#!/bin/bash
if [ "$1" == "--help" ]; then
	echo "Environment variables: VERBOSE (false)"
	echo "                       FILEEXTENSION (*)"
	echo "                       IGNORE_SCRIPT (false)"
	echo "                       IGNORE_DOCUMENTATION (false)"
	echo "                       NUMBER_ONLY (false)"
	exit 0
fi
function dircount() {
	if [ "$VERBOSE" == "true" ]; then echo ":: Checking directory \"$*\"..."; fi
	cd "$*" || exit 54
	for file in $FILEEXTENSION; do
		export "file_full=$*/$file"
		if [ -d "$file" ]; then
			if [ "$file" == "devprj" ]; then
				if [ "$VERBOSE" == "true" ]; then echo ":: Skipping directory \"devprj\"";fi
			else
				if [ "$IGNORE_DOCUMENTATION" == "true" ] && [ "$file" == "docs" ]; then
					if [ "$VERBOSE" == "true" ]; then echo ":: Skipping directory \"docs\"";fi
				else
					dircount "$file_full"
				fi
			fi
		elif [ -f "$file" ]; then
			if [ "$IGNORE_SCRIPT" == "true" ] && [ "$file" == "count_characters.sh" ]; then
				if [ "$VERBOSE" == "true" ]; then echo ":: Skipping this script"; fi
			else
				if [ "$VERBOSE" == "true" ]; then echo ":: Counting characters in file \"$file_full\"..."; fi
				export "COUNT_FILE=$(wc -m < "$file_full")"
				export "COUNT=$((COUNT + COUNT_FILE))"
			fi
		else
			if [ "$VERBOSE" == "true" ]; then echo ":: Skipping \"$file_full\" (no file or directory)"; fi
		fi
	done
	cd ..
}
if [ "$FILEEXTENSION" == "" ]; then
	export "FILEEXTENSION=*"
fi
if [ "$*" == "" ]; then
	dircount "$(pwd)"
else
	dircount "$(pwd)/$*"
fi
if [ "$VERBOSE" == "true" ]; then echo ""; fi
if [ "$NUMBER_ONLY" == "true" ]; then
	echo "$COUNT"
else
	echo "Characters counted: $COUNT"
fi