#!/bin/bash
MINED_BLOCKS_DIR="/home/$USER/.arching-kaos/mined_blocks"
cd $MINED_BLOCKS_DIR
PROGRAM="$(basename $0)"
declare -A counters
logitnowint(){
	logthis "<$PROGRAM>" "$1" "$2"
}
further(){
	# logitnowint "[INFO]" "Diving into $1"
	lookfor $1
}

lookfor(){
	echo -n $1 | grep -e '[0-9a-f]\{128\}' > /dev/null 
	if [ ! $? = 0 ]
	then
		logitnowint "[ERROR]" "Oops!!! The argument passed, does not match the regular expression!"
	else
		counters[$CHAIN_PARENT]="$(expr ${counters[$CHAIN_PARENT]} + 1)"
		if [ ! $? = 0 ]
		then
			echo "$1, $counters[$1]"
			exit 1
		fi
		logitnowint "[INFO]" "Accessing file: $1"
	#	echo "$1 file:"
	#	cat "$1" | jq
		NEXT_TARGET="$(cat "$1" | jq | grep previous | tr -d ' ' | sed -e 's/previous//g; s/[",:]//g;')"
		if [ ! "$NEXT_TARGET" = "" ]
		then
			logitnowint "[INFO]" "Found previous: $NEXT_TARGET"
			if [ ! -f "$NEXT_TARGET" ]
			then
				logitnowint "[WARNING]" "Could not find $NEXT_TARGET"
			else
				further "$NEXT_TARGET"
			fi
		else

			logitnowint "[WARNING]" "No next target found. So long for $1"
		fi
	fi
}


ls -1 > tmplistblock
while IFS="" read -r p || [ -n "$p" ]
do
#	if [ ! "$p" = "" ] && [ ! "$p" = "tmplistblock" ]
	if [ "$(echo $p | tr -d '\n' | wc -c)" = 128 ]
	then
		logitnowint "[INFO]" "Investigating $p..."
		export CHAIN_PARENT="$p"
		counters[$CHAIN_PARENT]=1
		lookfor "$p"
	else
		logitnowint "[WARNING]" "Nothing to do with $p"
	fi
done < tmplistblock
rm tmplistblock
max=0
max_holder=0
for value in "${!counters[@]}"
do
#	echo "${value} : ${counters[${value}]}"
	if [ ${counters[${value}]} -gt $max  ]
	then
		max="${counters[${value}]}"
		max_holder="${value}"
		logitnowint "[INFO]" "New MAX $max on $max_holder"


	fi	
done
echo '{"latest_block":"'$max_holder'"}'