#!/usr/bin/env zsh
# Upload to various file hosts

# colors
c0=$(tput sgr0)
c1=$(tput setaf 1)
c2=$(tput setaf 2)
# filename to use for screenshots
local_temp=$(mktemp)

# screenshot functions
cap_fullscreen() {
	local_file="$local_temp.png"
	mv $local_temp $local_file
	maim -u $local_file
}

cap_selection() {
	local_file="$local_temp.png"
	mv $local_temp $local_file
	maim -s -u $local_file
}

cap_window() {
	mv $local_temp $local_temp.png
	maim -i $(xprop -root _NET_ACTIVE_WINDOW | grep -o '0x.*') --hidecursor
}

# delay
delay_seconds='0'
# hosts and shorteners
host='uguu'
shortener=
hosts='uguu teknik 0x0 mixtape ptpb lewd'
shorteners='waaai 0x0'

##
usage() {
  cat <<EOF
Upload to various file hosts

Usage: ${0:A:t} [options]

Options:
  -d SECS  Delay the screenshot by the specified number of seconds.
  -f       Take a fullscreen screenshot.
  -h       Show this help message.
  -l URL   Upload the file at the provided URL.
  -o       Select a host to use. Can be uguu, teknik, 0x0, ptpb, mixtape or lewd.
  -p PATH  Custom path to save the image to. Saves the image as "%Y-%m-%d %H-%M-%S.png".
  -s       Take a selection screenshot.
  -S       Select a shortener to use. Can be waaai or 0x0.
  -u FILE  Upload a file.
  -w       Take a screenshot of the current window.
  -x       Do not notify dbus, update the log, or modify the clipboard.

EOF
}

delay() {
	for (( i=delay_seconds; i>0; --i )); do
		echo "$i..."
		sleep 1
	done
}

screenshot() {
	if [[ -n $doFullscreen ]]; then
		cap_fullscreen
	elif [[ -n $doSelection ]]; then
		cap_selection &>/dev/null
		if ! [[ -s $local_file ]]; then
			$(rm "$local_file" 2> /dev/null)
			exit
		fi
	elif [[ -n $doWindow ]]; then
		cap_window
	elif [[ -n $doURL ]]; then
    local urlext
		if [[ -f /usr/share/mime/globs ]]; then
			urlext=$(curl -sf --head "${remoteURL}" | grep 'Content-Type: ' | head -1 | grep -Po '(?<=\ )[^\;]*')
			urlext=$(echo "${urlext}" | sed -e "s/\\r//")
			urlext=$(cat /usr/share/mime/globs | grep "${urlext}" | sort -r | head -1 | grep -Po '(?<=\.)[^\n]*')
		else
			urlext="$(basename ${remoteURL})"
			urlext=${urlext#*.}
		fi
		local_file="${local_temp}.${urlext}"
		$(curl -sf "${remoteURL}" > "${local_file}")
	fi
}

upload() {
	for (( i = 1; i <= 3; i++ )); do
		echo -n "Try #${i}... "

		case "${host}" in
			teknik) hostURL='https://api.teknik.io/v1/Upload' ;;
			0x0) hostURL='https://0x0.st/' ;;
			uguu) hostURL='https://uguu.se/api.php?d=upload-tool' ;;
			ptpb) hostURL='https://ptpb.pw/' ;;
			mixtape) hostURL='https://mixtape.moe/upload.php' ;;
			lewd) hostURL='https://lewd.se/api.php?d=upload-tool' ;;
		esac

		case "${shortener}" in
			waaai) shortenerURL='https://api.waa.ai/shorten' ;;
			0x0) shortenerURL='http://0x0.st/' ;;
			ptpb) shortenerURL='https://ptpb.pw/u'
		esac

		if [ "${host}" = 'uguu' ]; then
			uploadResult="$(curl -sf -F file="@${local_file}" "${hostURL}")"
		elif [ "${host}" = '0x0' ]; then
			uploadResult="$(curl -sf -F file="@${local_file}" "${hostURL}")"
		elif [ "${host}" = 'teknik' ]; then
			uploadResult="$(curl -sf -F file="@${local_file}" "${hostURL}")"
			uploadResult="${uploadResult##*url\":\"}"
			uploadResult="${uploadResult%%\"*}"
		elif [ "${host}" = 'mixtape' ]; then
			uploadResult="$(curl -sf -F files[]="@${local_file}" "${hostURL}")"
			uploadResult="$(echo "${uploadResult}" | grep -Eo '"url":"[A-Za-z0-9]+.*",' | sed 's/"url":"//;s/",//')"
			uploadResult="$(echo "${uploadResult//\\\//\/}")"
		elif [ "${host}" = 'ptpb' ]; then
			uploadResult="$(curl -sf -F c="@${local_file}" "${hostURL}")"
			uploadResult="${uploadResult##*url: }"
			uploadResult="${uploadResult%%$'\n'*}"
		elif [ "${host}" = 'lewd' ]; then
			uploadResult="$(curl -sf -F file="@${local_file}" "${hostURL}")"
		fi

		if [ "${shortener}" = 'waaai' ]; then
			tempResult="$(curl -sf -F url="${uploadResult}" "${shortenerURL}")"
			shortCode="${tempResult##*short_code\":\"}"
			shortCode="${shortCode%%\"*}"
			shortenerResult="https://waa.ai/${shortCode}"
			shortenerExtension="${tempResult##*extension\":}"
			shortenerExtension="${shortenerExtension%%\}*}"
			if [[ $shortenerExtension == true ]]; then
				shortenerExtension=${shortenerExtension##\"}
				shortenerExtension=${shortenerExtension%%\"}
				shortenerResult="${shortenerResult}.${shortenerExtension}"
			fi
		elif [[ $shortener == '0x0' ]]; then
			shortenerResult="$(curl -sf -F shorten="${uploadResult}" "${shortenerURL}")"
		elif [[ $shortener == 'ptpb' ]]; then
			shortenerResult="$(curl -sf -F c=@- "${shortenerURL}" <<< "${uploadResult}")"
		fi

		if [[ -n $shortener ]]; then
			finalResult="$shortenerResult"
		else
			finalResult="$uploadResult"
		fi

		if [[ $? == 0 ]]; then
			# copy to clipboard, log, and notify (unless $noComms is set)
			if [ ! "${noComms}" ]; then
					echo -n "${finalResult}" | xclip -selection primary
					echo -n "${finalResult}" | xclip -selection clipboard
					echo "$(date +"%D %R") | "${file}" | "${finalResult}"" >> ~/.uguush.log
					notify-send 'uguu~' "${finalResult}"
			fi
		fi

		echo "[${c2}OK${c0}]"
		echo "File has been uploaded: ${finalResult}"

		# if we took a screenshot, remove the temporary file
		if [[ -z $doFile ]]; then
			rm $local_file
		fi

		exit
	done
}

path() {
	if [[ $saveToPath == true ]]; then
		cp $local_file "$pathToSave/$(basename "$local_file")"
	fi
}


##
while getopts :d:fho:p:su:wxS:l: opt; do
	case $opt in
    d) # set delay value
       delay_seconds="$OPTARG" ;;
    f) # take fullscreen shot
       doFullscreen='true' ;;
    h) # print help
			 usage
			 exit 0 ;;
		o) # set host
			 [[ "${hosts}" =~ "$OPTARG" ]] && host="$OPTARG" || exit 1 ;;
		s) # take shot of selection
			 doSelection='true' ;;
		u) # change $file to the specified file with -u
			 doFile='true'
			 local_file="$OPTARG" ;;
		w) # take shot of current window
			 doWindow='true' ;;
		x) # do not notify dbus, update log, or modify clipboard
			 noComms='true' ;;
		S) # set shortener
			 [[ $shorteners =~ "$OPTARG" ]] && shortener="$OPTARG" || exit 1 ;;
		l) # set url to upload
			 doURL='true'
			 remoteURL="${OPTARG}" ;;
		p) # set path to save file
			 saveToPath='true'
			 pathToSave="${OPTARG}" ;;
		*) # print help and EXIT_FAILURE
			 usage
			 exit 1 ;;
	esac
done

# show usage if no arguments are given
if (( $# < 1 )); then
	usage
	exit 1
fi

delay
screenshot
path
upload

# if the program doesn't exit at the for-loop, the upload failed
>&2 echo 'File was not uploaded, did you specify a valid filename?'
exit 1