package com.checkoutreactnativecomponents.utils

import com.checkout.components.interfaces.localisation.ComponentTranslationKey
import com.checkout.components.interfaces.localisation.Locale
import com.checkout.components.interfaces.localisation.Translations
import com.facebook.react.bridge.ReadableMap

public object TranslationsBuilder {
    public fun fromReadableMap(translationsMap: ReadableMap?): Translations? {
        if (translationsMap == null) {
            return null
        }

        val result = mutableMapOf<Locale, Map<ComponentTranslationKey, String>>()
        val iterator = translationsMap.keySetIterator()

        while (iterator.hasNextKey()) {
            val localeString = iterator.nextKey()
            val localeTranslations = translationsMap.getMap(localeString)

            if (localeTranslations != null) {
                val locale = LocaleBuilder.fromString(localeString)
                if (locale != null) {
                    val translationMap = buildTranslationMap(localeTranslations)
                    if (translationMap.isNotEmpty()) {
                        result[locale] = translationMap
                    }
                }
            }
        }

        return result.ifEmpty {
            null
        }
    }

    private fun buildTranslationMap(localeTranslations: ReadableMap): Map<ComponentTranslationKey, String> {
        val result = mutableMapOf<ComponentTranslationKey, String>()
        val iterator = localeTranslations.keySetIterator()

        while (iterator.hasNextKey()) {
            val jsKey = iterator.nextKey()
            val translationValue = localeTranslations.getString(jsKey)

            if (!translationValue.isNullOrEmpty()) {
                val translationKey = mapJSKeyToComponentTranslationKey(jsKey)
                if (translationKey != null) {
                    result[translationKey] = translationValue
                }
            }
        }
        return result
    }

    private fun mapJSKeyToComponentTranslationKey(jsKey: String): ComponentTranslationKey? {
        return when (jsKey) {
            // Address-related translations
            "addressLine1" -> ComponentTranslationKey.AddressAddressLine1
            "addressLine2" -> ComponentTranslationKey.AddressAddressLine2
            "addBillingAddress" -> ComponentTranslationKey.AddressBillingAdd
            "city" -> ComponentTranslationKey.AddressCity
            "country" -> ComponentTranslationKey.AddressCountry
            "selectCountry" -> ComponentTranslationKey.AddressCountrySelect
            "editAddress" -> ComponentTranslationKey.AddressEditAddress
            // Select State missing: "selectState" => ComponentTranslationKey.AddressSelectState
            "state" -> ComponentTranslationKey.AddressState
            "zip" -> ComponentTranslationKey.AddressZip

            // Card-related translations
            "card" -> ComponentTranslationKey.Card
            "useShippingAsBilling" -> ComponentTranslationKey.CardAddressUseShippingAsBilling
            "cardHolderName" -> ComponentTranslationKey.CardHolderName
            "cardNumber" -> ComponentTranslationKey.CardNumber
            "cardNumberInvalid" -> ComponentTranslationKey.CardNumberInvalid
            "cardNumberNotSupported" -> ComponentTranslationKey.CardNumberNotSupported
            "cardExpiryDate" -> ComponentTranslationKey.CardExpiryDate
            "cardExpiryDateInvalid" -> ComponentTranslationKey.CardExpiryDateInvalid
            "cardExpiryDateIncomplete" -> ComponentTranslationKey.CardExpiryDateIncomplete
            "cardExpiryDatePlaceholderMonth" -> ComponentTranslationKey.CardExpiryDatePlaceholderMonth
            "cardExpiryDatePlaceholderYear" -> ComponentTranslationKey.CardExpiryDatePlaceholderYear
            "cardSecurityCode" -> ComponentTranslationKey.CardSecurityCode
            "cardSecurityCodeInvalid" -> ComponentTranslationKey.CardSecurityCodeInvalid
            "cardSecurityCodePlaceholder" -> ComponentTranslationKey.CardSecurityCodePlaceholder

            // Form-related translations
            "formRequired" -> ComponentTranslationKey.FormRequired
            "addAddress" -> ComponentTranslationKey.FormAddAddress
            "address" -> ComponentTranslationKey.FormAddress
            "billingAddress" -> ComponentTranslationKey.FormBillingAddress
            "email" -> ComponentTranslationKey.FormEmail
            "emailFormatInvalid" -> ComponentTranslationKey.FormEmailFormatInvalid
            "firstName" -> ComponentTranslationKey.FormFirstName
            "lastName" -> ComponentTranslationKey.FormLastName
            "insufficientCharacters" -> ComponentTranslationKey.FormInsufficientCharacters
            "noMatchesFound" -> ComponentTranslationKey.FormNoMatchesFound
            "optional" -> ComponentTranslationKey.FormOptional
            "phoneNumber" -> ComponentTranslationKey.FormPhoneNumber
            "search" -> ComponentTranslationKey.FormSearch
            "trySearchingWithAnotherTerm" -> ComponentTranslationKey.FormTrySearchingWithAnotherTerm

            // Pay button-related translations
            "payButtonPay" -> ComponentTranslationKey.PayButtonPay
            "confirm" -> ComponentTranslationKey.PayButtonConfirm
            "payButtonPaymentComplete" -> ComponentTranslationKey.PayButtonPaymentComplete
            "payButtonPaymentProcessing" -> ComponentTranslationKey.PayButtonPaymentProcessing

            // Payment declined-related translations
            "paymentDeclinedInvalidCustomerData" -> ComponentTranslationKey.PaymentDeclinedInvalidCustomerData
            "paymentDeclinedInvalidPaymentSessionData" -> ComponentTranslationKey.PaymentDeclinedInvalidPaymentSessionData
            "paymentDeclinedMerchantMisconfiguration" -> ComponentTranslationKey.PaymentDeclinedMerchantMisconfiguration
            "paymentDeclinedNotEnoughFunds" -> ComponentTranslationKey.PaymentDeclinedNotEnoughFunds
            "paymentDeclinedTryAgain" -> ComponentTranslationKey.PaymentDeclinedTryAgain

            // Preferred scheme-related translations
            "preferredSchemeCta" -> ComponentTranslationKey.PreferredSchemeCta
            "preferredSchemeDescription" -> ComponentTranslationKey.PreferredSchemeDescription

            // Unknown key
            else -> {
                null
            }
        }
    }
}