<?php

declare(strict_types=1);

namespace Mironsoft\Loyalty\Setup\Patch\Data;

use Magento\Customer\Model\Customer;
use Magento\Eav\Setup\EavSetupFactory;
use Magento\Framework\Setup\ModuleDataSetupInterface;
use Magento\Framework\Setup\Patch\DataPatchInterface;
use Mironsoft\Loyalty\Model\Source\LoyaltyTier;

/**
 * Registers loyalty_points_balance and loyalty_tier on the customer entity.
 */
class InstallCustomerLoyaltyAttributes implements DataPatchInterface
{
    /**
     * @param ModuleDataSetupInterface $moduleDataSetup Provides the setup connection for the patch.
     * @param EavSetupFactory $eavSetupFactory Creates the EavSetup helper used to register attributes.
     */
    public function __construct(
        private readonly ModuleDataSetupInterface $moduleDataSetup,
        private readonly EavSetupFactory $eavSetupFactory
    ) {
    }

    /**
     * Adds the points balance and tier attributes to the existing customer entity.
     *
     * @return void
     */
    public function apply(): void
    {
        $this->moduleDataSetup->getConnection()->startSetup();

        /** @var \Magento\Eav\Setup\EavSetup $eavSetup */
        $eavSetup = $this->eavSetupFactory->create(['setup' => $this->moduleDataSetup]);

        $eavSetup->addAttribute(Customer::ENTITY, 'loyalty_points_balance', [
            'type' => 'int',
            'label' => 'Loyalty Points Balance',
            'input' => 'text',
            'required' => false,
            'default' => '0',
            'visible' => true,
            'system' => false,
            'user_defined' => true,
            'position' => 200,
        ]);

        $eavSetup->addAttribute(Customer::ENTITY, 'loyalty_tier', [
            'type' => 'varchar',
            'label' => 'Loyalty Tier',
            'input' => 'select',
            'source' => LoyaltyTier::class,
            'required' => false,
            'default' => LoyaltyTier::TIER_BRONZE,
            'visible' => true,
            'system' => false,
            'user_defined' => true,
            'position' => 210,
        ]);

        $this->moduleDataSetup->getConnection()->endSetup();
    }

    /**
     * @return array<int, string>
     */
    public static function getDependencies(): array
    {
        return [];
    }

    /**
     * @return array<int, string>
     */
    public function getAliases(): array
    {
        return [];
    }
}

<?php

declare(strict_types=1);

namespace Mironsoft\Loyalty\Model\Source;

use Magento\Eav\Model\Entity\Attribute\Source\AbstractSource;

/**
 * Source model for the bronze/silver/gold loyalty tier dropdown. Shared between
 * the customer attribute loyalty_tier (chapter 21) and the company attribute
 * loyalty_tier_override (chapter 22) - see chapter 24 for the full rationale.
 */
class LoyaltyTier extends AbstractSource
{
    /**
     * @var string
     */
    public const TIER_BRONZE = 'bronze';

    /**
     * @var string
     */
    public const TIER_SILVER = 'silver';

    /**
     * @var string
     */
    public const TIER_GOLD = 'gold';

    /**
     * Returns the dropdown options shown in admin forms and grid filters.
     *
     * @return array<int, array{value: string, label: string}>
     */
    public function getAllOptions(): array
    {
        if ($this->_options === null) {
            $this->_options = [
                ['value' => self::TIER_BRONZE, 'label' => __('Bronze')],
                ['value' => self::TIER_SILVER, 'label' => __('Silver')],
                ['value' => self::TIER_GOLD, 'label' => __('Gold')],
            ];
        }

        return $this->_options;
    }
}