s_wm_player

#!/usr/bin/env bash

# Bin is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Bin is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Bin. If not, see <https://www.gnu.org/licenses/>.

# Debug Options
set -euo pipefail

STEP=3

_ncmpcpp() {
    [[ ! $(pgrep -x ncmpcpp) ]] && return
    [[ ! $(command -v mpc)  ]] && echo "mpc is not installed to manage player volume" && exit 1

    local action

    case "$1" in
        down)
            action="volume -$STEP"
            ;;
        up)
            action="volume +$STEP"
            ;;
        toggle)
            action="toggle"
            ;;
        previous)
            action="previous"
            ;;
        next)
            action="next"
            ;;
    esac

    mpc $action
}

print_info() {
            echo "Usage: wm_player [ -d | --down ] [ -u | --up ] [ -p | --previous ] [ -n | --next ] [ -t | --toggle ] [ -h | --help ]"
}

# PARSE CLI OPTIONS
OPTIONS=$(getopt --name play --options udthnp --longoptions up,down,toggle,next,previous,help -- "$@")
eval set -- "$OPTIONS"
unset OPTIONS
while true; do
    case "$1" in
        -d | --down)
            _ncmpcpp down
            break;
            ;;
        -u | --up)
            _ncmpcpp up
            break
            ;;
        -t | --toggle)
            _ncmpcpp toggle
            break
            ;;
        -p | --previous)
            _ncmpcpp previous
            break
            ;;
        -n | --next)
            _ncmpcpp next
            break
            ;;
        -h | --help)
            print_info
            break
            ;;
        *)
            print_info
            break
            ;;
    esac
done