#!/bin/sh
set -e

if [ ! $# = 1 ]; then
    printf >&2 "Usage: %s <path> [ext]\n" "$(basename "$0")"
    exit 0
fi

p="$1"
t="${2:-md}"

if [ ! -d "$p" ]; then
    printf >&2 "error: path %s not found\n" "$p"
    exit 1
fi

find "$p" -type f -name "*.$t" | grep -v 'index.md$' | sort -r | head -n1 | while read -r file; do
    ZS_LAYOUT=embed.html zs build $file
done