<?php

namespace App\Validation;


/**
 * An error that concerns a field, with a bound message name
 */
class FieldValidationFail extends ValidationFail {
    private string $fieldName;

    /**
     * @param string $fieldName
     * @param string $message
     */
    public function __construct(string $fieldName, string $message) {
        parent::__construct("field", $message);
        $this->fieldName = $fieldName;
    }

    public function getFieldName(): string {
        return $this->fieldName;
    }

    public static function invalidChars(string $fieldName): FieldValidationFail {
        return new FieldValidationFail($fieldName, "field contains illegal chars");
    }

    public static function empty(string $fieldName): FieldValidationFail {
        return new FieldValidationFail($fieldName, "field is empty");
    }

    public static function missing(string $fieldName): FieldValidationFail {
        return new FieldValidationFail($fieldName, "field is missing");
    }

    public function jsonSerialize() {
        return ["field" => $this->fieldName, "message" => $this->getMessage()];
    }
}