<?php

namespace Kirby\Form;

use Kirby\Cms\Field;
use Kirby\Exception\InvalidArgumentException;
use Kirby\Exception\NotFoundException;
use Kirby\Toolkit\Collection;
use Kirby\Toolkit\Obj;
use Kirby\Toolkit\Properties;
use Kirby\Toolkit\Query;
use Kirby\Toolkit\Str;

/**
 * Option Queries are run against any set
 * of data. In case of Kirby, you can query
 * pages, files, users or structures to create
 * options out of them.
 *
 * @package   Kirby Form
 * @author    Bastian Allgeier <bastian@getkirby.com>
 * @link      https://getkirby.com
 * @copyright Bastian Allgeier
 * @license   https://opensource.org/licenses/MIT
 *
 * @deprecated 3.8.0 Use `Kirby\Option\OptionsQuery` instead
 */
class OptionsQuery
{
	use Properties;

	/**
	 * @var array
	 */
	protected $aliases = [];

	/**
	 * @var array
	 */
	protected $data;

	/**
	 * @var array|string|null
	 */
	protected $options;

	/**
	 * @var string
	 */
	protected $query;

	/**
	 * @var mixed
	 */
	protected $text;

	/**
	 * @var mixed
	 */
	protected $value;

	/**
	 * OptionsQuery constructor
	 *
	 * @param array $props
	 */
	public function __construct(array $props)
	{
		$this->setProperties($props);
	}

	/**
	 * @return array
	 */
	public function aliases(): array
	{
		return $this->aliases;
	}

	/**
	 * @return array
	 */
	public function data(): array
	{
		return $this->data;
	}

	/**
	 * @param string $object
	 * @param string $field
	 * @param array $data
	 * @return string
	 * @throws \Kirby\Exception\NotFoundException
	 */
	protected function template(string $object, string $field, array $data)
	{
		$value = $this->$field();

		if (is_array($value) === true) {
			if (isset($value[$object]) === false) {
				throw new NotFoundException('Missing "' . $field . '" definition');
			}

			$value = $value[$object];
		}

		return Str::safeTemplate($value, $data);
	}

	/**
	 * @return array
	 */
	public function options(): array
	{
		if (is_array($this->options) === true) {
			return $this->options;
		}

		$data    = $this->data();
		$query   = new Query($this->query(), $data);
		$result  = $query->result();
		$result  = $this->resultToCollection($result);
		$options = [];

		foreach ($result as $item) {
			$alias = $this->resolve($item);
			$data  = array_merge($data, [$alias => $item]);

			$options[] = [
				'text'  => $this->template($alias, 'text', $data),
				'value' => $this->template($alias, 'value', $data)
			];
		}

		return $this->options = $options;
	}

	/**
	 * @return string
	 */
	public function query(): string
	{
		return $this->query;
	}

	/**
	 * @param $object
	 * @return mixed|string|null
	 */
	public function resolve($object)
	{
		// fast access
		if ($alias = ($this->aliases[get_class($object)] ?? null)) {
			return $alias;
		}

		// slow but precise resolving
		foreach ($this->aliases as $className => $alias) {
			if ($object instanceof $className) {
				return $alias;
			}
		}

		return 'item';
	}

	/**
	 * @param $result
	 * @throws \Kirby\Exception\InvalidArgumentException
	 */
	protected function resultToCollection($result)
	{
		if (is_array($result)) {
			foreach ($result as $key => $item) {
				if (is_scalar($item) === true) {
					$result[$key] = new Obj([
						'key'   => new Field(null, 'key', $key),
						'value' => new Field(null, 'value', $item),
					]);
				}
			}

			$result = new Collection($result);
		}

		if ($result instanceof Collection === false) {
			throw new InvalidArgumentException('Invalid query result data');
		}

		return $result;
	}

	/**
	 * @param array|null $aliases
	 * @return $this
	 */
	protected function setAliases(array|null $aliases = null)
	{
		$this->aliases = $aliases;
		return $this;
	}

	/**
	 * @param array $data
	 * @return $this
	 */
	protected function setData(array $data)
	{
		$this->data = $data;
		return $this;
	}

	/**
	 * @param array|string|null $options
	 * @return $this
	 */
	protected function setOptions($options = null)
	{
		$this->options = $options;
		return $this;
	}

	/**
	 * @param string $query
	 * @return $this
	 */
	protected function setQuery(string $query)
	{
		$this->query = $query;
		return $this;
	}

	/**
	 * @param mixed $text
	 * @return $this
	 */
	protected function setText($text)
	{
		$this->text = $text;
		return $this;
	}

	/**
	 * @param mixed $value
	 * @return $this
	 */
	protected function setValue($value)
	{
		$this->value = $value;
		return $this;
	}

	/**
	 * @return mixed
	 */
	public function text()
	{
		return $this->text;
	}

	public function toArray(): array
	{
		return $this->options();
	}

	/**
	 * @return mixed
	 */
	public function value()
	{
		return $this->value;
	}
}