feat: New reply command

Signed-off-by: Awiteb <a@4rs.nl>

src/cli/mod.rs

@@ -18,6 +18,8 @@
 mod issue;
 /// CLI arguments parsers
 pub mod parsers;
+/// 'reply` command
+mod reply;
 /// `repo` subcommands
 mod repo;
 /// CLI traits
@@ -30,9 +32,10 @@ use clap_verbosity_flag::Verbosity;
 use nostr::key::Keys;
 use nostr::{PublicKey, RelayUrl, SecretKey};
 
-pub use self::issue::IssueSubcommands;
+use self::issue::IssueSubcommands;
-pub use self::repo::RepoSubcommands;
+use self::reply::ReplyArgs;
-pub use self::traits::CommandRunner;
+use self::repo::RepoSubcommands;
+use self::traits::CommandRunner;
 use crate::error::N34Result;
 
 /// Header message, used in the help message
@@ -100,6 +103,8 @@ pub enum Commands {
     //     #[command(subcommand)]
     //     subcommands: PatchSubcommands,
     // },
+    /// Reply to issues and patches.
+    Reply(ReplyArgs),
 }
 
 impl Cli {
@@ -116,6 +121,7 @@ impl CommandRunner for Commands {
         match self {
             Self::Repo { subcommands } => subcommands.run(options).await,
             Self::Issue { subcommands } => subcommands.run(options).await,
+            Commands::Reply(args) => args.run(options).await,
         }
     }
 }

src/cli/reply.rs

@@ -0,0 +1,178 @@
+// n34 - A CLI to interact with NIP-34 and other stuff related to codes in nostr
+// Copyright (C) 2025 Awiteb <a@4rs.nl>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
+
+use std::str::FromStr;
+
+use clap::{ArgGroup, Args};
+use nostr::{
+    event::{EventBuilder, EventId, Kind, Tag},
+    filter::Filter,
+    nips::nip19::{self, FromBech32, Nip19Coordinate},
+    types::RelayUrl,
+};
+
+use super::{CliOptions, CommandRunner, parsers};
+use crate::{
+    error::{N34Error, N34Result},
+    nostr_utils::{NostrClient, utils},
+};
+
+/// Parses and represents a Nostr `nevent1` or `note1`.
+#[derive(Debug, Clone)]
+struct NostrEvent {
+    /// Unique identifier for the event.
+    event_id: EventId,
+    /// List of relay URLs associated with the event. Empty if parsing a
+    /// `note1`.
+    relays:   Vec<RelayUrl>,
+}
+
+impl NostrEvent {
+    /// Create a new [`NostrEvent`] instance
+    fn new(event_id: EventId, relays: Vec<RelayUrl>) -> Self {
+        Self { event_id, relays }
+    }
+}
+
+impl FromStr for NostrEvent {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        if s.trim().starts_with("nevent1") {
+            let event = nip19::Nip19Event::from_bech32(s).map_err(|e| e.to_string())?;
+            Ok(Self::new(event.event_id, event.relays))
+        } else if s.trim().starts_with("note1") {
+            Ok(Self::new(
+                EventId::from_bech32(s).map_err(|e| e.to_string())?,
+                Vec::new(),
+            ))
+        } else {
+            Err("Invalid event id, must starts with `note1` or `nevent1`".to_owned())
+        }
+    }
+}
+
+
+/// Arguments for the `reply` command
+#[derive(Args, Debug)]
+#[clap(
+    group(
+        ArgGroup::new("comment-content")
+            .args(["comment", "editor"])
+            .required(true)
+    )
+)]
+pub struct ReplyArgs {
+    /// The issue, patch, or comment to reply to
+    #[arg(long)]
+    to:      NostrEvent,
+    /// Repository address
+    #[arg(short, long, value_parser = parsers::repo_naddr)]
+    naddr:   Option<Nip19Coordinate>,
+    /// The comment (cannot be used with --editor)
+    #[arg(short, long)]
+    comment: Option<String>,
+    /// Open editor to write comment (cannot be used with --content)
+    #[arg(short, long)]
+    editor:  bool,
+}
+
+impl CommandRunner for ReplyArgs {
+    async fn run(self, options: CliOptions) -> N34Result<()> {
+        let client = NostrClient::init(&options).await;
+        let user_pubk = options.pubkey().await?;
+        let relays_list = client.user_relays_list(user_pubk).await?;
+        let mut write_relays =
+            utils::add_write_relays(options.relays.clone(), relays_list.as_ref());
+        client.add_relays(&options.relays).await;
+        client.add_relays(&self.to.relays).await;
+
+        if let Some(ref naddr) = self.naddr {
+            client.add_relays(&naddr.relays).await;
+        }
+
+        let reply_to = client
+            .fetch_event(Filter::new().id(self.to.event_id))
+            .await?
+            .ok_or(N34Error::EventNotFound)?;
+        let root = client.find_root(reply_to.clone()).await?;
+
+
+        let repo_naddr = if let Some(naddr) = self.naddr {
+            naddr.coordinate
+        } else if let Some(ref root_event) = root {
+            root_event
+                .tags
+                .coordinates()
+                .find(|c| c.kind == Kind::GitRepoAnnouncement)
+                .ok_or_else(|| {
+                    N34Error::InvalidEvent(
+                        "The Git issue/patch does not specify a target repository".to_owned(),
+                    )
+                })?
+                .clone()
+        } else {
+            return Err(N34Error::NotFoundRepo);
+        };
+
+        let repo = client.fetch_repo(&repo_naddr).await?;
+        write_relays.extend(repo.relays.clone());
+
+        write_relays = client
+            .read_relays_from_user(write_relays, reply_to.pubkey)
+            .await;
+        if let Some(root_event) = &root {
+            write_relays = client
+                .read_relays_from_user(write_relays, root_event.pubkey)
+                .await;
+        }
+
+        let content = utils::get_content(self.comment.as_ref(), ".txt")?;
+        let content_details = client.parse_content(&content).await;
+        write_relays.extend(content_details.write_relays.clone());
+
+        let event = EventBuilder::comment(
+            content,
+            &reply_to,
+            root.as_ref(),
+            repo.relays.first().cloned(),
+        )
+        .tag(Tag::public_key(repo_naddr.public_key))
+        .tags(content_details.into_tags())
+        .pow(options.pow)
+        .build(user_pubk);
+
+        let event_id = event.id.expect("There is an id");
+        let author_read_relays = utils::add_read_relays(Vec::new(), relays_list.as_ref());
+
+        tracing::trace!(relays = ?write_relays, "Write relays list");
+        let (success, ..) = futures::join!(
+            client.send_event_to(event, relays_list.as_ref(), &write_relays),
+            client.broadcast(&reply_to, &author_read_relays),
+            async {
+                if let Some(root_event) = root {
+                    let _ = client.broadcast(&root_event, &author_read_relays).await;
+                }
+            },
+        );
+
+
+        let nevent = utils::new_nevent(event_id, &success?)?;
+        println!("Comment created: {nevent}");
+
+        Ok(())
+    }
+}