huskies: merge 872

server/src/crdt_state/mod.rs

@@ -53,7 +53,7 @@ pub use types::{
 };
 pub use write::{
     bump_retry_count, migrate_names_from_slugs, migrate_story_ids_to_numeric, name_from_story_id,
-    set_agent, set_qa_mode, set_retry_count, write_item,
+    set_agent, set_depends_on, set_qa_mode, set_retry_count, write_item,
 };
 
 #[cfg(test)]

server/src/crdt_state/write.rs

@@ -186,6 +186,32 @@ pub fn migrate_names_from_slugs() {
     slog!("[crdt] Migrated names for {count} items from story ID slugs");
 }
 
+/// Set the typed `depends_on` CRDT register for a pipeline item.
+///
+/// Encodes `deps` as a compact JSON array string (e.g. `"[837]"`) and writes it
+/// to the item's `depends_on` register.  An empty slice clears the register to an
+/// empty string, which means "no dependencies".
+///
+/// Returns `true` if the item was found and the op was applied, `false` otherwise.
+pub fn set_depends_on(story_id: &str, deps: &[u32]) -> bool {
+    let Some(state_mutex) = get_crdt() else {
+        return false;
+    };
+    let Ok(mut state) = state_mutex.lock() else {
+        return false;
+    };
+    let Some(&idx) = state.index.get(story_id) else {
+        return false;
+    };
+    let value = if deps.is_empty() {
+        String::new()
+    } else {
+        serde_json::to_string(deps).unwrap_or_default()
+    };
+    apply_and_persist(&mut state, |s| s.crdt.doc.items[idx].depends_on.set(value));
+    true
+}
+
 /// Set the `agent` field for a pipeline item by its story ID.
 ///
 /// `Some(name)` writes the agent name into the CRDT register.
@@ -715,6 +741,63 @@ mod tests {
         migrate_names_from_slugs();
     }
 
+    // ── set_depends_on regression tests ──────────────────────────────────────
+
+    #[test]
+    fn set_depends_on_round_trip_and_clear() {
+        use super::super::read::{check_unmet_deps_crdt, read_item};
+        init_for_test();
+
+        write_item(
+            "872_test_target",
+            "1_backlog",
+            Some("Target"),
+            None,
+            None,
+            None,
+            None,
+            None,
+            None,
+            None,
+        );
+
+        // Set depends_on to [837] and verify CRDT register holds the list.
+        let ok = set_depends_on("872_test_target", &[837]);
+        assert!(ok, "set_depends_on should return true for known item");
+        let view = read_item("872_test_target").unwrap();
+        assert_eq!(
+            view.depends_on,
+            Some(vec![837]),
+            "CRDT register should hold [837]"
+        );
+
+        // Clear by passing an empty slice.
+        let ok = set_depends_on("872_test_target", &[]);
+        assert!(ok, "set_depends_on([]) should return true");
+        let view = read_item("872_test_target").unwrap();
+        assert_eq!(
+            view.depends_on, None,
+            "clearing should leave register unset"
+        );
+
+        // Auto-assigner sees no unmet dependency after clearing.
+        let unmet = check_unmet_deps_crdt("872_test_target");
+        assert!(
+            unmet.is_empty(),
+            "after clearing deps, auto-assigner should see no unmet dependencies"
+        );
+    }
+
+    #[test]
+    fn set_depends_on_returns_false_for_unknown_story() {
+        init_for_test();
+        let ok = set_depends_on("nonexistent_story_872", &[1, 2, 3]);
+        assert!(
+            !ok,
+            "set_depends_on should return false for unknown story_id"
+        );
+    }
+
     // ── set_agent tests ──────────────────────────────────────────────────────
 
     #[test]