botbuilder-dialogs-adaptive/lib/selectors/conditionalSelector.d.ts

Rule system for the Microsoft BotBuilder dialog system.

/**
 * @module botbuilder-dialogs-adaptive
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
import { ActionContext } from '../actionContext';
import { Converter, ConverterFactory } from 'botbuilder-dialogs';
import { OnCondition } from '../conditions/onCondition';
import { TriggerSelector } from '../triggerSelector';
import { BoolProperty } from '../properties';
import { BoolExpression, ExpressionParserInterface } from 'adaptive-expressions';
export interface ConditionalSelectorConfiguration {
    condition?: BoolProperty;
    ifTrue?: TriggerSelector;
    ifFalse?: TriggerSelector;
}
/**
 * Select between two rule selectors based on a condition.
 */
export declare class ConditionalSelector extends TriggerSelector implements ConditionalSelectorConfiguration {
    static $kind: string;
    private _conditionals;
    private _evaluate;
    /**
     * Expression that determines which selector to use.
     */
    condition: BoolExpression;
    /**
     * Gets or sets selector if condition is true.
     */
    ifTrue: TriggerSelector;
    /**
     * Gets or sets selector if condition is false.
     */
    ifFalse: TriggerSelector;
    /**
     * Gets or sets the expression parser to use.
     */
    parser: ExpressionParserInterface;
    /**
     * Gets the converter for the selector configuration.
     *
     * @param property The key of the conditional selector configuration.
     * @returns The converter for the selector configuration.
     */
    getConverter(property: keyof ConditionalSelectorConfiguration): Converter | ConverterFactory;
    /**
     * Initialize the selector with the set of rules.
     *
     * @param conditionals Possible rules to match.
     * @param evaluate True if rules should be evaluated on select.
     */
    initialize(conditionals: OnCondition[], evaluate: boolean): void;
    /**
     * Select the best rule to execute.
     *
     * @param actionContext Dialog context for evaluation.
     * @returns A Promise with a number array.
     */
    select(actionContext: ActionContext): Promise<OnCondition[]>;
}
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