from tkinter import *
from tkinter import ttk

root = Tk()
root.geometry("700x420")
root.resizable(0, 0)
root.config(bg="#103030")
root.title("Progresso de Objetivo")
Label(
    root,
    text="Progresso de Objetivo",
    font=("Arial", 28, "bold"),
    bg="#103030",
    fg="#49e3e3"
).place(relx=0.18, rely=0.05)
Label(root, text="Meta (€):",
      font=("Arial", 18, "bold"),
      bg="#103030", fg="#49e3e3"
).place(relx=0.25, rely=0.25)

Label(root, text="Valor Atual (€):",
      font=("Arial", 18, "bold"),
      bg="#103030", fg="#49e3e3"
).place(relx=0.18, rely=0.45)

meta = StringVar()
atual = StringVar()

Entry(root, textvariable=meta,
      font=("Arial", 12, "bold"),
      justify="center"
).place(relx=0.5, rely=0.27, relwidth=0.35)

Entry(root, textvariable=atual,
      font=("Arial", 12, "bold"),
      justify="center"
).place(relx=0.5, rely=0.47, relwidth=0.35)
barra = ttk.Progressbar(
    root,
    orient="horizontal",
    length=400,
    mode="determinate"
)
barra.place(relx=0.15, rely=0.7)
resultado = Label(
    root,
    text="",
    font=("Arial", 12, "bold"),
    bg="#cfe2f3"
)
resultado.place(relx=0.05, rely=0.8, relwidth=0.9, relheight=0.12)

def calcular():
    try:
        m = float(meta.get())
        a = float(atual.get())
        percentagem = (a / m) * 100
        barra['value'] = min(percentagem, 100)
        if percentagem == 100:
            mensagem = f"Objetivo concluído! ({percentagem:.2f}%)"
        elif percentagem>100:
            p = percentagem-100

            mensagem = f"Objetivo ultrapassado!\n" \
                       f" Ultrapassou: ({p:.2f}%)"

        else:
            falta = m - a
            mensagem = (
                f"Progresso: {percentagem:.2f}%\n"
                f"Faltam {falta:.2f} €"
            )

        resultado.config(text=mensagem)

    except:
        resultado.config(text="Valores inválidos!")


def limpar():
    meta.set("")
    atual.set("")
    barra['value'] = 0
    resultado.config(text="")

Button(root, text="Mostrar",
       command=calcular,
       bg="#107db2", fg="white",
       font=('verdana', 12, 'bold')
).place(relx=0.15, rely=0.55, relwidth=0.25)

Button(root, text="Limpar",
       command=limpar,
       bg="#107db2", fg="white",
       font=('verdana', 12, 'bold')
).place(relx=0.45, rely=0.55, relwidth=0.25)

Button(root, text="Sair",
       command=root.destroy,
       bg="#107db2", fg="white",
       font=('verdana', 12, 'bold')
).place(relx=0.75, rely=0.55, relwidth=0.2)

root.mainloop()