from fastapi import FastAPI, Response
from escpos.printer import Dummy, Network, Usb
# import sys
import json

from pydantic import BaseModel
from datetime import datetime

app = FastAPI(
    title="Print Server FastAPI",
    description="Server that receive request for printing",
    version="0.0.1"
)


class Info(BaseModel):
    content: str
    ip_printer: str
    user_name: str
    printer_type: str
    idVendor: str
    idProduct: str


def open_conexion(info):
    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 = 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)
    format_date_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    printer.text(str(format_date_time) + '\n')

    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)
    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)
                pizza += 1
            elif pizza >= 2:
                combination_pizza = False
                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)

            text = line['product'] + "  " + str(line['quantity']) + "\n"
            printer.text(text)
            if line['description']:
                text = line['description'] + "\n"
                printer.text(text)

            if pizza == 2:
                printer.ln()
                pizza = 0
                combination_pizza = False
        else:
            printer.set(
                align='left', bold=True, height=2, width=2, custom_size=True
            )
            printer.text("\nPIZZA COMBINADA\n")
            combination_pizza = True
            pizza = 0
    # 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'))


@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):
    info = dict(info)
    print(info)
    data = info["content"]
    waiter = info["user_name"]
    data = json.loads(data.replace("'", "\""))
    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):
    print(info)
    info = dict(info)
    data = info["content"]
    waiter = info["user_name"]
    data = json.loads(data.replace("'", "\""))
    print_customer_order(data, info, waiter)

    message = "!Impresión Realizada!"

    return Response(content=message, status_code=200)