<?php

namespace RR;

use RR\ParamType;

/**
 * Class to abstract the input (GET PARAMS, POST, etc...) value grabbing
 * POST always have precedence
 */
class Request
{

    /**
     * Search a param on the GET/POST array
     * If the key is not found we throw a `required_param_not_found` Exception
     *
     * @param strig $paramname
     * @param ParamType $type
     * @param Array $options
     *
     * @return mixed
     * @throws \Exception
     */
    public static function requiredParam(
        string $parname,
        ParamType $type = ParamType::INT,
        $options = Array()
    ): mixed {
        if (isset($_POST[$parname])) {
            $param = $_POST[$parname];
        } else if (isset($_GET[$parname])) {
            $param = $_GET[$parname];
        } else {
            throw new \Exception('required_param_not_found');
        }
        /*$param = self::filter($type, $param);

        foreach ($options as $key => $option){
            self::$key($param, $option);
        }*/
        return $param;
    }

    /**
     * Search a array param on the GET/POST array
     * If the key is not found, we throw a `required_param_not_found` Exception
     *
     * @param strig $paramname
     * @param ParamType $type
     * @param Array $options
     *
     * @return mixed
     * @throws \Exception
     */
    public static function requiredParamArray(
        string $parname,
        $options = Array()
    ): mixed {
        if (isset($_POST[$parname])) {
            $param = $_POST[$parname];
        } else if (isset($_GET[$parname])) {
            $param = $_GET[$parname];
        } else {
            throw new \Exception('required_param_not_found');
        }
      	return $param;
    }

    /**
     * Search a array param on the GET/POST array
     * If the key is not found we return the default value
     *
     * If the default $value type is not the same of the $type
     * Wwe throw a `default_value_type_missmatch` Exception
     *
     * @param strig $paramname
     * @param ParamType $type
     * @param mixed $default
     * @param Array $options
     *
     * @return mixed
     * @throws \Exception
     */
    public static function optionalParam(
        string $parname,
        ParamType $type = ParamType::INT,
        mixed $default = "",
        $options = Array(),
    ): mixed {
        if (isset($_POST[$parname])) {
            $param = $_POST[$parname];
        } else if (isset($_GET[$parname])) {
            $param = $_GET[$parname];
        } else {
            return $default;
        }
      	return $param;
    }

    /**
     * NOT IMPLEMENTED YET
     * Search a array param on the GET/POST array
     *
     * @param strig $paramname
     * @param Array $default
     * @param Array $options
     *
     * @todo Implement
     *
     * @return Array
     */
    public static function optionalParamArray(
        string $parname,
        Array $default = Array(),
        $options = Array()
    ): Array{
        // Not implemented yet
        return $default;
    }

    /**
    * Try to detect if the request came from AJAX/FETCH/POSTMAN 
    * in this cases, we might want to return something else
    *
    * @return bool
    */
    public static function detectAjaxRequest(): bool
    {
        if (
            isset($_SERVER['HTTP_X_REQUESTED_WITH']) &&
            strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest'
        ) {
            return true;
        }

        if (
            isset($_SERVER['CONTENT_TYPE']) &&
            str_contains(
                strtolower($_SERVER['CONTENT_TYPE']),
                'application/json'
            )
        ) {
            return true;
        }

        // Detecta ferramentas conhecidas
        $userAgent = strtolower($_SERVER['HTTP_USER_AGENT'] ?? '');

        if (
            str_contains($userAgent, 'postman') ||
            str_contains($userAgent, 'curl') ||
            str_contains($userAgent, 'insomnia') ||
            str_contains($userAgent, 'python') ||
            str_contains($userAgent, 'java')
        ) {
            return true;
        }

        // Headers comuns de navegadores modernos
        if (
            isset($_SERVER['HTTP_SEC_FETCH_SITE']) ||
            isset($_SERVER['HTTP_SEC_FETCH_MODE']) ||
            isset($_SERVER['HTTP_REFERER'])
        ) {
            return false;
        }

        return false;
    }

    /**
     *
     * @param string $paramname
     * @param ParamType $type
     * @param bool $cast
     *
     * @todo Implement casting
     * @todo Review this logic, I don'r remember what it does
     *
     * @return mixed
    private static function filter(
        $paramname = "", 
        ParamType $type = ParamType::INT,
        $cast = true
    ): mixed {
        switch ($type){
            case ParamType::INT:
                if(is_integer($paramname)){
                    return $paramname;
                }
                break;
            case ParamType::DOUBLE:
                if(is_double($paramname)){
                    return $paramname;
                }
                break;
            case ParamType::ALPHA:
                return $paramname;
                break;
            case ParamType::ALPHANUM:
                return $paramname;
                break;
        }
    }
    */

    /**
     * NOT IMPLEMENTED YET
     * Check if the numeric value is in a number range
     *
     * Examples:
     * From 10 to 35 = inRange($value, "10-35") 
     * From 45 to infinity = inRange($value, "45-") 
     * All numbers below 0 = inRange($value, "-0") 
     *
     * @todo Not Implemented yet
     *
     * @param int|float $value
     * @param string $range
     *
     * @return bool
     */
    private static function inRange(
        int|float $value,
        string $range
    ): bool {
        return true;
    }

}