package com.isp.bkashautomation

import android.Manifest
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Bundle
import android.provider.Settings
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat

class MainActivity : AppCompatActivity() {

    private val SMS_PERMISSION_CODE = 101

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val editServerUrl = findViewById<EditText>(R.id.editServerUrl)
        val editSecretKey = findViewById<EditText>(R.id.editSecretKey)
        val btnSave = findViewById<Button>(R.id.btnSaveConfig)
        val btnGrantNotification = findViewById<Button>(R.id.btnGrantNotification)
        val tvStatus = findViewById<TextView>(R.id.tvServiceStatus)

        val prefs = getSharedPreferences("isp_bkash_prefs", Context.MODE_PRIVATE)
        editServerUrl.setText(prefs.getString("server_url", "http://192.168.1.100:3000/api/bkash-sim/webhook"))
        editSecretKey.setText(prefs.getString("secret_key", "android_companion_sim_secret_key_2026"))

        btnSave.setOnClickListener {
            val url = editServerUrl.text.toString().trim()
            val secret = editSecretKey.text.toString().trim()

            prefs.edit()
                .putString("server_url", url)
                .putString("secret_key", secret)
                .apply()

            Toast.makeText(this, "Configuration Saved!", Toast.LENGTH_SHORT).show()
        }

        btnGrantNotification.setOnClickListener {
            // Open Android Notification Listener settings
            startActivity(Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS))
        }

        checkAndRequestPermissions()
        tvStatus.text = "🟢 Background Service Active (Listening for bKash SMS & Alerts)"
    }

    private fun checkAndRequestPermissions() {
        val permissions = arrayOf(
            Manifest.permission.RECEIVE_SMS,
            Manifest.permission.READ_SMS
        )

        val needed = permissions.filter {
            ContextCompat.checkSelfPermission(this, it) != PackageManager.PERMISSION_GRANTED
        }

        if (needed.isNotEmpty()) {
            ActivityCompat.requestPermissions(this, needed.toTypedArray(), SMS_PERMISSION_CODE)
        }
    }
}