<?php

declare(strict_types=1);

namespace Mautic\LeadBundle\Field;

use Mautic\CoreBundle\Doctrine\Mapping\ClassMetadataBuilder;

class SchemaDefinition
{
    /**
     * Max length of VARCHAR fields.
     * Fields: charLengthLimit.
     */
    public const MAX_VARCHAR_LENGTH = 191;

    /**
     * Get the MySQL database type based on the field type
     * Use a static function so that it's accessible from DoctrineSubscriber
     * without causing a circular service injection error.
     */
    public static function getSchemaDefinition(string $alias, string $type, bool $isUnique = false, ?int $length = null): array
    {
        $options = ['notnull' => false];

        // Unique is always a string in order to control index length
        if ($isUnique) {
            return [
                'name'    => $alias,
                'type'    => 'string',
                'options' => $options,
            ];
        }

        switch ($type) {
            case 'datetime':
            case 'date':
            case 'time':
            case 'boolean':
                $schemaType = $type;
                break;
            case 'number':
                $schemaType = 'float';
                break;
            case 'timezone':
            case 'locale':
            case 'country':
            case 'email':
            case 'lookup':
            case 'select':
            case 'region':
            case 'tel':
            case 'url':
                $schemaType        = 'string';
                $options['length'] = $length ?: self::MAX_VARCHAR_LENGTH;
                break;
            case 'text':
                $schemaType        = (str_contains($alias, 'description')) ? 'text' : 'string';
                $options['length'] = $length;
                break;
            case 'multiselect':
                $schemaType        = 'text';
                $options['length'] = 65535;
                break;
            case 'html':
            default:
                $schemaType = 'text';
        }

        if ('string' === $schemaType && empty($options['length'])) {
            $options['length'] = self::MAX_VARCHAR_LENGTH;
        }

        return [
            'name'    => $alias,
            'type'    => $schemaType,
            'options' => $options,
        ];
    }

    /**
     * @param mixed[] $schemaDefinition
     */
    public static function getFieldCharLengthLimit(array $schemaDefinition): ?int
    {
        $length = $schemaDefinition['options']['length'] ?? null;
        $type   = $schemaDefinition['type'] ?? null;

        return match ($type) {
            'string' => $length ?? ClassMetadataBuilder::MAX_VARCHAR_INDEXED_LENGTH,
            'text'   => $length,
            default  => null,
        };
    }

    /**
     * Get the MySQL database type based on the field type.
     */
    public function getSchemaDefinitionNonStatic(string $alias, string $type, bool $isUnique = false, ?int $length = null): array
    {
        return self::getSchemaDefinition($alias, $type, $isUnique, $length);
    }
}