/**
 * Trigger Operations Module
 * Handles triggers sync logic
 */
import type { ILegacySyncOptions, TArray, TNullable } from '../../types';
import { type SyncDbSide } from '../syncClient';
import type { Client } from 'pg';
interface ITriggerRow {
    trigger_name: string;
    event_manipulation: string;
    event_object_table: string;
    action_timing: string;
    action_statement: string;
}
interface ITriggerDefinition {
    trigger_name: string;
    event_manipulation: string;
    event_object_table: string;
    action_timing: string;
    action_statement: string;
    action_orientation: string | null;
    action_condition: string | null;
}
export declare class TriggerOperations {
    private sourceClient;
    private targetClient;
    private options;
    constructor(sourceClient: Client, targetClient: Client, options: ILegacySyncOptions);
    /**
     * Get all triggers from a schema on the given database.
     */
    getTriggers(side: SyncDbSide): Promise<TArray<ITriggerRow>>;
    /**
     * Get detailed trigger definition from the given database side.
     */
    getTriggerDefinition(side: SyncDbSide, triggerName: string, tableName: string): Promise<TNullable<ITriggerDefinition>>;
    /**
     * Compare two trigger definitions to detect changes
     */
    compareTriggerDefinitions(sourceTrigger: ITriggerDefinition | null | undefined, targetTrigger: ITriggerDefinition | null | undefined): boolean;
    /**
     * Generate CREATE TRIGGER statement for multi-event triggers
     */
    generateCreateTriggerStatement(triggerGroup: ITriggerRow[], targetSchema: string): string;
    handleTriggersToDrop(sourceTriggers: ITriggerRow[], targetTriggers: ITriggerRow[], alterStatements: string[]): Promise<void>;
    /**
     * Handle triggers to create in target
     */
    handleTriggersToCreate(sourceTriggers: ITriggerRow[], targetTriggers: ITriggerRow[], alterStatements: string[]): Promise<void>;
    /**
     * Group triggers by name to handle multi-event triggers
     */
    private groupTriggersByName;
    /**
     * Handle triggers that have changed
     */
    handleTriggersToUpdate(sourceTriggers: ITriggerRow[], targetTriggers: ITriggerRow[], alterStatements: string[]): Promise<void>;
    /**
     * Generate trigger operations for schema sync
     */
    generateTriggerOperations(): Promise<string[]>;
}
export {};
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