#!/bin/bash

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###Installation

##create mpdcorr.sh in /usr/bin
touch /usr/bin/mpdcorr.sh

##configure mpdcorr.sh
echo "#!/bin/bash" >> /usr/bin/mpdcorr.sh
echo "#configure mpd.conf for:" >> /usr/bin/mpdcorr.sh
#enable gapless_mp3_playback
echo "" >> /usr/bin/mpdcorr.sh
echo "#gapless_mp3_playback -> YES" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<gapless_mp3_playback\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<gapless_mp3_playback\>/s/\".*\"/\"yes\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
#enable replaygain and set to AUTO
echo "" >> /usr/bin/mpdcorr.sh
echo "#replaygain -> AUTO" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<replaygain\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<replaygain\>/s/\".*\"/\"auto\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
#disable replaygain_preamp
echo "" >> /usr/bin/mpdcorr.sh
echo "#replaygain_preamp -> 0" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<replaygain_preamp\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<replaygain_preamp\>/s/\".*\"/\"0\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
#disable volume_normalization
echo "" >> /usr/bin/mpdcorr.sh
echo "#volume_normalization -> NO" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<volume_normalization\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<volume_normalization\>/s/\".*\"/\"no\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
#set audio_buffer_size to 12288
echo "" >> /usr/bin/mpdcorr.sh
echo "#audio_buffer_size -> 12288" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<audio_buffer_size\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<audio_buffer_size\>/s/\".*\"/\"12288\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
#set buffer_before_play to 40%
echo "" >> /usr/bin/mpdcorr.sh
echo "#buffer_before_play -> 40%" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\buffer_before_play\>/s/#//' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh
echo "sed -i '/\<buffer_before_play\>/s/\".*\"/\"40%\"/' /etc/mpd.conf" >> /usr/bin/mpdcorr.sh

##make mpdcorr.sh executable
chmod 0755 /usr/bin/mpdcorr.sh

##stop mpd.service
systemctl stop mpd.service

##modify and restart mpd.service
sed -i '/^ExecStart=.*/i ExecStartPre=/usr/bin/mpdcorr.sh' /lib/systemd/system/mpd.service
systemctl daemon-reload
systemctl start mpd.service
echo mpdcorr.sh has successfully been created and activated

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