<?php
/**
 * Canonical query state for the knowledge-payment order center.
 *
 * @package AKSRT
 */

namespace AKSRT\Payment;

use AKSRT\Core\DomainModel;

defined('ABSPATH') || exit;

final class OrderCenterQuery {

    public const STATUS_ALL = 'all';
    public const STATUS_PENDING = 'pending';
    public const STATUS_COMPLETED = 'completed';
    public const STATUS_CLOSED = 'closed';

    private const STATUS_GROUPS = [
        self::STATUS_ALL,
        self::STATUS_PENDING,
        self::STATUS_COMPLETED,
        self::STATUS_CLOSED,
    ];

    /** @var array<string, mixed> */
    private array $values;

    /**
     * @param array<string, mixed> $values
     */
    private function __construct(array $values) {
        $this->values = $values;
    }

    /**
     * @param array<string, mixed> $raw
     */
    public static function from_array(array $raw, int $default_per_page = 20): self {
        $status = sanitize_key((string) ($raw['status'] ?? self::STATUS_ALL));
        if (!in_array($status, self::STATUS_GROUPS, true)) {
            $status = self::STATUS_ALL;
        }

        $product_type = sanitize_key((string) ($raw['type'] ?? $raw['product_type'] ?? ''));
        $types = DomainModel::order_product_type_labels();
        if ($product_type !== '' && !isset($types[$product_type])) {
            $product_type = '';
        }

        $order_number = strtoupper(preg_replace('/[^A-Za-z0-9_-]/', '', (string) ($raw['order_number'] ?? '')) ?? '');
        $order_number = substr($order_number, 0, 32);

        $page = max(1, absint($raw['page'] ?? 1));
        $per_page = max(1, min(50, absint($raw['per_page'] ?? $default_per_page)));

        return new self([
            'status'       => $status,
            'product_type' => $product_type,
            'order_number' => $order_number,
            'page'         => $page,
            'per_page'     => $per_page,
        ]);
    }

    public function status(): string {
        return (string) $this->values['status'];
    }

    public function product_type(): string {
        return (string) $this->values['product_type'];
    }

    public function order_number(): string {
        return (string) $this->values['order_number'];
    }

    public function page(): int {
        return (int) $this->values['page'];
    }

    public function per_page(): int {
        return (int) $this->values['per_page'];
    }

    /** @return string[] */
    public function database_statuses(): array {
        return match ($this->status()) {
            self::STATUS_PENDING => [Order::STATUS_CREATED, Order::STATUS_PENDING],
            self::STATUS_COMPLETED => [Order::STATUS_PAID],
            self::STATUS_CLOSED => [Order::STATUS_CANCELLED, Order::STATUS_EXPIRED],
            default => [
                Order::STATUS_CREATED,
                Order::STATUS_PENDING,
                Order::STATUS_PAID,
                Order::STATUS_CANCELLED,
                Order::STATUS_EXPIRED,
            ],
        };
    }

    /** @return array<string, scalar> */
    public function url_values(): array {
        return array_filter([
            'order_status' => $this->status() !== self::STATUS_ALL ? $this->status() : '',
            'order_type' => $this->product_type(),
            'order_number' => $this->order_number(),
            'order_page' => $this->page() > 1 ? $this->page() : '',
        ], static fn($value): bool => $value !== '');
    }

    /** @return array<string, mixed> */
    public function repository_args(): array {
        return [
            'status_in' => $this->database_statuses(),
            'product_type' => $this->product_type(),
            'order_number_prefix' => $this->order_number(),
            'limit' => $this->per_page(),
            'offset' => ($this->page() - 1) * $this->per_page(),
        ];
    }
}