Move command logic into app layer (#5617)

app/command_join.go

@@ -0,0 +1,62 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package app
+
+import (
+	"github.com/mattermost/platform/model"
+	goi18n "github.com/nicksnyder/go-i18n/i18n"
+)
+
+type JoinProvider struct {
+}
+
+const (
+	CMD_JOIN = "join"
+)
+
+func init() {
+	RegisterCommandProvider(&JoinProvider{})
+}
+
+func (me *JoinProvider) GetTrigger() string {
+	return CMD_JOIN
+}
+
+func (me *JoinProvider) GetCommand(T goi18n.TranslateFunc) *model.Command {
+	return &model.Command{
+		Trigger:          CMD_JOIN,
+		AutoComplete:     true,
+		AutoCompleteDesc: T("api.command_join.desc"),
+		AutoCompleteHint: T("api.command_join.hint"),
+		DisplayName:      T("api.command_join.name"),
+	}
+}
+
+func (me *JoinProvider) DoCommand(args *model.CommandArgs, message string) *model.CommandResponse {
+	if result := <-Srv.Store.Channel().GetByName(args.TeamId, message, true); result.Err != nil {
+		return &model.CommandResponse{Text: args.T("api.command_join.list.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+	} else {
+		channel := result.Data.(*model.Channel)
+
+		if channel.Name == message {
+
+			if channel.Type != model.CHANNEL_OPEN {
+				return &model.CommandResponse{Text: args.T("api.command_join.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+			}
+
+			if err := JoinChannel(channel, args.UserId); err != nil {
+				return &model.CommandResponse{Text: args.T("api.command_join.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+			}
+
+			team, err := GetTeam(channel.TeamId)
+			if err != nil {
+				return &model.CommandResponse{Text: args.T("api.command_join.fail.app_error"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+			}
+
+			return &model.CommandResponse{GotoLocation: args.SiteURL + "/" + team.Name + "/channels/" + channel.Name, Text: args.T("api.command_join.success"), ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL}
+		}
+	}
+
+	return &model.CommandResponse{ResponseType: model.COMMAND_RESPONSE_TYPE_EPHEMERAL, Text: args.T("api.command_join.missing.app_error")}
+}