// Package route is a higher level client for routed suitable to embed into
// Go programs.
package route

import (
	"net/http"

	"git.xeserv.us/xena/route/proto"
)

// New creates a new instance of the routed client with a given token and service
// URL.
func New(routedURL, token string, underlying *http.Client) *Client {
	c := &Client{
		underlying: underlying,
		authToken:  token,
		serverURL:  routedURL,
	}

	c.Backends = proto.NewBackendsProtobufClient(routedURL, c.hClient())
	c.Routes = proto.NewRoutesProtobufClient(routedURL, c.hClient())
	c.Tokens = proto.NewTokensProtobufClient(routedURL, c.hClient())

	return c
}

// Client is a higher level client for routed
type Client struct {
	Backends proto.Backends
	Routes   proto.Routes
	Tokens   proto.Tokens

	underlying *http.Client
	authToken  string
	serverURL  string
}

// RoundTrip executes a HTTP request, adding authentication headers and then
// executing it using the underlying http client.
func (c *Client) RoundTrip(r *http.Request) (*http.Response, error) {
	ck := &http.Cookie{
		Name:  "routed",
		Value: c.authToken,
	}

	r.AddCookie(ck)

	return c.underlying.Do(r)
}

func (c *Client) hClient() *http.Client {
	return &http.Client{
		Transport: c,
	}
}