add music shuffle and concept for main menu

private_dot_local/bin/executable_menu_main

@@ -1,4 +1,37 @@
-#!/usr/bin/foot fish
+#!/usr/bin/env bash
 
-open "$(find $HOME/Music | fzf)" &
+function run_menu() {
+  menu="$1"
+  if [[ -z "$menu" ]]
+  then 
+    menu="main"
+  fi
 
+  items="$(cat "$XDG_CONFIG_HOME/menu_main/$menu")"
+
+  echo "$XDG_CONFIG_HOME/menu_main/$menu"
+  echo "$items"
+
+  item="$(echo "$items" | sed -e 's|:.*$||' | walker --dmenu)"
+
+  action="$(echo "$items" | grep "^$item" | sed 's|^[^:]*:||' )"
+
+  exec_item "$action"
+}
+
+function exec_item() {
+  if [[ "$(echo "$action" | sed -e 's|:.*$||')" == "menu" ]]
+  then
+    menu_main "$(echo "$action" | sed -e 's|^[^:]*:||')"
+    exit
+  fi
+
+  if [[ "$(echo "$action" | sed -e 's|:.*$||')" == "exec" ]]
+  then
+    cd $XDG_CONFIG_HOME/menu_main
+    $(echo "$action" | sed -e 's|^[^:]*:||')
+  fi
+
+}
+
+run_menu "$1"

private_dot_local/bin/executable_shuffle

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+
+PLAYLIST="$1"
+
+set -e
+
+SONGS="$(find $HOME/Music -type f)"
+SONG_COUNT="$(echo "$SONGS" | wc -l)"
+
+function pick_song() {
+  num=$(( 1 + $RANDOM % $SONG_COUNT ))
+  echo "$SONGS" | sed "${num}q;d"
+}
+
+function get_flags() {
+  path="$1"
+  meuadata="flac"
+  genre="$(ffmpeg -i "${path}" 2>&1 | grep GENRE | sed -e 's/^.*: //')"
+  if [[ "$(echo "${path}" | sed -e 's/^.*\.\([^\.]*\)$/\1/')" == "mp3" ]]
+  then
+    metadata="mp3"
+    genre="$(id3v2 -l "${path}" | grep '^TCON' | sed -e 's/^.*: //')"
+  fi
+  echo $genre
+}
+
+function in_playlist() {
+  flags="$1"
+  playlist="$2"
+
+  playlists="
+    ALL:(HE|ME|LE)
+    HE:HE
+    MHE:(ME|HE)
+    ME:ME
+    LME:(LE|ME)
+    LO:LO
+    LOFI:LOFI
+    LE_LOFI:(LE|LOFI)
+  "
+  query="$(echo "$playlists" | grep --ignore-case " ${playlist}:" | sed 's/^.*://')"
+  
+  if [[ "$(echo "$flags" | grep -E --no-ignore-case "$query")" != "" ]]
+  then
+    echo true
+  else
+    echo false
+  fi
+}
+
+function get_like_level() {
+  flags="$1"
+
+  level="$(echo "$flags" | sed -e 's/^.*L\([0-3]\).*$/\1/')"
+  if [[ "$level" == "$(echo "$level" | tr -dc '0-3')" ]]
+  then
+    echo $level
+  fi
+}
+
+function shuffle() {
+  playlist="$1"
+
+  song="$(pick_song)"
+  flags="$(get_flags "$song")"
+  in_list=$(in_playlist "$flags" "$playlist")
+  like=$(get_like_level "$flags")
+  like_min=$(( 1 + $RANDOM % 3 ))
+
+  if [[ "$in_list" == "false" || "$like" -lt "$like_min" ]]
+  then
+    shuffle "$playlist"
+  else
+    mpd_song="$(echo "$song" | sed -e 's|.*/Music/||')"
+    echo "$mpd_song"
+    mpc add "$mpd_song"
+  fi
+}
+
+echo "$(shuffle $PLAYLIST)"
+