feat: Add RocketChat service

cmd/rocketchat.go

@@ -0,0 +1,122 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/nikoksr/notify"
+	"github.com/nikoksr/notify/service/rocketchat"
+	"github.com/urfave/cli/v2"
+)
+
+type rocketChat struct {
+	Token     string
+	UserId    string
+	Message   string
+	Channel   string
+	Title     string
+	ServerURL string
+	Scheme    string
+}
+
+var (
+	EmptyChannel = "channel name or id can not be empty"
+	TimeValue    = "⏰ " + time.Now().String()
+)
+
+func SendToRocketChat() *cli.Command {
+	var rocketChatOpts rocketChat
+	return &cli.Command{
+		Name:  "rocketchat",
+		Usage: "Send message to rocketchat",
+		Description: `RocketChat uses token & userID to authenticate and send messages to defined channels.
+Multiple channel ids can be used separated by comma ','.
+All configuration options are also available via environment variables.`,
+		UsageText: "pingme rocketchat --userid '123' --token 'xyz'  --url 'localhost' --scheme 'http'" +
+			" --channel 'alert' --msg 'some message'",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.UserId,
+				Name:        "userid",
+				Aliases:     []string{"id"},
+				Required:    true,
+				Usage:       "User ID",
+				EnvVars:     []string{"ROCKETCHAT_USERID"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.Token,
+				Name:        "token",
+				Required:    true,
+				Aliases:     []string{"t"},
+				Usage:       "Auth token for sending message, can also be set as environment variable",
+				EnvVars:     []string{"ROCKETCHAT_TOKEN"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.ServerURL,
+				Name:        "url",
+				Aliases:     []string{"u"},
+				Required:    true,
+				Usage:       "Rocketchat server url",
+				EnvVars:     []string{"ROCKETCHAT_SERVER_URL"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.Scheme,
+				Name:        "scheme",
+				Usage:       "URL scheme http/https",
+				Value:       "https",
+				Aliases:     []string{"s"},
+				EnvVars:     []string{"ROCKETCHAT_URL_SCHEME"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.Channel,
+				Name:        "channel",
+				Aliases:     []string{"c"},
+				Usage:       "Channel names separated by comma ','",
+				EnvVars:     []string{"ROCKETCHAT_CHANNELS"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.Message,
+				Name:        "msg",
+				Usage:       "Message content",
+				EnvVars:     []string{"ROCKETCHAT_MESSAGE"},
+			},
+			&cli.StringFlag{
+				Destination: &rocketChatOpts.Title,
+				Name:        "title",
+				Value:       TimeValue,
+				Usage:       "Title of the message",
+				EnvVars:     []string{"ROCKETCHAT_TITLE"},
+			},
+		},
+		Action: func(ctx *cli.Context) error {
+			notifier := notify.New()
+
+			rocketChatSvc, err := rocketchat.New(rocketChatOpts.ServerURL, rocketChatOpts.Scheme,
+				rocketChatOpts.UserId, rocketChatOpts.Token)
+			if err != nil {
+				return err
+			}
+			chn := strings.Split(rocketChatOpts.Channel, ",")
+			for _, v := range chn {
+				if len(v) <= 0 {
+					return fmt.Errorf(EmptyChannel)
+				}
+
+				rocketChatSvc.AddReceivers(v)
+			}
+
+			notifier.UseServices(rocketChatSvc)
+
+			if err = notifier.Send(
+				context.Background(),
+				rocketChatOpts.Title,
+				rocketChatOpts.Message,
+			); err != nil {
+				return err
+			}
+			return nil
+		},
+	}
+}