import { TodoistApi } from '@doist/todoist-sdk';
import { ResolvedUser } from './user-resolver.js';
export declare const AssignmentErrorType: {
    readonly USER_NOT_FOUND: "USER_NOT_FOUND";
    readonly USER_NOT_COLLABORATOR: "USER_NOT_COLLABORATOR";
    readonly PROJECT_NOT_SHARED: "PROJECT_NOT_SHARED";
    readonly TASK_NOT_ACCESSIBLE: "TASK_NOT_ACCESSIBLE";
    readonly PERMISSION_DENIED: "PERMISSION_DENIED";
    readonly PROJECT_NOT_FOUND: "PROJECT_NOT_FOUND";
    readonly TASK_NOT_FOUND: "TASK_NOT_FOUND";
};
export type AssignmentErrorType = (typeof AssignmentErrorType)[keyof typeof AssignmentErrorType];
export type ValidationError = {
    type: AssignmentErrorType;
    message: string;
    suggestions?: string[];
};
export type ValidationResult = {
    isValid: boolean;
    resolvedUser?: ResolvedUser;
    error?: ValidationError;
    taskId?: string;
    projectId?: string;
};
export type Assignment = {
    taskId?: string;
    projectId: string;
    responsibleUid: string;
};
export declare class AssignmentValidator {
    /**
     * Validate a single assignment operation
     */
    validateAssignment(client: TodoistApi, assignment: Assignment): Promise<ValidationResult>;
    /**
     * Validate multiple assignment operations in bulk
     */
    validateBulkAssignment(client: TodoistApi, assignments: Assignment[]): Promise<ValidationResult[]>;
    /**
     * Validate assignment for task creation (no taskId required)
     */
    validateTaskCreationAssignment(client: TodoistApi, projectId: string, responsibleUid: string): Promise<ValidationResult>;
    /**
     * Validate assignment for task update
     */
    validateTaskUpdateAssignment(client: TodoistApi, taskId: string, responsibleUid: string | null): Promise<ValidationResult>;
    /**
     * Get detailed assignment eligibility information for troubleshooting
     */
    getAssignmentEligibility(client: TodoistApi, projectId: string, responsibleUid: string, taskIds?: string[]): Promise<{
        canAssign: boolean;
        projectInfo: {
            name: string;
            isShared: boolean;
            collaboratorCount: number;
        };
        userInfo?: {
            resolvedName: string;
            isCollaborator: boolean;
        };
        taskInfo?: {
            accessibleTasks: number;
            inaccessibleTasks: number;
        };
        recommendations: string[];
    }>;
}
export declare const assignmentValidator: AssignmentValidator;
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