msm/bash_completion/msm

### Utility Functions

CONFIG="/etc/msm.conf"

# Loads variables
__init() {
	source "$CONFIG"
}

# Loads server variables
# $1: The name of a server
__init_server() {
	SERVER_PATH="$SERVER_STORAGE_PATH/$1"
	SERVER_CONF="$SERVER_STORAGE_PATH/$1/$DEFAULT_SERVER_CONF"

	SERVER_USER="$DEFAULT_SERVER_USER"
	SCREEN_NAME="${DEFAULT_SCREEN_NAME//\{SERVER_NAME\}/${1}}"
	WORLD_STORAGE_PATH="$SERVER_PATH/$DEFAULT_WORLD_STORAGE_PATH"
	WORLD_STORAGE_INACTIVE_PATH="$SERVER_PATH/$DEFAULT_WORLD_STORAGE_INACTIVE_PATH"

	WHITELIST="$SERVER_PATH/$DEFAULT_WHITELIST"
	BANNED_PLAYERS="$SERVER_PATH/$DEFAULT_BANNED_PLAYERS"
	BANNED_IPS="$SERVER_PATH/$DEFAULT_BANNED_IPS"
	OPS="$SERVER_PATH/$DEFAULT_OPS"

	JAR="$DEFAULT_JAR"
	RAM="$DEFAULT_RAM"
	INVOCATION="$DEFAULT_INVOCATION"

	if [[ -f "$SERVER_CONF" ]]; then
		local name value
	
		while read line; do 
		 	# ignore comment lines
			echo "$line" | grep "^#" >/dev/null 2>&1 && continue
	
		   	# if not empty, get the name and value of the setting
		   	if [ ! -z "$line" ]; then
			 	name="$(echo $line | awk -F '=' '{print $1}')"
				value="$(echo $line | awk -F '\"' '{print $2}')"
			fi
		
			case "$name" in
				SERVER_USER) SERVER_USER="$value";;
				SCREEN_NAME) SCREEN_NAME="$value";;
				WORLD_STORAGE_PATH) WORLD_STORAGE_PATH="$SERVER_PATH/$value";;
				WORLD_STORAGE_INACTIVE_PATH) WORLD_STORAGE_INACTIVE_PATH="$SERVER_PATH/$value";;
			
				WHITELIST) WHITELIST="$SERVER_PATH/$value";;
				BANNED_PLAYERS) BANNED_PLAYERS="$SERVER_PATH/$value";;
				BANNED_IPS) BANNED_IPS="$SERVER_PATH/$value";;
				OPS) OPS="$SERVER_PATH/$value";;
			
				JAR) JAR="$SERVER_PATH/$value";;
				RAM) RAM="$value";;
				INVOCATION) INVOCATION="$value";;
			esac
		done < "$SERVER_CONF"
	fi
}


### Auto Completion Function

_msm() {
	__init
	
	local base current options
	COMPREPLY=()
	
	current="${COMP_WORDS[$COMP_CWORD]}"
	
	if [[ $COMP_CWORD == 1 ]]; then
		if [ -d "$SERVER_STORAGE_PATH" ]; then
			local servers="$(ls -1 "$SERVER_STORAGE_PATH")"
		fi
		options="help start stop restart version server jargroup all $servers"
	else
		case "${COMP_WORDS[1]}" in
			stop|restart)
				if [[ $COMP_CWORD == 2 ]]; then
					options="now"
				fi
				;;
			server)
				if [[ $COMP_CWORD == 2 ]]; then
					options="list create delete rename"
				else
					case "${COMP_WORDS[2]}" in
						delete|rename)
							if [[ $COMP_CWORD == 3 && -d "$SERVER_STORAGE_PATH" ]]; then
								options="$(ls -1 "$SERVER_STORAGE_PATH")"
							fi
							;;
					esac
				fi
				;;
			jargroup)
				if [[ $COMP_CWORD == 2 ]]; then
					options="list create delete rename changeurl getlatest"
				else
					case "${COMP_WORDS[2]}" in
						delete|rename|changeurl|getlatest)
							if [[ $COMP_CWORD == 3 && -d "$JAR_STORAGE_PATH" ]]; then
								options="$(ls -1 "$JAR_STORAGE_PATH")"
							fi
							;;
					esac
				fi
				;;
			*)
				# Server options
				
				local server_path="$SERVER_STORAGE_PATH/${COMP_WORDS[1]}"
				if [[ "${COMP_WORDS[1]}" == "all" ]] || [ -e "$server_path" ]; then
					# If the server exists
					
					__init_server "${COMP_WORDS[1]}"
					
					if [[ $COMP_CWORD == 2 ]]; then
						options="start stop restart status connected worlds logroll backup jar whitelist blacklist operator gamemode kick say time toggledownfall save cmd cmdlog"
					else
						case "${COMP_WORDS[2]}" in
							stop|restart)
								if [[ $COMP_CWORD == 3 ]]; then
									options="now"
								fi
								;;
							worlds)
								if [[ $COMP_CWORD == 3 ]]; then
									options="list load ram todisk backup on off"
								else
									case "${COMP_WORDS[3]}" in
										ram)
											if [[ $COMP_CWORD == 4 ]]; then
												if [ -d "$WORLD_STORAGE_PATH" ]; then
													options="$(ls -1 "$WORLD_STORAGE_PATH")"
												fi
											fi
											;;
										on)
											if [[ $COMP_CWORD == 4 ]]; then
												if [ -d "$WORLD_STORAGE_INACTIVE_PATH" ]; then
													options="$(ls -1 "$WORLD_STORAGE_INACTIVE_PATH")"
												fi
											fi
											;;
										off)
											if [[ $COMP_CWORD == 4 ]]; then
												if [ -d "$WORLD_STORAGE_PATH" ]; then
													options="$(ls -1 "$WORLD_STORAGE_PATH")"
												fi
											fi
											;;
									esac
								fi
								;;
							jar)
								if [[ $COMP_CWORD == 3 && -d "$JAR_STORAGE_PATH" ]]; then
									options="$(ls -1 "$JAR_STORAGE_PATH")"
								fi
								
								if [[ $COMP_CWORD == 4 && -d "$JAR_STORAGE_PATH/${COMP_WORDS[3]}" ]]; then
									options="$(find "$JAR_STORAGE_PATH/${COMP_WORDS[3]}" -type f -name "*.jar" -exec basename {} \;)"
								fi
								;;
							whitelist|wl)
								if [[ $COMP_CWORD == 3 ]]; then
									options="on off add remove list"
								else
									case "${COMP_WORDS[3]}" in
										remove)
											if [[ $COMP_CWORD == 4 ]]; then
												if [ -f "$WHITELIST" ]; then
													options="$(cat "$WHITELIST")"
												fi
											fi
											;;
									esac
								fi
								;;
							blacklist|bl)
								if [[ $COMP_CWORD == 3 ]]; then
									options="player ip list"
								else
									case "${COMP_WORDS[3]}" in
										player)
											if [[ $COMP_CWORD == 4 ]]; then
												options="add remove"
											else
												case "${COMP_WORDS[4]}" in
													remove)
														if [[ $COMP_CWORD == 5 ]]; then
															if [ -f "$BANNED_PLAYERS" ]; then
																options="$(cat "$BANNED_PLAYERS")"
															fi
														fi
														;;
												esac
											fi
											;;
										ip)
											if [[ $COMP_CWORD == 4 ]]; then
												options="add remove"
											else
												case "${COMP_WORDS[4]}" in
													remove)
														if [[ $COMP_CWORD == 5 ]]; then
															if [ -f "$BANNED_IPS" ]; then
																options="$(cat "$BANNED_IPS")"
															fi
														fi
														;;
												esac
											fi
											;;
									esac
								fi
								;;
							operator|op)
								if [[ $COMP_CWORD == 3 ]]; then
									options="add remove list"
								else
									case "${COMP_WORDS[3]}" in
										remove)
											if [[ $COMP_CWORD == 4 ]]; then
												if [ -f "$OPS" ]; then
													options="$(cat "$OPS")"
												fi
											fi
											;;
									esac
								fi
								;;
							gamemode|gm)
								if [[ $COMP_CWORD == 3 ]]; then
									options="survival creative"
								fi
								;;
							time)
								if [[ $COMP_CWORD == 3 ]]; then
									options="set add"
								fi
								;;
							save)
								if [[ $COMP_CWORD == 3 ]]; then
									options="on off all"
								fi
								;;
						esac
								
					fi
				fi
				;;
		esac
	fi
	
	COMPREPLY=( $(compgen -W "${options}" -- ${current}) )
	return 0
}

complete -F _msm msm