Move command logic into app layer (#5617)

app/command_msg.go

@@ -0,0 +1,110 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+	"strings"
+
+	l4g "github.com/alecthomas/log4go"
+	"github.com/mattermost/platform/model"
+	goi18n "github.com/nicksnyder/go-i18n/i18n"
+)
+
+type msgProvider struct {
+}
+
+const (
+	CMD_MSG = "msg"
+)
+
+func init() {
+	RegisterCommandProvider(&msgProvider{})
+}
+
+func (me *msgProvider) GetTrigger() string {
+	return CMD_MSG
+}
+
+func (me *msgProvider) GetCommand(T goi18n.TranslateFunc) *model.Command {
+	return &model.Command{
+		Trigger:          CMD_MSG,
+		AutoComplete:     true,
+		AutoCompleteDesc: T("api.command_msg.desc"),
+		AutoCompleteHint: T("api.command_msg.hint"),
+		DisplayName:      T("api.command_msg.name"),
+	}
+}
+
+func (me *msgProvider) DoCommand(args *model.CommandArgs, message string) *model.CommandResponse {
+
+	splitMessage := strings.SplitN(message, " ", 2)
+
+	parsedMessage := ""
+	targetUsername := ""
+	teamId := ""
+
+	if len(splitMessage) > 1 {
+		parsedMessage = strings.SplitN(message, " ", 2)[1]
+	}
+	targetUsername = strings.SplitN(message, " ", 2)[0]
+	targetUsername = strings.TrimPrefix(targetUsername, "@")
+
+	var userProfile *model.User
+	if result := <-Srv.Store.User().GetByUsername(targetUsername); result.Err != nil {
+		l4g.Error(result.Err.Error())
+		return &model.CommandResponse{Text: args.T("api.command_msg.missing.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+	} else {
+		userProfile = result.Data.(*model.User)
+	}
+
+	if userProfile.Id == args.UserId {
+		return &model.CommandResponse{Text: args.T("api.command_msg.missing.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+	}
+
+	// Find the channel based on this user
+	channelName := model.GetDMNameFromIds(args.UserId, userProfile.Id)
+
+	targetChannelId := ""
+	if channel := <-Srv.Store.Channel().GetByName(args.TeamId, channelName, true); channel.Err != nil {
+		if channel.Err.Id == "store.sql_channel.get_by_name.missing.app_error" {
+			if directChannel, err := CreateDirectChannel(args.UserId, userProfile.Id); err != nil {
+				l4g.Error(err.Error())
+				return &model.CommandResponse{Text: args.T("api.command_msg.dm_fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+			} else {
+				targetChannelId = directChannel.Id
+			}
+		} else {
+			l4g.Error(channel.Err.Error())
+			return &model.CommandResponse{Text: args.T("api.command_msg.dm_fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+		}
+	} else {
+		channel := channel.Data.(*model.Channel)
+		targetChannelId = channel.Id
+		teamId = channel.TeamId
+	}
+
+	if len(parsedMessage) > 0 {
+		post := &model.Post{}
+		post.Message = parsedMessage
+		post.ChannelId = targetChannelId
+		post.UserId = args.UserId
+		if _, err := CreatePost(post, args.TeamId, true); err != nil {
+			return &model.CommandResponse{Text: args.T("api.command_msg.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+		}
+	}
+
+	if teamId == "" {
+		if len(args.Session.TeamMembers) == 0 {
+			return &model.CommandResponse{Text: args.T("api.command_msg.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+		}
+		teamId = args.Session.TeamMembers[0].TeamId
+	}
+
+	team, err := GetTeam(teamId)
+	if err != nil {
+		return &model.CommandResponse{Text: args.T("api.command_msg.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+	}
+
+	return &model.CommandResponse{GotoLocation: args.SiteURL + "/" + team.Name + "/channels/" + channelName, Text: "", ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+}