# modules/ui/views/login.py
import gradio as gr
from ...auth.auth import authenticate_user

class LoginView:
    def __init__(self):
        with gr.Blocks() as self.view:
            with gr.Column():
                gr.Markdown("# Iniciar Sesión")
                self.username = gr.Textbox(label="Usuario")
                self.password = gr.Textbox(
                    label="Contraseña",
                    type="password"
                )
                self.role = gr.State()
                self.message = gr.Markdown()
                
                with gr.Row():
                    self.back_button = gr.Button("Volver")
                    self.login_button = gr.Button(
                        "Iniciar Sesión",
                        variant="primary"
                    )

            def handle_login(username, password):
                success, role = authenticate_user(username, password)
                if success:
                    self.role.value = role
                    return username, role, ""
                return None, None, "Credenciales incorrectas"

            self.login_button.click(
                fn=handle_login,
                inputs=[self.username, self.password],
                outputs=[self.username, self.role, self.message]
            )

    @property
    def submit(self):
        return self.login_button.click

def create_login_view():
    return LoginView().view