From df57323c4900af6432e4731521438584eba5d22a Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:19:13 -0500
Subject: [PATCH 01/18] refactor: move start date before end date validation to
 utility module

---
 lib/arrow/disruptions/limit.ex               | 19 +-----------------
 lib/arrow/disruptions/replacement_service.ex | 19 +-----------------
 lib/arrow/gtfs/calendar.ex                   | 13 +-----------
 lib/arrow/gtfs/feed_info.ex                  | 13 +-----------
 lib/arrow/hastus/service_date.ex             | 19 +-----------------
 lib/arrow/util/util.ex                       | 21 ++++++++++++++++++++
 6 files changed, 26 insertions(+), 78 deletions(-)

diff --git a/lib/arrow/disruptions/limit.ex b/lib/arrow/disruptions/limit.ex
index 294979b20..0a67dfe19 100644
--- a/lib/arrow/disruptions/limit.ex
+++ b/lib/arrow/disruptions/limit.ex
@@ -44,7 +44,7 @@ defmodule Arrow.Disruptions.Limit do
     ])
     |> put_change(:check_for_overlap, true)
     |> validate_required([:start_date, :end_date, :route_id, :start_stop_id, :end_stop_id])
-    |> validate_start_date_before_end_date()
+    |> Arrow.Util.validate_start_date_before_end_date()
     |> cast_assoc_day_of_weeks()
     |> exclusion_constraint(:end_date,
       name: :no_overlap,
@@ -73,23 +73,6 @@ defmodule Arrow.Disruptions.Limit do
     |> struct!(attrs)
   end
 
-  @spec validate_start_date_before_end_date(Ecto.Changeset.t(t())) :: Ecto.Changeset.t(t())
-  defp validate_start_date_before_end_date(changeset) do
-    start_date = get_field(changeset, :start_date)
-    end_date = get_field(changeset, :end_date)
-
-    cond do
-      is_nil(start_date) or is_nil(end_date) ->
-        changeset
-
-      Date.compare(start_date, end_date) == :gt ->
-        add_error(changeset, :start_date, "start date should not be after end date")
-
-      true ->
-        changeset
-    end
-  end
-
   @spec cast_assoc_day_of_weeks(Ecto.Changeset.t(t())) :: Ecto.Changeset.t(t())
   defp cast_assoc_day_of_weeks(changeset) do
     start_date = get_field(changeset, :start_date)
diff --git a/lib/arrow/disruptions/replacement_service.ex b/lib/arrow/disruptions/replacement_service.ex
index 2fd406191..5d59156f8 100644
--- a/lib/arrow/disruptions/replacement_service.ex
+++ b/lib/arrow/disruptions/replacement_service.ex
@@ -52,28 +52,11 @@ defmodule Arrow.Disruptions.ReplacementService do
       :disruption_id,
       :shuttle_id
     ])
-    |> validate_start_date_before_end_date()
+    |> Arrow.Util.validate_start_date_before_end_date()
     |> assoc_constraint(:shuttle)
     |> assoc_constraint(:disruption)
   end
 
-  @spec validate_start_date_before_end_date(Ecto.Changeset.t(t())) :: Ecto.Changeset.t(t())
-  defp validate_start_date_before_end_date(changeset) do
-    start_date = get_field(changeset, :start_date)
-    end_date = get_field(changeset, :end_date)
-
-    cond do
-      is_nil(start_date) or is_nil(end_date) ->
-        changeset
-
-      Date.compare(start_date, end_date) == :gt ->
-        add_error(changeset, :start_date, "start date should not be after end date")
-
-      true ->
-        changeset
-    end
-  end
-
   def add_timetable(%__MODULE__{} = replacement_service) do
     timetable =
       schedule_service_types()
diff --git a/lib/arrow/gtfs/calendar.ex b/lib/arrow/gtfs/calendar.ex
index d0ce45da8..e301fd98f 100644
--- a/lib/arrow/gtfs/calendar.ex
+++ b/lib/arrow/gtfs/calendar.ex
@@ -33,18 +33,7 @@ defmodule Arrow.Gtfs.Calendar do
       ~w[service_id monday tuesday wednesday thursday friday saturday sunday start_date end_date]a
     )
     |> assoc_constraint(:service)
-    |> validate_start_date_not_after_end_date()
-  end
-
-  defp validate_start_date_not_after_end_date(changeset) do
-    start_date = fetch_field!(changeset, :start_date)
-    end_date = fetch_field!(changeset, :end_date)
-
-    if Date.compare(start_date, end_date) in [:lt, :eq] do
-      changeset
-    else
-      add_error(changeset, :dates, "start date should not be after end date")
-    end
+    |> Arrow.Util.validate_start_date_before_end_date()
   end
 
   @impl Arrow.Gtfs.Importable
diff --git a/lib/arrow/gtfs/feed_info.ex b/lib/arrow/gtfs/feed_info.ex
index 6f36e6974..30774a1e4 100644
--- a/lib/arrow/gtfs/feed_info.ex
+++ b/lib/arrow/gtfs/feed_info.ex
@@ -32,18 +32,7 @@ defmodule Arrow.Gtfs.FeedInfo do
     |> validate_required(
       ~w[id publisher_name publisher_url lang start_date end_date version contact_email]a
     )
-    |> validate_start_date_before_end_date()
-  end
-
-  defp validate_start_date_before_end_date(changeset) do
-    start_date = fetch_field!(changeset, :start_date)
-    end_date = fetch_field!(changeset, :end_date)
-
-    if Date.compare(start_date, end_date) == :lt do
-      changeset
-    else
-      add_error(changeset, :dates, "start date should be before end date")
-    end
+    |> Arrow.Util.validate_start_date_before_end_date()
   end
 
   @impl Arrow.Gtfs.Importable
diff --git a/lib/arrow/hastus/service_date.ex b/lib/arrow/hastus/service_date.ex
index 2d11ab910..ceab51ef1 100644
--- a/lib/arrow/hastus/service_date.ex
+++ b/lib/arrow/hastus/service_date.ex
@@ -17,7 +17,7 @@ defmodule Arrow.Hastus.ServiceDate do
     service_date
     |> cast(attrs, [:start_date, :end_date, :service_id])
     |> validate_required([:start_date, :end_date])
-    |> validate_start_date_before_end_date()
+    |> Arrow.Util.validate_start_date_before_end_date()
     |> assoc_constraint(:service)
   end
 
@@ -31,21 +31,4 @@ defmodule Arrow.Hastus.ServiceDate do
     |> Stream.take(7)
     |> MapSet.new(&Date.day_of_week/1)
   end
-
-  @spec validate_start_date_before_end_date(Ecto.Changeset.t(t())) :: Ecto.Changeset.t(t())
-  defp validate_start_date_before_end_date(changeset) do
-    start_date = get_field(changeset, :start_date)
-    end_date = get_field(changeset, :end_date)
-
-    cond do
-      is_nil(start_date) or is_nil(end_date) ->
-        changeset
-
-      Date.compare(start_date, end_date) == :gt ->
-        add_error(changeset, :start_date, "start date must be less than or equal to end date")
-
-      true ->
-        changeset
-    end
-  end
 end
diff --git a/lib/arrow/util/util.ex b/lib/arrow/util/util.ex
index 29d2e4f62..41d40d45d 100644
--- a/lib/arrow/util/util.ex
+++ b/lib/arrow/util/util.ex
@@ -81,4 +81,25 @@ defmodule Arrow.Util do
       Phoenix.VerifiedRoutes.static_path(conn_or_socket, "/images/icon-bus-outline-small.svg")
     )
   end
+
+  @spec validate_start_date_before_end_date(Ecto.Changeset.t(any())) :: Ecto.Changeset.t(any())
+  def validate_start_date_before_end_date(changeset) do
+    start_date = Ecto.Changeset.get_field(changeset, :start_date)
+    end_date = Ecto.Changeset.get_field(changeset, :end_date)
+
+    cond do
+      is_nil(start_date) or is_nil(end_date) ->
+        changeset
+
+      Date.compare(start_date, end_date) == :gt ->
+        Ecto.Changeset.add_error(
+          changeset,
+          :start_date,
+          "start date must be less than or equal to end date"
+        )
+
+      true ->
+        changeset
+    end
+  end
 end

From 485a531ed21ae69315c8583a90a9caeac175ca1f Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:19:48 -0500
Subject: [PATCH 02/18] feat(trainsformer): validate start date is before end
 date for trainsformer service date

---
 lib/arrow/trainsformer/service_date.ex | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/arrow/trainsformer/service_date.ex b/lib/arrow/trainsformer/service_date.ex
index 948db3b90..a2784366c 100644
--- a/lib/arrow/trainsformer/service_date.ex
+++ b/lib/arrow/trainsformer/service_date.ex
@@ -39,6 +39,7 @@ defmodule Arrow.Trainsformer.ServiceDate do
     |> cast(transformed_attrs, [:start_date, :end_date, :service_id])
     |> cast_assoc(:service_date_days_of_week, with: &ServiceDateDayOfWeek.changeset/2)
     |> validate_required([:start_date, :end_date])
+    |> Arrow.Util.validate_start_date_before_end_date()
     |> assoc_constraint(:service)
   end
 end

From d4da2149a5011a31720e57b86d3aad6aef532ef0 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:20:40 -0500
Subject: [PATCH 03/18] polish: change the opacity on hover for trainsformer
 icons

---
 lib/arrow_web/components/disruption_components.ex         | 4 ++--
 lib/arrow_web/components/edit_trainsformer_export_form.ex | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/arrow_web/components/disruption_components.ex b/lib/arrow_web/components/disruption_components.ex
index 11217d718..240240d3f 100644
--- a/lib/arrow_web/components/disruption_components.ex
+++ b/lib/arrow_web/components/disruption_components.ex
@@ -497,7 +497,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   class="btn-sm p-0"
                   patch={~p"/disruptions/#{@disruption.id}/trainsformer_export/#{export.id}/edit"}
                 >
-                  <.icon name="hero-pencil-solid" class="bg-primary" />
+                  <.icon name="hero-pencil-solid" class="bg-primary hover:opacity-40" />
                 </.link>
                 <.button
                   :if={!@editing}
@@ -508,7 +508,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   phx-value-export={export.id}
                   data-confirm="Are you sure you want to delete this export?"
                 >
-                  <.icon name="hero-trash-solid" class="bg-primary" />
+                  <.icon name="hero-trash-solid" class="bg-primary hover:opacity-40" />
                 </.button>
               </div>
             </div>
diff --git a/lib/arrow_web/components/edit_trainsformer_export_form.ex b/lib/arrow_web/components/edit_trainsformer_export_form.ex
index fde05df77..b97ed9a8f 100644
--- a/lib/arrow_web/components/edit_trainsformer_export_form.ex
+++ b/lib/arrow_web/components/edit_trainsformer_export_form.ex
@@ -221,6 +221,7 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
                             phx-value-date_index={f_date.index}
                             phx-target={@myself}
                           >
+                          <label class="cursor-pointer hover:opacity-40">
                             <.icon name="hero-trash-solid" class="bg-primary" />
                           </.button>
                         </div>

From 2b98960c7895cb833a0f59056966b2e55de8912b Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:21:53 -0500
Subject: [PATCH 04/18] fix(trainsformer): use sort/drop params to add or
 remove service dates instead of using bespoke events

---
 lib/arrow/trainsformer/service.ex             |  6 ++-
 .../edit_trainsformer_export_form.ex          | 40 +++++++++++--------
 2 files changed, 29 insertions(+), 17 deletions(-)

diff --git a/lib/arrow/trainsformer/service.ex b/lib/arrow/trainsformer/service.ex
index 46e08bff9..a31539235 100644
--- a/lib/arrow/trainsformer/service.ex
+++ b/lib/arrow/trainsformer/service.ex
@@ -23,8 +23,12 @@ defmodule Arrow.Trainsformer.Service do
   def changeset(service, attrs) do
     service
     |> cast(attrs, [:name, :export_id])
+    |> cast_assoc(:service_dates,
+      with: &ServiceDate.changeset/2,
+      sort_param: :service_dates_sort,
+      drop_param: :service_dates_drop
+    )
     |> validate_required([:name])
-    |> cast_assoc(:service_dates, with: &ServiceDate.changeset/2)
     |> assoc_constraint(:export)
   end
 end
diff --git a/lib/arrow_web/components/edit_trainsformer_export_form.ex b/lib/arrow_web/components/edit_trainsformer_export_form.ex
index b97ed9a8f..944c51e89 100644
--- a/lib/arrow_web/components/edit_trainsformer_export_form.ex
+++ b/lib/arrow_web/components/edit_trainsformer_export_form.ex
@@ -152,6 +152,11 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
                   </div>
                   <div class="col-lg-9 text-md">
                     <.inputs_for :let={f_date} field={f_service[:service_dates]}>
+                      <input
+                        type="hidden"
+                        name={Phoenix.HTML.Form.input_name(f_service, :service_dates_sort) <> "[]"}
+                        value={f_date.index}
+                      />
                       {f_service[:start_date].value}
                       <div class="row">
                         <div class="col">
@@ -214,16 +219,15 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
                           </div>
                         </div>
                         <div class="col">
-                          <.button
-                            type="button"
-                            phx-click="delete_service_date"
-                            phx-value-service_index={f_service.index}
-                            phx-value-date_index={f_date.index}
-                            phx-target={@myself}
-                          >
                           <label class="cursor-pointer hover:opacity-40">
                             <.icon name="hero-trash-solid" class="bg-primary" />
-                          </.button>
+                            <input
+                              type="checkbox"
+                              name={Phoenix.HTML.Form.input_name(f_service, :service_dates_drop) <> "[]"}
+                              class="hidden"
+                              value={f_date.index}
+                            />
+                          </label>
                         </div>
                       </div>
                       <div class="row">
@@ -240,15 +244,19 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
 
                 <div class="row mt-3">
                   <div class="col-9" />
-                  <.button
-                    type="button"
-                    class="btn h-15 w-15 btn-primary btn-sm "
-                    value={f_service.index}
-                    phx-click="add_service_date"
-                    phx-target={@myself}
-                  >
+                  <label class="btn h-15 w-15 btn-primary btn-sm">
                     Add Another Timeframe
-                  </.button>
+                    <input
+                      type="checkbox"
+                      name={Phoenix.HTML.Form.input_name(f_service, :service_dates_sort) <> "[]"}
+                      class="hidden"
+                      value={
+                        if Ecto.assoc_loaded?(f_service[:service_dates]),
+                          do: Enum.count(f_service[:service_dates].value),
+                          else: 0
+                      }
+                    />
+                  </label>
                 </div>
               </.inputs_for>
             </div>

From 7d2c1be6cb42353d7bbfdf8d34b84b86dce0d71b Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:41:30 -0500
Subject: [PATCH 05/18] fix(trainsformer): remove unused add / delete service
 date event handlers

---
 .../edit_trainsformer_export_form.ex          | 55 -------------------
 1 file changed, 55 deletions(-)

diff --git a/lib/arrow_web/components/edit_trainsformer_export_form.ex b/lib/arrow_web/components/edit_trainsformer_export_form.ex
index 944c51e89..1964696a8 100644
--- a/lib/arrow_web/components/edit_trainsformer_export_form.ex
+++ b/lib/arrow_web/components/edit_trainsformer_export_form.ex
@@ -7,7 +7,6 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
   alias Arrow.Trainsformer
   alias Arrow.Trainsformer.Export
   alias Arrow.Trainsformer.ExportUpload
-  alias Arrow.Trainsformer.ServiceDate
   alias Arrow.Trainsformer.ServiceDateDayOfWeek
   alias Phoenix.LiveView.UploadEntry
 
@@ -435,60 +434,6 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
     {:noreply, socket}
   end
 
-  def handle_event("add_service_date", %{"value" => index}, socket) do
-    {index, _} = Integer.parse(index)
-
-    socket =
-      update(socket, :form, fn %{source: changeset} ->
-        updated_services =
-          changeset
-          |> Ecto.Changeset.get_assoc(:services)
-          |> update_in([Access.at(index)], fn service ->
-            existing_dates = Ecto.Changeset.get_assoc(service, :service_dates)
-
-            Ecto.Changeset.put_change(
-              service,
-              :service_dates,
-              existing_dates ++ [%ServiceDate{service_date_days_of_week: []}]
-            )
-          end)
-
-        changeset
-        |> Ecto.Changeset.put_assoc(:services, updated_services)
-        |> to_form()
-      end)
-
-    {:noreply, socket}
-  end
-
-  def handle_event(
-        "delete_service_date",
-        %{"service_index" => service_index, "date_index" => date_index},
-        socket
-      ) do
-    {service_index, _} = Integer.parse(service_index)
-    {date_index, _} = Integer.parse(date_index)
-
-    socket =
-      update(socket, :form, fn %{source: changeset} ->
-        updated_services =
-          changeset
-          |> Ecto.Changeset.get_assoc(:services)
-          |> update_in([Access.at(service_index)], fn service ->
-            dates =
-              service |> Ecto.Changeset.get_assoc(:service_dates) |> List.delete_at(date_index)
-
-            Ecto.Changeset.put_change(service, :service_dates, dates)
-          end)
-
-        changeset
-        |> Ecto.Changeset.put_assoc(:services, updated_services)
-        |> to_form()
-      end)
-
-    {:noreply, socket}
-  end
-
   defp handle_progress(:trainsformer_export, %UploadEntry{done?: false}, socket) do
     {:noreply, socket}
   end

From 6bc5c9101bb018b132f170d3ea2ddb20db296190 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 28 Jan 2026 17:58:08 -0500
Subject: [PATCH 06/18] polish: set a default of today for start / end date

---
 lib/arrow/trainsformer/service_date.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/arrow/trainsformer/service_date.ex b/lib/arrow/trainsformer/service_date.ex
index a2784366c..fcb359671 100644
--- a/lib/arrow/trainsformer/service_date.ex
+++ b/lib/arrow/trainsformer/service_date.ex
@@ -6,8 +6,8 @@ defmodule Arrow.Trainsformer.ServiceDate do
   alias Arrow.Trainsformer.ServiceDateDayOfWeek
 
   typed_schema "trainsformer_service_dates" do
-    field :start_date, :date
-    field :end_date, :date
+    field :start_date, :date, default: Date.utc_today()
+    field :end_date, :date, default: Date.utc_today()
     belongs_to :service, Arrow.Trainsformer.Service, on_replace: :delete
 
     has_many :service_date_days_of_week, ServiceDateDayOfWeek,

From 388ccd41470b208f7864c832c17caaa7ed8c1273 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Fri, 30 Jan 2026 12:32:53 -0500
Subject: [PATCH 07/18] fixup: set value of new service date to new

---
 lib/arrow_web/components/edit_trainsformer_export_form.ex | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/lib/arrow_web/components/edit_trainsformer_export_form.ex b/lib/arrow_web/components/edit_trainsformer_export_form.ex
index 1964696a8..2166ac772 100644
--- a/lib/arrow_web/components/edit_trainsformer_export_form.ex
+++ b/lib/arrow_web/components/edit_trainsformer_export_form.ex
@@ -249,11 +249,7 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
                       type="checkbox"
                       name={Phoenix.HTML.Form.input_name(f_service, :service_dates_sort) <> "[]"}
                       class="hidden"
-                      value={
-                        if Ecto.assoc_loaded?(f_service[:service_dates]),
-                          do: Enum.count(f_service[:service_dates].value),
-                          else: 0
-                      }
+                      value="new"
                     />
                   </label>
                 </div>

From 69c8fcaf0bd845a7957b886cac74d78ab20f7730 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Fri, 30 Jan 2026 13:34:37 -0500
Subject: [PATCH 08/18] fixup: correctly delete trainsformer exports

---
 lib/arrow_web/components/disruption_components.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/arrow_web/components/disruption_components.ex b/lib/arrow_web/components/disruption_components.ex
index 240240d3f..6d03eae73 100644
--- a/lib/arrow_web/components/disruption_components.ex
+++ b/lib/arrow_web/components/disruption_components.ex
@@ -504,7 +504,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   id={"delete-export-button-#{export.id}"}
                   class="btn-sm p-0"
                   type="button"
-                  phx-click="delete_export"
+                  phx-click="delete_trainsformer_export"
                   phx-value-export={export.id}
                   data-confirm="Are you sure you want to delete this export?"
                 >

From b2c26b63ed28dee132052041a5f669ae920a194d Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Fri, 30 Jan 2026 14:55:31 -0500
Subject: [PATCH 09/18] test: delete a service date in the integration test

---
 .../trainsformer_export_section_test.exs      | 38 ++++++++++++-------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/test/integration/disruptionsv2/trainsformer_export_section_test.exs b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
index 48c9e4ac1..b2db213fa 100644
--- a/test/integration/disruptionsv2/trainsformer_export_section_test.exs
+++ b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
@@ -282,20 +282,22 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
 
     [%{id: export_id} | _] = disruption.trainsformer_exports
 
-    session
-    |> visit("/disruptions/#{disruption.id}/")
-    |> click(Query.css("#edit-export-button-#{export_id}"))
-    |> click(Query.checkbox("Wednesday"))
-    |> fill_in(
-      Query.fillable_field("End Date"),
-      with: "01/28/2026"
-    )
-    |> click(text("Add Another Timeframe"))
-    |> fill_in("Start Date" |> Query.fillable_field() |> Query.at(1), with: "01/30/2026")
-    |> fill_in("End Date" |> Query.fillable_field() |> Query.at(1), with: "02/05/2026")
-    |> click("Monday" |> Query.checkbox() |> Query.at(1))
-    |> click(text("Save"))
-    |> assert_text("Trainsformer service schedules updated successfully!")
+    session_before_delete =
+      session
+      |> visit("/disruptions/#{disruption.id}/")
+      |> click(Query.css("#edit-export-button-#{export_id}"))
+      |> click(Query.checkbox("Wednesday"))
+      |> fill_in(
+        Query.fillable_field("End Date"),
+        with: "01/28/2026"
+      )
+      |> click(text("Add Another Timeframe"))
+      |> fill_in("Start Date" |> Query.fillable_field() |> Query.at(1), with: "01/30/2026")
+      |> fill_in("End Date" |> Query.fillable_field() |> Query.at(1), with: "02/05/2026")
+      |> click("Monday" |> Query.checkbox() |> Query.at(1))
+      |> click(text("Save"))
+
+    assert_text(session_before_delete, "Trainsformer service schedules updated successfully!")
     |> assert_text("01/21/2026")
     |> assert_text("01/28/2026")
     |> assert_text("01/30/2026")
@@ -307,5 +309,13 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
       |> Query.css()
       |> Query.count(1)
     )
+
+    # delete second service date
+    session_before_delete
+    |> click(Query.css("#edit-export-button-#{export_id}"))
+    |> click(Query.css("label span.hero-trash-solid") |> Query.at(1))
+    |> click(text("Save"))
+    |> refute_has(text("01/30/2026"))
+    |> refute_has(text("02/05/2026"))
   end
 end

From a9b69694aa3d3d01df3ff805e5aacf1f5eec5a5a Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Fri, 30 Jan 2026 15:55:28 -0500
Subject: [PATCH 10/18] fixup: credo issues with integration tests

---
 .../trainsformer_export_section_test.exs      | 31 ++++++++++---------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/test/integration/disruptionsv2/trainsformer_export_section_test.exs b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
index b2db213fa..736137531 100644
--- a/test/integration/disruptionsv2/trainsformer_export_section_test.exs
+++ b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
@@ -296,24 +296,27 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
       |> fill_in("End Date" |> Query.fillable_field() |> Query.at(1), with: "02/05/2026")
       |> click("Monday" |> Query.checkbox() |> Query.at(1))
       |> click(text("Save"))
-
-    assert_text(session_before_delete, "Trainsformer service schedules updated successfully!")
-    |> assert_text("01/21/2026")
-    |> assert_text("01/28/2026")
-    |> assert_text("01/30/2026")
-    |> assert_text("02/05/2026")
-    |> assert_has(".text-primary[name=\"day-of-week-monday\"]" |> Query.css() |> Query.count(2))
-    |> assert_has(".text-primary[name=\"day-of-week-tuesday\"]" |> Query.css() |> Query.count(1))
-    |> assert_has(
-      ".text-primary[name=\"day-of-week-wednesday\"]"
-      |> Query.css()
-      |> Query.count(1)
-    )
+      |> assert_text("Trainsformer service schedules updated successfully!")
+      |> assert_text("01/21/2026")
+      |> assert_text("01/28/2026")
+      |> assert_text("01/30/2026")
+      |> assert_text("02/05/2026")
+      |> assert_has(".text-primary[name=\"day-of-week-monday\"]" |> Query.css() |> Query.count(2))
+      |> assert_has(
+        ".text-primary[name=\"day-of-week-tuesday\"]"
+        |> Query.css()
+        |> Query.count(1)
+      )
+      |> assert_has(
+        ".text-primary[name=\"day-of-week-wednesday\"]"
+        |> Query.css()
+        |> Query.count(1)
+      )
 
     # delete second service date
     session_before_delete
     |> click(Query.css("#edit-export-button-#{export_id}"))
-    |> click(Query.css("label span.hero-trash-solid") |> Query.at(1))
+    |> click("label span.hero-trash-solid" |> Query.css() |> Query.at(1))
     |> click(text("Save"))
     |> refute_has(text("01/30/2026"))
     |> refute_has(text("02/05/2026"))

From 1e47a13e4d50f387c8f948c0945b3f42e28bebc6 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 10:52:28 -0500
Subject: [PATCH 11/18] fixup: export => hastus_export

---
 lib/arrow_web/components/disruption_components.ex           | 6 +++---
 .../live/disruption_v2_live/disruption_v2_view_live.ex      | 2 +-
 .../disruptionsv2/hastus_export_section_test.exs            | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/arrow_web/components/disruption_components.ex b/lib/arrow_web/components/disruption_components.ex
index 6d03eae73..bca95bafe 100644
--- a/lib/arrow_web/components/disruption_components.ex
+++ b/lib/arrow_web/components/disruption_components.ex
@@ -329,7 +329,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   <div class="text-right">
                     <.link
                       :if={!@editing}
-                      id={"edit-export-button-#{export.id}"}
+                      id={"edit-hastus-export-button-#{export.id}"}
                       class="btn-sm p-0"
                       patch={~p"/disruptions/#{@disruption.id}/hastus_export/#{export.id}/edit"}
                     >
@@ -337,10 +337,10 @@ defmodule ArrowWeb.DisruptionComponents do
                     </.link>
                     <.button
                       :if={!@editing}
-                      id={"delete-export-button-#{export.id}"}
+                      id={"delete-hastus-export-button-#{export.id}"}
                       class="btn-sm p-0"
                       type="button"
-                      phx-click="delete_export"
+                      phx-click="delete_hastus_export"
                       phx-value-export={export.id}
                       data-confirm="Are you sure you want to delete this export?"
                     >
diff --git a/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex b/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
index 9f1de0da9..86be9dd48 100644
--- a/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
+++ b/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
@@ -111,7 +111,7 @@ defmodule ArrowWeb.DisruptionV2ViewLive do
     end
   end
 
-  def handle_event("delete_export", %{"export" => export_id}, socket) do
+  def handle_event("delete_hastus_aexport", %{"export" => export_id}, socket) do
     {parsed_id, _} = Integer.parse(export_id)
     export = Hastus.get_export!(parsed_id)
 
diff --git a/test/integration/disruptionsv2/hastus_export_section_test.exs b/test/integration/disruptionsv2/hastus_export_section_test.exs
index 112aa43cd..18e9f0084 100644
--- a/test/integration/disruptionsv2/hastus_export_section_test.exs
+++ b/test/integration/disruptionsv2/hastus_export_section_test.exs
@@ -124,7 +124,7 @@ defmodule Arrow.Integration.Disruptionsv2.HastusExportSectionTest do
     |> visit("/disruptions/#{disruption.id}")
     |> scroll_down()
     |> assert_text("some-Weekday-service")
-    |> click(Query.css("#delete-export-button-#{export.id}"))
+    |> click(Query.css("#delete-hastus-export-button-#{export.id}"))
     |> refute_has(Query.css("#export-table-hastus-#{export.id}"))
   end
 

From b1387abd1d6414d334539e6221e4721ac0ad5504 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 10:54:44 -0500
Subject: [PATCH 12/18] fixup: increase opacity by 40% on hover instead of
 decreasing

---
 lib/arrow_web/components/core_components.ex               | 2 +-
 lib/arrow_web/components/disruption_components.ex         | 4 ++--
 lib/arrow_web/components/edit_trainsformer_export_form.ex | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/arrow_web/components/core_components.ex b/lib/arrow_web/components/core_components.ex
index 37e9a98a6..3fdfbf028 100644
--- a/lib/arrow_web/components/core_components.ex
+++ b/lib/arrow_web/components/core_components.ex
@@ -77,7 +77,7 @@ defmodule ArrowWeb.CoreComponents do
                 <button
                   phx-click={JS.exec("data-cancel", to: "##{@id}")}
                   type="button"
-                  class="-m-3 flex-none p-3 opacity-20 hover:opacity-40"
+                  class="-m-3 flex-none p-3 opacity-20 hover:opacity-140"
                   aria-label={gettext("close")}
                 >
                   <.icon name="hero-x-mark-solid" class="h-5 w-5" />
diff --git a/lib/arrow_web/components/disruption_components.ex b/lib/arrow_web/components/disruption_components.ex
index bca95bafe..4f1662db5 100644
--- a/lib/arrow_web/components/disruption_components.ex
+++ b/lib/arrow_web/components/disruption_components.ex
@@ -497,7 +497,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   class="btn-sm p-0"
                   patch={~p"/disruptions/#{@disruption.id}/trainsformer_export/#{export.id}/edit"}
                 >
-                  <.icon name="hero-pencil-solid" class="bg-primary hover:opacity-40" />
+                  <.icon name="hero-pencil-solid" class="bg-primary hover:opacity-140" />
                 </.link>
                 <.button
                   :if={!@editing}
@@ -508,7 +508,7 @@ defmodule ArrowWeb.DisruptionComponents do
                   phx-value-export={export.id}
                   data-confirm="Are you sure you want to delete this export?"
                 >
-                  <.icon name="hero-trash-solid" class="bg-primary hover:opacity-40" />
+                  <.icon name="hero-trash-solid" class="bg-primary hover:opacity-140" />
                 </.button>
               </div>
             </div>
diff --git a/lib/arrow_web/components/edit_trainsformer_export_form.ex b/lib/arrow_web/components/edit_trainsformer_export_form.ex
index 2166ac772..e7bafb7c4 100644
--- a/lib/arrow_web/components/edit_trainsformer_export_form.ex
+++ b/lib/arrow_web/components/edit_trainsformer_export_form.ex
@@ -218,7 +218,7 @@ defmodule ArrowWeb.EditTrainsformerExportForm do
                           </div>
                         </div>
                         <div class="col">
-                          <label class="cursor-pointer hover:opacity-40">
+                          <label class="cursor-pointer hover:opacity-140">
                             <.icon name="hero-trash-solid" class="bg-primary" />
                             <input
                               type="checkbox"

From 8048ed1c9da86850c7cac174e9e2b5ff730b02af Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 11:08:18 -0500
Subject: [PATCH 13/18] fixup: change other stuff to hastus export instead of
 just export

---
 test/integration/disruptionsv2/hastus_export_section_test.exs | 4 ++--
 .../disruptionsv2/trainsformer_export_section_test.exs        | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/test/integration/disruptionsv2/hastus_export_section_test.exs b/test/integration/disruptionsv2/hastus_export_section_test.exs
index 18e9f0084..9ef9071cc 100644
--- a/test/integration/disruptionsv2/hastus_export_section_test.exs
+++ b/test/integration/disruptionsv2/hastus_export_section_test.exs
@@ -72,7 +72,7 @@ defmodule Arrow.Integration.Disruptionsv2.HastusExportSectionTest do
     |> visit("/disruptions/#{disruption.id}")
     |> scroll_down()
     |> assert_text("some-Weekday-service")
-    |> click(Query.css("#edit-export-button-#{export.id}"))
+    |> click(Query.css("#edit-hastus-export-button-#{export.id}"))
     |> assert_text("edit service schedule")
     |> scroll_down()
     |> click(Query.css("#import-checkbox-0"))
@@ -106,7 +106,7 @@ defmodule Arrow.Integration.Disruptionsv2.HastusExportSectionTest do
     |> visit("/disruptions/#{disruption.id}")
     |> scroll_down()
     |> assert_text("some-Weekday-service")
-    |> click(Query.css("#edit-export-button-#{export.id}"))
+    |> click(Query.css("#edit-hastus-export-button-#{export.id}"))
     |> assert_text("edit service schedule")
     |> scroll_down()
     |> click(Query.css("#import-checkbox-0"))
diff --git a/test/integration/disruptionsv2/trainsformer_export_section_test.exs b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
index 736137531..a7a3573ec 100644
--- a/test/integration/disruptionsv2/trainsformer_export_section_test.exs
+++ b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
@@ -285,7 +285,7 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
     session_before_delete =
       session
       |> visit("/disruptions/#{disruption.id}/")
-      |> click(Query.css("#edit-export-button-#{export_id}"))
+      |> click(Query.css("#edit-hastus-export-button-#{export_id}"))
       |> click(Query.checkbox("Wednesday"))
       |> fill_in(
         Query.fillable_field("End Date"),
@@ -315,7 +315,7 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
 
     # delete second service date
     session_before_delete
-    |> click(Query.css("#edit-export-button-#{export_id}"))
+    |> click(Query.css("#edit-hastus-export-button-#{export_id}"))
     |> click("label span.hero-trash-solid" |> Query.css() |> Query.at(1))
     |> click(text("Save"))
     |> refute_has(text("01/30/2026"))

From 9ed834bb2804d9c31e5ac08a30bebc8435ae033c Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 11:39:53 -0500
Subject: [PATCH 14/18] fixup: move sart / end date validation to
 Arrow.Util.Validation module

---
 lib/arrow/disruptions/limit.ex               |  6 ++---
 lib/arrow/disruptions/replacement_service.ex |  2 +-
 lib/arrow/gtfs/calendar.ex                   |  2 +-
 lib/arrow/gtfs/feed_info.ex                  |  2 +-
 lib/arrow/hastus/service_date.ex             |  2 +-
 lib/arrow/trainsformer/service_date.ex       |  2 +-
 lib/arrow/util/util.ex                       | 21 ----------------
 lib/arrow/util/validation.ex                 | 26 ++++++++++++++++++++
 8 files changed, 34 insertions(+), 29 deletions(-)
 create mode 100644 lib/arrow/util/validation.ex

diff --git a/lib/arrow/disruptions/limit.ex b/lib/arrow/disruptions/limit.ex
index 0a67dfe19..30c1a3fd4 100644
--- a/lib/arrow/disruptions/limit.ex
+++ b/lib/arrow/disruptions/limit.ex
@@ -44,7 +44,7 @@ defmodule Arrow.Disruptions.Limit do
     ])
     |> put_change(:check_for_overlap, true)
     |> validate_required([:start_date, :end_date, :route_id, :start_stop_id, :end_stop_id])
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
     |> cast_assoc_day_of_weeks()
     |> exclusion_constraint(:end_date,
       name: :no_overlap,
@@ -85,7 +85,7 @@ defmodule Arrow.Disruptions.Limit do
   end
 
   @spec dow_in_date_range(Date.t() | nil, Date.t() | nil) ::
-          MapSet.t(Arrow.Util.DayOfWeek.day_name())
+          MapSet.t(Arrow.Util.Validation.DayOfWeek.day_name())
   defp dow_in_date_range(start_date, end_date)
        when is_nil(start_date)
        when is_nil(end_date) do
@@ -96,6 +96,6 @@ defmodule Arrow.Disruptions.Limit do
     start_date
     |> Date.range(end_date)
     |> Stream.take(7)
-    |> MapSet.new(&(&1 |> Date.day_of_week() |> Arrow.Util.DayOfWeek.get_day_name()))
+    |> MapSet.new(&(&1 |> Date.day_of_week() |> Arrow.Util.Validation.DayOfWeek.get_day_name()))
   end
 end
diff --git a/lib/arrow/disruptions/replacement_service.ex b/lib/arrow/disruptions/replacement_service.ex
index 5d59156f8..b48c43dd4 100644
--- a/lib/arrow/disruptions/replacement_service.ex
+++ b/lib/arrow/disruptions/replacement_service.ex
@@ -52,7 +52,7 @@ defmodule Arrow.Disruptions.ReplacementService do
       :disruption_id,
       :shuttle_id
     ])
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
     |> assoc_constraint(:shuttle)
     |> assoc_constraint(:disruption)
   end
diff --git a/lib/arrow/gtfs/calendar.ex b/lib/arrow/gtfs/calendar.ex
index e301fd98f..696e3f986 100644
--- a/lib/arrow/gtfs/calendar.ex
+++ b/lib/arrow/gtfs/calendar.ex
@@ -33,7 +33,7 @@ defmodule Arrow.Gtfs.Calendar do
       ~w[service_id monday tuesday wednesday thursday friday saturday sunday start_date end_date]a
     )
     |> assoc_constraint(:service)
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
   end
 
   @impl Arrow.Gtfs.Importable
diff --git a/lib/arrow/gtfs/feed_info.ex b/lib/arrow/gtfs/feed_info.ex
index 30774a1e4..f6d792bc3 100644
--- a/lib/arrow/gtfs/feed_info.ex
+++ b/lib/arrow/gtfs/feed_info.ex
@@ -32,7 +32,7 @@ defmodule Arrow.Gtfs.FeedInfo do
     |> validate_required(
       ~w[id publisher_name publisher_url lang start_date end_date version contact_email]a
     )
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
   end
 
   @impl Arrow.Gtfs.Importable
diff --git a/lib/arrow/hastus/service_date.ex b/lib/arrow/hastus/service_date.ex
index ceab51ef1..764d64e4a 100644
--- a/lib/arrow/hastus/service_date.ex
+++ b/lib/arrow/hastus/service_date.ex
@@ -17,7 +17,7 @@ defmodule Arrow.Hastus.ServiceDate do
     service_date
     |> cast(attrs, [:start_date, :end_date, :service_id])
     |> validate_required([:start_date, :end_date])
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
     |> assoc_constraint(:service)
   end
 
diff --git a/lib/arrow/trainsformer/service_date.ex b/lib/arrow/trainsformer/service_date.ex
index fcb359671..9d4f4cdf4 100644
--- a/lib/arrow/trainsformer/service_date.ex
+++ b/lib/arrow/trainsformer/service_date.ex
@@ -39,7 +39,7 @@ defmodule Arrow.Trainsformer.ServiceDate do
     |> cast(transformed_attrs, [:start_date, :end_date, :service_id])
     |> cast_assoc(:service_date_days_of_week, with: &ServiceDateDayOfWeek.changeset/2)
     |> validate_required([:start_date, :end_date])
-    |> Arrow.Util.validate_start_date_before_end_date()
+    |> Arrow.Util.Validation.validate_start_date_before_end_date()
     |> assoc_constraint(:service)
   end
 end
diff --git a/lib/arrow/util/util.ex b/lib/arrow/util/util.ex
index 41d40d45d..29d2e4f62 100644
--- a/lib/arrow/util/util.ex
+++ b/lib/arrow/util/util.ex
@@ -81,25 +81,4 @@ defmodule Arrow.Util do
       Phoenix.VerifiedRoutes.static_path(conn_or_socket, "/images/icon-bus-outline-small.svg")
     )
   end
-
-  @spec validate_start_date_before_end_date(Ecto.Changeset.t(any())) :: Ecto.Changeset.t(any())
-  def validate_start_date_before_end_date(changeset) do
-    start_date = Ecto.Changeset.get_field(changeset, :start_date)
-    end_date = Ecto.Changeset.get_field(changeset, :end_date)
-
-    cond do
-      is_nil(start_date) or is_nil(end_date) ->
-        changeset
-
-      Date.compare(start_date, end_date) == :gt ->
-        Ecto.Changeset.add_error(
-          changeset,
-          :start_date,
-          "start date must be less than or equal to end date"
-        )
-
-      true ->
-        changeset
-    end
-  end
 end
diff --git a/lib/arrow/util/validation.ex b/lib/arrow/util/validation.ex
new file mode 100644
index 000000000..fcde4e06c
--- /dev/null
+++ b/lib/arrow/util/validation.ex
@@ -0,0 +1,26 @@
+defmodule Arrow.Util.Validation do
+  @moduledoc """
+  Utilities for validating changesets in Arrow. Note that many these functions make assumptions
+  about the field names / error messages in your changeset that are specific to this project.
+  """
+  @spec validate_start_date_before_end_date(Ecto.Changeset.t(any())) :: Ecto.Changeset.t(any())
+  def validate_start_date_before_end_date(changeset) do
+    start_date = Ecto.Changeset.get_field(changeset, :start_date)
+    end_date = Ecto.Changeset.get_field(changeset, :end_date)
+
+    cond do
+      is_nil(start_date) or is_nil(end_date) ->
+        changeset
+
+      Date.compare(start_date, end_date) == :gt ->
+        Ecto.Changeset.add_error(
+          changeset,
+          :start_date,
+          "start date must be less than or equal to end date"
+        )
+
+      true ->
+        changeset
+    end
+  end
+end

From 7d7a01d47f035ddbb4a57242ff982f30e77dba19 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 11:42:43 -0500
Subject: [PATCH 15/18] fixup: fix typo

---
 .../live/disruption_v2_live/disruption_v2_view_live.ex          | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex b/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
index 86be9dd48..873a0fa45 100644
--- a/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
+++ b/lib/arrow_web/live/disruption_v2_live/disruption_v2_view_live.ex
@@ -111,7 +111,7 @@ defmodule ArrowWeb.DisruptionV2ViewLive do
     end
   end
 
-  def handle_event("delete_hastus_aexport", %{"export" => export_id}, socket) do
+  def handle_event("delete_hastus_export", %{"export" => export_id}, socket) do
     {parsed_id, _} = Integer.parse(export_id)
     export = Hastus.get_export!(parsed_id)
 

From 8333fe45a396211ce63cb40311a9e1b7f03774f8 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 11:45:33 -0500
Subject: [PATCH 16/18] fixup: more disambiguating trainsformer vs hastus
 export

---
 lib/arrow_web/components/disruption_components.ex             | 4 ++--
 .../disruptionsv2/trainsformer_export_section_test.exs        | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/arrow_web/components/disruption_components.ex b/lib/arrow_web/components/disruption_components.ex
index 4f1662db5..6aacff597 100644
--- a/lib/arrow_web/components/disruption_components.ex
+++ b/lib/arrow_web/components/disruption_components.ex
@@ -493,7 +493,7 @@ defmodule ArrowWeb.DisruptionComponents do
               <div class="col-12 text-right">
                 <.link
                   :if={!@editing}
-                  id={"edit-export-button-#{export.id}"}
+                  id={"edit-trainsformer-export-button-#{export.id}"}
                   class="btn-sm p-0"
                   patch={~p"/disruptions/#{@disruption.id}/trainsformer_export/#{export.id}/edit"}
                 >
@@ -501,7 +501,7 @@ defmodule ArrowWeb.DisruptionComponents do
                 </.link>
                 <.button
                   :if={!@editing}
-                  id={"delete-export-button-#{export.id}"}
+                  id={"delete-trainsformer-export-button-#{export.id}"}
                   class="btn-sm p-0"
                   type="button"
                   phx-click="delete_trainsformer_export"
diff --git a/test/integration/disruptionsv2/trainsformer_export_section_test.exs b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
index a7a3573ec..6280fc685 100644
--- a/test/integration/disruptionsv2/trainsformer_export_section_test.exs
+++ b/test/integration/disruptionsv2/trainsformer_export_section_test.exs
@@ -285,7 +285,7 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
     session_before_delete =
       session
       |> visit("/disruptions/#{disruption.id}/")
-      |> click(Query.css("#edit-hastus-export-button-#{export_id}"))
+      |> click(Query.css("#edit-trainsformer-export-button-#{export_id}"))
       |> click(Query.checkbox("Wednesday"))
       |> fill_in(
         Query.fillable_field("End Date"),
@@ -315,7 +315,7 @@ defmodule Arrow.Integration.Disruptionsv2.TrainsformerExportSectionTest do
 
     # delete second service date
     session_before_delete
-    |> click(Query.css("#edit-hastus-export-button-#{export_id}"))
+    |> click(Query.css("#edit-trainsformer-export-button-#{export_id}"))
     |> click("label span.hero-trash-solid" |> Query.css() |> Query.at(1))
     |> click(text("Save"))
     |> refute_has(text("01/30/2026"))

From fbecb2b72f0a645c78e38edbd2713180c2253618 Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 14:17:22 -0500
Subject: [PATCH 17/18] fixup: fix typos

---
 lib/arrow/disruptions/limit.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/arrow/disruptions/limit.ex b/lib/arrow/disruptions/limit.ex
index 30c1a3fd4..643c8557f 100644
--- a/lib/arrow/disruptions/limit.ex
+++ b/lib/arrow/disruptions/limit.ex
@@ -85,7 +85,7 @@ defmodule Arrow.Disruptions.Limit do
   end
 
   @spec dow_in_date_range(Date.t() | nil, Date.t() | nil) ::
-          MapSet.t(Arrow.Util.Validation.DayOfWeek.day_name())
+          MapSet.t(Arrow.Validation.DayOfWeek.day_name())
   defp dow_in_date_range(start_date, end_date)
        when is_nil(start_date)
        when is_nil(end_date) do
@@ -96,6 +96,6 @@ defmodule Arrow.Disruptions.Limit do
     start_date
     |> Date.range(end_date)
     |> Stream.take(7)
-    |> MapSet.new(&(&1 |> Date.day_of_week() |> Arrow.Util.Validation.DayOfWeek.get_day_name()))
+    |> MapSet.new(&(&1 |> Date.day_of_week() |> Arrow.Util.DayOfWeek.get_day_name()))
   end
 end

From 487bcd9b0b708c12b9dc475e82b52bc14ef6360e Mon Sep 17 00:00:00 2001
From: JD <jd@rudiejd.io>
Date: Wed, 4 Feb 2026 14:38:14 -0500
Subject: [PATCH 18/18] fixup: dialyze

---
 lib/arrow/disruptions/limit.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/arrow/disruptions/limit.ex b/lib/arrow/disruptions/limit.ex
index 643c8557f..58b1f3ef2 100644
--- a/lib/arrow/disruptions/limit.ex
+++ b/lib/arrow/disruptions/limit.ex
@@ -85,7 +85,7 @@ defmodule Arrow.Disruptions.Limit do
   end
 
   @spec dow_in_date_range(Date.t() | nil, Date.t() | nil) ::
-          MapSet.t(Arrow.Validation.DayOfWeek.day_name())
+          MapSet.t(Arrow.Util.DayOfWeek.day_name())
   defp dow_in_date_range(start_date, end_date)
        when is_nil(start_date)
        when is_nil(end_date) do