upload template from URL

app/controllers/templates_uploads_controller.rb

@@ -3,20 +3,55 @@
 class TemplatesUploadsController < ApplicationController
   load_and_authorize_resource :template, parent: false
 
+  layout 'plain'
+
+  def show; end
+
   def create
+    url_params = create_file_params_from_url if params[:url].present?
+
     @template.account = current_account
     @template.author = current_user
     @template.folder = TemplateFolders.find_or_create_by_name(current_user, params[:folder_name])
-    @template.name = File.basename(params[:files].first.original_filename, '.*')
+    @template.name = File.basename((url_params || params)[:files].first.original_filename, '.*')
 
     @template.save!
 
-    documents = Templates::CreateAttachments.call(@template, params)
+    documents = Templates::CreateAttachments.call(@template, url_params || params)
 
     schema = documents.map { |doc| { attachment_uuid: doc.uuid, name: doc.filename.base } }
 
     @template.update!(schema:)
 
     redirect_to edit_template_path(@template)
+  rescue StandardError => e
+    Rollbar.error(e) if defined?(Rollbar)
+
+    redirect_to root_path, alert: 'Unable to upload file'
+  end
+
+  private
+
+  def create_file_params_from_url
+    tempfile = Tempfile.new
+    tempfile.binmode
+    tempfile.write(conn.get(params[:url]).body)
+    tempfile.rewind
+
+    file = ActionDispatch::Http::UploadedFile.new(
+      tempfile:,
+      filename: File.basename(
+        URI.decode_www_form_component(params[:filename].presence || params[:url])
+      ),
+      type: Marcel::MimeType.for(tempfile)
+    )
+
+    { files: [file] }
+  end
+
+  def conn
+    Faraday.new do |faraday|
+      faraday.response :follow_redirects
+    end
   end
 end

app/javascript/application.js

@@ -18,6 +18,7 @@ import AutoresizeTextarea from './elements/autoresize_textarea'
 import SubmittersAutocomplete from './elements/submitter_autocomplete'
 import FolderAutocomplete from './elements/folder_autocomplete'
 import SignatureForm from './elements/signature_form'
+import SubmitForm from './elements/submit_form'
 
 import * as TurboInstantClick from './lib/turbo_instant_click'
 
@@ -49,6 +50,7 @@ window.customElements.define('autoresize-textarea', AutoresizeTextarea)
 window.customElements.define('submitters-autocomplete', SubmittersAutocomplete)
 window.customElements.define('folder-autocomplete', FolderAutocomplete)
 window.customElements.define('signature-form', SignatureForm)
+window.customElements.define('submit-form', SubmitForm)
 
 document.addEventListener('turbo:before-fetch-request', encodeMethodIntoRequestBody)
 document.addEventListener('turbo:submit-end', async (event) => {

app/javascript/elements/submit_form.js

@@ -0,0 +1,5 @@
+export default class extends HTMLElement {
+  connectedCallback () {
+    this.querySelector('form').requestSubmit()
+  }
+}

app/javascript/template_builder/builder.vue

@@ -31,6 +31,7 @@
             :href="`/templates/${template.id}/submissions/new`"
             data-turbo-frame="modal"
             class="btn btn-primary text-base"
+            @click="maybeShowEmptyTemplateAlert"
           >
             <IconUsersPlus
               width="20"
@@ -691,14 +692,25 @@ export default {
 
       this.save()
     },
-    onSaveClick () {
-      this.isSaving = true
+    maybeShowEmptyTemplateAlert (e) {
+      if (!this.template.fields.length) {
+        e.preventDefault()
 
-      this.save().then(() => {
-        window.Turbo.visit(`/templates/${this.template.id}`)
-      }).finally(() => {
-        this.isSaving = false
-      })
+        alert('Please draw fields to prepare the document.')
+      }
+    },
+    onSaveClick () {
+      if (this.template.fields.length) {
+        this.isSaving = true
+
+        this.save().then(() => {
+          window.Turbo.visit(`/templates/${this.template.id}`)
+        }).finally(() => {
+          this.isSaving = false
+        })
+      } else {
+        alert('Please draw fields to prepare the document.')
+      }
     },
     scrollToArea (area) {
       const documentRef = this.documentRefs.find((a) => a.document.uuid === area.attachment_uuid)

app/views/templates_uploads/show.html.erb

@@ -0,0 +1,19 @@
+<div class="h-screen">
+  <div
+    class="text-center p-8 h-full flex items-center justify-center"
+    >
+    <div>
+      <%= render 'shared/logo', width: 50, height: 50, class: 'mx-auto animate-bounce' %>
+      <span>
+        Processing...
+      </span>
+    </div>
+  </div>
+</div>
+<submit-form>
+  <%= form_for '', url: templates_upload_path, method: :post, class: 'hidden' do %>
+    <button type="submit"></button>
+    <input name="url" value="<%= params[:url] %>">
+    <input name="filename" value="<%= params[:filename] %>">
+  <% end %>
+</submit-form>