#!/bin/bash

#                       __                __
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#   / __ `/ / / / __ \/ / __ \/ __ `/ __  / _ \/ ___/
#  / /_/ / /_/ / / / / / /_/ / /_/ / /_/ /  __/ /
#  \__, /\__,_/_/ /_/_/\____/\__,_/\__,_/\___/_/
# /____/
# ---------------------------------------------------
# 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='c1uKkE7tVwk'

# 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 00:03:39 -i "${SRC_FILE}" -vn -acodec copy "01. Lửng Lơ - MASEW x BRAY ft. RedT x Ý Tiên.${FILE_EXT}"
ffmpeg -ss 00:03:39 -to 00:06:39 -i "${SRC_FILE}" -vn -acodec copy "02. Vương Vấn - TVk, Hana Cẩm Tiên.${FILE_EXT}"
ffmpeg -ss 00:06:39 -to 00:10:47 -i "${SRC_FILE}" -vn -acodec copy "03. Ngôi Sao Cô Đơn - J97 (Jack).${FILE_EXT}"
ffmpeg -ss 00:10:47 -to 00:14:33 -i "${SRC_FILE}" -vn -acodec copy "04. Cuối Cùng Thì - J97 (Jack).${FILE_EXT}"
ffmpeg -ss 00:14:33 -to 00:18:56 -i "${SRC_FILE}" -vn -acodec copy "05. Bên Trên Tầng Lầu - Tăng Duy Tân.${FILE_EXT}"
ffmpeg -ss 00:18:56 -to 00:22:09 -i "${SRC_FILE}" -vn -acodec copy "06. Rằng Em Mãi Ở Bên - Bích Phương.${FILE_EXT}"
ffmpeg -ss 00:22:09 -to 00:24:42 -i "${SRC_FILE}" -vn -acodec copy "07. See Tình - Hoàng Thùy Linh.${FILE_EXT}"
ffmpeg -ss 00:24:42 -to 00:28:24 -i "${SRC_FILE}" -vn -acodec copy "08. Đắm - Xesi, Ricky Star.${FILE_EXT}"
ffmpeg -ss 00:28:24 -to 00:31:49 -i "${SRC_FILE}" -vn -acodec copy "09. Thương Một Người Mất Cả Tương Lai.${FILE_EXT}"
ffmpeg -ss 00:31:49 -to 00:34:35 -i "${SRC_FILE}" -vn -acodec copy "10. Hạnh Phúc Đó Em Không Có - Lương Minh Trang.${FILE_EXT}"
ffmpeg -ss 00:34:35 -to 00:37:52 -i "${SRC_FILE}" -vn -acodec copy "11. Dancin Remix.${FILE_EXT}"
ffmpeg -ss 00:37:52 -to 00:40:51 -i "${SRC_FILE}" -vn -acodec copy "12. Face - Nuest.${FILE_EXT}"
ffmpeg -ss 00:40:51 -to 00:45:52 -i "${SRC_FILE}" -vn -acodec copy "13. Tay Trái Chỉ Trăng - Tát Đỉnh Đỉnh.${FILE_EXT}"
ffmpeg -ss 00:45:52 -to 00:49:03 -i "${SRC_FILE}" -vn -acodec copy "14. Mang Chủng - Âm Huyết Thi Thính.${FILE_EXT}"
ffmpeg -ss 00:49:03 -to 00:52:03 -i "${SRC_FILE}" -vn -acodec copy "15. Anh Yêu Vội Thế - Lala Trần.${FILE_EXT}"
ffmpeg -ss 00:52:03 -to 00:55:13 -i "${SRC_FILE}" -vn -acodec copy "16. Beautiful Monster - SooBin x Binz.${FILE_EXT}"
ffmpeg -ss 00:55:13 -to 00:58:15 -i "${SRC_FILE}" -vn -acodec copy "17. Kỳ Vọng Sai Lầm.${FILE_EXT}"
ffmpeg -ss 00:58:15 -to 01:01:15 -i "${SRC_FILE}" -vn -acodec copy "18. Cứu Vãn Kịp Không - Vương Anh Tú.${FILE_EXT}"
ffmpeg -ss 01:01:15 -to 01:04:03 -i "${SRC_FILE}" -vn -acodec copy "19. Phải Chia Tay Thôi - Hương Ly.${FILE_EXT}"
ffmpeg -ss 01:04:03 -to 01:08:12 -i "${SRC_FILE}" -vn -acodec copy "20. Lonely x Hey Hey Hey.${FILE_EXT}"
ffmpeg -ss 01:08:12 -to 01:11:53 -i "${SRC_FILE}" -vn -acodec copy "21. Phong Dạ Hành - Tưởng Tuyết Nhi.${FILE_EXT}"
ffmpeg -ss 01:11:53 -to 01:17:40 -i "${SRC_FILE}" -vn -acodec copy "22. Fiction - BEATS.${FILE_EXT}"