From dc946f85168d6b375e185f53cb1a02636be6d7eb Mon Sep 17 00:00:00 2001
From: Daniel Hodan <daniel.hodan@czertbytes.de>
Date: Thu, 18 Oct 2018 15:11:30 +0200
Subject: GH-9635: Add GetUsersByUsernames to plugin API (#9647)

* add GetUsersByUsernames to plugin api

* fix GetUsersByUsernames comment
---
 app/plugin_api.go              |  4 ++++
 plugin/api.go                  |  5 +++++
 plugin/client_rpc_generated.go | 29 +++++++++++++++++++++++++++++
 plugin/plugintest/api.go       | 25 +++++++++++++++++++++++++
 4 files changed, 63 insertions(+)

diff --git a/app/plugin_api.go b/app/plugin_api.go
index 32e3d6303..3e03f8597 100644
--- a/app/plugin_api.go
+++ b/app/plugin_api.go
@@ -164,6 +164,10 @@ func (api *PluginAPI) GetUserByUsername(name string) (*model.User, *model.AppErr
 	return api.app.GetUserByUsername(name)
 }
 
+func (api *PluginAPI) GetUsersByUsernames(usernames []string) ([]*model.User, *model.AppError) {
+	return api.app.GetUsersByUsernames(usernames, true)
+}
+
 func (api *PluginAPI) GetUsersInTeam(teamId string, page int, perPage int) ([]*model.User, *model.AppError) {
 	return api.app.GetUsersInTeam(teamId, page, perPage)
 }
diff --git a/plugin/api.go b/plugin/api.go
index 660309f57..a9040199e 100644
--- a/plugin/api.go
+++ b/plugin/api.go
@@ -54,6 +54,11 @@ type API interface {
 	// GetUserByUsername gets a user by their username.
 	GetUserByUsername(name string) (*model.User, *model.AppError)
 
+	// GetUsersByUsernames gets users by their usernames.
+	//
+	// Minimum server version: 5.6
+	GetUsersByUsernames(usernames []string) ([]*model.User, *model.AppError)
+
 	// GetUsersInTeam gets users in team.
 	//
 	// Minimum server version: 5.6
diff --git a/plugin/client_rpc_generated.go b/plugin/client_rpc_generated.go
index 4648b86ce..1b87dd9d6 100644
--- a/plugin/client_rpc_generated.go
+++ b/plugin/client_rpc_generated.go
@@ -827,6 +827,35 @@ func (s *apiRPCServer) GetUserByUsername(args *Z_GetUserByUsernameArgs, returns
 	return nil
 }
 
+type Z_GetUsersByUsernamesArgs struct {
+	A []string
+}
+
+type Z_GetUsersByUsernamesReturns struct {
+	A []*model.User
+	B *model.AppError
+}
+
+func (g *apiRPCClient) GetUsersByUsernames(usernames []string) ([]*model.User, *model.AppError) {
+	_args := &Z_GetUsersByUsernamesArgs{usernames}
+	_returns := &Z_GetUsersByUsernamesReturns{}
+	if err := g.client.Call("Plugin.GetUsersByUsernames", _args, _returns); err != nil {
+		log.Printf("RPC call to GetUsersByUsernames API failed: %s", err.Error())
+	}
+	return _returns.A, _returns.B
+}
+
+func (s *apiRPCServer) GetUsersByUsernames(args *Z_GetUsersByUsernamesArgs, returns *Z_GetUsersByUsernamesReturns) error {
+	if hook, ok := s.impl.(interface {
+		GetUsersByUsernames(usernames []string) ([]*model.User, *model.AppError)
+	}); ok {
+		returns.A, returns.B = hook.GetUsersByUsernames(args.A)
+	} else {
+		return encodableError(fmt.Errorf("API GetUsersByUsernames called but not implemented."))
+	}
+	return nil
+}
+
 type Z_GetUsersInTeamArgs struct {
 	A string
 	B int
diff --git a/plugin/plugintest/api.go b/plugin/plugintest/api.go
index 78e361e0f..4ef879bad 100644
--- a/plugin/plugintest/api.go
+++ b/plugin/plugintest/api.go
@@ -1161,6 +1161,31 @@ func (_m *API) GetUserStatusesByIds(userIds []string) ([]*model.Status, *model.A
 	return r0, r1
 }
 
+// GetUsersByUsernames provides a mock function with given fields: usernames
+func (_m *API) GetUsersByUsernames(usernames []string) ([]*model.User, *model.AppError) {
+	ret := _m.Called(usernames)
+
+	var r0 []*model.User
+	if rf, ok := ret.Get(0).(func([]string) []*model.User); ok {
+		r0 = rf(usernames)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).([]*model.User)
+		}
+	}
+
+	var r1 *model.AppError
+	if rf, ok := ret.Get(1).(func([]string) *model.AppError); ok {
+		r1 = rf(usernames)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).(*model.AppError)
+		}
+	}
+
+	return r0, r1
+}
+
 // GetUsersInTeam provides a mock function with given fields: teamId, page, perPage
 func (_m *API) GetUsersInTeam(teamId string, page int, perPage int) ([]*model.User, *model.AppError) {
 	ret := _m.Called(teamId, page, perPage)
-- 
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