from PyQt5.QtWidgets import QDialog, QVBoxLayout, QLabel, QPushButton
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPixmap, QIcon
import os

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.theme_manager = None
        
        # Try to get theme manager from parent (MainWindow)
        if parent and hasattr(parent, 'theme_manager'):
            self.theme_manager = parent.theme_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")
        # Dialog-Größe festlegen
        self.setFixedSize(550, 450)  # Fixed size for consistent appearance
        
        layout = QVBoxLayout(self)
        layout.setContentsMargins(20, 20, 40, 40)  # Less margin on top/left for logo
        layout.setSpacing(25)

        # Add logo in top-left corner
        logo_label = QLabel()
        logo_label.setAlignment(Qt.AlignLeft)  # Align left instead of center
        
        # Get the theme-aware logo path
        if self.theme_manager:
            # Use theme manager to get correct logo based on current theme
            logo_path = self.theme_manager.get_icon_path("intelsight-logo")
        else:
            # Fallback to light logo if no theme manager
            current_dir = os.path.dirname(os.path.abspath(__file__))
            parent_dir = os.path.dirname(current_dir)
            logo_path = os.path.join(parent_dir, "resources", "icons", "intelsight-logo.svg")
        
        if os.path.exists(logo_path):
            # Load logo and display it at a smaller size for corner placement
            logo_pixmap = QPixmap(logo_path)
            # Scale the logo smaller for top-left corner
            scaled_pixmap = logo_pixmap.scaled(
                200, 60,  # Smaller size for corner placement
                Qt.KeepAspectRatio,
                Qt.SmoothTransformation
            )
            logo_label.setPixmap(scaled_pixmap)
            logo_label.setFixedSize(scaled_pixmap.size())
        else:
            # Fallback if logo not found
            logo_label.setText("IntelSight")
            logo_label.setStyleSheet("font-size: 18px; font-weight: bold;")
        
        # Logo in top-left corner
        layout.addWidget(logo_label, 0, Qt.AlignLeft | Qt.AlignTop)

        # Add some space after logo
        layout.addSpacing(20)
        
        self.info_label = QLabel()
        self.info_label.setAlignment(Qt.AlignCenter)
        self.info_label.setWordWrap(True)
        self.info_label.setMaximumWidth(450)  # Maximale Breite für bessere Lesbarkeit
        layout.addWidget(self.info_label, 1, Qt.AlignCenter)  # Use stretch factor 1

        # Spacer für bessere vertikale Verteilung
        layout.addStretch()

        self.close_button = QPushButton("OK")
        self.close_button.clicked.connect(self.accept)
        self.close_button.setFixedWidth(100)  # Feste Breite für Button
        layout.addWidget(self.close_button, 0, 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 = "AccountForger" if not lm else lm.get_text("main.title", "AccountForger")
        support = (
            lm.get_text(
                "about_dialog.support",
                "Für Support kontaktieren Sie uns unter: support@intelsight.de",
            )
            if lm
            else "Für Support kontaktieren Sie uns unter: support@intelsight.de"
        )
        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"<h2>{title}</h2>",
            f"<p>{version_text}</p>",
            "<p>© 2025 IntelSight UG (haftungsbeschränkt)</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"))