import flet as ft
import designer as ds
from info import AuthService


class LoginView(ft.View):
    def __init__(self, page: ft.Page):
        self._auth = AuthService(page)
        self.pageS = page

        self._username = ds.CastomTextField_input(
            label="Логин",
            hint_text="Введите логин...",
            prefix_icon=ft.Icons.PERSON,
        )

        self._password = ds.CastomTextField_input(
            label="Пароль",
            hint_text="Введите пароль...",
            prefix_icon=ft.Icons.LOCK,
            password=True,
            can_reveal_password=True,
        )

        self._error = ft.Text("", color=ft.Colors.RED_400, size=ds.s(14), visible=False)

        self._btn = ds.CastomButton(
            text="Войти",
            on_click=lambda e: page.run_task(self._do_login),
        )

        self._reg_link = ft.TextButton(
            content=ft.Text("Нет аккаунта? Зарегистрироваться", color=ds.clolors.ferst, size=ds.s(14)),
            on_click=self.open_dialog,
        )

        super().__init__(
            route="/login",
            bgcolor=ds.clolors.background,
            horizontal_alignment=ft.CrossAxisAlignment.STRETCH,
            vertical_alignment=ft.MainAxisAlignment.CENTER,
            padding=ft.padding.symmetric(horizontal=ds.s(16), vertical=ds.s(24)),
            scroll=ft.ScrollMode.AUTO,
        )
        self.controls = [
            ft.Text("ЦОПП", color=ds.clolors.ferst, size=ds.s(30), weight=ft.FontWeight.BOLD,
                    text_align=ft.TextAlign.CENTER),
            ft.Container(height=ds.s(8)),
            ft.Text("Это проект цопп по проведению иследовательских тестирований", color=ds.clolors.ferst, size=ds.s(16),
                    text_align=ft.TextAlign.CENTER),
            ft.Container(height=ds.s(24)),
            ft.Container(
                padding=ft.padding.all(ds.s(24)),
                bgcolor=ds.clolors.laer3,
                border_radius=ds.s(16),
                alignment=ft.Alignment.CENTER,
                content=ft.Column(
                    spacing=ds.s(16),
                    controls=[
                        self._username,
                        self._password,
                        self._error,
                        self._btn,
                        self._reg_link,
                    ],
                ),
            ),
        ]
    
    def open_dialog(self, e):
        self.dialog = ds.AlterDiaalogApproval(
            on_accept=lambda: self.pageS.run_task(self.pageS.push_route, "/reg")
        )
        self.dialog.open = True
        self.pageS.overlay.append(self.dialog)
        self.pageS.update()
        
    
    async def _do_login(self):
        username = self._username.value.strip()
        password = self._password.value

        if not username or not password:
            self._show_error("Заполните логин и пароль")
            return

        self._btn.disabled = True
        self._error.visible = False
        self.update()

        error = await self._auth.login(username, password)

        if error:
            self._btn.disabled = False
            self._show_error(error)
        else:
            # Успешный вход — переходим на страницу пользователя
            url_key = self.page.session.store.get("url_key")
            await self.page.push_route(f"/user/{url_key}")

    def _show_error(self, message: str):
        self._error.value = message
        self._error.visible = True
        self.update()