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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);

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;
my $dbh = adminsuidsetup($user);

#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;

my @bugfix = ();

if (dbdef->table('cust_main')->column('agent_custid')) { 
  push @bugfix,
    "UPDATE cust_main SET agent_custid = NULL where agent_custid = ''";

  push @bugfix,
    "UPDATE h_cust_main SET agent_custid = NULL where agent_custid = ''"
      if (dbdef->table('h_cust_main')); 
}

if ( $DRY_RUN ) {
  print
    join(";\n", @bugfix, dbdef->sql_update_schema( dbdef_dist(datasrc), $dbh ) ). ";\n";
  exit;
} else {
  foreach my $statement ( @bugfix ) {
    $dbh->do( $statement )
      or die "Error: ". $dbh->errstr. "\n executing: $statement";
  }

  dbdef->update_schema( dbdef_dist(datasrc), $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;

if ( $dbh->{Driver}->{Name} =~ /^mysql/i ) {

  my $sth = $dbh->prepare(
    "SELECT COUNT(*) FROM duplicate_lock WHERE lockname = 'svc_acct'"
  ) or die $dbh->errstr;

  $sth->execute or die $sth->errstr;

  unless ( $sth->fetchrow_arrayref->[0] ) {

    $sth = $dbh->prepare(
      "INSERT INTO duplicate_lock ( lockname ) VALUES ( 'svc_acct' )"
    ) or die $dbh->errstr;

    $sth->execute or die $sth->errstr;

  }
}

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

dbdef_create($dbh, $dbdef_file);

$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.

  [ -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