"""
The YouTube account indicator
=============================

SageTube can use browser cookies to reach a signed-in YouTube: the account
feed, age-restricted and members-only videos, and premium formats. All of that
worked -- but the only way to switch it on was Downloads tab -> Custom Options
-> the "Login with Cookies" tab, and Downloads is one tab among five. The three
features that need it (the Feed's account mode, Search, Browse) had no route to
it at all, and `show_cookie_login_dialog()` existed with no caller anywhere in
the codebase.

So this is a button in the tab bar's corner, visible from every tab, that says
whether cookies are active and opens the existing dialog. Nothing about the
cookie handling itself changes; it just became findable.
"""

from typing import Optional

from PySide6.QtCore import Qt, Signal
from PySide6.QtWidgets import QPushButton, QWidget

from . import ytsage_icons as icons
from . import ytsage_theme as theme
from ..utils.ytsage_config_manager import ConfigManager
from ..utils.ytsage_localization import _


class AccountStatusButton(QPushButton):
    """Shows the cookie state and opens the login dialog when pressed."""

    loginRequested = Signal()

    def __init__(self, parent: Optional[QWidget] = None) -> None:
        super().__init__(parent)
        self.setObjectName("accountStatusButton")
        self.setCursor(Qt.CursorShape.PointingHandCursor)
        # Not a call to action -- it sits in the chrome, so it should not
        # compete with the accent-coloured buttons in the pages.
        self.setStyleSheet(
            f"""
            QPushButton#accountStatusButton {{
                background-color: transparent;
                color: {theme.TEXT_MUTED};
                border: 1px solid {theme.BORDER};
                border-radius: 4px;
                padding: 5px 12px;
                margin: 4px 8px 4px 4px;
                font-weight: normal;
            }}
            QPushButton#accountStatusButton:hover {{
                color: {theme.TEXT};
                background-color: {theme.SURFACE_HOVER};
                border-color: {theme.BORDER_STRONG};
            }}
            QPushButton#accountStatusButton:pressed {{
                background-color: {theme.BORDER};
            }}
            """
        )
        self.clicked.connect(self.loginRequested)
        self.refresh()

    def refresh(self) -> None:
        """Re-read the cookie config and restate what it says."""
        active = bool(ConfigManager.get("cookie_active"))
        if not active:
            self.setIcon(icons.icon("user", theme.TEXT_MUTED))
            self.setText(_("account.signed_out"))
            self.setToolTip(_("account.signed_out_tooltip"))
            return

        if (ConfigManager.get("cookie_source") or "browser") == "file":
            source = _("account.source_file")
        else:
            browser = ConfigManager.get("cookie_browser") or "?"
            profile = ConfigManager.get("cookie_browser_profile")
            source = f"{browser}:{profile}" if profile else str(browser)

        self.setIcon(icons.icon("user-check", theme.TEXT))
        self.setText(_("account.signed_in", source=source))
        self.setToolTip(_("account.signed_in_tooltip", source=source))