154 lines
4.3 KiB
Python
154 lines
4.3 KiB
Python
"""Low-level DB access for the barcode WMS client.
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The goal of this module is to mirror the legacy C# barcode form as closely as
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possible while keeping SQL isolated from the UI.
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"""
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from __future__ import annotations
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from dataclasses import dataclass
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from typing import Any
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SQL_NEXT_PICKING = """
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SELECT TOP (1)
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Documento,
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CodNazione,
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NAZIONE,
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Stato,
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Pallet,
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Cella,
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Ubicazione,
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Ordinamento,
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IDStato
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FROM dbo.XMag_ViewPackingList
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WHERE Ordinamento > 0
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AND IDStato = :id_stato
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ORDER BY Ordinamento;
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"""
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SQL_PICKING_BY_PALLET = """
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SELECT TOP (1)
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Documento,
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CodNazione,
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NAZIONE,
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Stato,
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Pallet,
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Cella,
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Ubicazione,
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Ordinamento,
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IDStato
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FROM dbo.XMag_ViewPackingList
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WHERE Pallet = :pallet
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ORDER BY Ordinamento;
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"""
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SQL_TRACE_BY_PALLET = """
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SELECT TOP (1)
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Pallet,
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Lotto,
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Prodotto,
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Descrizione
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FROM dbo.vXTracciaProdotti
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WHERE Pallet = :pallet
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ORDER BY Lotto;
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"""
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SQL_LEGACY_MOVE = """
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SET NOCOUNT ON;
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DECLARE @RC int = 0;
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EXEC dbo.sp_xMagGestioneMagazziniPallet
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@IDOperatore = :id_operatore,
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@BarcodeCella = :barcode_cella,
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@BarcodePallet = :barcode_pallet,
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@NumeroCella = :numero_cella,
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@RC = @RC OUTPUT;
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SELECT
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@RC AS RC,
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:barcode_cella AS BarcodeCella,
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:barcode_pallet AS BarcodePallet,
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:numero_cella AS NumeroCella;
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"""
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def _rows_to_dicts(res: dict[str, Any] | None) -> list[dict[str, Any]]:
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"""Convert ``query_json`` payloads to a list of row dictionaries."""
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if not isinstance(res, dict):
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return []
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rows = res.get("rows") or []
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cols = res.get("columns") or []
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if rows and isinstance(rows[0], dict):
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return [row for row in rows if isinstance(row, dict)]
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out: list[dict[str, Any]] = []
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for row in rows:
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if isinstance(row, (list, tuple)) and cols:
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out.append({str(cols[i]): row[i] for i in range(min(len(cols), len(row)))})
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return out
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@dataclass
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class LegacyMoveResult:
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"""Result of one movement executed through the legacy stored procedure."""
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rc: int
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barcode_cella: str
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barcode_pallet: str
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numero_cella: int
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class BarcodeRepository:
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"""Thin async repository used by the lightweight barcode client."""
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def __init__(self, db_client):
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self.db_client = db_client
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async def fetch_next_picking(self, id_stato: int) -> dict[str, Any] | None:
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"""Return the next pallet proposed by the legacy F1/F2 queue logic."""
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res = await self.db_client.query_json(SQL_NEXT_PICKING, {"id_stato": int(id_stato)})
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rows = _rows_to_dicts(res)
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return rows[0] if rows else None
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async def fetch_picking_by_pallet(self, pallet: str) -> dict[str, Any] | None:
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"""Return one picking row for the given pallet, if still present in the queue."""
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res = await self.db_client.query_json(SQL_PICKING_BY_PALLET, {"pallet": str(pallet or "").strip()})
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rows = _rows_to_dicts(res)
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return rows[0] if rows else None
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async def fetch_trace_by_pallet(self, pallet: str) -> dict[str, Any] | None:
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"""Return trace information used by the C# fallback confirmation path."""
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res = await self.db_client.query_json(SQL_TRACE_BY_PALLET, {"pallet": str(pallet or "").strip()})
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rows = _rows_to_dicts(res)
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return rows[0] if rows else None
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async def execute_legacy_move(
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self,
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*,
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operator_id: int,
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barcode_cella: str,
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barcode_pallet: str,
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numero_cella: int,
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) -> LegacyMoveResult:
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"""Execute the same stored procedure used by the C# barcode form."""
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params = {
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"id_operatore": int(operator_id),
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"barcode_cella": str(barcode_cella or "").strip(),
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"barcode_pallet": str(barcode_pallet or "").strip(),
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"numero_cella": int(numero_cella),
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}
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res = await self.db_client.query_json(SQL_LEGACY_MOVE, params, commit=True)
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rows = _rows_to_dicts(res)
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row = rows[0] if rows else {}
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return LegacyMoveResult(
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rc=int(row.get("RC") or 0),
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barcode_cella=str(row.get("BarcodeCella") or params["barcode_cella"]),
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barcode_pallet=str(row.get("BarcodePallet") or params["barcode_pallet"]),
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numero_cella=int(row.get("NumeroCella") or params["numero_cella"]),
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)
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