Send multiple session dates to GOV.UK Notify

This updates the GOV.UK Notify personalisation to include all the
session dates. I've already updated all the templates in GOV.UK Notify
to use these new personalisation variables.

app/lib/govuk_notify_personalisation.rb

@@ -38,15 +38,17 @@ def call
  day_month_year_of_vaccination:,
  full_and_preferred_patient_name:,
  location_name:,
+ next_session_date:,
+ next_session_dates:,
+ next_session_dates_or:,
  parent_name:,
  programme_name:,
  reason_did_not_vaccinate:,
  reason_for_refusal:,
- session_date:,
- session_short_date:,
  short_patient_name:,
  short_patient_name_apos:,
  show_additional_instructions:,
+ subsequent_session_dates_offered_message:,
  survey_deadline_date:,
  team_email:,
  team_name:,
@@ -115,6 +117,24 @@ def location_name
  session.location&.name
  end
 
+ def next_session_date
+ session.today_or_future_dates.first&.to_fs(:short_day_of_week)
+ end
+
+ def next_session_dates
+ session
+ .today_or_future_dates
+ .map { _1.to_fs(:short_day_of_week) }
+ .to_sentence
+ end
+
+ def next_session_dates_or
+ session
+ .today_or_future_dates
+ .map { _1.to_fs(:short_day_of_week) }
+ .to_sentence(last_word_connector: ", or ", two_words_connector: " or ")
+ end
+
  def parent_name
  consent_form&.parent_name || parent&.name
  end
@@ -140,16 +160,6 @@ def reason_for_refusal
  I18n.t("mailers.consent_form_mailer.reasons_for_refusal.#{reason}")
  end
 
- def session_date
- # TODO: Handle multiple dates.
- session.dates.map(&:value).min.to_fs(:short_day_of_week)
- end
-
- def session_short_date
- # TODO: Handle multiple dates.
- session.dates.map(&:value).min.to_fs(:short)
- end
-
  def short_patient_name
  [
  consent_form&.common_name,
@@ -171,6 +181,15 @@ def show_additional_instructions
  vaccination_record.already_had? ? "no" : "yes"
  end
 
+ def subsequent_session_dates_offered_message
+ dates = session.today_or_future_dates.drop(1)
+ return if dates.empty?
+
+ "If they’re not seen, they’ll be offered the vaccination on #{
+ dates.map { _1.to_fs(:short_day_of_week) }.to_sentence
+ }."
+ end
+
  def survey_deadline_date
  recorded_at = consent_form&.recorded_at || consent&.recorded_at
  return if recorded_at.nil?

spec/lib/govuk_notify_personalisation_spec.rb

@@ -32,8 +32,8 @@
  location:,
  team:,
  programme:,
- close_consent_at: Date.new(2024, 1, 1),
- date: Date.new(2024, 1, 1)
+ close_consent_at: Date.new(2026, 1, 1),
+ date: Date.new(2026, 1, 1)
  )
  end
  let(:consent) { nil }
@@ -44,15 +44,16 @@
  it do
  expect(personalisation).to eq(
  {
- close_consent_date: "Monday 1 January",
+ close_consent_date: "Thursday 1 January",
  close_consent_short_date: "1 January",
  consent_link:
  "http://localhost:4000/sessions/#{session.id}/consents/start",
  full_and_preferred_patient_name: "John Smith",
  location_name: "Hogwarts",
+ next_session_date: "Thursday 1 January",
+ next_session_dates: "Thursday 1 January",
+ next_session_dates_or: "Thursday 1 January",
  programme_name: "Flu",
- session_date: "Monday 1 January",
- session_short_date: "1 January",
  short_patient_name: "John",
  short_patient_name_apos: "John’s",
  team_email: "[email protected]",
@@ -63,6 +64,22 @@
  )
  end
 
+ context "with multiple dates" do
+ before { create(:session_date, session:, value: Date.new(2026, 1, 2)) }
+
+ it do
+ expect(personalisation).to match(
+ hash_including(
+ next_session_date: "Thursday 1 January",
+ next_session_dates: "Thursday 1 January and Friday 2 January",
+ next_session_dates_or: "Thursday 1 January or Friday 2 January",
+ subsequent_session_dates_offered_message:
+ "If they’re not seen, they’ll be offered the vaccination on Friday 2 January."
+ )
+ )
+ end
+ end
+
  context "with a consent" do
  let(:consent) do
  create(:consent, :refused, programme:, recorded_at: Date.new(2024, 1, 1))