<?php
    namespace Zampet\Helpers;

    use DateTime;

    class Sanitizer {
        public static function string(mixed $value): string|null {
            if(is_null($value)) {
                return null;
            }
            return trim(string: strip_tags(string: $value));
        }

        public static function int(mixed $value): int {
            return filter_var(value: $value, filter: FILTER_VALIDATE_INT) ?? 0;
        }

        public static function float(mixed $value): float {
            return filter_var(value: $value, filter: FILTER_VALIDATE_FLOAT) ?? 0.0;
        }

        public static function email(string $value): string {
            $value = trim(string: strtolower(string: $value));
            return filter_var(value: $value, filter: FILTER_VALIDATE_EMAIL) ?: '';
        }

        public static function phone(string $value): string {
            // remove tudo que não for número
            return preg_replace(pattern: '/\D+/', replacement: '', subject: $value) ?? '';
        }

        public static function document(string $value): string {
            // CPF, CNPJ, RG etc. só números
            return preg_replace(pattern: '/\D+/', replacement: '', subject: $value) ?? '';
        }

        public static function date(string $value, string $format = 'Y-m-d'): string {
            $value = trim($value);

            if ($value === '') {
                return '';
            }

            $date = DateTime::createFromFormat('!'.$format, $value);

            if (!$date) {
                // tenta converter qualquer formato válido
                $date = date_create($value);
            }

            return $date ? $date->format($format) : '';
        }

        public static function datetime(string $value, string $format = 'Y-m-d H:i:s'): string {
            $value = trim($value);

            if ($value === '') {
                return '';
            }

            $date = DateTime::createFromFormat('!'.$format, $value);

            if (!$date) {
                $date = date_create($value);
            }

            return $date ? $date->format($format) : '';
        }
    }