added missing classes

/*

 * Copyright (C) 2017 Moez Bhatti <moez.bhatti@gmail.com>

 *

 * This file is part of QKSMS.

 *

 * QKSMS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * QKSMS is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with QKSMS.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.moez.QKSMS.manager

import io.reactivex.Observable

interface RatingManager {

    val shouldShowRating: Observable<Boolean>

    /**

     * Whether or not we should show the rating UI should depend on the number of sessions

     */

    fun addSession()

    fun rate()

    fun dismiss()

}

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/*

 * Copyright (C) 2017 Moez Bhatti <moez.bhatti@gmail.com>

 *

 * This file is part of QKSMS.

 *

 * QKSMS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * QKSMS is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with QKSMS.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.moez.QKSMS.mapper

import com.f2prateek.rx.preferences2.RxSharedPreferences

import com.moez.QKSMS.manager.AnalyticsManager

import com.moez.QKSMS.manager.RatingManager

import io.reactivex.rxkotlin.Observables

import javax.inject.Inject

class RatingManagerImpl @Inject constructor(

        rxPrefs: RxSharedPreferences,

        private val analyticsManager: AnalyticsManager

) : RatingManager {

    companion object {

        private const val RATING_THRESHOLD = 10

    }

    private val sessions = rxPrefs.getInteger("sessions", 0)

    private val rated = rxPrefs.getBoolean("rated", false)

    private val dismissed = rxPrefs.getBoolean("dismissed", false)

    override val shouldShowRating = Observables.combineLatest(

            sessions.asObservable(),

            rated.asObservable(),

            dismissed.asObservable()

    ) { sessions, rated, dismissed ->

        sessions > RATING_THRESHOLD && !rated && !dismissed

    }

    override fun addSession() {

        sessions.set(sessions.get() + 1)

    }

    override fun rate() {

        analyticsManager.track("Clicked Rate")

        rated.set(true)

    }

    override fun dismiss() {

        analyticsManager.track("Clicked Rate (Dismiss)")

        dismissed.set(true)

    }

}

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