167 lines
6.2 KiB
Python
167 lines
6.2 KiB
Python
import asyncio
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import locale
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import re
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import uuid
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from datetime import timedelta
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from decimal import Decimal
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from typing import List, Tuple
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from arq import ArqRedis, create_pool
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from barker.core.config import settings
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from sqlalchemy import and_, or_
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from sqlalchemy.orm import Session
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from ..core.arq import settings as redis_settings
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from ..models.db_setting import DbSetting
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from ..models.inventory import Inventory
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from ..models.printer import Printer
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from ..models.product_version import ProductVersion
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from ..models.section_printer import SectionPrinter
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from ..models.voucher import Voucher
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from ..models.voucher_type import VoucherType
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from . import currency_format, format_no_decimals
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def print_bill(voucher_id: uuid.UUID, db: Session):
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locale.setlocale(locale.LC_MONETARY, "en_IN")
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voucher: Voucher = db.query(Voucher).filter(Voucher.id == voucher_id).first()
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printer = (
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db.query(Printer)
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.join(SectionPrinter.printer)
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.filter(SectionPrinter.section_id == voucher.food_table.section_id)
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.filter(SectionPrinter.menu_category_id == None) # noqa: E711
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.first()
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)
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items_dict = {}
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tax = {}
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for i in [i for k in voucher.kots for i in k.inventories]:
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key = (
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i.product_id,
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i.is_happy_hour,
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tuple(m.modifier_id for m in i.modifiers if m.modifier.show_in_bill),
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)
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if key in items_dict:
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items_dict[key].quantity += i.quantity
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else:
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items_dict[key] = i
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get_tax_item(i.tax.id, i.tax.name, i.tax_amount, tax)
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data = design_bill(voucher, items_dict.values(), tax.values(), db)
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redis: ArqRedis = asyncio.run(create_pool(redis_settings))
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asyncio.run(
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redis.enqueue_job(
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"sent_to_printer", data, printer.address, "\x1dV\x41\x03", _queue_name=f"barker:print:{printer.name}"
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)
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)
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def get_tax_item(id_: uuid.UUID, tax_name: str, amount: Decimal, tax_dict: {}) -> None:
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items = tax_name.split(";")
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if len(items) == 1:
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key = (id_, 0)
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old_amount = tax_dict[key][1] if key in tax_dict else 0
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tax_dict[key] = tax_name, round(amount + old_amount, 2)
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else:
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for i, item in enumerate(it.strip() for it in items):
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key = (id_, i)
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old_amount = tax_dict[key][1] if key in tax_dict else 0
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match = re.match(r"(^.*)\s+\((.*?)/(.*?)\)[^(]*$", item)
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if not match or len(match.groups()) != 3:
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raise Exception("Error in tax as it has multiple items, but the format is wrong.")
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sub_amount = round(amount * Decimal(match.group(2)) / Decimal(match.group(3)), 2)
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tax_dict[(id_, i)] = match.group(1), round(sub_amount + old_amount, 2)
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def design_bill(
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voucher: Voucher,
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items: List[Tuple[Inventory, Decimal]],
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tax: List[Tuple[str, Decimal]],
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db: Session,
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):
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# Header
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s = "\n\r" + db.query(DbSetting).filter(DbSetting.name == "Header").first().data["Text"]
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if voucher.voucher_type == VoucherType.REGULAR_BILL:
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s += "\n\r" + "Retail Invoice".center(42)
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s += "\n\r"
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elif voucher.voucher_type == VoucherType.NO_CHARGE:
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s += "\n\r" + "NO CHARGE - THIS IS NOT A BILL - DON'T PAY".center(42)
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s += "\n\r"
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elif voucher.voucher_type == VoucherType.STAFF:
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s += "\n\r" + "STAFF CONSUMPTION -- THIS IS NOT A BILL".center(42)
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s += "\n\r"
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# Products
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date = voucher.date + timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES)
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s += "\n\r" + f"Bill No: {voucher.full_bill_id:>12} {date:%d-%b-%Y %H:%M}"
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s += "\n\r" + "Table No.: " + voucher.food_table.name
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s += "\n\r" + "-" * 42
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s += "\n\r" + "Qty. Particulars Price Amount"
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s += "\n\r" + "-" * 42
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for item in [i for i in items if i.quantity != 0]:
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product: ProductVersion = (
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db.query(ProductVersion)
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.filter(
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and_(
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ProductVersion.product_id == item.product_id,
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or_(
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ProductVersion.valid_from == None, # noqa: E711
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ProductVersion.valid_from
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<= (voucher.date - timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES)).date(),
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),
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or_(
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ProductVersion.valid_till == None, # noqa: E711
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ProductVersion.valid_till
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>= (voucher.date - timedelta(minutes=settings.NEW_DAY_OFFSET_MINUTES)).date(),
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),
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)
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)
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.first()
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)
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name = "H H " + product.full_name if item.is_happy_hour else product.full_name
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s += (
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f"\n\r"
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f"{item.quantity: >5.2f} {name:<22.22} {format_no_decimals(item.price): >6}"
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f" {format_no_decimals(item.price * item.quantity): >6}"
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)
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for m in [m for m in item.modifiers if m.modifier.show_in_bill]:
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s += f"\n\r -- {m.modifier.name: <38.38}"
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s += "\n\r" + "------------------------------------------"
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# Totals
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amount = sum(i.quantity * i.price for i in items)
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s += f"\n\r{'Subtotal :': >32} {currency_format(amount): >9}"
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amount = sum(i.quantity * i.price for i in items if i.is_happy_hour)
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if amount != 0:
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s += f"\n\r{'Happy Hour Discount :': >32} {currency_format(amount): >9}"
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amount = sum(i.quantity * i.effective_price * i.discount for i in items)
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if amount != 0:
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s += f"\n\r{'Discount :': >32} {currency_format(amount): >9}"
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for t in tax:
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if t[1] != 0:
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s += f"\n\r{t[0]: >30} : {currency_format(t[1]): >9}"
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s += f"\n\r{'Total Amount :': >32} {currency_format(round(voucher.amount)): >9}"
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s += "\n\r" + "-" * 42
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if voucher.voucher_type != VoucherType.REGULAR_BILL:
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s += "\n\r" + "THIS IS NOT A BILL - DON'T PAY".center(42)
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s += "\n\r" + "-" * 42
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if voucher.narration:
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s += f"\n\r{voucher.narration: ^42}"
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s += "\n\r" + "-" * 42
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if voucher.customer:
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s += f"\n\r{voucher.customer.name}\n\r{voucher.customer.phone}\n\r{voucher.customer.address}"
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s += "\n\r" + "-" * 42
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s += "\n\r" + "Cashier : " + voucher.user.name
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s += "\n\r" + db.query(DbSetting).filter(DbSetting.name == "Footer").first().data["Text"]
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return s
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