attachment backend use

server/app/mailer/dev/mock_campaign.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-import json
-import tempfile
 from email import policy
 from email.message import EmailMessage
 from pathlib import Path
@@ -14,6 +12,10 @@ from app.mailer.campaign.loader import load_campaign_config
 from app.mailer.campaign.validation import validate_campaign_config
 from app.mailer.messages.builder import build_campaign_messages
 from app.mailer.messages.models import MessageAddress, MessageDraft, MessageValidationStatus
+from app.storage.campaign_attachments import (
+    annotate_built_messages_with_managed_files,
+    prepared_campaign_snapshot,
+)
 from app.mailer.dev.mock_mailbox import (
     clear_records,
     consume_fail_next_imap,
@@ -147,13 +149,18 @@ def run_mock_campaign_send(
     if clear_mailbox:
         clear_records()
 
-    with tempfile.TemporaryDirectory(prefix="multimailer-mock-send-") as temp_dir:
-        temp_path = Path(temp_dir)
-        campaign_path = temp_path / f"campaign-{version.id}.json"
-        campaign_path.write_text(json.dumps(version.raw_json, ensure_ascii=False, indent=2), encoding="utf-8")
-        config = load_campaign_config(campaign_path)
-        validation_report = validate_campaign_config(config, campaign_file=campaign_path, check_files=check_files)
-        build_result = build_campaign_messages(config, campaign_file=campaign_path, write_eml=False)
+    with prepared_campaign_snapshot(
+        session,
+        tenant_id=tenant_id,
+        campaign_id=campaign.id,
+        raw_json=version.raw_json if isinstance(version.raw_json, dict) else {},
+        include_bytes=True,
+        prefix="multimailer-mock-send-",
+    ) as prepared:
+        config = load_campaign_config(prepared.path)
+        validation_report = validate_campaign_config(config, campaign_file=prepared.path, check_files=check_files)
+        build_result = build_campaign_messages(config, campaign_file=prepared.path, write_eml=False)
+        annotate_built_messages_with_managed_files(build_result.built_messages, prepared.managed_files_by_local_path)
 
         send_results: list[dict[str, Any]] = []
         sent_count = 0