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#!/usr/bin/perl -w

use strict;
use vars qw($opt_d $opt_q $opt_v);
use vars qw($DEBUG $DRY_RUN);
use Getopt::Std;
use DBIx::DBSchema 0.31;
use FS::UID qw(adminsuidsetup checkeuid datasrc );  #getsecrets);
use FS::CurrentUser;
use FS::Schema qw( dbdef dbdef_dist reload_dbdef );
use FS::Misc::prune qw(prune_applications);
use FS::Conf;
use FS::Record qw(qsearch);

die "Not running uid freeside!" unless checkeuid();

getopts("dq");

$DEBUG = !$opt_q;
#$DEBUG = $opt_v;

$DRY_RUN = $opt_d;

my $user = shift or die &usage;
$FS::CurrentUser::upgrade_hack = 1;
$FS::UID::callback_hack = 1;
my $dbh = adminsuidsetup($user);
$FS::UID::callback_hack = 0;

#needs to match FS::Schema...
my $dbdef_file = "%%%FREESIDE_CONF%%%/dbdef.". datasrc;

dbdef_create($dbh, $dbdef_file);

delete $FS::Schema::dbdef_cache{$dbdef_file}; #force an actual reload
reload_dbdef($dbdef_file);

$DBIx::DBSchema::DEBUG = $DEBUG;
$DBIx::DBSchema::Table::DEBUG = $DEBUG;
$DBIx::DBSchema::Index::DEBUG = $DEBUG;

if ( $DRY_RUN ) {
  print join(";\n", dbdef->sql_update_schema( dbdef_dist, $dbh ) ). ";\n";
  exit;
} else {
  dbdef->update_schema( dbdef_dist, $dbh );
}

my $hashref = {};
$hashref->{dry_run} = 1 if $DRY_RUN;
$hashref->{debug} = 1 if $DEBUG;
print join "\n", prune_applications($hashref);
print "\n" if $DRY_RUN;


$dbh->commit or die $dbh->errstr;

dbdef_create($dbh, $dbdef_file);

$dbh->disconnect or die $dbh->errstr;

delete $FS::Schema::dbdef_cache{$dbdef_file}; #force an actual reload
$FS::UID::AutoCommit = 1;
$FS::UID::callback_hack = 1;
$dbh = adminsuidsetup($user);
$FS::UID::callback_hack = 0;
unless ( $DRY_RUN ) {
  my $dir = "%%%FREESIDE_CONF%%%/conf.". datasrc;
  if (!scalar(qsearch('conf', {}))) {
    my $error = FS::Conf::init_config($dir);
    if ($error) {
      warn "CONFIGURATION UPGRADE FAILED\n";
      $dbh->rollback or die $dbh->errstr;
      die $error;
    }
  }
}
$dbh->commit or die $dbh->errstr;
$dbh->disconnect or die $dbh->errstr;

###

sub dbdef_create { # reverse engineer the schema from the DB and save to file
  my( $dbh, $file ) = @_;
  my $dbdef = new_native DBIx::DBSchema $dbh;
  $dbdef->save($file);
}

sub usage {
  die "Usage:\n  freeside-upgrade [ -d ] [ -q | -v ] user\n"; 
}

=head1 NAME

freeside-upgrade - Upgrades database schema for new freeside verisons.

=head1 SYNOPSIS

  freeside-upgrade [ -d ] [ -q | -v ]

=head1 DESCRIPTION

Reads your existing database schema and updates it to match the current schema,
adding any columns or tables necessary.

Also performs other upgrade functions:

=over 4

=item Calls FS:: Misc::prune::prune_applications (probably unnecessary every upgrade, but simply won't find any records to change)

=item If necessary, moves your configuration information from the filesystem in /usr/local/etc/freeside/conf.<datasrc> to the database.

=back

  [ -d ]: Dry run; output SQL statements (to STDOUT) only, but do not execute
          them.

  [ -q ]: Run quietly.  This may become the default at some point.

  [ -v ]: Run verbosely, sending debugging information to STDERR.  This is the
          current default.

=head1 SEE ALSO

=cut