package util

import com.facebook.react.bridge.ReadableMap
import com.facebook.react.bridge.ReadableType

class MapUtil {
    companion object {
        fun toHashMap(map: ReadableMap?): Map<String, String?> {
            val hashMap = HashMap<String, String?>()
            if (!isEmpty(map)) {
                val iterator = map?.keySetIterator()
                while (iterator?.hasNextKey() == true) {
                    val key: String = iterator.nextKey()
                    when (map.getType(key)) {
                        ReadableType.Null -> hashMap[key] = null
                        ReadableType.Boolean -> hashMap[key] = map.getBoolean(key).toString()
                        ReadableType.Number -> hashMap[key] = map.getDouble(key).toString()
                        ReadableType.String -> hashMap[key] = map.getString(key).toString()
                        ReadableType.Map -> hashMap[key] = toHashMap(map.getMap(key)).toString()
                        else -> throw IllegalArgumentException("Could not convert object with key: $key.")
                    }
                }
            }
            return hashMap
        }

        fun isEmpty(map: ReadableMap?): Boolean {
            if (map == null) {
                return true
            }
            return !map.keySetIterator().hasNextKey()
        }
    }
}