Android 14+: How to monitor permissions on runtime?

I am searching for broadcast receivers which will be fired when one of those permissions has changed:

1. Battery optimization
2. Coarse & Fine Location
3. Post Notifications
4. Read Phone State
5. Background Location
6. Pause app activity when unused
7. Nearby wifi devices

I just ask for the code of what to register and what to unregister.

The receivers may run in an activity or in a service.

Code from chatgpt that didn't work 100%:

@file:Suppress("DEPRECATION")
package com.mobeetest.worker.utilities.permissions

import android.app.AppOpsManager
import android.content.*
import android.location.LocationManager
import android.util.Log

class RuntimePermissionWatcher(
    private val context: Context,
    // ΝΕΟ: predicate που μας λέει αν ΠΡΕΠΕΙ να “ακούμε” ένα permission τώρα
    private val shouldWatch: (String) -> Boolean,
    private val onMaybeChanged: (String) -> Unit
) {
    private val tag = "RuntimePermissionWatcher"
    private val appOps = context.getSystemService(AppOpsManager::class.java)

    // helper για map από AppOp -> permission name που χρησιμοποιείς στα steps
    private fun opToPermissionName(op: String?): String? = when (op) {
        AppOpsManager.OPSTR_FINE_LOCATION,
        AppOpsManager.OPSTR_COARSE_LOCATION -> "Location"
        AppOpsManager.OPSTR_READ_PHONE_STATE -> "Phone"
        // Αν θες να ακούς και notifications μέσω AppOps (όπου υποστηρίζεται):
        // AppOpsManager.OPSTR_POST_NOTIFICATION -> "Notifications"
        else -> null
    }

    private val opChangedListener = AppOpsManager.OnOpChangedListener { op, pkg ->
        // φιλτράρουμε by pkg και by permission status
        if (pkg != context.packageName) return@OnOpChangedListener
        val name = opToPermissionName(op) ?: return@OnOpChangedListener
        if (!shouldWatch(name)) return@OnOpChangedListener
        onMaybeChanged(name)
    }

    private val locationReceiver = object : BroadcastReceiver() {
        override fun onReceive(ctx: Context?, intent: Intent?) {
            // Events: MODE_CHANGED / PROVIDERS_CHANGED -> αφορούν Location
            if (!shouldWatch("Location")) return
            onMaybeChanged("Location")
        }
    }

    private val powerReceiver = object : BroadcastReceiver() {
        override fun onReceive(ctx: Context?, intent: Intent?) {
            // Δεν σου λέει whitelist per-app, αλλά είναι καλό hint για recheck.
            if (!shouldWatch("Battery")) return
            onMaybeChanged("Battery")
        }
    }

    private val powerFilter = IntentFilter().apply {
        addAction(android.os.PowerManager.ACTION_POWER_SAVE_MODE_CHANGED)
        addAction(android.os.PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED)
    }

    private val locationFilter = IntentFilter().apply {
        addAction(LocationManager.MODE_CHANGED_ACTION)
        addAction(LocationManager.PROVIDERS_CHANGED_ACTION)
    }

    fun start() {
        try {
            context.registerReceiver(powerReceiver, powerFilter)



            appOps.startWatchingMode(
                AppOpsManager.OPSTR_FINE_LOCATION, context.packageName, opChangedListener
            )
            appOps.startWatchingMode(
                AppOpsManager.OPSTR_COARSE_LOCATION, context.packageName, opChangedListener
            )
            appOps.startWatchingMode(
                AppOpsManager.OPSTR_READ_PHONE_STATE, context.packageName, opChangedListener
            )
            // Προαιρετικά, αν θέλεις και Notifications όπου υποστηρίζεται από OEM/SDK:
            // appOps.startWatchingMode(
            //     AppOpsManager.OPSTR_POST_NOTIFICATION, context.packageName, opChangedListener
            // )
        } catch (t: Throwable) {
            Log.w(tag, "startWatchingMode failed: ${t.message}")
        }

        context.registerReceiver(locationReceiver, locationFilter)
    }

    fun stop() {
        runCatching { appOps.stopWatchingMode(opChangedListener) }
        runCatching { context.unregisterReceiver(locationReceiver) }
        runCatching { context.unregisterReceiver(powerReceiver) }

    }
}