#!/usr/bin/env bash

CONFIG_DIR="${1:-/etc/apache2/sites-enabled}"

if [ ! -d "$CONFIG_DIR" ]; then
  echo "Config directory bestaat niet: $CONFIG_DIR"
  exit 1
fi

echo "=== Websites op [[$(hostname)]] ==="
echo "Onderstaande websites zijn in Apache geconfigureerd in: $CONFIG_DIR"
echo "\\\\"

# Print DokuWiki header
echo "^ URL ^ PORT ^ REVERSE_PROXY ^ CONFIG_FILE ^"

{
find -L "$CONFIG_DIR" -type f \( -name "*.conf" -o -name "*.vhost" -o -name "*.cfg" \) | while read -r file; do
  awk -v cfgfile="$file" '
  BEGIN {
    in_vhost=0
    servername=""
    aliases=""
    port=""
    reverse_proxy="nee"
  }

  /<VirtualHost/ {
    in_vhost=1
    reverse_proxy="nee"
    servername=""
    aliases=""
    port=$0
    gsub(/.*:/,"",port)
    gsub(/>.*/,"",port)
    n=split(cfgfile, a, "/")
    f=a[n]
  }

  in_vhost && /ServerName/ {
    servername=$2
  }

  in_vhost && /ServerAlias/ {
    for (i=2;i<=NF;i++) {
      aliases=aliases $i " "
    }
  }

  in_vhost && (/ProxyPass/ || /ProxyPassMatch/ || /\[P\]/) {
    reverse_proxy="ja"
  }

  function add_scheme(host, port) {
    if (port == "443") {
      return "https://" host
    } else if (port == "80") {
      return "http://" host
    } else {
      return "http://" host ":" port
    }
  }

  function print_entry(host) {
    if (host == "") return
    url = add_scheme(host, port)
    fqdn = host
    # TAB als scheiding tussen sort-key en tabelregel
    printf "%s\t| %s | %s | %s | %s |\n", fqdn, url, port, reverse_proxy, f
  }

  /<\/VirtualHost>/ {
    if (servername != "") {
      print_entry(servername)
    }
    if (aliases != "") {
      split(aliases, arr, " ")
      for (a in arr) {
        if (arr[a] != "") {
          print_entry(arr[a])
        }
      }
    }
    in_vhost=0
  }

  ' "$file"

done
} | sort -f -k1,1 | cut -f2-