363 lines
16 KiB
Python
363 lines
16 KiB
Python
"""app.py — Точка входа и сборка слоёв."""
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from dotenv import load_dotenv
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from flask import Flask, render_template, request, redirect, url_for, Response, jsonify
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import json
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import schema
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import db
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import parser as parser_mod
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import textify
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import extractor
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import differ
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import mimeutil
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from test_routes import test_bp
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from upload import upload_bp
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from api import api_bp
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load_dotenv()
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def _save_file_to_db(filename, file_bytes, mime, contract_id):
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"""Сохранить один файл в БД: documents + supplements. Возвращает doc_id или None."""
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db.execute(
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"INSERT INTO documents (filename, mime_type, original_bytes, status) VALUES (%s,%s,%s,'uploaded')",
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(filename, mime, file_bytes),
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)
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doc, _ = db.query_one(
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"SELECT id FROM documents WHERE filename=%s AND status='uploaded' ORDER BY created_at DESC LIMIT 1",
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(filename,),
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)
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doc_id = doc["id"] if doc else None
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if doc_id:
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db.execute(
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"INSERT INTO supplements (contract_id, document_id, type) VALUES (%s,%s,'initial')",
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(str(contract_id), str(doc_id)),
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)
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return doc_id
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class ContractsApp:
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def __init__(self):
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self.app = Flask(__name__)
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schema.ensure_schema()
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self._add_routes()
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def _add_routes(self):
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self.app.add_url_rule("/", "index", self._index, methods=["GET", "POST"])
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self.app.add_url_rule("/parse/<cid>", "parse", self._parse, methods=["GET"])
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self.app.add_url_rule("/chunk", "chunk", self._chunk_upload, methods=["POST"])
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self.app.add_url_rule("/health", "health", self._health)
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self.app.register_blueprint(test_bp)
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self.app.register_blueprint(upload_bp)
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self.app.register_blueprint(api_bp)
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def _health(self):
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return "OK", 200, {"Content-Type": "text/plain"}
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# ── Шаг 1: загрузка файлов ──────────────────────────────────
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def _index(self):
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if request.method == "POST":
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return self._upload_files()
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cid = request.args.get("id")
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if cid:
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return self._show_contract(cid)
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return render_template("upload.html")
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def _upload_files(self):
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"""Сохранить файлы. ?cid=X — добавить к существующему договору."""
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files = request.files.getlist("files")
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if not files or not any(f.filename for f in files):
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return jsonify({"error": "Нет файлов"}), 400
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cid = request.args.get("cid")
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if cid:
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contract_id = cid
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else:
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conn, err = db.connect()
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if err:
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return jsonify({"error": f"БД: {err}"}), 500
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cur = conn.cursor()
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cur.execute(
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"INSERT INTO contracts (number, client) VALUES (%s, %s) RETURNING id",
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("б/н " + __import__("datetime").datetime.now().strftime("%Y%m%d-%H%M"), ""),
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)
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contract_id = cur.fetchone()[0]
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conn.commit()
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cur.close()
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conn.close()
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for f in files:
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if not f.filename:
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continue
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filename = f.filename
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mime = mimeutil.guess_mime(filename) or f.content_type or "application/octet-stream"
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_save_file_to_db(filename, f.read(), mime, str(contract_id))
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return jsonify({"contract_id": str(contract_id)})
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# ── Чанковая загрузка ──────────────────────────────────────
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def _chunk_upload(self):
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"""Принять чанк. Хранить в БД. На последнем — собрать и сохранить."""
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upload_id = request.form.get("upload_id", "")
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filename = request.form.get("filename", "")
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chunk_index = int(request.form.get("chunk_index", 0))
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total_chunks = int(request.form.get("total_chunks", 1))
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cid = request.form.get("cid") or None
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chunk_file = request.files.get("chunk")
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if not chunk_file:
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return jsonify({"error": "Нет чанка"}), 400
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chunk_data = chunk_file.read()
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mime = mimeutil.guess_mime(filename) or "application/octet-stream"
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# Сохранить чанк в БД (ON CONFLICT — идемпотентно)
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db.execute(
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"INSERT INTO chunks (upload_id, chunk_index, chunk_data, filename, mime, total_chunks, cid) "
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"VALUES (%s,%s,%s,%s,%s,%s,%s) ON CONFLICT (upload_id, chunk_index) DO NOTHING",
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(upload_id, chunk_index, chunk_data, filename, mime, total_chunks, cid),
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)
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# Сколько уже получено
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count_res, _ = db.query(
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"SELECT COUNT(*) FROM chunks WHERE upload_id=%s", (upload_id,)
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)
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received = count_res["rows"][0][0] if count_res else 0
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if received == total_chunks:
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try:
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# Собрать все чанки по порядку
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rows_res, _ = db.query(
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"SELECT chunk_data FROM chunks WHERE upload_id=%s ORDER BY chunk_index",
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(upload_id,),
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)
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file_bytes = b"".join(r[0] for r in rows_res["rows"])
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# Получить метаданные из первой записи
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meta, _ = db.query_one(
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"SELECT filename, mime, cid FROM chunks WHERE upload_id=%s LIMIT 1",
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(upload_id,),
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)
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fname = meta["filename"] if meta else filename
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fmime = meta["mime"] if meta else mime
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fcid = meta["cid"] if meta else cid
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# Создать контракт если нет
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if fcid:
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contract_id = fcid
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else:
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conn, err = db.connect()
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if err:
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return jsonify({"error": f"БД: {err}"}), 500
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cur = conn.cursor()
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cur.execute(
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"INSERT INTO contracts (number, client) VALUES (%s, %s) RETURNING id",
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("б/н " + __import__("datetime").datetime.now().strftime("%Y%m%d-%H%M"), ""),
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)
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contract_id = cur.fetchone()[0]
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conn.commit()
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cur.close()
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conn.close()
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doc_id = _save_file_to_db(fname, file_bytes, fmime, str(contract_id))
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if not doc_id:
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return jsonify({"error": "Не удалось сохранить файл в БД"}), 500
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except Exception as e:
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return jsonify({"error": f"Сборка: {e}"}), 500
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finally:
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db.execute("DELETE FROM chunks WHERE upload_id=%s", (upload_id,))
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return jsonify({"contract_id": str(contract_id)})
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return jsonify({"chunk": chunk_index, "received": received, "total": total_chunks})
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def _show_contract(self, cid):
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"""Показать договор с кнопкой «Обработать»."""
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contract, _ = db.query_one("SELECT id,number,created_at FROM contracts WHERE id=%s", (cid,))
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if not contract:
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return render_template("upload.html", error="Договор не найден")
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supps, _ = db.query(
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"SELECT s.id, s.created_at, d.filename, d.status, d.parsed_text IS NOT NULL as has_text "
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"FROM supplements s JOIN documents d ON s.document_id=d.id "
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"WHERE s.contract_id=%s ORDER BY s.created_at",
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(cid,),
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)
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supp_list = [dict(zip(supps["columns"], r)) for r in supps["rows"]] if supps else []
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# Есть ли уже результаты?
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rows_res, _ = db.query(
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"SELECT sr.row_num,sr.name,sr.price,sr.qty,sr.sum,sr.date_start "
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"FROM spec_rows sr JOIN supplements s ON sr.supplement_id=s.id "
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"WHERE s.contract_id=%s ORDER BY sr.row_num",
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(cid,),
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)
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all_rows = [dict(zip(rows_res["columns"], r)) for r in rows_res["rows"]] if rows_res else []
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# Есть необработанные допники?
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unprocessed = [s for s in supp_list if s["status"] in ("uploaded", "parsed")]
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return render_template("upload.html",
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contract=contract, supplements=supp_list,
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all_rows=all_rows, unprocessed=unprocessed)
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# ── Шаг 2: Парсинг (SSE) ────────────────────────────────────
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def _parse(self, cid):
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"""SSE-поток: парсинг файлов договора (без LLM)."""
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import time as time_mod
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def generate():
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start_time = time_mod.time()
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total_bytes = 0
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files_processed = 0
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supps, _ = db.query(
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"SELECT s.id, d.id as doc_id, d.filename, d.mime_type, "
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"LENGTH(d.original_bytes) as file_size "
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"FROM supplements s JOIN documents d ON s.document_id=d.id "
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"WHERE s.contract_id=%s",
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(cid,),
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)
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if not supps:
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yield f"data: {json.dumps({'type': 'error', 'message': 'Нет файлов'})}\n\n"
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return
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supp_rows = [dict(zip(supps["columns"], r)) for r in supps["rows"]]
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def _file_done(name, elapsed, elements, errors, text):
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paragraphs = sum(1 for e in elements if e.get("type") == "paragraph")
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tables = sum(1 for e in elements if e.get("type") == "table")
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table_rows = sum(len(e.get("rows", [])) for e in elements if e.get("type") == "table")
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table_headers = [
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e["rows"][0] if e.get("rows") else []
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for e in elements if e.get("type") == "table"
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]
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return {
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"type": "file_done",
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"name": name,
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"time_s": elapsed,
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"elements": len(elements),
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"paragraphs": paragraphs,
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"tables": tables,
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"table_rows": table_rows,
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"table_headers": table_headers,
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"errors": errors,
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"text_len": len(text) if text else 0,
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"text_preview": text[:200] if text else "",
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}
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for s in supp_rows:
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# Пропустить уже распарсенные
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existing, _ = db.query(
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"SELECT 1 FROM documents WHERE id=%s AND status IN ('parsed','expanded')", (s["doc_id"],)
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)
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if existing and existing["rows"]:
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continue
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file_start = time_mod.time()
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file_bytes = s.get("file_size", 0) or 0
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total_bytes += file_bytes
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yield f"data: {json.dumps({'type': 'file_start', 'name': s['filename'], 'bytes': file_bytes})}\n\n"
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# Получить байты
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doc, _ = db.query_one("SELECT original_bytes FROM documents WHERE id=%s", (s["doc_id"],))
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if not doc or not doc.get("original_bytes"):
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yield f"data: {json.dumps({'type': 'file_error', 'name': s['filename'], 'error': 'Нет данных'})}\n\n"
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continue
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raw = doc["original_bytes"]
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file_data = bytes(raw) if isinstance(raw, memoryview) else raw
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# Парсинг: ZIP — распаковать и парсить каждый файл отдельно
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if s["mime_type"] == "application/zip":
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import io as io_mod, zipfile as zf_mod
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zip_names = []
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try:
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with zf_mod.ZipFile(io_mod.BytesIO(file_data)) as zf:
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for zname in zf.namelist():
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if zname.endswith("/"):
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continue
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zdata = zf.read(zname)
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zmime = mimeutil.guess_mime(zname) or "application/octet-stream"
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# Только PDF и Word
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if zmime not in (
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"application/pdf",
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"application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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"application/msword",
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):
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continue
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zip_names.append(zname)
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# Сохранить как отдельный документ
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db.execute(
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"INSERT INTO documents (filename, mime_type, original_bytes, status) VALUES (%s,%s,%s,'uploaded')",
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(zname, zmime, zdata),
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)
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zdoc, _ = db.query_one(
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"SELECT id FROM documents WHERE filename=%s ORDER BY created_at DESC LIMIT 1",
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(zname,),
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)
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zdoc_id = zdoc["id"] if zdoc else None
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if zdoc_id:
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db.execute(
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"INSERT INTO supplements (contract_id, document_id, type) VALUES (%s,%s,'initial')",
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(cid, str(zdoc_id)),
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)
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# Парсинг внутреннего файла
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zf_start = time_mod.time()
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total_bytes += len(zdata)
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yield f"data: {json.dumps({'type': 'file_start', 'name': zname, 'bytes': len(zdata)})}\n\n"
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try:
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zpr = parser_mod.parse(zdata, zmime)
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zelements = zpr.get("elements", [])
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ztext = textify.to_text(zelements) if zelements else ""
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db.execute(
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"UPDATE documents SET parsed_text=%s, elements_json=%s, status='parsed' WHERE id=%s",
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(ztext, json.dumps(zelements, ensure_ascii=False), str(zdoc_id)),
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)
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zelapsed = round(time_mod.time() - zf_start, 2)
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files_processed += 1
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yield f"data: {json.dumps(_file_done(zname, zelapsed, zelements, zpr.get('errors',[]), ztext))}\n\n"
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except Exception as e:
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yield f"data: {json.dumps({'type': 'file_error', 'name': zname, 'error': str(e)})}\n\n"
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except Exception as e:
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yield f"data: {json.dumps({'type': 'file_error', 'name': s['filename'], 'error': 'ZIP: ' + str(e)})}\n\n"
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# ZIP сам — expanded
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db.execute("UPDATE documents SET status='expanded' WHERE id=%s", (s["doc_id"],))
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yield f"data: {json.dumps({'type': 'zip_expanded', 'name': s['filename'], 'count': len(zip_names)})}\n\n"
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else:
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pr = parser_mod.parse(file_data, s["mime_type"])
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elements = pr.get("elements", [])
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text = textify.to_text(elements) if elements else ""
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db.execute(
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"UPDATE documents SET parsed_text=%s, elements_json=%s, status='parsed' WHERE id=%s",
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(text, json.dumps(elements, ensure_ascii=False), str(s["doc_id"])),
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)
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elapsed = round(time_mod.time() - file_start, 2)
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files_processed += 1
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yield f"data: {json.dumps(_file_done(s['filename'], elapsed, elements, pr.get('errors',[]), text))}\n\n"
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total_time = round(time_mod.time() - start_time, 2)
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yield f"data: {json.dumps({'type': 'summary', 'total_time_s': total_time, 'total_bytes': total_bytes, 'files_processed': files_processed})}\n\n"
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return Response(generate(), mimetype="text/event-stream")
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def run(self):
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self.app.run(host="0.0.0.0", port=5000)
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if __name__ == "__main__":
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ContractsApp().run()
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