defmodule Moon.Components.Button do
  @moduledoc false

  use Moon.StatelessComponent
  alias Moon.Icon
  alias Moon.Components.Loader

  prop(id, :string)
  prop(href, :string)

  # TODO, none variant was added so as not to break PreviewCodeButton component
  # Deprecate Link and None (they are not in Figma)
  prop(variant, :string,
    values: ["primary", "secondary", "tertiary", "ghost", "none"],
    default: "primary"
  )

  prop(size, :string, values: ["xs", "sm", "md", "lg", "xl"], default: "md")
  prop(full_width, :boolean)
  prop(progress, :boolean)
  prop(oops, :boolean)
  prop(success, :boolean)
  prop(pulse, :boolean)
  prop(disabled, :boolean)
  prop(no_hover_bg, :boolean, default: false)
  prop(type, :string, default: "button")
  prop(to, :string)
  prop(active_class_name, :string)
  prop(active_style, :string)
  prop(exact, :boolean)
  prop(string, :boolean)
  prop(is_active, :boolean)
  prop(location, :string)
  prop(style, :string)
  prop(class, :css_class)
  prop(form, :string)

  prop(on_click, :event)
  prop(value_name, :string)
  prop(value, :any)
  prop(values, :keyword, default: [])

  prop(left_icon, :string)
  prop(right_icon, :string)
  prop(icon_only, :string)

  prop(testid, :string)

  prop(animation, :string, values: ~w(progress success error pulse))

  slot(default)
  slot(right_icon_slot)
  slot(left_icon_slot)
  slot(icon_only_slot)

  prop(button_gap, :css_class, default: "gap-2")

  def render(assigns) do
    ~F"""
    <button
      id={@id}
      class={merge([
        [
          "flex justify-center items-center gap-2 relative overflow-hidden active:scale-90 transition-all font-semibold",
          "text-goten bg-piccolo": @variant in ["primary"],
          "border border-solid bg-transparent text-bulma border-trunks hover:border-bulma":
            @variant in ["secondary"],
          "bg-hit text-goten": @variant in ["tertiary"],
          "bg-transparent text-trunks hover:text-bulma": @variant in ["ghost"],
          "text-trunks hover:bg-hit-120 hover:text-piccolo": @variant in ["link"],
          "text-moon-12 h-8 px-2": @size == "xs" && slot_assigned?(:default),
          "text-moon-14 h-8 px-3": @size == "sm" && slot_assigned?(:default),
          "text-moon-14 h-10 px-4": @size == "md" && slot_assigned?(:default),
          "text-moon-16 h-12 px-5": @size == "lg" && slot_assigned?(:default),
          "text-moon-16 h-14 px-6": @size == "xl" && slot_assigned?(:default),
          "p-1": @size == "xs" && !slot_assigned?(:default),
          "p-1": @size == "sm" && !slot_assigned?(:default),
          "p-2": @size == "md" && !slot_assigned?(:default),
          "p-3": @size == "lg" && !slot_assigned?(:default),
          "p-4": @size == "xl" && !slot_assigned?(:default),
          "rounded-moon-s-xs": @size == "xs",
          "rounded-moon-s-sm": @size == "sm",
          "rounded-moon-s-sm": @size == "md",
          "rounded-moon-s-sm": @size == "lg",
          "rounded-moon-s-md": @size == "xl",
          "w-full bg-hit": @full_width && slot_assigned?(:right_icon_slot),
          "opacity-60": @disabled,
          "anim-pulse animate-[pulse2_1.5s_infinite]": @animation == "pulse",
          "bg-chichi text-goten animate-[error_0.82s_cubic-bezier(0.36,0.07,0.19,0.97)_1_both] anim-error":
            @animation == "error"
        ],
        @class
      ])}
      disabled={@disabled}
      type={@type}
      form={@form}
      data-size={@size}
      data-testid={@testid}
      :on-click={@on_click}
      :values={@values}
      {...phx_val_tag(@value_name || (@value && "click_value") || nil, @value)}
    >
      <span
        :if={@animation in ["success", "progress"]}
        class="flex absolute top-1/2 left-1/2 translate-y-[-50%] translate-x-[-50%] content-center justify-center"
      >
        {#if @animation == "progress"}
          <Loader color="currentColor" size="xs" />
        {#elseif @animation == "success"}
          <Icon name="generic_check_alternative" color="currentColor" class={icon_class(@size)} />
        {/if}
      </span>
      <span class={
        "flex justify-center items-center",
        @button_gap,
        "opacity-0": @animation in ["success", "progress"]
      }>
        {#if slot_assigned?(:icon_only_slot)}
          <#slot {@icon_only_slot} />
        {#elseif @icon_only != nil}
          <Icon name={@icon_only} class={icon_class(@size)} :if={@icon_only} />
        {#else}
          {#if slot_assigned?(:left_icon_slot)}
            <#slot {@left_icon_slot} />
          {#else}
            <Icon name={@left_icon} class={icon_class(@size)} :if={@left_icon} />
          {/if}
          <#slot />
          {#if slot_assigned?(:right_icon_slot)}
            <#slot {@right_icon_slot} />
          {#else}
            <Icon name={@right_icon} class={icon_class(@size)} :if={@right_icon} />
          {/if}
        {/if}
      </span>
      <span :if={!@no_hover_bg} class="block absolute inset-0 bg-transparent hover:bg-primary-hover" />
    </button>
    """
  end

  defp phx_val_tag(nil, _), do: []

  defp phx_val_tag(name, value) do
    # credo:disable-for-next-line Credo.Check.Warning.UnsafeToAtom
    key = String.to_atom("phx-value-#{name}")
    [{key, value}]
  end

  defp icon_class("xs"), do: "h-4 w-4"
  defp icon_class("sm"), do: "h-4 w-4"
  defp icon_class("md"), do: "h-6 w-6"
  defp icon_class("lg"), do: "h-6 w-6"
  defp icon_class("xl"), do: "h-6 w-6"
end