=$(python "$km_helper" "$local_lat" "$local_lon" "$remote_lat" "$remote_lon")
		printf "%05d %s" "$dist" "km"
	fi
}
prepare_filters(){
	echo "# Preparing list"
	[[ ! "$sels" =~ "Full" ]] && { exclude_full; disabled+=("Full") ; }
	[[ ! "$sels" =~ "Empty" ]] && { exclude_empty; disabled+=("Empty") ; }
	[[ ! "$sels" =~ "Daytime" ]] && { exclude_daytime; disabled+=("Daytime") ; }
	[[ ! "$sels" =~ "Nighttime" ]] && { exclude_nighttime; disabled+=("Nighttime") ; }
	[[ ! "$sels" =~ "Low population" ]] && { exclude_lowpop; disabled+=("Low-pop") ; }
	[[ ! "$sels" =~ "Non-ASCII titles" ]] && { exclude_nonascii; disabled+=("Non-ASCII") ; }
	[[ -n "$search" ]] && keyword_filter
	strip_null
	echo "100"
}
munge_servers(){
	if [[ ! "$sels" =~ "All maps" ]]; then
		filter_maps > >(zenity --pulsate --progress --auto-close --width=500 2>/dev/null)
		disabled+=("All maps")
	fi
	[[ $ret -eq 97 ]] && return
	prepare_filters > >(zenity --pulsate --progress --auto-close --width=500 2>/dev/null)
	if [[ $(echo "$response" | jq 'length') -eq 0 ]]; then
		zenity --error --text="No matching servers" 2>/dev/null
		return
	fi
	local addr=$(echo "$response" | jq -r '.[].addr' | awk -F: '{print $1}')
	local gameport=$(echo "$response" | jq -r '.[].gameport')
	local qport=$(echo "$response" | jq -r '.[].addr' | awk -F: '{print $2}')
	local name=$(echo "$response" | jq -r '.[].name')
	local players=$(echo "$response" | jq -r '.[].players')
	local max=$(echo "$response" | jq -r '.[].max_players')
	local map=$(echo "$response" | jq -r '.[].map|ascii_downcase')
	local gametime=$(echo "$response" | jq -r '.[].gametype' | grep -oE '[0-9]{2}:[0-9]{2}$')
	readarray -t qport <<< $qport
	readarray -t gameport <<< $gameport
	readarray -t addr <<< $addr
	readarray -t name <<< $name
	readarray -t players <<< $players
	readarray -t map <<< $map
	readarray -t max <<< $max
	readarray -t gametime <<< $gametime
	if [[ $is_steam_deck -eq 0 ]]; then
		sd_res="--width=1920 --height=1080"
	fi

	for((i=0;i<${#qport[@]};i++)); do
		printf  "%s\n%s\n%s\n%03d\n%03d\n%s\n%s:%s\n%s\n" "${map[$i]}" "${name[$i]}" "${gametime[$i]}" \
		"${players[$i]}" "${max[$i]}" "$(get_dist ${addr[$i]})" "${addr[$i]}" "${gameport[$i]}" "${qport[$i]}"
		done | zenity --text="$(pagination)" --title=DZGUI --list --column=Map --column=Name --column=Gametime --column=Players --column=Max --column=Distance --column=IP --column=Qport $sd_res --print-column=7,8 --separator=%% 2>/dev/null
}
server_browser(){
	unset ret
	file=$(mktemp)
	local limit=20000
	local url="https://api.steampowered.com/IGameServersService/GetServerList/v1/?filter=\appid\221100&limit=$limit&key=$steam_api"
	check_geo_file #> >(zenity --pulsate --progress --auto-close 2>/dev/null)
	command -v python 2>&1>/dev/null || { zenity --error --width=500 --text="Requires python" 2>/dev/null ; return ; }
	local_latlon
	choose_filters
	[[ -z $sels ]] && return
	[[ $ret -eq 97 ]] && return
	#TODO: some error handling here
	curl -Ls "$url" > $file
	response=$(< $file jq -r '.response.servers')
		local sel=$(munge_servers)
		if [[ -z $sel ]]; then
			unset filters
			unset search
			ret=98
			return
		fi
		local sel_ip=$(echo "$sel" | awk -F%% '{print $1}')
		local sel_port=$(echo "$sel" | awk -F%% '{print $2}')
		qport_list="$sel_ip%%$sel_port"
		if [[ -n "$sel_ip" ]]; then
			connect "$sel_ip" "ip"
		else
			return
		fi
}

main_menu(){
	print_news
	set_mode
	if [[ $debug -eq 1 ]]; then
		items+=("Debug options")
	fi
	if [[ -n $fav ]]; then
		items[4]="Change favorite server"
	fi
	while true; do
		set_header ${FUNCNAME[0]}
	rc=$?
	if [[ $rc -eq 0 ]]; then
		if [[ -z $sel ]]; then
			warn "No item was selected."
		elif [[ $sel == "${items[0]}" ]]; then
			query_and_connect
		elif [[ $sel == "${items[1]}" ]]; then
			connect_to_fav
		elif [[ $sel == "${items[2]}" ]]; then
			connect_by_ip
		elif [[ $sel == "${items[3]}" ]]; then
			add_by_id
		elif [[ $sel == "${items[4]}" ]]; then
			add_by_fav
		elif [[ $sel == "${items[5]}" ]]; then
			delete=1
			query_and_connect
		elif [[ $sel == "${items[6]}" ]]; then
			server_browser 
		elif [[ $sel == "${items[7]}" ]]; then
			list_mods | sed 's/\t/\n/g' | zenity --list --column="Mod" --column="Symlink" --title="DZGUI" $sd_res --print-column="" 2>/dev/null
		elif [[ $sel == "${items[8]}" ]]; then
			toggle_debug
			main_menu
			return
		elif [[ $sel == "${items[9]}" ]]; then
			report_bug
		elif [[ $sel == "${items[10]}" ]]; then
			help_file
		elif [[ $sel == "${items[11]}" ]]; then
			changelog | zenity --text-info $sd_res --title="DZGUI" 2>/dev/null
		elif [[ $sel == "${items[12]}" ]]; then
			debug_menu
		else
			warn "This feature is not yet implemented."
		fi
	else
		return
	fi
	done
}
page_through(){
	list_response=$(curl -s "$page")
	list=$(echo "$list_response" | jq -r '.data[] .attributes | "\(.name)\t\(.ip):\(.port)\t\(.players)/\(.maxPlayers)\t\(.details.time)\t\(.status)\t\(.id)"')
	idarr+=("$list")
	parse_json
}
parse_json(){
	page=$(echo "$list_response" | jq -r '.links.next?')
	if [[ $first_entry -eq 1 ]]; then
		list=$(echo "$list_response" | jq -r '.data[] .attributes | "\(.name)\t\(.ip):\(.port)\t\(.players)/\(.maxPlayers)\t\(.details.time)\t\(.status)\t\(.id)"')
		idarr+=("$list")
		first_entry=0
	fi
	if [[ "$page" != "null" ]]; then
		list=$(echo "$list_response" | jq -r '.data[] .attributes | "\(.name)\t\(.ip):\(.port)\t\(.players)/\(.maxPlayers)\t\(.details.time)\t\(.status)\t\(.id)"')
		idarr+=("$list")
		page_through
	else
		printf "%s\n" "${idarr[@]}" > $tmp
		idarr=()
		fetch_query_ports
	fi
}
check_ping(){
	ping_ip=$(echo "$1" | awk -F'\t' '{print $2}' | awk -F: '{print $1}')
	ms=$(ping -c 1 -W 1 "$ping_ip" | awk -Ftime= '/time=/ {print $2}')
	if [[ -z $ms ]]; then
		echo "Timeout"
	else	
		echo "$ms"
	fi
}
create_array(){
	list=$(cat $tmp) 
	#TODO: improve error handling for null values
	lc=1
	while read line; do
		name=$(echo "$line" | awk -F'\t' '{print $1}')
		#truncate names
		if [[ $(echo "$name" | wc -m) -gt 50 ]]; then
			name="$(echo "$name" | awk '{print substr($0,1,50) "..."}')"
		else
			:
		fi
		ip=$(echo "$line" | awk -F'\t' '{print $2}')
		players=$(echo "$line" | awk -F'\t' '{print $3}')
		time=$(echo "$line" | awk -F'\t' '{print $4}')
		stat=$(echo "$line" | awk -F'\t' '{print $5}')

		#yad only
		#[[ $stat == "online" ]] && stat="<span color='#77ff33'>online</span>" || :

		#TODO: probe offline return codes
		id=$(echo "$line" | awk -F'\t' '{print $6}')
		tc=$(awk 'END{print NR}' $tmp)
		if [[ $delete -eq 1 ]]; then
			declare -g -a rows=("${rows[@]}" "$name" "$id")
		else
			echo "# Checking ping: $lc/$tc"
			ping=$(check_ping "$line")
			declare -g -a rows=("${rows[@]}" "$name" "$ip" "$players" "$time" "$stat" "$id" "$ping")
		fi
		let lc++
	done <<< "$list" 

	for i in "${rows[@]}"; do echo -e "$i"; done > $tmp 
}
set_fav(){
	#TODO: test API key here and return errors
	echo "[DZGUI] Querying favorite server"
	query_api
	fav_label=$(curl -s "$api" -H "Authorization: Bearer "$api_key"" -G -d "filter[game]=$game" -d "filter[ids][whitelist]=$fav" \
	| jq -r '.data[] .attributes .name')
	if [[ -z $fav_label ]]; then
		fav_label=null
	fi
	echo "[DZGUI] Setting favorite server to '$fav_label'"
}
check_unmerged(){
	if [[ -f ${config_path}.unmerged ]]; then
		printf "[DZGUI] Found new config format, merging changes\n"
		merge_config
		rm ${config_path}.unmerged
	fi
}
merge_config(){
	source $config_file
	mv $config_file ${config_path}dztuirc.old
	write_config > $config_file
	printf "[DZGUI] Wrote new config file to %sdztuirc\n" $config_path
	zenity --info --width 500 --title="DZGUI" --text="Wrote new config format to \n${config_path}dztuirc\nIf errors occur, you can restore the file:\n${config_path}dztuirc.old" 2>/dev/null

}
download_new_version(){
	if [[ $is_steam_deck -eq 1 ]]; then
		freedesktop_dirs
	fi
	source_script=$(realpath "$0")
	source_dir=$(dirname "$source_script")
	mv $source_script $source_script.old
	curl -Ls "$version_url" > $source_script
	rc=$?
	if [[ $rc -eq 0 ]]; then
		echo "[DZGUI] Wrote $upstream to $source_script"
		chmod +x $source_script
		touch ${config_path}.unmerged
		zenity --question --width 500 --title="DZGUI" --text "DZGUI $upstream successfully downloaded.\nTo view the changelog, select Changelog.\nTo use the new version, select Exit and restart." --ok-label="Changelog" --cancel-label="Exit" 2>/dev/null
		code=$?
		if [[ $code -eq 0 ]]; then
			changelog | zenity --text-info $sd_res --title="DZGUI" 2>/dev/null
			exit
		elif [[ $code -eq 1 ]]; then
			exit
		fi
	else
		mv $source_script.old $source_script
		zenity --info --title="DZGUI" --text "Failed to download new version." 2>/dev/null
		return
	fi

}
check_branch(){
	if [[ $branch == "stable" ]]; then
		version_url="$stable_url"
	elif [[ $branch == "testing" ]]; then
		version_url="$testing_url"
	fi
	upstream=$(curl -Ls "$version_url" | awk -F= '/^version=/ {print $2}')
}
enforce_dl(){
		download_new_version
}
prompt_dl(){    
	zenity --question --title="DZGUI" --text "Version conflict.\n\nYour branch:\t\t$branch\nYour version\t\t$version\nUpstream version:\t\t$upstream\n\nVersion updates introduce important bug fixes and are encouraged.\n\nAttempt to download latest version?" --width=500 --ok-label="Yes" --cancel-label="No" 2>/dev/null
	rc=$?
	if [[ $rc -eq 1 ]]; then
		return
	else
		download_new_version
	fi
}
check_version(){
	if [[ ! -f $config_file ]]; then : ; else source $config_file; fi
	if [[ -z $branch ]]; then
		branch="stable"
	fi
	check_branch
	[[ ! -d "$HOME/dzgui" ]] && freedesktop_dirs
	if [[ $version == $upstream ]]; then
		check_unmerged
	else
		echo "[DZGUI] Upstream ($upstream) != local ($version)"
		if [[ $enforce_dl -eq 1 ]]; then
			enforce_dl
		else
			prompt_dl
		fi
	fi
}
check_architecture(){
	cpu=$(cat /proc/cpuinfo | grep "AMD Custom APU 0405")
	if [[ -n "$cpu" ]]; then
		is_steam_deck=1
		echo "[DZGUI] Setting architecture to 'Steam Deck'"
	else
		is_steam_deck=0
		echo "[DZGUI] Setting architecture to 'desktop'"
	fi
}
add_by_id(){
	#FIXME: prevent redundant creation of existent IDs (for neatness)
	while true; do
		id=$(zenity --entry --text="Enter server ID" --title="DZGUI" 2>/dev/null)
		rc=$?
		if [[ $rc -eq 1 ]]; then
			return
		else
			if [[ ! $id =~ ^[0-9]+$ ]]; then
				zenity --warning --title="DZGUI" --text="Invalid ID" 2>/dev/null
			else
				new_whitelist="whitelist=\"$whitelist,$id\""
				mv $config_file ${config_path}dztuirc.old
				nr=$(awk '/whitelist=/ {print NR}' ${config_path}dztuirc.old)
				awk -v "var=$new_whitelist" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > ${config_path}dztuirc
				echo "[DZGUI] Added $id to key 'whitelist'"
				zenity --info --title="DZGUI" --text="Added "$id" to:\n${config_path}dztuirc\nIf errors occur, you can restore the file:\n${config_path}dztuirc.old" 2>/dev/null
				source $config_file
				return
			fi
		fi
	done
}
toggle_debug(){
	mv $config_file ${config_path}dztuirc.old
	nr=$(awk '/debug=/ {print NR}' ${config_path}dztuirc.old)
	if [[ $debug -eq 1 ]]; then
		debug=0
		items=()
		init_items
	else
		debug=1
	fi
	flip_debug="debug=\"$debug\""
	awk -v "var=$flip_debug" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > $config_file
	printf "[DZGUI] Toggled debug flag to '$debug'\n"
	source $config_file

}
setup(){
	if [[ -n $fav ]]; then
		set_fav
		items[4]="Change favorite server"
	fi
}
check_map_count(){
	count=1048576
	echo "[DZGUI] Checking system map count"
	if [[ $(sysctl -q vm.max_map_count | awk -F"= " '{print $2}') -lt $count ]]; then 
		map_warning=$(zenity --question --width 500 --title="DZGUI" --text "System map count must be $count or higher to run DayZ with Wine. Increase map count and make this change permanent? (will prompt for sudo password)" 2>/dev/null)
		if [[ $? -eq 0 ]]; then
			pass=$(zenity --password)
			sudo -S <<< "$pass" sh -c "echo 'vm.max_map_count=1048576' > /etc/sysctl.d/dayz.conf"
			echo ""

		fi
	fi
}
add_by_fav(){
while true; do
	fav_id=$(zenity --entry --text="Enter server ID" --title="DZGUI" 2>/dev/null)
	rc=$?
	if [[ $rc -eq 1 ]]; then
		return
	else
		if [[ ! $fav_id =~ ^[0-9]+$ ]]; then
			zenity --warning --title="DZGUI" --text="Invalid ID"
		else
			new_fav="fav=\"$fav_id\""
			mv $config_file ${config_path}dztuirc.old
			nr=$(awk '/fav=/ {print NR}' ${config_path}dztuirc.old)
			awk -v "var=$new_fav" -v "nr=$nr" 'NR==nr {$0=var}{print}' ${config_path}dztuirc.old > ${config_path}dztuirc
			echo "[DZGUI] Added $fav_id to key 'fav'"
			zenity --info --title="DZGUI" --text="Added "$fav_id" to:\n${config_path}dztuirc\nIf errors occurred, you can restore the file:\n${config_path}dztuirc.old" 2>/dev/null
			source $config_file
			set_fav
			items[4]="Change favorite server"
			return
		fi
	fi
done
}
#cleanup(){
#	rm $config_path/.lockfile
#}
lock(){
	if [[ ! -f $config_path/.lockfile ]]; then
		touch $config_path/.lockfile
	fi
	pid=$(cat $config_path/.lockfile)
	ps -p $pid -o pid= >/dev/null 2>&1
	res=$?
	if [[ $res -eq 0 ]]; then
		echo "[DZGUI] Already running ($pid)"
		exit
	elif [[ $pid == $$ ]]; then
		:
	else
		echo $$ > $config_path/.lockfile
	fi
}
main(){
	lock
	run_depcheck
	check_architecture
	check_version
	check_map_count
	config
	run_varcheck
	init_items
	setup
	main_menu
}

main
#trap cleanup EXIT