pedidos-express/impresora/printer.py

import tabulate
from escpos.printer.win32raw import Win32Raw
from escpos.printer.usb import Usb
from escpos.printer.network import Network
from escpos.printer import Dummy
from escpos.escpos import Escpos
from impresora.order import Order


class BasePrinter:

    def __init__(self):
        self.bolded = False
        self.font = "a"
        self.doubled_size = False
        self.work = Dummy()
        self.printer:Escpos
    def change_font(self):
        self.font = "b" if self.font == "a" else "a"
        self.work.set(font=self.font)
    def text(self, text):
        # Print the text
        self.work.text(text+"\n")
    def bold(self):
        # Set bold for the next print
        self.bolded = not self.bolded
        self.work.set(bold=self.bolded)
    def double_size(self):
        # Set double size for the next print
        self.doubled_size = not self.doubled_size
        self.work.set(double_height=self.doubled_size, double_width=self.doubled_size)
        
    def default(self):
        # Set default size for the next print
        self.work.set_with_default()
        
    def print_order(self, order:Order, mesa:int = 0):
    # Print the order details
        self.default()
        self.double_size()
        self.bold()

        self.text(f"Orden Biergarten Klein\n")
        self.default()
        self.text(f"Fecha: {order.date.strftime('%d/%m/%Y: %H:%M:%S')}")
        self.bold()
        self.text(f"Mesa: {mesa}\n")
        self.default()
        self.text(order.tabulate())
        self.bold()
        self.text(f"Total: {order.total}")
        
        self.work.cut()

        # Print the order details
        self.printer._raw(self.work.output)
        self.work.clear()
        # Intentar cerrar la impresora si el método existe
        if hasattr(self.printer, 'close'):
            self.printer.close()


class PrinterWindows(BasePrinter):
    def __init__(self, printer_name="Impresora Termica"):
        super().__init__()
        self.printer = Win32Raw(printer_name)

class PrinterUSB(BasePrinter):
    def __init__(self, vendor_id, product_id):
        super().__init__()
        self.printer = Usb(vendor_id, product_id,in_ep=0x81,out_ep=0x03)

class PrinterNetwork(BasePrinter):
    def __init__(self, host, port):
        super().__init__()
        self.printer = Network(host, port)