42 lines
1.4 KiB
Python
42 lines
1.4 KiB
Python
import base64
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from io import BytesIO
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from sqlalchemy.ext.asyncio import AsyncSession
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from modules.fulfillment_base.barcodes_pdf_gen import BarcodePdfGenerator, BarcodeData
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from modules.fulfillment_base.models import Product
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from modules.fulfillment_base.repositories import ProductRepository
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from modules.fulfillment_base.schemas.product import GetProductBarcodePdfRequest
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class BarcodePrinterService:
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session: AsyncSession
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def __init__(self, session: AsyncSession):
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self.session = session
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async def generate_pdf(
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self, request: GetProductBarcodePdfRequest
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) -> tuple[str, BytesIO]:
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product: Product = await ProductRepository(self.session).get_by_id(
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request.product_id
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)
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barcode_data: BarcodeData = {
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"barcode": request.barcode,
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"template": product.barcode_template,
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"product": product,
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"num_duplicates": request.quantity,
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}
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filename = f"{product.id}_barcode.pdf"
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size = product.barcode_template.size
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generator = BarcodePdfGenerator(size.width, size.height)
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return filename, generator.generate([barcode_data])
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async def generate_base64(
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self, request: GetProductBarcodePdfRequest
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) -> tuple[str, str]:
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filename, pdf_buffer = await self.generate_pdf(request)
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base64_string = base64.b64encode(pdf_buffer.read()).decode("utf-8")
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return filename, base64_string
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