#! /bin/zsh

play-music-message () {
    clean
    echo

    local string="[  (omx)  $1  ]"
    local len=${#string}
    local pad_side=$(( ($COLUMNS - $len)/2 ))

    local pad_right=$(( $len + $pad_side ))
    local pad_string_right="${(r:$pad_right:: :)string}"

    local pad_left=$(( $pad_side + $pad_right ))
    local pad_string_left="${(l:$pad_left:: :)pad_string_right}"

    echo $pad_string_left
}

check-for-tty5 () {
    if [[ $TTY = /dev/tty5 ]]; then
        return 0
    else
        echo "Error: Not in tty5." >&2
        return 1
    fi
}

play-music () {
    # music only in tty5
    check-for-tty5
    [[ $? != 0 ]] && return 1

    # files to play
    local -a mn
    mm=($@)

    # do it
    clear
    play-music-message $mm
    omx-play-whatever $OMX_MUS_MOD $mm
}
alias pm=play-music
alias plm=play-music

play-music-loop () {
    check-for-tty5
    [[ $? != 0 ]] && return 1

    local -a files
    files=($@)

    local sleep_time=1
    local done_sleep_time=$(( $sleep_time * ${#files} ))

    while (true); do
        for f in $files; do
            play-music-message "$f  <loop list>"
            omx-play-whatever $OMX_MUS_MOD $f
            sleep $sleep_time
        done
        sleep $done_sleep_time
    done
}
alias pml=play-music-loop
alias plml=play-music-loop