#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# Fenrir TTY screen reader
# By Chrys, Storm Dragon, and contributers.

from fenrirscreenreader.core import debug

class inputDriver():
    def __init__(self):
        self._initialized = False
    def initialize(self, environment):
        self.env = environment
        self.env['runtime']['inputManager'].setShortcutType('KEY')
        self._isInitialized = True
    def shutdown(self):
        if self._initialized:
            self.removeAllDevices()
        self._isInitialized = False
    def getInputEvent(self):
        time.sleep(0.1)
        return None
    def clearEventBuffer(self):
        if not self._initialized:
            return
        del self.env['input']['eventBuffer'][:]
    def updateInputDevices(self, newDevices = None, init = False):
        if not self._initialized:
            return
    def getLedState(self, led = 0):
        if not self._initialized:
            return False
        return False
    def toggleLedState(self, led = 0):
        if not self._initialized:
            return
    def grabAllDevices(self):
        if not self._initialized:
            return True
        return True
    def ungrabAllDevices(self):
        if not self._initialized:
            return True
        return True

    def forceUngrab(self):
        """Emergency method to release grabbed devices in case of failure"""
        if not self._initialized:
            return True
        try:
            # Try standard ungrab first
            return self.ungrabAllDevices()
        except Exception as e:
            # Just log the failure and inform the user
            if hasattr(self, 'env') and 'runtime' in self.env and 'debug' in self.env['runtime']:
                self.env['runtime']['debug'].writeDebugOut(
                    f"Emergency device release failed: {str(e)}", 
                    debug.debugLevel.ERROR
                )
            else:
                print(f"Emergency device release failed: {str(e)}")
        return False

    def hasIDevices(self):
        if not self._initialized:
            return False
        return True
    def removeAllDevices(self):
        if not self._initialized:
            return
    def sendKey(self):
        if not self._initialized:
            return
    def __del__(self):
        if not self._initialized:
            return
        try:
            self.removeAllDevices()
        except Exception as e:
            print(f'inputDriver __del__: Error removing devices: {str(e)}')