#!/usr/bin/env ash

chan="$1";
serv="${serv:-irc.freenode.net}";
cd "/home/zgrep/offtopiabday" || exit 1;

var() { printf '%s\n' "$1"; }
say() { cat - > "$serv/$chan/in"; }
alias safe="sed 's%^/%//%'"
log="$serv/$chan/out";

irc() {
	tail -n 0 -f "$serv/$chan/out" | while read -r l; do
		var "$l" | sed 's/^[^<]*<//' | sed 's/>//';
	done;
}

reg() {
	r=$(var "$1" | sed 's%/%\\\/%g');
	r=$(var "$2" | perl -ne '@m=m/'"$r"'/ or exit 1;printf join "\n", @m');
}
hreg() {
	reg "$(var "$1" | sed 's/happybot/(?:[hH][aA][pP][pP][yY]|[hH][aA][tT][eE])[bB][oO][tT]/g')" "$2"
}
m() { var "$r" | sed -n "$1p"; }

zwsp=$(python3 -c 'print("\u200b",end="")');
zwsp() { cat - | sed 's%^\(/m \)\?%\1'"$zwsp"'%'; }
x01=$(python3 -c 'print("\x01",end="")');

zirc() {
	irc | while read -r n l; do 
		l="$(var "$l" | grep -vE "^${zwsp}|^${x01}ACTION ${zwsp}")"
		if [ -z "$l" ]; then
			continue
		else
			var "$n $l"
		fi
	done
}

nth() {
	case "$1" in
		"11" | "12" | "13")
			var "${1}th";
			;;
		*"1")
			var "${1}st";
			;;
		*"2")
			var "${1}nd";
			;;
		*"3")
			var "${1}rd";
			;;
		*)
			var "${1}th";
			;;
	esac;
}

s() {
	if [ "$1" == "1" ]; then
		var "";
	else
		var "s";
	fi;
}

ns() { var "$1$(s "$1")"; }

rand() {
	if [ -z "$1" ]; then f="-"; else f="$1"; fi
	perl -e 'srand; rand($.) < 1 && ($line = $_) while <>; print $line;' "$f"
}

person() {
	shuf -n100 "$serv/$chan/out" | grep -v -- '-!-' | rand | awk '{print$3}' | sed 's/^<\|>$//g';
}

kvnum() {
	(
		flock -s 200
		sed 's/  .*//' "$1" | grep -Fnx -e "$2" | sed 's/:.*//'
	) 200>"$1.lock"
}

kvget() {
	num="$(kvnum "$1" "$2")"
	if ! [ -z "$num" ]; then
		sed -n "$num"'s/^\([^ ]* \)* //p' "$1"
	fi
}

kvset() {
	num="$(kvnum "$1" "$2")"
	if [ -z "$num" ]; then
		var "$2  $3" >> "$1"
	else
		printf '' > "$1.new"
		if [ "$num" != "1" ]; then
			sed -n '1,'"$(($num - 1))"'p' "$1" >> "$1.new"
		fi
		var "$2  $3" >> "$1.new"
		sed -n "$(($num + 1))"',$p' "$1" >> "$1.new"
		mv -f "$1.new" "$1"
	fi
}

kvdel() {
	num="$(kvnum "$1" "$2")"
	if ! [ -z "$num" ]; then
		sed -i "$num"'d' "$1"
	fi
}