#!/usr/bin/env zsh

set -e

function headline {
    depth="${1}"
    text="${2}"

    printf "%${depth}s %s" "" | tr ' ' '*'
    echo " ${text}"
}

function scan_and_populate {
    depth="${1}"
    dir="${2}"

    headline ${depth} "${dir}"

    let "depth += 1"

    for f in $(ls -d "${dir}"/* 2>/dev/null); do
        if [ -d "${f}" ]; then
            scan_and_populate ${depth} "${f}"
        else
            headline ${depth} "[[file://${f}][${${f##*/}%.*}]]"
        fi
    done

    let "depth -= 1"
}

function main {
    scan_dir="${1:-$(pwd)}"
    depth=0

    scan_and_populate ${depth} "${scan_dir}"
}

main "${@}"