/*
 * Copyright (C) 2025 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings.system

import android.app.settings.SettingsEnums
import android.content.Context
import android.os.UserManager
import androidx.fragment.app.Fragment
import com.android.settings.R
import com.android.settings.Settings.ResetDashboardActivity
import com.android.settings.core.PreferenceScreenMixin
import com.android.settings.factory_reset.Flags as FactoryResetFlags
import com.android.settings.flags.Flags
import com.android.settings.restriction.UserRestrictions
import com.android.settings.utils.makeLaunchIntent
import com.android.settingslib.RestrictedPreference
import com.android.settingslib.datastore.HandlerExecutor
import com.android.settingslib.datastore.KeyedObserver
import com.android.settingslib.metadata.PreferenceAvailabilityProvider
import com.android.settingslib.metadata.PreferenceLifecycleContext
import com.android.settingslib.metadata.PreferenceLifecycleProvider
import com.android.settingslib.metadata.PreferenceMetadata
import com.android.settingslib.metadata.ProvidePreferenceScreen
import com.android.settingslib.metadata.preferenceHierarchy
import kotlinx.coroutines.CoroutineScope

// LINT.IfChange
@ProvidePreferenceScreen(ResetDashboardScreen.KEY)
open class ResetDashboardScreen :
    PreferenceScreenMixin, PreferenceAvailabilityProvider, PreferenceLifecycleProvider {
    override val key: String
        get() = KEY

    override val title: Int
        get() = R.string.reset_dashboard_title

    override val icon: Int
        get() = R.drawable.ic_restore

    override val highlightMenuKey: Int
        get() = R.string.menu_key_system

    override fun getMetricsCategory() = SettingsEnums.RESET_DASHBOARD

    override fun isFlagEnabled(context: Context) = Flags.deeplinkSystem25q4()

    override fun hasCompleteHierarchy() = false

    override fun fragmentClass(): Class<out Fragment>? = ResetDashboardFragment::class.java

    override fun isAvailable(context: Context) =
        context.resources.getBoolean(R.bool.config_show_reset_dashboard)

    override fun getLaunchIntent(context: Context, metadata: PreferenceMetadata?) =
        makeLaunchIntent(context, ResetDashboardActivity::class.java, metadata?.key)

    override fun getPreferenceHierarchy(context: Context, coroutineScope: CoroutineScope) =
        preferenceHierarchy(context) {}

    private var factoryResetRestrictionObserver: KeyedObserver<String>? = null

    override fun onCreate(context: PreferenceLifecycleContext) {
        super.onCreate(context)
        if (!FactoryResetFlags.fixFactoryResetPreferenceOnRestrictionChange()) return
        val restrictedPreference: RestrictedPreference =
            context.findPreference(FACTORY_RESET_KEY) ?: return
        factoryResetRestrictionObserver = KeyedObserver { _, _ ->
            restrictedPreference.checkRestrictionAndSetDisabled(
                UserManager.DISALLOW_FACTORY_RESET
            )
            context.notifyPreferenceChange(FACTORY_RESET_KEY)
        }
        val userRestrictions = UserRestrictions.get(context)
        userRestrictions.addObserver(
            UserManager.DISALLOW_FACTORY_RESET,
            factoryResetRestrictionObserver!!,
            HandlerExecutor.main,
        )
    }

    override fun onDestroy(context: PreferenceLifecycleContext) {
        super.onDestroy(context)
        if (FactoryResetFlags.fixFactoryResetPreferenceOnRestrictionChange()) {
            if (factoryResetRestrictionObserver != null) {
                val userRestrictions = UserRestrictions.get(context)
                userRestrictions.removeObserver(
                    UserManager.DISALLOW_FACTORY_RESET,
                    factoryResetRestrictionObserver!!,
                )
                factoryResetRestrictionObserver = null
            }
        }
    }

    companion object {
        const val KEY = "reset_dashboard"
        const val FACTORY_RESET_KEY = "factory_reset"
    }
}
// LINT.ThenChange(
//     ResetDashboardFragment.java,
//     ResetPreferenceController.java,
// )