<?php

function get_php_version($cpanel, $domain) {
    try {
        $phpVerResp = $cpanel->uapi(
            'PHPSelector', 'get_php_version_for_domain',
            array(
                'domain'    => $domain,
            )
        );
        return $phpVerResp["cpanelresult"]["result"]["data"]["version"];
    } catch (Exception $e) {
        $err = $e->getMessage();
        error_log("SOFTACULOUS can\'t get PHP version for domain: $domain - $err");
    }
}

function get_available_php_versions($cpanel) {
    try {
        $resp = $cpanel->uapi(
            'PHPSelector', 'list_php_versions',
        );
        $resp_parsed = print_r( $resp, true );
        return $resp["cpanelresult"]["result"]["data"]["versions"];
    } catch (Exception $e) {
        $err = $e->getMessage();
        error_log("SOFTACULOUS can't get php versions, live api error: $err");
    }
    return [];
}

function set_php_version($cpanel, $domain, $ver) {
    try {
        $phpVerResp = $cpanel->uapi(
            'PHPSelector', 'set_php_version_for_domain',
            array(
                'domain'    => $domain,
                "php"       => $ver,
            )
        );
        return $phpVerResp["cpanelresult"]["result"]["data"]["version"];
    } catch (Exception $e) {
        $err = $e->getMessage();
        error_log("SOFTACULOUS can't set php version $ver for domain $domain, live api error: $err");
    }
}

function get_extensions($cpanel, $domain, $ver) {
    try {
        $phpVerResp = $cpanel->uapi(
            'PHPSelector', 'get_php_extensions_for_domain',
            array(
                'domain'    => $domain,
                "php"       => $ver,
            )
        );
        return $phpVerResp["cpanelresult"]["result"]["data"];
    } catch (Exception $e) {
        $err = $e->getMessage();
        error_log("SOFTACULOUS error api: $err");
    }
    return [];
}


function resolve_domain($cpanel, $proxy_domain) {
    try {
        $res = $cpanel->uapi(
            'DomainInfo', 'domains_data',
            array(
                'format' => "list",
            )
        );
        foreach ($res["cpanelresult"]["result"]["data"] as $domain) {
            if ($domain["domain"] == $proxy_domain) {
                return $domain["servername"];
            }
        }
    } catch (Exception $e) {
        $err = $e->getMessage();
        error_log("SOFTACULOUS error api: $err");
    }
    return $proxy_domain;
}

function normalise_php_version($version) {
	$splited = explode(".", $version, 3);
	if (count($splited) == 3) {
		array_pop($splited);
	}
	return implode(".", $splited);
}


function get_php_version_mapping() {
	$php_map = [];
    @exec("/usr/bin/selectorctl --list --json", $raw, $ret);
    $json_data = json_decode($raw[0], true);
	foreach($json_data['data'] as $php) {
		$php_map[$php["short"]] = $php["full"];
	}
	return $php_map;
}

function resolve_full_php_version($version, $mapping) {
    return $mapping[$version];
}

function HOOK_PHP_VERSION_SWITCH($domain_alias) {
    global $cpanel, $soft, $scripts, $softpanel, $error, $__hooks;
    $domain = resolve_domain($cpanel, $domain_alias);
    $current_php = get_php_version($cpanel, $domain);
    $php_mapping = get_php_version_mapping();
    $current_php_full = resolve_full_php_version($current_php, $php_mapping);
    $cms_php_min = $scripts[$soft]['php_min'];
    $cms_php_max = $scripts[$soft]['php_max'];

    $fit_min_php = 1;
    $fit_max_php = 1;

    if(!empty($cms_php_min)){
        $fit_min_php = sversion_compare($current_php_full, $cms_php_min, '>=');
    }

    if(!empty($cms_php_max)){
        $fit_max_php = sversion_compare($current_php_full, $cms_php_max, '<=');
    }

    if(!$fit_min_php || !$fit_max_php){
        if(!empty($cms_php_min)){
            $fit_min_php = 0;
        }
        if(!empty($cms_php_max)){
            $fit_max_php = 0;
        }
        $available_php_versions = get_available_php_versions($cpanel);
        rsort($available_php_versions);
        foreach($available_php_versions as $ver){
            $ver_full = resolve_full_php_version($ver, $php_mapping);
            if(!$fit_min_php) {
                $fit_min_php = sversion_compare($ver_full, $cms_php_min, '>=');
            }
            if(!$fit_max_php) {
                $fit_max_php = sversion_compare($ver_full, $cms_php_max, '<=');
            }
            // error_log("Check ver: $ver_full max: $cms_php_max, min: $cms_php_min, fit: ($fit_max_php,$fit_min_php)"); // Left for debug
            if($fit_min_php && $fit_max_php){
                // Ask for a confirmation
                if(!checkbox('php_version_select')){
                    $error[] = 'Current PHP version is '.$current_php_full.', unfortunately it does not fit CMS requirements <br />
                                <input type="checkbox" name="php_version_select" '.POSTChecked('php_version_select').' />
                                Do you wish to enable PHP '.$ver_full.' ? (Might cause issues with your existing installations).';
                }else{
                    $current_php = set_php_version($cpanel, $domain, $ver);
                    $current_php_full = resolve_full_php_version($current_php, $php_mapping);
                }
                break;
            }
        }
    }


    $extensions = get_extensions($cpanel, $domain, $current_php);
    foreach ($extensions as $ext_name=>$ext_data){
        if ($ext_data["state"] != "disabled") {
            $__hooks['loaded_extension'][] = $ext_name;
        }
    }

    if(in_array('nd_mysqli', $extensions)){
        $__hooks['loaded_extension'][] = 'mysqli';
    }

    if(in_array('nd_mysql', $extensions)){
        $__hooks['loaded_extension'][] = 'mysql';
    }

    if(in_array('nd_pdo_mysql', $extensions)){
        $__hooks['loaded_extension'][] = 'pdo_mysql';
    }

    define('PHP_EXT_EXHAUSTIVE', 1);
    define('php_version', $current_php_full);

}
?>