class KPM::NexusFacade::MavenCentralApiCalls

def search_for_artifacts(coordinates)
  artifact = parse_coordinates(coordinates)
  params = {
    q: "g:\"#{artifact[:group_id]}\" AND a:\"#{artifact[:artifact_id]}\"",
    rows: 200,
    wt: 'json',
    core: 'gav'
  }
  query = params.map { |k, v| "#{CGI.escape(k.to_s)}=#{CGI.escape(v.to_s)}" }.join('&')
  url = "#{SEARCH_API}?#{query}"
  response = Net::HTTP.get_response(URI(url))
  raise "Search failed: #{response.code}" unless response.code.to_i == 200
  json = JSON.parse(response.body)
  docs = json['response']['docs']
  search_versions = docs.map { |doc| doc['v'] }.uniq
  # Apply when the artifact provided
  if artifact[:artifact_id]
    # Fetch metadata versions (incase the artifact is not indexed)
    metadata_url = build_metadata_url(artifact)
    metadata_versions = []
    begin
      metadata_response = Net::HTTP.get(URI(metadata_url))
      if metadata_response.nil? || metadata_response.strip.empty?
        logger.debug { "Empty metadata response for #{artifact[:artifact_id]}" }
      else
        begin
          metadata_xml = REXML::Document.new(metadata_response)
          metadata_xml.elements.each('//versioning/versions/version') do |version_node|
            metadata_versions << version_node.text
          end
        rescue REXML::ParseException => e
          logger.debug { "Malformed XML in metadata for #{artifact[:artifact_id]}: #{e.message}" }
        end
      end
    rescue StandardError => e
      logger.debug { "Failed to fetch metadata for #{artifact[:artifact_id]}: #{e.message}" }
    end
    # Combine versions
    search_versions = (search_versions + metadata_versions).uniq.sort_by do |v|
      begin
        Gem::Version.new(v)
      rescue ArgumentError
        v
      end
    end.reverse
    artifacts_xml = '<searchNGResponse><data>'
    search_versions.each do |version|
      artifacts_xml += '<artifact>'
      artifacts_xml += "<groupId>#{artifact[:group_id]}</groupId>"
      artifacts_xml += "<artifactId>#{artifact[:artifact_id]}</artifactId>"
      artifacts_xml += "<version>#{version}</version>"
      artifacts_xml += '<repositoryId>central</repositoryId>'
      artifacts_xml += '</artifact>'
    end
  else # Incase no artifact_id is provided for plugin search
    artifacts_xml = '<searchNGResponse><data>'
    docs.each do |doc|
      artifacts_xml += '<artifact>'
      artifacts_xml += "<groupId>#{doc['g']}</groupId>"
      artifacts_xml += "<artifactId>#{doc['a']}</artifactId>"
      artifacts_xml += "<version>#{doc['v']}</version>"
      artifacts_xml += '<repositoryId>central</repositoryId>'
      artifacts_xml += '</artifact>'
    end
  end
  artifacts_xml += '</data></searchNGResponse>'
  artifacts_xml
end