// Watch returns a watch.Interface that watches the requested pods.
func (c *pods) Watch(label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
	return c.r.Get().
		Prefix("watch").
		Namespace(c.ns).
		Resource("pods").
		Param("resourceVersion", resourceVersion).
		LabelsSelectorParam(api.LabelSelectorQueryParam(c.r.APIVersion()), label).
		FieldsSelectorParam(api.LabelSelectorQueryParam(c.r.APIVersion()), field).
		Watch()
}

func TestSelector(t *testing.T) {
	pods, svc := testData()
	labelKey := api.LabelSelectorQueryParam(testapi.Version())
	b := NewBuilder(latest.RESTMapper, api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db":     runtime.EncodeOrDie(latest.Codec, pods),
		"/namespaces/test/services?" + labelKey + "=a%3Db": runtime.EncodeOrDie(latest.Codec, svc),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		Flatten()

	test := &testVisitor{}
	singular := false

	if b.Do().Err() == nil {
		t.Errorf("unexpected non-error")
	}

	b.ResourceTypeOrNameArgs(true, "pods,service")

	err := b.Do().IntoSingular(&singular).Visit(test.Handle)
	if err != nil || singular || len(test.Infos) != 3 {
		t.Fatalf("unexpected response: %v %t %#v", err, singular, test.Infos)
	}
	if !api.Semantic.DeepDerivative([]runtime.Object{&pods.Items[0], &pods.Items[1], &svc.Items[0]}, test.Objects()) {
		t.Errorf("unexpected visited objects: %#v", test.Objects())
	}

	if _, err := b.Do().ResourceMapping(); err == nil {
		t.Errorf("unexpected non-error")
	}
}

func TestListPodsLabels(t *testing.T) {
	ns := api.NamespaceDefault
	labelSelectorQueryParamName := api.LabelSelectorQueryParam(testapi.Version())
	c := &testClient{
		Request: testRequest{
			Method: "GET",
			Path:   testapi.ResourcePath("pods", ns, ""),
			Query:  buildQueryValues(url.Values{labelSelectorQueryParamName: []string{"foo=bar,name=baz"}})},
		Response: Response{
			StatusCode: 200,
			Body: &api.PodList{
				Items: []api.Pod{
					{
						Status: api.PodStatus{
							Phase: api.PodRunning,
						},
						ObjectMeta: api.ObjectMeta{
							Labels: map[string]string{
								"foo":  "bar",
								"name": "baz",
							},
						},
					},
				},
			},
		},
	}
	c.Setup()
	c.QueryValidator[labelSelectorQueryParamName] = validateLabels
	selector := labels.Set{"foo": "bar", "name": "baz"}.AsSelector()
	receivedPodList, err := c.Pods(ns).List(selector, fields.Everything())
	c.Validate(t, receivedPodList, err)
}

func TestListObjectWithDifferentVersions(t *testing.T) {
	pods, svc := testData()
	labelKey := api.LabelSelectorQueryParam(testapi.Version())
	obj, err := NewBuilder(latest.RESTMapper, api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db":     runtime.EncodeOrDie(latest.Codec, pods),
		"/namespaces/test/services?" + labelKey + "=a%3Db": runtime.EncodeOrDie(latest.Codec, svc),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		ResourceTypeOrNameArgs(true, "pods,services").
		Flatten().
		Do().Object()

	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	list, ok := obj.(*api.List)
	if !ok {
		t.Fatalf("unexpected object: %#v", obj)
	}
	// resource version differs between type lists, so it's not possible to get a single version.
	if list.ResourceVersion != "" || len(list.Items) != 3 {
		t.Errorf("unexpected list: %#v", list)
	}
}

func TestListMinionsLabels(t *testing.T) {
	ns := api.NamespaceNone
	labelSelectorQueryParamName := api.LabelSelectorQueryParam(testapi.Version())
	c := &testClient{
		Request: testRequest{
			Method: "GET",
			Path:   testapi.ResourcePath(getNodesResourceName(), "", ""),
			Query:  buildQueryValues(ns, url.Values{labelSelectorQueryParamName: []string{"foo=bar,name=baz"}})},
		Response: Response{
			StatusCode: 200,
			Body: &api.NodeList{
				Items: []api.Node{
					{
						ObjectMeta: api.ObjectMeta{
							Labels: map[string]string{
								"foo":  "bar",
								"name": "baz",
							},
						},
					},
				},
			},
		},
	}
	c.Setup()
	c.QueryValidator[labelSelectorQueryParamName] = validateLabels
	selector := labels.Set{"foo": "bar", "name": "baz"}.AsSelector()
	receivedNodeList, err := c.Nodes().List(selector, fields.Everything())
	c.Validate(t, receivedNodeList, err)
}

func TestDoRequestNewWayObj(t *testing.T) {
	reqObj := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}
	reqBodyExpected, _ := v1beta2.Codec.Encode(reqObj)
	expectedObj := &api.Service{Spec: api.ServiceSpec{Port: 12345}}
	expectedBody, _ := v1beta2.Codec.Encode(expectedObj)
	fakeHandler := util.FakeHandler{
		StatusCode:   200,
		ResponseBody: string(expectedBody),
		T:            t,
	}
	testServer := httptest.NewServer(&fakeHandler)
	c := NewOrDie(&Config{Host: testServer.URL, Version: "v1beta2", Username: "user", Password: "pass"})
	obj, err := c.Verb("POST").
		Suffix("baz").
		Name("bar").
		Resource("foo").
		LabelsSelectorParam(api.LabelSelectorQueryParam(c.APIVersion()), labels.Set{"name": "foo"}.AsSelector()).
		Timeout(time.Second).
		Body(reqObj).
		Do().Get()
	if err != nil {
		t.Errorf("Unexpected error: %v %#v", err, err)
		return
	}
	if obj == nil {
		t.Error("nil obj")
	} else if !api.Semantic.DeepDerivative(expectedObj, obj) {
		t.Errorf("Expected: %#v, got %#v", expectedObj, obj)
	}
	tmpStr := string(reqBodyExpected)
	fakeHandler.ValidateRequest(t, "/api/v1beta2/foo/bar/baz?labels=name%3Dfoo&timeout=1s", "POST", &tmpStr)
	if fakeHandler.RequestReceived.Header["Authorization"] == nil {
		t.Errorf("Request is missing authorization header: %#v", *fakeHandler.RequestReceived)
	}
}

func TestEventSearch(t *testing.T) {
	c := &testClient{
		Request: testRequest{
			Method: "GET",
			Path:   testapi.ResourcePath("events", "baz", ""),
			Query: url.Values{
				api.FieldSelectorQueryParam(testapi.Version()): []string{
					getInvolvedObjectNameFieldLabel(testapi.Version()) + "=foo,",
					"involvedObject.namespace=baz,",
					"involvedObject.kind=Pod",
				},
				api.LabelSelectorQueryParam(testapi.Version()): []string{},
			},
		},
		Response: Response{StatusCode: 200, Body: &api.EventList{}},
	}
	eventList, err := c.Setup().Events("baz").Search(
		&api.Pod{
			ObjectMeta: api.ObjectMeta{
				Name:      "foo",
				Namespace: "baz",
				SelfLink:  testapi.SelfLink("pods", ""),
			},
		},
	)
	c.Validate(t, eventList, err)
}

func TestListServicesLabels(t *testing.T) {
	ns := api.NamespaceDefault
	labelSelectorQueryParamName := api.LabelSelectorQueryParam(testapi.Version())
	c := &testClient{
		Request: testRequest{
			Method: "GET",
			Path:   testapi.ResourcePath("services", ns, ""),
			Query:  buildQueryValues(ns, url.Values{labelSelectorQueryParamName: []string{"foo=bar,name=baz"}})},
		Response: Response{StatusCode: 200,
			Body: &api.ServiceList{
				Items: []api.Service{
					{
						ObjectMeta: api.ObjectMeta{
							Name: "name",
							Labels: map[string]string{
								"foo":  "bar",
								"name": "baz",
							},
						},
						Spec: api.ServiceSpec{
							Selector: map[string]string{
								"one": "two",
							},
						},
					},
				},
			},
		},
	}
	c.Setup()
	c.QueryValidator[labelSelectorQueryParamName] = validateLabels
	selector := labels.Set{"foo": "bar", "name": "baz"}.AsSelector()
	receivedServiceList, err := c.Services(ns).List(selector)
	c.Validate(t, receivedServiceList, err)
}

func TestListObject(t *testing.T) {
	pods, _ := testData()
	labelKey := api.LabelSelectorQueryParam(testapi.Version())
	b := NewBuilder(latest.RESTMapper, api.Scheme, fakeClientWith("", t, map[string]string{
		"/namespaces/test/pods?" + labelKey + "=a%3Db": runtime.EncodeOrDie(latest.Codec, pods),
	})).
		SelectorParam("a=b").
		NamespaceParam("test").
		ResourceTypeOrNameArgs(true, "pods").
		Flatten()

	obj, err := b.Do().Object()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	list, ok := obj.(*api.List)
	if !ok {
		t.Fatalf("unexpected object: %#v", obj)
	}
	if list.ResourceVersion != pods.ResourceVersion || len(list.Items) != 2 {
		t.Errorf("unexpected list: %#v", list)
	}

	mapping, err := b.Do().ResourceMapping()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if mapping.Resource != "pods" {
		t.Errorf("unexpected resource mapping: %#v", mapping)
	}
}

func (m *Helper) List(namespace, apiVersion string, selector labels.Selector) (runtime.Object, error) {
	return m.RESTClient.Get().
		NamespaceIfScoped(namespace, m.NamespaceScoped).
		Resource(m.Resource).
		LabelsSelectorParam(api.LabelSelectorQueryParam(apiVersion), selector).
		Do().
		Get()
}

// LabelsSelectorParam adds the given selector as a query parameter
func (r *Request) LabelsSelectorParam(s labels.Selector) *Request {
	if r.err != nil {
		return r
	}
	if s.Empty() {
		return r
	}
	return r.setParam(api.LabelSelectorQueryParam(r.apiVersion), s.String())
}

// Watch starts watching for secrets matching the given selectors.
func (s *secrets) Watch(label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
	return s.client.Get().
		Prefix("watch").
		Namespace(s.namespace).
		Resource("secrets").
		Param("resourceVersion", resourceVersion).
		LabelsSelectorParam(api.LabelSelectorQueryParam(s.client.APIVersion()), label).
		FieldsSelectorParam(api.FieldSelectorQueryParam(s.client.APIVersion()), field).
		Watch()
}

// Watch starts watching for events matching the given selectors.
func (e *events) Watch(label labels.Selector, field fields.Selector, resourceVersion string) (watch.Interface, error) {
	return e.client.Get().
		Prefix("watch").
		NamespaceIfScoped(e.namespace, len(e.namespace) > 0).
		Resource("events").
		Param("resourceVersion", resourceVersion).
		LabelsSelectorParam(api.LabelSelectorQueryParam(e.client.APIVersion()), label).
		FieldsSelectorParam(api.FieldSelectorQueryParam(e.client.APIVersion()), field).
		Watch()
}

func (m *Helper) Watch(namespace, resourceVersion, apiVersion string, labelSelector labels.Selector, fieldSelector fields.Selector) (watch.Interface, error) {
	return m.RESTClient.Get().
		Prefix("watch").
		NamespaceIfScoped(namespace, m.NamespaceScoped).
		Resource(m.Resource).
		Param("resourceVersion", resourceVersion).
		LabelsSelectorParam(api.LabelSelectorQueryParam(apiVersion), labelSelector).
		FieldsSelectorParam(api.FieldSelectorQueryParam(apiVersion), fieldSelector).
		Watch()
}

// List takes a selector, and returns the list of endpoints that match that selector
func (c *endpoints) List(selector labels.Selector) (result *api.EndpointsList, err error) {
	result = &api.EndpointsList{}
	err = c.r.Get().
		Namespace(c.ns).
		Resource("endpoints").
		LabelsSelectorParam(api.LabelSelectorQueryParam(c.r.APIVersion()), selector).
		Do().
		Into(result)
	return
}

func TestDeleteMultipleSelector(t *testing.T) {
	pods, svc, _ := testData()

	f, tf, codec := NewAPIFactory()
	tf.Printer = &testPrinter{}
	tf.Client = &client.FakeRESTClient{
		Codec: codec,
		Client: client.HTTPClientFunc(func(req *http.Request) (*http.Response, error) {
			switch p, m := req.URL.Path, req.Method; {
			case p == "/namespaces/test/pods" && m == "GET":
				if req.URL.Query().Get(api.LabelSelectorQueryParam(testapi.Version())) != "a=b" {
					t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
				}
				return &http.Response{StatusCode: 200, Body: objBody(codec, pods)}, nil
			case p == "/namespaces/test/services" && m == "GET":
				if req.URL.Query().Get(api.LabelSelectorQueryParam(testapi.Version())) != "a=b" {
					t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
				}
				return &http.Response{StatusCode: 200, Body: objBody(codec, svc)}, nil
			case strings.HasPrefix(p, "/namespaces/test/pods/") && m == "DELETE":
				return &http.Response{StatusCode: 200, Body: objBody(codec, &pods.Items[0])}, nil
			case strings.HasPrefix(p, "/namespaces/test/services/") && m == "DELETE":
				return &http.Response{StatusCode: 200, Body: objBody(codec, &svc.Items[0])}, nil
			default:
				t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
				return nil, nil
			}
		}),
	}
	tf.Namespace = "test"
	buf := bytes.NewBuffer([]byte{})

	cmd := NewCmdDelete(f, buf)
	cmd.Flags().Set("selector", "a=b")
	cmd.Flags().Set("cascade", "false")
	cmd.Flags().Set("output", "name")
	cmd.Run(cmd, []string{"pods,services"})

	if buf.String() != "pod/foo\npod/bar\nservice/baz\n" {
		t.Errorf("unexpected output: %s", buf.String())
	}
}

// List returns a list of events matching the selectors.
func (e *events) List(label labels.Selector, field fields.Selector) (*api.EventList, error) {
	result := &api.EventList{}
	err := e.client.Get().
		NamespaceIfScoped(e.namespace, len(e.namespace) > 0).
		Resource("events").
		LabelsSelectorParam(api.LabelSelectorQueryParam(e.client.APIVersion()), label).
		FieldsSelectorParam(api.FieldSelectorQueryParam(e.client.APIVersion()), field).
		Do().
		Into(result)
	return result, err
}

func (c *testClient) ValidateCommon(t *testing.T, err error) {
	defer c.server.Close()

	if c.Error {
		if err == nil {
			t.Errorf("error expected for %#v, got none", c.Request)
		}
		return
	}
	if err != nil {
		t.Errorf("no error expected for %#v, got: %v", c.Request, err)
	}

	if c.handler.RequestReceived == nil {
		t.Errorf("handler had an empty request, %#v", c)
		return
	}

	requestBody := body(c.Request.Body, c.Request.RawBody)
	actualQuery := c.handler.RequestReceived.URL.Query()
	t.Logf("got query: %v", actualQuery)
	t.Logf("path: %v", c.Request.Path)
	// We check the query manually, so blank it out so that FakeHandler.ValidateRequest
	// won't check it.
	c.handler.RequestReceived.URL.RawQuery = ""
	c.handler.ValidateRequest(t, path.Join(c.Request.Path), c.Request.Method, requestBody)
	for key, values := range c.Request.Query {
		validator, ok := c.QueryValidator[key]
		if !ok {
			switch key {
			case api.LabelSelectorQueryParam(testapi.Version()):
				validator = validateLabels
			case api.FieldSelectorQueryParam(testapi.Version()):
				validator = validateFields
			default:
				validator = func(a, b string) bool { return a == b }
			}
		}
		observed := actualQuery.Get(key)
		wanted := strings.Join(values, "")
		if !validator(wanted, observed) {
			t.Errorf("Unexpected query arg for key: %s.  Expected %s, Received %s", key, wanted, observed)
		}
	}
	if c.Request.Header != "" {
		if c.handler.RequestReceived.Header.Get(c.Request.Header) == "" {
			t.Errorf("header %q not found in request %#v", c.Request.Header, c.handler.RequestReceived)
		}
	}

	if expected, received := requestBody, c.handler.RequestBody; expected != nil && *expected != received {
		t.Errorf("bad body for request %#v: expected %s, got %s", c.Request, *expected, received)
	}
}

// List returns a list of secrets matching the selectors.
func (s *secrets) List(label labels.Selector, field fields.Selector) (*api.SecretList, error) {
	result := &api.SecretList{}

	err := s.client.Get().
		Namespace(s.namespace).
		Resource("secrets").
		LabelsSelectorParam(api.LabelSelectorQueryParam(s.client.APIVersion()), label).
		FieldsSelectorParam(api.FieldSelectorQueryParam(s.client.APIVersion()), field).
		Do().
		Into(result)

	return result, err
}

func parseSelectorQueryParams(query url.Values, version, apiResource string) (label labels.Selector, field fields.Selector, err error) {
	labelString := query.Get(api.LabelSelectorQueryParam(version))
	label, err = labels.Parse(labelString)
	if err != nil {
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("The 'labels' selector parameter (%s) could not be parsed: %v", labelString, err))
	}

	convertToInternalVersionFunc := func(label, value string) (newLabel, newValue string, err error) {
		return api.Scheme.ConvertFieldLabel(version, apiResource, label, value)
	}
	fieldString := query.Get(api.FieldSelectorQueryParam(version))
	field, err = fields.ParseAndTransformSelector(fieldString, convertToInternalVersionFunc)
	if err != nil {
		return nil, nil, errors.NewBadRequest(fmt.Sprintf("The 'fields' selector parameter (%s) could not be parsed: %v", fieldString, err))
	}
	return label, field, nil
}