require "test_helper"

class RoomsControllerTest < ActionDispatch::IntegrationTest
  setup do
    sign_in :david
  end

  test "index redirects to the user's last room" do
    get rooms_url
    assert_redirected_to room_url(users(:david).rooms.last)
  end

  test "show" do
    get room_url(users(:david).rooms.last)
    assert_response :success
  end

  test "shows records the last room visited in a cookie" do
    get room_url(users(:david).rooms.last)
    assert response.cookies[:last_room] = users(:david).rooms.last.id
  end

  test "show renders a link preview written by hand without its off-scheme image and link" do
    room = rooms(:watercooler)
    post room_messages_url(room, format: :turbo_stream), params: { message: {
      body: link_preview_body(href: "javascript:alert(1)", url: "data:image/svg+xml;base64,PHN2Zy8+"),
      client_message_id: "hand-written-preview" } }
    assert_response :success

    get room_url(room)

    assert_response :success
    assert_no_match /javascript:alert/, response.body
    assert_no_match /data:image\/svg/, response.body
    assert_match "Free cookies", response.body
  end

  test "show renders a link preview written by hand without its image pointed at this Campfire" do
    room = rooms(:watercooler)
    own_url = room_url(room, host: "www.example.com")
    post room_messages_url(room, format: :turbo_stream), params: { message: {
      body: link_preview_body(href: own_url, url: own_url),
      client_message_id: "same-host-preview" } }
    assert_response :success

    get room_url(room)

    assert_response :success
    assert_no_match %r{<img src="#{Regexp.escape(own_url)}"}, response.body
    assert_no_match %r{<a rel="noreferrer" target="_blank" href="#{Regexp.escape(own_url)}"}, response.body
    assert_match "Free cookies", response.body
  end

  test "show renders an unfurled link preview" do
    room = rooms(:watercooler)
    post room_messages_url(room, format: :turbo_stream), params: { message: {
      body: link_preview_body(href: "https://example.com/page", url: "https://example.com/image.png"),
      client_message_id: "unfurled-preview" } }
    assert_response :success

    get room_url(room)

    assert_response :success
    assert_match %r{<img src="https://example\.com/image\.png"}, response.body
    assert_match %r{href="https://example\.com/page"}, response.body
  end

  test "destroy" do
    assert_turbo_stream_broadcasts :rooms, count: 1 do
      assert_difference -> { Room.count }, -1 do
        delete room_url(rooms(:designers))
      end
    end
  end

  test "destroy only allowed for creators or those who can administer" do
    sign_in :jz

    assert_no_difference -> { Room.count } do
      delete room_url(rooms(:designers))
      assert_response :forbidden
    end

    rooms(:designers).update! creator: users(:jz)

    assert_difference -> { Room.count }, -1 do
      delete room_url(rooms(:designers))
    end
  end

  private
    def link_preview_body(href:, url:)
      %(<div><action-text-attachment content-type="application/vnd.actiontext.opengraph-embed" ) +
        %(href="#{href}" url="#{url}" filename="Free cookies" caption="Cookies here"></action-text-attachment></div>)
    end
end