#!/usr/bin/env dash

# shellcheck source=/dev/null
SHELL_LIBRARY_VERSION="2.1.1" . %SHELL_LIBRARY_PATH

# This path must not contain spaces
DOWN_DIR="/home/soispha/media/music/down/spotify"

download_url="$1"

already_downloaded_files="$(mktmp)"
fd . "$DOWN_DIR" --exclude spotdl.log --exclude spotdl-errors.log >"$already_downloaded_files"

config="$(mktmp)"
cat <<EOF | clean >"$config"
# Main options
--audio slider-kz bandcamp youtube-music piped youtube soundcloud
--lyrics genius musixmatch azlyrics synced

# FFmpeg options
--ffmpeg ffmpeg
--threads 16
--bitrate 256k

# Spotify options
--cache-path /home/soispha/.cache/spotdl/.spotipy

# Output options
--preload
--format opus
--output {artists}_-_{title}
--print-errors
--save-errors $DOWN_DIR/spotdl-errors.log
# TODO: Reactive whence spotdl support for these has improved <2023-12-19>
# --generate-lrc
--overwrite skip

# Misc options
--log-level INFO
EOF

if [ -z "$NO_CHECK" ] && [ "$(wc -l <"$already_downloaded_files")" -ne 0 ]; then
    die "something is already downloaded"
fi

rm "$DOWN_DIR/spotdl.log"
cd "$DOWN_DIR" || die "BUG: no $DOWN_DIR"
touch "$DOWN_DIR/spotdl-errors.log"

# The sub shell needs to be unquoted, as the arguments may not be treated as one.
# shellcheck disable=2046
unbuffer spotdl $(cat "$config") download "$download_url" | tee "$DOWN_DIR/spotdl.log"

[ -d ~/.spotdl ] && rm -r ~/.spotdl
# vim: ft=sh