package main
 
 import (

 	"fmt"

 	"net/http"

 	"net/http/httptest"

 	"net/http/httputil"

 	"os/exec"

 	"strconv"
 	"strings"

 	"time"

 	"github.com/docker/docker/api"

 	"github.com/docker/docker/pkg/integration/checker"

 	"github.com/go-check/check"
 )
 
 func (s *DockerSuite) TestApiOptionsRoute(c *check.C) {
 	status, _, err := sockRequest("OPTIONS", "/", nil)

 	c.Assert(err, checker.IsNil)
 	c.Assert(status, checker.Equals, http.StatusOK)

 }
 
 func (s *DockerSuite) TestApiGetEnabledCors(c *check.C) {
 	res, body, err := sockRequestRaw("GET", "/version", nil, "")

 	c.Assert(err, checker.IsNil)
 	c.Assert(res.StatusCode, checker.Equals, http.StatusOK)

 	body.Close()

 	// TODO: @runcom incomplete tests, why old integration tests had this headers
 	// and here none of the headers below are in the response?
 	//c.Log(res.Header)
 	//c.Assert(res.Header.Get("Access-Control-Allow-Origin"), check.Equals, "*")
 	//c.Assert(res.Header.Get("Access-Control-Allow-Headers"), check.Equals, "Origin, X-Requested-With, Content-Type, Accept, X-Registry-Auth")
 }

 func (s *DockerSuite) TestApiVersionStatusCode(c *check.C) {

 	conn, err := sockConn(time.Duration(10 * time.Second))

 	c.Assert(err, checker.IsNil)

 
 	client := httputil.NewClientConn(conn, nil)
 	defer client.Close()
 
 	req, err := http.NewRequest("GET", "/v999.0/version", nil)

 	c.Assert(err, checker.IsNil)

 	req.Header.Set("User-Agent", "Docker-Client/999.0 (os)")

 
 	res, err := client.Do(req)

 	c.Assert(res.StatusCode, checker.Equals, http.StatusBadRequest)

 }

 
 func (s *DockerSuite) TestApiClientVersionNewerThanServer(c *check.C) {

 	v := strings.Split(api.DefaultVersion.String(), ".")

 	vMinInt, err := strconv.Atoi(v[1])

 	c.Assert(err, checker.IsNil)

 	vMinInt++
 	v[1] = strconv.Itoa(vMinInt)
 	version := strings.Join(v, ".")
 
 	status, body, err := sockRequest("GET", "/v"+version+"/version", nil)

 	c.Assert(err, checker.IsNil)
 	c.Assert(status, checker.Equals, http.StatusBadRequest)

 	expected := fmt.Sprintf("client is newer than server (client API version: %s, server API version: %s)", version, api.DefaultVersion)
 	c.Assert(strings.TrimSpace(string(body)), checker.Equals, expected)

 }
 
 func (s *DockerSuite) TestApiClientVersionOldNotSupported(c *check.C) {

 	v := strings.Split(api.MinVersion.String(), ".")

 	vMinInt, err := strconv.Atoi(v[1])

 	c.Assert(err, checker.IsNil)

 	vMinInt--
 	v[1] = strconv.Itoa(vMinInt)
 	version := strings.Join(v, ".")
 
 	status, body, err := sockRequest("GET", "/v"+version+"/version", nil)

 	c.Assert(err, checker.IsNil)
 	c.Assert(status, checker.Equals, http.StatusBadRequest)

 	expected := fmt.Sprintf("client version %s is too old. Minimum supported API version is %s, please upgrade your client to a newer version", version, api.MinVersion)
 	c.Assert(strings.TrimSpace(string(body)), checker.Equals, expected)

 }

 
 func (s *DockerSuite) TestApiDockerApiVersion(c *check.C) {
 	var svrVersion string
 
 	server := httptest.NewServer(http.HandlerFunc(
 		func(w http.ResponseWriter, r *http.Request) {
 			url := r.URL.Path
 			svrVersion = url
 		}))
 	defer server.Close()
 
 	// Test using the env var first
 	cmd := exec.Command(dockerBinary, "-H="+server.URL[7:], "version")

 	cmd.Env = appendBaseEnv(false, "DOCKER_API_VERSION=xxx")

 	out, _, _ := runCommandWithOutput(cmd)
 
 	c.Assert(svrVersion, check.Equals, "/vxxx/version")
 
 	if !strings.Contains(out, "API version:  xxx") {
 		c.Fatalf("Out didn't have 'xxx' for the API version, had:\n%s", out)
 	}
 }