"""
App Selection Frame

UI component for selecting an app registration.
"""

import customtkinter as ctk
from typing import List, Dict, Callable, Optional
from ui.components import UnifiedDropdown


class AppSelectionFrame(ctk.CTkFrame):
    """Frame for app registration selection."""

    def __init__(self, parent, on_app_selected: Callable = None):
        """
        Initialize the app selection frame.

        Args:
            parent: Parent widget
            on_app_selected: Callback function when an app is selected
        """
        super().__init__(parent)

        self.on_app_selected = on_app_selected

        # Configure frame
        self.configure(corner_radius=10, border_width=2)

        # Create unified dropdown
        self.dropdown = UnifiedDropdown(
            self,
            title="App Registration Selection",
            on_selection_changed=self._on_app_selected,
            show_count=True,
            display_key='display_name',
            max_dropdown_height=400
        )
        self.dropdown.grid(row=0, column=0, sticky="ew")
        self.dropdown.set_placeholder("Please connect to Azure first")

        # Configure grid
        self.grid_columnconfigure(0, weight=1)

    def set_apps(self, apps: List[Dict[str, str]]):
        """
        Set the list of applications.

        Args:
            apps: List of app dictionaries with 'id', 'app_id', and 'display_name'
        """
        self.dropdown.set_items(apps)

    def _on_app_selected(self, app: Dict):
        """
        Handle app selection.

        Args:
            app: The selected app dictionary
        """
        if self.on_app_selected:
            self.on_app_selected(app)

    def get_selected_app(self) -> Optional[Dict[str, str]]:
        """
        Get the currently selected app.

        Returns:
            Dict: Selected app or None
        """
        return self.dropdown.get_selected()

    def set_enabled(self, enabled: bool):
        """
        Enable or disable the frame.

        Args:
            enabled: Whether to enable the frame
        """
        self.dropdown.set_enabled(enabled)

    def set_loading(self, loading: bool):
        """
        Set loading state.

        Args:
            loading: Whether currently loading
        """
        self.dropdown.set_loading(loading)