Files
vpnhotspotmod/mobile/src/main/java/be/mygod/vpnhotspot/util/ConstantLookup.kt
2022-07-10 17:26:59 -04:00

58 lines
2.2 KiB
Kotlin

package be.mygod.vpnhotspot.util
import android.os.Build
import androidx.collection.LongSparseArray
import androidx.collection.SparseArrayCompat
import be.mygod.vpnhotspot.App.Companion.app
import be.mygod.vpnhotspot.R
import timber.log.Timber
class ConstantLookup(private val prefix: String, private val lookup29: Array<out String?>,
private val clazz: () -> Class<*>) {
private val lookup by lazy {
SparseArrayCompat<String>().apply {
for (field in clazz().declaredFields) try {
if (field?.type == Int::class.java && field.name.startsWith(prefix)) put(field.getInt(null), field.name)
} catch (e: Exception) {
Timber.w(e)
}
}
}
operator fun invoke(reason: Int, trimPrefix: Boolean = false): String {
if (Build.VERSION.SDK_INT >= 30) try {
lookup.get(reason)?.let { return if (trimPrefix) it.substring(prefix.length) else it }
} catch (e: ReflectiveOperationException) {
Timber.w(e)
}
return lookup29.getOrNull(reason)?.let { if (trimPrefix) it else prefix + it }
?: app.getString(R.string.failure_reason_unknown, reason)
}
}
@Suppress("FunctionName")
fun ConstantLookup(prefix: String, vararg lookup29: String?, clazz: () -> Class<*>) =
ConstantLookup(prefix, lookup29, clazz)
@Suppress("FunctionName")
inline fun <reified T> ConstantLookup(prefix: String, vararg lookup29: String?) =
ConstantLookup(prefix, lookup29) { T::class.java }
class LongConstantLookup(private val clazz: Class<*>, private val prefix: String) {
private val lookup = LongSparseArray<String>().apply {
for (field in clazz.declaredFields) try {
if (field.type == Long::class.java && field.name.startsWith(prefix)) put(field.getLong(null), field.name)
} catch (e: Exception) {
Timber.w(e)
}
}
operator fun invoke(reason: Long, trimPrefix: Boolean = false): String {
try {
lookup.get(reason)?.let { return if (trimPrefix) it.substring(prefix.length) else it }
} catch (e: ReflectiveOperationException) {
Timber.w(e)
}
return app.getString(R.string.failure_reason_unknown, reason)
}
}