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solucao.py
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solucao.py
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# from __future__ import annotations
from typing import List, Tuple
import pytermgui as ptg
saldo: float = 0.0
limite: float = 500.0
extrato: List[Tuple[str, float]] = []
numero_saques: int = 0
LIMITE_SAQUES: int = 3
def _configure_widgets() -> None:
"""Define a configuração de todos os widgets globais."""
ptg.boxes.SINGLE.set_chars_of(ptg.Window)
def _define_layout() -> ptg.Layout:
"""Define o layout da aplicação."""
layout = ptg.Layout()
layout.add_slot("header", height=1)
layout.add_break()
layout.add_slot("body")
layout.add_break()
layout.add_slot("footer", height=1)
return layout
def _confirm_quit(manager: ptg.WindowManager) -> None:
"""Cria a janela de confirmação de saída."""
def modal_close(*_: ptg.Button) -> None:
modal.close(animate=False)
modal = ptg.Window(
"[bold]Tem certeza que deseja sair?",
"",
ptg.Container(
ptg.Splitter(
ptg.KeyboardButton(
"Sim", lambda *_: manager.stop(), bound="s"
),
ptg.KeyboardButton(
"Não",
modal_close,
bound="n",
),
),
),
).center()
modal.select(1)
manager.add(modal, animate=False)
def depositar_(manager: ptg.WindowManager) -> None:
def modal_close(*_: ptg.Button) -> None:
modal.close(animate=False)
def depositar_impl(manager: ptg.WindowManager, input: str) -> None:
global saldo
global extrato
valor = float(input)
def alert_close(*_: ptg.Button) -> None:
alert.close(animate=False)
if valor > 0:
saldo += valor
extrato.append((f"Depósito: R$ {valor:.2f}", valor))
modal_close()
else:
alert = (
ptg.Window(
"[bold]A operação de depósito falhou",
"",
"Tente novamente.",
ptg.Container(ptg.Button("OK", alert_close)),
)
).center()
manager.add(alert, animate=False)
input_field = ptg.InputField("", multiline=False)
modal = ptg.Window(
"[bold]Digite o valor do depósito",
"",
ptg.Container(
ptg.Splitter(
input_field,
ptg.Button(
"Enter",
lambda *_: depositar_impl(manager, input_field.value),
),
),
),
ptg.Button(
"Cancelar (Esc)",
modal_close,
),
).center()
modal.bind(ptg.input.keys.ESC, modal_close)
modal.select(0)
manager.add(modal, animate=False)
def sacar_(manager: ptg.WindowManager) -> None:
def modal_close(*_: ptg.Button) -> None:
modal.close(animate=False)
def sacar_impl(manager: ptg.WindowManager, input: str) -> None:
global saldo
global extrato
global numero_saques
global LIMITE_SAQUES
valor = float(input)
def alert_close(*_: ptg.Button) -> None:
alert.close(animate=False)
valor = float(input)
excedeu_saldo = valor > saldo
excedeu_limite = valor > limite
excedeu_saques = numero_saques >= LIMITE_SAQUES
msg = ""
if excedeu_saldo:
msg = "Você não tem saldo suficiente."
elif excedeu_limite:
msg = "Operação falhou! O valor do saque excede o limite."
elif excedeu_saques:
msg = "Operação falhou! Número máximo de saques excedido."
elif valor > 0:
saldo -= valor
extrato.append((f"Saque: R$ {valor:.2f}", valor))
numero_saques += 1
modal_close()
return
else:
msg = "Operação falhou! O valor informado é inválido."
alert = (
ptg.Window(
"[bold]A operação de saque falhou",
"",
f"{msg}",
ptg.Container(ptg.Button("OK", alert_close)),
)
).center()
manager.add(alert, animate=False)
input_field = ptg.InputField("", multiline=False)
modal = ptg.Window(
"[bold]Digite o valor que deseja sacar",
"",
ptg.Container(
ptg.Splitter(
input_field,
ptg.Button(
"Enter",
lambda *_: sacar_impl(manager, input_field.value),
),
),
),
ptg.Button(
"Cancelar (Esc)",
modal_close,
),
).center()
modal.bind(ptg.input.keys.ESC, modal_close)
modal.select(0)
manager.add(modal, animate=False)
def extrato_(manager: ptg.WindowManager) -> None:
global extrato
global saldo
def modal_close(*_: ptg.Button) -> None:
modal.close(animate=False)
modal = (
ptg.Window(
"[bold]Extrato",
"",
"\n".join(map(lambda t: t[0], extrato)),
f"Saldo: R$ {saldo:.2f}",
ptg.Container(
ptg.Button(
"Ok",
modal_close,
)
),
).center()
if extrato
else ptg.Window(
"[bold]A operação de extrato falhou",
"",
"Extrato vazio.",
ptg.Container(
ptg.Button(
"Ok",
modal_close,
)
),
).center()
)
modal.bind(ptg.input.keys.ESC, modal_close)
modal.select(0)
manager.add(modal, animate=False)
pass
def main(argv: list[str] | None = None) -> None:
"""Entrada da aplicação."""
with ptg.WindowManager() as manager:
manager.layout = _define_layout()
header = ptg.Window(
"Bem Vindo!",
box="EMPTY",
)
manager.add(header, animate=False)
body = ptg.Window(
ptg.Container(
ptg.Container(
"Escolha a operação",
box=ptg.boxes.Box([" ", " x ", " "]),
),
ptg.Splitter(
ptg.Button(
"Depositar",
lambda *_: depositar_(manager),
),
ptg.Button(
"Sacar",
lambda *_: sacar_(manager),
),
ptg.Button(
"Extrato",
lambda *_: extrato_(manager),
),
),
static_width=64,
),
box="EMPTY",
)
manager.add(body, assign="body", animate=False)
footer = ptg.Window(
ptg.Button(
"Sair (q)",
lambda *_: _confirm_quit(manager),
),
box="EMPTY",
)
manager.add(footer, assign="footer", animate=False)
manager.bind("q", lambda *_: _confirm_quit(manager))
manager.focus(body)
ptg.tim.print("\n[!gradient(210)]Tchau! Até a próxima!")
# global extrato
# import pprint as pp
# pp.pprint(extrato)
if __name__ == "__main__":
main()