#! /bin/bash
# TILDERADIO MASTER EXECUTABLE - master executable for tilderadio
# Top level runtime of tilderadio program


# Get Source Dir, and then source Core Declarations file
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
source "${DIR}/scripts/system/system-declarations"


# Includes and Declarations (global variables, formatting and functions)
source "${APPLICATION_ROOT}/scripts/system/system-declarations"
source "${APPLICATION_ROOT}/scripts/system/system-functions"
source "${APPLICATION_ROOT}/var/version"


# Render Main Menu
function render_main_menu {

	# Check to make sure active config file idenifier is valid. If not, then empty identifier.
	CURRENT_CONFIG_NAME=$(<$CONFIG_FILE_IDENTIFIER_PATH)
	CURRENT_CONFIG_FILE_CLAIMED_PATH="$CONFIG_DIRECTORY/config-${CURRENT_CONFIG_NAME}.json"
	if ! [[ -f "$CURRENT_CONFIG_FILE_CLAIMED_PATH" ]]; then
       	
       	truncate -s 0 "$CONFIG_FILE_IDENTIFIER_PATH"
		CURRENT_CONFIG_NAME=$(<$CONFIG_FILE_IDENTIFIER_PATH)

	fi

	# Prepare Pretty Header
	APP_AND_VERSION_PREFIX="soapdish - v${VERSION}"
	APP_AND_VERSION_CHARCOUNT=${#APP_AND_VERSION_PREFIX}

	# Render Main Menu - Appropriate pretty menuheading (check if a config is specified)
	if [[ -n "$CURRENT_CONFIG_NAME" ]]; then

		# If config file is set, prep variables
		CURRENT_CONFIG_NAME_AND_PREFIX="[Using profile: \"${CURRENT_CONFIG_NAME}\"]"
		CURRENT_CONFIG_NAME_CHARCOUNT=${#CURRENT_CONFIG_NAME_AND_PREFIX}
		MENU_HEADER_SPACING_COUNT=$(( "80" - "$CURRENT_CONFIG_NAME_CHARCOUNT" - "$APP_AND_VERSION_CHARCOUNT" ))
		MENU_HEADER_SPACING=""
		for (( i = 0; i < MENU_HEADER_SPACING_COUNT; i++ )); do
			MENU_HEADER_SPACING="${MENU_HEADER_SPACING} "
		done

		# Render
		echo -e "";
		echo -e "";
		echo -e "${FONT_BOLD}${APP_AND_VERSION_PREFIX}${MENU_HEADER_SPACING}${CURRENT_CONFIG_NAME_AND_PREFIX}${FONT_DEFAULT}"
		render_horizontal_rule
		echo "";

	else

		# If config file is NOT set, prep variables
		CURRENT_CONFIG_NAME_AND_PREFIX="[No config specified!]"
		CURRENT_CONFIG_NAME_CHARCOUNT=${#CURRENT_CONFIG_NAME_AND_PREFIX}
		MENU_HEADER_SPACING_COUNT=$(( "80" - "$CURRENT_CONFIG_NAME_CHARCOUNT" - "$APP_AND_VERSION_CHARCOUNT" ))
		MENU_HEADER_SPACING=""
		for (( i = 0; i < MENU_HEADER_SPACING_COUNT; i++ )); do
			MENU_HEADER_SPACING="${MENU_HEADER_SPACING} "
		done

		# Render
		echo -e "";
		echo -e "";
		echo -e "${FONT_BOLD}${APP_AND_VERSION_PREFIX}${MENU_HEADER_SPACING}${COLOR_RED}${CURRENT_CONFIG_NAME_AND_PREFIX}${FONT_DEFAULT}"
		render_horizontal_rule
		echo "";

	fi

	# Render Main Menu - Streaming Commands
	echo -e "   ${FONT_BOLD}${COLOR_DARK_GRAY}STREAM ALSA:${COLOR_DEFAULT}${FONT_DEFAULT}                           ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}L${FONT_DEFAULT}${COLOR_DEFAULT} - stream ALSA/live (to Main)     ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}l${FONT_DEFAULT}${COLOR_DEFAULT} - stream ALSA/live (to Testing)  ";
	echo -e "";

	
	# Render Main Menu - Broadcast Commands
	echo -e "   ${FONT_BOLD}${COLOR_DARK_GRAY}STREAM FILES:${COLOR_DEFAULT}${FONT_DEFAULT}                          ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}F${FONT_DEFAULT}${COLOR_DEFAULT} - stream files (to Main)         ";	
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}f${FONT_DEFAULT}${COLOR_DEFAULT} - stream files (to Testing)      ";	
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}V${FONT_DEFAULT}${COLOR_DEFAULT} - playlist view                  ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}C${FONT_DEFAULT}${COLOR_DEFAULT} - playlist create                ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}E${FONT_DEFAULT}${COLOR_DEFAULT} - playlist edit                  ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}Q${FONT_DEFAULT}${COLOR_DEFAULT} - queued folder contents         ";
	echo -e "";

	# Render Main Menu - Cron
	echo -e "   ${FONT_BOLD}${COLOR_DARK_GRAY}CRON${COLOR_DEFAULT}${FONT_DEFAULT}                                   ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}S${FONT_DEFAULT}${COLOR_DEFAULT} - cron status                    ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}A${FONT_DEFAULT}${COLOR_DEFAULT} - cron activate                  ";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}D${FONT_DEFAULT}${COLOR_DEFAULT} - cron deactivate                ";
	echo -e "";

	# Render Main Menu - System
	echo -e "   ${COLOR_DARK_GRAY}${FONT_BOLD}SYSTEM${FONT_DEFAULT}${COLOR_DEFAULT}";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}K${FONT_DEFAULT}${COLOR_DEFAULT} - killall and restart liquidsoap";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}J${FONT_DEFAULT}${COLOR_DEFAULT} - config profile options";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}H${FONT_DEFAULT}${COLOR_DEFAULT} - review hardware audio frame size";
	echo -e "   ${COLOR_LIGHT_MAGENTA}${FONT_BOLD}M${FONT_DEFAULT}${COLOR_DEFAULT} - alsa mixer";
	echo -e "";
	echo -e "";
	echo -e "";

}


# Process input variable
function process_input_variable() {

	# Case Switch
	case $INPUTCOMMAND in

	# SHOW COMMANDS:

		# LIVE-STREAMING	
	
			# (L) ---- main, stream live/alsa
				L) source "${APPLICATION_ROOT}/scripts/streaming/main/main-stream_live_alsa" ;;
			# (l) ---- testing, stream live/alsa
				l) source "${APPLICATION_ROOT}/scripts/streaming/testing/testing-stream_live_alsa" ;;


		# FILE-STREAMING

			# (F) ---- main, stream files
				F) source "${APPLICATION_ROOT}/scripts/streaming/main/main-stream_files" ;;
			# (f) ---- testing, stream files
				f) source "${APPLICATION_ROOT}/scripts/streaming/testing/testing-stream_files" ;;
			# (V) ---- main, playlist view
				V) source "${APPLICATION_ROOT}/scripts/playlist/playlist_view" ;;
			# (C) ---- main, playlist create
				C) source "${APPLICATION_ROOT}/scripts/playlist/playlist_create" ;;
			# (E) ---- main, playlist edit
				E) source "${APPLICATION_ROOT}/scripts/playlist/playlist_edit" ;;
			# (Q) ---- main, queued folder contents
				Q) source "${APPLICATION_ROOT}/scripts/queued/queued_folder_contents" ;;
	
		# CRON

			# (S) ---- cron status
				S) source "${APPLICATION_ROOT}/scripts/cron/main-cron_status" ;;
			# (A) ---- cron activate
				A) source "${APPLICATION_ROOT}/scripts/cron/main-cron_activate" ;;
			# (D) ---- cron deactivate
				D) source "${APPLICATION_ROOT}/scripts/cron/main-cron_deactivate" ;;


	# SYSTEM COMMANDS

			# (K) ---- killall and restart
				K) source "${APPLICATION_ROOT}/scripts/system/system-killall_and_restart" ;;
			# (J) ---- edit config
				J) source "${APPLICATION_ROOT}/scripts/system/system-config" ;;
			# (H) ---- review hardware audio frame size
				H) source "${APPLICATION_ROOT}/scripts/system/system-update_hardware_audio_frame_size" ;;
			# (M) ---- alsa mixer
				M) source "${APPLICATION_ROOT}/scripts/system/system-alsa_mixer" ;;


		# Fallback if command not recognized
		*)
		printf "${COLOR_RED}[-] Command not recognized.${COLOR_DEFAULT}\n"
		echo ""
		;;

	esac

}


# Main Program Function
function execute_program {


	# Check for missing dependencies (if missing, exits)
	check_for_missing_dependencies

	# Git touch routine to add .gitkeep and create any missing folders
	git_keep_touch_routine

	# Read Command Input
	while :
	do

		# Render Main Menu
		echo ""
		render_main_menu


		# Read main application input command
		MENU_NAME=$(echo -e "${COLOR_LIGHT_MAGENTA}[Main Menu]${COLOR_DEFAULT}")
		read -p "$MENU_NAME Choice? (\"quit\" to exit, RETURN for menu): " INPUTCOMMAND;

		# If "quit" entered
		if [[ $INPUTCOMMAND == "quit" ]]; then


			# Kill, just in case
			sudo pkill "liquidsoap";

			# Wait and restart liquidsoap, just in case
			sleep 2
			sudo systemctl restart liquidsoap

			# Notify of exit
			printf "${COLOR_GREEN}[quit] Exiting...${COLOR_DEFAULT}\n"
			echo ""
			echo ""
			break

		# If no key entered
		elif [[ -z $INPUTCOMMAND ]]; then
			printf "${COLOR_GREEN}[RETURN] Main menu.${COLOR_DEFAULT}\n"
			echo ""
			render_main_menu

		# Evaluate Character entered
		else
			process_input_variable

		fi

	done

}


# Master execution of program
execute_program


# Closing change of permissions on execution of script
reset_permissions