from tkinter import *
import requests

root = Tk()
root.geometry("400x400")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Converter Real para Euro vice-versa")

# Títulos e Labels
titulo = Label(text="Converter Real para Euro vice-versa",
               font=("Arial", "16", "bold"), bg="#103030", fg="#49e3e3")
titulo.place(relx=0.05, rely=0.05)

texto_sub1 = Label(text="Valor: ",
                   font=("Arial", "17", "bold"), bg="#103030", fg="#49e3e3")
texto_sub1.place(relx=0.2, rely=0.2)

# Entrada de valor
Valor = StringVar()
Valor_entrada = Entry(textvariable=Valor,
                      font=("Arial", "12", "bold"),
                      bg="white", fg="blue", justify='center')
Valor_entrada.place(relx=0.5, rely=0.21, relwidth=0.35)


# Função para obter a taxa de câmbio
def obter_taxa_euro_para_real():
    url = "https://api.exchangerate-api.com/v4/latest/EUR"
    response = requests.get(url)
    dados = response.json()
    return dados['rates']['BRL']


# Função para realizar a conversão
def app(*args):
    try:
        Var = var.get()
        valor = float(Valor.get())
        Taxa_euro_real = obter_taxa_euro_para_real()

        if Var == "Euro":
            reais = valor * Taxa_euro_real
            resultado_texto.config(text=f"{valor} Euros ---> {round(reais, 2)} Reais")
        elif Var == "Real":
            euro = valor / Taxa_euro_real
            resultado_texto.config(text=f"{valor} Reais ---> {round(euro, 2)} Euros")

    except ValueError:
        resultado_texto.config(text="Valor digitado inválido!")


# Dropdown menu para selecionar moeda
dropDownList = ["Real", "Euro"]
var = StringVar()
dropdown = OptionMenu(root, var, *dropDownList, command=app)
var.set(dropDownList[0])
dropdown.place(relx=0.3, rely=0.35, relwidth=0.45)


# Função para limpar os campos
def limpar():
    Valor_entrada.delete(0, END)
    resultado_texto.config(text="")


# Botões
but1 = Button(text="Calcular", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.1, rely=0.65, relwidth=0.25, relheight=0.1)

but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.4, rely=0.65, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                  font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.7, rely=0.65, relwidth=0.25, relheight=0.1)

resultado_texto = Label(text="",
                        font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.8, relwidth=0.9, relheight=0.15)

root.mainloop()