import tkinter as tk
from tkinter import ttk, messagebox # Importar ttk para estilos e messagebox para avisos

def watts_para_cv(watts):

    return watts / 735.5

def cv_para_watts(cv):
    return cv * 735.5

def watts_para_hp(watts):

    return watts / 745.7

def hp_para_watts(hp):

    return hp * 745.7


current_conversion_mode = "watts_para_cv"

def perform_conversion():

    try:
        input_value = float(entry_input.get())
        result_value = 0.0
        result_unit = ""

        if current_conversion_mode == "watts_para_cv":
            result_value = watts_para_cv(input_value)
            result_unit = "CV"
            output_unit_label.config(text="CV:")
        elif current_conversion_mode == "cv_para_watts":
            result_value = cv_para_watts(input_value)
            result_unit = "Watts"
            output_unit_label.config(text="Watts:")
        elif current_conversion_mode == "watts_para_hp":
            result_value = watts_para_hp(input_value)
            result_unit = "HP"
            output_unit_label.config(text="HP:")
        elif current_conversion_mode == "hp_para_watts":
            result_value = hp_para_watts(input_value)
            result_unit = "Watts"
            output_unit_label.config(text="Watts:")

        label_result.config(text=f"{result_value:.3f} {result_unit}")

    except ValueError:
        messagebox.showerror("Erro de Entrada", "Por favor, insira um número válido.")
    except Exception as e:
        messagebox.showerror("Erro", f"Ocorreu um erro: {e}")

def set_conversion_mode(mode):
    global current_conversion_mode
    current_conversion_mode = mode
    perform_conversion()
root = tk.Tk()
root.title("Conversor de Potência")
root.geometry("450x300")
root.resizable(False, False)
root.config(bg="#2E4053")
style = ttk.Style()
style.theme_use("clam")

style.configure("TLabel",
                background="#2E4053",
                foreground="#EBF5FB",
                font=("Arial", 12))
style.configure("TEntry",
                font=("Arial", 12))
style.configure("TButton",
                background="#5DADE2",
                foreground="white",
                font=("Arial", 10, "bold"),
                padding=8)
style.map("TButton",
          background=[('active', '#3498DB')])
style.configure("TRadiobutton",
                background="#2E4053",
                foreground="#EBF5FB",
                font=("Arial", 10))

title_label = tk.Label(root, text="Conversor de Potência",
                       font=("Arial", 18, "bold"), bg="#2E4053", fg="#D6EAF8")
title_label.pack(pady=15)
input_frame = tk.Frame(root, bg="#2E4053")
input_frame.pack(pady=10)

input_unit_label = ttk.Label(input_frame, text="Valor:")
input_unit_label.pack(side=tk.LEFT, padx=5)

entry_input = ttk.Entry(input_frame, width=15)
entry_input.pack(side=tk.LEFT, padx=5)
entry_input.bind("<Return>", lambda event=None: perform_conversion())

# Botão de conversão
convert_button = ttk.Button(root, text="Converter", command=perform_conversion)
convert_button.pack(pady=10)

# Frame para o resultado
result_frame = tk.Frame(root, bg="#2E4053")
result_frame.pack(pady=10)

output_unit_label = ttk.Label(result_frame, text="CV:")
output_unit_label.pack(side=tk.LEFT, padx=5)

label_result = ttk.Label(result_frame, text="0.000 CV", font=("Arial", 14, "bold"))
label_result.pack(side=tk.LEFT, padx=5)

mode_frame = tk.Frame(root, bg="#2E4053")
mode_frame.pack(pady=10)
radio_var = tk.StringVar(value="watts_para_cv")
radio_cv = ttk.Radiobutton(mode_frame, text="Watts ↔ CV", variable=radio_var,
                           value="watts_para_cv", command=lambda: set_conversion_mode("watts_para_cv"))
radio_cv.pack(side=tk.LEFT, padx=10)

radio_hp = ttk.Radiobutton(mode_frame, text="Watts ↔ HP", variable=radio_var,
                           value="watts_para_hp", command=lambda: set_conversion_mode("watts_para_hp"))
radio_hp.pack(side=tk.LEFT, padx=10)

root.mainloop()