ptgdp: Add notification support, make logging more verbose

ptgdp

@@ -21,18 +21,34 @@ _musiclink="${XDG_MUSIC_DIR:-$HOME/Music}/PTGDP Songs"
 
 # Helper functions
 log() {
-	[ -z "$1" ] && return 1
+	[ -z "$1" ] && return 1 # Message body
 	printf "%s: %s\\n" \
 		"$_name" \
 		"$1"
 }
 error() {
-	[ -z "$1" ] && return 1
-	[ -z "$2" ] && return 2
+	[ -z "$1" ] && return 1 # Message body
+	[ -z "$2" ] && return 2 # Exit code
 	log "$1"
 	exit "${2:-1}"
 }
+notify() {
+	[ -z "$_optrofi" ] && return 0
+	[ -z "$1" ] && return 1 # Title
+	[ -z "$2" ] && return 2 # Body
+	local urg="${3:-normal}" # Urgency
+	local icon="${4:-dialog-information}" # Icon
+	local timeout="${5:-3000}" # Timeout in milliseconds
+	notify-send \
+		-a "$_name" \
+		-i "$icon" \
+		-u "$urg" \
+		-t "$timeout" \
+		"$1" \
+		"$2" > /dev/null 2>&1
+}
 validatedeps() {
+	# $@: Dependencies to validate
 	for prog in "$@"; do
 		if ! command -v "$prog" > /dev/null 2>&1; then
 			_return="$prog"
@@ -42,7 +58,7 @@ validatedeps() {
 	return 0
 }
 sanitize() {
-	[ -z "$1" ] && return 1
+	[ -z "$1" ] && return 1 # String to strip special chars from
 	_return="${1//[^ a-zA-Z0-9\[\]|()_-]/}"
 }
 
@@ -74,13 +90,16 @@ files are cached in your Music folder under "JPTGDP Songs" for offline use.
   -s			Shuffle the playlist
 
   -r <directory>	Start up rofi, if installed, and present a listing of
-			all .gdp files in the given directory
+			all .gdp files in the given directory. If notify-send
+			is installed, this will also send notifications
+			pertaining to playlist status.
 
   -h			Print this help text
 
 Copyright (c) 2019 rehashedsalt@cock.li
 Licensed under the MIT license
 EOF
+	notify "Test" "shit"
 }
 rofimenu() {
 	validatedeps rofi || error "$_return is not currently installed" 1
@@ -96,6 +115,9 @@ rofimenu() {
 			playlists+="$filebase"
 		done <<< "$files"
 	else
+		notify "No playlists found" \
+			"No playlists could be found in directory \"$_optrofi\"." \
+			normal dialog-error 5000
 		error "No playlists found" 61
 	fi
 	choice="$(rofi -dmenu -i -p "$_name" <<< "$playlists")"
@@ -116,6 +138,9 @@ playlist() {
 			log "Music can be found at \"$_musicdir\""
 		fi
 	fi
+	local -i dlexist=0
+	local -i dlsuccess=0
+	local -i dlfailure=0
 	while read line; do
 		[ -z "$line" ] && continue
 		rm "$_tmpfile"* > /dev/null 2>&1
@@ -133,11 +158,18 @@ playlist() {
 				ytsearch:"$line" \
 				> /dev/null 2>&1 &
 			if wait $!; then
+				dlsuccess+=1
 				mv "$_tmpfile"* "$filename"
 			else
-				log "No results found for \"$line\""
+				dlfailure+=1
+				notify "Could not download song" \
+					"youtube-dl did not download a song for \"$line\", either because it is out of date or because it could not find a video to rip from" \
+					normal dialog-error 3000
+				log "Could not download song \"$line\""
 				continue
 			fi
+		else
+			dlexist+=1
 		fi
 		[ -z "$_optdownloadonly" ] && audacious -e "$filename"
 		if [ -n "$_optautoplay" ]; then
@@ -145,10 +177,20 @@ playlist() {
 			unset _optautoplay
 		fi
 	done < <(if [ -n "$_optshuffle" ]; then shuf "$1"; else cat "$1"; fi)
-	if [ -z "$_optdownloadonly" ]; then
-		log "Finished building queue"
+	if [ "$dlexist" = "0" ] && [ "$dlsuccess" = "0" ]; then
+		notify "Failed to enqueue playlist" \
+			"The playlist could not be enqueued. Ensure that youtube-dl is up to date, you have a valid internet connection, and your search queries pull up results" \
+			normal dialog-error 10000
 	else
-		log "Finished downloading"
+		if [ -z "$_optdownloadonly" ]; then
+			notify "Finished building queue" \
+				"The playlist queue has been built in Audacious"
+			log "Finished building queue: $dlexist cached, $dlsuccess downloaded, $dlfailure failed"
+		else
+			notify "Finished precaching" \
+				"Your songs have been cached and are ready for offline playback"
+			log "Finished downloading: $dlexist cached, $dlsuccess downloaded, $dlfailure failed"
+		fi
 	fi
 }