#!/usr/bin/env zsh
# Create a playlist in the current folder, of the media files in the folder and
# all subfolders.

setopt LOCAL_OPTIONS ERR_RETURN NO_UNSET PIPE_FAIL

zmodload zsh/zutil
local -a o_help=()
zparseopts -D -K -- h=o_help
if [[ ${#o_help} -ne 0 ]]; then
    print -l "usage: ${0} [-h] [NAME]" \
          "Without NAME, the current directory is used."
    return 0
fi
if [[ -v 1 ]]; then
    local name=${1}
else
    local name=${PWD##*/}
fi

find . -type f -name '*.mkv' -or -name '*.mp4' -or -name '*.avi' \
     -or -name '*.flac' -or -name '*.ogg' -or -name '*.opus' -or -name '*.mp3' \
     -or -name '*.m4a' -or -name '*.wma' -or -name '*.aac' \
    | grep -Pv '[^[](ED|OP|PV) ?\d' | sort > ${name}.m3u8