librepods/android/app/src/main/java/me/kavishdevar/aln/MediaController.kt

package me.kavishdevar.aln

import android.media.AudioManager
import android.util.Log
import android.view.KeyEvent

object MediaController {
    private var initialVolume: Int? = null  // Nullable to track the unset state
    private lateinit var audioManager: AudioManager  // Declare AudioManager

    // Initialize the singleton with the AudioManager instance
    fun initialize(audioManager: AudioManager) {
        this.audioManager = audioManager
    }

    @Synchronized
    fun sendPause() {
        if (audioManager.isMusicActive) {
            audioManager.dispatchMediaKeyEvent(KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PAUSE))
            audioManager.dispatchMediaKeyEvent(KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PAUSE))
        }
    }

    @Synchronized
    fun sendPlay() {
        if (!audioManager.isMusicActive) {
            audioManager.dispatchMediaKeyEvent(KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MEDIA_PLAY))
            audioManager.dispatchMediaKeyEvent(KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_MEDIA_PLAY))
        }
    }

    @Synchronized
    fun startSpeaking() {
        Log.d("MediaController", "Starting speaking")
        if (initialVolume == null) {
            initialVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC)
            Log.d("MediaController", "Initial Volume Set: $initialVolume")
            audioManager.setStreamVolume(
                AudioManager.STREAM_MUSIC,
                1,  // Set to a lower volume when speaking starts
                0
            )
        }
        Log.d("MediaController", "Initial Volume: $initialVolume")
    }

    @Synchronized
    fun stopSpeaking() {
        Log.d("MediaController", "Stopping speaking, initialVolume: $initialVolume")
        initialVolume?.let { volume ->
            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, volume, 0)
            initialVolume = null  // Reset to null after restoring the volume
        }
    }
}