<?php declare(strict_types=1);

namespace Aviat\Kilo;

/**
 * The representation of the current document being edited
 *
 * @property-read int $numRows
 */
class Document {
	public ?Syntax $syntax = NULL;

	private function __construct(
		public array $rows = [],
		public ?string $filename = NULL,
		private bool $dirty = FALSE,
	) {}

	public function __get(string $name): ?int
	{
		if ($name === 'numRows')
		{
			return count($this->rows);
		}

		return NULL;
	}

	public static function new(): self
	{
		return new self();
	}

	public static function open(?string $filename = NULL): self
	{
		// @TODO move logic from Editor
		return new self(filename: $filename);
	}

	public function save(): bool
	{
		// @TODO move logic
		return false;
	}

	public function insertChar(Point $at, string $c): void
	{

	}

	public function isDirty(): bool
	{
		return $this->dirty;
	}

	public function deleteChar(Point $at): void
	{

	}

	private function insertNewline(Point $at): void
	{

	}
}