feat: add user written notes retrieval

Signed-off-by: r3drun3 <simone.ragonesi@sighup.io>

.gitignore

@@ -6,6 +6,7 @@
 
 #dev
 example_output.json
+user_written_notes.json
 user_tagged_notes.json
 user_reposted_notes.json
 user_received_direct_messages.json

README.md

@@ -105,19 +105,26 @@ PAYMENTSURL:  https://relay.nostrview.com/invoices
   <summary>Retrieve from the specified relay the last 300 direct messages that the specified user received</summary>
 
 ```console
-nostro dm --userreceived npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nostr.wine
+nostro dm --userreceived npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nos.lol
 returned events saved to user_received_direct_messages.json
 ```
 </details>  
 
+<details>
+  <summary>Retrieve from the specified relay the last 300 notes that the specified user wrote</summary>
 
+```console
+nostro notes --userwritten npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nos.lol
+returned events saved to user_written_notes.json
+```
+</details>  
 
 
 <details>
   <summary>Retrieve from the specified relay the last 300 notes in which the specified user has been tagged</summary>
 
 ```console
-nostro notes --usertagged npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nostr.wine
+nostro notes --usertagged npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nos.lol
 returned events saved to user_tagged_notes.json
 ```  
 </details>  
@@ -126,7 +133,7 @@ returned events saved to user_tagged_notes.json
   <summary>Retrieve from the specified relay the last 300 notes from the specified user that have been reposted</summary>
 
 ```console
-nostro notes --userreposted npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nostr.wine
+nostro notes --userreposted npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nos.lol
 returned events saved to user_reposted_notes.json
 ```  
 </details>
@@ -136,7 +143,7 @@ returned events saved to user_reposted_notes.json
   <summary>Retrieve from the specified relay the last 300 reaction received by notes from the specified user</summary>
 
 ```console
-nostro notes --userreacted npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nostr.wine
+nostro notes --userreacted npub1rusgp3upyrtpsy2pcqznl6e8hejg9ne8u2eg05gzc4n2cctsugksvcx2np nos.lol
 returned events saved to user_reacted_notes.json
 ```  
 </details>

internal/commands/notes.go

@@ -15,6 +15,7 @@ import (
 var notesUserTagged bool
 var notesUserReposted bool
 var notesUserReacted bool
+var notesUserWritten bool
 
 var NotesCmd = &cobra.Command{
 	Use:   "notes",
@@ -180,6 +181,60 @@ var NotesCmd = &cobra.Command{
 			} else {
 				panic(err)
 			}
+		} else if notesUserWritten {
+			if len(args) != 2 {
+				return fmt.Errorf("user npbu key and relay name are required")
+			}
+			npub := args[0]
+			url := args[1]
+			// connect to relay
+			ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+			relay, err := nostr.RelayConnect(ctx, url)
+			if err != nil {
+				panic(err)
+			}
+			// create filters
+			var filters nostr.Filters
+			if _, v, err := nip19.Decode(npub); err == nil {
+				t := make(map[string][]string)
+				// making a "p" tag for the above public key.
+				// this filters for messages tagged with the user, mainly replies.
+				t["p"] = []string{v.(string)}
+				filters = []nostr.Filter{{
+					Kinds:   []int{int(nostr.KindTextNote)},
+					Authors: []string{v.(string)},
+					//Tags:  t,
+					Limit: 300,
+				}}
+			} else {
+				panic("not a valid npub!")
+			}
+			// create a subscription and submit to relay
+			// results will be returned on the sub.Events channel
+			sub, _ := relay.Subscribe(ctx, filters)
+
+			// we will append the returned events to this slice
+			evs := make([]nostr.Event, 0)
+
+			go func() {
+				<-sub.EndOfStoredEvents
+				cancel()
+			}()
+			for ev := range sub.Events {
+				evs = append(evs, *ev)
+			}
+
+			filename := "user_written_notes.json"
+			if f, err := os.Create(filename); err == nil {
+				fmt.Fprintf(os.Stderr, "returned events saved to %s\n", filename)
+				// encode the returned events in a file
+				enc := json.NewEncoder(f)
+				enc.SetIndent("", " ")
+				enc.Encode(evs)
+				f.Close()
+			} else {
+				panic(err)
+			}
 		} else {
 			cmd.Help()
 		}
@@ -191,4 +246,5 @@ func init() {
 	NotesCmd.Flags().BoolVarP(&notesUserTagged, "usertagged", "", false, "Retrieve from the specified relay the last 300 notes in which the specified user has been tagged.")
 	NotesCmd.Flags().BoolVarP(&notesUserReposted, "userreposted", "", false, "Retrieve from the specified relay the last 300 notes from the specified user that have been reposted.")
 	NotesCmd.Flags().BoolVarP(&notesUserReacted, "userreacted", "", false, "Retrieve from the specified relay the last 300 reaction received by notes from the specified user.")
+	NotesCmd.Flags().BoolVarP(&notesUserWritten, "userwritten", "", false, "Retrieve from the specified relay the last 300 notes written by the specified user.")
 }