import { TodoistApi } from '@doist/todoist-sdk';
export declare const RESPONSIBLE_USER_FILTERING: readonly ["assigned", "unassignedOrMe", "all"];
export type ResponsibleUserFiltering = (typeof RESPONSIBLE_USER_FILTERING)[number];
/**
 * Resolves a responsible user name/email to user ID and email.
 * @param client - Todoist API client
 * @param responsibleUser - User identifier (can be user ID, name, or email)
 * @returns Object with userId and email, or undefined if not provided
 * @throws Error if user cannot be found
 */
export declare function resolveResponsibleUser(client: TodoistApi, responsibleUser: string | undefined): Promise<{
    userId: string;
    email: string;
} | undefined>;
/**
 * Appends a filter component to a query string with proper ' & ' separator.
 * @param query - The existing query string
 * @param filterComponent - The filter component to append
 * @returns The updated query string
 */
export declare function appendToQuery(query: string, filterComponent: string): string;
/**
 * Builds a query filter string for responsible user filtering that can be appended to a Todoist filter query.
 * @param resolvedAssigneeId - The resolved assignee ID (if provided)
 * @param assigneeEmail - The assignee email (if provided)
 * @param currentUserId - The current authenticated user's ID
 * @param responsibleUserFiltering - The filtering mode ('assigned', 'unassignedOrMe', 'all')
 * @returns Query filter string (e.g., "assigned to: email@example.com" or "!assigned to: others")
 */
export declare function buildResponsibleUserQueryFilter({ resolvedAssigneeId, assigneeEmail, currentUserId, responsibleUserFiltering, }: {
    resolvedAssigneeId: string | undefined;
    assigneeEmail: string | undefined;
    currentUserId?: string;
    responsibleUserFiltering?: ResponsibleUserFiltering;
}): string;
/**
 * Filters tasks based on responsible user logic:
 * - If resolvedAssigneeId is another user: returns only tasks assigned to that user
 * - Otherwise: returns only unassigned tasks or tasks assigned to current user
 * @param tasks - Array of tasks to filter (must have responsibleUid property)
 * @param resolvedAssigneeId - The resolved assignee ID to filter by (optional)
 * @param currentUserId - The current authenticated user's ID
 * @returns Filtered array of tasks
 */
export declare function filterTasksByResponsibleUser<T extends {
    responsibleUid?: string;
}>({ tasks, resolvedAssigneeId, currentUserId, responsibleUserFiltering, }: {
    tasks: T[];
    resolvedAssigneeId: string | undefined;
    currentUserId: string;
    responsibleUserFiltering?: ResponsibleUserFiltering;
}): T[];
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