import { FxError } from "@microsoft/teamsfx-api";
import { Result } from "neverthrow";
import { TemplateSource, computeDigest } from "./templateSource";
export type TemplateArtifactKind = "create-selector" | "modify-selector" | "metadata" | "templates";
export type TemplateArtifactOrigin = "bundled" | "online" | "cache" | "bundled-fallback";
export interface TemplateArtifactRef {
    kind: TemplateArtifactKind;
    file: string;
    digest: string;
}
export interface V4TemplateTagEntry {
    version: string;
    artifacts: Record<TemplateArtifactKind, TemplateArtifactRef>;
}
export interface CachedTemplateArtifact {
    digest: string;
    bytes: Buffer;
}
export interface BundledTemplateArtifacts {
    version: string;
    artifacts: Record<TemplateArtifactKind, TemplateArtifactRef>;
    locations: Record<TemplateArtifactKind, string>;
}
export interface TemplateArtifactPort {
    env(name: string): string | undefined;
    tagList(): Promise<V4TemplateTagEntry[]>;
    download(version: string, ref: TemplateArtifactRef): Promise<Buffer>;
    cache: {
        get(version: string, kind: TemplateArtifactKind): CachedTemplateArtifact | undefined;
        put(version: string, kind: TemplateArtifactKind, digest: string, bytes: Buffer): void;
        keys(kind: TemplateArtifactKind): string[];
        delete(version: string, kind: TemplateArtifactKind): void;
    };
    bundled: BundledTemplateArtifacts;
}
export interface TemplateArtifactSnapshot {
    version: string;
    origin: TemplateArtifactOrigin;
    artifacts: Record<TemplateArtifactKind, TemplateArtifactRef>;
    bytes(kind: TemplateArtifactKind): Promise<Result<Buffer, FxError>>;
}
export interface ResolveTemplateArtifactSnapshotInput {
    range: string;
    bundled: boolean;
    requiredKind: TemplateArtifactKind;
    port: TemplateArtifactPort;
}
export interface TemplateArtifactChannelConfig {
    templatesV4TagListURL: string;
    templateDownloadBaseURL: string;
    tryLimits: number;
}
export declare const computeArtifactDigest: typeof computeDigest;
export declare function templateSourceFromArtifactSnapshot(snapshot: TemplateArtifactSnapshot): TemplateSource;
export declare function artifactUrl(baseURL: string, version: string, ref: TemplateArtifactRef): string;
export declare function artifactCacheFile(version: string, kind: TemplateArtifactKind): string;
export declare function parseArtifactTagList(ndjson: string): V4TemplateTagEntry[];
export declare function resolveTemplateArtifactSnapshot(input: ResolveTemplateArtifactSnapshotInput): Promise<Result<TemplateArtifactSnapshot, FxError>>;
export declare function artifactFileName(kind: TemplateArtifactKind): string;
export declare function createTemplateArtifactPort(config: TemplateArtifactChannelConfig, bundled: BundledTemplateArtifacts): TemplateArtifactPort;
//# sourceMappingURL=templateArtifacts.d.ts.map