package ru.officialdakari.fmd.receivers

import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.SharedPreferences
import android.net.Uri
import android.telephony.SmsManager
import android.telephony.SmsMessage
import android.util.Log
import ru.officialdakari.fmd.CommandHandler
import ru.officialdakari.fmd.LockActivity
import ru.officialdakari.fmd.RingActivity


class SmsReceiver: BroadcastReceiver() {
    private val preferences: SharedPreferences? = null

    var lockIntent: Intent? = null
    var ringIntent: Intent? = null

    fun initIntents(ctx: Context) {
        ringIntent = Intent(ctx, RingActivity::class.java).apply {
            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
            addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION)
            addFlags(Intent.FLAG_FROM_BACKGROUND)
        }
        lockIntent = Intent(ctx, LockActivity::class.java).apply {
            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
            addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION)
            addFlags(Intent.FLAG_FROM_BACKGROUND)
        }
    }

    override fun onReceive(context: Context, intent: Intent) {
        if (intent.getAction() == "android.provider.Telephony.SMS_RECEIVED") {
            if (lockIntent == null || ringIntent == null) {
                initIntents(context)
            }
            val bundle = intent.getExtras()
            var msgs: Array<SmsMessage?>? = null
            var msg_from: String?
            if (bundle != null) {
                try {
                    val pdus = bundle.get("pdus") as Array<Any?>?
                    msgs = kotlin.arrayOfNulls<SmsMessage>(pdus!!.size)
                    for (i in msgs.indices) {
                        msgs[i] = SmsMessage.createFromPdu(pdus[i] as ByteArray?)
                        msg_from = msgs[i]?.getOriginatingAddress()
                        val msgBody: String? = msgs[i]?.getMessageBody()
                        if (msg_from != null && msgBody != null) {
                            if (msgBody.startsWith("fma ")) onFmaCommand(context, msg_from, msgBody);
                        }
                    }
                } catch (e: Exception) {
                    Log.d("Exception caught FMD",e.stackTraceToString());
                }
            }
        }
    }



    private fun onFmaCommand(context: Context, msgFrom: String, msgBody: String) {
        Log.w("FMD", "SMS from $msgFrom: $msgBody")
        val args = msgBody.split(" ")
        if (!args[0].contentEquals("fma")) return;
        val handler = CommandHandler(context, lockIntent!!, ringIntent!!)
        val smsManager = SmsManager.getDefault()
        handler.handleCommand(msgBody, { repl ->
            if (repl.length != 0) {
                smsManager.sendTextMessage(msgFrom, null, repl, null, null)
            }
        })
    }
}