Files
breakpilot-lehrer/klausur-service/backend/ocr_pipeline_reconstruction.py
Benjamin Admin b6983ab1dc [split-required] Split 500-1000 LOC files across all services
backend-lehrer (5 files):
- alerts_agent/db/repository.py (992 → 5), abitur_docs_api.py (956 → 3)
- teacher_dashboard_api.py (951 → 3), services/pdf_service.py (916 → 3)
- mail/mail_db.py (987 → 6)

klausur-service (5 files):
- legal_templates_ingestion.py (942 → 3), ocr_pipeline_postprocess.py (929 → 4)
- ocr_pipeline_words.py (876 → 3), ocr_pipeline_ocr_merge.py (616 → 2)
- KorrekturPage.tsx (956 → 6)

website (5 pages):
- mail (985 → 9), edu-search (958 → 8), mac-mini (950 → 7)
- ocr-labeling (946 → 7), audit-workspace (871 → 4)

studio-v2 (5 files + 1 deleted):
- page.tsx (946 → 5), MessagesContext.tsx (925 → 4)
- korrektur (914 → 6), worksheet-cleanup (899 → 6)
- useVocabWorksheet.ts (888 → 3)
- Deleted dead page-original.tsx (934 LOC)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-24 23:35:37 +02:00

363 lines
13 KiB
Python

"""
OCR Pipeline Reconstruction — save edits, Fabric JSON export, merged entries, PDF/DOCX export.
Extracted from ocr_pipeline_postprocess.py.
Lizenz: Apache 2.0
DATENSCHUTZ: Alle Verarbeitung erfolgt lokal.
"""
import logging
import re
from typing import Dict
from fastapi import APIRouter, HTTPException, Request
from fastapi.responses import StreamingResponse
from ocr_pipeline_session_store import (
get_session_db,
get_sub_sessions,
update_session_db,
)
from ocr_pipeline_common import _cache
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/v1/ocr-pipeline", tags=["ocr-pipeline"])
# ---------------------------------------------------------------------------
# Step 9: Reconstruction + Fabric JSON export
# ---------------------------------------------------------------------------
@router.post("/sessions/{session_id}/reconstruction")
async def save_reconstruction(session_id: str, request: Request):
"""Save edited cell texts from reconstruction step."""
session = await get_session_db(session_id)
if not session:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
word_result = session.get("word_result")
if not word_result:
raise HTTPException(status_code=400, detail="No word result found")
body = await request.json()
cell_updates = body.get("cells", [])
if not cell_updates:
await update_session_db(session_id, current_step=10)
return {"session_id": session_id, "updated": 0}
# Build update map: cell_id -> new text
update_map = {c["cell_id"]: c["text"] for c in cell_updates}
# Separate sub-session updates (cell_ids prefixed with "box{N}_")
sub_updates: Dict[int, Dict[str, str]] = {} # box_index -> {original_cell_id: text}
main_updates: Dict[str, str] = {}
for cell_id, text in update_map.items():
m = re.match(r'^box(\d+)_(.+)$', cell_id)
if m:
bi = int(m.group(1))
original_id = m.group(2)
sub_updates.setdefault(bi, {})[original_id] = text
else:
main_updates[cell_id] = text
# Update main session cells
cells = word_result.get("cells", [])
updated_count = 0
for cell in cells:
if cell["cell_id"] in main_updates:
cell["text"] = main_updates[cell["cell_id"]]
cell["status"] = "edited"
updated_count += 1
word_result["cells"] = cells
# Also update vocab_entries if present
entries = word_result.get("vocab_entries") or word_result.get("entries") or []
if entries:
for entry in entries:
row_idx = entry.get("row_index", -1)
for col_idx, field_name in enumerate(["english", "german", "example"]):
cell_id = f"R{row_idx:02d}_C{col_idx}"
cell_id_alt = f"R{row_idx}_C{col_idx}"
new_text = main_updates.get(cell_id) or main_updates.get(cell_id_alt)
if new_text is not None:
entry[field_name] = new_text
word_result["vocab_entries"] = entries
if "entries" in word_result:
word_result["entries"] = entries
await update_session_db(session_id, word_result=word_result, current_step=10)
if session_id in _cache:
_cache[session_id]["word_result"] = word_result
# Route sub-session updates
sub_updated = 0
if sub_updates:
subs = await get_sub_sessions(session_id)
sub_by_index = {s.get("box_index"): s["id"] for s in subs}
for bi, updates in sub_updates.items():
sub_id = sub_by_index.get(bi)
if not sub_id:
continue
sub_session = await get_session_db(sub_id)
if not sub_session:
continue
sub_word = sub_session.get("word_result")
if not sub_word:
continue
sub_cells = sub_word.get("cells", [])
for cell in sub_cells:
if cell["cell_id"] in updates:
cell["text"] = updates[cell["cell_id"]]
cell["status"] = "edited"
sub_updated += 1
sub_word["cells"] = sub_cells
await update_session_db(sub_id, word_result=sub_word)
if sub_id in _cache:
_cache[sub_id]["word_result"] = sub_word
total_updated = updated_count + sub_updated
logger.info(f"Reconstruction saved for session {session_id}: "
f"{updated_count} main + {sub_updated} sub-session cells updated")
return {
"session_id": session_id,
"updated": total_updated,
"main_updated": updated_count,
"sub_updated": sub_updated,
}
@router.get("/sessions/{session_id}/reconstruction/fabric-json")
async def get_fabric_json(session_id: str):
"""Return cell grid as Fabric.js-compatible JSON for the canvas editor."""
session = await get_session_db(session_id)
if not session:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
word_result = session.get("word_result")
if not word_result:
raise HTTPException(status_code=400, detail="No word result found")
cells = list(word_result.get("cells", []))
img_w = word_result.get("image_width", 800)
img_h = word_result.get("image_height", 600)
# Merge sub-session cells at box positions
subs = await get_sub_sessions(session_id)
if subs:
column_result = session.get("column_result") or {}
zones = column_result.get("zones") or []
box_zones = [z for z in zones if z.get("zone_type") == "box" and z.get("box")]
for sub in subs:
sub_session = await get_session_db(sub["id"])
if not sub_session:
continue
sub_word = sub_session.get("word_result")
if not sub_word or not sub_word.get("cells"):
continue
bi = sub.get("box_index", 0)
if bi < len(box_zones):
box = box_zones[bi]["box"]
box_y, box_x = box["y"], box["x"]
else:
box_y, box_x = 0, 0
for cell in sub_word["cells"]:
cell_copy = dict(cell)
cell_copy["cell_id"] = f"box{bi}_{cell_copy.get('cell_id', '')}"
cell_copy["source"] = f"box_{bi}"
bbox = cell_copy.get("bbox_px", {})
if bbox:
bbox = dict(bbox)
bbox["x"] = bbox.get("x", 0) + box_x
bbox["y"] = bbox.get("y", 0) + box_y
cell_copy["bbox_px"] = bbox
cells.append(cell_copy)
from services.layout_reconstruction_service import cells_to_fabric_json
fabric_json = cells_to_fabric_json(cells, img_w, img_h)
return fabric_json
# ---------------------------------------------------------------------------
# Vocab entries merged + PDF/DOCX export
# ---------------------------------------------------------------------------
@router.get("/sessions/{session_id}/vocab-entries/merged")
async def get_merged_vocab_entries(session_id: str):
"""Return vocab entries from main session + all sub-sessions, sorted by Y position."""
session = await get_session_db(session_id)
if not session:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
word_result = session.get("word_result") or {}
entries = list(word_result.get("vocab_entries") or word_result.get("entries") or [])
for e in entries:
e.setdefault("source", "main")
subs = await get_sub_sessions(session_id)
if subs:
column_result = session.get("column_result") or {}
zones = column_result.get("zones") or []
box_zones = [z for z in zones if z.get("zone_type") == "box" and z.get("box")]
for sub in subs:
sub_session = await get_session_db(sub["id"])
if not sub_session:
continue
sub_word = sub_session.get("word_result") or {}
sub_entries = sub_word.get("vocab_entries") or sub_word.get("entries") or []
bi = sub.get("box_index", 0)
box_y = 0
if bi < len(box_zones):
box_y = box_zones[bi]["box"]["y"]
for e in sub_entries:
e_copy = dict(e)
e_copy["source"] = f"box_{bi}"
e_copy["source_y"] = box_y
entries.append(e_copy)
def _sort_key(e):
if e.get("source", "main") == "main":
return e.get("row_index", 0) * 100
return e.get("source_y", 0) * 100 + e.get("row_index", 0)
entries.sort(key=_sort_key)
return {
"session_id": session_id,
"entries": entries,
"total": len(entries),
"sources": list(set(e.get("source", "main") for e in entries)),
}
@router.get("/sessions/{session_id}/reconstruction/export/pdf")
async def export_reconstruction_pdf(session_id: str):
"""Export the reconstructed cell grid as a PDF table."""
session = await get_session_db(session_id)
if not session:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
word_result = session.get("word_result")
if not word_result:
raise HTTPException(status_code=400, detail="No word result found")
cells = word_result.get("cells", [])
columns_used = word_result.get("columns_used", [])
grid_shape = word_result.get("grid_shape", {})
n_rows = grid_shape.get("rows", 0)
n_cols = grid_shape.get("cols", 0)
# Build table data: rows x columns
table_data: list[list[str]] = []
header = [c.get("label", c.get("type", f"Col {i}")) for i, c in enumerate(columns_used)]
if not header:
header = [f"Col {i}" for i in range(n_cols)]
table_data.append(header)
for r in range(n_rows):
row_texts = []
for ci in range(n_cols):
cell_id = f"R{r:02d}_C{ci}"
cell = next((c for c in cells if c.get("cell_id") == cell_id), None)
row_texts.append(cell.get("text", "") if cell else "")
table_data.append(row_texts)
try:
from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.platypus import SimpleDocTemplate, Table, TableStyle
import io as _io
buf = _io.BytesIO()
doc = SimpleDocTemplate(buf, pagesize=A4)
if not table_data or not table_data[0]:
raise HTTPException(status_code=400, detail="No data to export")
t = Table(table_data)
t.setStyle(TableStyle([
('BACKGROUND', (0, 0), (-1, 0), colors.HexColor('#0d9488')),
('TEXTCOLOR', (0, 0), (-1, 0), colors.white),
('FONTSIZE', (0, 0), (-1, -1), 9),
('GRID', (0, 0), (-1, -1), 0.5, colors.grey),
('VALIGN', (0, 0), (-1, -1), 'TOP'),
('WORDWRAP', (0, 0), (-1, -1), True),
]))
doc.build([t])
buf.seek(0)
return StreamingResponse(
buf,
media_type="application/pdf",
headers={"Content-Disposition": f'attachment; filename="reconstruction_{session_id}.pdf"'},
)
except ImportError:
raise HTTPException(status_code=501, detail="reportlab not installed")
@router.get("/sessions/{session_id}/reconstruction/export/docx")
async def export_reconstruction_docx(session_id: str):
"""Export the reconstructed cell grid as a DOCX table."""
session = await get_session_db(session_id)
if not session:
raise HTTPException(status_code=404, detail=f"Session {session_id} not found")
word_result = session.get("word_result")
if not word_result:
raise HTTPException(status_code=400, detail="No word result found")
cells = word_result.get("cells", [])
columns_used = word_result.get("columns_used", [])
grid_shape = word_result.get("grid_shape", {})
n_rows = grid_shape.get("rows", 0)
n_cols = grid_shape.get("cols", 0)
try:
from docx import Document
from docx.shared import Pt
import io as _io
doc = Document()
doc.add_heading(f'Rekonstruktion -- Session {session_id[:8]}', level=1)
header = [c.get("label", c.get("type", f"Col {i}")) for i, c in enumerate(columns_used)]
if not header:
header = [f"Col {i}" for i in range(n_cols)]
table = doc.add_table(rows=1 + n_rows, cols=max(n_cols, 1))
table.style = 'Table Grid'
for ci, h in enumerate(header):
table.rows[0].cells[ci].text = h
for r in range(n_rows):
for ci in range(n_cols):
cell_id = f"R{r:02d}_C{ci}"
cell = next((c for c in cells if c.get("cell_id") == cell_id), None)
table.rows[r + 1].cells[ci].text = cell.get("text", "") if cell else ""
buf = _io.BytesIO()
doc.save(buf)
buf.seek(0)
return StreamingResponse(
buf,
media_type="application/vnd.openxmlformats-officedocument.wordprocessingml.document",
headers={"Content-Disposition": f'attachment; filename="reconstruction_{session_id}.docx"'},
)
except ImportError:
raise HTTPException(status_code=501, detail="python-docx not installed")