#!/bin/bash

#                       __                __
#    ____ ___  ______  / /___  ____ _____/ /__  _____
#   / __ `/ / / / __ \/ / __ \/ __ `/ __  / _ \/ ___/
#  / /_/ / /_/ / / / / / /_/ / /_/ / /_/ /  __/ /
#  \__, /\__,_/_/ /_/_/\____/\__,_/\__,_/\___/_/
# /____/
# ---------------------------------------------------
# Author :: Miris /// GitHub :: MirisWisdom/Albumin
# ---------------------------------------------------

# This simple Bash script lets you download the video
# using yt-dlp, and then takes care of extracting its
# audio into a file for each song w/ ffmpeg!

# It does not re-encode or tag any of the audio files
# due to raw preservation being its purpose.

# You should run it line by line rather than blindly!
# Feel free to tweak & suggest improvements!

# ---------------------------------------------------

# We'll be using the ID for both file and directory.
VIDEO_ID='_sI_Ps7JSEk'

# Create and enter the new directory.
mkdir -p "${VIDEO_ID}" && cd "${VIDEO_ID}"

# Download the audio file using yt-dlp.
yt-dlp -x -f bestaudio "${VIDEO_ID}" -o "${VIDEO_ID}.%%(ext)s"

# Figure out the downloaded file name and extension.
SRC_FILE=$(ls "${VIDEO_ID}".*) # ls command should only output the downloaded file name!
FILE_EXT=${SRC_FILE:12}        # file id + dot = 12 characters; extension length varies!

ffmpeg -ss 00:00:00 -to 00:04:30 -i "${SRC_FILE}" -vn -acodec copy "01. All of Me (Gerald Marks/Seymor Simons).${FILE_EXT}"
ffmpeg -ss 00:04:30 -to 00:08:15 -i "${SRC_FILE}" -vn -acodec copy "02. The The A-Train (Billy Streyhorn).${FILE_EXT}"
ffmpeg -ss 00:08:15 -to 00:11:49 -i "${SRC_FILE}" -vn -acodec copy "03. Al the Things You Are (Jerome Kern/Oscar Hammerstein).${FILE_EXT}"
ffmpeg -ss 00:11:49 -to 00:16:52 -i "${SRC_FILE}" -vn -acodec copy "04. Satin Doll (Duke Ellington/Billy Strayhorne).${FILE_EXT}"
ffmpeg -ss 00:16:52 -to 00:21:06 -i "${SRC_FILE}" -vn -acodec copy "05. Fly Me to the Moon (Bart Howard).${FILE_EXT}"
ffmpeg -ss 00:21:06 -to 00:26:20 -i "${SRC_FILE}" -vn -acodec copy "06. Autumn Leaves (Jodeph Kosma/Jacqes Prevert).${FILE_EXT}"
ffmpeg -ss 00:26:20 -to 00:32:05 -i "${SRC_FILE}" -vn -acodec copy "07. My Romance (Richard Rogers/Lorenz Hart).${FILE_EXT}"
ffmpeg -ss 00:32:05 -to 00:35:44 -i "${SRC_FILE}" -vn -acodec copy "08. Take Five (Paul Desmonds).${FILE_EXT}"
ffmpeg -ss 00:35:44 -to 00:39:14 -i "${SRC_FILE}" -vn -acodec copy "09. How High the Moon (William Morgan Lewis/Hancy Hamilton).${FILE_EXT}"
ffmpeg -ss 00:39:14 -to 00:42:58 -i "${SRC_FILE}" -vn -acodec copy "10. The More I See You (Harry Warren/Mack Gordon).${FILE_EXT}"
ffmpeg -ss 00:42:58 -to 00:46:38 -i "${SRC_FILE}" -vn -acodec copy "11. Someday My Prince Will Come (Frank Churchill/Larry Morey).${FILE_EXT}"
ffmpeg -ss 00:46:38 -to 00:49:50 -i "${SRC_FILE}" -vn -acodec copy "12. Don't Mean A Thing (Duke Ellington/Irving Mills).${FILE_EXT}"