#!/usr/bin/env zsh
#     Filename: dumpceararural
#          vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab ft=sh:
#  Last Change: Sat, 15 Oct 2022 12:16:04
#        Autor: Sérgio Araújo
#         site: https://dev/to/voyeg3r
#      Licence: GPL (see http://www.gnu.org/licenses/gpl.txt)
#    Reference: https://github.com/LukeSmithxyz/voidrice/blob/master/.local/bin/dmenurecord

# https://meleu.sh/trap-err/
# https://stackoverflow.com/questions/8363519/
# https://askubuntu.com/questions/1033866/
# set -euo pipefail
# trap 'echo "${BASH_SOURCE}:${LINENO}:${FUNCNAME:-}"' ERR

# Dependências: dunst, mpv, wget
#
# Usage:
# $0:        Ask for recording via dmenu
# $0 start:  Record the stream
# $0 stop:   Stop recording

trap 'killrecording' INT

station="ceararural"
url="http://stm3.xcast.com.br:8560/stream"
filename="${station}-$(date +%d-%b-%Y-%H-%M).mp3"

killrecording () {
    dunstify "Parando gravação de áudio"
     if  [ -f "/tmp/dump_pid" ]; then
        pkill -P $(< "/tmp/dump_pid")
        \rm -f "/tmp/dump_pid"
     else
         dunstify "Não há PIDs listados para matar"
         exit 1
     fi
    exit 0
}

askrecording () {
    choice=$(printf "yes\nno" | dmenu -i -p "Record Ceará Rural?")
    case "$choice" in
        yes) record;;
        no)  exit 0;;
         *)  exit 0;;
    esac
}

asktoend() { \
	response=$(printf "No\\nYes" | dmenu -i -p "Recording still active. End recording?") &&
	[ "$response" = "Yes" ] &&  killrecording
    exit 0
	}

record () {
    (
    recdir="$XDG_MUSIC_DIR/ceararural"
    [ ! -d "$recdir" ] && mkdir "$recdir"
    cd "$recdir"
    dunstify "Iniciando gravação em $recdir"
    ( wget -O- "$url" | tee -ai "$filename" | mpv - ) & echo $! > /tmp/dump_pid
    )
}

case "$1" in
    start) record;;
    stop)  killrecording;;
    *) ([ -f "/tmp/dump_pid" ] && asktoend && exit) || askrecording;;
esac