Bug 40028: Define bootstrapping events and Quick Start

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

package org.mozilla.fenix.tor.bootstrap

import android.content.Context

import android.content.SharedPreferences

import android.os.StrictMode

import androidx.annotation.VisibleForTesting

import mozilla.components.support.ktx.android.content.PreferencesHolder

import mozilla.components.support.ktx.android.content.booleanPreference

import org.mozilla.fenix.ext.application

import org.mozilla.fenix.ext.components

class TorQuickStart(val context: Context) : PreferencesHolder {

    override val preferences: SharedPreferences =

        context.components.strictMode.resetAfter(StrictMode.allowThreadDiskReads()) {

            context.getSharedPreferences(

                PREF_NAME_TOR_BOOTSTRAP_KEY,

                Context.MODE_PRIVATE

            )

        }

    private var torQuickStart by booleanPreference(TOR_QUICK_START, default = false)

    fun quickStartTor() =

        context.components.strictMode.resetAfter(StrictMode.allowThreadDiskReads()) { torQuickStart }

    fun enableQuickStartTor() {

        torQuickStart = true

    }

    fun disableQuickStartTor() {

        torQuickStart = false

    }

    fun setQuickStartTor(enabled: Boolean) = if (enabled) {

        enableQuickStartTor()

    } else {

        disableQuickStartTor()

    }

    companion object {

        /**

         * Name of the shared preferences file.

         */

        private const val PREF_NAME_TOR_BOOTSTRAP_KEY = "tor.bootstrap"

        /**

         * Key for [quickStartTor].

         */

        @VisibleForTesting

        internal const val TOR_QUICK_START = "tor.bootstrap.quick_start_enabled"

    }

}