/*
 * Copyright (C) 2023 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.
 */

@file:JvmName("Extensions")

package android.tools.device.traces

import android.os.SystemClock
import android.tools.common.SECOND_AS_NANOSECONDS
import android.tools.common.Timestamp
import android.tools.common.Timestamps
import androidx.test.platform.app.InstrumentationRegistry
import java.io.File
import java.time.Instant

/**
 * Gets the default flicker output dir. By default, the data is stored in /sdcard/flicker instead of
 * using the app's internal data directory to be accessible by other components (i.e. FilePuller)
 */
fun getDefaultFlickerOutputDir() =
    InstrumentationRegistry.getInstrumentation().targetContext.filesDir

/** @return the current timestamp as [Timestamp] */
fun now(): Timestamp {
    val now = Instant.now()
    return Timestamps.from(
        elapsedNanos = SystemClock.elapsedRealtimeNanos(),
        systemUptimeNanos = SystemClock.uptimeNanos(),
        unixNanos = now.epochSecond * SECOND_AS_NANOSECONDS + now.nano
    )
}

fun File.deleteIfExists(): Boolean =
    if (this.exists()) {
        this.delete()
    } else {
        false
    }