#!/usr/bin/env bash
#Forked from https://gitlab.com/uoou/dotfiles/-/tree/master/stow/bin/home/drew/.local/bin/lace 
# Modified to show date rather than how many days ago by frrobert2
# https://github.com/frrobert2/lace/blob/main/lacewithdate
if [ -z "$XDG_CONFIG_HOME" ];then
	config_place="$HOME/.config/lace"
else
	config_place="$XDG_CONFIG_HOME/lace"
fi
[[ ! -d "$config_place" ]] && mkdir -p $config_place
subsfile="$config_place/subs"

red="[31m"
blue="[34m"
nc="[m"
esc=$(echo -e "\033")
tmpfile=$(mktemp /tmp/lace.XXXXXX)

function dohelp() {
	echo -e "\nUsage:\n"
	echo -e "\t$(basename "$0") - read subscriptions\n"
	echo -e "\t$(basename "$0") nope - read subscriptions without pager\n"
	echo -e "\t$(basename "$0") subs - list subscriptions\n"
	echo -e "\t$(basename "$0") sub nickname url - add subscription, e.g.:"
	echo -e "\t$(basename "$0") sub Drew gemini://friendo.monster/tiny.gmi\n"
	echo -e "\t$(basename "$0") unsub nickname - remove subscription, e.g.:"
	echo -e "\t$(basename "$0") unsub Drew\n"
	echo -e "\t$(basename "$0") update - redownload script to location of current script (might need sudo, depending on location)\n"
	exit
}

function timeline() {
	while read f;do
		local user=$(awk '{print $2}' <<< "$f")
		local url=$(awk '{print $1}' <<< "$f")
		if [[ "$url" != *://* ]];then
			domain="$url"
			url="gemini://$url"
		else
			domain=$(sed 's/gemini:\/\///' <<< "$url")
		fi
		if [[ "$url" != *.*/*.* ]] && [[ $url != */ ]];then
			url="$url/"
		fi
		domain=$(sed 's/\/.*$//' <<< "$domain")
		fav=$(openssl s_client -crlf -quiet -connect "$domain:1965" <<<"gemini://$domain/favicon.txt" 2>/dev/null | sed -e '1d')
		if [ ! -z "$fav" ];then
			user="$fav $user"
		fi
		openssl s_client -crlf -quiet -connect "$domain:1965" <<<"$url" 2>/dev/null | sed -e '1d' | sed -n '/##/,$p' | sed -e "s/^\(## .*\)$/\1\n${esc}$red$user${esc}$nc ($domain)/g" >> $tmpfile
		[[ ! -z $(sed -n '$p' $tmpfile) ]] && echo "" >> $tmpfile
	done <"$subsfile"
	cat $tmpfile | sed -r ':r;/(^|\n)$/!{$!{N;br}};s/\n/\v/g' | sed -rn '/^## .*/p' | sed -e 's/\v/\n/g' | sed -e "s/^## \(.*\)/date -d '\1' +%s/e" | sed -r ':r;/(^|\n)$/!{$!{N;br}};s/\n/\v/g' | sort -r | sed -e 's/\v/\n/g'  > $tmpfile

	sed -i "s/\(^[0-9]\{8,\}$\)/date -d @\1/e" $tmpfile
	if [[ "$1" == "nope" ]];then
		cat $tmpfile && rm -f $tmpfile
	else
		less -RisW $tmpfile && rm -f $tmpfile
	fi
}

if [[ "$1" == "help" ]] || [[ "$1" == "--help" ]] || [[ "$1" == "-help" ]] || [[ "$1" == "-h" ]];then
	dohelp
elif [[ "$1" == "sub" ]];then
	[[ "$#" -ne 3 ]] && dohelp
	echo "$3 $2" >> $subsfile && echo "added $2 to subscriptions"
elif [[ "$1" == "unsub" ]];then
	[[ "$#" -ne 2 ]] && dohelp
	if grep " $2$" $subsfile 1>/dev/null;then
		sed -i "/ $2$/d" $subsfile &&
		echo "removed subscription to $2"
	else
		echo "subscription \"$2\" does not exist"
	fi
elif [[ "$1" == "subs" ]];then
	awk '{print $2" ("$1")"}' $subsfile 
elif [[ "$1" == "update" ]];then
	curl https://raw.githubusercontent.com/frrobert2/lace/main/lacewithdate > "${BASH_SOURCE[0]}"
else
	now_unix="$(date +'%s')"
	if [[ "$1" == "nope" ]];then
		timeline nope
	else
		timeline
	fi
fi