defmodule ComponentsElixirWeb.LoginLive do
  use ComponentsElixirWeb, :live_view

  alias ComponentsElixir.Auth

  @impl true
  def mount(_params, session, socket) do
    # If already authenticated, redirect to components
    if Map.get(session, "authenticated") do
      {:ok, socket |> push_navigate(to: ~p"/")}
    else
      {:ok,
       socket
       |> assign(:session, session)
       |> assign(:error_message, nil)
       |> assign(:form, to_form(%{"password" => ""}))}
    end
  end

  @impl true
  def handle_event("login", %{"password" => password}, socket) do
    case Auth.authenticate(password) do
      {:ok, :authenticated} ->
        # Store authentication in a cookie that the server can read
        {:noreply,
         socket
         |> put_flash(:info, "Successfully logged in!")
         |> push_navigate(to: "/login/authenticate?password=#{URI.encode(password)}")}

      {:error, :invalid_credentials} ->
        {:noreply,
         socket
         |> assign(:error_message, "Invalid password")
         |> assign(:form, to_form(%{"password" => ""}))}
    end
  end

  @impl true
  def render(assigns) do
    ~H"""
    <div class="min-h-screen flex items-center justify-center bg-base-200 py-12 px-4 sm:px-6 lg:px-8">
      <div class="max-w-md w-full space-y-8">
        <div>
          <h2 class="mt-6 text-center text-3xl font-extrabold text-base-content">
            Components Inventory
          </h2>
          <p class="mt-2 text-center text-sm text-base-content/70">
            Please enter your password to continue
          </p>
        </div>

        <.form for={@form} phx-submit="login" class="mt-8 space-y-6">
          <div>
            <label for="password" class="sr-only">Password</label>
            <input
              id="password"
              name="password"
              type="password"
              required
              class="appearance-none rounded-md relative block w-full px-3 py-2 border border-base-300 placeholder-base-content/50 text-base-content bg-base-100 focus:outline-none focus:ring-primary focus:border-primary focus:z-10 sm:text-sm"
              placeholder="Password"
              autocomplete="current-password"
              value={@form[:password].value}
            />
          </div>

          <%= if @error_message do %>
            <div class="text-red-600 text-sm text-center">
              <%= @error_message %>
            </div>
          <% end %>

          <div>
            <button
              type="submit"
              class="group relative w-full flex justify-center py-2 px-4 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500"
            >
              Sign in
            </button>
          </div>
        </.form>
      </div>
    </div>
    """
  end
end