package com.dmc.callcrm.ui

import android.Manifest
import android.content.Intent
import android.content.pm.PackageManager
import android.media.MediaRecorder
import android.os.Build
import android.os.Bundle
import android.widget.TextView
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import androidx.core.content.FileProvider
import androidx.lifecycle.lifecycleScope
import com.dmc.callcrm.ApiConfig
import com.dmc.callcrm.R
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import java.io.File

/**
 * Standalone mic test — records 5s using the EXACT same MediaRecorder setup
 * as CallMonitorService's call recording, but outside of a call. Lets you
 * share the result directly (WhatsApp/email/etc.) to compare against a real
 * call recording, to tell apart "our recording code is broken" from
 * "Android mutes the mic specifically during calls on this device."
 */
class TestMicActivity : AppCompatActivity() {

    private lateinit var statusText: TextView
    private var lastFile: File? = null

    private val micPermissionLauncher = registerForActivityResult(
        ActivityResultContracts.RequestPermission()
    ) { granted -> if (granted) doRecording() else statusText.text = "Microphone permission is needed for this test." }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_test_mic)
        statusText = findViewById(R.id.statusText)

        findViewById<TextView>(R.id.btnRecord).setOnClickListener {
            if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED) {
                doRecording()
            } else {
                micPermissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
            }
        }
        findViewById<TextView>(R.id.btnShare).setOnClickListener { shareLastRecording() }
    }

    private fun doRecording() {
        val btn = findViewById<TextView>(R.id.btnRecord)
        btn.isEnabled = false
        findViewById<TextView>(R.id.btnShare).visibility = android.view.View.GONE
        statusText.text = "Recording… talk now (5 seconds)"

        val dir = File(getExternalFilesDir(null), "callrec").apply { mkdirs() }
        val f = File(dir, "mictest_${System.currentTimeMillis()}.m4a")

        @Suppress("DEPRECATION")
        val r = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) MediaRecorder(this) else MediaRecorder()
        try {
            r.setAudioSource(MediaRecorder.AudioSource.MIC)
            r.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4)
            r.setAudioEncoder(MediaRecorder.AudioEncoder.AAC)
            r.setAudioSamplingRate(ApiConfig.MIC_SAMPLE_RATE)
            r.setAudioEncodingBitRate(ApiConfig.MIC_BITRATE)
            r.setOutputFile(f.absolutePath)
            r.prepare()
            r.start()
        } catch (e: Exception) {
            statusText.text = "Couldn't start recording: ${e.message}"
            btn.isEnabled = true
            return
        }

        lifecycleScope.launch {
            delay(5000)
            try { r.stop() } catch (e: Exception) {
                statusText.text = "Recording failed to stop cleanly: ${e.message}"
            }
            try { r.release() } catch (_: Exception) {}

            btn.isEnabled = true
            if (f.exists() && f.length() > 0) {
                lastFile = f
                statusText.text = "Done — ${f.length()} bytes. Tap below to share it."
                findViewById<TextView>(R.id.btnShare).visibility = android.view.View.VISIBLE
            } else {
                statusText.text = "No file was produced."
            }
        }
    }

    private fun shareLastRecording() {
        val f = lastFile ?: return
        val uri = FileProvider.getUriForFile(this, "$packageName.fileprovider", f)
        val intent = Intent(Intent.ACTION_SEND).apply {
            type = "audio/mp4"
            putExtra(Intent.EXTRA_STREAM, uri)
            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
        }
        try {
            startActivity(Intent.createChooser(intent, "Share mic test recording"))
        } catch (e: Exception) {
            Toast.makeText(this, "Couldn't open share sheet: ${e.message}", Toast.LENGTH_LONG).show()
        }
    }
}