From 3aad02ea569ead5f87a524a737d7cad052ed65d9 Mon Sep 17 00:00:00 2001
From: Thilo Billerbeck <thilo.billerbeck@officerent.de>
Date: Wed, 3 May 2023 01:25:19 +0200
Subject: [PATCH] moved scripts out of config

---
 home.nix                       |  7 ++----
 programs/zsh.nix               |  2 --
 scripts/ssh-fix-permissions.sh |  4 +++
 scripts/yt-dlp-audio.sh        | 45 ++++++++++++++++++++++++++++++++++
 4 files changed, 51 insertions(+), 7 deletions(-)
 create mode 100644 scripts/ssh-fix-permissions.sh
 create mode 100644 scripts/yt-dlp-audio.sh

diff --git a/home.nix b/home.nix
index 72c1b3b..037b5dd 100644
--- a/home.nix
+++ b/home.nix
@@ -59,11 +59,8 @@ in {
       }))
       (nixGLWrap
         (pkgs.google-chrome.override { commandLineArgs = chromeArgs; }))
-      (pkgs.writeShellScriptBin "ssh-fix-permissions" ''
-        chmod 700 ~/.ssh
-        chmod 600 ~/.ssh/*
-        chmod 644 -f ~/.ssh/*.pub ~/.ssh/authorized_keys ~/.ssh/known_hosts
-      '')
+      (pkgs.writeShellScriptBin "ssh-fix-permissions" (builtins.readFile ./scripts/ssh-fix-permissions.sh))
+      (pkgs.writeShellScriptBin "yt-dlp-audio" (builtins.readFile ./scripts/yt-dlp-audio.sh))
     ];
     file = {
       ".config/nano/nanorc".text = ''
diff --git a/programs/zsh.nix b/programs/zsh.nix
index d91f076..1e86b7a 100644
--- a/programs/zsh.nix
+++ b/programs/zsh.nix
@@ -1,10 +1,8 @@
 { config, pkgs, lib, ... }:
 let
   omz-plugins = [
-    "asdf"
     "git"
     "archlinux"
-    "brew"
     "composer"
     "colored-man-pages"
     "extract"
diff --git a/scripts/ssh-fix-permissions.sh b/scripts/ssh-fix-permissions.sh
new file mode 100644
index 0000000..9280e9b
--- /dev/null
+++ b/scripts/ssh-fix-permissions.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+chmod 700 ~/.ssh
+chmod 600 ~/.ssh/*
+chmod 644 -f ~/.ssh/*.pub ~/.ssh/authorized_keys ~/.ssh/known_hosts
\ No newline at end of file
diff --git a/scripts/yt-dlp-audio.sh b/scripts/yt-dlp-audio.sh
new file mode 100644
index 0000000..4014f8f
--- /dev/null
+++ b/scripts/yt-dlp-audio.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+### Script for downloading albums from Youtube Music ##########
+### Usage: ./yt-music-album-download.sh <youtube music url> ###
+
+# - Converts to MP3 from the best quality audio feed
+# - Adds track number, album, artist, title, and release year into id3 tags
+# - Adds album art embedded thumbnails
+
+echo "Retrieving album information..."
+# Downloading the json data of the first track only
+jsondata=`yt-dlp -j --playlist-items 1 $1`
+
+# Grabbing the "release_year" and "release_date" and comparing which is lowest integer.
+# Sometimes Youtube Music doesn't even populate the "release_date" field, but when it does we need to compare it to "release_year"
+# If both the "release_date" and "release_year" exist, check which one is the lower integer, and that should be the actual album release year.
+jq_release_year_1=`echo $jsondata | jq -r '.release_year'`
+jq_release_date=`echo $jsondata | jq -r '.release_date'`
+if [ $jq_release_date != 'null' ]; then
+        jq_release_year_2=${jq_release_date::-4};
+        year=$((jq_release_year_1<jq_release_year_2?jq_release_year_1:jq_release_year_2));
+else
+        year=$jq_release_year_1;
+fi
+
+# Grabbing the artist then removing any superfluous information after the first comma. Some artists put every band memember into the artist field.
+jq_artist=`echo $jsondata | jq -r '.artist'`
+artist=${jq_artist%%,*}
+
+echo "Album information retrieved..."
+# Pass to yt-dlp and begin download all the music!
+yt-dlp  --ignore-errors \
+        --format "(bestaudio[acodec^=opus]/bestaudio)/best" \
+        --extract-audio \
+        --audio-format mp3 \
+        --audio-quality 0 \
+        --parse-metadata "playlist_index:%(track_number)s" \
+        --parse-metadata ":(?P<webpage_url>)" \
+        --parse-metadata ":(?P<synopsis>)" \
+        --parse-metadata ":(?P<description>)" \
+        --add-metadata \
+        --postprocessor-args "-metadata date='${year}' -metadata artist=\"${artist}\"" \
+        --embed-thumbnail \
+        --ppa "EmbedThumbnail+ffmpeg_o:-c:v mjpeg -vf crop=\"'if(gt(ih,iw),iw,ih)':'if(gt(iw,ih),ih,iw)'\"" \
+        -o "%(playlist_index)s. %(title)s.%(ext)s" "$1"