Add possibility to read the series from the audible library

AAXtoMP3

@@ -9,7 +9,7 @@ usage=$'\nUsage: AAXtoMP3 [--flac] [--aac] [--opus ] [--single] [--level <COMPRE
 [--chaptered] [-e:mp3] [-e:m4a] [-e:m4b] [--authcode <AUTHCODE>] [--no-clobber]
 [--target_dir <PATH>] [--complete_dir <PATH>] [--validate] [--loglevel <LOGLEVEL>]
 [--keep-author <N>] [--author <AUTHOR>] [--{dir,file,chapter}-naming-scheme <STRING>]  
-[--use-audible-cli-data] [--continue <CHAPTERNUMBER>] {FILES}\n'
+[--use-audible-cli-data] [--audible-cli-library-file <LIBRARY_PATH>] [--continue <CHAPTERNUMBER>] {FILES}\n'
 codec=libmp3lame            # Default encoder.
 extension=mp3               # Default encoder extension.
 level=-1                    # Compression level. Can be given for mp3, flac and opus. -1 = default/not specified.
@@ -35,6 +35,7 @@ audibleCli=0                # Default off, Use additional data gathered from mkb
 aaxc_key=                   # Initialize variables, in case we need them in debug_vars
 aaxc_iv=                    # Initialize variables, in case we need them in debug_vars
 ffmpegPath=                 # Set a custom path, useful for using the updated version that supports aaxc
+library_file=               # Libraryfile generated by mkb79/audible-cli
 
 # -----
 # Code tip Do not have any script above this point that calls a function or a binary.  If you do
@@ -81,6 +82,8 @@ while true; do
     --continue        ) continueAt="$2"; continue=1;                                    shift 2 ;;
                       # Use additional data got with mkb79/audible-cli
     --use-audible-cli-data ) audibleCli=1;                                              shift ;;
+                      # Path of the library-file, generated by mkb79/audible-cli (audible library export -o ./library.tsv)
+    -L | --audible-cli-library-file ) library_file="$2";                                shift 2 ;;
                       # Compression level
     --level           ) level="$2";                                                     shift 2 ;;
                       # Keep author number n
@@ -488,6 +491,15 @@ validate_extra_files() {
     return 1
   fi
 
+  # Test for library file
+  if [[ ! -r "${library_file}" ]] ; then
+    library_file_exists=0
+    debug "library file not found"
+  else
+    library_file_exists=1
+    debug "library file found"
+  fi
+
   debug "All expected audible-cli related file are here"
 }
 
@@ -538,6 +550,21 @@ save_metadata() {
         "CHAPTER\((.key))=\(((.value.start_offset_ms / (1000*60*60)) %24 | floor | pad(2))):\(((.value.start_offset_ms / (1000*60)) %60 | floor | pad(2))):\(((.value.start_offset_ms / 1000) %60 | floor | pad(2))).\((.value.start_offset_ms % 1000 | pad(3)))
 CHAPTER\((.key))NAME=\(.value.title)"' "${extra_chapter_file}" > "${tmp_chapter_file}"
     fi
+
+    # get extra meta data from library.tsv
+    if [[ "${library_file_exists}" == 1 ]]; then
+      asin=$(jq -r '.content_metadata.content_reference.asin' "${extra_chapter_file}")
+      if [[ ! -z "${asin}" ]]; then
+        lib_entry=$(grep "^${asin}" "${library_file}")
+        if [[ ! -z "${lib_entry}" ]]; then
+          series_title=$(echo "${lib_entry}" | awk -F '\t' '{print $6}')
+          series_sequence=$(echo "${lib_entry}" | awk -F '\t' '{print $7}')
+          sed -i "/^  Metadata:/a\\
+    series          : ${series_title}\\
+    series_sequence : ${series_sequence}" "${metadata_file}"
+        fi
+      fi
+    fi
   fi
   debug "Metadata file $metadata_file"
   debug_file "$metadata_file"
@@ -645,6 +672,8 @@ do
   album="$(get_metadata_value album)"
   album_date="$(get_metadata_value date)"
   copyright="$(get_metadata_value copyright)"
+  series="$(get_metadata_value series)"
+  series_sequence="$(get_metadata_value series_sequence)"
 
   # Get more tags with mediainfo
   if [[ $(type -P mediainfo) ]]; then
@@ -743,6 +772,8 @@ do
       -metadata description="${description}" \
       -metadata composer="${narrator}" \
       -metadata publisher="${publisher}" \
+      -metadata series="${series}" \
+      -metadata series_sequence="${series_sequence}" \
       -f ${container} \
       "${output_file}"
     if [ "$((${loglevel} > 0))" == "1" ]; then