appleMusicAlbumArt.sh

#!usr/bin/env zsh

# TODO
# Comment
# Fix Control Flow
# Button Select for Pywal instead of only automatic. maybe a flag for automatic.
# See if I can get it centered
# Maybe rewrite it in a less useless language
# Crashes when no album art. 
# suppress output of some commands with : $()
# add flags for what you want to pywal, maybe detect what you have eg wal-discord, wal-vtop, pywalfox 

applscriptFunction() {
osascript <<EOD
    on getTrackName()
	set theName to ""
	try
		with timeout of 2 seconds
			tell application "Music"
				if it is running then
					set theName to name of current track
				end if
			end tell
		end timeout
	end try
	-- log "The current track is " & theName
	return theName
end getTrackName

on getAlbumArt()
	-- get the raw bytes of the artwork into a var
	tell application "Music" to tell artwork 1 of current track
		set srcBytes to raw data
		-- figure out the proper file extension
		if format is «class PNG » then
			set ext to ".png"
		else
			set ext to ".jpg"
		end if
	end tell
	
	-- get the filename to ~/Desktop/cover.ext
	set fileName to (((path to home folder) as text) & ".cache:cover" & ext)
	-- write to file
	set outFile to open for access file fileName with write permission
	-- truncate the file
	set eof outFile to 0
	-- write the image bytes to the file
	write srcBytes to outFile
	close access outFile
	-- log "Album Artwork Written"
	return true
end getAlbumArt

on musicIsRunning()
	set isRunning to false
	try
		with timeout of 2 seconds
			tell application "Music"
				if it is running then
					set isRunning to true
				end if
			end tell
		end timeout
	end try
	if isRunning is true then
		-- log "Music is running"
		return true
	else
		return false
	end if
end musicIsRunning

on firstRun()
	set forever to false
	repeat until forever is true
		-- log "First Run"
		if musicIsRunning() is true and getTrackName() is not "" then
			set firstTrack to getTrackName()
			if firstTrack is not null then
				getAlbumArt()
				exit repeat
			else
				delay 2
			end if
		else
			delay 2
		end if
	end repeat
	return firstTrack
end firstRun

set currentTrack to firstRun()
-- log "made it"
set newTrack to getTrackName()
-- log newTrack
set forever to false

repeat while forever is false
	-- log {"Current Track", currentTrack}
	-- log {"New Track", newTrack}
	
	if currentTrack is equal to newTrack then
		set newTrack to getTrackName()
		delay 2
	else if newTrack is not equal to currentTrack and newTrack is not "" then
		getAlbumArt()
		do shell script "/bin/bash -s <<'EOF'
clear && /Users/brandon/.iterm2/imgcat /Users/brandon/.cache/cover.jpg
EOF"
		
		set currentTrack to newTrack
		set newTrack to getTrackName()
	else
		firstRun()
	end if
end repeat
EOD
}

applscriptFunction & 
tput civis
oscascriptProcess=$(pgrep -P $!)
# echo $oscascriptProcess

currentBytes=$(wc -c /Users/<USERNAME>/.cache/cover.*)

FILE=$(/bin/ls -t /Users/<USERNAME>/.cache/cover* | head -1)

if [[ -f $(echo $FILE*) ]]; then
    clear && /Users/<USERNAME>/.iterm2/imgcat $FILE && : $(/usr/local/bin/wal -ni $FILE --saturate 1.0 && /usr/local/bin/pywalfox update) && osascript -e 'set theName to ""' -e 'set theArtist to ""' -e 'set theAlbum to ""' -e 'try' -e 'with timeout of 2 seconds' -e 'tell application "Music"' -e 'if it is running then' -e 'set theName to name of current track' -e 'set theArtist to artist of current track' -e 'set theAlbum to album of current track' -e 'end if' -e 'end tell' -e 'end timeout' -e 'end try' -e 'if theName is not "" then' -e 'return "Song: " & theName & "\n" & "By: " & theArtist & "\n" & "Album: " & theAlbum' -e 'else if theName is "" then' -e 'return ""' -e 'end if'
fi

while : ; do
	FILE=$(/bin/ls -t /Users/<USERNAME>/.cache/cover* | head -1)
    read -t 2 -n 1
    if [ $? = 0 ] ; then
        kill $oscascriptProcess &
        clear
        tput cnorm
        exit ;
    else
        newBytes=$(wc -c $FILE)
        if [ "$currentBytes" = "$newBytes" ]; then
            newBytes=$(wc -c $FILE)
        elif [ "$currentBytes" != "$newBytes" ]; then
            currentBytes=$newBytes
    clear && /Users/<USERNAME>/.iterm2/imgcat $FILE && : $(/usr/local/bin/wal -ni $FILE --saturate 1.0 && /usr/local/bin/pywalfox update) && osascript -e 'set theName to ""' -e 'set theArtist to ""' -e 'set theAlbum to ""' -e 'try' -e 'with timeout of 2 seconds' -e 'tell application "Music"' -e 'if it is running then' -e 'set theName to name of current track' -e 'set theArtist to artist of current track' -e 'set theAlbum to album of current track' -e 'end if' -e 'end tell' -e 'end timeout' -e 'end try' -e 'if theName is not "" then' -e 'return "Song: " & theName & "\n" & "By: " & theArtist & "\n" & "Album: " & theAlbum' -e 'else if theName is "" then' -e 'return ""' -e 'end if'
        fi
    fi
done