rework media_control to remember the last player

README.md:              mention that some scripts uses hardcoded locations

scripts/media_is_spotify_playing.sh:    use dbus to get spotify PlaybackStatus

scripts/media_control:  1) introduce a new file: /tmp/media_control_last
                        2) use this file to store the last active player
                        3) send the command to the last active player if no
                            player is running

3 files changed, 89 insertions, 45 deletions

diff --git a/README.md b/README.md
index 17d08a1..ac5a6dd 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,8 @@
 # my dotfiles
+---
+
+## Installation
+Some scripts use a hardcoded location so please locate the dotfile repo
+at $HOME/.dotfiles.  
+To do this run
+```git clone https://github.com/fischerling/dotfiles $HOME/.dotfiles```.
diff --git a/scripts/media_control.sh b/scripts/media_control.sh
index b158586..d8f7f79 100755
--- a/scripts/media_control.sh
+++ b/scripts/media_control.sh
@@ -1,9 +1,7 @@
 #!/bin/bash
 
-#TODO
-# NOTE:
-# if spotify is running toggle is consumed by spotify.
-
+# To start the correct Player this script uses the file /tmp/media_control_last
+f="/tmp/media_control_last"
 
 function spotify_send_command {
         dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.$1
@@ -55,8 +53,8 @@ then
             exit
         fi
 
-        spotify_playing=$(./media_is_spotify_playing.sh)
-        if $(mpc | grep "\[playing\]")
+        spotify_playing=$($HOME/.dotfiles/scripts/media_is_spotify_playing.sh)
+        if mpc | grep "\[playing\]" &> /dev/null
         then
             mpd_playing=true
         else
@@ -69,25 +67,40 @@ then
         elif $spotify_playing
         then
             spotify_send_command $spotify_cmd
+            echo spotify > $f
         elif $mpd_playing
         then
             mpc $1
-            # nothing is actually running
-            # don't know who was playing -> send spotify all commands 
+            echo mpd > $f
+        # nothing is actually running
+        # read last running file
         else
-            spotify_send_command $spotify_cmd
+            if [ -f $f ]
+            then
+                last=$(cat $f)
+
+                if [ $last = "spotify" ]
+                then
+                    spotify_send_command $spotify_cmd
+                elif [ $last = "mpd" ]
+                then
+                    mpc $1
+                fi
+            fi
         fi
 
     # only spotify is running
     elif $spotify_running
     then
         spotify_send_command $spotify_cmd
+        echo spotify > $f
     # only mpd is running
     elif $mpd_running
     then
         if $mpd_controllable
         then
             mpc $1
+            echo mpd > $f
         else
             >&2 echo "mpd is running put mpc is not available to control it!"
         fi
diff --git a/scripts/media_is_spotify_playing.sh b/scripts/media_is_spotify_playing.sh
index 8c10aad..f4f32a5 100755
--- a/scripts/media_is_spotify_playing.sh
+++ b/scripts/media_is_spotify_playing.sh
@@ -1,45 +1,69 @@
 #!/bin/bash
 
-spotify_running=false
+# this script returns 0 if spotify is playing 1 otherwise
 
-if pgrep spotify &>/dev/null
+# spotify's dbus interface is able to tell us it PlaybackStatus :)
+
+status=`dbus-send --print-reply --dest=org.mpris.MediaPlayer2.spotify \
+/org/mpris/MediaPlayer2 org.freedesktop.DBus.Properties.Get \
+string:'org.mpris.MediaPlayer2.Player' string:'PlaybackStatus' 2> /dev/null`
+
+if [ $? -ne 0 ]
 then
-    if type pacmd &>/dev/null
-    then
-        output=$(pacmd list-sink-inputs)
-        state=""
-        spotify_running=false
-
-        while read -r line; do
-            if [[ $line == *state* ]]
-            then
-                if [[ $line == *RUNNING* ]]
-                then
-                    state="RUNNING" 
-                else
-                    state=""
-                fi
-            fi
-
-            if [[ $line == *application.name* ]]
-            then
-                if [[ $state == "RUNNING" ]] && [[ $line == *Spotify* ]]
-                then
-                    spotify_running=true
-                    break
-                fi
-            fi
-        done <<< "$output"
-    elif lsof | grep /dev/snd | grep spotify &>/dev/null
-    then
-        spotify_running=true
-    fi
+    echo false
+    exit 1
 fi
 
-echo $spotify_running
-if [[ $spotify_running == "true" ]]
+status=$(echo $status | grep -o -e \".*\" | cut -d \" -f 2)
+
+if [ $status != "Playing" ]
 then
-    exit 0
-else
+    echo false
     exit 1
 fi
+
+echo true
+
+#spotify_running=false
+
+#if pgrep spotify &>/dev/null
+#then
+    #if type pacmd &>/dev/null
+    #then
+        #output=$(pacmd list-sink-inputs)
+        #state=""
+        #spotify_running=false
+
+        #while read -r line; do
+            #if [[ $line == *state* ]]
+            #then
+                #if [[ $line == *RUNNING* ]]
+                #then
+                    #state="RUNNING"
+                #else
+                    #state=""
+                #fi
+            #fi
+
+            #if [[ $line == *application.name* ]]
+            #then
+                #if [[ $state == "RUNNING" ]] && [[ $line == *Spotify* ]]
+                #then
+                    #spotify_running=true
+                    #break
+                #fi
+            #fi
+        #done <<< "$output"
+    #elif lsof | grep /dev/snd | grep spotify &>/dev/null
+    #then
+        #spotify_running=true
+    #fi
+#fi
+
+#echo $spotify_running
+#if [[ $spotify_running == "true" ]]
+#then
+    #exit 0
+#else
+    #exit 1
+#fi