package registry

import (
	"github.com/dotcloud/docker/auth"
	"strings"
	"testing"
)
var (
	IMAGE_ID = "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d"
	TOKEN = []string{"fake-token"}
	REPO = "foo42/bar"
)

type simpleVersionInfo struct {
	name    string
	version string
}

func (v *simpleVersionInfo) Name() string {
	return v.name
}

func (v *simpleVersionInfo) Version() string {
	return v.version
}

func spawnTestRegistry(t *testing.T) *Registry {
	versionInfo := make([]VersionInfo, 0, 4)
	versionInfo = append(versionInfo, &simpleVersionInfo{"docker", "0.0.0test"})
	versionInfo = append(versionInfo, &simpleVersionInfo{"go", "test"})
	versionInfo = append(versionInfo, &simpleVersionInfo{"git-commit", "test"})
	versionInfo = append(versionInfo, &simpleVersionInfo{"kernel", "test"})
	authConfig := &auth.AuthConfig{}
	r, err := NewRegistry("", authConfig, versionInfo...)
	if err != nil {
		t.Fatal(err)
	}
	return r
}

func TestPingRegistryEndpoint(t *testing.T) {
	err := pingRegistryEndpoint(makeURL("/v1/"))
	if err != nil {
		t.Fatal(err)
	}
}

func TestGetRemoteHistory(t *testing.T) {
	r := spawnTestRegistry(t)
	hist, err := r.GetRemoteHistory(IMAGE_ID, makeURL("/v1/"), TOKEN)
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, len(hist), 2, "Expected 2 images in history")
	assertEqual(t, hist[0], IMAGE_ID, "Expected " + IMAGE_ID + "as first ancestry")
	assertEqual(t, hist[1], "77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
		"Unexpected second ancestry")
}

func TestLookupRemoteImage(t *testing.T) {
	r := spawnTestRegistry(t)
	found := r.LookupRemoteImage(IMAGE_ID, makeURL("/v1/"), TOKEN)
	assertEqual(t, found, true, "Expected remote lookup to succeed")
	found = r.LookupRemoteImage("abcdef", makeURL("/v1/"), TOKEN)
	assertEqual(t, found, false, "Expected remote lookup to fail")
}

func TestGetRemoteImageJSON(t *testing.T) {
	r := spawnTestRegistry(t)
	json, size, err := r.GetRemoteImageJSON(IMAGE_ID, makeURL("/v1/"), TOKEN)
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, size, 154, "Expected size 154")
	if len(json) <= 0 {
		t.Fatal("Expected non-empty json")
	}

	_, _, err = r.GetRemoteImageJSON("abcdef", makeURL("/v1/"), TOKEN)
	if err == nil {
		t.Fatal("Expected image not found error")
	}
}

func TestGetRemoteImageLayer(t *testing.T) {
	r := spawnTestRegistry(t)
	data, err := r.GetRemoteImageLayer(IMAGE_ID, makeURL("/v1/"), TOKEN)
	if err != nil {
		t.Fatal(err)
	}
	if data == nil {
		t.Fatal("Expected non-nil data result")
	}

	_, err = r.GetRemoteImageLayer("abcdef", makeURL("/v1/"), TOKEN)
	if err == nil {
		t.Fatal("Expected image not found error")
	}
}

func TestGetRemoteTags(t *testing.T) {
	r := spawnTestRegistry(t)
	tags, err := r.GetRemoteTags([]string{makeURL("/v1/")}, REPO, TOKEN)
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, len(tags), 1, "Expected one tag")
	assertEqual(t, tags["latest"], IMAGE_ID, "Expected tag latest to map to " + IMAGE_ID)

	_, err = r.GetRemoteTags([]string{makeURL("/v1/")}, "foo42/baz", TOKEN)
	if err == nil {
		t.Fatal("Expected error when fetching tags for bogus repo")
	}
}

func TestGetRepositoryData(t *testing.T) {
	r := spawnTestRegistry(t)
	data, err := r.GetRepositoryData(makeURL("/v1/"), "foo42/bar")
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, len(data.ImgList), 2, "Expected 2 images in ImgList")
	assertEqual(t, len(data.Endpoints), 1, "Expected one endpoint in Endpoints")
}

func TestPushImageJSONRegistry(t *testing.T) {
	r := spawnTestRegistry(t)
	imgData := &ImgData{
		ID:	"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
		Checksum: "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
	}

	err := r.PushImageJSONRegistry(imgData, []byte{ 0x42, 0xdf, 0x0 }, makeURL("/v1/"), TOKEN)
	if err != nil {
		t.Fatal(err)
	}
}

func TestPushImageLayerRegistry(t *testing.T) {
	r := spawnTestRegistry(t)
	layer := strings.NewReader("FAKELAYER")
	r.PushImageLayerRegistry(IMAGE_ID, layer, makeURL("/v1/"), TOKEN)
}

func TestResolveRepositoryName(t *testing.T) {
	_, _, err := ResolveRepositoryName("https://github.com/dotcloud/docker")
	assertEqual(t, err, ErrInvalidRepositoryName, "Expected error invalid repo name")
	ep, repo, err := ResolveRepositoryName("fooo/bar")
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, ep, auth.IndexServerAddress(), "Expected endpoint to be index server address")
	assertEqual(t, repo, "fooo/bar", "Expected resolved repo to be foo/bar")

	u := makeURL("")[7:]
	ep, repo, err = ResolveRepositoryName(u + "/private/moonbase")
	if err != nil {
		t.Fatal(err)
	}
	assertEqual(t, ep, "http://" + u + "/v1/", "Expected endpoint to be " + u)
	assertEqual(t, repo, "private/moonbase", "Expected endpoint to be private/moonbase")
}

func TestPushRegistryTag(t *testing.T) {
	r := spawnTestRegistry(t)
	err := r.PushRegistryTag("foo42/bar", IMAGE_ID, "stable", makeURL("/v1/"), TOKEN)
	if err != nil {
		t.Fatal(err)
	}
}

func TestPushImageJSONIndex(t *testing.T) {
	r := spawnTestRegistry(t)
	imgData := []*ImgData{
		&ImgData{
			ID:	"77dbf71da1d00e3fbddc480176eac8994025630c6590d11cfc8fe1209c2a1d20",
			Checksum: "sha256:1ac330d56e05eef6d438586545ceff7550d3bdcb6b19961f12c5ba714ee1bb37",
		},
		&ImgData{
			ID: "42d718c941f5c532ac049bf0b0ab53f0062f09a03afd4aa4a02c098e46032b9d",
			Checksum: "sha256:bea7bf2e4bacd479344b737328db47b18880d09096e6674165533aa994f5e9f2",
		},
	}
	ep := makeURL("/v1/")
	repoData, err := r.PushImageJSONIndex(ep, "foo42/bar", imgData, false, nil)
	if err != nil {
		t.Fatal(err)
	}
	if repoData == nil {
		t.Fatal("Expected RepositoryData object")
	}
	repoData, err = r.PushImageJSONIndex(ep, "foo42/bar", imgData, true, []string{ep})
	if err != nil {
		t.Fatal(err)
	}
	if repoData == nil {
		t.Fatal("Expected RepositoryData object")
	}
}

func TestSearchRepositories(t *testing.T) {
	r := spawnTestRegistry(t)
	results, err := r.SearchRepositories("supercalifragilisticepsialidocious")
	if err != nil {
		t.Fatal(err)
	}
	if results == nil {
		t.Fatal("Expected non-nil SearchResults object")
	}
	assertEqual(t, results.NumResults, 0, "Expected 0 search results")
}