module BoardGameGem

# File lib/boardgamegem.rb, line 27
def BoardGameGem.get_collection(username, options = {})
        options[:username] = username
        collection_xml = BoardGameGem.request_xml("collection", options)
        if collection_xml.css("error").length > 0
                return nil
        else
                return BGGCollection.new(collection_xml)
        end
end

# File lib/boardgamegem.rb, line 15
def BoardGameGem.get_family(id, options = {})
        options[:id] = id
        family = BGGFamily.new(BoardGameGem.request_xml("family", options))
        return family.id == 0 ? nil : family
end

# File lib/boardgamegem.rb, line 8
def BoardGameGem.get_item(id, statistics = false, options = {})
        options[:id] = id
        options[:stats] = statistics ? 1 : 0
        item = BGGItem.new(BoardGameGem.request_xml("thing", options))
        return item.id == 0 ? nil : item
end

# File lib/boardgamegem.rb, line 21
def BoardGameGem.get_user(username, options = {})
        options[:name] = username
        user = BGGUser.new(BoardGameGem.request_xml("user", options))
        return user.id == 0 ? nil : user
end

# File lib/boardgamegem.rb, line 37
def BoardGameGem.search(query, options = {})
        options[:query] = query
        xml = BoardGameGem.request_xml("search", options)
        return {
                :total => xml.at_css("items")["total"].to_i,
                :items => xml.css("item").map { |x| BGGSearchResult.new(x) }
        }
end

# File lib/boardgamegem.rb, line 64
def BoardGameGem.hash_to_uri(hash)
        return hash.to_a.map { |x| "#{x[0]}=#{x[1]}" }.join("&")
end

# File lib/boardgamegem.rb, line 48
def BoardGameGem.request_xml(method, hash, attempt = 0)
        params = BoardGameGem.hash_to_uri(hash)
        open("#{API_ROOT}/#{method}?#{params}") do |file|
                if file.status == 202
                        if attempt < MAX_ATTEMPTS
                                sleep 0.05
                                BoardGameGem.request_xml(method, hash, attempt + 1)
                        else
                                return nil
                        end
                else
                        Nokogiri::XML(file.read)
                end
        end
end