import { __ } from '@wordpress/i18n';
import { AppState, ReducerAction, GeneratorAction, UrlStatus } from './types';
import { applyGeneratorAction, getUrlStatus } from './helpers';

// eslint-disable-next-line @typescript-eslint/no-explicit-any
declare const wpApiSettings: any;

export const runResultsGenerator = async (
	data: { state: AppState, dispatch: React.Dispatch<ReducerAction> },
	action?: GeneratorAction,
) => {
	const { state, dispatch } = data;
	dispatch( { type: 'generatedResults', payload: { ...state.generatedResults, loading: true } } );
	const result = await fetchResult( state, action );
	if ( result && result.completion ) {
		dispatch( { type: 'generatedResults', payload: { text: result.completion, loading: false, opened: true } } );
		return;
	}
	if ( ! result || result?.error ) {
		//handle error in future
		dispatch( { type: 'generatedResults', payload: { ...state.generatedResults, loading: false } } );
		return;
	}
	dispatch( { type: 'generatedResults', payload: { ...state.generatedResults, loading: false } } );
};

const fetchResult = async (
	data: AppState,
	action?: GeneratorAction,
) => {
	const inputData = {
		user_prompt: action ? applyGeneratorAction( action ) : data.prompt,
		tone: data.tone,
		model: data.ai_model,
		lang: data.language,
	};

	try {
		return fetch( wpApiSettings.root + 'urlslab/v1/generator/complete', {
			method: 'POST',
			headers: {
				'Content-Type': 'application/json',
				accept: 'application/json',
				'X-WP-Nonce': wpApiSettings.nonce,
			},
			credentials: 'include',
			body: JSON.stringify( inputData ),
		} ).then( ( response ) => {
			if ( response.ok ) {
				return response.json();
			}

			// show generic error if it's not 404
			return {
				error: response.status === 404 ? __( 'Urls not found. Check used urls or try again later.', 'urlslab' ) : __( 'Failed to load data.', 'urlslab' ),
			};
		} ).catch( ( error ) => {
			console.error( 'Error:', error );
			return null;
		} );
	} catch ( error ) {
		console.error( 'Error:', error );
		return null;
	}
};

export const checkAddedUrl = async (
	url: string,
	withScheduling: boolean,
): Promise<UrlStatus | null> => {
	try {
		return fetch( wpApiSettings.root + 'urlslab/v1/url/status/summary', {
			method: 'POST',
			headers: {
				'Content-Type': 'application/json',
				accept: 'application/json',
				'X-WP-Nonce': wpApiSettings.nonce,
			},
			credentials: 'include',
			body: JSON.stringify( { url, with_scheduling: withScheduling } ),
		} ).then( ( response ) => {
			return response.json();
		} ).then( ( result ) => {
			const status = getUrlStatus( result );
			if ( status === 'pending' ) {
				return new Promise( ( resolve ) => {
					setTimeout( () => resolve( checkAddedUrl( url, false ) ), 5000 );
				} );
			}
			return status;
		} ).catch( ( error ) => {
			console.error( 'Error:', error );
			return null;
		} ) as Promise<UrlStatus | null>;
	} catch ( error ) {
		console.error( 'Error:', error );
		return null;
	}
};