<?php
// FormContent.php
// Created: 2022-02-10
// Updated: 2022-02-27

namespace Index\Http\Content;

use RuntimeException;
use Index\Http\HttpUploadedFile;

class FormContent implements IHttpContent {
    private array $postFields;
    private array $uploadedFiles;

    public function __construct(array $postFields, array $uploadedFiles) {
        $this->postFields = $postFields;
        $this->uploadedFiles = $uploadedFiles;
    }

    public function getParam(string $name, int $filter = FILTER_DEFAULT, array|int $options = 0): mixed {
        if(!isset($this->postFields[$name]))
            return null;
        return filter_var($this->postFields[$name] ?? null, $filter, $options);
    }

    public function hasParam(string $name): bool {
        return isset($this->postFields[$name]);
    }

    public function getParams(): array {
        return $this->postFields;
    }

    public function getUploadedFile(string $name): HttpUploadedFile {
        if(!isset($this->uploadedFiles[$name]))
            throw new RuntimeException('No file with name $name present.');
        return $this->uploadedFiles[$name];
    }

    public static function fromRaw(array $post, array $files): FormContent {
        return new FormContent(
            $post,
            HttpUploadedFile::createFromFILES($files)
        );
    }

    public static function fromRequest(): FormContent {
        return self::fromRaw($_POST, $_FILES);
    }

    public function __toString(): string {
        return '';
    }
}