#!/bin/bash
#2026 miredo

version="3"
refresh_time=30

#strip out excess keypresses
cleanbuffer() {
	while read -t 0
	do
		read -N 1 -s
	done
}

#reset all colors
reset_col() {
	echo -e -n "\033[0m"
}

check_scrollback() {
	echo "$msg_raw" | less
}

#set the color
#usage: set_col color bold
#color 30-37: blk, red, grn, ylw, blu, mag, cyn, wht
#40-47 set the background color
#bold is 1 or 0
set_col() {
	echo -e -n "\033[$2;$1m"
}

#sends a message via cURL
#TODO: should we set our own referrer? might be useful/fun
#TODO: add some color
send_msg() {
	reset_col
	echo
	IFS= read -e -r -p "message: " mymsg
	curl -s \
		--data-urlencode "mode=regist" \
		--data-urlencode "name=$username" \
		--data-urlencode "email=" \
		--data-urlencode "password=" \
		--data-urlencode "comment=$mymsg" \
		--data-urlencode "face=" \
		--data-urlencode "color=0" \
		--data-urlencode "retime=0" \
		--data-urlencode "lines=1" \
		--data-urlencode "autoclear=on" \
		https://cgi.heyuri.net/chat/comchat.cgi > /dev/null

}

#shows the help
show_help() {
	reset_col
	clear
	set_col 34 1
	echo "command keys:"
	echo "q - quit"
	echo "? - show this help message"
	echo "/ - send a message (leave the message blank to cancel)"
	echo "r - refresh"
	echo "p - view the chat scrollback (via the less command, press q to exit)"
	echo "other notes:"
	echo "* refresh the screen if you change your terminal size"
	echo "* any unused key will also refresh, not just r"
	reset_col
	echo "Press any key to continue."
	read -N 1 -s
}

#main program starts here, shows the intro
reset_col
clear
set_col 36 0
echo "miredo's very very lazy comchat client for Chat@Heyuri"
echo "version $version"
set_col 36 1
IFS= read -e -r -p "username: " username

#main loop here
while true
do
	#get terminal size
	scr_w=`tput cols`
	scr_h=`tput lines`
	#load and format the message list
	reset_col
	set_col 31 1
	echo -n "[loading...]"
	cleanbuffer
	#TODO: handle HTML entities somehow lol (or at least find and replace " and &)
	#TODO: strip all control characters - probably not ever going to be an issue, but there isn't a real reason to not do it for sanity's sake
	msg_raw="$( curl -s https://cgi.heyuri.net/chat/simplelog.txt) "
	msg="$( echo "$msg_raw" | fold -s -w $scr_w | head -n $(expr $scr_h - 4) )"
	clear
	set_col 44 0
	set_col 37 1
	echo "[refeshed on $(date) | ($scr_w"x"$scr_h) | reload: $refresh_time"s"]"
	#display the messages
	#dumb hack that admittedly doesn't matter to show the first line in a diferent color
	reset_col
	set_col 37 1
	echo "$msg" | head -n 1
	reset_col
	echo "$msg" | tail -n +2
	set_col 44 0
	set_col 37 1
    echo -n "keys: q-quit, /-send, r-refresh, ?-help"
	reset_col
	#handle user commands
	read -t $refresh_time -N 1 -s inp
	#quit
	if [[ "$inp" == "q" ]]
	then
		clear
		exit 1
	fi
	#post
	if [[ "$inp" == "/" ]]
	then
		send_msg
	fi
	#view whole scrollback of posts
	if [[ "$inp" == "p" ]]
	then
		check_scrollback
	fi
	if [[ "$inp" == "?" ]]
	then
		show_help
	fi
	cleanbuffer
	set_col 33 1
	echo -n "[refreshing...]"
	reset_col
	sleep 1 #minimum time so we don't hammer the site with a bunch of requests
done