import type ModeIndependentColor from './ModeIndependentColor';
import type { ContentMetadata } from './ContentMetadata';
/**
 * State for an entity. This is used for storing entity undo snapshot
 */
export interface EntityState {
    /**
     * Type of the entity
     */
    type: string;
    /**
     * Id of the entity
     */
    id: string;
    /**
     * The state of this entity to store into undo snapshot.
     * The state can be any string, or a serialized JSON object.
     * We are using string here instead of a JSON object to make sure the whole state is serializable.
     */
    state: string;
}
/**
 * A serializable snapshot of editor content, including the html content and metadata
 */
export default interface Snapshot {
    /**
     * HTML content string
     */
    html: string;
    /**
     * Metadata of the editor content state
     */
    metadata: ContentMetadata | null;
    /**
     * Known colors for dark mode
     */
    knownColors: Readonly<ModeIndependentColor>[];
    /**
     * Entity states related to this undo snapshots. When undo/redo to this snapshot, each entity state will trigger
     * an EntityOperation event with operation = EntityOperation.UpdateEntityState
     */
    entityStates?: EntityState[];
}