defmodule ActionRequestsDemoWeb.ActionRequestsLiveTest do
  use ActionRequestsDemoWeb.ConnCase, async: true
  import Phoenix.LiveViewTest
  alias ActionRequestsDemo.Factory

  setup do
    # Seed 30 requests for pagination and filtering
    for i <- 1..30 do
      status = if rem(i, 2) == 0, do: "resolved", else: "unresolved"

      assignment =
        cond do
          rem(i, 3) == 0 -> nil
          rem(i, 3) == 1 -> 1
          true -> 2
        end

      Factory.insert_action_request(%{
        patient_name: "Patient #{i}",
        status: status,
        assigned_user_id: assignment
      })
    end

    :ok
  end

  describe "ActionRequestsLive" do
    test "renders the main view and shows the title", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      assert has_element?(view, "h1", "Action Requests")
    end

    test "shows filter form and table headers", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      assert has_element?(view, "form")
      assert has_element?(view, "th", "Patient Name")
      assert has_element?(view, "th", "Status")
      assert has_element?(view, "th", "Assigned To")
      assert has_element?(view, "th", "Created")
      assert has_element?(view, "th", "Delivery Scheduled")
    end

    test "pagination links are present and work", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      assert has_element?(view, "nav[aria-label=Pagination]")
      assert has_element?(view, "a", "Next")
      assert has_element?(view, "a", "Previous")
      # Click next page using the actual link element
      render_click(element(view, "a", "Next"))
      assert has_element?(view, "nav[aria-label=Pagination]")
    end

    test "status dropdown filter works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "resolved"})
      assert has_element?(view, "td", "resolved")
      refute has_element?(view, "td", "unresolved")
    end

    test "assignment dropdown filter works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{assignment: "unassigned"})
      assert has_element?(view, "td", "-")
    end

    test "fuzzy patient name search works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{patient_name: "Patient 2"})
      assert has_element?(view, "td", "Patient 2")
      # Should match Patient 20, Patient 21, etc.
      assert has_element?(view, "td", "Patient 20")
    end

    test "pagination displays correct records per page", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Default ordering is inserted_at: :desc, so page 1 shows Patient 30..6
      for i <- 30..6//-1 do
        assert has_element?(view, "td", "Patient #{i}")
      end

      # Page 2 should show Patient 5..1
      render_click(element(view, "a", "Next"))

      for i <- 5..1//-1 do
        assert has_element?(view, "td", "Patient #{i}")
      end
    end

    test "sorting by patient name ascending works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Click on Patient Name header to sort ascending
      view |> element("a", "Patient Name") |> render_click()
      # Should show Patient 1, Patient 10, Patient 11, etc. (alphabetical)
      assert has_element?(view, "td", "Patient 1")
      assert has_element?(view, "span", "↑")
    end

    test "sorting by patient name descending works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Click twice to get descending order
      view |> element("a", "Patient Name") |> render_click()
      view |> element("a", "Patient Name") |> render_click()
      assert has_element?(view, "span", "↓")
    end

    test "sorting by status works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      view |> element("a", "Status") |> render_click()
      # After sorting by status, should have a sort indicator
      assert has_element?(view, "span", "↑")
    end

    test "sorting by created date works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Default is descending, should show down arrow
      assert has_element?(view, "span", "↓")
      # Click to reverse
      view |> element("a", "Created") |> render_click()
      assert has_element?(view, "span", "↑")
    end

    test "sorting by delivery scheduled works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      view |> element("a", "Delivery Scheduled") |> render_click()
      assert has_element?(view, "span", "↑")
    end

    test "combining status filter with sorting works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/?status=resolved")
      view |> element("a", "Patient Name") |> render_click()
      # Should only show resolved items, sorted by name
      html = render(view)
      assert html =~ "bg-green-100 text-green-800"
      refute html =~ "bg-yellow-100 text-yellow-800"
      assert has_element?(view, "span", "↑")
    end

    test "combining multiple filters works", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/?status=resolved&assignment=assigned")
      # Should show only resolved AND assigned items
      html = render(view)
      assert html =~ "bg-green-100 text-green-800"
      refute html =~ "bg-yellow-100 text-yellow-800"
      # Should show User # but not unassigned items in the Assigned To column
      assert html =~ "User #"
    end

    test "mine filter shows only current user's assignments", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{assignment: "mine"})
      # Current user is set to 1 in mount
      html = render(view)
      assert html =~ "User #1"
      # Should not show User #2
      refute html =~ "User #2"
    end

    test "assigned filter shows all assigned items regardless of user", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{assignment: "assigned"})
      # Should show both User #1 and User #2
      html = render(view)
      assert html =~ "User #1"
      assert html =~ "User #2"
    end

    test "pagination metadata displays correctly", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Page 1 of 2, showing 25 of 30 records
      assert has_element?(view, "div", "Page 1 of 2")
      assert has_element?(view, "div", "showing 25 of 30 records")
    end

    test "pagination metadata updates after navigating", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_click(element(view, "a", "Next"))
      # Page 2 of 2, showing 5 of 30 records
      assert has_element?(view, "div", "Page 2 of 2")
      assert has_element?(view, "div", "showing 5 of 30 records")
    end

    test "pagination metadata updates with filters", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "resolved"})
      # Should show fewer total records
      assert has_element?(view, "div", "of 15 records")
    end

    test "status badge shows green for resolved", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "resolved"})
      html = render(view)
      assert html =~ "bg-green-100 text-green-800"
      assert html =~ "resolved"
    end

    test "status badge shows yellow for unresolved", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "unresolved"})
      html = render(view)
      assert html =~ "bg-yellow-100 text-yellow-800"
      assert html =~ "unresolved"
    end

    test "unassigned items show dash", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{assignment: "unassigned"})
      # Should show "-" for unassigned items
      assert has_element?(view, "td", "-")
    end

    test "clicking page number navigates to that page", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Click on page 2
      view |> element("a", "2") |> render_click()
      assert has_element?(view, "div", "Page 2 of 2")
    end

    test "clicking page 1 navigates to first page", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Go to page 2 first
      render_click(element(view, "a", "Next"))
      # Click on page 1
      view |> element("a", "1") |> render_click()
      assert has_element?(view, "div", "Page 1 of 2")
    end

    test "previous link is disabled on first page", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      html = render(view)
      assert html =~ "bg-gray-200 text-gray-500 cursor-not-allowed"
      assert html =~ "Previous"
    end

    test "next link is disabled on last page", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      # Navigate to last page
      render_click(element(view, "a", "Next"))
      html = render(view)
      # Next button should be disabled
      assert html =~ "bg-gray-200 text-gray-500 cursor-not-allowed"
      assert html =~ "Next"
    end

    test "filters persist through pagination", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "resolved"})
      render_click(element(view, "a", "Next"))
      # Should still show only resolved items
      assert has_element?(view, "td", "resolved")
      refute has_element?(view, "td", "unresolved")
    end

    test "sorting persists through pagination", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      view |> element("a", "Patient Name") |> render_click()
      render_click(element(view, "a", "Next"))
      # Should still show sort indicator
      assert has_element?(view, "span", "↑")
    end

    test "clearing patient name filter shows all results", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{patient_name: "Patient 2"})
      # Should show filtered results
      assert has_element?(view, "td", "Patient 2")
      # Clear filter
      render_change(view, "filter", %{patient_name: ""})
      # Should show all patients again
      assert has_element?(view, "td", "Patient 1")
      assert has_element?(view, "td", "Patient 30")
    end

    test "clearing status filter shows all statuses", %{conn: conn} do
      {:ok, view, _html} = live(conn, "/")
      render_change(view, "filter", %{status: "resolved"})
      refute has_element?(view, "td", "unresolved")
      # Clear filter
      render_change(view, "filter", %{status: ""})
      # Should show both statuses
      assert has_element?(view, "td", "resolved")
      assert has_element?(view, "td", "unresolved")
    end

    test "delivery scheduled date displays when present", %{conn: conn} do
      {:ok, _view, html} = live(conn, "/")
      # Most records should have delivery scheduled dates in the format YYYY-MM-DD HH:MM
      assert html =~ ~r/\d{4}-\d{2}-\d{2} \d{2}:\d{2}/
    end
  end
end