# Changelog

All notable changes to this project are documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

## [0.2.1] - 2026-10-03

### Changed

- Requires Mutare 0.5 (`{:mutare, "~> 0.5.0"}`) and `mutare_phoenix` 0.3.1.

## [0.2.0] - 2026-09-26

### Changed

- **Breaking: requires Mutare 0.4.1 and mutare_phoenix 0.3** (`{:mutare, "~> 0.4.1"}`,
  `{:mutare_phoenix, "~> 0.3"}`). Mutare 0.4.0 offers a pipe stage to a mutator as the
  direct call it is sugar for, and removed the pipe-mode API these families were built on;
  every family now produces through `mutate/1`, reading the socket at argument 0 whichever
  way the call was written.
- **A removed pipe stage collapses to the socket piped into it.** `s |> push_event("a", %{})`
  and `s |> attach_hook(:log, :handle_event, &h/3)` are diffed against `s`; a stage removed
  in the middle of a chain takes everything upstream of it along
  (`s |> push_event("a", %{}) |> assign(:x, 1)` shows `s |> push_event("a", %{})` → `s`).
  Through 0.1.0 such a stage read `push_event("a", %{})` → `Elixir.Function.identity()`.
  The `:lv_nav`, `:lv_stream` and `:lv_reply` diffs are unchanged: a mutant that keeps the
  piped socket is still reported at the stage alone.
- The `:lv_send_update` `immediate` replacement is parenthesized where it stands in for a
  `do:` value (`(send_update(Cart, id: 1)\n:erlang.make_ref())`), so the patched source is
  the program the mutant ran.

### Added

- `:lv_send_update` mutates a piped `send_update`/`send_update_after` (`pid |> send_update(Cart,
  id: 1)` → `:ok`). Such a call was left alone through 0.1.0, when its `:ok`/ref stand-in could
  not be delivered as a pipe stage; it is the same call as the direct spelling and now gets the
  same `remove` and `immediate` mutants, diffed over the whole pipe.

## [0.1.0] - 2026-09-07

Initial release.

### Added

- `Mutare.Phoenix.LiveView.Navigation` (`:lv_nav`) — swaps `push_navigate` ↔
  `push_patch` at the arity-2 form both share.
- `Mutare.Phoenix.LiveView.Reply` (`:lv_reply`) — drops a callback's optional
  trailing tuple element (`{:reply, payload, socket}` → `{:noreply, socket}`,
  `{:ok, socket, opts}` → `{:ok, socket}`), gated on the enclosing module's
  `Phoenix.LiveView` / `Phoenix.LiveComponent` behaviour.
- `Mutare.Phoenix.LiveView.Stream` (`:lv_stream`) — swaps `stream_insert` ↔
  `stream_delete` at the arity-3 form both share (`swap`); swaps
  `at: 0 ↔ at: -1` on `stream_insert/4` (`at` — prepend vs append; the
  covering rewrite supersedes core's integer leaves there via overlap
  pruning); drops the `limit:` entry of `stream/4` / `stream_insert/4`
  (`limit`). Dropping `reset: true` is omitted because it is equivalent to
  core's boolean flip.
- `Mutare.Phoenix.LiveView.Event` (`:lv_event`) — removes `push_event/3,4`,
  collapsing to the socket (or `Function.identity()` when piped, through 0.1.0).
- `Mutare.Phoenix.LiveView.SendUpdate` (`:lv_send_update`) — removes
  `send_update/2,3` / `send_update_after/3,4`, collapsing to a faithful
  stand-in (`:ok` / a fresh `make_ref()` for `_after`'s timer ref)
  (`remove`); and turns `send_update_after/3,4` into an *immediate*
  `send_update` that still yields a ref (`immediate` — deletes the delay).
  The delay argument is a marked `:timeout` position, so core's literal
  families skip it.
- `Mutare.Phoenix.LiveView.Hook` (`:lv_hook`) — removes `attach_hook/4`
  (`attach` — the hook never runs) and `detach_hook/3` (`detach` — the hook
  keeps running), collapsing to the socket. Hook name and stage atoms are
  routed `:raw`, so no core family mutates them.
- Registers the LiveView compile-time DSL (`live`/`live_session`, `on_mount`,
  `attr`/`slot`/`embed_templates`) as `:skip` through `Mutare.CallRouting`,
  so declarations that run once as mutant 0 are left unmutated.
- `Mutare.Phoenix.LiveView.all/0` for splicing the six families into a
  `:mutators` list, composing with `Mutare.Phoenix.all/0`.

[Unreleased]: https://github.com/foxbenjaminfox/mutare_phoenix_live_view/compare/v0.2.1...HEAD
[0.2.1]: https://github.com/foxbenjaminfox/mutare_phoenix_live_view/compare/v0.2.0...v0.2.1
[0.2.0]: https://github.com/foxbenjaminfox/mutare_phoenix_live_view/compare/v0.1.0...v0.2.0
[0.1.0]: https://github.com/foxbenjaminfox/mutare_phoenix_live_view/releases/tag/v0.1.0