#!/bin/bash
#Check for mariadb vs. mysql
dbengine=""
if [[ -n $(type mariadb) ]]; then
	dbengine="mariadb"
elif [[ -n $(type mysql) ]]; then
	dbengine="mysql"
else
	exit
fi
db="friendica"
url=friendica.example.net
avatarfolder=/var/www/friendica/avatar
avatarfolderescaped=${avatarfolder////\\/}
input_id=${1:-""}

#Check if our dependencies are installed
if [[ -n $(type curl) && -n "${dbengine}" && -n $(type "${dbengine}") && -n $(type date) ]]; then
	#Check if there was an input id; if not, skip
	if [[ "${input_id}" != "" ]]; then
		date
		while read -r id nick baseurl lastitem; do
			baseurltrimmed=$(echo "${baseurl}" | sed -e "s/http[s]*:\/\///g")
			#Find the pictures in the avatar folders and delete them
			picturecount=0
			while read -r photo thumb micro; do
				#If stored in avatar folder
				if grep -v -q "${url}/avatar" <(echo "${photo}"); then
					#if [[ -z "${isavatar}" ]]
					phototrimmed=$(echo "${photo}" | sed -e "s/https:\/\/${url}\/avatar/${avatarfolderescaped}/g" -e "s/\?ts.*//g")
					rm -rfv "${phototrimmed}"
					thumbtrimmed=$(echo "${thumb}" | sed -e "s/https:\/\/${url}\/avatar/${avatarfolderescaped}/g" -e "s/\?ts.*//g")
					rm -rfv "${thumbtrimmed}"
					microtrimmed=$(echo "${micro}" | sed -e "s/https:\/\/${url}\/avatar/${avatarfolderescaped}/g" -e "s/\?ts.*//g")
					rm -rfv "${microtrimmed}"
					picturecount=1
				fi
			done < <("${dbengine}" "${db}" -N -B -q -e "select \`photo\`, \`thumb\`, \`micro\` from \`contact\` where \`id\` = ${id}")
			postthreadcount=$("${dbengine}" "${db}" -N -B -q -e "create temporary table tmp_post_thread (select \`uri-id\` from \`post-thread\` where \`owner-id\` = ${id} or \`author-id\` = ${id} or \`causer-id\` = ${id}); delete h.* from \`post-thread\` h inner join \`tmp_post_thread\` t where h.\`uri-id\` = t.\`uri-id\`; select row_count();" || echo 0)
			postthreadusercount=$("${dbengine}" "${db}" -N -B -q -e "create temporary table tmp_post_thread_user (select \`uri-id\` from \`post-thread-user\` where \`owner-id\` = ${id} or \`author-id\` = ${id} or \`causer-id\` = ${id}); delete r.* from \`post-thread-user\` r inner join \`tmp_post_thread_user\` t where r.\`uri-id\` = t.\`uri-id\`; select row_count();" || echo 0)
			postusercount=$("${dbengine}" "${db}" -N -B -q -e "create temporary table tmp_post_user (select \`id\` from \`post-user\` where \`owner-id\` = ${id} or \`author-id\` = ${id} or \`causer-id\` = ${id}); delete u.* from \`post-user\` u inner join \`tmp_post_user\` t where u.\`id\` = t.\`id\`; select row_count();" || echo 0)
			posttagcount=$("${dbengine}" "${db}" -N -B -q -e "delete from \`post-tag\` where cid = ${id}; select row_count();" || echo 0)
			postcontentcount=$("${dbengine}" "${db}" -N -B -q -e "create temporary table tmp_post (select \`uri-id\` from \`post\` where \`owner-id\` = ${id} or \`author-id\` = ${id} or \`causer-id\` = ${id}); delete p.* from \`post-content\` p inner join \`tmp_post\` t where p.\`uri-id\` = t.\`uri-id\`; select row_count();" || echo 0)
			postcount=$("${dbengine}" "${db}" -N -B -q -e "create temporary table tmp_post (select \`uri-id\` from \`post\` where \`owner-id\` = ${id} or \`author-id\` = ${id} or \`causer-id\` = ${id}); delete p.* from \`post\` p inner join \`tmp_post\` t where p.\`uri-id\` = t.\`uri-id\`; select row_count();" || echo 0)
			photocount=$("${dbengine}" "${db}" -N -B -q -e "delete from \`photo\` where \`contact-id\` = ${id}; select row_count();" || echo 0)
			contactcount=$("${dbengine}" "${db}" -N -B -q -e "delete from \`contact\` where \`id\` = ${id}; select row_count();" || echo 0)
			apcontactcount=$("${dbengine}" "${db}" -N -B -q -e "delete from \`apcontact\` where \`uri-id\` = ${id}; select row_count();" || echo 0)
			diasporacontactcount=$("${dbengine}" "${db}" -N -B -q -e "delete from \`diaspora-contact\` where \`uri-id\` = ${id}; select row_count();" || echo 0)
			response_left=$(printf "%s %s %s@%s " "${id}" "${lastitem::-9}" "${nick}" "${baseurltrimmed}")
			response=$(printf "%spicture:%s " "${response}" "${picturecount}")
			response=$(printf "%spost-thread:%s " "${response}" "${postthreadcount}")
			response=$(printf "%spost-thread-user:%s " "${response}" "${postthreadusercount}")
			response=$(printf "%spost-user:%s " "${response}" "${postusercount}")
			response=$(printf "%spost-tag:%s " "${response}" "${posttagcount}")
			response=$(printf "%spost-content:%s " "${response}" "${postcontentcount}")
			response=$(printf "%spost:%s " "${response}" "${postcount}")
			response=$(printf "%sphoto:%s " "${response}" "${photocount}")
			response=$(printf "%scontact:%s " "${response}" "${contactcount}")
			response=$(printf "%sapcontact:%s " "${response}" "${apcontactcount}")
			response=$(printf "%sdiaspora-contact:%s " "${response}" "${diasporacontactcount}")
			#Previous line clearance
			#Measure length of string, blank only the excess
			#Since this string is panned to both sides, we will need to account for two lengths
			final_string_length_left="${#response_left}"
			final_string_length_right="${#response}"
			final_string_length=$((final_string_length_left + final_string_length_right))
			#The string that will be used to insert the blanks
			blank_string=""
			columns_length="${COLUMNS}"
			#Account for the case where the string is more than a terminal line long
			while [[ "${final_string_length}" -gt "${columns_length}" ]]; do
				columns_length=$((columns_length + COLUMNS))
			done
			blank_string_length=$((columns_length - final_string_length))
			#Add enough blank spaces to fill the rest of the line
			for ((count = 0; count < "${blank_string_length}"; count++)); do
				blank_string=$(printf "%s " "${blank_string}")
			done
			#Add backspaces to align the next output
			for ((count = 0; count < $((final_string_length + blank_string_length)); count++)); do
				response_left=$(printf "\b%s" "${response_left}")
			done
			response=$(printf "%s%s%s" "${response_left}" "${blank_string}" "${response}")
			printf "%s\r" "${response}"
		done < <("${dbengine}" "${db}" -N -B -q -e "select \`id\`, \`nick\`, \`baseurl\`, \`last-item\` from contact where \`id\` = ${input_id}")
		printf "\n\r"
		date
	else
		echo "${input_id}"
	fi
fi