Maybe/app/views/messages/_chat_form.html.erb

<%# locals: (chat: nil, message_hint: nil) %>

<div id="chat-form" class="space-y-2">
  <% model = chat && chat.persisted? ? [chat, Message.new] : Chat.new %>

  <%= form_with model: model,
                class: "flex lg:flex-col gap-2 bg-container px-2 py-1.5 rounded-full lg:rounded-lg shadow-border-xs",
                data: { chat_target: "form" } do |f| %>

    <%# In the future, this will be a dropdown with different AI models %>
    <%= f.hidden_field :ai_model, value: "gpt-4o" %>

    <%= f.text_area :content, placeholder: "Ask anything ...", value: message_hint,
                  class: "w-full border-0 focus:ring-0 text-sm resize-none px-1 bg-transparent",
                  data: { chat_target: "input", action: "input->chat#autoResize keydown->chat#handleInputKeyDown" },
                  rows: 1 %>

    <div class="flex items-center justify-between gap-1">
      <div class="items-center gap-1 hidden lg:flex">
        <%# These are disabled for now, but in the future, will all open specific menus with their own context and search %>
        <% ["plus", "command", "at-sign", "mouse-pointer-click"].each do |icon| %>
          <%= icon(icon, as_button: true, disabled: true, class: "cursor-not-allowed", title: "Coming soon") %>
        <% end %>
      </div>

      <%= icon("arrow-up", as_button: true, type: "submit") %>
    </div>
  <% end %>

  <p class="text-xs text-secondary">AI responses are informational only and are not financial advice.</p>
</div>