package com.vanta.smsgateway

import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.provider.Telephony
import kotlinx.coroutines.*

/**
 * Receives incoming SMS when app is set as default SMS app.
 * Forwards each message to cPanel /inbox endpoint.
 * Does NOT show any UI — Google Messages handles display once restored as default.
 */
class SmsReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {
        if (intent.action != Telephony.Sms.Intents.SMS_DELIVER_ACTION &&
            intent.action != Telephony.Sms.Intents.SMS_RECEIVED_ACTION) return

        val messages = Telephony.Sms.Intents.getMessagesFromIntent(intent)
        if (messages.isNullOrEmpty()) return

        // Group multi-part messages by originating address
        val grouped = mutableMapOf<String, StringBuilder>()
        for (msg in messages) {
            val from = msg.originatingAddress ?: continue
            grouped.getOrPut(from) { StringBuilder() }.append(msg.messageBody)
        }

        val prefs  = context.getSharedPreferences(SmsService.PREF_NAME, Context.MODE_PRIVATE)
        val url    = prefs.getString(SmsService.PREF_URL, "") ?: ""
        val apiKey = prefs.getString(SmsService.PREF_KEY, "") ?: ""
        if (url.isEmpty() || apiKey.isEmpty()) return

        val client = ApiClient(url, apiKey)
        CoroutineScope(Dispatchers.IO).launch {
            grouped.forEach { (from, body) ->
                client.reportIncoming(from, body.toString())
            }
        }
    }
}