[MM-14727] Modified App.Bot.CreateBot to create a new post to the bot…

app/bot.go

@@ -6,6 +6,7 @@ package app
 import (
 	"github.com/mattermost/mattermost-server/mlog"
 	"github.com/mattermost/mattermost-server/model"
+	"github.com/mattermost/mattermost-server/utils"
 )
 
 // CreateBot creates the given bot and corresponding user.
@@ -22,6 +23,29 @@ func (a *App) CreateBot(bot *model.Bot) (*model.Bot, *model.AppError) {
 		return nil, result.Err
 	}
 
+	// Get the owner of the bot, if one exists. If not, don't send a message
+	ownerUser, _ := a.Srv.Store.User().Get(bot.OwnerId)
+	if ownerUser != nil {
+		// Send a message to the bot's creator to inform them that the bot needs to be added
+		// to a team and channel after it's created
+		channel, err := a.GetOrCreateDirectChannel(result.Data.(*model.Bot).UserId, bot.OwnerId)
+		if err != nil {
+			return nil, err
+		}
+
+		T := utils.GetUserTranslations(ownerUser.Locale)
+		botAddPost := &model.Post{
+			Type:      model.POST_ADD_BOT_TEAMS_CHANNELS,
+			UserId:    result.Data.(*model.Bot).UserId,
+			ChannelId: channel.Id,
+			Message:   T("api.bot.teams_channels.add_message_mobile"),
+		}
+
+		if _, err := a.CreatePostAsUser(botAddPost, a.Session.Id); err != nil {
+			return nil, err
+		}
+	}
+
 	return result.Data.(*model.Bot), nil
 }
 

app/bot_test.go

@@ -57,6 +57,16 @@ func TestCreateBot(t *testing.T) {
 		assert.Equal(t, "username", bot.Username)
 		assert.Equal(t, "a bot", bot.Description)
 		assert.Equal(t, th.BasicUser.Id, bot.OwnerId)
+
+		// Check that a post was created to add bot to team and channels
+		channel, err := th.App.GetOrCreateDirectChannel(bot.UserId, th.BasicUser.Id)
+		require.Nil(t, err)
+		posts, err := th.App.GetPosts(channel.Id, 0, 1)
+		require.Nil(t, err)
+
+		postArray := posts.ToSlice()
+		assert.Len(t, postArray, 1)
+		assert.Equal(t, postArray[0].Type, model.POST_ADD_BOT_TEAMS_CHANNELS)
 	})
 
 	t.Run("create bot, username already used by a non-bot user", func(t *testing.T) {

i18n/en.json

@@ -135,6 +135,10 @@
     "id": "api.bot.create_disabled",
     "translation": "Bot creation has been disabled."
   },
+  {
+    "id": "api.bot.teams_channels.add_message_mobile",
+    "translation": "Please add me to teams and channels you want me to interact in. To do this, use the browser or Mattermost Desktop App."
+  },
   {
     "id": "api.channel.add_member.added",
     "translation": "%v added to the channel by %v."

model/post.go

@@ -38,6 +38,7 @@ const (
 	POST_CHANNEL_DELETED        = "system_channel_deleted"
 	POST_EPHEMERAL              = "system_ephemeral"
 	POST_CHANGE_CHANNEL_PRIVACY = "system_change_chan_privacy"
+	POST_ADD_BOT_TEAMS_CHANNELS = "add_bot_teams_channels"
 	POST_FILEIDS_MAX_RUNES      = 150
 	POST_FILENAMES_MAX_RUNES    = 4000
 	POST_HASHTAGS_MAX_RUNES     = 1000
@@ -234,7 +235,8 @@ func (o *Post) IsValid(maxPostSize int) *AppError {
 		POST_DISPLAYNAME_CHANGE,
 		POST_CONVERT_CHANNEL,
 		POST_CHANNEL_DELETED,
-		POST_CHANGE_CHANNEL_PRIVACY:
+		POST_CHANGE_CHANNEL_PRIVACY,
+		POST_ADD_BOT_TEAMS_CHANNELS:
 	default:
 		if !strings.HasPrefix(o.Type, POST_CUSTOM_TYPE_PREFIX) {
 			return NewAppError("Post.IsValid", "model.post.is_valid.type.app_error", nil, "id="+o.Type, http.StatusBadRequest)