import tkinter as tk from tkinter import ttk, messagebox import requests import json import os

class CurrencyConverter: def init(self, root): self.root = root self.root.title("Currency Converter") self.history_file = "conversion_history.json" self.load_history()

    # API ключ (замените на ваш)
    self.api_key = "YOUR_API_KEY"

    self.setup_ui()

def setup_ui(self):
    # Выбор валюты FROM
    ttk.Label(self.root, text="Из:").grid(row=0, column=0, padx=5, pady=5)
    self.from_currency = ttk.Combobox(self.root, values=self.get_currencies())
    self.from_currency.grid(row=0, column=1, padx=5, pady=5)

    # Выбор валюты TO
    ttk.Label(self.root, text="В:").grid(row=1, column=0, padx=5, pady=5)
    self.to_currency = ttk.Combobox(self.root, values=self.get_currencies())
    self.to_currency.grid(row=1, column=1, padx=5, pady=5)

    # Поле ввода суммы
    ttk.Label(self.root, text="Сумма:").grid(row=2, column=0, padx=5, pady=5)
    self.amount_entry = ttk.Entry(self.root)
    self.amount_entry.grid(row=2, column=1, padx=5, pady=5)

    # Кнопка конвертации
    self.convert_btn = ttk.Button(self.root, text="Конвертировать", command=self.convert)
    self.convert_btn.grid(row=3, column=0, columnspan=2, pady=10)

    # Таблица истории
    self.history_tree = ttk.Treeview(self.root, columns=("From", "To", "Amount", "Result"), show="headings")
    self.history_tree.heading("From", text="Из валюты")
    self.history_tree.heading("To", text="В валюту")
    self.history_tree.heading("Amount", text="Сумма")
    self.history_tree.heading("Result", text="Результат")
    self.history_tree.grid(row=4, column=0, columnspan=2, padx=5, pady=5)

    self.refresh_history()

def get_currencies(self):
    # Список популярных валют
    return ["USD", "EUR", "RUB", "GBP", "JPY", "CNY"]

def load_history(self):
    if os.path.exists(self.history_file):
        with open(self.history_file, 'r', encoding='utf-8') as f:
            self.history = json.load(f)
    else:
        self.history = []

def save_history(self):
    with open(self.history_file, 'w', encoding='utf-8') as f:
        json.dump(self.history, f, ensure_ascii=False, indent=4)

def refresh_history(self):
    for item in self.history_tree.get_children():
        self.history_tree.delete(item)
    for record in self.history:
        self.history_tree.insert("", "end", values=(
            record["from"],
            record["to"],
            record["amount"],
            record["result"]
        ))

def convert(self):
    try:
        amount = float(self.amount_entry.get())
        if amount <= 0:
            messagebox.showerror("Ошибка", "Сумма должна быть положительным числом")
            return

        from_curr = self.from_currency.get()
        to_curr = self.to_currency.get()

        if not from_curr or not to_curr:
            messagebox.showerror("Ошибка", "Выберите валюты")
            return

        # Запрос к API
        url = f"https://api.exchangerate-api.com/v4/latest/{from_curr}"
        response = requests.get(url)
        data = response.json()

        rate = data["rates"].get(to_curr)
        if rate is None:
            messagebox.showerror("Ошибка", "Не удалось получить курс для выбранной валюты")
            return

        result = amount * rate

        # Сохранение в историю
        record = {
            "from": from_curr,
            "to": to_curr,
            "amount": amount,
            "result": round(result, 2)
        }
        self.history.append(record)
        self.save_history()
        self.refresh_history()

        messagebox.showinfo("Результат", f"{amount} {from_curr} = {result:.2f} {to_curr}")

    except ValueError:
        messagebox.showerror("Ошибка", "Введите корректное число")
    except Exception as e:
        messagebox.showerror("Ошибка", f"Произошла ошибка: {e}")

if name == "main": root = tk.Tk() app = CurrencyConverter(root) root.mainloop()

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