/*
 * Copyright (c) 2022 Auxio Project
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
package org.oxycblt.auxio.playback.replaygain

import org.oxycblt.auxio.IntegerTable

/** Represents the current setting for ReplayGain. */
enum class ReplayGainMode {
    /** Apply the track gain, falling back to the album gain if the track gain is not found. */
    TRACK,

    /** Apply the album gain, falling back to the track gain if the album gain is not found. */
    ALBUM,

    /** Apply the album gain only when playing from an album, defaulting to track gain otherwise. */
    DYNAMIC;

    companion object {
        /** Convert an int [code] into an instance, or null if it isn't valid. */
        fun fromIntCode(code: Int): ReplayGainMode? {
            return when (code) {
                IntegerTable.REPLAY_GAIN_MODE_TRACK -> TRACK
                IntegerTable.REPLAY_GAIN_MODE_ALBUM -> ALBUM
                IntegerTable.REPLAY_GAIN_MODE_DYNAMIC -> DYNAMIC
                else -> null
            }
        }
    }
}

/** Represents the ReplayGain pre-amp values. */
data class ReplayGainPreAmp(
    /** The value to use when ReplayGain tags are present. */
    val with: Float,
    /** The value to use when ReplayGain tags are not present. */
    val without: Float
)
