1232 lines
47 KiB
Python
1232 lines
47 KiB
Python
# -*- coding: utf-8; -*-
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################################################################################
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#
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# WuttaPOS -- Pythonic Point of Sale System
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# Copyright © 2023 Lance Edgar
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#
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# This file is part of WuttaPOS.
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#
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# WuttaPOS is free software: you can redistribute it and/or modify it under the
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# terms of the GNU General Public License as published by the Free Software
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# Foundation, either version 3 of the License, or (at your option) any later
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# version.
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#
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# WuttaPOS is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# WuttaPOS. If not, see <http://www.gnu.org/licenses/>.
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#
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################################################################################
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"""
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WuttaPOS - POS view
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"""
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import decimal
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import logging
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import time
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import flet as ft
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from .base import WuttaView
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from wuttapos.controls.custlookup import WuttaCustomerLookup
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from wuttapos.controls.itemlookup import WuttaProductLookup
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from wuttapos.controls.txnitem import WuttaTxnItem
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log = logging.getLogger(__name__)
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class POSView(WuttaView):
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"""
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Main POS view for WuttaPOS
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"""
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# TODO: should be configurable?
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default_button_size = 100
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default_font_size = 40
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disabled_bgcolor = '#aaaaaa'
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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# keep a list of "informed" controls - i.e. child controls
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# within this view, which need to stay abreast of global
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# changes to the transaction, customer etc.
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self.informed_controls = []
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if hasattr(self, 'header'):
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self.informed_controls.append(self.header)
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def informed_refresh(self):
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for control in self.informed_controls:
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control.informed_refresh()
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def reset(self, e=None, clear_quantity=True):
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"""
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This is a convenience method, meant only to clear the main
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input and set focus to it. Will also update() the page.
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The ``e`` arg is ignored and accepted only so this method may
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be registered as an event handler, e.g. ``on_cancel``.
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"""
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# clear set (@) quantity
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if clear_quantity:
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self.set_quantity.data = None
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self.set_quantity.value = None
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# clear/focus main input
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self.main_input.value = ''
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self.main_input.focus()
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self.page.update()
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def set_customer(self, customer, batch=None):
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session = self.app.get_session(customer)
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user = self.get_current_user(session)
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if not batch:
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batch = self.get_current_batch(session, user=user)
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handler = self.get_batch_handler()
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handler.set_customer(batch, customer, user=user)
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self.page.session.set('txn_display', handler.get_screen_txn_display(batch))
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self.page.session.set('cust_uuid', customer.uuid)
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self.page.session.set('cust_display', handler.get_screen_cust_display(customer=customer))
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self.informed_refresh()
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self.page.snack_bar = ft.SnackBar(ft.Text(f"CUSTOMER SET: {customer}",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='green',
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duration=1500)
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self.page.snack_bar.open = True
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def item_click(self, e):
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value = self.main_input.value
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if value:
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if not self.attempt_add_product():
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self.item_lookup(value)
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else:
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self.item_lookup()
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def attempt_add_product(self, uuid=None, record_badscan=False):
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session = self.app.make_session()
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handler = self.get_batch_handler()
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user = self.get_current_user(session)
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batch = self.get_current_batch(session, user=user)
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entry = self.main_input.value
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quantity = 1
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if self.set_quantity.data is not None:
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quantity = self.set_quantity.data
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product = None
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item_entry = entry
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if uuid:
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product = session.get(self.model.Product, uuid)
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assert product
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key = self.app.get_product_key_field()
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item_entry = str(getattr(product, key) or '') or uuid
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row = handler.process_entry(batch, product or entry, quantity=quantity,
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item_entry=item_entry, user=user)
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if row:
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session.commit()
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self.add_row_item(row)
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self.items.scroll_to(offset=-1, duration=100)
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self.txn_total.value = self.app.render_currency(batch.get_balance())
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self.reset()
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else:
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if record_badscan:
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handler.record_badscan(batch, entry, quantity=quantity, user=user)
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self.page.snack_bar = ft.SnackBar(ft.Text(f"PRODUCT NOT FOUND: {entry}",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='yellow',
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duration=1500)
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self.page.snack_bar.open = True
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session.commit()
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session.close()
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self.page.update()
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return bool(row)
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def item_lookup(self, value=None):
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def select(uuid):
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self.attempt_add_product(uuid=uuid)
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dlg.open = False
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self.reset()
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def cancel(e):
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dlg.open = False
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self.reset(clear_quantity=False)
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dlg = ft.AlertDialog(
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modal=True,
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title=ft.Text("Product Lookup"),
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content=WuttaProductLookup(self.config, initial_search=value,
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on_select=select, on_cancel=cancel),
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)
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self.page.dialog = dlg
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dlg.open = True
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self.page.update()
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def customer_lookup(self, value=None):
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def select(uuid):
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session = self.app.make_session()
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customer = session.get(self.model.Customer, uuid)
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self.set_customer(customer)
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session.commit()
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session.close()
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dlg.open = False
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self.reset()
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def cancel(e):
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dlg.open = False
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self.reset()
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dlg = ft.AlertDialog(
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modal=True,
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title=ft.Text("Customer Lookup"),
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content=WuttaCustomerLookup(self.config, initial_search=value,
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on_select=select, on_cancel=cancel),
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)
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self.page.dialog = dlg
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dlg.open = True
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self.page.update()
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def customer_info(self):
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clientele = self.app.get_clientele_handler()
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session = self.app.make_session()
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entry = self.main_input.value
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if entry:
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different = True
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customer = clientele.locate_customer_for_entry(session, entry)
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if not customer:
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session.close()
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self.page.snack_bar = ft.SnackBar(ft.Text(f"CUSTOMER NOT FOUND: {entry}",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='yellow',
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duration=1500)
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self.page.snack_bar.open = True
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self.page.update()
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return
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else:
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different = False
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customer = session.get(self.model.Customer, self.page.session.get('cust_uuid'))
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assert customer
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info = clientele.get_customer_info_markdown(customer)
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session.close()
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def close(e):
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dlg.open = False
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self.reset()
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font_size = self.default_font_size * 0.8
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dlg = ft.AlertDialog(
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# modal=True,
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title=ft.Text("Customer Info"),
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content=ft.Container(ft.Column(
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[
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ft.Container(
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content=ft.Text("NOTE: this is a DIFFERENT customer than the txn has!"),
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bgcolor='yellow',
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visible=different,
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),
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ft.Divider(),
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ft.Container(
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theme_mode=ft.ThemeMode.SYSTEM,
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theme=ft.Theme(text_theme=ft.TextTheme(
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body_medium=ft.TextStyle(
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size=24,
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color='black',
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))),
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content=ft.Markdown(info),
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),
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],
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height=500,
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width=500,
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)),
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actions=[
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ft.Container(content=ft.Text("Close",
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size=font_size,
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size * 0.8,
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width=self.default_button_size * 1.2,
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alignment=ft.alignment.center,
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bgcolor='blue',
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=close),
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],
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# actions_alignment=ft.MainAxisAlignment.END,
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)
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self.page.dialog = dlg
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dlg.open = True
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self.page.update()
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def customer_prompt(self):
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def view_info(e):
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dlg.open = False
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self.page.update()
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# cf. https://github.com/flet-dev/flet/issues/1670
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time.sleep(0.1)
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self.customer_info()
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def remove(e):
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dlg.open = False
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self.page.update()
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# cf. https://github.com/flet-dev/flet/issues/1670
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time.sleep(0.1)
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self.remove_customer_prompt()
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def replace(e):
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dlg.open = False
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self.page.update()
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# cf. https://github.com/flet-dev/flet/issues/1670
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time.sleep(0.1)
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entry = self.main_input.value
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if entry:
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if not self.attempt_set_customer(entry):
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self.customer_lookup(entry)
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else:
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self.customer_lookup()
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def cancel(e):
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dlg.open = False
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self.reset()
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font_size = self.default_font_size * 0.8
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dlg = ft.AlertDialog(
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# modal=True,
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title=ft.Text("Customer Already Selected"),
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content=ft.Text("What would you like to do?", size=20),
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actions=[
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ft.Container(content=ft.Text("Remove",
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size=font_size,
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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bgcolor='red',
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=remove),
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ft.Container(content=ft.Text("Replace",
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size=font_size,
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color='black',
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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bgcolor='yellow',
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=replace),
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ft.Container(content=ft.Text("View Info",
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size=font_size,
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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bgcolor='blue',
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=view_info),
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ft.Container(content=ft.Text("Cancel",
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size=font_size,
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# color='black',
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=cancel),
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])
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self.page.dialog = dlg
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dlg.open = True
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self.page.update()
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def remove_customer_prompt(self):
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def remove(e):
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session = self.app.make_session()
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user = self.get_current_user(session)
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handler = self.get_batch_handler()
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batch = self.get_current_batch(session, user=user)
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handler.set_customer(batch, None, user=user)
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session.commit()
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session.close()
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self.page.session.set('cust_uuid', None)
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self.page.session.set('cust_display', None)
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self.informed_refresh()
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dlg.open = False
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self.page.snack_bar = ft.SnackBar(ft.Text("CUSTOMER REMOVED",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='yellow',
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duration=1500)
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self.page.snack_bar.open = True
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self.reset()
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def cancel(e):
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dlg.open = False
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self.reset()
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font_size = self.default_font_size * 0.8
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dlg = ft.AlertDialog(
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title=ft.Text("Remove Customer"),
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content=ft.Text("Really remove the customer from this transaction?", size=20),
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actions=[
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ft.Container(content=ft.Text("Yes, Remove",
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size=font_size,
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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bgcolor='red',
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=remove),
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ft.Container(content=ft.Text("Cancel",
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size=font_size,
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weight=ft.FontWeight.BOLD),
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height=self.default_button_size,
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width=self.default_button_size * 2.5,
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alignment=ft.alignment.center,
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border=ft.border.all(1, 'black'),
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border_radius=ft.border_radius.all(5),
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on_click=cancel),
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])
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self.page.dialog = dlg
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dlg.open = True
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self.page.update()
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def attempt_set_customer(self, entry=None):
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session = self.app.make_session()
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customer = self.app.get_clientele_handler().locate_customer_for_entry(session, entry)
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if customer:
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self.set_customer(customer)
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self.reset()
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else: # customer not found
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self.page.snack_bar = ft.SnackBar(ft.Text(f"CUSTOMER NOT FOUND: {entry}",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='yellow',
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duration=1500)
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self.page.snack_bar.open = True
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# TODO: should use reset() here?
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self.main_input.focus()
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self.page.update()
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session.commit()
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session.close()
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return bool(customer)
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def customer_click(self, e):
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# prompt user to replace customer if already set
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if self.page.session.get('cust_uuid'):
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self.customer_prompt()
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else:
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value = self.main_input.value
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if value:
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# okay try to set it with given value
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if not self.attempt_set_customer(value):
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self.customer_lookup(value)
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else:
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# no value provided, so do lookup
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self.customer_lookup()
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def build_controls(self):
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session = self.app.make_session()
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handler = self.get_batch_handler()
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self.tender_cash = handler.get_tender(session, 'cash')
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self.tender_check = handler.get_tender(session, 'check')
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session.expunge_all()
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session.close()
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self.main_input = ft.TextField(on_submit=self.main_submit,
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text_size=24,
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text_style=ft.TextStyle(weight=ft.FontWeight.BOLD),
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autofocus=True)
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self.selected_item = None
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self.items = ft.ListView(
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item_extent=50,
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height=800,
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)
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self.txn_total = ft.Text("", size=40)
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self.items_column = ft.Column(
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controls=[
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ft.Container(
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content=self.items,
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padding=ft.padding.only(10, 0, 10, 0)),
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ft.Row([self.txn_total],
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alignment=ft.MainAxisAlignment.END),
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],
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expand=1,
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)
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def tenkey_click(e):
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value = e.control.content.value
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if value == 'ENTER':
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self.main_submit()
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elif value == '⌫': # backspace
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if self.main_input.value:
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self.main_input.value = self.main_input.value[:-1]
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self.main_input.focus()
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self.page.update()
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elif value == 'CE': # clear entry
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if self.main_input.value:
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self.main_input.value = ""
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elif self.set_quantity.data is not None:
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self.set_quantity.data = None
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self.set_quantity.value = None
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elif self.selected_item:
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self.selected_item.bgcolor = 'white'
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self.selected_item = None
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self.main_input.focus()
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self.page.update()
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elif value == '@':
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quantity = self.main_input.value
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valid = False
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if self.set_quantity.data is not None:
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quantity = self.set_quantity.data
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self.page.snack_bar = ft.SnackBar(ft.Text(f"QUANTITY ALREADY SET: {quantity}",
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color='black',
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size=20,
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weight=ft.FontWeight.BOLD),
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bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
|
|
else:
|
|
try:
|
|
quantity = decimal.Decimal(quantity)
|
|
valid = True
|
|
except decimal.InvalidOperation:
|
|
pass
|
|
|
|
if valid and quantity:
|
|
self.set_quantity.data = quantity
|
|
self.set_quantity.value = self.app.render_quantity(quantity) + " @ "
|
|
self.main_input.value = ""
|
|
self.main_input.focus()
|
|
|
|
else:
|
|
self.page.snack_bar = ft.SnackBar(ft.Text(f"INVALID @ QUANTITY: {quantity}",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
|
|
self.page.update()
|
|
|
|
elif value == '↑': # UP
|
|
|
|
# select previous item, if selection in progress
|
|
if self.selected_item:
|
|
i = self.items.controls.index(self.selected_item)
|
|
if i > 0:
|
|
self.items.scroll_to(delta=-50, duration=100)
|
|
self.select_txn_item(self.items.controls[i - 1])
|
|
return
|
|
|
|
self.items.scroll_to(delta=-50, duration=100)
|
|
self.page.update()
|
|
|
|
elif value == '↓':
|
|
|
|
# select next item, if selection in progress
|
|
if self.selected_item:
|
|
i = self.items.controls.index(self.selected_item)
|
|
if (i + 1) < len(self.items.controls):
|
|
self.items.scroll_to(delta=50, duration=100)
|
|
self.select_txn_item(self.items.controls[i + 1])
|
|
return
|
|
|
|
self.items.scroll_to(delta=50, duration=100)
|
|
self.page.update()
|
|
|
|
else:
|
|
self.main_input.value = f"{self.main_input.value or ''}{value}"
|
|
self.main_input.focus()
|
|
self.page.update()
|
|
|
|
def up_long_press(e):
|
|
self.items.scroll_to(delta=-500, duration=100)
|
|
self.page.update()
|
|
|
|
def down_long_press(e):
|
|
self.items.scroll_to(delta=500, duration=100)
|
|
self.page.update()
|
|
|
|
tenkey_button_size = self.default_button_size
|
|
tenkey_font_size = self.default_font_size
|
|
|
|
def tenkey_button(text,
|
|
bgcolor='green',
|
|
height=tenkey_button_size,
|
|
width=tenkey_button_size,
|
|
on_click=tenkey_click,
|
|
on_long_press=None,
|
|
):
|
|
return ft.Container(content=ft.Text(text, size=tenkey_font_size,
|
|
weight=ft.FontWeight.BOLD),
|
|
height=height,
|
|
width=width,
|
|
on_click=on_click,
|
|
on_long_press=on_long_press,
|
|
alignment=ft.alignment.center,
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
bgcolor=bgcolor)
|
|
|
|
self.tenkey_menu = ft.Container(
|
|
content=ft.Column(
|
|
[
|
|
ft.Row(
|
|
[
|
|
tenkey_button("1"),
|
|
tenkey_button("2"),
|
|
tenkey_button("3"),
|
|
tenkey_button("@"),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
tenkey_button("4"),
|
|
tenkey_button("5"),
|
|
tenkey_button("6"),
|
|
tenkey_button("↑", on_long_press=up_long_press),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
tenkey_button("7"),
|
|
tenkey_button("8"),
|
|
tenkey_button("9"),
|
|
tenkey_button("↓", on_long_press=down_long_press),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
tenkey_button("0"),
|
|
# tenkey_button("00"),
|
|
tenkey_button("."),
|
|
tenkey_button("ENTER", width=tenkey_button_size * 2),
|
|
],
|
|
alignment=ft.MainAxisAlignment.SPACE_BETWEEN,
|
|
spacing=0,
|
|
),
|
|
],
|
|
spacing=0,
|
|
),
|
|
expand=0)
|
|
|
|
meta_button_height = tenkey_button_size
|
|
meta_button_width = meta_button_height * 2
|
|
meta_font_size = tenkey_font_size
|
|
|
|
def meta_button(text, on_click=None, bgcolor='blue', data=None,
|
|
font_size=None):
|
|
return ft.Container(content=ft.Text(text, size=font_size or meta_font_size,
|
|
weight=ft.FontWeight.BOLD),
|
|
height=meta_button_height,
|
|
width=meta_button_width,
|
|
on_click=on_click,
|
|
alignment=ft.alignment.center,
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
bgcolor=bgcolor,
|
|
data=data)
|
|
|
|
self.meta_menu = ft.Container(
|
|
content=ft.Column(
|
|
[
|
|
ft.Row(
|
|
[
|
|
meta_button("ITEM", bgcolor='blue', on_click=self.item_click),
|
|
meta_button("VOID", bgcolor='red', on_click=self.void_click),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
meta_button("CUST", bgcolor='blue', on_click=self.customer_click),
|
|
meta_button("MGR", bgcolor='yellow', on_click=self.not_supported),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
meta_button("TODO", bgcolor='blue', on_click=self.not_supported),
|
|
meta_button("TODO", bgcolor='blue', on_click=self.not_supported),
|
|
],
|
|
spacing=0,
|
|
),
|
|
ft.Row(
|
|
[
|
|
meta_button("TODO", bgcolor='blue', on_click=self.not_supported),
|
|
meta_button("(TEST ERROR)", bgcolor='red', on_click=self.not_supported,
|
|
font_size=24, data={'error': True}),
|
|
],
|
|
spacing=0,
|
|
),
|
|
],
|
|
spacing=0,
|
|
),
|
|
expand=0)
|
|
|
|
context_button_height = tenkey_button_size
|
|
context_button_width = context_button_height * 2
|
|
context_font_size = tenkey_font_size
|
|
|
|
def context_button(text, on_click=None, data=None):
|
|
return ft.Container(content=ft.Text(text, size=context_font_size,
|
|
weight=ft.FontWeight.BOLD),
|
|
height=context_button_height,
|
|
width=context_button_width,
|
|
on_click=on_click,
|
|
data=data,
|
|
alignment=ft.alignment.center,
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
bgcolor='orange')
|
|
|
|
self.context_menu = ft.Container(
|
|
content=ft.Column(
|
|
[
|
|
ft.Row(
|
|
[
|
|
self.make_cash_button(),
|
|
self.make_check_button(),
|
|
],
|
|
spacing=0,
|
|
),
|
|
],
|
|
spacing=0,
|
|
),
|
|
expand=0)
|
|
|
|
self.set_quantity = ft.Text(value=None, data=None, weight=ft.FontWeight.BOLD, size=40)
|
|
|
|
return [
|
|
self.build_header(),
|
|
|
|
ft.Row(
|
|
[
|
|
self.make_logo_image(height=80),
|
|
ft.Row(
|
|
[
|
|
self.set_quantity,
|
|
self.main_input,
|
|
tenkey_button("⌫", height=70, width=70),
|
|
tenkey_button("CE", height=70, width=70),
|
|
],
|
|
alignment=ft.MainAxisAlignment.CENTER,
|
|
expand=True,
|
|
),
|
|
],
|
|
),
|
|
|
|
ft.Row(),
|
|
ft.Row(),
|
|
ft.Row(),
|
|
|
|
ft.Row(
|
|
[
|
|
self.items_column,
|
|
ft.Column(
|
|
[
|
|
ft.Row(
|
|
[
|
|
self.tenkey_menu,
|
|
self.meta_menu,
|
|
],
|
|
),
|
|
self.context_menu,
|
|
],
|
|
),
|
|
],
|
|
vertical_alignment=ft.CrossAxisAlignment.START,
|
|
),
|
|
]
|
|
|
|
def make_text(self, *args, **kwargs):
|
|
kwargs.setdefault('weight', ft.FontWeight.BOLD)
|
|
kwargs.setdefault('size', 24)
|
|
return ft.Text(*args, **kwargs)
|
|
|
|
def make_tender_button(self, tender, **kwargs):
|
|
if isinstance(tender, self.model.Tender):
|
|
info = {'tender_code': tender.code,
|
|
'tender_name': tender.name}
|
|
else:
|
|
info = tender
|
|
|
|
font_size = kwargs.pop('font_size', self.default_font_size)
|
|
text = ft.Text(info['tender_name'],
|
|
size=font_size,
|
|
weight=ft.FontWeight.BOLD)
|
|
|
|
kw = {
|
|
'height': self.default_button_size,
|
|
'width': self.default_button_size * 2,
|
|
'on_click': self.tender_click,
|
|
'alignment': ft.alignment.center,
|
|
'border': ft.border.all(1, 'black'),
|
|
'border_radius': ft.border_radius.all(5),
|
|
'bgcolor': 'orange',
|
|
}
|
|
kw.update(kwargs)
|
|
kw['data'] = info
|
|
return ft.Container(content=text, **kw)
|
|
|
|
def make_cash_button(self, **kwargs):
|
|
cash = self.tender_cash or {'tender_code': 'CA',
|
|
'tender_name': "Cash"}
|
|
return self.make_tender_button(cash, **kwargs)
|
|
|
|
def make_check_button(self, **kwargs):
|
|
check = self.tender_check or {'tender_code': 'CK',
|
|
'tender_name': "Check"}
|
|
return self.make_tender_button(check, **kwargs)
|
|
|
|
def get_current_user(self, session):
|
|
uuid = self.page.session.get('user_uuid')
|
|
if uuid:
|
|
return session.get(self.model.User, uuid)
|
|
|
|
def get_current_batch(self, session, user=None, create=True):
|
|
handler = self.get_batch_handler()
|
|
|
|
if not user:
|
|
user = self.get_current_user(session)
|
|
|
|
batch, created = handler.get_current_batch(user, create=create, return_created=True)
|
|
|
|
if created:
|
|
self.page.session.set('txn_display', handler.get_screen_txn_display(batch))
|
|
self.informed_refresh()
|
|
|
|
return batch
|
|
|
|
def did_mount(self):
|
|
session = self.app.make_session()
|
|
batch = self.get_current_batch(session, create=False)
|
|
if batch:
|
|
|
|
handler = self.get_batch_handler()
|
|
self.page.session.set('txn_display', handler.get_screen_txn_display(batch))
|
|
self.page.session.set('cust_uuid', batch.customer_uuid)
|
|
self.page.session.set('cust_display', handler.get_screen_cust_display(batch=batch))
|
|
|
|
self.items.controls.clear()
|
|
for row in batch.active_rows():
|
|
self.add_row_item(row)
|
|
self.items.scroll_to(offset=-1, duration=100)
|
|
|
|
self.txn_total.value = self.app.render_currency(batch.get_balance())
|
|
|
|
else:
|
|
self.page.session.set('txn_display', None)
|
|
self.page.session.set('cust_uuid', None)
|
|
self.page.session.set('cust_display', None)
|
|
|
|
self.informed_refresh()
|
|
|
|
session.commit()
|
|
session.close()
|
|
self.page.update()
|
|
|
|
def not_supported(self, e=None, feature=None):
|
|
|
|
# test error handler
|
|
if e.control.data and e.control.data.get('error'):
|
|
raise RuntimeError("NOT YET SUPPORTED")
|
|
|
|
text = "NOT YET SUPPORTED"
|
|
if not feature and e:
|
|
feature = e.control.content.value
|
|
if feature:
|
|
text += f": {feature}"
|
|
self.page.snack_bar = ft.SnackBar(ft.Text(text, color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.page.update()
|
|
|
|
def add_row_item(self, row):
|
|
|
|
# TODO: row types ugh
|
|
if row.row_type not in (self.enum.POS_ROW_TYPE_SELL,
|
|
self.enum.POS_ROW_TYPE_TENDER,
|
|
self.enum.POS_ROW_TYPE_CHANGE_BACK):
|
|
return
|
|
|
|
self.items.controls.append(
|
|
ft.Container(
|
|
content=WuttaTxnItem(self.config, row),
|
|
border=ft.border.only(bottom=ft.border.BorderSide(1, 'gray')),
|
|
padding=ft.padding.only(0, 5, 0, 5),
|
|
on_click=self.list_item_click,
|
|
data={'row': row},
|
|
key=row.uuid,
|
|
))
|
|
|
|
def list_item_click(self, e):
|
|
self.select_txn_item(e.control)
|
|
|
|
def select_txn_item(self, item):
|
|
if self.selected_item:
|
|
self.selected_item.bgcolor = 'white'
|
|
|
|
item.bgcolor = 'blue'
|
|
self.selected_item = item
|
|
self.page.update()
|
|
|
|
def void_click(self, e):
|
|
|
|
def confirm(e):
|
|
dlg.open = False
|
|
|
|
session = self.app.make_session()
|
|
handler = self.get_batch_handler()
|
|
user = self.get_current_user(session)
|
|
batch = handler.get_current_batch(user, create=True)
|
|
|
|
if self.selected_item:
|
|
|
|
# void line
|
|
row = self.selected_item.data['row']
|
|
if row.void:
|
|
# cannot void an already void line
|
|
self.page.snack_bar = ft.SnackBar(ft.Text("LINE ALREADY VOID",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
|
|
elif row.row_type != self.enum.POS_ROW_TYPE_SELL:
|
|
# cannot void line unless of type 'sell'
|
|
self.page.snack_bar = ft.SnackBar(ft.Text("LINE DOES NOT ALLOW VOID",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
|
|
else:
|
|
# okay, void the line
|
|
row = session.get(row.__class__, row.uuid)
|
|
handler.void_row(row, user)
|
|
self.selected_item.data['row'] = row
|
|
self.selected_item.content.mark_void()
|
|
self.selected_item.bgcolor = 'white'
|
|
self.selected_item = None
|
|
|
|
# update screen to reflect new balance
|
|
self.txn_total.value = self.app.render_currency(batch.get_balance())
|
|
|
|
else:
|
|
# void txn
|
|
handler.void_batch(batch, user)
|
|
self.clear_all()
|
|
|
|
session.commit()
|
|
session.close()
|
|
self.reset()
|
|
|
|
def cancel(e):
|
|
dlg.open = False
|
|
self.reset()
|
|
|
|
session = self.app.make_session()
|
|
batch = self.get_current_batch(session, create=False)
|
|
session.close()
|
|
|
|
if batch:
|
|
|
|
# prompt to void something
|
|
target = 'LINE' if self.selected_item else 'TXN'
|
|
dlg = ft.AlertDialog(
|
|
title=ft.Text("Confirm VOID"),
|
|
content=ft.Text(f"Really VOID {target}?"),
|
|
actions=[
|
|
ft.Container(content=ft.Text(f"VOID {target}",
|
|
size=self.default_font_size,
|
|
color='black',
|
|
weight=ft.FontWeight.BOLD),
|
|
height=self.default_button_size,
|
|
width=self.default_button_size * 2.5,
|
|
alignment=ft.alignment.center,
|
|
bgcolor='red',
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
on_click=confirm),
|
|
ft.Container(content=ft.Text("Cancel",
|
|
size=self.default_font_size,
|
|
weight=ft.FontWeight.BOLD),
|
|
height=self.default_button_size,
|
|
width=self.default_button_size * 2.5,
|
|
alignment=ft.alignment.center,
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
on_click=cancel),
|
|
])
|
|
|
|
else: # nothing to void
|
|
|
|
dlg = ft.AlertDialog(
|
|
title=ft.Text("No Transaction"),
|
|
content=ft.Text("You do not have a transaction open currently.", size=20),
|
|
actions=[
|
|
ft.Container(content=ft.Text("Close",
|
|
size=self.default_font_size,
|
|
weight=ft.FontWeight.BOLD),
|
|
height=self.default_button_size,
|
|
width=self.default_button_size * 2.5,
|
|
alignment=ft.alignment.center,
|
|
border=ft.border.all(1, 'black'),
|
|
border_radius=ft.border_radius.all(5),
|
|
on_click=cancel),
|
|
])
|
|
|
|
self.page.dialog = dlg
|
|
dlg.open = True
|
|
self.page.update()
|
|
|
|
def tender_click(self, e):
|
|
session = self.app.make_session()
|
|
handler = self.get_batch_handler()
|
|
user = self.get_current_user(session)
|
|
batch = self.get_current_batch(session, user=user, create=False)
|
|
code = e.control.data['tender_code']
|
|
tender = handler.get_tender(session, code)
|
|
|
|
# nothing to do if no transaction
|
|
if not batch:
|
|
session.close()
|
|
self.page.snack_bar = ft.SnackBar(ft.Text("NO TRANSACTION",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.reset()
|
|
return
|
|
|
|
# nothing to do if zero sales
|
|
if not batch.get_balance():
|
|
session.close()
|
|
self.page.snack_bar = ft.SnackBar(ft.Text("NO SALES",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.reset()
|
|
return
|
|
|
|
# nothing to do if no amount provided
|
|
if not self.main_input.value:
|
|
session.close()
|
|
self.page.snack_bar = ft.SnackBar(ft.Text("MUST SPECIFY AMOUNT",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.reset()
|
|
return
|
|
|
|
# nothing to do if amount not valid
|
|
try:
|
|
amount = decimal.Decimal(self.main_input.value)
|
|
except:
|
|
session.close()
|
|
self.page.snack_bar = ft.SnackBar(ft.Text(f"AMOUNT NOT VALID: {self.main_input.value}",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.reset()
|
|
return
|
|
|
|
# do nothing if @ quantity present
|
|
if self.set_quantity.data:
|
|
session.close()
|
|
self.page.snack_bar = ft.SnackBar(ft.Text(f"QUANTITY NOT ALLOWED FOR TENDER: {self.set_quantity.value}",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='yellow',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
self.reset()
|
|
return
|
|
|
|
# tender / execute batch
|
|
try:
|
|
|
|
# TODO: still need support for the following:
|
|
# - if balance remains, update display (i.e. show this tender)
|
|
# - if this tender overpays, how to handle change back?
|
|
|
|
# apply tender amount to batch
|
|
# nb. this *may* execute the batch!
|
|
# nb. we negate the amount supplied by user
|
|
rows = handler.apply_tender(batch, user, tender or code, -amount)
|
|
|
|
except Exception as error:
|
|
session.rollback()
|
|
log.exception("failed to apply tender '%s' for %s in batch %s",
|
|
code, amount, batch.id_str)
|
|
self.page.snack_bar = ft.SnackBar(ft.Text(f"ERROR: {error}",
|
|
color='black',
|
|
size=20,
|
|
weight=ft.FontWeight.BOLD),
|
|
bgcolor='red',
|
|
duration=1500)
|
|
self.page.snack_bar.open = True
|
|
|
|
else:
|
|
session.commit()
|
|
|
|
# update screen to reflect new items/balance
|
|
for row in rows:
|
|
self.add_row_item(row)
|
|
self.txn_total.value = self.app.render_currency(batch.get_balance())
|
|
|
|
# executed batch means txn was finalized
|
|
if batch.executed:
|
|
|
|
# look for "change back" row, if found then show alert
|
|
last_row = rows[-1]
|
|
if last_row.row_type == self.enum.POS_ROW_TYPE_CHANGE_BACK:
|
|
|
|
def close_bs(e):
|
|
# user dismissed the change back alert; clear screen
|
|
bs.open = False
|
|
bs.update()
|
|
self.clear_all()
|
|
self.page.update()
|
|
|
|
bs = ft.BottomSheet(
|
|
ft.Container(
|
|
ft.Column(
|
|
[
|
|
ft.Text("Change Back", size=24,
|
|
weight=ft.FontWeight.BOLD),
|
|
ft.Divider(),
|
|
ft.Text("Please give customer change back:",
|
|
size=20),
|
|
ft.Text(self.app.render_currency(last_row.tender_total),
|
|
size=32, weight=ft.FontWeight.BOLD),
|
|
ft.Container(
|
|
content=self.make_button("Dismiss", on_click=close_bs,
|
|
height=80, width=120),
|
|
alignment=ft.alignment.center,
|
|
expand=1,
|
|
),
|
|
],
|
|
),
|
|
bgcolor='green',
|
|
padding=20,
|
|
),
|
|
open=True,
|
|
dismissible=False,
|
|
)
|
|
|
|
# show change back alert
|
|
# nb. we do *not* clear screen yet
|
|
self.page.overlay.append(bs)
|
|
|
|
else:
|
|
# txn finalized but no change back; clear screen
|
|
self.clear_all()
|
|
|
|
finally:
|
|
session.close()
|
|
|
|
self.reset()
|
|
|
|
def clear_all(self):
|
|
self.items.controls.clear()
|
|
self.txn_total.value = None
|
|
self.page.session.set('txn_display', None)
|
|
self.page.session.set('cust_uuid', None)
|
|
self.page.session.set('cust_display', None)
|
|
self.informed_refresh()
|
|
|
|
def main_submit(self, e=None):
|
|
if self.main_input.value:
|
|
self.attempt_add_product(record_badscan=True)
|
|
self.reset()
|