from PyQt5.QtWidgets import QDialog, QVBoxLayout, QLabel, QPushButton
from PyQt5.QtCore import Qt

from updates.version import get_version


class AboutDialog(QDialog):
    """Dialog that shows information about the application."""

    def __init__(self, language_manager=None, parent=None):
        super().__init__(parent)
        # Remove the standard "?" help button that appears on some platforms
        self.setWindowFlags(self.windowFlags() & ~Qt.WindowContextHelpButtonHint)
        self.language_manager = language_manager
        self._setup_ui()
        if self.language_manager:
            self.language_manager.language_changed.connect(self.update_texts)
            self.update_texts()

    def _setup_ui(self):
        self.setWindowTitle("About")
        layout = QVBoxLayout(self)

        self.info_label = QLabel()
        self.info_label.setAlignment(Qt.AlignCenter)
        self.info_label.setWordWrap(True)
        layout.addWidget(self.info_label)

        self.close_button = QPushButton("OK")
        self.close_button.clicked.connect(self.accept)
        layout.addWidget(self.close_button, alignment=Qt.AlignCenter)

    def update_texts(self):
        version_text = (
            self.language_manager.get_text("main.version", f"Version {get_version()}")
            if self.language_manager
            else f"Version {get_version()}"
        )
        lm = self.language_manager
        title = "Social Media Account Generator" if not lm else lm.get_text("main.title", "Social Media Account Generator")
        support = (
            lm.get_text(
                "about_dialog.support",
                "Für Support kontaktieren Sie uns unter: support@example.com",
            )
            if lm
            else "Für Support kontaktieren Sie uns unter: support@example.com"
        )
        license_text = (
            lm.get_text(
                "about_dialog.license",
                "Diese Software ist lizenzpflichtig und darf nur mit gültiger Lizenz verwendet werden.",
            )
            if lm
            else "Diese Software ist lizenzpflichtig und darf nur mit gültiger Lizenz verwendet werden."
        )
        lines = [
            f"<h1>{title}</h1>",
            f"<p>{version_text}</p>",
            "<p>© 2025 Chimaira</p>",
            f"<p>{support}</p>",
            f"<p>{license_text}</p>",
        ]
        self.info_label.setText("".join(lines))
        if lm:
            self.setWindowTitle(lm.get_text("menu.about", "Über"))
            self.close_button.setText(lm.get_text("buttons.ok", "OK"))