defmodule LabelmakerWeb.LabelsControllerTest do
  use LabelmakerWeb.ConnCase, async: false

  @label_dir Path.join(:code.priv_dir(:labelmaker), "static/labels")

  setup do
    # Clean up test images before each test
    File.rm_rf!(@label_dir)
    File.mkdir_p!(@label_dir)
    :ok
  end

  describe "index" do
    test "renders empty state when no labels exist", %{conn: conn} do
      conn = get(conn, ~p"/labels")

      assert html_response(conn, 200) =~ "No labels generated yet"
      assert html_response(conn, 200) =~ "Create Your First Label"
    end

    test "lists all generated labels", %{conn: conn} do
      # Generate some test labels
      _conn1 = get(conn, ~p"/TestLabel1?color=red")
      _conn2 = get(conn, ~p"/TestLabel2?color=blue")
      _conn3 = get(conn, ~p"/TestLabel3?color=green")

      # Visit labels page
      conn = get(conn, ~p"/labels")
      html = html_response(conn, 200)

      assert html =~ "Generated Labels"
      assert html =~ "Showing 1-3 of 3 labels"
    end

    test "displays label information correctly", %{conn: conn} do
      # Generate a test label
      _conn = get(conn, ~p"/MyLabel?color=yellow&size=96")

      # Visit labels page
      conn = get(conn, ~p"/labels")
      html = html_response(conn, 200)

      # Should show size and modified date
      assert html =~ "Size:"
      assert html =~ "Modified:"
      assert html =~ "View Full Size"
    end

    test "shows labels sorted by most recent first", %{conn: conn} do
      # Generate labels with delays to ensure different timestamps
      _conn1 = get(conn, ~p"/First")
      Process.sleep(100)
      _conn2 = get(conn, ~p"/Second")
      Process.sleep(100)
      _conn3 = get(conn, ~p"/Third")

      # Visit labels page
      conn = get(conn, ~p"/labels")
      html = html_response(conn, 200)

      # Should show all labels
      assert html =~ "Showing 1-3 of 3 labels"
    end

    test "handles missing labels directory gracefully", %{conn: conn} do
      # Remove the labels directory entirely
      File.rm_rf!(@label_dir)

      conn = get(conn, ~p"/labels")

      assert html_response(conn, 200) =~ "No labels generated yet"
    end

    test "includes link back to home", %{conn: conn} do
      conn = get(conn, ~p"/labels")
      html = html_response(conn, 200)

      assert html =~ "Back to Home"
      assert html =~ ~p"/"
    end

    test "shows clickable URLs for each label", %{conn: conn} do
      _conn = get(conn, ~p"/ClickableTest")

      conn = get(conn, ~p"/labels")
      html = html_response(conn, 200)

      # Should have a URL input field
      assert html =~ "/labels/"
      assert html =~ ".png"
    end
  end
end