refactor: add struct `RepoState`

to more easily access state details

1 files changed, 33 insertions, 0 deletions

diff --git a/src/repo_state.rs b/src/repo_state.rs
new file mode 100644
index 0000000..33bc90f
--- /dev/null
+++ b/src/repo_state.rs
@@ -0,0 +1,33 @@
+use anyhow::{Context, Result};
+use git2::Oid;
+
+pub struct RepoState {
+    pub state: Vec<(String, String)>,
+    pub event: nostr::Event,
+}
+
+impl RepoState {
+    pub fn try_from(mut state_events: Vec<nostr::Event>) -> Result<Self> {
+        state_events.sort_by_key(|e| e.created_at);
+        let event = state_events.first().context("no state events")?;
+        let mut state = vec![];
+        for tag in &event.tags {
+            if let Some(name) = tag.as_vec().first() {
+                if ["refs/heads/", "refs/tags", "HEAD"]
+                    .iter()
+                    .any(|s| name.starts_with(*s))
+                {
+                    if let Some(value) = tag.as_vec().get(1) {
+                        if Oid::from_str(value).is_ok() {
+                            state.push((name.to_owned(), value.to_owned()));
+                        }
+                    }
+                }
+            }
+        }
+        Ok(RepoState {
+            state,
+            event: event.clone(),
+        })
+    }
+}