Alert

Alert component for notifications and messages

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Source Code

defmodule FeenixUiWeb.Components.AlertComponent do
  use Phoenix.Component

  def render(assigns) do
    assigns = assign_new(assigns, :type, fn -> "info" end)
    assigns = assign_new(assigns, :title, fn -> nil end)
    assigns = assign_new(assigns, :message, fn -> "Alert message" end)
    assigns = assign_new(assigns, :dismissible, fn -> false end)

    assigns = assign(assigns, :alert_classes, get_alert_classes(assigns.type))
    assigns = assign(assigns, :icon, get_alert_icon(assigns.type))

    ~H"""
    <div class={@alert_classes} role="alert">
      <div class="flex">
        <div class="flex-shrink-0">
          <%= @icon %>
        </div>
        <div class="ml-3">
          <%= if @title do %>
            <h3 class="text-sm font-medium">
              <%= @title %>
            </h3>
          <% end %>
          <div class={if @title, do: "mt-2 text-sm", else: "text-sm"}>
            <p><%= @message %></p>
          </div>
        </div>
        <%= if @dismissible do %>
          <div class="ml-auto pl-3">
            <div class="-mx-1.5 -my-1.5">
              <button type="button" class="inline-flex rounded-md p-1.5 focus:outline-none focus:ring-2 focus:ring-offset-2">
                <span class="sr-only">Dismiss</span>
                <svg class="h-5 w-5" viewBox="0 0 20 20" fill="currentColor">
                  <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd" />
                </svg>
              </button>
            </div>
          </div>
        <% end %>
      </div>
    </div>
    """
  end

  defp get_alert_classes(type) do
    base_classes = "rounded-md p-4"

    type_classes = case type do
      "success" -> "bg-success-50 border border-success-200"
      "warning" -> "bg-warning-50 border border-warning-200"
      "danger" -> "bg-danger-50 border border-danger-200"
      "info" -> "bg-info-50 border border-info-200"
      _ -> "bg-info-50 border border-info-200"
    end

    "#{base_classes} #{type_classes}"
  end

  defp get_alert_icon(type) do
    icon_classes = case type do
      "success" -> "h-5 w-5 text-success-400"
      "warning" -> "h-5 w-5 text-warning-400"
      "danger" -> "h-5 w-5 text-danger-400"
      "info" -> "h-5 w-5 text-info-400"
      _ -> "h-5 w-5 text-info-400"
    end

    assigns = %{icon_classes: icon_classes}

    case type do
      "success" ->
        ~H"""
        <svg class={@icon_classes} viewBox="0 0 20 20" fill="currentColor">
          <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd" />
        </svg>
        """
      "warning" ->
        ~H"""
        <svg class={@icon_classes} viewBox="0 0 20 20" fill="currentColor">
          <path fill-rule="evenodd" d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z" clip-rule="evenodd" />
        </svg>
        """
      "danger" ->
        ~H"""
        <svg class={@icon_classes} viewBox="0 0 20 20" fill="currentColor">
          <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd" />
        </svg>
        """
      _ ->
        ~H"""
        <svg class={@icon_classes} viewBox="0 0 20 20" fill="currentColor">
          <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd" />
        </svg>
        """
    end
  end
end