====== Add played music to database  ======
This script is an updated version of my script to [[linux:ubuntu:alexamusictitleonwebsite|display playing music title on website]]. It will write all the artists, tracks and albums to a MySQL database.

**Update 2021-12-29:** Amazon redesigned the output via alexa.amazon.de, the string for "album" is now always empty, so can only get the state, artist and title at the moment. If you use Spotify you might want to check out my Spotify script. I also thought about a way to get an album via artist and track out of a musicdatabase (like musicbrainz) but I dont know yet if this will work. 

===== Database =====

{{:linux:ubuntu:pasted:20191124-223313.png?500}}

<code mysql amazonmusic.sql>
CREATE TABLE `album` (
  `artist_id` smallint(5) NOT NULL DEFAULT '0',
  `album_id` smallint(5) NOT NULL AUTO_INCREMENT,
  `album_name` char(128) DEFAULT NULL,
  `album_cover` varchar(1000) DEFAULT NULL,
  PRIMARY KEY (album_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `artist` (
  `artist_id` smallint(5) NOT NULL AUTO_INCREMENT,
  `artist_name` char(128) DEFAULT NULL,
  PRIMARY KEY (artist_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `played` (
  `artist_id` smallint(5) NOT NULL DEFAULT '0',
  `album_id` smallint(5) NOT NULL DEFAULT '0',
  `track_id` smallint(5) NOT NULL DEFAULT '0',
  `played` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `track` (
  `track_id` smallint(5) NOT NULL AUTO_INCREMENT,
  `track_name` char(255) DEFAULT NULL,
  `artist_id` smallint(5) NOT NULL DEFAULT '0',
  `album_id` smallint(5) NOT NULL DEFAULT '0',
  PRIMARY KEY (track_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
</code>

===== Script =====

==== Bashscript ====

<code bash copyTracksinSQL.sh>
#!/bin/bash

#Login MySQL
LOGIN="local"

#Database MySQL
DB=amazonmusic

#Temp- and Webfile
TMPFILE=/tmp/audio.txt
WEBFILE=/var/www/mysite/audio.php
WEBFILE2=/var/www/mysite/audio2.php

#Execute Alexa Remote Control to get the current data and write into $TMPFILE
/alexa/alexa-remote-control/alexa_remote_control.sh -q > $TMPFILE

#Get the necessary data from $TMPFILE
OFFLINE=`grep -m1 'message' $TMPFILE | awk 'BEGIN{FS=" "}{gsub(",",""); print $2}'`
STATE=`grep -m1 'state' $TMPFILE | cut -d '"' -f 4`
STATECUT=`grep -m1 'state' /tmp/audio.txt | awk 'BEGIN{FS=" "}{gsub(",",""); print $2}'`
ARTIST=`grep -m1 'subText1' $TMPFILE | cut -d '"' -f 4`
TITLE=`grep -m1 'title' $TMPFILE | cut -d '"' -f 4`
ALBUM=`grep -m1 'subText2' $TMPFILE | cut -d '"' -f 4`
IMG=`grep -m1 'url' $TMPFILE | cut -d '"' -f 4`

#If $WEBFILE exists, make a copy of it ($WEBFILE2) and empty $WEBFILE, else create an empty $WEBFILE
if [ -f $WEBFILE ]; then
   cp -a $WEBFILE $WEBFILE2
   echo "" > $WEBFILE
else
   echo "" > $WEBFILE
fi

#If $OFFLINE isnt null and $STATECUT isnt null, write all the data to $WEBFILE, else you are not listening to music
if [ "$OFFLINE" != "null" ] && [ "$STATECUT" != "null" ]; then
   echo "<table style='width:100%'><col style='width:90%'><col style='width:10%'><tr><td>" >> $WEBFILE
   echo "State: $STATE </br>" >> $WEBFILE
   echo "Artist: $ARTIST </br>" >> $WEBFILE
   echo "Title: $TITLE </br>" >> $WEBFILE
   echo "Album: $ALBUM" >> $WEBFILE
   echo "</td><td>" >> $WEBFILE
   echo "<img src='$IMG' alt='albumcover' style='width:64px;height:64px;'>" >> $WEBFILE
   echo "</td></tr></table>" >> $WEBFILE
else
   echo "Iam not listening to music right now..." >> $WEBFILE
fi

#The following section compares the $WEBFILEs to make sure you dont write data multiple times for the same track
#Use cmp if it works for you or just use MD5 like I did

#HASH="$(cmp --silent $WEBFILE $WEBFILE2; echo $?)"  #"$?" gives exit status for each comparison
#If a FILE is '-' or missing, read standard input. Exit status is 0 if inputs are the same, 1 if different, 2 if trouble.
#cmp showed 2 (error) all the time, even in cli, feel free to use if it works for you...

#MD5 Hash of both webfiles to compare
HASHONE=$(md5sum $WEBFILE | cut -d " " -f1)
HASHTWO=$(md5sum $WEBFILE2 | cut -d " " -f1)

#if [ "$HASH" -eq 1 ] #use this if you use cmp, if status is equal to 1 (different), then execute code
if [ "$HASHONE" != "$HASHTWO" ] #compare md5 hashes, if different, then execute code
then  

#Look for the current track, artist, album, if not in database, insert, else dont insert
DBTRACK=$(mysql --login-path=$LOGIN -D $DB -se "SELECT track_id FROM track WHERE track_name = '$TITLE'")
DBARTIST=$(mysql --login-path=$LOGIN -D $DB -se "SELECT artist_id FROM artist WHERE artist_name = '$ARTIST'")
DBALBUM=$(mysql --login-path=$LOGIN -D $DB -se "SELECT album_id FROM album WHERE album_name = '$ALBUM'")

if [ -z "$DBTRACK" ]
then
        if [ -z "$DBALBUM" ]
        then
                if [ -z "$DBARTIST" ]
                then
mysql --login-path=$LOGIN -D $DB << EOFMYSQL
INSERT INTO artist (artist_name)
VALUES ('$ARTIST');
EOFMYSQL
                fi
mysql --login-path=$LOGIN -D $DB  << EOFMYSQL
INSERT INTO album (album_name,album_cover,artist_id)
VALUES ('$ALBUM','$IMG',(SELECT artist_id FROM artist WHERE artist_name = '$ARTIST'));
EOFMYSQL
        fi
mysql --login-path=$LOGIN -D $DB << EOFMYSQL
INSERT INTO track (track_name,album_id,artist_id)
VALUES ('$TITLE',(SELECT album_id FROM album WHERE album_name = '$ALBUM'),(SELECT artist_id FROM artist WHERE artist_name = '$ARTIST'));
EOFMYSQL
fi

mysql --login-path=$LOGIN -D $DB << EOFMYSQL
INSERT INTO played (artist_id,track_id,album_id)
VALUES ((SELECT artist_id FROM artist WHERE artist_name = '$ARTIST'),(SELECT track_id FROM track WHERE track_name = '$TITLE'),(SELECT album_id FROM album WHERE album_name = '$ALBUM'));
EOFMYSQL


fi
</code>

==== Automation ====

The bashscript can be automated via crontab (example runs every 2 minutes).

<code>
*/2 * * * * /alexa-remote-control/copyTrackinSQL.sh >/dev/null 2>&1
</code>