From 57321aa9136293b24757a6695a5c92087af539ab Mon Sep 17 00:00:00 2001
From: DanConwayDev <DanConwayDev@protonmail.com>
Date: Wed, 1 Nov 2023 00:00:00 +0000
Subject: feat(prs-create) send to repo relays

fetch repository reference events to identify repository relays

send pr events to repository relays alongside user relays
---
 src/repo_ref.rs | 105 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 103 insertions(+), 2 deletions(-)

(limited to 'src/repo_ref.rs')

diff --git a/src/repo_ref.rs b/src/repo_ref.rs
index 3b0b1b4..a92b5b3 100644
--- a/src/repo_ref.rs
+++ b/src/repo_ref.rs
@@ -1,6 +1,12 @@
-use anyhow::{Context, Result};
+use anyhow::{bail, Context, Result};
 use nostr::Tag;
 
+#[cfg(not(test))]
+use crate::client::Client;
+use crate::client::Connect;
+#[cfg(test)]
+use crate::client::MockConnect;
+
 #[derive(Default)]
 pub struct RepoRef {
     pub name: String,
@@ -12,10 +18,43 @@ pub struct RepoRef {
     // code languages and hashtags
 }
 
+impl TryFrom<nostr::Event> for RepoRef {
+    type Error = anyhow::Error;
+
+    fn try_from(event: nostr::Event) -> Result<Self> {
+        if !event.kind.as_u64().eq(&REPO_REF_KIND) {
+            bail!("incorrect kind");
+        }
+        let mut r = Self::default();
+
+        if let Some(t) = event.tags.iter().find(|t| t.as_vec()[0].eq("name")) {
+            r.name = t.as_vec()[1].clone();
+        }
+
+        if let Some(t) = event.tags.iter().find(|t| t.as_vec()[0].eq("description")) {
+            r.description = t.as_vec()[1].clone();
+        }
+
+        if let Some(t) = event.tags.iter().find(|t| t.as_vec()[0].eq("d")) {
+            r.root_commit = t.as_vec()[1].clone();
+        }
+
+        r.relays = event
+            .tags
+            .iter()
+            .filter(|t| t.as_vec()[0].eq("relay"))
+            .map(|t| t.as_vec()[1].clone())
+            .collect();
+
+        Ok(r)
+    }
+}
+static REPO_REF_KIND: u64 = 300_317;
+
 impl RepoRef {
     pub fn to_event(&self, keys: &nostr::Keys) -> Result<nostr::Event> {
         nostr_sdk::EventBuilder::new(
-            nostr::event::Kind::Custom(30017),
+            nostr::event::Kind::Custom(REPO_REF_KIND),
             "",
             &[
                 vec![
@@ -36,6 +75,36 @@ impl RepoRef {
     }
 }
 
+pub async fn fetch(
+    root_commit: String,
+    #[cfg(test)] client: &MockConnect,
+    #[cfg(not(test))] client: &Client,
+    // TODO: more rubust way of finding repo events
+    relays: Vec<String>,
+) -> Result<RepoRef> {
+    // TODO: fetch relay information from file
+
+    let events: Vec<nostr::Event> = client
+        .get_events(
+            relays,
+            vec![
+                nostr::Filter::default()
+                    .kind(nostr::Kind::Custom(REPO_REF_KIND))
+                    .identifier(root_commit),
+            ],
+        )
+        .await?;
+
+    RepoRef::try_from(
+        events
+            .iter()
+            .filter(|e| e.kind.as_u64() == REPO_REF_KIND)
+            .max_by_key(|e| e.created_at)
+            .context("cannot find repository reference event")?
+            .clone(),
+    )
+}
+
 #[cfg(test)]
 mod tests {
     use test_utils::*;
@@ -52,6 +121,38 @@ mod tests {
         .to_event(&TEST_KEY_1_KEYS)
         .unwrap()
     }
+    mod try_from {
+        use super::*;
+
+        #[test]
+        fn name() {
+            assert_eq!(RepoRef::try_from(create()).unwrap().name, "test name",)
+        }
+
+        #[test]
+        fn description() {
+            assert_eq!(
+                RepoRef::try_from(create()).unwrap().description,
+                "test description",
+            )
+        }
+
+        #[test]
+        fn root_commit() {
+            assert_eq!(
+                RepoRef::try_from(create()).unwrap().root_commit,
+                "23471389461",
+            )
+        }
+
+        #[test]
+        fn relays() {
+            assert_eq!(
+                RepoRef::try_from(create()).unwrap().relays,
+                vec!["ws://relay1.io".to_string(), "ws://relay2.io".to_string()],
+            )
+        }
+    }
 
     mod to_event {
         use super::*;
-- 
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