/*
 * 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.systemui.ambient.lowlight

import android.os.PowerManager
import com.android.systemui.ambient.lowlight.dagger.AmbientSuppressionModule
import com.android.systemui.lifecycle.ExclusiveActivatable
import javax.inject.Inject
import javax.inject.Named
import kotlinx.coroutines.awaitCancellation

/**
 * {@link AmbientSuppressionLowLightAction} is a {@link LowLightAction} implementation configurable
 * via dagger to suppress the ambient display via {@link PowerManager} during low-light.
 */
class AmbientSuppressionLowLightAction
@Inject
constructor(
    private val powerManager: PowerManager,
    @Named(AmbientSuppressionModule.AMBIENT_SUPPRESSION_SUPPRESSION_FLAGS) private val flags: Int,
) : ExclusiveActivatable() {
    private val suppressionToken: String = "AmbientSuppressionLowLightAction:" + flags

    override suspend fun onActivated(): Nothing {
        try {
            powerManager.suppressAmbientDisplay(suppressionToken, flags)
            awaitCancellation()
        } finally {
            powerManager.suppressAmbientDisplay(
                suppressionToken,
                PowerManager.FLAG_AMBIENT_SUPPRESSION_NONE,
            )
        }
    }
}