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package send
import (
"errors"
"fmt"
"io"
"log"
"os"
"strings"
"github.com/spf13/cobra"
"github.com/nicholas-fedor/shoutrrr/internal/dedupe"
internalUtil "github.com/nicholas-fedor/shoutrrr/internal/util"
"github.com/nicholas-fedor/shoutrrr/pkg/router"
"github.com/nicholas-fedor/shoutrrr/pkg/types"
"github.com/nicholas-fedor/shoutrrr/pkg/util"
cli "github.com/nicholas-fedor/shoutrrr/shoutrrr/cmd"
)
// MaximumNArgs defines the maximum number of arguments accepted by the command.
const (
MaximumNArgs = 2
MaxMessageLength = 100
)
// Cmd sends a notification using a service URL.
var Cmd = &cobra.Command{
Use: "send",
Short: "Send a notification using a service url",
Args: cobra.MaximumNArgs(MaximumNArgs),
PreRun: internalUtil.LoadFlagsFromAltSources,
RunE: Run,
}
func init() {
Cmd.Flags().BoolP("verbose", "v", false, "")
Cmd.Flags().StringArrayP("url", "u", []string{}, "The notification url")
_ = Cmd.MarkFlagRequired("url")
Cmd.Flags().
StringP("message", "m", "", "The message to send to the notification url, or - to read message from stdin")
_ = Cmd.MarkFlagRequired("message")
Cmd.Flags().StringP("title", "t", "", "The title used for services that support it")
}
func logf(format string, a ...any) {
fmt.Fprintf(os.Stderr, format+"\n", a...)
}
func run(cmd *cobra.Command) error {
flags := cmd.Flags()
verbose, _ := flags.GetBool("verbose")
urls, _ := flags.GetStringArray("url")
urls = dedupe.RemoveDuplicates(urls)
message, _ := flags.GetString("message")
title, _ := flags.GetString("title")
if message == "-" {
logf("Reading from STDIN...")
stringBuilder := strings.Builder{}
count, err := io.Copy(&stringBuilder, os.Stdin)
if err != nil {
return fmt.Errorf("failed to read message from stdin: %w", err)
}
logf("Read %d byte(s)", count)
message = stringBuilder.String()
}
var logger *log.Logger
if verbose {
urlsPrefix := "URLs:"
for i, url := range urls {
logf("%s %s", urlsPrefix, url)
if i == 0 {
// Only display "URLs:" prefix for first line, replace with indentation for the subsequent
urlsPrefix = strings.Repeat(" ", len(urlsPrefix))
}
}
logf("Message: %s", util.Ellipsis(message, MaxMessageLength))
if title != "" {
logf("Title: %v", title)
}
logger = log.New(os.Stderr, "SHOUTRRR ", log.LstdFlags)
} else {
logger = util.DiscardLogger
}
serviceRouter, err := router.New(logger, urls...)
if err != nil {
return cli.ConfigurationError(fmt.Sprintf("error invoking send: %s", err))
}
params := make(types.Params)
if title != "" {
params["title"] = title
}
errs := serviceRouter.SendAsync(message, ¶ms)
for err := range errs {
if err != nil {
return cli.TaskUnavailable(err.Error())
}
logf("Notification sent")
}
return nil
}
// Run executes the send command and handles its result.
func Run(cmd *cobra.Command, _ []string) error {
err := run(cmd)
if err != nil {
var result cli.Result
if errors.As(err, &result) && result.ExitCode != cli.ExUsage {
// If the error is not related to CLI usage, report error and exit to avoid cobra error output
_, _ = fmt.Fprintln(os.Stderr, err.Error())
os.Exit(result.ExitCode)
}
}
return err
}
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