import { type FileCacheEntry } from "./fileCache.js";
export interface DriveFile {
    fileId: string;
    name: string;
    content: string;
    revision: string;
    mimeType: string;
    modifiedTime: string;
}
export interface WriteResult {
    fileId: string;
    revision: string;
    modifiedTime: string;
}
export declare class DriveClient {
    private readonly drive;
    private readonly folderId;
    constructor();
    /** Verify auth and required folder are accessible. Called on server start. */
    verifyAuth(): Promise<void>;
    /** List all .md files in the wiki folder, returning cached metadata. */
    listFiles(): Promise<FileCacheEntry[]>;
    /** Read a file by name, using cache for metadata but always fetching content. */
    readFile(name: string): Promise<DriveFile>;
    /**
     * Create a new file in the wiki folder.
     * Throws DrivePermissionError if a file with this name already exists.
     */
    createFile(name: string, content: string): Promise<WriteResult>;
    /**
     * Update an existing file with optimistic concurrency.
     * Caller must pass the revision they read; if it doesn't match current,
     * throws DriveConflictError.
     */
    updateFile(fileId: string, content: string, seenRevision: string): Promise<WriteResult>;
    /** Rename a file (used for move/archive). Does not delete. */
    renameFile(fileId: string, newName: string): Promise<WriteResult>;
    /** Ensure index.md and log.md exist; create them if missing. */
    bootstrapWikiFiles(): Promise<void>;
    getFolderId(): string;
}
export declare function getDriveClient(): DriveClient;
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