iosMain.dev.gitlive.firebase.firestore.internal.NativeDocumentSnapshotWrapper.kt Maven / Gradle / Ivy

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The Firebase Kotlin SDK is a Kotlin-first SDK for Firebase. It's API is similar to the Firebase Android SDK Kotlin Extensions but also supports multiplatform projects, enabling you to use Firebase directly from your common source targeting iOS, Android or JS.

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package dev.gitlive.firebase.firestore.internal

import cocoapods.FirebaseFirestoreInternal.FIRServerTimestampBehavior
import dev.gitlive.firebase.firestore.EncodedFieldPath
import dev.gitlive.firebase.firestore.NativeDocumentSnapshot
import dev.gitlive.firebase.firestore.ServerTimestampBehavior
import dev.gitlive.firebase.firestore.SnapshotMetadata
import platform.Foundation.NSNull

internal actual class NativeDocumentSnapshotWrapper actual constructor(actual val native: NativeDocumentSnapshot) {

    actual val id get() = native.documentID

    actual val reference get() = NativeDocumentReference(native.reference)

    actual fun getEncoded(field: String, serverTimestampBehavior: ServerTimestampBehavior): Any? =
        native.valueForField(field, serverTimestampBehavior.toIos())?.takeIf { it !is NSNull }

    // Despite its name implying otherwise, valueForField accepts both a String representation of a Field and a FIRFieldPath
    actual fun getEncoded(fieldPath: EncodedFieldPath, serverTimestampBehavior: ServerTimestampBehavior): Any? =
        native.valueForField(fieldPath, serverTimestampBehavior.toIos())?.takeIf { it !is NSNull }

    actual fun encodedData(serverTimestampBehavior: ServerTimestampBehavior): Any? =
        native.dataWithServerTimestampBehavior(serverTimestampBehavior.toIos())
            ?.mapValues { (_, value) ->
                value?.takeIf { it !is NSNull }
            }

    actual fun contains(field: String) = native.valueForField(field) != null
    actual fun contains(fieldPath: EncodedFieldPath) = native.valueForField(fieldPath) != null

    actual val exists get() = native.exists

    actual val metadata: SnapshotMetadata get() = SnapshotMetadata(native.metadata)

    fun ServerTimestampBehavior.toIos(): FIRServerTimestampBehavior = when (this) {
        ServerTimestampBehavior.ESTIMATE -> FIRServerTimestampBehavior.FIRServerTimestampBehaviorEstimate
        ServerTimestampBehavior.NONE -> FIRServerTimestampBehavior.FIRServerTimestampBehaviorNone
        ServerTimestampBehavior.PREVIOUS -> FIRServerTimestampBehavior.FIRServerTimestampBehaviorPrevious
    }
}