<?php

/**
 * SPDX-License-Identifier: EUPL-1.2
 * Authors: see /README.md
 */

namespace SeaCMS\App\Test;

use PHPUnit\Framework\TestCase;
use SeaCMS\App;
use SeaCMS\App\TestBaseUrl;
use SeaCMS\App\TestBaseUrlException;
use Throwable;

final class AppTest extends TestCase {

    /**
     * @dataProvider apiRewriteProvider
     * @covers App::update_SERVERIfNeeded 
     * @param string $rootFolder,
     * @param string $filePath,
     * @param string $shortScriptName, 
     * @param string $queryString
     */
    public function testApiRewrite(
        string $rootFolder,
        string $filePath,
        string $shortScriptName, 
        string $queryString,
        string $waitedBaseUrl,
        ): void
    {
        $this->saveSERVER();
        $this->defineServer(
            true,
            $filePath,
            $shortScriptName,
            $queryString
        );
        $app = new App($rootFolder,new TestBaseUrl());
        $thrown = false;
        $foundTh = null;
        try {
            $output = $app->runPico();
        } catch (TestBaseUrlException $th) {
            $thrown = true;
            $foundTh = $th;
        } catch (Throwable $th){
            
        }
        $this->revertSERVER();
        $this->assertTrue($thrown,"TestBaseUrlException not found");
        $this->assertEquals($waitedBaseUrl,$foundTh->getBaseUrl(),"Not same baseUrl");
    }

    public function apiRewriteProvider()
    {
        $data = [];
        $this->prepareData($data,'content/*','content','index.php','/','','http://localhost/');
        $this->prepareData($data,'content/index.php*','content','index.php','/index.php','','http://localhost/');
        return $data;
    }

    public function prepareData(
        array &$data, 
        string $name, 
        string $rootFolder,
        string $filePath,
        string $shortScriptName, 
        string $queryString,
        string $waitedBaseUrl,
        )
    {
        $data[$name] = [
            'rootFolder' => $rootFolder,
            'filePath' => $filePath,
            'shortScriptName' => $shortScriptName,
            'queryString' => $queryString,
            'waitedBaseUrl' => $waitedBaseUrl,
        ];
    }

    /**
     * define $_SERVER because fastcgi not run in CLI
     * @param bool $reset reset previous $_SERVER
     * @param string $filePath realpath of current script file
     * @param string $shortScriptName uri path of current script file
     * @param string $queryString wanted query string
     * @param string $method
     * @param string $pathInfo
     */
    public function defineServer(
        bool $reset,
        string $filePath,
        string $shortScriptName,
        string $queryString,
        string $method = 'GET',
        string $pathInfo = ''
    )
    {
        if (is_file($filePath)){
            if (!is_array($_SERVER) || $reset){
                $new = [];
                if (is_array($_SERVER)){
                    foreach(['SERVER_SOFTWARE','SERVER_PROTOCOL','GATEWAY_INTERFACE'] as $key){
                        if (array_key_exists($key,$_SERVER)){
                            $new[$key] = $_SERVER[$key];
                        }
                    }
                }
                $_SERVER = $new;
            }
            $_SERVER['QUERY_STRING'] = $queryString;
            $_SERVER['REQUEST_METHOD'] = in_array($method,['GET','POST','PUT','DELETE','HEAD']) ? $method : 'GET';
            // $_SERVER['CONTENT_TYPE'] = 'not defined';
            // $_SERVER['CONTENT_LENGTH'] = 'not defined';
    
            $documentRoot = dirname(realpath($filePath));
            $fileName = basename(realpath($filePath));
            $documentRootShort = (substr($documentRoot,-strlen(DIRECTORY_SEPARATOR)) != DIRECTORY_SEPARATOR)
                ? $documentRoot
                : substr($documentRoot,0,-strlen(DIRECTORY_SEPARATOR));
            $documentRootFull = $documentRootShort.DIRECTORY_SEPARATOR;

            $scriptName = (basename($shortScriptName) == $fileName)
                ? $shortScriptName
                : $shortScriptName.((empty($shortScriptName) || substr($shortScriptName,-1) == '/') ? '' : '/').$fileName;

            $hashPos = strpos($queryString,'#');
            $queryStringWithoutHash = 
                (empty($queryString) || ($hashPos === 0))
                ? ''
                : (
                    ($hashPos === false)
                    ? "?$queryString"
                    : '?'.sustr($queryString,0,$hashPos+1)
                );
    
            $_SERVER['SCRIPT_FILENAME'] = $documentRootFull.$fileName;
            $_SERVER['SCRIPT_NAME'] = $scriptName;
            $_SERVER['PHP_SELF'] = $scriptName.$pathInfo;
            $_SERVER['PATH_INFO'] = $pathInfo;
            $_SERVER['ORIG_PATH_INFO'] = $pathInfo;
            $_SERVER['PATH_TRANSLATED'] = $documentRootShort.$pathInfo;
            if (substr($shortScriptName,-1) == '/'){
                if (!empty($pathInfo) && substr($pathInfo,0,1) == '/'){
                    $_SERVER['DOCUMENT_URI'] = $shortScriptName.substr($pathInfo,1);
                } else {
                    $_SERVER['DOCUMENT_URI'] = $shortScriptName.$pathInfo;
                }
            } else if (empty($pathInfo) || substr($pathInfo,0,1) == '/'){
                $_SERVER['DOCUMENT_URI'] = $shortScriptName.$pathInfo;
            } else {
                $_SERVER['DOCUMENT_URI'] = $shortScriptName.'/'.$pathInfo;
            }
            $_SERVER['REQUEST_URI'] = $_SERVER['DOCUMENT_URI'].$queryStringWithoutHash; 
            $_SERVER['DOCUMENT_ROOT'] = $documentRootShort; 
            $_SERVER['REMOTE_ADDR'] = '127.0.0.1';  // forced
            $_SERVER['REMOTE_PORT'] = '80';         // forced
            $_SERVER['SERVER_ADDR'] = '127.0.0.1';  // forced
            $_SERVER['SERVER_ADDR'] = '80';         // forced
            $_SERVER['SERVER_NAME'] = 'localhost';  // forced
            $_SERVER['HTTPS'] = null;               // forced
        }
    }

    /**
     * save previous $_SERVER in $GLOBALS if existing
     */
    public function saveSERVER()
    {
        if (!isset($GLOBALS['savedSERVER'])){
            $GLOBALS['savedSERVER'] = [
                'saved' => false,
                'value' => null
            ];
        }
        if (!$GLOBALS['savedSERVER']['saved']){
            if (!isset($_SERVER)){
                $GLOBALS['savedSERVER']['value'] = null;
                $GLOBALS['savedSERVER']['saved'] = true;
            } else {
                $GLOBALS['savedSERVER']['value'] = $_SERVER;
                $GLOBALS['savedSERVER']['saved'] = true;
            }
        }
    }

    /**
     * revert previous $_SERVER in $GLOBALS if existing
     */
    public function revertSERVER()
    {
        if (isset($GLOBALS['savedSERVER']['saved']) && $GLOBALS['savedSERVER']['saved']){
            if (is_null($GLOBALS['savedSERVER']['value'])){
                unset($_SERVER);
            } else {
                $_SERVER = $GLOBALS['savedSERVER']['value'];
            }
            $GLOBALS['savedSERVER']['saved'] = false;
            $GLOBALS['savedSERVER']['value'] = null;
        }
    }
}