package com.peachpasswords.shared

import okhttp3.internal.publicsuffix.PublicSuffixDatabase

fun extractDomain(url: String): String? {
    return try {
        val normalized = if (url.startsWith("http")) url else "https://$url"
        val host = java.net.URL(normalized).host.lowercase()
        PublicSuffixDatabase.get().getEffectiveTldPlusOne(host)
    } catch (_: Exception) {
        null
    }
}

fun getDisplayDomain(url: String): String {
    return try {
        val normalized = if (url.startsWith("http")) url else "https://$url"
        java.net.URL(normalized).host
    } catch (_: Exception) {
        url
    }
}

/**
 * Browser parity with `shared/domain.ts::detectHomograph`: true when the host
 * contains non-ASCII characters or a punycode `xn--` label. This is warning-only;
 * matching/keying remains handled by [extractDomain].
 */
fun detectHomograph(url: String): Boolean {
    return try {
        val normalized = if (url.contains("://")) url else "https://$url"
        val host = java.net.URL(normalized).host
        host.any { it.code > 0x7F } || host.split('.').any { it.startsWith("xn--", ignoreCase = true) }
    } catch (_: Exception) {
        false
    }
}