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use anyhow::{Context, Result, bail};
use ngit::{
client::{Params, get_proposals_and_revisions_from_cache, send_events, sign_event},
git_events::{get_status, status_kinds},
};
use nostr::{EventBuilder, Tag, TagStandard, ToBech32, nips::nip19::Nip19};
use nostr_sdk::{EventId, FromBech32, Kind, nips::nip10::Marker};
use crate::{
client::{
Client, Connect, fetching_with_report, get_events_from_local_cache, get_repo_ref_from_cache,
},
git::{Repo, RepoActions},
login,
repo_ref::get_repo_coordinates_when_remote_unknown,
};
fn parse_event_id(id: &str) -> Result<EventId> {
if let Ok(nip19) = Nip19::from_bech32(id) {
match nip19 {
nostr::nips::nip19::Nip19::Event(e) => return Ok(e.event_id),
nostr::nips::nip19::Nip19::EventId(event_id) => return Ok(event_id),
_ => {}
}
}
if let Ok(event_id) = EventId::from_hex(id) {
return Ok(event_id);
}
bail!("invalid event-id or nevent: {id}")
}
#[allow(clippy::too_many_lines)]
async fn launch_status(id: &str, offline: bool, new_kind: Kind, action: &str) -> Result<()> {
let event_id = parse_event_id(id)?;
let git_repo = Repo::discover().context("failed to find a git repository")?;
let git_repo_path = git_repo.get_path()?;
let client = Client::new(Params::with_git_config_relay_defaults(&Some(&git_repo)));
let repo_coordinates = get_repo_coordinates_when_remote_unknown(&git_repo, &client).await?;
if !offline {
fetching_with_report(git_repo_path, &client, &repo_coordinates).await?;
}
let repo_ref = get_repo_ref_from_cache(Some(git_repo_path), &repo_coordinates).await?;
let proposals_and_revisions =
get_proposals_and_revisions_from_cache(git_repo_path, repo_ref.coordinates()).await?;
let proposal = proposals_and_revisions
.iter()
.find(|e| e.id == event_id)
.context(format!(
"PR with id {} not found in cache",
event_id.to_hex()
))?
.clone();
// Login to get signer and user pubkey
let (signer, user_ref, _) =
login::login_or_signup(&Some(&git_repo), &None, &None, Some(&client), true).await?;
let user_pubkey = signer.get_public_key().await?;
// Only author or maintainer may change status
if proposal.pubkey != user_pubkey && !repo_ref.maintainers.contains(&user_pubkey) {
bail!("only the PR author or a repository maintainer can {action} a PR");
}
// Fetch existing statuses to check current state
let statuses = {
let mut s = get_events_from_local_cache(
git_repo_path,
vec![
nostr::Filter::default()
.kinds(status_kinds().clone())
.events(proposals_and_revisions.iter().map(|e| e.id)),
nostr::Filter::default()
.custom_tags(
nostr::filter::SingleLetterTag::uppercase(nostr::filter::Alphabet::E),
proposals_and_revisions.iter().map(|e| e.id),
)
.kinds(status_kinds().clone()),
],
)
.await?;
s.sort_by_key(|e| e.created_at);
s.reverse();
s
};
let proposals_vec: Vec<nostr::Event> = proposals_and_revisions
.iter()
.filter(|e| !ngit::git_events::event_is_revision_root(e))
.cloned()
.collect();
let current_status = get_status(&proposal, &repo_ref, &statuses, &proposals_vec);
// Guard against no-op transitions
if current_status == new_kind {
let status_str = match new_kind {
Kind::GitStatusOpen => "open",
Kind::GitStatusClosed => "closed",
Kind::GitStatusDraft => "draft",
Kind::GitStatusApplied => "applied",
_ => "unknown",
};
println!("PR is already {status_str}");
return Ok(());
}
let alt_text = match new_kind {
Kind::GitStatusOpen => "PR reopened",
Kind::GitStatusClosed => "PR closed",
Kind::GitStatusDraft => "PR marked as draft",
Kind::GitStatusApplied => "PR applied/merged",
_ => "PR status updated",
};
// Build status event following the same pattern as push.rs
let mut public_keys: std::collections::HashSet<nostr::PublicKey> =
repo_ref.maintainers.iter().copied().collect();
public_keys.insert(proposal.pubkey);
let status_event = sign_event(
EventBuilder::new(new_kind, "").tags(
[
vec![
Tag::custom(
nostr::TagKind::Custom(std::borrow::Cow::Borrowed("alt")),
vec![alt_text.to_string()],
),
Tag::from_standardized(TagStandard::Event {
event_id: proposal.id,
relay_url: repo_ref.relays.first().cloned(),
marker: Some(Marker::Root),
public_key: None,
uppercase: false,
}),
],
public_keys.iter().map(|pk| Tag::public_key(*pk)).collect(),
repo_ref
.coordinates()
.iter()
.map(|c| {
Tag::from_standardized(TagStandard::Coordinate {
coordinate: c.coordinate.clone(),
relay_url: c.relays.first().cloned(),
uppercase: false,
})
})
.collect::<Vec<Tag>>(),
vec![Tag::from_standardized(nostr::TagStandard::Reference(
repo_ref.root_commit.to_string(),
))],
]
.concat(),
),
&signer,
format!("{action} PR"),
)
.await?;
let mut client = client;
client.set_signer(signer).await;
send_events(
&client,
Some(git_repo_path),
vec![status_event],
user_ref.relays.write(),
repo_ref.relays.clone(),
true,
false,
)
.await?;
println!(
"PR {} {}d: {}",
&event_id.to_hex()[..8],
action,
proposal.pubkey.to_bech32().unwrap_or_default()
);
Ok(())
}
pub async fn launch_close(id: &str, offline: bool) -> Result<()> {
launch_status(id, offline, Kind::GitStatusClosed, "close").await
}
pub async fn launch_reopen(id: &str, offline: bool) -> Result<()> {
launch_status(id, offline, Kind::GitStatusOpen, "reopen").await
}
pub async fn launch_ready(id: &str, offline: bool) -> Result<()> {
launch_status(id, offline, Kind::GitStatusOpen, "mark as ready").await
}
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