<?php

namespace ACP\RequestHandler\Ajax;

use AC\Capabilities;
use AC\ColumnSize;
use AC\Nonce;
use AC\Request;
use AC\Storage;
use AC\Type\ListScreenId;
use ACP\Preference;
use ACP\RequestAjaxHandler;
use LogicException;

class ListScreenTable implements RequestAjaxHandler {

	/**
	 * @var Storage\ListColumnOrder
	 */
	private $order_list_storage;

	/**
	 * @var Storage\UserColumnOrder
	 */
	private $order_user_storage;

	/**
	 * @var ColumnSize\ListStorage
	 */
	private $size_list_storage;

	/**
	 * @var ColumnSize\UserStorage
	 */
	private $size_user_storage;

	public function __construct(
		Storage\ListColumnOrder $order_list_storage,
		Storage\UserColumnOrder $order_user_storage,
		ColumnSize\ListStorage $size_list_storage,
		ColumnSize\UserStorage $size_user_storage
	) {
		$this->order_list_storage = $order_list_storage;
		$this->order_user_storage = $order_user_storage;
		$this->size_list_storage = $size_list_storage;
		$this->size_user_storage = $size_user_storage;
	}

	public function handle(): void {
		if ( ! current_user_can( Capabilities::MANAGE ) ) {
			return;
		}

		$request = new Request();

		if ( ! ( new Nonce\Ajax() )->verify( $request ) ) {
			wp_send_json_error();
		}

		try {
			$id = new ListScreenId( $request->get( 'list_id' ) );
		} catch ( LogicException $e ) {
			wp_send_json_error();
		}

		$this->set_current_user_column_sizes_as_the_default( $id );
		$this->set_current_user_column_orders_as_the_default( $id );

		wp_send_json_success();
	}

	private function set_current_user_column_sizes_as_the_default( ListScreenId $id ): void {
		$sizes = $this->size_user_storage->get_all( $id );

		if ( ! $sizes ) {
			return;
		}

		foreach ( $sizes as $column_name => $width ) {
			$this->size_list_storage->save( $id, (string) $column_name, $width );
		}

		$this->size_user_storage->delete_by_list_id( $id );
	}

	private function set_current_user_column_orders_as_the_default( ListScreenId $id ): void {
		$column_names = $this->order_user_storage->get( $id );

		if ( ! $column_names ) {
			return;
		}

		$this->order_list_storage->save( $id, $column_names );
		$this->order_user_storage->delete( $id );
	}

}