add CreateDirectChannel plugin api (#9848)

app/plugin_api.go

@@ -523,6 +523,25 @@ func (api *PluginAPI) RemoveTeamIcon(teamId string) *model.AppError {
 	return nil
 }
 
+func (api *PluginAPI) CreateDirectChannel(userId1 string, userId2 string) (*model.Channel, *model.AppError) {
+	_, err := api.app.GetUser(userId1)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = api.app.GetUser(userId2)
+	if err != nil {
+		return nil, err
+	}
+
+	dm, err := api.app.CreateDirectChannel(userId1, userId2)
+	if err != nil {
+		return nil, err
+	}
+
+	return dm, nil
+}
+
 // Plugin Section
 
 func (api *PluginAPI) GetPlugins() ([]*model.Manifest, *model.AppError) {

app/plugin_api_test.go

@@ -509,3 +509,21 @@ func TestPluginAPIRemoveTeamIcon(t *testing.T) {
 	err = api.RemoveTeamIcon(th.BasicTeam.Id)
 	require.Nil(t, err)
 }
+
+func TestPluginAPICreateDirectChannel(t *testing.T) {
+	th := Setup().InitBasic()
+	defer th.TearDown()
+	api := th.SetupPluginAPI()
+
+	dm1, err := api.CreateDirectChannel(th.BasicUser.Id, th.BasicUser2.Id)
+	require.Nil(t, err)
+	require.NotEmpty(t, dm1)
+
+	dm2, err := api.CreateDirectChannel(th.BasicUser.Id, th.BasicUser.Id)
+	require.Nil(t, err)
+	require.NotEmpty(t, dm2)
+
+	dm3, err := api.CreateDirectChannel(th.BasicUser.Id, model.NewId())
+	require.NotNil(t, err)
+	require.Empty(t, dm3)
+}

plugin/api.go

@@ -52,6 +52,11 @@ type API interface {
 	// CreateUser creates a user.
 	CreateUser(user *model.User) (*model.User, *model.AppError)
 
+	// CreateDirectChannel creates a Direct channel.
+	//
+	// Minimum server version: 5.6
+	CreateDirectChannel(userId1 string, userId2 string) (*model.Channel, *model.AppError)
+
 	// DeleteUser deletes a user.
 	DeleteUser(userId string) *model.AppError
 

plugin/client_rpc_generated.go

@@ -767,6 +767,36 @@ func (s *apiRPCServer) CreateUser(args *Z_CreateUserArgs, returns *Z_CreateUserR
 	return nil
 }
 
+type Z_CreateDirectChannelArgs struct {
+	A string
+	B string
+}
+
+type Z_CreateDirectChannelReturns struct {
+	A *model.Channel
+	B *model.AppError
+}
+
+func (g *apiRPCClient) CreateDirectChannel(userId1 string, userId2 string) (*model.Channel, *model.AppError) {
+	_args := &Z_CreateDirectChannelArgs{userId1, userId2}
+	_returns := &Z_CreateDirectChannelReturns{}
+	if err := g.client.Call("Plugin.CreateDirectChannel", _args, _returns); err != nil {
+		log.Printf("RPC call to CreateDirectChannel API failed: %s", err.Error())
+	}
+	return _returns.A, _returns.B
+}
+
+func (s *apiRPCServer) CreateDirectChannel(args *Z_CreateDirectChannelArgs, returns *Z_CreateDirectChannelReturns) error {
+	if hook, ok := s.impl.(interface {
+		CreateDirectChannel(userId1 string, userId2 string) (*model.Channel, *model.AppError)
+	}); ok {
+		returns.A, returns.B = hook.CreateDirectChannel(args.A, args.B)
+	} else {
+		return encodableError(fmt.Errorf("API CreateDirectChannel called but not implemented."))
+	}
+	return nil
+}
+
 type Z_DeleteUserArgs struct {
 	A string
 }

plugin/plugintest/api.go

@@ -112,6 +112,31 @@ func (_m *API) CreateChannel(channel *model.Channel) (*model.Channel, *model.App
 	return r0, r1
 }
 
+// CreateDirectChannel provides a mock function with given fields: userId1, userId2
+func (_m *API) CreateDirectChannel(userId1 string, userId2 string) (*model.Channel, *model.AppError) {
+	ret := _m.Called(userId1, userId2)
+
+	var r0 *model.Channel
+	if rf, ok := ret.Get(0).(func(string, string) *model.Channel); ok {
+		r0 = rf(userId1, userId2)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*model.Channel)
+		}
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func(string, string) *model.AppError); ok {
+		r1 = rf(userId1, userId2)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
+}
+
 // CreatePost provides a mock function with given fields: post
 func (_m *API) CreatePost(post *model.Post) (*model.Post, *model.AppError) {
 	ret := _m.Called(post)