From 0a9a8545bef41ac0e19445d3f0ce4eca9e97c9f5 Mon Sep 17 00:00:00 2001
From: catduckgnaf <github@catduck.org>
Date: Fri, 8 Dec 2023 14:46:21 -0500
Subject: [PATCH] Adding Script to Combine MP3 Post Download to M4B

This "should" work. It is a new script that will be designed for audiobooks. I included ffmpeg in the build itself, verse a docker mod.  The goal of this script is to recreate what calibre-server does for metadata, Assuming this PR is approved (and I may need some help) I want to add tone and metadata. This is a good first step by combining multiple mp3s and even m4bs into one clean file.
---
 readarr/AutoConfig.bash | 11 ++++++++++
 readarr/combine.bash    | 47 +++++++++++++++++++++++++++++++++++++++++
 readarr/setup.bash      |  7 +++++-
 3 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 readarr/combine.bash

diff --git a/readarr/AutoConfig.bash b/readarr/AutoConfig.bash
index da43ec1..fb439e7 100644
--- a/readarr/AutoConfig.bash
+++ b/readarr/AutoConfig.bash
@@ -103,6 +103,17 @@ else
   updateArr=$(curl -s "$arrUrl/api/v1/notification?" -X POST -H "Content-Type: application/json" -H "X-Api-Key: ${arrApiKey}" --data-raw '{"onGrab":false,"onReleaseImport":true,"onUpgrade":true,"onRename":false,"onAuthorDelete":true,"onBookDelete":true,"onBookFileDelete":false,"onBookFileDeleteForUpgrade":false,"onHealthIssue":false,"onDownloadFailure":false,"onImportFailure":false,"onBookRetag":false,"onApplicationUpdate":false,"supportsOnGrab":true,"supportsOnReleaseImport":true,"supportsOnUpgrade":true,"supportsOnRename":true,"supportsOnAuthorDelete":true,"supportsOnBookDelete":true,"supportsOnBookFileDelete":true,"supportsOnBookFileDeleteForUpgrade":true,"supportsOnHealthIssue":true,"includeHealthWarnings":false,"supportsOnDownloadFailure":false,"supportsOnImportFailure":false,"supportsOnBookRetag":true,"supportsOnApplicationUpdate":true,"name":"PlexNotify.bash","fields":[{"name":"path","value":"/config/extended/PlexNotify.bash"},{"name":"arguments"}],"implementationName":"Custom Script","implementation":"CustomScript","configContract":"CustomScriptSettings","infoLink":"https://wiki.servarr.com/readarr/supported#customscript","message":{"message":"Testing will execute the script with the EventType set to Test, ensure your script handles this correctly","type":"warning"},"tags":[]}')
   log "Complete"
 fi
+if curl -s "$arrUrl/api/v1/notification" -H "X-Api-Key: ${arrApiKey}" | jq -r .[].name | grep "combine.bash" | read; then
+	log "combine.bash already added to $arrAppName custom scripts"
+else
+	log "Adding combine.bash to $arrAppName custom scripts"
+  # Send a command to check file path, to prevent error with adding...
+	updateArr=$(curl -s "$arrUrl/api/v3/filesystem?path=%2Fconfig%2Fextended%2FPlexNotify.bash&allowFoldersWithoutTrailingSlashes=true&includeFiles=true" -H "X-Api-Key: ${arrApiKey}")
+  
+  # Add combine.bash
+  updateArr=$(curl -s "$arrUrl/api/v1/notification?" -X POST -H "Content-Type: application/json" -H "X-Api-Key: ${arrApiKey}" --data-raw '{"onGrab":false,"onReleaseImport":true,"onUpgrade":true,"onRename":true,"onAuthorDelete":false,"onBookDelete":false,"onBookFileDelete":false,"onBookFileDeleteForUpgrade":false,"onHealthIssue":false,"onDownloadFailure":false,"onImportFailure":false,"onBookRetag":false,"onApplicationUpdate":false,"supportsOnGrab":true,"supportsOnReleaseImport":true,"supportsOnUpgrade":true,"supportsOnRename":true,"supportsOnAuthorDelete":true,"supportsOnBookDelete":true,"supportsOnBookFileDelete":true,"supportsOnBookFileDeleteForUpgrade":true,"supportsOnHealthIssue":true,"includeHealthWarnings":false,"supportsOnDownloadFailure":false,"supportsOnImportFailure":false,"supportsOnBookRetag":true,"supportsOnApplicationUpdate":false,"name":"combine.bash","fields":[{"name":"path","value":"/config/extended/combine.bash"},{"name":"arguments"}],"implementationName":"Custom Script","implementation":"CustomScript","configContract":"CustomScriptSettings","infoLink":"https://wiki.servarr.com/readarr/supported#customscript","message":{"message":"Testing will execute the script with the EventType set to Test, ensure your script handles this correctly","type":"warning"},"tags":[]}')
+  log "Complete"
+fi
 
 log "Script sleeping for (infinity)..."
 sleep infinity
diff --git a/readarr/combine.bash b/readarr/combine.bash
new file mode 100644
index 0000000..85e62ac
--- /dev/null
+++ b/readarr/combine.bash
@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+scriptVersion=1.0
+rootFolderPath="$(dirname "$readarr_author_path")"
+scriptName="M4bCombine"
+
+
+log() {
+    m_time=$(date "+%F %T")
+    echo "$m_time :: $scriptName :: $scriptVersion :: $1" >> "/config/logs/$scriptName-$(date +"%Y_%m_%d_%I_%M_%p").txt"
+}
+
+# Combine M4b Files
+combineM4bFiles() {
+    log "Combining M4b files using FFmpeg..."
+
+    # Determine the M4b files path based on the context
+    if [ -z "$readarr_author_path" ]; then
+        # Extended script context
+        m4bFiles="$readarr_artist_path/*.mp3 $readarr_artist_path/*.m4b"
+        outputFolder="$readarr_artist_path/"
+    else
+        # Readarr context
+        m4bFiles="$1/*.mp3 $1/*.m4b"
+        outputFolder="$1/"
+    fi
+
+    # Extract author and book information
+    author=$(basename "$(dirname "$readarr_author_path")")
+    book=$(basename "$readarr_author_path")
+
+    # Create the output file path
+    outputFile="${outputFolder}${author}_${book}_combined.m4b"
+
+    # FFmpeg command to concatenate M4b files
+    ffmpeg -i "concat:$m4bFiles" -vn -b:a 128k -f m4b "$outputFile" 2>&1
+
+    if [ $? -eq 0 ]; then
+        log "M4b files combined successfully. Output: $outputFile"
+    else
+        log "Error combining M4b files with FFmpeg."
+    fi
+}
+
+# Call the function to combine M4b files
+combineM4bFiles "$readarr_artist_path"
+
+exit 0
diff --git a/readarr/setup.bash b/readarr/setup.bash
index 9698498..7d3e2ea 100644
--- a/readarr/setup.bash
+++ b/readarr/setup.bash
@@ -2,7 +2,8 @@
 echo "************ install and update packages ************"
 apk add -U --update --no-cache \
   jq \
-  py3-pip
+  py3-pip \
+  ffmpeg
 echo "************ install python packages ************"
 pip install --upgrade --no-cache-dir -U yq
 
@@ -24,6 +25,10 @@ echo "Download PlexNotify script..."
 curl https://raw.githubusercontent.com/RandomNinjaAtk/arr-scripts/main/readarr/PlexNotify.bash -o /config/extended/PlexNotify.bash 
 echo "Done"
 
+echo "Download combine script..."
+curl https://raw.githubusercontent.com/RandomNinjaAtk/arr-scripts/main/readarr/combine.bash -o /config/extended/combine.bash 
+echo "Done"
+
 echo "Download AutoConfig config..."
 curl https://raw.githubusercontent.com/RandomNinjaAtk/arr-scripts/main/readarr/AutoConfig.json -o /config/extended/AutoConfig.json
 echo "Done"