#!/usr/bin/env bash

if [[ $# -ne 4 ]]; then
  echo "USAGE: ./man-to-html INPUT OUTPUT COMMAND TITLE [ VERSION PAGE DATE ]"
  exit 1
fi

set -euo pipefail

version=${5:-"3.2.4"}
page=${6:-"7"}
date=${7:-"$(date +"%Y-%m-%d")"}

pandoc -f man -t html \
  --template man-template \
  -M title="$4" -M date="$date" \
  -M version="$version" -M cmd="${3^^}($page)" \
  "$1" > "$2"