// MakeConfig creates a functional environConfig for a test.
func MakeConfig(c *gc.C, attrs testing.Attrs) *environConfig {
	cfg, err := config.New(config.NoDefaults, attrs)
	c.Assert(err, gc.IsNil)
	env, err := environs.Prepare(cfg, testing.Context(c), configstore.NewMem())
	c.Assert(err, gc.IsNil)
	return env.(*joyentEnviron).Ecfg()
}

func (s *ListSuite) SetUpTest(c *gc.C) {
	s.FakeJujuHomeSuite.SetUpTest(c)
	s.SetFeatureFlags(feature.JES)
	s.store = configstore.NewMem()

	var envList = []struct {
		name       string
		serverUUID string
		envUUID    string
	}{
		{
			name:       "test1",
			serverUUID: "test1-uuid",
			envUUID:    "test1-uuid",
		}, {
			name:       "test2",
			serverUUID: "test1-uuid",
			envUUID:    "test2-uuid",
		}, {
			name:    "test3",
			envUUID: "test3-uuid",
		},
	}
	for _, env := range envList {
		info := s.store.CreateInfo(env.name)
		info.SetAPIEndpoint(configstore.APIEndpoint{
			Addresses:   []string{"localhost"},
			CACert:      testing.CACert,
			EnvironUUID: env.envUUID,
			ServerUUID:  env.serverUUID,
		})
		err := info.Write()
		c.Assert(err, jc.ErrorIsNil)
	}
}

func (*OpenSuite) TestPrepareGeneratesDifferentAdminSecrets(c *gc.C) {
	baselineAttrs := dummy.SampleConfig().Merge(testing.Attrs{
		"state-server": false,
		"name":         "erewhemos",
	}).Delete(
		"admin-secret",
	)
	cfg, err := config.New(config.NoDefaults, baselineAttrs)
	c.Assert(err, gc.IsNil)

	ctx := testing.Context(c)
	env0, err := environs.Prepare(cfg, ctx, configstore.NewMem())
	c.Assert(err, gc.IsNil)
	adminSecret0 := env0.Config().AdminSecret()
	c.Assert(adminSecret0, gc.HasLen, 32)
	c.Assert(adminSecret0, gc.Matches, "^[0-9a-f]*$")

	env1, err := environs.Prepare(cfg, ctx, configstore.NewMem())
	c.Assert(err, gc.IsNil)
	adminSecret1 := env1.Config().AdminSecret()
	c.Assert(adminSecret1, gc.HasLen, 32)
	c.Assert(adminSecret1, gc.Matches, "^[0-9a-f]*$")

	c.Assert(adminSecret1, gc.Not(gc.Equals), adminSecret0)
}

func (s *createSuite) SetUpTest(c *gc.C) {
	s.FakeJujuHomeSuite.SetUpTest(c)
	s.SetFeatureFlags(feature.JES)
	s.fake = &fakeCreateClient{}
	store := configstore.Default
	s.AddCleanup(func(*gc.C) {
		configstore.Default = store
	})
	s.store = configstore.NewMem()
	configstore.Default = func() (configstore.Storage, error) {
		return s.store, nil
	}
	// Set up the current environment, and write just enough info
	// so we don't try to refresh
	envName := "test-master"
	s.serverUUID = "fake-server-uuid"
	info := s.store.CreateInfo(envName)
	info.SetAPIEndpoint(configstore.APIEndpoint{
		Addresses:   []string{"localhost"},
		CACert:      testing.CACert,
		EnvironUUID: s.serverUUID,
		ServerUUID:  s.serverUUID,
	})
	info.SetAPICredentials(configstore.APICredentials{User: "bob", Password: "sekrit"})
	err := info.Write()
	c.Assert(err, jc.ErrorIsNil)
	s.server = info
	err = envcmd.WriteCurrentEnvironment(envName)
	c.Assert(err, jc.ErrorIsNil)
}

func (*OpenSuite) TestDestroy(c *gc.C) {
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig().Merge(
		testing.Attrs{
			"state-server": false,
			"name":         "erewhemos",
		},
	))
	c.Assert(err, gc.IsNil)

	store := configstore.NewMem()
	// Prepare the environment and sanity-check that
	// the config storage info has been made.
	ctx := testing.Context(c)
	e, err := environs.Prepare(cfg, ctx, store)
	c.Assert(err, gc.IsNil)
	_, err = store.ReadInfo(e.Config().Name())
	c.Assert(err, gc.IsNil)

	err = environs.Destroy(e, store)
	c.Assert(err, gc.IsNil)

	// Check that the environment has actually been destroyed
	// and that the config info has been destroyed too.
	_, err = e.StateServerInstances()
	c.Assert(err, gc.ErrorMatches, "environment has been destroyed")
	_, err = store.ReadInfo(e.Config().Name())
	c.Assert(err, jc.Satisfies, errors.IsNotFound)
}

func (s *NewAPIClientSuite) TestWithBootstrapConfigTakesPrecedence(c *gc.C) {
	s.PatchValue(&version.Current, coretesting.FakeVersionNumber)
	// We want to make sure that the code is using the bootstrap
	// config rather than information from environments.yaml,
	// even when there is an entry in environments.yaml
	// We can do that by changing the info bootstrap config
	// so it has a different environment name.
	coretesting.WriteEnvironments(c, coretesting.MultipleEnvConfig)

	store := configstore.NewMem()
	s.bootstrapEnv(c, coretesting.SampleModelName, store)
	info, err := store.ReadInfo(coretesting.SampleModelName)
	c.Assert(err, jc.ErrorIsNil)

	envName2 := coretesting.SampleCertName + "-2"
	info2 := store.CreateInfo(envName2)
	info2.SetBootstrapConfig(info.BootstrapConfig())
	err = info2.Write()
	c.Assert(err, jc.ErrorIsNil)

	// Now we have info for envName2 which will actually
	// cause a connection to the originally bootstrapped
	// state.
	apiOpen := func(*api.Info, api.DialOpts) (api.Connection, error) {
		return mockedAPIState(noFlags), nil
	}
	st, err := juju.NewAPIFromStore(envName2, store, apiOpen)
	c.Check(err, jc.ErrorIsNil)
	st.Close()
}

func (*OpenSuite) TestNewFromNameWithInvalidEnvironConfig(c *gc.C) {
	store := configstore.NewMem()

	e, err := environs.NewFromName("erewhemos", store)
	c.Assert(err, gc.Equals, environs.ErrNotBootstrapped)
	c.Assert(e, gc.IsNil)
}

func (*OpenSuite) TestConfigForNameDefault(c *gc.C) {
	testing.WriteEnvironments(c, testing.SingleEnvConfig)
	cfg, source, err := environs.ConfigForName("", configstore.NewMem())
	c.Assert(err, gc.IsNil)
	c.Assert(cfg.Name(), gc.Equals, "erewhemos")
	c.Assert(source, gc.Equals, environs.ConfigFromEnvirons)
}

func (*NewAPIStateSuite) TestNewAPIState(c *gc.C) {
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig())
	c.Assert(err, gc.IsNil)
	ctx := coretesting.Context(c)
	env, err := environs.Prepare(cfg, ctx, configstore.NewMem())
	c.Assert(err, gc.IsNil)

	envtesting.UploadFakeTools(c, env.Storage())
	err = bootstrap.Bootstrap(ctx, env, environs.BootstrapParams{})
	c.Assert(err, gc.IsNil)

	cfg = env.Config()
	cfg, err = cfg.Apply(map[string]interface{}{
		"secret": "fnord",
	})
	c.Assert(err, gc.IsNil)
	err = env.SetConfig(cfg)
	c.Assert(err, gc.IsNil)

	st, err := juju.NewAPIState(env, api.DialOpts{})
	c.Assert(st, gc.NotNil)

	// the secrets will not be updated, as they already exist
	attrs, err := st.Client().EnvironmentGet()
	c.Assert(attrs["secret"], gc.Equals, "pork")

	c.Assert(st.Close(), gc.IsNil)
}

func (s *NewAPIClientSuite) bootstrapEnv(c *gc.C, envName string, store configstore.Storage) {
	if store == nil {
		store = configstore.NewMem()
	}
	ctx := envtesting.BootstrapContext(c)
	c.Logf("env name: %s", envName)
	env, err := environs.PrepareFromName(envName, ctx, store)
	c.Assert(err, jc.ErrorIsNil)

	storageDir := c.MkDir()
	s.PatchValue(&envtools.DefaultBaseURL, storageDir)
	stor, err := filestorage.NewFileStorageWriter(storageDir)
	c.Assert(err, jc.ErrorIsNil)
	envtesting.UploadFakeTools(c, stor, "released", "released")

	err = bootstrap.Bootstrap(ctx, env, bootstrap.BootstrapParams{})
	c.Assert(err, jc.ErrorIsNil)
	info, err := store.ReadInfo(envName)
	c.Assert(err, jc.ErrorIsNil)
	creds := info.APICredentials()
	creds.User = dummy.AdminUserTag().Name()
	c.Logf("set creds: %#v", creds)
	info.SetAPICredentials(creds)
	err = info.Write()
	c.Assert(err, jc.ErrorIsNil)
	c.Logf("creds: %#v", info.APICredentials())
	info, err = store.ReadInfo(envName)
	c.Assert(err, jc.ErrorIsNil)
	c.Logf("read creds: %#v", info.APICredentials())
	c.Logf("store: %#v", store)
}

func (cs *NewAPIStateSuite) TestNewAPIState(c *gc.C) {
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig())
	c.Assert(err, jc.ErrorIsNil)
	ctx := envtesting.BootstrapContext(c)
	env, err := environs.Prepare(cfg, ctx, configstore.NewMem())
	c.Assert(err, jc.ErrorIsNil)

	storageDir := c.MkDir()
	cs.PatchValue(&envtools.DefaultBaseURL, storageDir)
	stor, err := filestorage.NewFileStorageWriter(storageDir)
	c.Assert(err, jc.ErrorIsNil)
	envtesting.UploadFakeTools(c, stor, "released", "released")

	err = bootstrap.Bootstrap(ctx, env, bootstrap.BootstrapParams{})
	c.Assert(err, jc.ErrorIsNil)

	cfg = env.Config()
	cfg, err = cfg.Apply(map[string]interface{}{
		"secret": "fnord",
	})
	c.Assert(err, jc.ErrorIsNil)
	err = env.SetConfig(cfg)
	c.Assert(err, jc.ErrorIsNil)

	st, err := juju.NewAPIState(dummy.AdminUserTag(), env, api.DialOpts{})
	c.Assert(st, gc.NotNil)

	// the secrets will not be updated, as they already exist
	attrs, err := st.Client().EnvironmentGet()
	c.Assert(attrs["secret"], gc.Equals, "pork")

	c.Assert(st.Close(), gc.IsNil)
}

func (s *ConfigSuite) TestFirewallMode(c *gc.C) {
	for i, test := range firewallModeTests {
		c.Logf("test %d: %s", i, test.configFirewallMode)
		attrs := dummy.SampleConfig()
		if test.configFirewallMode != "" {
			attrs = attrs.Merge(testing.Attrs{
				"firewall-mode": test.configFirewallMode,
			})
		}
		cfg, err := config.New(config.NoDefaults, attrs)
		if err != nil {
			c.Assert(err, gc.ErrorMatches, test.errorMsg)
			continue
		}
		ctx := testing.Context(c)
		env, err := environs.Prepare(cfg, ctx, configstore.NewMem())
		if test.errorMsg != "" {
			c.Assert(err, gc.ErrorMatches, test.errorMsg)
			continue
		}
		c.Assert(err, gc.IsNil)
		defer env.Destroy()

		firewallMode := env.Config().FirewallMode()
		c.Assert(firewallMode, gc.Equals, test.firewallMode)

		s.TearDownTest(c)
	}
}

// testingEnvConfig prepares an environment configuration using
// the dummy provider.
func testingEnvConfig(c *gc.C) *config.Config {
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig())
	c.Assert(err, jc.ErrorIsNil)
	env, err := environs.Prepare(cfg, envcmd.BootstrapContext(testing.Context(c)), configstore.NewMem())
	c.Assert(err, jc.ErrorIsNil)
	return env.Config()
}

func (t *ProviderSuite) assertGetImageMetadataSources(c *gc.C, stream, officialSourcePath string) {
	// Make an env configured with the stream.
	envAttrs := localConfigAttrs
	if stream != "" {
		envAttrs = envAttrs.Merge(coretesting.Attrs{
			"image-stream": stream,
		})
	}
	cfg, err := config.New(config.NoDefaults, envAttrs)
	c.Assert(err, gc.IsNil)
	env, err := environs.Prepare(cfg, coretesting.Context(c), configstore.NewMem())
	c.Assert(err, gc.IsNil)
	c.Assert(env, gc.NotNil)

	sources, err := imagemetadata.GetMetadataSources(env)
	c.Assert(err, gc.IsNil)
	c.Assert(len(sources), gc.Equals, 2)
	var urls = make([]string, len(sources))
	for i, source := range sources {
		url, err := source.URL("")
		c.Assert(err, gc.IsNil)
		urls[i] = url
	}
	// The control bucket URL contains the bucket name.
	c.Check(strings.Contains(urls[0], ec2.ControlBucketName(env)+"/images"), jc.IsTrue)
	c.Assert(urls[1], gc.Equals, fmt.Sprintf("http://cloud-images.ubuntu.com/%s/", officialSourcePath))
}

func (t *Tests) SetUpTest(c *gc.C) {
	storageDir := c.MkDir()
	t.DefaultBaseURL = "file://" + storageDir + "/tools"
	t.ToolsFixture.SetUpTest(c)
	t.UploadFakeToolsToDirectory(c, storageDir, "released", "released")
	t.ConfigStore = configstore.NewMem()
}

func (s *BaseSuite) SetUpTest(c *gc.C) {
	s.FakeJujuHomeSuite.SetUpTest(c)
	memstore := configstore.NewMem()
	s.PatchValue(&configstore.Default, func() (configstore.Storage, error) {
		return memstore, nil
	})
	os.Setenv(osenv.JujuModelEnvKey, "testing")
	info := memstore.CreateInfo("testing")
	info.SetBootstrapConfig(map[string]interface{}{"random": "extra data"})
	info.SetAPIEndpoint(configstore.APIEndpoint{
		Addresses: []string{"127.0.0.1:12345"},
		Hostnames: []string{"localhost:12345"},
		CACert:    testing.CACert,
		ModelUUID: testing.ModelTag.Id(),
	})
	info.SetAPICredentials(configstore.APICredentials{
		User:     "user-test",
		Password: "password",
	})
	err := info.Write()
	c.Assert(err, jc.ErrorIsNil)
	s.PatchValue(user.ReadPassword, func() (string, error) {
		return "sekrit", nil
	})
	err = modelcmd.WriteCurrentController("testing")
	c.Assert(err, jc.ErrorIsNil)
}

func (*OpenSuite) TestPrepareFromName(c *gc.C) {
	ctx := testing.Context(c)
	e, err := environs.PrepareFromName("erewhemos", ctx, configstore.NewMem())
	c.Assert(err, gc.IsNil)
	c.Assert(e.Config().Name(), gc.Equals, "erewhemos")
	// Check we can access storage ok, which implies the environment has been prepared.
	c.Assert(e.Storage(), gc.NotNil)
}

func (s *StorageSuite) SetUpTest(c *gc.C) {
	s.BaseSuite.SetUpTest(c)
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig())
	c.Assert(err, gc.IsNil)
	s.env, err = environs.Prepare(cfg, testing.Context(c), configstore.NewMem())
	c.Assert(err, gc.IsNil)
	s.dataDir = c.MkDir()
}

func (t *LiveTests) TestBootstrapWithDefaultSeries(c *gc.C) {
	if !t.HasProvisioner {
		c.Skip("HasProvisioner is false; cannot test deployment")
	}

	current := version.Current
	other := current
	other.Series = "quantal"
	if current == other {
		other.Series = "precise"
	}

	dummyCfg, err := config.New(config.NoDefaults, dummy.SampleConfig().Merge(coretesting.Attrs{
		"state-server": false,
		"name":         "dummy storage",
	}))
	dummyenv, err := environs.Prepare(dummyCfg, coretesting.Context(c), configstore.NewMem())
	c.Assert(err, gc.IsNil)
	defer dummyenv.Destroy()

	t.Destroy(c)

	attrs := t.TestConfig.Merge(coretesting.Attrs{"default-series": other.Series})
	cfg, err := config.New(config.NoDefaults, attrs)
	c.Assert(err, gc.IsNil)
	env, err := environs.Prepare(cfg, coretesting.Context(c), t.ConfigStore)
	c.Assert(err, gc.IsNil)
	defer environs.Destroy(env, t.ConfigStore)

	currentName := envtools.StorageName(current)
	otherName := envtools.StorageName(other)
	envStorage := env.Storage()
	dummyStorage := dummyenv.Storage()

	defer envStorage.Remove(otherName)

	_, err = sync.Upload(dummyStorage, &current.Number)
	c.Assert(err, gc.IsNil)

	// This will only work while cross-compiling across releases is safe,
	// which depends on external elements. Tends to be safe for the last
	// few releases, but we may have to refactor some day.
	err = storageCopy(dummyStorage, currentName, envStorage, otherName)
	c.Assert(err, gc.IsNil)

	err = bootstrap.Bootstrap(coretesting.Context(c), env, environs.BootstrapParams{})
	c.Assert(err, gc.IsNil)

	st := t.Env.(testing.GetStater).GetStateInAPIServer()
	// Wait for machine agent to come up on the bootstrap
	// machine and ensure it deployed the proper series.
	m0, err := st.Machine("0")
	c.Assert(err, gc.IsNil)
	mw0 := newMachineToolWaiter(m0)
	defer mw0.Stop()

	waitAgentTools(c, mw0, other)
}

func (s *uploadSuite) SetUpTest(c *gc.C) {
	s.FakeJujuHomeSuite.SetUpTest(c)
	s.ToolsFixture.SetUpTest(c)
	// We only want to use simplestreams to find any synced tools.
	cfg, err := config.New(config.NoDefaults, dummy.SampleConfig())
	c.Assert(err, gc.IsNil)
	s.env, err = environs.Prepare(cfg, coretesting.Context(c), configstore.NewMem())
	c.Assert(err, gc.IsNil)
}