Maybe/app/views/budgets/_picker.html.erb

<%# locals: (family:, year:) %>

<%= turbo_frame_tag "budget_picker" do %>
  <div class="bg-white shadow-border-xs p-3 rounded-xl space-y-4">
    <div class="flex items-center gap-2 justify-between">
      <% last_month_of_previous_year = Date.new(year - 1, 12, 1) %>

      <% if Budget.budget_date_valid?(last_month_of_previous_year, family: family) %>
        <%= link_to picker_budgets_path(year: year - 1), data: { turbo_frame: "budget_picker" }, class: "p-2 flex items-center justify-center hover:bg-alpha-black-25 rounded-md" do %>
          <%= lucide_icon "chevron-left", class: "w-5 h-5 shrink-0 text-secondary" %>
        <% end %>
      <% else %>
        <span class="p-2 flex items-center justify-center text-gray-300 rounded-md">
          <%= lucide_icon "chevron-left", class: "w-5 h-5 shrink-0 text-subdued" %>
        </span>
      <% end %>

      <span class="w-40 text-center px-3 py-2 border border-tertiary rounded-md" data-budget-picker-target="year">
        <%= year %>
      </span>

      <% first_month_of_next_year = Date.new(year + 1, 1, 1) %>

      <% if Budget.budget_date_valid?(first_month_of_next_year, family: family) %>
        <%= link_to picker_budgets_path(year: year + 1), data: { turbo_frame: "budget_picker" }, class: "p-2 flex items-center justify-center hover:bg-alpha-black-25 rounded-md" do %>
          <%= lucide_icon "chevron-right", class: "w-5 h-5 shrink-0 text-secondary" %>
        <% end %>
      <% else %>
        <span class="p-2 flex items-center justify-center text-gray-300 rounded-md">
          <%= lucide_icon "chevron-right", class: "w-5 h-5 shrink-0 text-subdued" %>
        </span>
      <% end %>
    </div>

    <div class="grid grid-cols-3 gap-2 text-sm text-center font-medium">
      <% Date::ABBR_MONTHNAMES.compact.each do |month_name| %>
        <% date = Date.strptime("#{month_name}-#{year}", "%b-%Y") %>
        <% param_key = Budget.date_to_param(date) %>

        <% if Budget.budget_date_valid?(date, family: family) %>
          <%= link_to month_name, budget_path(param_key), data: { turbo_frame: "_top" }, class: "btn btn--ghost" %>
        <% else %>
          <span class="px-3 py-2 text-subdued rounded-md"><%= month_name %></span>
        <% end %>
      <% end %>
    </div>
  </div>
<% end %>