import { stripVTControlCharacters } from 'node:util';
import CLITable from 'cli-table3';
import { stringify } from 'csv-stringify';

const _longFormatter = new Intl.NumberFormat(undefined, { maximumFractionDigits: 0 });
export function formatLong(x: number): string {
	return _longFormatter.format(x);
}

export function formatBytes(bytes: number, decimals = 2): string {
	if (bytes === 0) return '0 Bytes';

	const k = 1000;
	const dm = decimals < 0 ? 0 : decimals;
	const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];

	const i = Math.floor(Math.log(bytes) / Math.log(k));

	return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
}

export function formatParagraph(str: string): string {
	return str
		.match(/.{1,80}(\s|$)/g)!
		.map((line) => line.trim())
		.join('\n');
}

export function formatHeader(title: string): string {
	return '' + '\n ' + title.toUpperCase() + '\n ────────────────────────────────────────────';
}

export enum TableFormat {
	PRETTY = 'pretty',
	CSV = 'csv',
	MD = 'md',
}

const CLI_TABLE_MARKDOWN_CHARS = {
	top: '',
	'top-mid': '',
	'top-left': '',
	'top-right': '',
	bottom: '',
	'bottom-mid': '',
	'bottom-left': '',
	'bottom-right': '',
	left: '|',
	'left-mid': '',
	mid: '',
	'mid-mid': '',
	right: '|',
	'right-mid': '',
	middle: '|',
};

export async function formatTable(format: TableFormat, head: string[], rows: string[][]): Promise<string> {
	switch (format) {
		case TableFormat.PRETTY: {
			const table = new CLITable({ head });
			table.push(...rows);
			return table.toString();
		}
		case TableFormat.CSV:
			return new Promise((resolve, reject) => {
				stringify([head, ...rows], (err, output) => {
					err ? reject(err) : resolve(output);
				});
			});
		case TableFormat.MD: {
			const table = new CLITable({ head, chars: CLI_TABLE_MARKDOWN_CHARS });
			table.push(new Array(rows[0].length).fill('---'));
			table.push(...rows);
			return stripVTControlCharacters(table.toString());
		}
	}
}

export function formatXMP(value: string | number | boolean | Record<string, unknown> | null): string {
	if (!value) {
		return '';
	}

	if (typeof value === 'string' || typeof value === 'number' || typeof value === 'boolean') {
		return value.toString();
	}

	if (value['@list']) {
		const list = value['@list'] as string[];
		const hasCommas = list.some((value) => value.indexOf(',') > 0);
		return list.join(hasCommas ? '; ' : ', ');
	}

	if (value['@type'] === 'rdf:Alt') {
		return (value['rdf:_1'] as Record<string, string>)['@value'];
	}

	return JSON.stringify(value);
}