fix: Se Añade soporte para impresión

api.py

@@ -1,10 +1,9 @@
 from fastapi import FastAPI, Response
-from escpos.printer import Dummy, Network
+from escpos.printer import Dummy, Network, Usb
-import sys
+# import sys
 import json
 
 from pydantic import BaseModel
-from time import sleep
 from datetime import datetime
 
 app = FastAPI(
@@ -13,51 +12,163 @@ app = FastAPI(
     version="0.0.1"
 )
 
+
 class Info(BaseModel):
-    content : str
+    content: str
-    ip_printer : str
+    ip_printer: str
+    user_name: str
+    printer_type: str
+    idVendor: str
+    idProduct: str
 
 
-def imprimir_ticket_de_prueba(data, address):
+def open_conexion(info):
-    d = data
+    if info.get('ip_printer'):
+        # Crea una instancia de la impresora de Red
+        printer = Network(str(info.get('ip_printer')))
+        printer.open()
+    elif info.get('idVendor') and info.get('idProduct'):
+        # Crea una instancia de la impresora USB
+        printer = Usb(
+            int(info.get('idVendor')),
+            int(info.get('idProduct')), 0)
+    else:
         # Crea una instancia de la impresora ficticia
-    #printer = Network(str(address))
-    #printer.open()
         printer = Dummy()
 
+    return printer
+
+
+def print_bill(data, info, waiter=None):
+    d = data
+
+    # Abre Conexión Con la Impresora
+    printer = open_conexion(info)
+    printer.set(align='center', bold=False, height=1, width=1)
+    printer.text(d["shop_name"] + '\n')
+    printer.text(d["shop_address"] + '\n')
+    printer.set(align='left', bold=False, height=1, width=1)
+    printer.textln('===============================================')
+    text = d['state']
+    printer.textln(text)
+    if d['invoice'] and d['invoice']['resolution']:
+        text = "Resolucion de Facturacion # " + \
+            str(d['invoice']['resolution']['resolution_number']) \
+            + "\nValida desde " + \
+            d['invoice']['resolution']['valid_date_time_from'] + \
+            " hasta " + str(d['invoice']['resolution']['valid_date_time_to'])
+        printer.textln(text)
+        printer.ln()
+        text = "Factura #: " + d['invoice']['invoice_number']
+        printer.textln(text)
+    printer.text("Cliente: " + d["party"] + '\n')
+    printer.text("CC/NIT: " + d["tax_identifier_code"] + '\n')
+    printer.text("Direccion: " + d["address"] + '\n')
+    text = 'MESA: ' + str(d['table'] + "\n")
+    printer.text(text)
+    printer.textln('===============================================')
+    printer.ln()
+    for line in d["lines"]:
+        if line['type'] != 'title':
+            text = line['product']
+            printer.text(text)
+            printer.ln()
+            text = str(line['quantity']) + " " + " $" + \
+                line["unit_price"] + "\n"
+            printer.text(text)
+
+    printer.set(align='right', bold=False, height=1, width=1)
+    printer.textln('================================================')
+    text = "Descuento Realizado: " + str(d["total_discount"]) + "\n"
+    printer.text(text)
+    text = "Total (sin impuestos): " + str(d["untaxed_amount"]) + "\n"
+    printer.text(text)
+    text = "Impuestos (INC): " + str(d["tax_amount"]) + "\n"
+    printer.text(text)
+    text = "Total: " + str(d["total"]) + "\n"
+    printer.text(text)
+    printer.ln()
+    if 'payments' in d.keys():
+        printer.textln("Pagos: ")
+        printer.textln('================================================')
+
+        for payment in d['payments']:
+            text = str(payment["statement"]) + " $" + str(payment["amount"])
+            printer.textln(text)
+    printer.set(align='center', bold=False, height=1, width=1)
+    printer.textln('==============================================\n')
+    printer.text("Sigue nuestras redes sociales\n")
+    printer.text("@Rustik\n")
+    printer.text("Recuerde que la propina es voluntaria.\n")
+    printer.text("Gracias por visitarnos, vuelva pronto.\n")
+    printer.text("SOFTWARE POTENCIADO POR ONECLUSTER.ORG.\n")
+    format_date_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+    printer.text(str(format_date_time) + '\n')
+    if waiter:
+        printer.text("Atendido Por: \n")
+        printer.text(str(waiter) + '\n')
+
+    # Corta el papel (solo para impresoras que soportan esta función)
+    printer.cut()
+    printer.close()
+    # Obtiene el contenido del ticket de prueba
+    # ticket_contenido = printer.output
+    # Imprime el contenido en la consola
+    # sys.stdout.write(ticket_contenido.decode('utf-8'))
+
+
+def print_customer_order(data, info, waiter):
+    d = data
+    # Abre Conexión Con la Impresora
+    printer = open_conexion(info)
     # Imprime el encabezado
     printer.set(align='center', bold=False, height=1, width=1)
-    printer.text("Pedido Por: " + str(d['user'])+ '\n')
     format_date_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
-    printer.text(str(format_date_time)+'\n')
+    printer.text(str(format_date_time) + '\n')
-    printer.set(align='center', bold=False, height=2, width=2, custom_size=True)
+
+    if waiter:
+        printer.text("Pedido Por: \n")
+        printer.text(str(waiter) + '\n')
+    printer.set(
+        align='center', bold=False, height=2, width=2, custom_size=True
+    )
     printer.text('========================\n')
     text = 'MESA: ' + str(d['table'] + "\n")
     printer.text(text)
     printer.text('========================\n')
-    
     printer.set(align='left', bold=False, height=6, width=6)
-    pizza = None
+    combination_pizza = False
+    pizza = 0
     for line in d["lines"]:
         if line['type'] != 'title':
             if combination_pizza and pizza < 2:
-                printer.set(align='center', bold=False, height=2, width=2, custom_size=True)
+                printer.set(align='center', bold=False, height=2, width=2,
+                            custom_size=True)
                 pizza += 1
-            elif pizza >=2:
+            elif pizza >= 2:
                 combination_pizza = False
-                printer.set(align='left', bold=False, height=2, width=2, custom_size=True)
+                printer.set(
+                    align='left', bold=False, height=2, width=2,
+                    custom_size=True)
             else:
-                printer.set(align='left', bold=False, height=2, width=2, custom_size=True)
+                printer.set(
+                    align='left', bold=False, height=2, width=2,
+                    custom_size=True)
 
-                
+            text = line['product'] + "  " + str(line['quantity']) + "\n"
-            text = line['product'] +"  "+str(line['quantity'])+"\n"
             printer.text(text)
+            if line['description']:
+                text = line['description'] + "\n"
+                printer.text(text)
+
             if pizza == 2:
-                printer.text('\n')
+                printer.ln()
                 pizza = 0
                 combination_pizza = False
         else:
-            printer.set(align='left', bold=True, height=2, width=2, custom_size=True)
+            printer.set(
+                align='left', bold=True, height=2, width=2, custom_size=True
+            )
             printer.text("\nPIZZA COMBINADA\n")
             combination_pizza = True
             pizza = 0
@@ -65,30 +176,47 @@ def imprimir_ticket_de_prueba(data, address):
     printer.cut()
     printer.close()
     # Obtiene el contenido del ticket de prueba
-    ticket_contenido = printer.output
+    # ticket_contenido = printer.output
 
     # Imprime el contenido en la consola
-    sys.stdout.write(ticket_contenido.decode('utf-8'))
+    # sys.stdout.write(ticket_contenido.decode('utf-8'))
+
+
+@app.post("/print_bill")
+def print_ticket_bill(info: Info):
+    info = dict(info)
+    data = info["content"]
+    waiter = info["user_name"]
+    data = json.loads(data.replace("'", "\""))
+    print_bill(data, info, waiter)
+
+    message = "!Impresión Realizada!"
+
+    return Response(content=message, status_code=200)
+
 
 @app.post("/order_kitchen")
-def print_ticket_file_kitchen(info : Info):
+def print_ticket_file_kitchen(info: Info):
     info = dict(info)
+    print(info)
     data = info["content"]
-    address = info["ip_printer"]
+    waiter = info["user_name"]
     data = json.loads(data.replace("'", "\""))
-    imprimir_ticket_de_prueba(data, address)
+    print_customer_order(data, info, waiter)
 
     message = "!Impresión Realizada!"
 
     return Response(content=message, status_code=200)
 
+
 @app.post("/order_bar")
-def print_ticket_file_bar(info : Info):
+def print_ticket_file_bar(info: Info):
+    print(info)
     info = dict(info)
     data = info["content"]
+    waiter = info["user_name"]
     data = json.loads(data.replace("'", "\""))
-    address = info["ip_printer"]
+    print_customer_order(data, info, waiter)
-    imprimir_ticket_de_prueba(data, address)
 
     message = "!Impresión Realizada!"