import { __ } from '@wordpress/i18n';
import { renderField } from '../utils';
import StepNavButtons from '../components/nav-buttons';
import { Fragment, useState, useEffect, useMemo } from '@wordpress/element';
import { useOnboardingState } from '@Onboarding/store';
import { Title } from '@bsf/force-ui';
import apiFetch from '@wordpress/api-fetch';

const websiteTypes = [
	{
		label: __( 'Personal Website', 'surerank' ),
		value: 'personal',
	},
	{
		label: __( 'Business Website', 'surerank' ),
		value: 'business',
	},
	{
		label: __( 'Organization', 'surerank' ),
		value: 'organization',
	},
	{
		label: __( 'Personal Blog', 'surerank' ),
		value: 'blog',
	},
	{
		label: __( 'Community Blog/News Website', 'surerank' ),
		value: 'community',
	},
	{
		label: __( 'Webshop', 'surerank' ),
		value: 'webshop',
	},
];

const WebsiteDetails = () => {
	const [ { pages = [], websiteDetails = {}, userDetails = {} }, dispatch ] =
		useOnboardingState();

	const organizationOptions = Object.values(
		surerank_globals?.schema_type_options?.Organization || {}
	);

	const [ formState, setFormState ] = useState( websiteDetails );
	const [ pageOptions, setPageOptions ] = useState( pages ); // Local state for pages

	/**
	 * Fetch pages from the WordPress REST API
	 * @param {string} search - Search query
	 * @return {Promise<Array>} Array of page objects with label and value
	 */
	const fetchPages = async ( search = '' ) => {
		try {
			const response = await apiFetch( {
				path: `/wp/v2/pages?per_page=10${
					search ? `&search=${ encodeURIComponent( search ) }` : ''
				}`,
				method: 'GET',
			} );

			return response.map( ( page ) => ( {
				label: page.title.rendered || __( 'Untitled', 'surerank' ),
				value: page.id,
			} ) );
		} catch ( error ) {
			return [];
		}
	};

	useEffect( () => {
		const loadInitialPages = async () => {
			try {
				const pagesData = await fetchPages();
				dispatch( { pages: pagesData } );
				setPageOptions( pagesData ); // Update local state
			} catch ( error ) {
				dispatch( { pages: [] } );
				setPageOptions( [] );
			}
		};
		loadInitialPages();
	}, [] );

	// Sync formState and dispatch websiteDetails/userDetails
	useEffect( () => {
		const details = surerank_admin_common?.website_details;
		const data = {
			website_type:
				websiteDetails?.website_type ||
				details?.website_represents ||
				'',
			website_name:
				websiteDetails?.website_name || details?.website_name || '',
			website_owner_name:
				websiteDetails?.website_owner_name ||
				details?.website_owner_name ||
				'',
			organization_type:
				websiteDetails?.organization_type || 'Organization',
			website_owner_phone:
				websiteDetails?.website_owner_phone ||
				details?.website_owner_phone ||
				'',
			website_logo:
				websiteDetails?.website_logo || details?.website_logo || '',
			about_page:
				websiteDetails?.about_page || details?.website_about_us || '',
			contact_page:
				websiteDetails?.contact_page ||
				details?.website_contact_us ||
				'',
			first_name:
				userDetails?.first_name ||
				details?.website_lead_details?.first_name ||
				'',
			last_name:
				userDetails?.last_name ||
				details?.website_lead_details?.last_name ||
				'',
			email:
				userDetails?.email ||
				details?.website_lead_details?.email ||
				'',
		};

		const user_data = {
			first_name:
				userDetails?.first_name ||
				details?.website_lead_details?.first_name ||
				'',
			last_name:
				userDetails?.last_name ||
				details?.website_lead_details?.last_name ||
				'',
			email:
				userDetails?.email ||
				details?.website_lead_details?.email ||
				'',
		};

		dispatch( {
			websiteDetails: data,
			userDetails: user_data,
		} );

		setFormState( data );
	}, [] );

	const handleSubmit = ( event ) => {
		event.preventDefault();
	};

	const handleChangeSelection = ( name ) => ( value ) => {
		setFormState( ( prev ) => ( {
			...prev,
			[ name ]: value?.value ?? value,
		} ) );
	};

	const baseFields = [
		{
			label: __( 'This Website Represents', 'surerank' ),
			name: 'website_type',
			type: 'select',
			options: websiteTypes || [],
			width: 'half',
		},
		{
			label: __( 'Organization Type', 'surerank' ),
			name: 'organization_type',
			type: 'selectGroup',
			options: organizationOptions,
			width: 'half',
			conditionalOn: 'website_type',
			conditionalValues: [
				'business',
				'organization',
				'webshop',
				'community',
			],
		},
		{
			label: __( 'Website Name', 'surerank' ),
			name: 'website_name',
			type: 'text',
			width: 'half',
			conditionalOn: 'website_type',
			conditionalValues: [
				'business',
				'organization',
				'webshop',
				'community',
			],
		},
		{
			label: __( 'Website Owner Name', 'surerank' ),
			name: 'website_owner_name',
			type: 'text',
			width: 'half',
			conditionalOn: 'website_type',
			conditionalValues: [ 'personal', 'blog' ],
		},
		{
			label: __( 'Phone Number (Optional)', 'surerank' ),
			name: 'website_owner_phone',
			type: 'text',
			width: 'half',
		},
		{
			label: __( 'Website Logo', 'surerank' ),
			name: 'website_logo',
			type: 'file',
			width: 'full',
			accept: 'image/*',
			description: __(
				'Image needs to be 112×112 px or larger.',
				'surerank'
			),
		},
	];

	const loadingFields = useMemo(
		() => [
			{
				label: __( 'Select About Page', 'surerank' ),
				name: 'about_page',
				type: 'select',
				defaultValue: formState?.about_page || {},
				options: pageOptions || [],
				width: 'half',
				combobox: true,
				by: 'value',
				searchFn: fetchPages,
			},
			{
				label: __( 'Select Contact Page', 'surerank' ),
				name: 'contact_page',
				type: 'select',
				defaultValue: formState?.contact_page || {},
				options: pageOptions || [],
				width: 'half',
				combobox: true,
				searchFn: fetchPages,
				by: 'value',
			},
		],
		[ pageOptions, formState ]
	);

	const handleSaveForm = () => {
		dispatch( { websiteDetails: formState } );
	};

	// Filter fields based on their conditions
	const filteredFields = baseFields.filter( ( field ) => {
		if ( field.conditionalOn === undefined ) {
			return true;
		}
		return field.conditionalValues?.includes(
			formState[ field.conditionalOn ]
		);
	} );

	return (
		<form className="flex flex-col gap-6" onSubmit={ handleSubmit }>
			<div className="space-y-1">
				<Title
					tag="h4"
					title={ __( 'Your Website Basic Details', 'surerank' ) }
					size="md"
				/>
				<p>
					{ __(
						'Let’s start with some basic information about your website. This info helps personalize your site and may be used in things like search results, structured data, and public details about your site.',
						'surerank'
					) }
				</p>
			</div>

			<div className="flex flex-wrap gap-6">
				{ filteredFields.map( ( field, index ) => (
					<Fragment key={ field.name }>
						{ renderField(
							field,
							formState[ field.name ],
							handleChangeSelection( field.name ),
							null,
							{
								initialFocus: index === 0,
							}
						) }
					</Fragment>
				) ) }
				{ loadingFields.map( ( field ) => (
					<Fragment key={ field.name }>
						{ renderField(
							field,
							formState[ field.name ] ?? '',
							handleChangeSelection( field.name )
						) }
					</Fragment>
				) ) }
			</div>
			<StepNavButtons
				nextProps={ {
					onClick: handleSaveForm,
				} }
				backProps={ {
					onClick: handleSaveForm,
				} }
			/>
		</form>
	);
};

export default WebsiteDetails;
