defmodule Enguia do
  @moduledoc """
  Enguia — Animation library for Phoenix LiveView.

  Provides declarative CSS animations powered by the Web Animations API,
  with a simple Elixir DSL and a lightweight JavaScript hook.

  ## Quick Start

  Add to your `mix.exs`:

      {:enguia, "~> 0.1"}

  In your JavaScript entrypoint (`assets/js/app.js`):

      import EnguiaHook from "../../deps/enguia/priv/static/enguia.js"
      let liveSocket = new LiveSocket("/live", Socket, {
        hooks: { EnguiaHook }
      })

  In any LiveView or component:

      use Enguia

      # Then in HEEx:
      <.motion animate={fade_in()}>
        Hello, world!
      </.motion>

      <.motion animate={slide_up(trigger: :visible, delay: 100)} tag="section">
        Slides up when scrolled into view
      </.motion>

  ## `use Enguia`

  Calling `use Enguia` in a module imports both `Enguia.Components` and
  `Enguia.Presets`, giving you access to all preset helpers and the `<.motion>`
  component directly.

  ## Available Presets

  | Function | Default trigger |
  |---|---|
  | `fade_in/1` | `:mount` |
  | `fade_out/1` | `:mount` |
  | `slide_up/1` | `:visible` |
  | `slide_down/1` | `:visible` |
  | `slide_left/1` | `:visible` |
  | `slide_right/1` | `:visible` |
  | `scale_in/1` | `:mount` |
  | `scale_out/1` | `:mount` |
  | `shake/1` | `:mount` |
  | `pulse/1` | `:mount` (repeat: `:infinity`) |
  | `bounce/1` | `:mount` (repeat: `:infinity`) |

  ## Triggers

  - `:mount` — animates immediately when the component mounts
  - `:visible` — animates when scrolled into view (IntersectionObserver)
  - `:hover` — animates on mouse enter
  - `:click` — animates on click
  """

  defmacro __using__(_opts) do
    quote do
      import Enguia.Components
      import Enguia.Presets
      import Enguia.TextAnimations
    end
  end
end