Finish Schoolhouse programming submission flow

automation/README.md

@@ -34,13 +34,21 @@ automation/bin/karakeep_api.py /api/health --raw-path --pretty
 - `bin/pd_backup_sync_to_serenity.sh` — `rsync`s configured backup/config roots to Serenity
 - `bin/run_pd_backups.sh` — wrapper that runs both steps in order
 
-These scripts are staged repo-side only. They still need:
+These scripts are the live PD backup runner model.
+
+Repo-side deployment prerequisites remain:
 
 1. real values in `.env`
 2. a writable dump destination on PD
 3. SSH trust / key path for Serenity (`root@10.5.1.5` by default)
    - recommended known_hosts path on PD: `/home/truenas_admin/.ssh/known_hosts`
-4. a real scheduler (cron/systemd timer/n8n) on the live host
+4. a real scheduler on the live host
+
+Current documented live state:
+
+- the PD → Serenity backup flow is the intended deployed model
+- root cron on PD is the preferred scheduler
+- first-run verification and the deployed status are tracked in `docs/operations/PD_BACKUP_DEPLOYMENT.md` and `docs/planning/TODO.md`
 
 ## PD / TrueNAS deployment recommendation
 

home/doris-schoolhouse/DEPLOYMENT.md

@@ -66,3 +66,26 @@ Then verify:
 - assignment intake confirms into n8n/Paperless
 - recording conversion works inside container
 - recording downstream workflow returns success
+- browser uploads return to `/assignments/upload` with a success notice instead of rendering raw JSON
+- programming-class uploads create one `source_bundle` submission and immediately queue the Paperless receipt upload
+
+## Serenity backup on NOMAD
+
+If Schoolhouse submission bundles should survive a NOMAD disk problem, back up `/opt/doris-schoolhouse/data` to Serenity.
+
+Current live helper:
+
+```bash
+/opt/doris-schoolhouse/bin/backup-to-serenity.sh
+```
+
+Behavior:
+- mounts Serenity NFS export `10.5.1.5:/mnt/user/data` at `/mnt/serenity-data` when needed
+- mirrors `/opt/doris-schoolhouse/data/` into `/mnt/serenity-data/backups/nomad/doris-schoolhouse/data/`
+- writes `last_success_utc.txt` and `source_host.txt` markers beside the mirrored data
+
+Suggested cron on NOMAD:
+
+```cron
+40 2 * * * /opt/doris-schoolhouse/bin/backup-to-serenity.sh >> /opt/doris-schoolhouse/logs/backup-to-serenity.log 2>&1
+```

home/doris-schoolhouse/README.md

@@ -6,7 +6,7 @@ Desktop-first local web app for school intake, recordings, D2L sync, and Paperle
 
 This app gives John a fast local UI to:
 
-- upload assignment turn-ins
+- upload assignment turn-ins, with programming-class source files bundled into one archived submission artifact
 - upload class recordings
 - confirm suggested metadata
 - track assignment status through grading
@@ -83,11 +83,28 @@ Useful helpers now included:
 ```bash
 bin/check-env.sh
 bin/apply-postgres-schema.sh
-bin/test-assignment-handoff.sh <file> <class_name> [assignment_name]
+bin/test-assignment-handoff.sh <file> [more_files ...] <class_name> [assignment_name]
 bin/test-recording-handoff.sh <file> <class_name>
 ```
 
 These are safe prep helpers. The handoff scripts are dry-run previews; they print the exact curl commands rather than firing them automatically.
+Assignment intake accepts either a legacy single `file` field or the newer multi-file `files` field. Programming-class uploads are normalized into one source-bundle zip per submission version, with a manifest and source-listing sidecar kept alongside the bundle locally. For Paperless archival, Schoolhouse uploads a generated PDF submission receipt/listing while keeping the real source bundle zip as the local canonical artifact.
+
+Browser submits now auto-confirm into Paperless before redirecting back to `/assignments/upload`. The success notice reports the resulting Paperless queue state, so a normal web upload should no longer stop at `uploaded-local` unless archival actually failed.
+
+## Serenity backup
+
+On NOMAD, the canonical local Schoolhouse artifacts live under `/opt/doris-schoolhouse/data`. The helper `bin/backup-to-serenity.sh` mounts Serenity's NFS export at `/mnt/serenity-data` if needed and mirrors that data tree into:
+
+`/mnt/serenity-data/backups/nomad/doris-schoolhouse/data`
+
+Recommended daily cron on NOMAD:
+
+```cron
+40 2 * * * /opt/doris-schoolhouse/bin/backup-to-serenity.sh >> /opt/doris-schoolhouse/logs/backup-to-serenity.log 2>&1
+```
+
+This keeps the real source bundles, receipt PDFs, manifests, and other Schoolhouse runtime data copied onto Serenity without depending on broken SSH trust from NOMAD.
 
 ## Helper scripts
 

home/doris-schoolhouse/app/routes/api_assignments.py

@@ -1,9 +1,12 @@
 import hashlib
 from pathlib import Path
+from typing import Any
 
-from fastapi import APIRouter, Form, HTTPException, UploadFile
+from fastapi import APIRouter, File, Form, HTTPException, Request, UploadFile
+from fastapi.responses import RedirectResponse
 
 from app.config import settings
+from app.services.bundles import SubmissionBundleService
 from app.services.d2l import D2LService
 from app.services.paperless import PaperlessService
 from app.services.repository import get_repository
@@ -17,6 +20,74 @@ repo = get_repository()
 d2l = D2LService()
 paperless = PaperlessService()
 webhooks = WebhookService()
+bundles = SubmissionBundleService()
+
+
+def _confirm_submission_to_paperless(current: dict) -> dict:
+    handoff = paperless.assignment_intake_payload(current)
+    file_path = current.get("stored_path") or current.get("local_file")
+    if not file_path or not Path(file_path).exists():
+        raise HTTPException(status_code=400, detail="Stored upload file is missing.")
+    fields = {
+        "class_name": handoff["class_name"],
+        "assignment_name": handoff["assignment_name"],
+        "submission_kind": handoff["submission_kind"],
+        "notes": handoff.get("notes", ""),
+        "source": handoff.get("source", "doris-schoolhouse"),
+    }
+    for optional_key in ("semester", "course_code", "paper_kind", "telegram_chat_id", "telegram_message_id"):
+        value = handoff.get(optional_key)
+        if value:
+            fields[optional_key] = value
+    artifact_kind = handoff.get("artifact_kind") or "document"
+    if artifact_kind == "source_bundle":
+        paperless_response = paperless.upload_source_bundle_receipt(current)
+        enrichment = paperless.enrich_direct_submission(current, paperless_response)
+        response = {
+            "ok": True,
+            "status_code": 200,
+            "body": paperless_response,
+            "mode": "direct-paperless",
+            "enrichment": enrichment,
+        }
+        task_id = paperless_response.get("task_id") or paperless_response.get("id")
+        body_obj = {
+            "paperless_document_id": enrichment.get("document_id"),
+            "paperless_title": enrichment.get("title") or paperless.build_submission_title(current),
+            "paperless_task_id": task_id,
+            "paperless_metadata": enrichment.get("metadata_payload"),
+        }
+        ok = True
+    else:
+        if handoff.get("artifact_kind"):
+            fields["artifact_kind"] = str(handoff["artifact_kind"])
+        if handoff.get("file_count"):
+            fields["file_count"] = str(handoff["file_count"])
+        response = webhooks.post_multipart(handoff["target_url"], fields, "document", file_path)
+        body = response.get("body", {}) if isinstance(response, dict) else {}
+        body_obj = body[0] if isinstance(body, list) and body and isinstance(body[0], dict) else (body if isinstance(body, dict) else {})
+        ok = bool(response.get("ok", False)) if isinstance(response, dict) else False
+    updates = {
+        "status": "paperless-queued" if ok else "paperless-error",
+        "confirmed_at": store.now(),
+        "webhook_response": response,
+        "paperless_document_id": body_obj.get("paperless_document_id") or body_obj.get("document_id"),
+        "paperless_title": body_obj.get("paperless_title") or body_obj.get("title") or handoff.get("assignment_name"),
+        "paperless_task_id": body_obj.get("paperless_task_id"),
+    }
+    updated = repo.update_submission(str(current.get("id")), updates) or current
+    grade_note = None
+    if ok and updated.get("assignment_id"):
+        grade_note = paperless.append_grade_note_if_available(str(updated.get("assignment_id")))
+    return {
+        "status": "ok" if ok else "error",
+        "submission": updated,
+        "submissions": [updated],
+        "handoff": handoff,
+        "webhook": [response],
+        "grade_note": grade_note,
+        "file_count": handoff.get("file_count") or 1,
+    }
 
 
 @router.get("")
@@ -41,7 +112,9 @@ async def list_submissions():
 
 @router.post("/intake")
 async def intake_assignment(
-    file: UploadFile,
+    request: Request,
+    files: list[UploadFile] | None = File(None),
+    file: UploadFile | None = File(None),
     class_id: str = Form(...),
     class_name: str = Form(...),
     assignment_name: str = Form(...),
@@ -59,16 +132,43 @@ async def intake_assignment(
     matching = next((item for item in assignments if item.get("title") == assignment_name), None)
     if not matching:
         raise HTTPException(status_code=404, detail="Assignment not found in cached D2L data for selected class.")
+    uploads = list(files or [])
+    if file is not None:
+        uploads.append(file)
+    if not uploads:
+        raise HTTPException(status_code=400, detail="At least one upload is required.")
 
     upload_root = Path(settings.upload_tmp_dir)
     upload_root.mkdir(parents=True, exist_ok=True)
-    safe_name = Path(file.filename or "upload.bin").name
-    submission_id = store.new_id("submission")
-    stored_path = upload_root / f"{submission_id}-{safe_name}"
-    payload = await file.read()
-    stored_path.write_bytes(payload)
-    checksum = hashlib.sha256(payload).hexdigest()
+    course = next((item for item in d2l.get_courses() if str(item.get("d2l_course_id") or item.get("id")) == str(class_id)), None)
+    duplicate_names: dict[str, int] = {}
+    prepared_uploads: list[dict[str, Any]] = []
 
+    for index, upload in enumerate(uploads, start=1):
+        safe_name = Path(upload.filename or f"upload-{index}.bin").name
+        duplicate_count = duplicate_names.get(safe_name, 0)
+        duplicate_names[safe_name] = duplicate_count + 1
+        if duplicate_count:
+            stem = Path(safe_name).stem
+            suffix = Path(safe_name).suffix
+            safe_name = f"{stem}-{duplicate_count + 1}{suffix}"
+        payload = await upload.read()
+        prepared_uploads.append({
+            "filename": safe_name,
+            "payload": payload,
+            "mime_type": upload.content_type or "application/octet-stream",
+        })
+
+    submission_id = store.new_id("submission")
+    bundle = bundles.build_bundle(
+        upload_root=upload_root,
+        submission_id=submission_id,
+        class_name=class_name,
+        assignment_name=assignment_name,
+        version_label=version,
+        uploads=prepared_uploads,
+        notes=notes,
+    )
     record = {
         "id": submission_id,
         "assignment_id": matching["id"],
@@ -77,6 +177,7 @@ async def intake_assignment(
         "assignment_name": assignment_name,
         "version_label": version,
         "submission_kind": submission_kind,
+        "artifact_kind": bundle["artifact_kind"],
         "semester": semester or None,
         "course_code": course_code or (course.get("code") if course else None),
         "paper_kind": paper_kind or None,
@@ -84,17 +185,44 @@ async def intake_assignment(
         "telegram_chat_id": telegram_chat_id or None,
         "telegram_message_id": telegram_message_id or None,
         "notes": notes,
-        "original_filename": safe_name,
-        "stored_path": str(stored_path),
-        "mime_type": file.content_type or "application/octet-stream",
-        "file_size_bytes": len(payload),
-        "checksum_sha256": checksum,
+        "original_filename": bundle["bundle_filename"],
+        "stored_path": bundle["bundle_path"],
+        "stored_paths": [item["stored_path"] for item in bundle["file_manifest_json"]],
+        "bundle_path": bundle["bundle_path"],
+        "bundle_filename": bundle["bundle_filename"],
+        "source_listing_path": bundle["source_listing_path"],
+        "receipt_pdf_path": bundle["receipt_pdf_path"],
+        "file_manifest_json": bundle["file_manifest_json"],
+        "mime_type": bundle["bundle_mime_type"],
+        "file_size_bytes": bundle["bundle_size_bytes"],
+        "checksum_sha256": bundle["bundle_checksum_sha256"],
         "status": "uploaded-local",
         "received_at": store.now(),
+        "batch_id": None,
+        "file_count": bundle["file_count"],
+        "file_index": None,
+        "combined_source_checksum_sha256": bundle["combined_source_checksum_sha256"],
     }
     record["paperless_handoff"] = paperless.assignment_intake_payload(record)
     created = repo.create_submission(record)
-    return {"status": "ok", "submission": created, "backend": repo.backend}
+    accept = request.headers.get("accept", "")
+    auto_confirmed = None
+    if "text/html" in accept:
+        auto_confirmed = _confirm_submission_to_paperless(created)
+        created = auto_confirmed["submission"]
+    response_payload = {
+        "status": "ok",
+        "submission": created,
+        "submissions": [created],
+        "batch_id": None,
+        "file_count": bundle["file_count"],
+        "paperless": auto_confirmed,
+        "backend": repo.backend,
+    }
+    if "text/html" in accept:
+        redirect_url = "/assignments/upload?submitted=" + str(created["id"]) + "&file_count=" + str(bundle["file_count"]) + "&artifact_kind=" + str(created.get("artifact_kind", "document")) + "&paperless_status=" + str(created.get("status", "uploaded-local"))
+        return RedirectResponse(url=redirect_url, status_code=303)
+    return response_payload
 
 
 @router.post("/{submission_id}/confirm-paperless")
@@ -103,33 +231,7 @@ async def confirm_assignment_paperless(submission_id: str):
     current = next((item for item in submissions if str(item.get("id")) == str(submission_id)), None)
     if not current:
         raise HTTPException(status_code=404, detail="Submission not found.")
-    handoff = paperless.assignment_intake_payload(current)
-    file_path = current.get("stored_path") or current.get("local_file")
-    if not file_path or not Path(file_path).exists():
-        raise HTTPException(status_code=400, detail="Stored upload file is missing.")
-    fields = {
-        "class_name": handoff["class_name"],
-        "assignment_name": handoff["assignment_name"],
-        "submission_kind": handoff["submission_kind"],
-        "notes": handoff.get("notes", ""),
-        "source": handoff.get("source", "doris-schoolhouse"),
-    }
-    for optional_key in ("semester", "course_code", "paper_kind", "telegram_chat_id", "telegram_message_id"):
-        value = handoff.get(optional_key)
-        if value:
-            fields[optional_key] = value
-    response = webhooks.post_multipart(handoff["target_url"], fields, "document", file_path)
-    body = response.get("body", {}) if isinstance(response, dict) else {}
-    body_obj = body[0] if isinstance(body, list) and body and isinstance(body[0], dict) else (body if isinstance(body, dict) else {})
-    ok = bool(response.get("ok", False)) if isinstance(response, dict) else False
-    updated = repo.update_submission(submission_id, {
-        "status": "paperless-queued" if ok else "paperless-error",
-        "confirmed_at": store.now(),
-        "webhook_response": response,
-        "paperless_document_id": body_obj.get("paperless_document_id") or body_obj.get("document_id"),
-        "paperless_title": body_obj.get("paperless_title") or body_obj.get("title") or handoff.get("assignment_name"),
-    })
-    return {"status": "ok" if ok else "error", "submission": updated or current, "handoff": handoff, "webhook": response}
+    return _confirm_submission_to_paperless(current)
 
 
 @router.post("/{assignment_id}/status")

home/doris-schoolhouse/app/services/bundles.py

@@ -0,0 +1,172 @@
+import hashlib
+import json
+from pathlib import Path
+from zipfile import ZIP_DEFLATED, ZipFile
+
+
+def slugify(value: str, fallback: str = "item") -> str:
+    cleaned = "".join(ch.lower() if ch.isalnum() else "-" for ch in (value or fallback))
+    parts = [part for part in cleaned.split("-") if part]
+    return "-".join(parts)[:80] or fallback
+
+
+class SubmissionBundleService:
+    def _wrap_pdf_text(self, text: str, width: int = 96) -> list[str]:
+        wrapped: list[str] = []
+        for raw_line in text.splitlines():
+            line = raw_line.rstrip()
+            if not line:
+                wrapped.append("")
+                continue
+            while len(line) > width:
+                wrapped.append(line[:width])
+                line = line[width:]
+            wrapped.append(line)
+        return wrapped
+
+    def _escape_pdf_text(self, value: str) -> str:
+        return value.replace("\\", "\\\\").replace("(", "\\(").replace(")", "\\)")
+
+    def _write_text_pdf(self, path: Path, title: str, body: str) -> None:
+        lines = self._wrap_pdf_text(f"{title}\n\n{body}")
+        page_height = 792
+        top = 756
+        line_height = 12
+        lines_per_page = 58
+        pages = [lines[i:i + lines_per_page] for i in range(0, len(lines), lines_per_page)] or [[""]]
+
+        objects: list[bytes] = []
+        page_object_numbers: list[int] = []
+        object_number = 4
+        for page_lines in pages:
+            content_lines = ["BT", "/F1 10 Tf", f"72 {top} Td"]
+            first = True
+            for line in page_lines:
+                escaped = self._escape_pdf_text(line)
+                if first:
+                    content_lines.append(f"({escaped}) Tj")
+                    first = False
+                else:
+                    content_lines.append(f"0 -{line_height} Td ({escaped}) Tj")
+            content_lines.append("ET")
+            content_bytes = "\n".join(content_lines).encode("utf-8")
+            page_object_numbers.append(object_number)
+            objects.append(
+                f"{object_number} 0 obj\n<< /Type /Page /Parent 2 0 R /MediaBox [0 0 612 {page_height}] /Contents {object_number + 1} 0 R /Resources << /Font << /F1 3 0 R >> >> >>\nendobj\n".encode("utf-8")
+            )
+            objects.append(
+                f"{object_number + 1} 0 obj\n<< /Length {len(content_bytes)} >>\nstream\n".encode("utf-8") + content_bytes + b"\nendstream\nendobj\n"
+            )
+            object_number += 2
+
+        pages_kids = " ".join(f"{num} 0 R" for num in page_object_numbers)
+        header = b"%PDF-1.4\n"
+        root_objects = [
+            b"1 0 obj\n<< /Type /Catalog /Pages 2 0 R >>\nendobj\n",
+            f"2 0 obj\n<< /Type /Pages /Kids [{pages_kids}] /Count {len(page_object_numbers)} >>\nendobj\n".encode("utf-8"),
+            b"3 0 obj\n<< /Type /Font /Subtype /Type1 /BaseFont /Courier >>\nendobj\n",
+        ]
+        all_objects = root_objects + objects
+        offsets = []
+        current = len(header)
+        for obj in all_objects:
+            offsets.append(current)
+            current += len(obj)
+        xref_start = current
+        xref_lines = [b"xref\n", f"0 {len(all_objects) + 1}\n".encode("utf-8"), b"0000000000 65535 f \n"]
+        for offset in offsets:
+            xref_lines.append(f"{offset:010d} 00000 n \n".encode("utf-8"))
+        trailer = f"trailer\n<< /Size {len(all_objects) + 1} /Root 1 0 R >>\nstartxref\n{xref_start}\n%%EOF\n".encode("utf-8")
+        pdf_bytes = header + b"".join(all_objects) + b"".join(xref_lines) + trailer
+        path.write_bytes(pdf_bytes)
+
+    def build_bundle(
+        self,
+        *,
+        upload_root: Path,
+        submission_id: str,
+        class_name: str,
+        assignment_name: str,
+        version_label: str,
+        uploads: list[dict],
+        notes: str = "",
+    ) -> dict:
+        bundle_root = upload_root / "submission-bundles" / submission_id
+        source_root = bundle_root / "source"
+        source_root.mkdir(parents=True, exist_ok=True)
+
+        manifest_files = []
+        combined_hash = hashlib.sha256()
+        for item in uploads:
+            source_path = source_root / item["filename"]
+            source_path.write_bytes(item["payload"])
+            combined_hash.update(item["payload"])
+            manifest_files.append(
+                {
+                    "filename": item["filename"],
+                    "stored_path": str(source_path),
+                    "mime_type": item["mime_type"],
+                    "size_bytes": len(item["payload"]),
+                    "checksum_sha256": hashlib.sha256(item["payload"]).hexdigest(),
+                }
+            )
+
+        source_listing_path = bundle_root / f"{slugify(assignment_name, 'assignment')}-{slugify(version_label, 'v1')}-source-listing.txt"
+        listing_parts = []
+        for item in manifest_files:
+            listing_parts.append(f"===== {item['filename']} =====\n")
+            listing_parts.append(Path(item["stored_path"]).read_text(encoding="utf-8", errors="replace"))
+            listing_parts.append("\n\n")
+        source_listing_path.write_text("".join(listing_parts), encoding="utf-8")
+
+        manifest_path = bundle_root / "manifest.json"
+        manifest = {
+            "class_name": class_name,
+            "assignment_name": assignment_name,
+            "version_label": version_label,
+            "notes": notes,
+            "file_count": len(manifest_files),
+            "files": manifest_files,
+            "source_listing_path": str(source_listing_path),
+        }
+        manifest_path.write_text(json.dumps(manifest, indent=2, sort_keys=True), encoding="utf-8")
+
+        bundle_name = f"{slugify(class_name, 'class')}-{slugify(assignment_name, 'assignment')}-{slugify(version_label, 'v1')}.zip"
+        bundle_path = bundle_root / bundle_name
+        with ZipFile(bundle_path, "w", compression=ZIP_DEFLATED) as archive:
+            for item in manifest_files:
+                archive.write(item["stored_path"], arcname=item["filename"])
+            archive.write(source_listing_path, arcname=source_listing_path.name)
+            archive.write(manifest_path, arcname="manifest.json")
+
+        receipt_pdf_path = bundle_root / f"{slugify(assignment_name, 'assignment')}-{slugify(version_label, 'v1')}-submission-receipt.pdf"
+        receipt_body = "\n".join([
+            f"Class: {class_name}",
+            f"Assignment: {assignment_name}",
+            f"Version: {version_label}",
+            f"Bundle file: {bundle_name}",
+            f"Source file count: {len(manifest_files)}",
+            "",
+            "Included files:",
+            *[f"- {item['filename']} ({item['size_bytes']} bytes)" for item in manifest_files],
+            "",
+            "Source listing:",
+            source_listing_path.read_text(encoding="utf-8", errors="replace"),
+        ])
+        self._write_text_pdf(receipt_pdf_path, f"{class_name} — {assignment_name} — {version_label}", receipt_body)
+
+        return {
+            "artifact_kind": "source_bundle",
+            "bundle_path": str(bundle_path),
+            "bundle_filename": bundle_name,
+            "bundle_mime_type": "application/zip",
+            "bundle_size_bytes": bundle_path.stat().st_size,
+            "bundle_checksum_sha256": hashlib.sha256(bundle_path.read_bytes()).hexdigest(),
+            "file_manifest_json": manifest_files,
+            "file_count": len(manifest_files),
+            "source_root": str(source_root),
+            "source_listing_path": str(source_listing_path),
+            "receipt_pdf_path": str(receipt_pdf_path),
+            "manifest_path": str(manifest_path),
+            "combined_source_checksum_sha256": combined_hash.hexdigest(),
+        }

home/doris-schoolhouse/app/services/d2l.py

@@ -91,12 +91,23 @@ class D2LService:
             "status": "completed",
         })
         self.repo.save_sync_runs(sync_runs)
+        grade_note_results = []
+        try:
+            from app.services.paperless import PaperlessService
+            paperless = PaperlessService()
+            for item in assignments:
+                result = paperless.append_grade_note_if_available(str(item.get("id")))
+                if result.get("status") != "skipped":
+                    grade_note_results.append(result)
+        except Exception as exc:
+            grade_note_results.append({"status": "error", "reason": str(exc)})
         return {
             "status": "ok",
             "snapshot_path": snapshot.get("source_path"),
             "course_count": len(courses),
             "assignment_count": len(assignments),
             "backend": self.repo.backend,
+            "grade_note_results": grade_note_results,
         }
 
     def get_courses(self) -> list[dict[str, Any]]:

home/doris-schoolhouse/app/services/paperless.py

@@ -1,4 +1,5 @@
 import hashlib
+import re
 from urllib.parse import urljoin
 
 from app.config import settings
@@ -14,6 +15,10 @@ class PaperlessService:
         self.client = PaperlessClient()
 
     def assignment_intake_payload(self, submission: dict) -> dict:
+        local_files = submission.get("stored_paths") or []
+        if not local_files and submission.get("stored_path"):
+            local_files = [submission.get("stored_path")]
+        local_file = submission.get("receipt_pdf_path") or submission.get("bundle_path") or submission.get("stored_path")
         return {
             "target_url": urljoin(settings.n8n_base_url, settings.n8n_assignment_webhook),
             "class_name": submission.get("class_name"),
@@ -26,8 +31,14 @@ class PaperlessService:
             "source": submission.get("source") or "doris-schoolhouse",
             "telegram_chat_id": submission.get("telegram_chat_id"),
             "telegram_message_id": submission.get("telegram_message_id"),
-            "local_file": submission.get("stored_path"),
+            "local_file": local_file,
+            "local_files": local_files,
             "version": submission.get("version_label"),
+            "batch_id": submission.get("batch_id"),
+            "file_count": submission.get("file_count"),
+            "artifact_kind": submission.get("artifact_kind") or "document",
+            "source_listing_path": submission.get("source_listing_path"),
+            "receipt_pdf_path": submission.get("receipt_pdf_path"),
         }
 
     def recording_intake_payload(self, recording: dict) -> dict:
@@ -40,21 +51,122 @@ class PaperlessService:
             "source": "doris-schoolhouse",
         }
 
+    def upload_source_bundle_receipt(self, submission: dict) -> dict:
+        file_path = submission.get("receipt_pdf_path") or submission.get("bundle_path") or submission.get("stored_path")
+        title = self.build_submission_title(submission)
+        return self.client.upload_document(file_path, title)
+
+    def _course_short_label(self, submission: dict) -> str:
+        course_code = str(submission.get("course_code") or "").strip()
+        match = re.search(r"([A-Z]{3,4})_([A-Z]{3,4})_(\d{4})", course_code)
+        if match:
+            return f"{match.group(2)}-{match.group(3)}"
+        class_name = str(submission.get("class_name") or "").strip()
+        match = re.search(r"([A-Za-z]+(?:\s+[A-Za-z]+)*)\s+(\d{4})", class_name)
+        if not match:
+            return class_name
+        words = match.group(1).split()
+        prefix = ''.join(word[0] for word in words[:4]).upper()
+        return f"{prefix}-{match.group(2)}"
+
+    def _course_tag_name(self, submission: dict) -> str | None:
+        label = self._course_short_label(submission)
+        if not label or "-" not in label:
+            return None
+        return label.replace("-", " ").lower()
+
+    def build_submission_title(self, submission: dict) -> str:
+        return " — ".join(
+            part for part in [
+                self._course_short_label(submission) or submission.get("class_name"),
+                submission.get("assignment_name"),
+                submission.get("version_label"),
+                "source bundle" if submission.get("artifact_kind") == "source_bundle" else submission.get("submission_kind"),
+            ] if part
+        )
+
+    def build_direct_metadata_payload(self, submission: dict, current_document: dict | None = None) -> dict:
+        current_document = current_document or {}
+        known_tags = {
+            str(tag.get("name", "")).strip().casefold(): tag
+            for tag in self.client.list_tags()
+        }
+        merged_tags = {
+            int(tag_id)
+            for tag_id in (current_document.get("tags") or [])
+            if str(tag_id).isdigit()
+        }
+        for tag_name in ("school", "assignments", "spring-2026"):
+            tag = known_tags.get(tag_name)
+            if tag and tag.get("id"):
+                merged_tags.add(int(tag["id"]))
+        course_tag_name = self._course_tag_name(submission)
+        if course_tag_name:
+            tag = known_tags.get(course_tag_name)
+            if tag and tag.get("id"):
+                merged_tags.add(int(tag["id"]))
+        if submission.get("artifact_kind") == "source_bundle":
+            for tag_name in ("programming", "java"):
+                tag = known_tags.get(tag_name)
+                if tag and tag.get("id"):
+                    merged_tags.add(int(tag["id"]))
+        payload = {
+            "title": self.build_submission_title(submission),
+            "tags": sorted(merged_tags),
+        }
+        for doc_type in self.client.list_document_types():
+            if str(doc_type.get("name", "")).strip().casefold() == "school" and doc_type.get("id"):
+                payload["document_type"] = int(doc_type["id"])
+                break
+        for correspondent in self.client.list_correspondents():
+            if str(correspondent.get("name", "")).strip().casefold() == "austin peay state university" and correspondent.get("id"):
+                payload["correspondent"] = int(correspondent["id"])
+                break
+        return payload
+
+    def enrich_direct_submission(self, submission: dict, upload_response: dict | None = None) -> dict:
+        upload_response = upload_response or {}
+        task_id = upload_response.get("task_id") or upload_response.get("id") or submission.get("paperless_task_id")
+        if not task_id:
+            raise ValueError("Paperless upload did not return a task id")
+        task = self.client.wait_for_task(str(task_id))
+        status = str(task.get("status") or "").upper()
+        document_id = task.get("related_document")
+        if status != "SUCCESS":
+            duplicate_match = re.search(r"#(\d+)\)", str(task.get("result") or ""))
+            if duplicate_match:
+                document_id = duplicate_match.group(1)
+            else:
+                raise ValueError(f"Paperless task did not complete successfully: {status or 'unknown'}")
+        if not document_id:
+            raise ValueError("Paperless task completed without a related document id")
+        current = self.client.get_document(document_id)
+        payload = self.build_direct_metadata_payload(submission, current)
+        updated = self.client.update_document(document_id, payload)
+        return {
+            "task": task,
+            "document": updated,
+            "document_id": updated.get("id") or current.get("id") or int(document_id),
+            "title": updated.get("title") or payload.get("title"),
+            "metadata_payload": payload,
+        }
+
     def build_grade_note(self, assignment_id: str) -> str:
         submissions = self.repo.list_submissions()
         assignments = {item.get("id"): item for item in self.repo.list_assignments()}
         assignment = assignments.get(str(assignment_id), {})
         linked = [s for s in submissions if str(s.get("assignment_id")) == str(assignment_id)]
         note_lines = [
-            "Grade sync from Doris Schoolhouse",
+            "D2L grade note imported from Doris Schoolhouse.",
             f"Assignment: {assignment.get('title', 'unknown')}",
         ]
         if assignment.get("grade"):
             note_lines.append(f"Grade: {assignment['grade']}")
-        if assignment.get("points"):
-            note_lines.append(f"Points: {assignment['points']}")
-        if assignment.get("comments"):
-            note_lines.append(f"Professor comments: {assignment['comments']}")
+        comments = str(assignment.get("comments") or "").strip()
+        if comments:
+            note_lines.append(f"Comments: {comments}")
+        else:
+            note_lines.append("Comments: No professor comment captured in the D2L scrape.")
         if linked:
             note_lines.append(f"Linked submissions: {len(linked)}")
         return "\n".join(note_lines)
@@ -107,3 +219,17 @@ class PaperlessService:
             "note_hash": note_hash,
             "paperless_response": response,
         }
+
+    def append_grade_note_if_available(self, assignment_id: str) -> dict:
+        assignments = {item.get("id"): item for item in self.repo.list_assignments()}
+        assignment = assignments.get(str(assignment_id), {})
+        if not assignment:
+            return {"status": "skipped", "reason": "assignment-not-found", "assignment_id": assignment_id}
+        if not (assignment.get("grade") or str(assignment.get("comments") or "").strip()):
+            return {"status": "skipped", "reason": "no-grade-or-comments", "assignment_id": assignment_id}
+        linked = [s for s in self.repo.list_submissions() if str(s.get("assignment_id")) == str(assignment_id)]
+        if not linked:
+            return {"status": "skipped", "reason": "no-linked-submissions", "assignment_id": assignment_id}
+        if not any(item.get("paperless_document_id") for item in linked):
+            return {"status": "skipped", "reason": "no-paperless-document-id", "assignment_id": assignment_id}
+        return self.append_grade_note(assignment_id)

home/doris-schoolhouse/app/services/paperless_client.py

@@ -1,4 +1,7 @@
 import json
+import mimetypes
+import time
+from pathlib import Path
 from urllib import request
 from urllib.parse import urljoin
 
@@ -27,5 +30,96 @@ class PaperlessClient:
     def get_document(self, document_id: int | str) -> dict:
         return self._req('GET', f'/api/documents/{document_id}/')
 
+    def update_document(self, document_id: int | str, payload: dict) -> dict:
+        return self._req('PATCH', f'/api/documents/{document_id}/', payload)
+
     def add_note(self, document_id: int | str, note: str) -> dict:
         return self._req('POST', f'/api/documents/{document_id}/notes/', {'note': note})
+
+    def _list_endpoint(self, path: str) -> list[dict]:
+        data = self._req('GET', path)
+        if isinstance(data, list):
+            return data
+        if isinstance(data, dict):
+            results = data.get('results')
+            if isinstance(results, list):
+                return results
+        return []
+
+    def list_tags(self) -> list[dict]:
+        return self._list_endpoint('/api/tags/?page_size=200')
+
+    def create_tag(self, name: str) -> dict:
+        return self._req('POST', '/api/tags/', {'name': name})
+
+    def get_or_create_tag(self, name: str) -> dict:
+        needle = name.strip().casefold()
+        for tag in self.list_tags():
+            if str(tag.get('name', '')).strip().casefold() == needle:
+                return tag
+        return self.create_tag(name)
+
+    def list_document_types(self) -> list[dict]:
+        return self._list_endpoint('/api/document_types/?page_size=200')
+
+    def list_correspondents(self) -> list[dict]:
+        return self._list_endpoint('/api/correspondents/?page_size=200')
+
+    def list_tasks(self, task_id: str | None = None) -> list[dict]:
+        path = '/api/tasks/?page_size=100'
+        if task_id:
+            path += f'&task_id={task_id}'
+        return self._list_endpoint(path)
+
+    def wait_for_task(self, task_id: str, timeout_seconds: int = 90, poll_seconds: float = 1.0) -> dict:
+        deadline = time.time() + timeout_seconds
+        last = {}
+        while time.time() < deadline:
+            tasks = self.list_tasks(task_id=task_id)
+            if tasks:
+                last = tasks[0]
+                status = str(last.get('status') or '').upper()
+                if status in {'SUCCESS', 'FAILURE', 'CANCELLED'}:
+                    return last
+            time.sleep(poll_seconds)
+        return last
+
+    def upload_document(self, file_path: str, title: str) -> dict:
+        path = Path(file_path)
+        boundary = "----DorisSchoolhousePaperlessUpload"
+        mime = mimetypes.guess_type(path.name)[0] or "application/octet-stream"
+        parts: list[bytes] = []
+        for key, value in {"title": title}.items():
+            parts.extend([
+                f"--{boundary}\r\n".encode(),
+                f'Content-Disposition: form-data; name="{key}"\r\n\r\n'.encode(),
+                str(value).encode(),
+                b"\r\n",
+            ])
+        parts.extend([
+            f"--{boundary}\r\n".encode(),
+            f'Content-Disposition: form-data; name="document"; filename="{path.name}"\r\n'.encode(),
+            f"Content-Type: {mime}\r\n\r\n".encode(),
+            path.read_bytes(),
+            b"\r\n",
+            f"--{boundary}--\r\n".encode(),
+        ])
+        body = b"".join(parts)
+        req = request.Request(
+            urljoin(self.base_url, "/api/documents/post_document/"),
+            data=body,
+            headers={
+                "Authorization": f"Token {self.token}",
+                "Accept": "application/json",
+                "Content-Type": f"multipart/form-data; boundary={boundary}",
+            },
+            method="POST",
+        )
+        with request.urlopen(req, timeout=120) as resp:
+            raw = resp.read().decode("utf-8", errors="replace")
+            if not raw:
+                return {}
+            parsed = json.loads(raw)
+            if isinstance(parsed, str):
+                return {"task_id": parsed}
+            return parsed

home/doris-schoolhouse/app/services/repository.py

@@ -227,6 +227,23 @@ class PostgresRepository:
                        s.paperless_note_last_hash,
                        s.submitted_at,
                        s.confirmed_metadata_json,
+                       s.confirmed_metadata_json->>'batch_id' AS batch_id,
+                       s.confirmed_metadata_json->>'file_count' AS file_count,
+                       s.confirmed_metadata_json->>'file_index' AS file_index,
+                       s.confirmed_metadata_json->>'submission_kind' AS submission_kind,
+                       s.confirmed_metadata_json->>'artifact_kind' AS artifact_kind,
+                       s.confirmed_metadata_json->>'course_code' AS course_code,
+                       s.confirmed_metadata_json->>'paper_kind' AS paper_kind,
+                       s.confirmed_metadata_json->>'source' AS source,
+                       s.confirmed_metadata_json->>'notes' AS notes,
+                       s.confirmed_metadata_json->>'received_at' AS received_at,
+                       s.confirmed_metadata_json->>'bundle_path' AS bundle_path,
+                       s.confirmed_metadata_json->>'bundle_filename' AS bundle_filename,
+                       s.confirmed_metadata_json->>'source_listing_path' AS source_listing_path,
+                       s.confirmed_metadata_json->>'receipt_pdf_path' AS receipt_pdf_path,
+                       s.confirmed_metadata_json->>'paperless_task_id' AS paperless_task_id,
+                       s.confirmed_metadata_json->'file_manifest_json' AS file_manifest_json,
+                       s.confirmed_metadata_json->'stored_paths' AS stored_paths,
                        s.confirmed_metadata_json->>'stored_path' AS stored_path,
                        s.confirmed_metadata_json->>'local_file' AS local_file
                   FROM schoolhouse_submission s

home/doris-schoolhouse/app/services/webhooks.py

@@ -6,8 +6,7 @@ from urllib import error, request
 
 
 class WebhookService:
-    def _multipart_body(self, fields: dict[str, str], file_field: str, file_path: str) -> tuple[bytes, str]:
-        boundary = f"----DorisSchoolhouse{uuid.uuid4().hex}"
+    def _multipart_parts_for_fields(self, boundary: str, fields: dict[str, str]) -> list[bytes]:
         parts: list[bytes] = []
         for key, value in fields.items():
             parts.extend([
@@ -16,16 +15,32 @@ class WebhookService:
                 str(value).encode(),
                 b"\r\n",
             ])
+        return parts
+
+    def _multipart_parts_for_file(self, boundary: str, file_field: str, file_path: str) -> list[bytes]:
         path = Path(file_path)
         mime = mimetypes.guess_type(path.name)[0] or "application/octet-stream"
-        parts.extend([
+        return [
             f"--{boundary}\r\n".encode(),
             f'Content-Disposition: form-data; name="{file_field}"; filename="{path.name}"\r\n'.encode(),
             f"Content-Type: {mime}\r\n\r\n".encode(),
             path.read_bytes(),
             b"\r\n",
-            f"--{boundary}--\r\n".encode(),
-        ])
+        ]
+
+    def _multipart_body(self, fields: dict[str, str], file_field: str, file_path: str) -> tuple[bytes, str]:
+        boundary = f"----DorisSchoolhouse{uuid.uuid4().hex}"
+        parts = self._multipart_parts_for_fields(boundary, fields)
+        parts.extend(self._multipart_parts_for_file(boundary, file_field, file_path))
+        parts.append(f"--{boundary}--\r\n".encode())
+        return b"".join(parts), boundary
+
+    def _multipart_body_many(self, fields: dict[str, str], file_field: str, file_paths: list[str]) -> tuple[bytes, str]:
+        boundary = f"----DorisSchoolhouse{uuid.uuid4().hex}"
+        parts = self._multipart_parts_for_fields(boundary, fields)
+        for file_path in file_paths:
+            parts.extend(self._multipart_parts_for_file(boundary, file_field, file_path))
+        parts.append(f"--{boundary}--\r\n".encode())
         return b"".join(parts), boundary
 
     def post_multipart(self, url: str, fields: dict[str, str], file_field: str, file_path: str) -> dict:
@@ -50,3 +65,26 @@ class WebhookService:
         except error.HTTPError as exc:
             raw = exc.read().decode("utf-8", errors="replace")
             return {"ok": False, "status_code": exc.code, "body": parse_raw(raw), "error": str(exc)}
+
+    def post_multipart_many(self, url: str, fields: dict[str, str], file_field: str, file_paths: list[str]) -> dict:
+        body, boundary = self._multipart_body_many(fields, file_field, file_paths)
+        req = request.Request(
+            url,
+            data=body,
+            headers={"Content-Type": f"multipart/form-data; boundary={boundary}"},
+            method="POST",
+        )
+
+        def parse_raw(raw: str):
+            try:
+                return json.loads(raw)
+            except Exception:
+                return {"raw": raw}
+
+        try:
+            with request.urlopen(req, timeout=120) as response:
+                raw = response.read().decode("utf-8", errors="replace")
+                return {"ok": True, "status_code": response.status, "body": parse_raw(raw)}
+        except error.HTTPError as exc:
+            raw = exc.read().decode("utf-8", errors="replace")
+            return {"ok": False, "status_code": exc.code, "body": parse_raw(raw), "error": str(exc)}

home/doris-schoolhouse/app/static/app.css

@@ -31,6 +31,12 @@ nav a { color: var(--accent); text-decoration: none; }
   padding: 20px;
 }
 
+.notice-card { margin-bottom: 20px; }
+.success-card {
+  border-color: #14532d;
+  background: linear-gradient(180deg, rgba(20, 83, 45, 0.28), rgba(17, 24, 39, 0.92));
+}
+
 .form-card { max-width: 760px; }
 .stack { display: grid; gap: 14px; }
 label { display: grid; gap: 8px; color: var(--muted); }

home/doris-schoolhouse/app/static/app.js

@@ -93,7 +93,11 @@ async function loadDashboard() {
     setText('sync-status', `Last sync: ${data.latest_sync.completed_at || 'unknown'} · ${data.latest_sync.assignment_count || 0} assignment rows`);
   }
   renderList('recent-assignments', data.recent_assignments || [], (item) => `<strong>${item.title || 'Untitled'}</strong><small>${item.course_name || ''}</small><small>Status: ${item.status || 'assigned'} · Grade: ${item.grade || '—'}</small>`);
-  renderList('recent-submissions', data.recent_submissions || [], (item) => `<strong>${item.assignment_name || item.original_filename || 'Submission'}</strong><small>${item.class_name || ''}</small><small>Status: ${item.status || 'unknown'} · File: ${item.original_filename || '—'}</small>`);
+  renderList('recent-submissions', data.recent_submissions || [], (item) => {
+    const count = Number(item.file_count || (item.file_manifest_json || []).length || 1);
+    const artifact = item.artifact_kind === 'source_bundle' ? 'Source bundle' : 'File';
+    return `<strong>${item.assignment_name || item.original_filename || 'Submission'}</strong><small>${item.class_name || ''}</small><small>Status: ${item.status || 'unknown'} · ${artifact}: ${item.original_filename || '—'} · ${count} file${count === 1 ? '' : 's'}</small>`;
+  });
   renderList('recent-recordings', data.recent_recordings || [], (item) => `<strong>${item.original_filename || 'Recording'}</strong><small>${item.session_date || ''}</small><small>Transcription: ${item.transcription_status || '—'} · Summary: ${item.summary_status || '—'}</small>`);
 }
 

home/doris-schoolhouse/app/templates/assignment_upload.html

@@ -1,5 +1,13 @@
 {% extends 'base.html' %}
 {% block content %}
+{% if request.query_params.get('submitted') %}
+<section class="card form-card notice-card success-card">
+  <h2>Submission Created</h2>
+  <p>Submission {{ request.query_params.get('submitted') }} was created successfully.</p>
+  <p class="muted">Artifact: {{ request.query_params.get('artifact_kind', 'document') }} · Files: {{ request.query_params.get('file_count', '1') }}</p>
+  <p class="muted">Paperless status: {{ request.query_params.get('paperless_status', 'uploaded-local') }}</p>
+</section>
+{% endif %}
 <section class="card form-card">
   <h2>Assignment Upload</h2>
   <form class="stack" method="post" enctype="multipart/form-data" action="/api/assignments/intake" id="assignment-upload-form">
@@ -15,9 +23,13 @@
       </select>
     </label>
     <label>Version <input name="version" value="v1"></label>
+    <p class="muted">Programming-class uploads are bundled into one zip artifact for archival. The source files stay grouped together as one submission.</p>
     <label>Notes <textarea name="notes" rows="4" placeholder="Anything useful about this turn-in."></textarea></label>
-    <label>File <input type="file" name="file" required></label>
-    <button type="submit">Upload for metadata confirmation</button>
+    <label>Files
+      <input type="file" name="files" multiple required>
+      <small class="muted">Pick one or many files for the same assignment version. Schoolhouse will build one source bundle.</small>
+    </label>
+    <button type="submit">Build submission bundle</button>
   </form>
 </section>
 {% endblock %}

home/doris-schoolhouse/bin/backup-to-serenity.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SERENITY_NFS_EXPORT="${SERENITY_NFS_EXPORT:-10.5.1.5:/mnt/user/data}"
+SERENITY_MOUNT_POINT="${SERENITY_MOUNT_POINT:-/mnt/serenity-data}"
+SCHOOLHOUSE_DATA_ROOT="${SCHOOLHOUSE_DATA_ROOT:-/opt/doris-schoolhouse/data}"
+SERENITY_BACKUP_SUBDIR="${SERENITY_BACKUP_SUBDIR:-backups/nomad/doris-schoolhouse}"
+RSYNC_BIN="${RSYNC_BIN:-/usr/bin/rsync}"
+SUDO_BIN="${SUDO_BIN:-/usr/bin/sudo}"
+MOUNT_BIN="${MOUNT_BIN:-/usr/bin/mount}"
+DATE_BIN="${DATE_BIN:-/usr/bin/date}"
+HOSTNAME_BIN="${HOSTNAME_BIN:-/usr/bin/hostname}"
+
+if [[ ! -d "$SCHOOLHOUSE_DATA_ROOT" ]]; then
+  echo "Schoolhouse data root missing: $SCHOOLHOUSE_DATA_ROOT" >&2
+  exit 1
+fi
+
+"$SUDO_BIN" mkdir -p "$SERENITY_MOUNT_POINT"
+if ! mountpoint -q "$SERENITY_MOUNT_POINT"; then
+  "$SUDO_BIN" "$MOUNT_BIN" -t nfs -o rw,nfsvers=4 "$SERENITY_NFS_EXPORT" "$SERENITY_MOUNT_POINT"
+fi
+
+dest_root="$SERENITY_MOUNT_POINT/$SERENITY_BACKUP_SUBDIR"
+mkdir -p "$dest_root/data"
+
+"$RSYNC_BIN" -rlt --delete --omit-dir-times --no-perms --no-owner --no-group "$SCHOOLHOUSE_DATA_ROOT/" "$dest_root/data/"
+
+stamp="$("$DATE_BIN" -u +%Y-%m-%dT%H:%M:%SZ)"
+host_name="$("$HOSTNAME_BIN")"
+printf '%s\n' "$stamp" > "$dest_root/last_success_utc.txt"
+printf '%s\n' "$host_name" > "$dest_root/source_host.txt"
+
+echo "Schoolhouse backup synced to $dest_root at $stamp"

home/doris-schoolhouse/bin/test-assignment-handoff.sh

@@ -1,21 +1,36 @@
 #!/usr/bin/env bash
 set -euo pipefail
 if [ "$#" -lt 2 ]; then
-  echo "usage: $0 <file> <class_name> [assignment_name]" >&2
+  echo "usage: $0 <file> [more_files ...] <class_name> [assignment_name]" >&2
   exit 1
 fi
-FILE="$1"
-CLASS_NAME="$2"
-ASSIGNMENT_NAME="${3:-Sample Assignment}"
+
+ARGS=("$@")
+COUNT=$#
+if [ "$COUNT" -eq 2 ]; then
+  FILES=("${ARGS[0]}")
+  CLASS_NAME="${ARGS[1]}"
+  ASSIGNMENT_NAME="Sample Assignment"
+elif [ "$COUNT" -eq 3 ]; then
+  FILES=("${ARGS[0]}")
+  CLASS_NAME="${ARGS[1]}"
+  ASSIGNMENT_NAME="${ARGS[2]}"
+else
+  FILES=("${ARGS[@]:0:$COUNT-2}")
+  CLASS_NAME="${ARGS[$COUNT-2]}"
+  ASSIGNMENT_NAME="${ARGS[$COUNT-1]}"
+fi
+
 TARGET="${N8N_BASE_URL:-https://n8n.example.com}${SCHOOLHOUSE_N8N_ASSIGNMENT_WEBHOOK:-/webhook/school/intake/upload}"
-cat <<MSG
-Dry-run assignment handoff preview
-Target: $TARGET
-Command:
-curl -X POST "$TARGET" \\
-  -F "document=@$FILE" \\
-  -F "class_name=$CLASS_NAME" \\
-  -F "assignment_name=$ASSIGNMENT_NAME" \\
-  -F "submission_kind=assignment_turn_in" \\
-  -F "source=doris-schoolhouse"
-MSG
+
+echo "Dry-run assignment handoff preview"
+echo "Target: $TARGET"
+echo "Command:"
+echo "curl -X POST \"$TARGET\" \\"
+for file in "${FILES[@]}"; do
+  echo "  -F \"document=@$file\" \\"
+done
+echo "  -F \"class_name=$CLASS_NAME\" \\"
+echo "  -F \"assignment_name=$ASSIGNMENT_NAME\" \\"
+echo "  -F \"submission_kind=assignment_turn_in\" \\"
+echo "  -F \"source=doris-schoolhouse\""