<?php 
namespace application\controllers;

class DeployDevController {
    public static function deploy($data): void {
        $username =  $data['username'];
        $domain =    $data['domain'];
        $adminName = $data['admin_name'] ?? '';
        $adminPassword = $data['admin_password'];
	    $databaseName = $username . "_dev_";
	    $databaseName = $databaseName  . str_replace(['-', '.'], ["_", "_"], $domain);
        $webDir = "/home/$username/dev.$domain";
        $configTemplate = '/etc/apache2/site-config.in';
        $configFile = "/etc/apache2/sites-enabled/dev.$domain.conf";

        if (empty($username) || empty($domain) || empty($adminName) || empty($adminPassword)) {
            error_log("deploy: ERROR: No username, domain, admin_name or admin_password provided");
            http_response_code(400);
            error_log("deploy: ERROR: UserName 1 " .    $username);
            error_log("deploy: ERROR: Domain   1 " .    $domain);
            error_log("deploy: ERROR: UserName 2 " .    $data['username'] );
            error_log("deploy: ERROR: Domain   2 " .    $data['domain']   );
            error_log("deploy: ERROR: AdminName  " .    $adminName);
            error_log("deploy: ERROR: AdminPasswd" . $adminPassword);

            error_log(print_r($data,true));
            echo json_encode(['error' => 'Missing required parameters']);
            return;
        }

        error_log(" Starting function deploy for " . $username . " and " . $domain . "  DebugMode: " . $GLOBALS['debug']);

        $userExisted = false;
        if( strpos(file_get_contents("/etc/passwd"),$username) !== false) {
            $userExisted = true;
        }

        if ($userExisted != true) {
            // Create user without login access
            if ($GLOBALS['debug'] == true) {error_log("Adding User: " . $username); }
            exec("sudo /usr/sbin/useradd -m -k -M -s /usr/sbin/nologin $username  2>&1", $userOutput, $userReturnCode);
            if ($userReturnCode !== 0) {
                error_log("deploy: ERROR: Useradd for  $username failed, details => " . implode("\n", $userOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to create user', 'details' => implode("\n", $userOutput)]);
                return;
            }
        }

        if ($GLOBALS['debug'] == true) { error_log("Creating Webdir ($webDir) for : " . $username); }
        exec("sudo /usr/bin/mkdir $webDir 2>&1", $mkdirOutput, $mkdirReturnCode);
            if ($mkdirReturnCode !== 0) {
                error_log("deploy: ERROR: Create Webdir for  $username failed, details => ". implode("\n", $mkdirOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to create web dir', 'details' => implode("\n", $mkdirOutput)]);
                return;
            }

        if ($GLOBALS['debug'] == true) { error_log("Creating logdir for : " . $username); }
        if (is_dir("/home/$username/logs") != true) {
             exec("sudo /usr/bin/mkdir /home/$username/logs  2>&1", $mkdirOutput, $mkdirReturnCode);
                if ($mkdirReturnCode !== 0) {
                    error_log("deploy: ERROR: Failed to create log directory for  $username failed, details => " . implode("\n", $mkdirOutput));
                    http_response_code(500);
                    echo json_encode(['error' => 'Failed to create logs dir', 'details' => implode("\n", $mkdirOutput)]);
                    return;
                }
        }
        if ($GLOBALS['debug'] == true) { error_log("Creating backup dir for : " . $username); }
        if (is_dir("/home/$username/backups") != true) {
           exec("sudo /usr/bin/mkdir /home/$username/backups  2>&1", $mkdirOutput, $mkdirReturnCode);
           if ($mkdirReturnCode !== 0) {
               error_log("deploy: ERROR: mkdir /home/$username/backups failed, details => " . implode("\n", $mkdirOutput));
               http_response_code(500);
               echo json_encode(['error' => 'Failed to create backups dir', 'details' => implode("\n", $mkdirOutput)]);
               return;
           }
        }

        if ($GLOBALS['debug'] == true) { error_log("Chown homedir: " . $username); }
        exec("sudo /usr/bin/chown $username:$username /home/$username -R 2>&1", $chownOutput, $chownReturnCode);
        if ($chownReturnCode !== 0) {
            error_log("deploy: ERROR: chown on /home/$username failed, details => " . implode("\n", $chownOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to chown backups dir', 'details' => implode("\n", $chownOutput)]);
            return;
        }

        if ($GLOBALS['debug'] == true) { error_log("Reading Apache Config Template /etc/apache2/site-config.in"); }
        $configContent = file_get_contents($configTemplate);

        if ($GLOBALS['debug'] == true) { error_log("Replace config settings in Apache Config Template"); }
        $configContent = str_replace(['DOCUMENTROOT', 'SERVERNAME','USERNAME', 'DOMAINNAME', 'SERVERALIAS'], [$webDir, "dev.$domain",$username,"dev.$domain", "" ], $configContent);

        /*
        if ($GLOBALS['debug'] == true) { error_log("Running Certbot for Domain " . $domain); }
        exec("sudo /usr/bin/certbot certonly --webroot -w /etc/apache2/letsencrypt -d dev.$domain --non-interactive --agree-tos --email admin@$domain 2>&1", $output, $returnCode);
        if ($returnCode !== 0) {
            error_log("deploy: ERROR: certbot failed to create certificate  on dev.$domain, details => " . implode("\n", $output));
            http_response_code(500);
            echo json_encode(['error' => 'Certbot failed', 'details' => implode("\n", $output)]);
            return;
        }
        */
        if ($GLOBALS['debug'] == true) { error_log("Replace sslsettings in in Apache Config Template"); }
        $certDir = "/etc/letsencrypt/live/dev.$domain";
        $configContent = str_replace('DOMAINNAME', $domain, $configContent);

        if ($GLOBALS['debug'] == true) { error_log("Writing apache config file to " . $configFile); }
        if (file_put_contents($configFile, $configContent) != true) {
            error_log("deploy: ERROR: while writing apache config");
            echo json_encode(['error' => 'Failed to write Apache config', 'details' => []]);
        }

        exec('sudo /usr/bin/systemctl reload apache2  2>&1', $apacheOutput, $apacheReturnCode);
        if ($GLOBALS['debug'] == true) { error_log("Restarting Apache"); }
        if ($apacheReturnCode !== 0) {
            error_log("deploy: ERROR: Apache Reload error, details => " . implode("\n", $apacheOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to reload Apache', 'details' => implode("\n", $apacheOutput)]);
            return;
        }

        // Create PHP-FPM User
        // /etc/php/8.2/fpm/user.in
        if ($userExisted != true) {
            if ($GLOBALS['debug'] == true) {error_log("Writing PHP-FPM Config for : " . $username); }
            $phpContent = file_get_contents("/etc/php/8.2/fpm/user.in");
            $phpContent = str_replace("USERNAME", $username, $phpContent);
            file_put_contents("/etc/php/8.2/fpm/pool.d/" . $username . ".conf", $phpContent);

            if ($GLOBALS['debug'] == true) {error_log("Restarting PHP-FPM : " . $username);}
            exec('sudo /usr/bin/systemctl reload php8.2-fpm', $phpOutput, $phpReturnCode);
            if ($phpReturnCode !== 0) {
                error_log("deploy: ERROR: PHP-FPM reload error, details => " . implode("\n", $phpOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to reload PHP-FPM', 'details' => implode("\n", $phpOutput)]);
                return;
            }
        }
        //Create MySQL Database
        if ($GLOBALS['debug'] == true) { error_log("creating database: " . $databaseName); }
        $sqlCommand = "sudo mysql -e \"create database $databaseName;\"  2>&1";
        exec($sqlCommand,$mysqlOutput,$mysqlReturnCode);
            if ($mysqlReturnCode !== 0) {
                error_log("deploy: MySQL create database error, details => " . implode("\n", $mysqlOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to create database $databaseName', 'details' => implode("\n", $mysqlOutput)]);
                return;
            }
        //Create MySQL User

        $sqlCommand = "sudo mysql -e \"create user '" . $username . "'@'localhost' identified by '" . $username . "'\"  2>&1";
        if ($GLOBALS['debug'] == true) { error_log("creating database user: " . $sqlCommand); }
        exec($sqlCommand,$mysqlOutput,$mysqlReturnCode);
            if ($mysqlReturnCode !== 0) {
                error_log("deploy: MySQL create user $username error, details => " . implode("\n", $mysqlOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to create databaseuser $username', 'details' => implode("\n", $mysqlOutput)]);
                return;
            }

        //Grant permission
        if ($GLOBALS['debug'] == true) { error_log("granting permission on $databaseName to: " . $username); }
        $sqlCommand = "sudo mysql -e  \"grant all on " . $databaseName . ".* to '" . $username . "'@'localhost';\"  2>&1";
        exec($sqlCommand,$mysqlOutput,$mysqlReturnCode);
            if ($mysqlReturnCode !== 0) {
                error_log("deploy: MySQL grant permission to user $username error, details => " . implode("\n", $mysqlOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to grant permission on $databaseName ot $username', 'details' => implode("\n", $mysqlOutput)]);
                return;
            }

        // Deployment of the Concrete CMS Application
        if ($GLOBALS['debug'] == true) { error_log("Copy master directory to $webDir"); }
        exec("sudo /usr/bin/cp -r /var/www/master/* $webDir  2>&1",$cpOutput,$cpReturnCode);
            if ($cpReturnCode !== 0) {
                error_log("deploy: Error while copying master installation to $webDir, details => " . implode("\n", $cpOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to copy master installation into web dir', 'details' => implode("\n", $cpOutput)]);
                return;
            }

        if ($GLOBALS['debug'] == true) { error_log("Chown WebDir $webDir"); }
        exec("sudo /usr/bin/chown $username:$username $webDir -R  2>&1", $chownOutput, $chownReturnCode);
            if ($chownReturnCode !== 0) {
                error_log("deploy: chown error on $webDir, details => " . implode("\n", $chownOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to chown web dir', 'details' => implode("\n", $chownOutput)]);
                return;
            }

        if ($GLOBALS['debug'] == true) { error_log("Writing install script to: /home/" . $username . "/" . $databaseName ."-inst.sh"); }
        $installCommand = "#!/bin/bash\n";
        $installCommand .= "$webDir/concrete/bin/concrete5 c5:install --starting-point=restaurantly --db-server='localhost' --db-username='" . $username . "' --db-password='" . $username ."' --db-database='" . $databaseName . "' --timezone='Europe/Zurich' --admin-email='" . $adminName . "' --admin-password='" . $adminPassword . "' --site-locale=ch_DE --language=ch_DE --site='" . $domain . "' -n  2>&1 \n";
        $installCommand .= "$webDir/concrete/bin/concrete5 c5:package-install studio_templates 2>&1 \n";
        $installCommand .= "$webDir/concrete/bin/concrete5 studio:setup 2>&1 \n";
        file_put_contents("/var/www/scripts/" . $databaseName ."-inst.sh",$installCommand);

        if ($GLOBALS['debug'] == true) { error_log("Chmod install script: /home/" . $username . "/" . $databaseName ." -inst.sh"); }
        exec("sudo /usr/bin/chmod a+x /var/www/scripts/" . $databaseName ."-inst.sh 2>&1", $chmodOutput, $chmodReturnCode);
        if ($chmodReturnCode !== 0) {
            error_log("deploy: ERROR: chmod on /var/www/scripts/" . $databaseName ."-inst.sh failed, details => " . implode("\n", $chmodOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to chmod on /var/www/scripts/' . $databaseName .'-inst.sh', 'details' => implode("\n", $chmodOutput)]);
            return;
        }

        if ($GLOBALS['debug'] == true) { error_log("Executing Concrete 5 installation: " . $installCommand); }
        exec("sudo -u $username /var/www/sudo-concrete5.sh /var/www/scripts/" . $databaseName ."-inst.sh",$createOutput, $createReturnCode);
            if ($createReturnCode !== 0) {
                error_log("deploy: cms installation error, details => " . implode("\n", $createOutput));
                http_response_code(500);
                echo json_encode(['error' => 'Failed to install cms system', 'details' => implode("\n", $createOutput)]);
                return;
            }

        echo json_encode(['success' => 'Development site deployed successfully','details' => implode("\n", $createOutput)]);
    }


//exec("php /path/to/scripts/post_install_setup.php", $output, $code);


    public static function revert($data): void {
        $username = $data['username'] ?? '';
        $domain = $data['domain'] ?? '';
        $adminName = $data['admin_name'] ?? '';
        $adminPassword = $data['admin_password'] ?? '';
        $webDir = "/home/$username/dev.$domain";
	    $databaseName = $username . "_dev_";
	    $databaseName = $databaseName  . str_replace(['-', '.'], ["_", "_"], $domain);


	exec("sudo /usr/bin/rm -rf $webDir 2>&1", $rmOutput, $rmReturnCode);
        if ($rmReturnCode !== 0) {
            error_log("revert: error on rm $webDir -r, details => " . implode("\n", $rmOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to remove webdir dir', 'details' => implode("\n", $rmOutput)]);
            return;
        }

	exec("sudo /usr/bin/mkdir $webDir  2>&1", $mkdirOutput, $mkdirReturnCode);
        error_log("revert: error on mkdir $webDir, details => " . implode("\n", $mkdirOutput));
        if ($mkdirReturnCode !== 0) {
            http_response_code(500);
            echo json_encode(['error' => 'Failed to create web dir', 'details' => implode("\n", $mkdirOutput)]);
            return;
        }

	exec("sudo /usr/bin/chown $username:$username $webDir  2>&1", $chownOutput, $chownReturnCode);
        if ($chownReturnCode !== 0) {
            error_log("revert: chown error on $webDir, details => " . implode("\n", $chownOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to chown web dir', 'details' => implode("\n", $chownOutput)]);
            return;
        }
    $sqlCommand = "sudo mysql \"drop database $databaseName;\"  2>&1";
	exec($sqlCommand,$mysqlOutput,$mysqlReturnCode);
        if ($mysqlReturnCode !== 0) {
            error_log("revert: MySQL drop database error, details => " . implode("\n", $mysqlOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to drop database $usernmae', 'details' => implode("\n", $mysqlOutput)]);
            return;
        }

    $sqlCommand = "sudo mysql \"create database $databaseName;\"  2>&1";
	exec($sqlCommand,$mysqlOutput,$mysqlReturnCode);
        if ($mysqlReturnCode !== 0) {
            error_log("revert: MySQL create database error, details => " . implode("\n", $mysqlOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to create database $usernmae', 'details' => implode("\n", $mysqlOutput)]);
            return;
        }


	// Deployment of the Concrete CMS Application
	exec("sudo /usr/bin/cp -r /var/www/master/* $webDir  2>&1",$cpOutput,$cpReturnCode);
        if ($cpReturnCode !== 0) {
            error_log("revert: Error while copying master installation to $webDir, details => " . implode("\n", $cpOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to copy master installation into web dir', 'details' => implode("\n", $cpOutput)]);
            return;
        }


    exec("sudo /usr/bin/chown $username:$username $webDir -R  2>&1", $chownOutput, $chownReturnCode);
        if ($chownReturnCode !== 0) {
            error_log("revert: chown error on $webDir, details => " . implode("\n", $chownOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to chown web dir', 'details' => implode("\n", $chownOutput)]);
            return;
        }

	exec("sudo -u $username /var/www/sudo-concrete5.sh $webDir/concrete/bin/concrete5 c5:install  --db-server=localhost --db-username=$username --db-password=$username --db-database=$databaseName --timezone=\"Europe/Zurich\" --admin-email=$adminName  --admin-password=$adminPassword --site-locale=ch_DE --language=ch_DE --site=$domain --starting-point=atomik_blank -n -vv 2>&1",$createOutput, $createReturnCode);
        if ($createReturnCode !== 0) {
            error_log("revert: cms installation error, details => " . implode("\n", $createOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to install cms system', 'details' => implode("\n", $createOutput)]);
            return;
        }

	exec("sudo /usr/bin/chown $username:$username $webDir  2>&1", $chownOutput, $chownReturnCode);
        if ($chownReturnCode !== 0) {
            error_log("revert: chown error on $webDir, details => " . implode("\n", $chownOutput));
            http_response_code(500);
            echo json_encode(['error' => 'Failed to chown web dir', 'details' => implode("\n", $chownOutput)]);
            return;
        }

        echo json_encode(['success' => 'Development site deployed successfully']);
    }


    public static function terminate($data): void {

    }

}