defmodule MvWeb.UserLive.IndexTest do
  use MvWeb.ConnCase, async: true
  import Phoenix.LiveViewTest

  describe "basic functionality" do
    test "shows translated title in German", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      conn = Plug.Test.init_test_session(conn, locale: "de")
      {:ok, _view, html} = live(conn, "/users")
      assert html =~ "Benutzer*innen auflisten"
    end

    test "shows translated title in English", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      Gettext.put_locale(MvWeb.Gettext, "en")
      {:ok, _view, html} = live(conn, "/users")
      assert html =~ "Listing Users"
    end

    test "shows New User button", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")
      assert html =~ "New User"
    end

    test "displays users in a table", %{conn: conn} do
      # Create test users
      _user1 = create_test_user(%{email: "alice@example.com", oidc_id: "alice123"})
      _user2 = create_test_user(%{email: "bob@example.com", oidc_id: "bob456"})

      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ "alice@example.com"
      assert html =~ "bob@example.com"
      assert html =~ "alice123"
      assert html =~ "bob456"
    end

    test "shows correct action links", %{conn: conn} do
      user = create_test_user(%{email: "test@example.com"})
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ "Edit"
      assert html =~ "Delete"
      assert html =~ ~r/href="[^"]*\/users\/#{user.id}\/edit"/
    end
  end

  describe "sorting functionality" do
    setup do
      # Create users with different emails for sorting tests
      user_a = create_test_user(%{email: "alpha@example.com", oidc_id: "alpha"})
      user_z = create_test_user(%{email: "zulu@example.com", oidc_id: "zulu"})
      user_m = create_test_user(%{email: "mike@example.com", oidc_id: "mike"})

      %{users: [user_a, user_z, user_m]}
    end

    test "initially sorts by email ascending", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      # Should show ascending indicator (up arrow)
      assert html =~ "hero-chevron-up"
      assert html =~ ~s(aria-sort="ascending")

      # Test actual sort order: alpha should appear before mike, mike before zulu
      alpha_pos = html |> :binary.match("alpha@example.com") |> elem(0)
      mike_pos = html |> :binary.match("mike@example.com") |> elem(0)
      zulu_pos = html |> :binary.match("zulu@example.com") |> elem(0)

      assert alpha_pos < mike_pos, "alpha@example.com should appear before mike@example.com"
      assert mike_pos < zulu_pos, "mike@example.com should appear before zulu@example.com"
    end

    test "can sort email descending by clicking sort button", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Click on email sort button and get rendered result
      html = view |> element("button[phx-value-field='email']") |> render_click()

      # Should now show descending indicator (down arrow)
      assert html =~ "hero-chevron-down"
      assert html =~ ~s(aria-sort="descending")

      # Test actual sort order reversed: zulu should now appear before mike, mike before alpha
      alpha_pos = html |> :binary.match("alpha@example.com") |> elem(0)
      mike_pos = html |> :binary.match("mike@example.com") |> elem(0)
      zulu_pos = html |> :binary.match("zulu@example.com") |> elem(0)

      assert zulu_pos < mike_pos,
             "zulu@example.com should appear before mike@example.com when sorted desc"

      assert mike_pos < alpha_pos,
             "mike@example.com should appear before alpha@example.com when sorted desc"
    end

    test "toggles back to ascending when clicking sort button twice", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Click twice to toggle: asc -> desc -> asc
      view |> element("button[phx-value-field='email']") |> render_click()
      html = view |> element("button[phx-value-field='email']") |> render_click()

      # Should be back to ascending
      assert html =~ "hero-chevron-up"
      assert html =~ ~s(aria-sort="ascending")

      # Should be back to original ascending order
      alpha_pos = html |> :binary.match("alpha@example.com") |> elem(0)
      mike_pos = html |> :binary.match("mike@example.com") |> elem(0)
      zulu_pos = html |> :binary.match("zulu@example.com") |> elem(0)

      assert alpha_pos < mike_pos, "Should be back to ascending: alpha before mike"
      assert mike_pos < zulu_pos, "Should be back to ascending: mike before zulu"
    end

    test "shows sort direction icons", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Initially ascending - should show up arrow
      html = render(view)
      assert html =~ "hero-chevron-up"

      # After clicking, should show down arrow
      view |> element("button[phx-value-field='email']") |> render_click()
      html = render(view)
      assert html =~ "hero-chevron-down"
    end
  end

  describe "checkbox selection functionality" do
    setup do
      user1 = create_test_user(%{email: "user1@example.com", oidc_id: "user1"})
      user2 = create_test_user(%{email: "user2@example.com", oidc_id: "user2"})
      %{users: [user1, user2]}
    end

    test "shows select all checkbox", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ ~s(name="select_all")
      assert html =~ ~s(phx-click="select_all")
    end

    test "shows individual user checkboxes", %{conn: conn, users: [user1, user2]} do
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ ~s(name="#{user1.id}")
      assert html =~ ~s(name="#{user2.id}")
      assert html =~ ~s(phx-click="select_user")
    end

    test "can select individual users", %{conn: conn, users: [user1, user2]} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Initially, individual checkboxes should exist but not be checked
      assert view |> element("input[type='checkbox'][name='#{user1.id}']") |> has_element?()
      assert view |> element("input[type='checkbox'][name='#{user2.id}']") |> has_element?()

      # Initially, select_all should not be checked (since no individual items are selected)
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Select first user checkbox
      html = view |> element("input[type='checkbox'][name='#{user1.id}']") |> render_click()

      # The select_all checkbox should still not be checked (not all users selected)
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Page should still function normally
      assert html =~ "Email"
      assert html =~ to_string(user1.email)
    end

    test "can deselect individual users", %{conn: conn, users: [user1, _user2]} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Select user first
      view |> element("input[type='checkbox'][name='#{user1.id}']") |> render_click()

      # Then deselect user
      html = view |> element("input[type='checkbox'][name='#{user1.id}']") |> render_click()

      # Select all should not be checked after deselecting individual user
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Page should still function normally
      assert html =~ "Email"
      assert html =~ to_string(user1.email)
    end

    test "select all functionality selects all users", %{conn: conn, users: [user1, user2]} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Initially no checkboxes should be checked
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      refute view
             |> element("input[type='checkbox'][name='#{user1.id}'][checked]")
             |> has_element?()

      refute view
             |> element("input[type='checkbox'][name='#{user2.id}'][checked]")
             |> has_element?()

      # Click select all
      html = view |> element("input[type='checkbox'][name='select_all']") |> render_click()

      # After selecting all, the select_all checkbox should be checked
      assert view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Page should still function normally and show all users
      assert html =~ "Email"
      assert html =~ to_string(user1.email)
      assert html =~ to_string(user2.email)
    end

    test "deselect all functionality deselects all users", %{conn: conn, users: [user1, user2]} do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Select all first
      view |> element("input[type='checkbox'][name='select_all']") |> render_click()

      # Verify that select_all is checked
      assert view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Then deselect all
      html = view |> element("input[type='checkbox'][name='select_all']") |> render_click()

      # After deselecting all, no checkboxes should be checked
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      refute view
             |> element("input[type='checkbox'][name='#{user1.id}'][checked]")
             |> has_element?()

      refute view
             |> element("input[type='checkbox'][name='#{user2.id}'][checked]")
             |> has_element?()

      # Page should still function normally
      assert html =~ "Email"
      assert html =~ to_string(user1.email)
      assert html =~ to_string(user2.email)
    end

    test "select all automatically checks when all individual users are selected", %{
      conn: conn,
      users: [user1, user2]
    } do
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Initially nothing should be checked
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Select first user
      view |> element("input[type='checkbox'][name='#{user1.id}']") |> render_click()
      # Select all should still not be checked (only 1 of 2+ users selected)
      refute view
             |> element("input[type='checkbox'][name='select_all'][checked]")
             |> has_element?()

      # Select second user
      html = view |> element("input[type='checkbox'][name='#{user2.id}']") |> render_click()

      # Now select all should be automatically checked (all individual users are selected)
      # Note: This test might need adjustment based on actual implementation
      # The logic depends on whether authenticated user is included in the count
      assert html =~ "Email"
      assert html =~ to_string(user1.email)
      assert html =~ to_string(user2.email)
    end
  end

  describe "delete functionality" do
    test "can delete a user", %{conn: conn} do
      _user = create_test_user(%{email: "delete-me@example.com"})
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # Confirm user is displayed
      assert render(view) =~ "delete-me@example.com"

      # Click the first delete button to test the functionality
      view |> element("tbody tr:first-child a[data-confirm]") |> render_click()

      # The page should still render (basic functionality test)
      html = render(view)
      # Table header should still be there
      assert html =~ "Email"
    end

    test "shows delete confirmation", %{conn: conn} do
      _user = create_test_user(%{email: "confirm-delete@example.com"})
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      # Check that delete link has confirmation attribute
      assert html =~ ~s(data-confirm="Are you sure?")
    end
  end

  describe "navigation" do
    test "clicking on user row navigates to user show page", %{conn: conn} do
      user = create_test_user(%{email: "navigate@example.com"})
      conn = conn_with_oidc_user(conn)
      {:ok, view, _html} = live(conn, "/users")

      # This test would need to check row click behavior
      # The actual navigation would happen via JavaScript
      html = render(view)
      assert html =~ ~s(/users/#{user.id})
    end

    test "edit link points to correct edit page", %{conn: conn} do
      user = create_test_user(%{email: "edit-me@example.com"})
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ ~s(/users/#{user.id}/edit)
    end

    test "new user button points to correct new page", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ ~s(/users/new)
    end
  end

  describe "translations" do
    test "shows German translations for selection", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      conn = Plug.Test.init_test_session(conn, locale: "de")
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ "Alle Benutzer*innen auswählen"
      assert html =~ "Benutzer*in auswählen"
    end

    test "shows English translations for selection", %{conn: conn} do
      conn = conn_with_oidc_user(conn)
      Gettext.put_locale(MvWeb.Gettext, "en")
      {:ok, _view, html} = live(conn, "/users")

      # Note: English translations might be empty strings by default
      # This test would verify the structure is there
      # Checking that aria-label attributes exist
      assert html =~ ~s(aria-label=)
    end
  end

  describe "edge cases" do
    test "handles empty user list gracefully", %{conn: conn} do
      # Don't create any users besides the authenticated one
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      # Should still show the table structure
      assert html =~ "Email"
      assert html =~ "OIDC ID"
      # Should show the authenticated user at minimum
      # Matches the generated email pattern oidc.user{unique_id}@example.com
      assert html =~ "oidc.user"
    end

    test "handles users with missing OIDC ID", %{conn: conn} do
      _user = create_test_user(%{email: "no-oidc@example.com", oidc_id: nil})
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ "no-oidc@example.com"
      # Should handle nil OIDC ID gracefully
    end

    test "handles very long email addresses", %{conn: conn} do
      long_email = "very.long.email.address.that.might.break.layouts@example.com"
      _user = create_test_user(%{email: long_email})
      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      assert html =~ long_email
    end
  end

  describe "member linking display" do
    test "displays linked member name in user list", %{conn: conn} do
      # Create member
      {:ok, member} =
        Mv.Membership.create_member(%{
          first_name: "Alice",
          last_name: "Johnson",
          email: "alice@example.com"
        })

      # Create user linked to member
      user = create_test_user(%{email: "user@example.com"})
      {:ok, _updated_user} = Mv.Accounts.update_user(user, %{member: %{id: member.id}})

      # Create another user without member
      _unlinked_user = create_test_user(%{email: "unlinked@example.com"})

      conn = conn_with_oidc_user(conn)
      {:ok, _view, html} = live(conn, "/users")

      # Should show linked member name
      assert html =~ "Alice Johnson"
      # Should show user email
      assert html =~ "user@example.com"
      # Should show unlinked user
      assert html =~ "unlinked@example.com"
      # Should show "No member linked" or similar for unlinked user
      assert html =~ "No member linked"
    end
  end
end