const React = require('react');
const _ = require('lodash');
const Nav = require('naturalcrit/nav/nav.jsx');
const { splitTextStyleAndMetadata } = require('../../../shared/helpers.js'); // Importing the function from helpers.js

const BREWKEY  = 'homebrewery-new';
const STYLEKEY = 'homebrewery-new-style';
const METAKEY = 'homebrewery-new-meta';

const NewBrew = ()=>{
	const handleFileChange = (e)=>{
		const file = e.target.files[0];
		if(file) {
			const reader = new FileReader();
			reader.onload = (e)=>{
				const fileContent = e.target.result;
				const newBrew = {
					text  : fileContent,
					style : ''
				};
				if(fileContent.startsWith('```metadata')) {
					splitTextStyleAndMetadata(newBrew); // Modify newBrew directly
					localStorage.setItem(BREWKEY, newBrew.text);
					localStorage.setItem(STYLEKEY, newBrew.style);
					localStorage.setItem(
						METAKEY,
						JSON.stringify(
							_.pick(newBrew, ['title', 'description', 'tags', 'systems', 'renderer', 'theme', 'lang'])
						)
					);
					window.location.href = '/new';
				} else {
					const type = file.name.split('.').pop().toLowercase();
					if(type === 'txt') {
						alert(
							`This file type is correct, but it is not from the homebrewery or has been tampered with,
							 please try with a correct file or report this as an issue if you think it is a mistake.`
						);
					} else if(!type) {
						alert('This file is invalid, please, enter a valid file');
						console.log(file);
					} else {
						alert(`This is a .${type} file, only '.txt' files are allowed`);
					}
				}
			};
			reader.readAsText(file);
		}
	};

	return (
		<Nav.dropdown>
			<Nav.item
				className='new'
				color='purple'
				icon='fa-solid fa-plus-square'>
                new
			</Nav.item>
			<Nav.item
				className='fromBlank'
				href='/new'
				newTab={true}
				color='purple'
				icon='fa-solid fa-file'>
                from blank
			</Nav.item>

			<Nav.item
				className='fromFile'
				color='purple'
				icon='fa-solid fa-upload'
				onClick={()=>{ document.getElementById('uploadTxt').click(); }}>
				<input id='uploadTxt' className='newFromLocal' type='file' onChange={handleFileChange} style={{ display: 'none' }} />
                from file
			</Nav.item>
		</Nav.dropdown>
	);
};

module.exports = NewBrew;