bitmovin-player-react-native/build/utils/metadataPlatform.js

Official React Native bindings for Bitmovin's mobile Player SDKs.

import { Platform } from 'react-native';
import { MetadataType } from '../metadata';
/**
 * Adds platform discriminator to metadata entries received from native code.
 *
 * Native code doesn't include the platform field to avoid redundancy with `Platform.OS`.
 * This utility injects the platform field based on the current platform, enabling
 * TypeScript discriminated union type narrowing for platform-specific metadata structures.
 *
 * @param collection - Metadata collection from native code without platform discriminators
 * @returns Metadata collection with platform field added to each entry
 */
export function addPlatformToMetadata(collection) {
    const platform = Platform.OS === 'ios' ? 'ios' : 'android';
    return {
        ...collection,
        entries: collection.entries.map((entry) => ({
            ...entry,
            platform,
        })),
    };
}
/**
 * Adds the platform discriminator to metadata-carrying events when needed.
 *
 * Native payloads omit the platform field; this helper enriches only metadata
 * events that require platform-specific discriminators (ID3 and DATERANGE).
 */
export function addPlatformToMetadataEvent(event) {
    if (event.metadata &&
        (event.metadataType === MetadataType.ID3 ||
            event.metadataType === MetadataType.DATERANGE)) {
        return {
            ...event,
            metadata: addPlatformToMetadata(event.metadata),
        };
    }
    return event;
}
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