<?php
/**
 * PHP simple library for managing Json files.
 *
 * @author    Josantonius <hello@josantonius.com>
 * @copyright 2016 - 2018 (c) Josantonius - PHP-Json
 * @license   https://opensource.org/licenses/MIT - The MIT License (MIT)
 * @link      https://github.com/Josantonius/PHP-Json
 * @since     1.1.7
 */
namespace Josantonius\Json;

/**
 * The JSON last error collection.
 */
class JsonLastError
{
    /**
     * Check for errors.
     *
     * @return array|null
     */
    public static function check()
    {
        $collections = self::getCollection();

        $jsonLastError = json_last_error();

        return isset($jsonLastError) ? $collections[$jsonLastError] : $collections['default'];
    }

    /**
     * Get collection of JSON errors.
     *
     * @return array
     */
    public static function getCollection()
    {
        $collections = [
            JSON_ERROR_NONE => null,
            JSON_ERROR_DEPTH => [
                'message' => 'Maximum stack depth exceeded',
                'error-code' => 1,
            ],
            JSON_ERROR_STATE_MISMATCH => [
                'message' => 'Underflow or the modes mismatch',
                'error-code' => 2,
            ],
            JSON_ERROR_CTRL_CHAR => [
                'message' => 'Unexpected control char found',
                'error-code' => 3,
            ],
            JSON_ERROR_SYNTAX => [
                'message' => 'Syntax error, malformed JSON',
                'error-code' => 4,
            ],
            JSON_ERROR_UTF8 => [
                'message' => 'Malformed UTF-8 characters',
                'error-code' => 5,
            ],
            JSON_ERROR_RECURSION => [
                'message' => 'Recursion error in value to be encoded',
                'error-code' => 6,
            ],
            JSON_ERROR_INF_OR_NAN => [
                'message' => 'Error NAN/INF in value to be encoded',
                'error-code' => 7,
            ],
            JSON_ERROR_UNSUPPORTED_TYPE => [
                'message' => 'Type value given cannot be encoded',
                'error-code' => 8,
            ],
            'default' => [
                'message' => 'Unknown error',
                'error-code' => 999,
            ],
        ];

        if (version_compare(PHP_VERSION, '7.0.0', '>=')) {
            $collections[JSON_ERROR_INVALID_PROPERTY_NAME] = [
                'message' => 'Name value given cannot be encoded',
                'error-code' => 9,
            ];
            $collections[JSON_ERROR_UTF16] = [
                'message' => 'Malformed UTF-16 characters',
                'error-code' => 10,
            ];
        }

        return $collections;
    }
}