dont use S3 directly allow to use any document url (document service agnostic)

lib/provider_service_web/controllers/template_controller.ex

@@ -13,7 +13,6 @@ defmodule ProviderServiceWeb.TemplateController do
     RemoveProviderTemplate
   }
 
-  alias ProviderService.S3
   alias ProviderServiceWeb.Schemas.Provider, as: PS
 
   operation(:index,
@@ -37,65 +36,41 @@ defmodule ProviderServiceWeb.TemplateController do
   end
 
   operation(:upload_template,
-    summary: "Upload solicitation template",
-    description: "Upload a fillable PDF. Fields are auto-discovered via solicitation_service.",
+    summary: "Register template by document URL",
+    description: "Register a template document URL for a provider.",
     parameters: [
       provider_id: [in: :path, type: :string, required: true]
     ],
     request_body:
-      {"Multipart PDF upload", "multipart/form-data", PS.UploadTemplateRequest, required: true},
+      {"Document URL payload", "application/json", PS.UploadTemplateRequest, required: true},
     responses: [
       created: {"Template registered", "application/json", PS.UploadTemplateResponse}
     ]
   )
 
   def upload_template(conn, %{"provider_id" => provider_id} = params) do
-    # %Plug.Upload{}
-    upload = params["file"]
+    document_url = params["document_url"]
     policy_type = params["policy_type"]
     client_type = params["client_type"]
 
     template_id = Ecto.UUID.generate()
-    s3_key = "templates/#{provider_id}/#{policy_type}/#{client_type}/#{template_id}.pdf"
 
-    # Upload to S3/MinIO
-    case S3.upload(upload.path, s3_key) do
+    cmd = %AddProviderTemplate{
+      provider_id: provider_id,
+      template_id: template_id,
+      client_type: client_type,
+      policy_type: policy_type,
+      document_url: document_url
+    }
+
+    case ProviderService.CommandedApp.dispatch(cmd) do
       :ok ->
-        # Discover AcroForm fields via solicitation_service
-        fields = discover_fields(s3_key)
-
-        cmd = %AddProviderTemplate{
-          provider_id: provider_id,
-          template_id: template_id,
-          client_type: client_type,
-          policy_type: policy_type,
-          s3_key: s3_key,
-          fields: fields
-        }
-
-        case ProviderService.CommandedApp.dispatch(cmd) do
-          :ok ->
-            conn
-            |> put_status(:created)
-            |> json(%{template_id: template_id, s3_key: s3_key, fields: fields})
-
-          {:error, reason} ->
-            conn |> put_status(:unprocessable_entity) |> json(%{error: reason})
-        end
+        conn
+        |> put_status(:created)
+        |> json(%{template_id: template_id, document_url: document_url})
 
       {:error, reason} ->
-        conn
-        |> put_status(:internal_server_error)
-        |> json(%{error: "S3 upload failed: #{reason}"})
-    end
-  end
-
-  defp discover_fields(s3_key) do
-    url = Application.get_env(:provider_service, :solicitation_service_url)
-
-    case Req.get("#{url}/api/solicitations/templates/fields", params: [s3_key: s3_key]) do
-      {:ok, %{status: 200, body: %{"fields" => fields}}} -> fields
-      _ -> []
+        conn |> put_status(:unprocessable_entity) |> json(%{error: reason})
     end
   end