<?php

declare(strict_types=1);

namespace KTXC\Models\Tenant;

use InvalidArgumentException;
use KTXF\Json\JsonSerializableObject;

final class TenantPreviewVariants extends JsonSerializableObject
{
    /** @var array<string, TenantPreviewVariant> */
    private array $entries;

    public function __construct()
    {
        $this->entries = self::defaults();
    }

    public function jsonDeserialize(array|string $data): static
    {
        if (is_string($data)) {
            $data = json_decode($data, true, flags: JSON_THROW_ON_ERROR);
        }

        $defaults = self::defaults();
        $entries = [];
        foreach ($data as $name => $variant) {
            if (!is_string($name) || preg_match('/^[a-z][a-z0-9-]*$/', $name) !== 1) {
                throw new InvalidArgumentException('Invalid preview variant name');
            }
            if (!is_array($variant)) {
                throw new InvalidArgumentException('Preview variant configuration must be an object');
            }
            $entries[$name] = TenantPreviewVariant::fromArray($variant, $defaults[$name] ?? null);
        }
        $this->entries = $entries;

        return $this;
    }

    public function variant(string $name): ?TenantPreviewVariant
    {
        return $this->entries[$name] ?? null;
    }

    /** @return array<string, TenantPreviewVariant> */
    public function all(): array
    {
        return $this->entries;
    }

    public function jsonSerialize(): array
    {
        return array_map(
            static fn(TenantPreviewVariant $variant): array => $variant->toArray(),
            $this->entries,
        );
    }

    /** @return array<string, TenantPreviewVariant> */
    private static function defaults(): array
    {
        return [
            'popover' => new TenantPreviewVariant(640, 440, 'image/webp', 80),
            'thumbnail' => new TenantPreviewVariant(256, 256, 'image/webp', 75),
        ];
    }
}