import BigNumber from 'bignumber.js';
import { Context, Entity, NftCollection } from '../../../../internal';
import { AssetHolder, NftMetadata, OptionalArgsProcedureMethod, RedeemNftParams } from '../../../../types';
export type NftUniqueIdentifiers = {
    assetId: string;
    id: BigNumber;
};
export interface HumanReadable {
    id: string;
    collection: string;
}
/**
 * Class used to manage Nft functionality. Each NFT belongs to an NftCollection, which specifies the expected metadata values for each NFT
 */
export declare class Nft extends Entity<NftUniqueIdentifiers, HumanReadable> {
    id: BigNumber;
    /**
     * The {@link NftCollection} this NFT belongs to
     */
    collection: NftCollection;
    /**
     * Redeem (or "burns") the NFT, removing it from circulation
     */
    redeem: OptionalArgsProcedureMethod<RedeemNftParams, void>;
    /**
     * @hidden
     * Check if a value is of type {@link UniqueIdentifiers}
     */
    static isUniqueIdentifiers(identifier: unknown): identifier is NftUniqueIdentifiers;
    /**
     * @hidden
     */
    constructor(identifiers: NftUniqueIdentifiers, context: Context);
    /**
     * Get metadata associated with this token
     */
    getMetadata(): Promise<NftMetadata[]>;
    /**
     * Determine if the NFT exists on chain
     */
    exists(): Promise<boolean>;
    /**
     * Get the conventional image URI for the NFT
     *
     * This function will check for a token level value and a collection level value. Token level values take precedence over base values in case of a conflict.
     *
     * When creating a collection an issuer can either require per token images by specifying global metadata key `imageUri` as a collection key or by
     * setting a collection base image URL by setting a value on the collection corresponding to the global metadata key `baseImageUri`.
     *
     * This method will return `null` if the NFT issuer did not configure the collection according to the convention.
     *
     * Per token URIs provide the most flexibility, but require more chain space to store, increasing the POLYX fee to issue each token.
     *
     * The URI values can include `{tokenId}` that will be replaced with the NFTs ID. If a base URI does not specify this the ID will be appended onto the URL. Examples:
     *  - `https://example.com/nfts/{tokenId}/image.png` becomes `https://example.com/nfts/1/image.png`
     *  - `https://example.com/nfts` becomes `https://example.com/nfts/1` if used a base value, but remain unchanged as a local value
     */
    getImageUri(): Promise<string | null>;
    /**
     * Get the conventional token URI for the NFT
     *
     * This function will check for a token level value and a collection level value. Token level values take precedence over base values in case of a conflict.
     *
     * When creating a collection an issuer can either require per token URL by specifying global metadata key `tokenURI` as a collection key or by
     * setting a collection base URL by setting a value on the collection corresponding to the global metadata key `baseTokenUri` on the collection.
     *
     * This method will return `null` if the NFT issuer did not configure the collection according to the convention.
     *
     * Per token URIs provide the most flexibility, but require more chain space to store, increasing the POLYX fee to issue each token.
     *
     * The URI values can include `{tokenId}` that will be replaced with the NFTs ID. If a base URI does not specify this the ID will be appended onto the URL. Examples:
     *  - `https://example.com/nfts/{tokenId}/info.json` becomes `https://example.com/nfts/1/info.json`
     *  - `https://example.com/nfts` becomes `https://example.com/nfts/1` if used a base value, but remain unchanged as a local value
     */
    getTokenUri(): Promise<string | null>;
    /**
     * Get owner of the NFT
     *
     * @note This method returns `null` if there is no existing holder for the token. This may happen even if the token has been redeemed/burned
     */
    getOwner(): Promise<AssetHolder | null>;
    /**
     * Check if the NFT is locked in any settlement instruction
     *
     * @throws if NFT has no owner (has been redeemed)
     */
    isLocked(): Promise<boolean>;
    /**
     * @hidden
     */
    toHuman(): HumanReadable;
    /**
     * given a global metadata ID fetches a local URI value
     *
     * @hidden
     */
    private getLocalUri;
    /**
     *
     * given a global metadata ID fetches a base URI value
     *
     * @hidden
     */
    private getBaseUri;
    /**
     * @hidden
     */
    private templateId;
    /**
     * @hidden
     */
    private templateBaseUri;
    /**
     * helper to lookup global metadata ID by name
     *
     * @hidden
     */
    private getGlobalMetadataId;
}
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