/**
 * External dependencies
 */
import type { Maybe, Opportunity } from '@nab/types';

/**
 * Internal dependencies
 */
import { State } from '../types';

export type RecommendationEngineAction =
	| InitRecommendationEngineData
	| MarkOpportunityAsBeingInstantiated
	| SetSuggestionGenerationState;

export function initRecommendationEngineData(
	data: Partial< State[ 'recommendationEngine' ] >
): InitRecommendationEngineData {
	return {
		type: 'INIT_RECOMMENDATION_ENGINE_DATA',
		data,
	};
}

export function setSuggestionGenerationState(
	state: State[ 'recommendationEngine' ][ 'suggestionGenerationState' ]
): SetSuggestionGenerationState {
	return {
		type: 'SET_SUGGESTION_GENERATION_STATE',
		state,
	};
}

export function markOpportunityAsBeingInstantiated(
	opportunity: Maybe< Opportunity >
): MarkOpportunityAsBeingInstantiated {
	return {
		type: 'MARK_OPPORTUNTIY_AS_BEING_INSTANTIATED',
		opportunity,
	};
}

// ============
// HELPER TYPES
// ============

type InitRecommendationEngineData = {
	readonly type: 'INIT_RECOMMENDATION_ENGINE_DATA';
	readonly data: Partial< State[ 'recommendationEngine' ] >;
};

type SetSuggestionGenerationState = {
	readonly type: 'SET_SUGGESTION_GENERATION_STATE';
	readonly state: State[ 'recommendationEngine' ][ 'suggestionGenerationState' ];
};

type MarkOpportunityAsBeingInstantiated = {
	readonly type: 'MARK_OPPORTUNTIY_AS_BEING_INSTANTIATED';
	readonly opportunity: Maybe< Opportunity >;
};