fix bug with kind being set to zero and replaced silently.

event.go

@@ -15,6 +15,7 @@ import (
 	"github.com/nbd-wtf/go-nostr/nip19"
 	"github.com/nbd-wtf/go-nostr/nson"
 	"github.com/urfave/cli/v2"
+	"golang.org/x/exp/slices"
 )
 
 const CATEGORY_EVENT_FIELDS = "EVENT FIELDS"
@@ -129,20 +130,20 @@ example:
 				Tags: make(nostr.Tags, 0, 3),
 			}
 
+			kindWasSupplied := true
 			mustRehashAndResign := false
 			if stdinEvent != "" {
 				if err := json.Unmarshal([]byte(stdinEvent), &evt); err != nil {
 					lineProcessingError(c, "invalid event received from stdin: %s", err)
 					continue
 				}
+				kindWasSupplied = strings.Contains(stdinEvent, `"kind"`)
 			}
+			kindWasSupplied = slices.Contains(c.FlagNames(), "kind")
 
-			if kind := c.Int("kind"); kind != 0 {
+			if kind := c.Int("kind"); kindWasSupplied {
 				evt.Kind = kind
 				mustRehashAndResign = true
-			} else if evt.Kind == 0 {
-				evt.Kind = 1
-				mustRehashAndResign = true
 			}
 
 			if content := c.String("content"); content != "" {

example_test.go

@@ -0,0 +1,31 @@
+package main
+
+func ExampleEventBasic() {
+	app.Run([]string{"nak", "event", "--ts", "1699485669"})
+	// Output:
+	// {"id":"36d88cf5fcc449f2390a424907023eda7a74278120eebab8d02797cd92e7e29c","pubkey":"79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","created_at":1699485669,"kind":1,"tags":[],"content":"hello from the nostr army knife","sig":"68e71a192e8abcf8582a222434ac823ecc50607450ebe8cc4c145eb047794cc382dc3f888ce879d2f404f5ba6085a47601360a0fa2dd4b50d317bd0c6197c2c2"}
+}
+
+func ExampleEventComplex() {
+	app.Run([]string{"nak", "event", "--ts", "1699485669", "-k", "11", "-c", "skjdbaskd", "--sec", "17", "-t", "t=spam", "-e", "36d88cf5fcc449f2390a424907023eda7a74278120eebab8d02797cd92e7e29c", "-t", "r=https://abc.def;nothing"})
+	// Output:
+	// {"id":"aec4de6d051a7c2b6ca2d087903d42051a31e07fb742f1240970084822de10a6","pubkey":"2fa2104d6b38d11b0230010559879124e42ab8dfeff5ff29dc9cdadd4ecacc3f","created_at":1699485669,"kind":11,"tags":[["t","spam"],["r","https://abc.def","nothing"],["e","36d88cf5fcc449f2390a424907023eda7a74278120eebab8d02797cd92e7e29c"]],"content":"skjdbaskd","sig":"1165ac7a27d774d351ef19c8e918fb22f4005fcba193976c3d7edba6ef87ead7f14467f376a9e199f8371835368d86a8506f591e382528d00287fb168a7b8f38"}
+}
+
+func ExampleReq() {
+	app.Run([]string{"nak", "req", "-k", "1", "-l", "18", "-a", "2fa2104d6b38d11b0230010559879124e42ab8dfeff5ff29dc9cdadd4ecacc3f", "-e", "aec4de6d051a7c2b6ca2d087903d42051a31e07fb742f1240970084822de10a6"})
+	// Output:
+	// ["REQ","nak",{"kinds":[1],"authors":["2fa2104d6b38d11b0230010559879124e42ab8dfeff5ff29dc9cdadd4ecacc3f"],"limit":18,"#e":["aec4de6d051a7c2b6ca2d087903d42051a31e07fb742f1240970084822de10a6"]}]
+}
+
+func ExampleEncodeNpub() {
+	app.Run([]string{"nak", "encode", "npub", "a6a67ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179822"})
+	// Output:
+	// npub156n8a7wuhwk9tgrzjh8gwzc8q2dlekedec5djk0js9d3d7qhnq3qjpdq28
+}
+
+func ExampleEncodeNprofile() {
+	app.Run([]string{"nak", "encode", "nprofile", "-r", "wss://example.com", "a6a67ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179822"})
+	// Output:
+	// nprofile1qqs2dfn7l8wthtz45p3ftn58pvrs9xlumvkuu2xet8egzkcklqtesgspz9mhxue69uhk27rpd4cxcefwvdhk6fl5jug
+}

helpers.go

@@ -39,6 +39,7 @@ func getStdinLinesOrFirstArgument(c *cli.Context) chan string {
 	if target != "" {
 		single := make(chan string, 1)
 		single <- target
+		close(single)
 		return single
 	}
 

main.go

@@ -7,8 +7,7 @@ import (
 	"github.com/urfave/cli/v2"
 )
 
-func main() {
-	app := &cli.App{
+var app = &cli.App{
 	Name:  "nak",
 	Usage: "the nostr army knife command-line tool",
 	Commands: []*cli.Command{
@@ -20,8 +19,9 @@ func main() {
 		encode,
 		verify,
 	},
-	}
+}
 
+func main() {
 	if err := app.Run(os.Args); err != nil {
 		fmt.Println(err)
 		os.Exit(1)