Export balances to CSV

from datetime import UTC, datetime

from io import StringIO

from textual.app import App, ComposeResult

from textual.containers import VerticalScroll

from textual.events import DeliveryComplete

from textual.widgets import Footer, Header

from poolpay import db

from poolpay.admin.AddPerson import AddPerson

from poolpay.admin.PersonsTable import PersonsTable, to_row

from poolpay.csv.get_persons_csv import get_persons_csv

from poolpay.model.Card import Card

from poolpay.model.Person import Person

    BINDINGS = [

        ("n", "add_person", "Neue Person hinzufügen"),

        ("d", "toggle_dark", "Dark Mode umschalten"),

        ("e", "export_csv", "CSV exportieren"),

        ("f5", "reload", "Neu laden"),

    ]

        self.title = "PoolPay"

        self.sub_title = "Administration"

    def on_delivery_complete(self, delivery_complete: DeliveryComplete) -> None:

        self.notify(f"Gespeichert unter {delivery_complete.path}")

    def on_delivery_failed(self) -> None:

        self.notify("Speichern fehlgeschlagen", severity="error")

    def action_reload(self) -> None:

        table = self.query_one(PersonsTable)

        table.reload()

            self.query_one(PersonsTable).add_rows((to_row(p),))

        self.push_screen(AddPerson(), callback=add_person)

    def action_export_csv(self) -> None:

        persons_csv = get_persons_csv()

        # Timestamp in the form "2025-06-04T190207Z" (UTC date, only second-level precision)

        now = datetime.now(tz=UTC).isoformat()[:19].replace(":", "") + "Z"

        filename = f"{now}_poolpay.csv"

        self.deliver_text(StringIO(persons_csv), save_filename=filename)