require "test_helper"

class Messages::ByBotsControllerTest < ActionDispatch::IntegrationTest
  setup do
    @room = rooms(:watercooler)
  end

  test "create" do
    assert_difference -> { Message.count }, +1 do
      post room_bot_messages_url(@room, users(:bender).bot_key), params: +"Hello Bot World!"
      assert_equal "Hello Bot World!", Message.last.plain_text_body
    end
  end

  test "create with UTF-8 content" do
    assert_difference -> { Message.count }, +1 do
      post room_bot_messages_url(@room, users(:bender).bot_key), params: +"Hello 👋!"
      assert_equal "Hello 👋!", Message.last.plain_text_body
    end
  end

  test "create file" do
    assert_difference -> { Message.count }, +1 do
      post room_bot_messages_url(@room, users(:bender).bot_key), params: { attachment: fixture_file_upload("moon.jpg", "image/jpeg") }
      assert Message.last.attachment.present?
    end
  end

  test "create does not trigger a webhook to the sending bot if it mentions itself" do
    body = "<div>Hey #{mention_attachment_for(:bender)}</div>"

    assert_no_enqueued_jobs only: Bot::WebhookJob do
      post room_bot_messages_url(@room, users(:bender).bot_key), params: body
    end
  end

  test "create does not trigger a webhook to the sending bot in a direct room" do
    assert_no_enqueued_jobs only: Bot::WebhookJob do
      post room_bot_messages_url(rooms(:bender_and_kevin), users(:bender).bot_key), params: +"Talking to myself again!"
    end
  end

  test "create without a body or attachment" do
    assert_no_difference -> { Message.count } do
      post room_bot_messages_url(@room, users(:bender).bot_key)
      assert_response :unprocessable_content

      post room_bot_messages_url(@room, users(:bender).bot_key), params: +"   "
      assert_response :unprocessable_content
    end
  end

  test "create can't be abused to post messages as any user" do
    user = users(:kevin)
    bot_key = "#{user.id}-"

    assert_no_difference -> { Message.count } do
      post room_bot_messages_url(rooms(:bender_and_kevin), bot_key), params: "Hello 👋!"
    end

    assert_response :redirect
  end

  test "index returns the room's messages in the order they were sent" do
    get room_bot_messages_url(@room, users(:bender).bot_key)
    assert_response :success

    json = JSON.parse(response.body)
    assert_equal @room.messages.ordered.map(&:id), json.map { it["id"] }
  end

  test "index includes message details" do
    post room_bot_messages_url(@room, users(:bender).bot_key), params: +"Hello from Bender!"

    get room_bot_messages_url(@room, users(:bender).bot_key)
    assert_response :success

    message = Message.last
    json_message = JSON.parse(response.body).last
    assert_equal message.id, json_message["id"]
    assert_equal "Hello from Bender!", json_message["body"]["plain_text"]
    assert_includes json_message["body"]["html"], "Hello from Bender!"
    assert_equal message.created_at.utc.iso8601(3), json_message["created_at"]
    assert_equal users(:bender).id, json_message["creator"]["id"]
    assert_equal "Bender Bot", json_message["creator"]["name"]
    assert_equal "bot", json_message["creator"]["role"]
    assert_equal @room.id, json_message["room"]["id"]
    assert_equal room_message_url(@room, message), json_message["url"]
  end

  test "index pages through older messages with the Link header" do
    (Message::PAGE_SIZE - @room.messages.count + 1).times do |i|
      @room.messages.create!(body: "Filler #{i}", creator: users(:jason), client_message_id: "filler-#{i}")
    end

    get room_bot_messages_url(@room, users(:bender).bot_key)
    assert_response :success

    json = JSON.parse(response.body)
    assert_equal Message::PAGE_SIZE, json.size
    assert_equal "41", response.headers["X-Total-Count"]
    assert_not_includes json.map { it["id"] }, messages(:fourth).id

    get response.headers["Link"][/<(.*)>/, 1]
    assert_response :success

    json = JSON.parse(response.body)
    assert_equal [ messages(:fourth).id ], json.map { it["id"] }
    assert_nil response.headers["Link"]
  end

  test "index pages newer messages with after" do
    get room_bot_messages_url(@room, users(:bender).bot_key, after: messages(:tenth).id)
    assert_response :success

    json = JSON.parse(response.body)
    assert_equal %i[ eleventh twelfth thirteenth ].map { messages(it).id }, json.map { it["id"] }
    assert_nil response.headers["Link"]
  end

  test "index in a room with no messages" do
    get room_bot_messages_url(rooms(:bender_and_kevin), users(:bender).bot_key)
    assert_response :success

    assert_equal [], JSON.parse(response.body)
    assert_equal "0", response.headers["X-Total-Count"]
    assert_nil response.headers["Link"]
  end

  test "index requires a valid bot key" do
    get room_bot_messages_url(@room, "invalid-bot-key")
    assert_response :redirect
  end

  test "index is not found for a room the bot is not a member of" do
    get room_bot_messages_url(rooms(:designers), users(:bender).bot_key)
    assert_response :not_found
  end

  test "create is not found for a room the bot is not a member of" do
    assert_no_difference -> { Message.count } do
      post room_bot_messages_url(rooms(:designers), users(:bender).bot_key), params: +"Hello!"
    end
    assert_response :not_found
  end

  test "regular messages index remains denied for bots" do
    get room_messages_url(@room, bot_key: users(:bender).bot_key)
    assert_response :forbidden
  end
end