import { EPSG } from '@basemaps/geo';
import { DynamoDB } from 'aws-sdk';
import { BaseDynamoTable } from './aws.dynamo.table';
import { TileMetadataImagery } from './tile.metadata.imagery';
import { TileMetadataTileSet } from './tile.metadata.tileset';
export declare enum TileSetTag {
    /** Version to render by default */
    Production = "production",
    /** Most recent version */
    Head = "head",
    /** Pre release testing version */
    Beta = "beta"
}
/**
 * The database format for the ApiKey Table
 */
export declare type TileMetadataRecord = TileMetadataImageryRecord | TileMetadataSetRecord;
export interface TileMetadataImageryRecord extends BaseDynamoTable {
    /** Imagery set name */
    name: string;
    projection: EPSG.Google;
    /** Year the imagery was acquired */
    year: number;
    /** Resolution of imagery in MM */
    resolution: number;
    /** list of quad keys the imagery contains */
    quadKeys: string[];
}
export interface TileMetadataImageRule {
    /** Unique imagery id  (prefix: im_)*/
    id: string;
    /** Minimal zoom to show the layer @default 0 */
    minZoom: number;
    /** Max zoom to show the layer @default 32 */
    maxZoom: number;
    /** Rendering priority, lower numbers are rendered onto the canvas first */
    priority: number;
}
export interface TileMetadataSetRecord extends BaseDynamoTable {
    /** TileSet set name */
    name: string;
    /** Use for WMTS ows:title */
    title?: string;
    /** Use for WMTS ows:abstract */
    description?: string;
    projection: EPSG.Google;
    /** the rendering rules for imagery in this tileset */
    imagery: Record<string, TileMetadataImageRule>;
    /** Current version number */
    version: number;
    /** Total number of revisions */
    revisions?: number;
    /** Background to render for areas where there is no data */
    background?: {
        r: number;
        g: number;
        b: number;
        alpha: number;
    };
}
export interface TileSetRuleImagery {
    rule: TileMetadataImageRule;
    imagery: TileMetadataImageryRecord;
}
export declare enum RecordPrefix {
    Imagery = "im",
    TileSet = "ts"
}
export declare class TileMetadataTable {
    dynamo: DynamoDB;
    TileSet: TileMetadataTileSet;
    Imagery: TileMetadataImagery;
    constructor();
    /**
     * Prefix a dynamoDb id with the provided prefix if it doesnt already start with it.
     */
    static prefix(prefix: RecordPrefix, id: string): string;
    /**
     * Remove the prefix from a dynamoDb id
     */
    static unprefix(prefix: RecordPrefix, id: string): string;
    get<T>(key: string): Promise<T | null>;
    /**
     * Fetch imagery from the store
     * @param keys Imagery ids (already prefixed `im_${key}`)
     * @param output Adds fetched imagery to output
     */
    batchGet<T extends TileMetadataRecord>(keys: Set<string>): Promise<Map<string, T>>;
    put(record: TileMetadataRecord): Promise<string>;
}
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