mpv-quit

#!/usr/bin/env bash
# interactively pick one of the active mpv instances,
# and send it a 'quit' command

declare -a FILTER_OPTS

usage() {
    cat <<-EOF
usage: ${0##*/} [options]

options:
    -a, --ampv           Quit the ampv socket.
    -f, --fzf            Use fzf for selection instead of dmenu.
    -h, --help           Show this help message and exit.
    -l, --latest         Quit the most recently playing mpv instance.
    -m, --music          Quit the music socket.
    -q, --quiet          Suppress error messages.
    -s, --socket SOCKET  Quit the specified socket.
    -u, --umpv           Quit the umpv socket.

If no option is provided, interactively select an mpv instance to quit.
EOF
    exit 0
}

abort() {
    echo "$1" >&2
    exit 1
}

get_opts() {
    # If no arguments provided, we'll pick interactively
    [[ $# -eq 0 ]] && return 0

    while [[ "$#" -ne 0 ]]; do
        SHIFT_COUNT=1
        case "$1" in
            -a | --ampv)
                FILTER_OPTS+=("--ampv")
                ;;
            -f | --fzf)
                FZF="--fzf"
                ;;
            -h | --help)
                usage
                ;;
            -l | --latest)
                GET_LATEST=1
                ;;
            -m | --music)
                FILTER_OPTS+=("--music")
                ;;
            -q | --quiet)
                QUIET="--quiet"
                ;;
            -s | --socket)
                USE_SOCKET="${2:?--socket requires a socket argument}"
                SHIFT_COUNT=2
                ;;
            -u | --umpv)
                FILTER_OPTS+=("--umpv")
                ;;
            *)
                abort "Unknown option: $1"
                ;;
        esac
        shift "$SHIFT_COUNT"
    done
}

set_socket() {
    if [[ "$GET_LATEST" -eq 1 ]]; then
        # Get the most recently playing instance
        local playing
        readarray -t playing < <(mpv-currently-playing --unique --socket)
        [[ "${#playing[@]}" -eq 0 ]] && {
            [[ -z "$QUIET" ]] && notify-send "mpv-quit" "No active instances of mpv..."
            return 1
        }
        USE_SOCKET="${playing[-1]}"
    elif [[ "${#FILTER_OPTS[@]}" -gt 0 ]]; then
        # Get a single socket using filter options
        local sockets
        readarray -t sockets < <(mpv-active-sockets "${FILTER_OPTS[@]}")
        [[ "${#sockets[@]}" -eq 0 ]] && {
            [[ -z "$QUIET" ]] && notify-send "mpv-quit" "No matching mpv instances found..."
            return 1
        }
        USE_SOCKET="${sockets[0]}"
    else
        # Pick interactively
        USE_SOCKET="$(mpv-pick $FZF $QUIET)"
        [[ -z "$USE_SOCKET" ]] && return 1
    fi

    return 0
}

mpv_quit() {
    local socket="$1"
    mpv-communicate $QUIET "$socket" 'quit'
    mpv-track "$socket"
}

main() {
    get_opts "$@"

    # If socket is not already set by options, determine it
    if [[ -z "$USE_SOCKET" ]]; then
        set_socket || exit 1
    fi

    mpv_quit "$USE_SOCKET"
}

main "$@"