package com.bitcointxoko.gudariwallet.util

import android.content.Context
import android.content.Intent
import android.net.Uri

object IntentUtils {

    private val PAYMENT_SCHEMES = setOf(
        "lightning", "bitcoin", "lnurlp", "lnurlw", "lnurlc", "lnurl"
    )

    fun shareText(context:
                  Context, text: String, chooserTitle: String) {
            val intent = Intent(Intent.ACTION_SEND).apply {
                    type = "text/plain"
                    putExtra(Intent.EXTRA_TEXT, text)
                }
            context.startActivity(Intent.createChooser(intent, chooserTitle))
        }

    /**
     * Returns a raw payment URI string if the intent carries one, else null.
     *
     * Handles:
     *  - ACTION_VIEW with a recognised scheme  (BTCPay "Pay in wallet", browser links)
     *  - ACTION_SEND with text/plain           (share sheet from another app)
     */
    fun extractPaymentUri(intent: Intent?): String? {
        if (intent == null) return null

        // Case 1: direct URI intent (most common — BTCPay, wallet links)
        if (intent.action == Intent.ACTION_VIEW) {
            val uri: Uri? = intent.data
            if (uri != null && uri.scheme?.lowercase() in PAYMENT_SCHEMES) {
                return uri.toString()
            }
        }

        // Case 2: share-sheet text (e.g. another app shares a BOLT-11 string)
        if (intent.action == Intent.ACTION_SEND &&
            intent.type == "text/plain") {
            val text = intent.getStringExtra(Intent.EXTRA_TEXT)?.trim()
            if (!text.isNullOrBlank()) return text
        }

        return null
    }
}