import { MessageStatus, ErrorCategory } from '../enums';
/**
 * Engraving line output format
 * Used when generating the output JSON file
 */
export interface EngravingLineOutput {
    [key: string]: string;
}
/**
 * Message Entity
 * Represents an engraving job message in the domain with business logic.
 *
 * Input format (from queue):
 *   { sku, template, lines: ["text1", "text2"], target_folder }
 *
 * Output format (generated JSON file):
 *   { sku, template, Engraving: [{Line1: "text1"}, {Line2: "text2"}] }
 */
export declare class MessageEntity {
    id: string;
    pgmq_message_id: number;
    sku: string;
    template: string;
    lines: string[];
    target_folder: string;
    status: MessageStatus;
    received_at: Date;
    processing_started_at?: Date;
    processing_completed_at?: Date;
    total_duration_ms?: number;
    output_file_path?: string;
    error_message?: string;
    error_category?: ErrorCategory;
    retry_count?: number;
    created_at?: Date;
    updated_at?: Date;
    deleted_from_queue_at?: Date;
    processed_by_instance_id?: string;
    processed_by_instance_name?: string;
    processed_by_hostname?: string;
    processed_by_platform?: string;
    constructor(id: string, pgmq_message_id: number, sku: string, template: string, lines: string[], target_folder: string, status: MessageStatus, received_at: Date, instanceId?: string, instanceName?: string, hostname?: string, platform?: string);
    /**
     * Marks the message as processing
     */
    markAsProcessing(): void;
    /**
     * Marks the message as completed
     * @param outputFilePath - Path where the JSON file was created (optional)
     */
    markAsCompleted(outputFilePath?: string): void;
    /**
     * Transforms the lines array into the engraving output format.
     * Converts ["text1", "text2"] to {Line1: "text1", Line2: "text2"}
     * @returns Single object with all lines as Line1, Line2, etc. properties
     */
    getEngravingOutput(): EngravingLineOutput;
    /**
     * Generates the complete output object for JSON file creation.
     * Output format: { sku, template, Engraving: [{Line1: "...", Line2: "..."}] }
     * @returns Object matching the output JSON format
     */
    getOutputJson(): {
        sku: string;
        template: string;
        Engraving: EngravingLineOutput[];
    };
    /**
     * Marks the message as failed with error details
     * @param errorMessage - Error message
     * @param errorCategory - Category of the error
     */
    markAsFailed(errorMessage: string, errorCategory: ErrorCategory): void;
    /**
     * Marks the message as deleted from the queue
     */
    markAsDeletedFromQueue(): void;
    /**
     * Checks if the message is completed
     * @returns true if completed, false otherwise
     */
    isCompleted(): boolean;
    /**
     * Checks if the message failed
     * @returns true if failed, false otherwise
     */
    isFailed(): boolean;
}
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