# script_nextcloud_desc()
sub script_nextcloud_desc
{
return "Nextcloud";
}

sub script_nextcloud_uses
{
return ( "php" );
}

sub script_nextcloud_longdesc
{
return "Nextcloud gives you universal access to your files through a web interface or WebDAV";
}

# script_nextcloud_versions()
sub script_nextcloud_versions
{
return ( "24.0.4" );
}

sub script_nextcloud_php_vers
{
return ( 5 );
}

sub script_nextcloud_release
{
return 2;	# For PHP version bump to 7.3
}

sub script_nextcloud_can_upgrade
{
local ($sinfo, $newver) = @_;
# Can upgrade 19 -> 20
return 1;
}

sub script_nextcloud_php_modules
{
local ($d, $ver, $phpver, $opts) = @_;
local ($dbtype, $dbname) = split(/_/, $opts->{'db'}, 2);
my @deps = $dbtype eq "mysql" ? ("mysql") : ("pgsql");
push(@deps, ( "gd", "xml", "curl", "zip", "intl", "ctype", "dom",
              "iconv", "json", "mbstring" ));
return @deps;
}

sub script_nextcloud_php_optional_modules
{
return ( "libxml", "session", "openssl", "zlib", "posix", "bcmath", "gmp" );
}

sub script_nextcloud_php_vars
{
return ( [ 'memory_limit', '512M', '+' ] );
}

sub script_nextcloud_dbs
{
return ("mysql", "postgres");
}

sub script_nextcloud_php_fullver
{
local ($d, $ver, $sinfo) = @_;
return "7.3";
}

# script_nextcloud_params(&domain, version, &upgrade-info)
# Returns HTML for table rows for options for installing Wordpress
sub script_nextcloud_params
{
local ($d, $ver, $upgrade) = @_;
local $rv;
local $hdir = &public_html_dir($d, 1);
if ($upgrade) {
	# Options are fixed when upgrading
	local ($dbtype, $dbname) = split(/_/, $upgrade->{'opts'}->{'db'}, 2);
	$rv .= &ui_table_row("Database for Nextcloud tables", $dbname);
	local $dir = $upgrade->{'opts'}->{'dir'};
	$dir =~ s/^$d->{'home'}\///;
	$rv .= &ui_table_row("Install directory", $dir);
	}
else {
	# Show editable install options
	local @dbs = &domain_databases($d, [ "mysql", "postgres" ]);
	$rv .= &ui_table_row("Database for Nextcloud tables",
		     &ui_database_select("db", undef, \@dbs, $d, "nextcloud"));
	$rv .= &ui_table_row("Install sub-directory under <tt>$hdir</tt>",
			     &ui_opt_textbox("dir", &substitute_scriptname_template("nextcloud", $d), 30, "At top level"));
	}
return $rv;
}

# script_nextcloud_parse(&domain, version, &in, &upgrade-info)
# Returns either a hash ref of parsed options, or an error string
sub script_nextcloud_parse
{
local ($d, $ver, $in, $upgrade) = @_;
if ($upgrade) {
	# Options are always the same
	return $upgrade->{'opts'};
	}
else {
	local $hdir = &public_html_dir($d, 0);
	$in{'dir_def'} || $in{'dir'} =~ /\S/ && $in{'dir'} !~ /\.\./ ||
		return "Missing or invalid installation directory";
	local $dir = $in{'dir_def'} ? $hdir : "$hdir/$in{'dir'}";
	local ($newdb) = ($in->{'db'} =~ s/^\*//);
	return { 'db' => $in->{'db'},
		 'newdb' => $newdb,
		 'dir' => $dir,
		 'path' => $in{'dir_def'} ? "/" : "/$in{'dir'}", };
	}
}

# script_nextcloud_check(&domain, version, &opts, &upgrade-info)
# Returns an error message if a required option is missing or invalid
sub script_nextcloud_check
{
local ($d, $ver, $opts, $upgrade) = @_;
$opts->{'dir'} =~ /^\// || return "Missing or invalid install directory";
if (-r "$opts->{'dir'}/index.php") {
	return "Nextcloud appears to be already installed in the selected directory";
	}
return undef;
}

# script_nextcloud_files(&domain, version, &opts, &upgrade-info)
# Returns a list of files needed by Wordpress, each of which is a hash ref
# containing a name, filename and URL
sub script_nextcloud_files
{
local ($d, $ver, $opts, $upgrade) = @_;
local @files = ( { 'name' => "source",
	   'file' => "nextcloud-$ver.zip",
	   'url' => "https://download.nextcloud.com/server/releases/nextcloud-$ver.zip" } );
return @files;
}

sub script_nextcloud_commands
{
return ("zip");
}

# script_nextcloud_install(&domain, version, &opts, &files, &upgrade-info)
# Actually installs Nextcloud, and returns either 1 and an informational
# message, or 0 and an error
sub script_nextcloud_install
{
local ($d, $version, $opts, $files, $upgrade, $domuser, $dompass) = @_;

# Check DB connection
if ($opts->{'newdb'} && !$upgrade) {
        local $err = &create_script_database($d, $opts->{'db'},
					     { 'charset' => 'utf8' });
        return (0, "Database creation failed : $err") if ($err);
        }
local ($dbtype, $dbname) = split(/_/, $opts->{'db'}, 2);
if ($ver >= 2.0 && $dbtype eq "mysql") {
	$dbtype = "mysqli";
	}
local $dbuser = &mysql_user($d);
local $dbpass = &mysql_pass($d);
local $dbhost = &get_database_host("mysql", $d);
local $dberr = &check_script_db_connection($dbtype, $dbname, $dbuser, $dbpass);
return (0, "Database connection failed : $dberr") if ($dberr);

# Extract tar file to temp dir and copy to target
local $temp = &transname();
local $err = &extract_script_archive($files->{'source'}, $temp, $d,
                                     $opts->{'dir'}, "nextcloud");
$err && return (0, "Failed to extract source : $err");

# Make data dir writable
&make_file_php_writable($d, "$opts->{'dir'}/install/data");

# Return a URL for the user
local $url = &script_path_url($d, $opts);
local $rp = $opts->{'dir'};
$rp =~ s/^$d->{'home'}\///;
my $msg1 = ($upgrade ? "Nextcloud upgrade complete" : "Initial Nextcloud installation complete");
my $msg2 = ($upgrade ? "complete the upgrade process." : "create the administration user. For filling database details provide for name <tt>$dbname</tt>, for user <tt>$dbuser</tt> and for password <tt>$dbpass</tt>.");
return (1, "$msg1. Go to <a target=_blank href='$url'>$url</a> to $msg2<br>", $url);
}

# script_nextcloud_uninstall(&domain, version, &opts)
# Un-installs a Wordpress installation, by deleting the directory and database.
# Returns 1 on success and a message, or 0 on failure and an error
sub script_nextcloud_uninstall
{
local ($d, $version, $opts) = @_;

# Remove all oc_ tables from the database
&cleanup_script_database($d, $opts->{'db'}, "oc_");

# Take out the DB
if ($opts->{'newdb'}) {
        &delete_script_database($d, $opts->{'db'});
        }

# Remove the contents of the target directory
local $derr = &delete_script_install_directory($d, $opts);
return (0, $derr) if ($derr);

return (1, "Nextcloud directory and tables deleted.");
}

# script_nextcloud_latest(version)
# Returns a URL and regular expression or callback func to get the version
sub script_nextcloud_latest
{
local ($ver) = @_;
return ( "https://nextcloud.com/changelog/",
	 "Version ([0-9\\.]+)" );
}

sub script_nextcloud_site
{
return 'http://nextcloud.com/';
}

sub script_nextcloud_passmode
{
return 0;
}

1;