Initial commit: mini-erp (backend FastAPI + frontend React/Vite)
Base para el flujo de ramas por cliente. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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import logging
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from io import BytesIO
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from pathlib import Path
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from typing import Literal
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from fastapi import APIRouter, HTTPException
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from fastapi.responses import HTMLResponse, StreamingResponse
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from jinja2 import Environment, FileSystemLoader
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from pydantic import BaseModel
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from weasyprint import HTML
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from hdbcli import dbapi
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from core.hana import hana_connection, HANA_SCHEMA
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router = APIRouter(
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tags=["Reportes (Jinja/HTML)"]
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)
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TEMPLATES_REPORTS_DIR = Path(__file__).resolve().parent.parent / "templates" / "reports"
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templates_env = Environment(loader=FileSystemLoader("templates/reports"))
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logger = logging.getLogger(__name__)
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# Tamaño de papel que usa cada reporte al renderizar el PDF (CSS @page.size).
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PAPER_SIZES = {"A4": "A4", "Carta": "letter"}
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# Alto útil de la página en orientación horizontal (tamaño de papel menos los
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# 0.3in de margen superior e inferior definidos en el @page de stickers.html).
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PAGINA_ALTO_LANDSCAPE = {"A4": "7.67in", "Carta": "7.9in"}
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# Query original de Crystal Reports para DLN20015, adaptada: el placeholder
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# de Crystal `{?Dockey@}` se reemplaza por un bind param `?` de hdbcli, y cada
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# tabla queda calificada con el schema de la compañía SAP B1 (HANA_SCHEMA).
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STICKERS_QUERY = f"""
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SELECT TOP 1
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T0."DocEntry",
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T0."DocNum",
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CASE
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WHEN IFNULL(T0."NumAtCard",'') <> '' THEN T0."NumAtCard"
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ELSE T0."FolioPref"||'-'||T0."FolioNum"
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END AS "GUIA_REMISION",
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T0."U_SIS_ORDCOM" AS "ORDEN_COMPRA",
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CASE
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WHEN T0."Indicator" = 'AN' THEN 'ANULADO'
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END AS "ESTADO",
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T0."CardCode",
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T0."CardName",
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T4."Phone1" AS "TELEFONO",
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T7."StreetS" AS "DIRECCION",
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T7."CountyS" AS "PROVINCIA",
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T14."Name" AS "DEPARTAMENTO",
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T7."ZipCodeS" AS "DISTRITO",
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T6."IndDesc" AS "GRUPO_CLIENTE",
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CASE
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WHEN T4."GroupCode" = '100' THEN 'VENTA LOCAL'
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WHEN T4."GroupCode" = '102' THEN 'VENTA EXTERIOR'
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END AS "TIPO_VENTA",
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T0."DocDate" AS "FECHA",
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T1."ItemCode",
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T2."ItemName",
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T3."Name" AS "LINEA",
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T10."BatchNum" AS "LOTE",
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T1."unitMsr" AS "UNIDADES",
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T10."Quantity" AS "CANTIDAD",
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T0."Indicator" AS "DOCUMENTO",
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T0."U_SIS_FECENT" AS "FECHA_ENTREGA",
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T8."SlpName" AS "REPRESENTANTE",
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UPPER(T9."U_NAME") AS "ASISTENTE_VENTA",
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T0."Comments" AS "COMENTARIOS",
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CASE T0."U_SIS_TIPDESP"
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WHEN 'N' THEN 'LOCAL'
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WHEN 'A' THEN 'PROVINCIA'
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WHEN 'U' THEN 'LOCAL - URGENTE'
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WHEN 'O' THEN 'OFICINA'
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WHEN 'V' THEN '-'
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WHEN 'J' THEN 'PROVINCIA -URGENTE'
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WHEN 'R' THEN 'REGULARIZACION'
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ELSE 'LOCAL'
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END AS "TIPO_DESPACHO",
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T11."ExpDate" AS "FECHA VENCIMIENTO",
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CASE T0."U_SIS_HORREC"
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WHEN '100' THEN 'SIN HORARIO'
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WHEN '101' THEN '08 AM - 10 AM'
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WHEN '102' THEN '10 AM - 01 PM'
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WHEN '103' THEN '01 PM - 03 PM'
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WHEN '104' THEN '03 PM - 06 PM'
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ELSE 'SIN HORARIO'
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END AS "HORARIO RECOJO",
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T11."LotNumber" AS "UBICACION",
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T1."WhsCode" AS "ALMACEN",
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T1."VisOrder",
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T0.U_EXX_NOMTRANS AS "TRANSPORTISTA",
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ROW_NUMBER() OVER (PARTITION BY T1."VisOrder" ORDER BY T1."VisOrder" DESC) AS row_num
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FROM "{HANA_SCHEMA}".ODLN T0
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INNER JOIN "{HANA_SCHEMA}".DLN1 T1 ON T0."DocEntry" = T1."DocEntry"
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INNER JOIN "{HANA_SCHEMA}".OITM T2 ON T1."ItemCode" = T2."ItemCode"
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LEFT JOIN "{HANA_SCHEMA}"."@SIS_LINART" T3 ON T2.U_SIS_LINART = T3."Code"
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INNER JOIN "{HANA_SCHEMA}".OCRD T4 ON T0."CardCode" = T4."CardCode"
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INNER JOIN "{HANA_SCHEMA}".NNM1 T5 ON T0."Series"=T5."Series"
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LEFT JOIN "{HANA_SCHEMA}".OOND T6 ON T4."IndustryC" = T6."IndCode"
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LEFT JOIN "{HANA_SCHEMA}".DLN12 T7 ON T0."DocEntry" = T7."DocEntry"
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LEFT JOIN "{HANA_SCHEMA}".OCST T14 ON T14."Code" = T7."StateS" AND T14."Country" = T7."CountryS"
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LEFT JOIN "{HANA_SCHEMA}".OSLP T8 ON T0."SlpCode" = T8."SlpCode"
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LEFT JOIN "{HANA_SCHEMA}".OUSR T9 ON T0."UserSign" = T9."USERID"
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LEFT JOIN "{HANA_SCHEMA}".IBT1 T10 ON T1."ItemCode"=T10."ItemCode" AND T0."DocEntry"=T10."BaseEntry" AND T1."WhsCode"=T10."WhsCode" AND T0."ObjType"=T10."BaseType" AND T0."DocNum"=T10."BaseNum" AND T1."LineNum" = T10."BaseLinNum" AND T10."Direction"='1'
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LEFT JOIN "{HANA_SCHEMA}".OBTN T11 ON T11."ItemCode" = T1."ItemCode" AND T10."BatchNum" = T11."DistNumber"
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WHERE T0."DocEntry" = ?
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"""
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# ============================================================================
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class StickersParams(BaseModel):
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doc_entry: int
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cantidad: int
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formato: Literal["pdf", "html"] = "pdf"
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papel: Literal["A4", "Carta"] = "Carta"
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# ============================================================================
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@router.post("/api/reports/stickers")
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async def generar_stickers(params: StickersParams):
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log_extra = {"http_method": "POST", "endpoint": "reports/stickers"}
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logger.info(f"Generando reporte de stickers para DocEntry {params.doc_entry}", extra=log_extra)
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try:
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with hana_connection() as conn:
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cursor = conn.cursor()
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cursor.execute(STICKERS_QUERY, (params.doc_entry,))
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row = cursor.fetchone()
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columns = [d[0] for d in cursor.description]
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except dbapi.Error as exc:
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logger.error(f"Error al consultar la guía de remisión {params.doc_entry}: {exc}", extra=log_extra)
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raise HTTPException(status_code=500, detail=f"Error al consultar el reporte: {exc}")
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if not row:
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logger.warning(f"DocEntry {params.doc_entry} no encontrado", extra=log_extra)
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raise HTTPException(status_code=404, detail=f"No se encontró el documento {params.doc_entry}")
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fila = dict(zip(columns, row))
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lugar = " - ".join(
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p for p in (fila.get("DEPARTAMENTO"), fila.get("PROVINCIA"), fila.get("DISTRITO")) if p
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)
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datos = {
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"cliente": fila.get("CardName"),
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"direccion": fila.get("DIRECCION"),
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"lugar": lugar,
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"documento": fila.get("GUIA_REMISION"),
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}
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stickers = [{"numero": i, "total": params.cantidad} for i in range(1, params.cantidad + 1)]
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paginas = [stickers[i:i + 4] for i in range(0, len(stickers), 4)]
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template = templates_env.get_template("stickers.html")
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html_renderizado = template.render(
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datos=datos,
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paginas=paginas,
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paper_size=PAPER_SIZES[params.papel],
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pagina_alto=PAGINA_ALTO_LANDSCAPE[params.papel],
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)
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if params.formato == "html":
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logger.info(f"Reporte de stickers generado en HTML para DocEntry {params.doc_entry}", extra={**log_extra, "status_code": 200})
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return HTMLResponse(content=html_renderizado)
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pdf_bytes = HTML(string=html_renderizado, base_url=str(TEMPLATES_REPORTS_DIR)).write_pdf()
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logger.info(f"Reporte de stickers generado en PDF para DocEntry {params.doc_entry}", extra={**log_extra, "status_code": 200})
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return StreamingResponse(
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BytesIO(pdf_bytes),
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media_type="application/pdf",
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headers={"Content-Disposition": f'inline; filename="stickers_{params.doc_entry}.pdf"'},
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)
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