#!/bin/sh

DAYZ_GAME_ID=221100
DAYZ_SERVER_ID=223350
LOCAL_MODS_DIR="${HOME}/.steam/debian-installation/steamapps/workshop/content/$DAYZ_GAME_ID"
STEAM_USER="yzaddayz"
REMOTE_MAPS="/mnt/dayz/stock/maps"

alias do_sync='rsync -rvltDhu --delete --partial --progress'

msg() {
	printf '[*] %s\n' "$*"
}

# ====================================================================================

update_server() {
	msg "------------------ UPDATING DAYZ SERVER -------------------"

	LOCAL_INSTALL_DIR="${HOME}/.steam/debian-installation/steamapps/common/DayZServer"
	REMOTE_INSTALL_DIR="/mnt/dayz/stock/DayZServer"

	steamcmd -tcp +login "$STEAM_USER" +app_update "$DAYZ_GAME_ID" +quit
	steamcmd -tcp +login "$STEAM_USER" +app_update "$DAYZ_SERVER_ID" +quit

	do_sync "$LOCAL_INSTALL_DIR"/ "$REMOTE_INSTALL_DIR"
	msg "------- DONE UPDATING SERVER ---------------------"
}

# args: $1=server_name
update_mods() {
	MODS_FILE="$HOME/modlists/$1.txt"
	REMOTE_MODS_DIR="/mnt/dayz/mods/$1"
	mkdir -p "$REMOTE_MODS_DIR"

	tempfile=/tmp/mods-to-download.txt
	:> "$tempfile"

	while read -r mod ; do
		# skip comments, blank lines
		case "$mod" in
			\#*|'')
				;;
			*)
				mod=${mod%%^*}
				printf "+workshop_download_item $DAYZ_GAME_ID %s\n" "$mod" >> "$tempfile"
				mkdir -p "$LOCAL_MODS_DIR/$mod"
		esac
	done < "$MODS_FILE"

	msg "----------- DOWNLOAD MODS -------------"
	steamcmd -tcp +login "$STEAM_USER" $(cat "$tempfile" | xargs) +quit || exit 1

	msg "----------- RENAMING MODS -------------"

	rm -rf "$HOME/mods_to_copy" 2>/dev/null ||:
	mkdir -p "$HOME/mods_to_copy"

	:> "$HOME/mods_to_copy/mods.txt"
	while read -r mod ; do
		# skip comments, blank lines
		case "$mod" in
			\#*|'')
				;;
			*)
				mod_id=${mod%%^*}
				mod_name=${mod##*^}
				do_sync "$LOCAL_MODS_DIR/$mod_id"/ "$HOME/mods_to_copy/@${mod_name}"
				printf '@%s\n' "$mod_name" >> "$HOME/mods_to_copy/mods.txt"
		esac
	done < "$MODS_FILE"

	msg "----------- SYNCING MODS -------------"
	do_sync "$HOME/mods_to_copy"/ "$REMOTE_MODS_DIR"

	rm "$tempfile" 2>/dev/null ||:
	rm -rf "$HOME/mods_to_copy" 2>/dev/null ||:
}

update_stock_maps() {
	msg "----------- UPDATING MAPS -------------"
	cherno=dayzOffline.chernarusplus
	namalsk=regular.namalsk
	takistan=Offline.TakistanPlus
	NAMALSK_MOD_ID=2289461232
	TAKISTAN_MOD_ID=2563233742

	do_sync \
		"${HOME}/.steam/debian-installation/steamapps/common/DayZServer/mpmissions/$cherno"/ \
		"$REMOTE_MAPS/$cherno"

	msg "Updating Namalsk Survival"
	steamcmd -tcp +login "$STEAM_USER" +workshop_download_item "$DAYZ_GAME_ID" "$NAMALSK_MOD_ID" +quit || exit 1
	if [ -d "$LOCAL_MODS_DIR/$NAMALSK_MOD_ID/Extras/Regular/$namalsk" ] ; then
		do_sync "$LOCAL_MODS_DIR/$NAMALSK_MOD_ID/Extras/Regular/$namalsk"/ "$REMOTE_MAPS/$namalsk" || \
			die "failed to copy Namalsk map files"
	fi

	msg "Updating Optimized Namalsk Server PBOs"
	#NAMALSK_OPTIMIZED
	steamcmd -tcp +login "$STEAM_USER" +workshop_download_item "$DAYZ_GAME_ID" "$NAMALSK_MOD_ID" +quit || exit 1

	msg "Updating TakistanPlus"
	steamcmd -tcp +login "$STEAM_USER" +workshop_download_item "$DAYZ_GAME_ID" "$TAKISTAN_MOD_ID" +quit || exit 1
	if [ -d "$LOCAL_MODS_DIR/$TAKISTAN_MOD_ID/Mission/$takistan" ] ; then
		do_sync "$LOCAL_MODS_DIR/$TAKISTAN_MOD_ID/Mission/$takistan"/ "$REMOTE_MAPS/$takistan" || \
			die "failed to copy Takistan map files"
	fi


	msg "NOTE: deer isle doesn't get automatic updates... Skipping"
}

main () {
	update_server
	update_stock_maps

	for server in $(ls "$HOME/modlists" | xargs | sed 's/\.txt//g') ; do
		rm -rf "$HOME/.steam/debian-installation/steamapps/workshop/downloads"
		mkdir -p "$HOME/.steam/debian-installation/steamapps/workshop/downloads"
		update_mods "$server"
	done
}

main "$@"