roomescape-refactored/src/main/java/roomescape/payment/infrastructure/client/PaymentCancelResponseDeserializer.kt

package roomescape.payment.infrastructure.client

import com.fasterxml.jackson.core.JsonParser
import com.fasterxml.jackson.core.TreeNode
import com.fasterxml.jackson.databind.DeserializationContext
import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.deser.std.StdDeserializer
import roomescape.payment.web.PaymentCancel
import java.io.IOException
import java.time.OffsetDateTime

class PaymentCancelResponseDeserializer(
        vc: Class<PaymentCancel.Response>? = null
) : StdDeserializer<PaymentCancel.Response>(vc) {
    @Throws(IOException::class)
    override fun deserialize(
            jsonParser: JsonParser,
            deserializationContext: DeserializationContext?
    ): PaymentCancel.Response {
        val cancels: JsonNode = jsonParser.codec.readTree<TreeNode>(jsonParser)
                .get("cancels")
                .get(0) as JsonNode

        return PaymentCancel.Response(
                cancels.get("cancelStatus").asText(),
                cancels.get("cancelReason").asText(),
                cancels.get("cancelAmount").asLong(),
                OffsetDateTime.parse(cancels.get("canceledAt").asText())
        )
    }
}