#!/bin/bash

# Check if the correct number of arguments is provided
if [ $# -ne 2 ]; then
  echo "Usage: $0 <extension_name> <extension_version>"
  echo "Example: $0 Mpdf REL1_41"
  exit 1
fi

# Extension name and version from arguments
extension_name="$1"
extension_version="$2"

# URL to fetch
url="https://www.mediawiki.org/wiki/Special:ExtensionDistributor?extdistname=${extension_name}&extdistversion=${extension_version}"

# Fetch the HTML content using curl
html=$(curl -s "$url")

# Extract the download link using grep and sed
download_link=$(echo "$html" | grep -oP '<a rel="nofollow" class="external free" href="\K[^"]+' | sed 's/&amp;/\&/g')

# Check if the download link is found
if [ -z "$download_link" ]; then
  echo "Download link not found for extension '$extension_name' version '$extension_version'."
  exit 1
fi

# Print the extracted download link
echo -n $download_link