# Plan — editable and deletable nodes

Ordered tasks for the `implement` stage. Inputs: `architecture/node-editing.md`,
stubs across the workspace, gates in `quality/node-editing.md`. Tests:
`devenv shell -- cargo test --workspace` (10 failing at plan time = the
target: 5 in tidaldy, 5 in cbd-tui). Use the session-local `CARGO_TARGET_DIR`
if `target/` contains artifacts owned by the repo owner.

## 1. Term-list mutations (tidaldy)

- [x] Implement `rename_search_term(old, new)`: under one write lock, if
      `new` already exists remove the `old` slot (merge); else if `old`
      exists replace it in place; else push `new` (stale-client
      forgiveness). Implement `remove_search_term(term)`: `retain`
      everything but `term`. Both poison-tolerant like
      `register_search_term`, no await under the lock. **Verify**:
      `rename_replaces_in_place_and_merges_duplicates` passes; gate "lock
      discipline".

## 2. Provider rename/delete (tidaldy)

- [x] `rename_lib_node`: trim new title → `InvalidInput` if empty;
      `parse_path(path)?` must be `TidalPath::SearchTerm(old)` else
      `NotSupported`; decode old term, `rename_search_term`, return
      `get_lib_node(join_path(parent, encode_segment(new)))`. **Verify**:
      `rename_rejects_empty_titles_and_foreign_paths` passes (validation
      before any network call).
- [x] `delete_lib_node`: `parse_path(path)?` must be `SearchTerm` else
      `NotSupported`; decode + `remove_search_term` (idempotent); return
      `get_lib_node(/tidal/search)`. **Verify**: `delete_rejects_foreign_paths`
      and `delete_removes_terms_idempotently_and_returns_the_parent` pass.
- [x] Flag term children in the `Search` arm of `get_lib_node`:
      `is_editable: true, is_deletable: true` via struct update. **Verify**:
      `search_node_lists_created_terms` passes (extended assertion).

## 3. Server handlers (crabidy-server)

- [x] Replace the `todo!()` bodies of `rpc.rs
      rename_library_node`/`delete_library_node`: record span fields,
      bounded(1) rendezvous with the matching `ProviderCommand`, map errors
      exactly like `create_library_node` (`NotSupported` →
      `failed_precondition` with an operation-specific message,
      `InvalidInput` → `invalid_argument`, rest → `internal`). **Verify**:
      gates "error mapping" + "bounded rendezvous"; `cargo check`.
      (Orchestrator routing and the command-loop arms were finalized at
      stub time — re-read them against the gate rather than re-doing them.)

## 4. TUI library accessors + marker (cbd-tui)

- [x] Implement `Library::selected_editable` / `selected_deletable` from
      `list_state.selected()` + the `UiItem` flags. **Verify**:
      `edit_opens_the_overlay_prefilled_only_on_editable_selections`,
      `delete_sends_only_for_deletable_selections`,
      `rename_submit_sends_the_trimmed_new_title`,
      `rename_cancels_and_emptied_buffers_send_nothing` pass (dispatch and
      overlay logic already landed with the stubs).
- [x] Render the `[e]`/`[d]`/`[ed]` suffix for modifiable items in
      `Library::render`, `COLOR_SECONDARY` like `[%]`. **Verify**:
      `modifiable_items_are_marked_and_the_rename_overlay_is_labelled`
      passes; gate "marked in UI".

## 5. TUI ↔ server wiring (cbd-tui)

- [x] `RpcClient::rename_library_node`: send the rpc, evict the old path and
      the parent (`crabidy_core::parent_path`), insert + return the renamed
      node. `delete_library_node`: send the rpc, evict the deleted path and
      the parent, insert + return the returned parent node. **Verify**: gate
      "cache eviction" (read; the cache is private, as with create).
- [x] `main.rs poll`: replace the `todo!()` arms — `RenameNode` calls
      `rename_library_node`, `DeleteNode` calls `delete_library_node`; on
      success `ReplaceLibraryNode(node)`, on failure `error!` and leave the
      UI unchanged. **Verify**: gate "failures never panic".

## 6. End-to-end + gates sweep

- [x] Exercise the full path against the live API if the local tidal config
      is available (create a term, rename it, delete it, confirm the parent
      listing and that a queued search track still resolves a URL); note the
      outcome in the summary. If unavailable, rely on the offline tests and
      say so.
- [x] Sweep: no `todo!()` left (workspace grep), fmt + clippy + tests green,
      every `quality/node-editing.md` box checked, docs updated where
      behavior shifted. Append the outcome + deviations to `plan/summary.md`.