from tkinter import *
root = Tk()
root.geometry("550x500")
root.resizable(0, 0)
root.config(bg="#1320b0")
root.title("Calcular Rentabilidade Investimento")
def limpar():
    Valor_Inicial_entrada.delete(0, END)
    Suplementos_Mensais_entrada.delete(0, END)
    Taxa_rendibilidade_entrada.delete(0, END)
    Anos_entrada.delete(0, END)

def app():
    prazo = Anos.get()
    tx_ren =Taxa_rendibilidade.get()
    tx_renpp = tx_ren/100
    mensal = Suplementos_Mensais.get()
    v_inical = Valor_Inicial.get()
    saldo = v_inical
    for _ in range(prazo):
             saldo = saldo + mensal
             saldo = saldo * (1 + tx_renpp)

    rentabilidade = saldo - (v_inical + (mensal * prazo))
    rentabilidadearr = round(rentabilidade,2)
    saldoarr = round(saldo,2)
    mensagem = f'Saldo final do investimento após {prazo} anos: {saldoarr}.\n' \
               f'Rentabilidade total do investimento:{rentabilidadearr}'
    resultado.set(mensagem)

titulo = Label(text="Calcular Rentabilidade Investimento",
               font=("Arial", "15", "bold"),bg="#1320b0",fg="#bdecf2")
titulo.place(relx=0.08, rely=0.05)
texto_sub1  = Label(text="Valor Inicial:",
                    font=("Arial", "12", "bold"),bg="#1320b0",fg="#bdecf2")
texto_sub1.place(relx=0.23, rely=0.15)

texto_sub2  = Label(text="Suplementos Mensais:",
                    font=("Arial", "12", "bold"),bg="#1320b0",fg="#bdecf2")
texto_sub2.place(relx=0.05, rely=0.25)

texto_sub3  = Label(text="Taxa de rendibilidade(%):",
                    font=("Arial", "12", "bold"),bg="#1320b0",fg="#bdecf2")
texto_sub3.place(relx=0.05, rely=0.35)

texto_sub4 = Label(text="Anos:",
                    font=("Arial", "12", "bold"),bg="#1320b0",fg="#bdecf2")
texto_sub4.place(relx=0.3, rely=0.45)

Valor_Inicial = DoubleVar()
Valor_Inicial_entrada = Entry(textvariable=Valor_Inicial,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Valor_Inicial_entrada.place(relx=0.55, rely=0.15, relwidth=0.3)


Suplementos_Mensais = DoubleVar()
Suplementos_Mensais_entrada = Entry(textvariable=Suplementos_Mensais,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Suplementos_Mensais_entrada.place(relx=0.55, rely=0.25, relwidth=0.3)


Taxa_rendibilidade = DoubleVar()
Taxa_rendibilidade_entrada = Entry(textvariable=Taxa_rendibilidade,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Taxa_rendibilidade_entrada.place(relx=0.55, rely=0.35, relwidth=0.3)

Anos = IntVar()
Anos_entrada = Entry(textvariable=Anos,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Anos_entrada.place(relx=0.55, rely=0.45, relwidth=0.3)

but1 = Button(text="Verificar", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.05, rely=0.6, 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=0.35, rely=0.6, 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=0.65, rely=0.6, relwidth=0.25, relheight=0.1)

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