package io.caf.faceliveness

import com.caf.facelivenessiproov.input.CAFStage
import com.caf.facelivenessiproov.input.Time
import com.caf.facelivenessiproov.input.iproov.Filter
import org.json.JSONObject
import java.io.Serializable

internal class CafFaceLivenessConfig(jsonString: String) : Serializable {
    val cafStage: CAFStage?
    val filter: Filter?
    val enableScreenshots: Boolean?
    val loadingScreen: Boolean?
    val imageUrlExpirationTime: Time?
    val faceLivenessBaseUrl: String?
    val authenticationBaseUrl: String?
    val certificates: List<String>?

    init {
        val jsonObject = JSONObject(jsonString)

        cafStage = if (jsonObject.has(CAF_STAGE)) CAFStage.values()[jsonObject.getInt(CAF_STAGE)]
        else null
        filter = if (jsonObject.has(FILTER)) Filter.valueOf(jsonObject.getString(FILTER))
        else null
        enableScreenshots = jsonObject.optBoolean(ENABLE_SCREENSHOTS)
        loadingScreen = jsonObject.optBoolean(LOADING_SCREEN)
        imageUrlExpirationTime = if (jsonObject.has(IMAGE_URL_EXPIRATION_TIME)) Time.valueOf(
            jsonObject.getString(IMAGE_URL_EXPIRATION_TIME)
        ) else null
        faceLivenessBaseUrl = jsonObject.optString(FACE_LIVENESS_BASE_URL)
        authenticationBaseUrl = jsonObject.optString(AUTHENTICATION_BASE_URL)
        certificates = if (jsonObject.isNull(CERTIFICATES)) emptyList() else {
            val jsonArray = jsonObject.optJSONArray(CERTIFICATES)
            List(jsonArray.length()) { jsonArray.getString(it) }
        }
    }

    private companion object {
        const val CAF_STAGE = "cafStage"
        const val FILTER = "filter"
        const val ENABLE_SCREENSHOTS = "enableScreenshots"
        const val LOADING_SCREEN = "loadingScreen"
        const val IMAGE_URL_EXPIRATION_TIME = "imageUrlExpirationTime"
        const val FACE_LIVENESS_BASE_URL = "faceLivenessBaseUrl"
        const val AUTHENTICATION_BASE_URL = "authenticationBaseUrl"
        const val CERTIFICATES = "certificates"
    }
}