#!/bin/bash

#############
# Constants #
#############

RETRIES_MAIN=3
WIKI_ADDRESS='http://wiki.zenwalk.org/index.php?title=Compiz_Fusion'
COMPIZ_START_CMD="fusion-icon"
COMPIZ_CHECK="compiz-check"
DIALOG_TEXT="You are about to start Compiz maybe even for the first time.\n\
Please ensure that you have X set up properly. If you are unsure visit \
the Zenwalk Wiki."
DIALOG_CMD='eval eval Xdialog --no-tags --default-item abort --wrap \
--left --icon compiz --title "\"Compiz Launcher\"" --menubox "\"$DIALOG_TEXT\"" 17 70 0 $choices 2>&1'

# Dialog Choices
CHOICE_COUNT=4

CHOICE_TAG[0]="start"
CHOICE_TEXT[0]="Start Compiz"
CHOICE_ACTION[0]="$COMPIZ_START_CMD 2>/dev/null 1>/dev/null &"

CHOICE_TAG[1]="abort"
CHOICE_TEXT[1]="Do not start Compiz"
CHOICE_ACTION[1]="echo -n"

CHOICE_TAG[2]="wiki"
CHOICE_TEXT[2]="Help me! Display the Zenwalk Wiki entry."
CHOICE_ACTION[2]="exo-open $WIKI_ADDRESS & displayMainDialog"

CHOICE_TAG[3]="compiz-check"
CHOICE_TEXT[3]="Check if Compiz will probably work."
CHOICE_ACTION[3]="xterm -e \"$COMPIZ_CHECK ; read -n 1 -sp 'Press any key to exit…'\" & displayMainDialog"


###########################
# Variable Initialisation #
###########################

for ((i = 0; i < CHOICE_COUNT; i++)); do
	choices+='"${CHOICE_TAG[${i}]}" "${CHOICE_TEXT[$((i++))]}" '
done

#############
# Functions #
#############

# handler if Xdialog exits abnormally
errorHandler() {
	echo $1;
	
	if [[ $retriesMain > 0 ]]; then
			echo "Retrying! Retries left: $((retriesMain--))"
			display${2}Dialog
	fi
	return
}


# function to display the chooser dialog
displayMainDialog() {
	i=0
	choice=$($DIALOG_CMD)
		
	case $? in
	0)
		evaluateChoice
		;;
	1)
		return
		;;
	255)
		errorHandler "ERROR: Xdialog exited with an error or was closed abnormally" "Main"
		;;
	esac	
	return
}

# Check which action should be performed after Xdialog exits with 0
evaluateChoice() {
	echo "Your choice: $choice"
	#case $choice in
		#"start")
			
			#;;
		#"abort")
			#;;
		#"wiki")
			
			
			#;;
		#"compiz-check")
			
			#;;
		#*)
			#errorHandler "ERROR: Unexpected choice: '$choice' This might be due to a bug in the script." "Main"
	#esac
	#return
for ((i = 0; i < CHOICE_COUNT; i++)); do
	if [ "$choice" == "${CHOICE_TAG[${i}]}" ]; then
		eval ${CHOICE_ACTION[${i}]}
		break
	fi
done
}



########
# Main #
########

displayMainDialog
exit