module FormTagHelper

    def amp_form(url = "", method = "post", target = "_top", submit = nil, submit_success = nil, submit_error = nil, options = {}, &block)
        options = options.symbolize_keys

        options[:method] = method
        options[:target] = target

        if method = "get"
            if options[:ajax]
                options[:"action-xhr"] = url
            else
                options[:action] = url
            end
        else
            options[:"action-xhr"] = url
        end

        options.delete(:ajax)

        options[:on] = "#{options[:on] + ";" if options[:on]}#{submit + ";" if submit}#{submit_success + ";" if submit_success}#{submit_error + ";" if submit_error}" if submit || submit_success || submit_error

        if block_given?
            content_tag("form", capture(&block), options)
        else
            content_tag("form", options)
        end
    end
    <% unless options[:split] %>
    def form_tag(url = "", method = "post", target = "_top", submit = nil, submit_success = nil, submit_error = nil, options = {}, &block)
        if block_given?
            amp_form(url, method, target, submit, submit_success, submit_error, options, capture(&block))
        else
            amp_form(url, method, target, submit, submit_success, submit_error, options)
        end
    end
    <% end %>

    def amp_input(type = "text", name = nil, value = nil, onchange = nil, options = {})
        options = options.symbolize_keys

        options[:type] = type
        options[:name] = name
        options[:value] = value

        options[:on] = "#{options[:on] + ";" if options[:on]}#{onchange + ";" if onchange}"

        tag("input", options)
    end
    <% unless options[:split] %>
    def input_tag(type = "text", name = nil, value = nil, onchange = nil, options = {})
        amp_input(type, name, value, onchange, options)
    end
    <% end %>

    def amp_selector(name = nil, onchange = nil, options = {}, &block)
        options = options.symbolize_keys

        options[:layout] = "container"
        options[:name] = name

        options[:on] = "#{options[:on] + ";" if options[:on]}#{onchange + ";" if onchange}"

        content_tag("amp-selector", capture(&block), options)
    end


    def amp_form_response(type = "success", &block)
        raise "`amp_form_response` takes only the types `success` and `error`" unless type = "success" || type = "error"

        type = "submit-" + type

        options = {}
        options[type] = ""

        content_tag("div", amp_mustache(capture(&block)), options)
    end

end