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#!/usr/bin/perl -Tw

use strict;
use DBI;
use DBIx::DBSchema 0.21;
use DBIx::DBSchema::Table;
use DBIx::DBSchema::Column;
use DBIx::DBSchema::ColGroup::Unique;
use DBIx::DBSchema::ColGroup::Index;
use FS::UID qw(adminsuidsetup);
use FS::Record qw(dbdef);

my $user = shift or die &usage;
my $dbh = adminsuidsetup $user;

my $schema = dbdef();

#false laziness w/fs-setup
my @tables = scalar(@ARGV)
               ? @ARGV
               : grep { ! /^h_/ } $schema->tables;
foreach my $table ( @tables ) {
  warn "creating history table for $table\n";
  my $tableobj = $schema->table($table)
    or die "unknown table $table (did you run dbdef-create?)\n";
  my $h_tableobj = DBIx::DBSchema::Table->new( {
    name        => "h_$table",
    primary_key => 'historynum',
    unique      => DBIx::DBSchema::ColGroup::Unique->new( [] ),
    'index'     => DBIx::DBSchema::ColGroup::Index->new( [
                     @{$tableobj->unique->lol_ref},
                     @{$tableobj->index->lol_ref}
                   ] ),
    columns     => [
                     DBIx::DBSchema::Column->new( {
                       'name'    => 'historynum',
                       'type'    => 'serial',
                       'null'    => 'NOT NULL',
                       'length'  => '',
                       'default' => '',
                       'local'   => '',
                     } ),
                     DBIx::DBSchema::Column->new( {
                       'name'    => 'history_date',
                       'type'    => 'int',
                       'null'    => 'NULL',
                       'length'  => '',
                       'default' => '',
                       'local'   => '',
                     } ),
                     DBIx::DBSchema::Column->new( {
                       'name'    => 'history_user',
                       'type'    => 'varchar',
                       'null'    => 'NOT NULL',
                       'length'  => '80',
                       'default' => '',
                       'local'   => '',
                     } ),
                     DBIx::DBSchema::Column->new( {
                       'name'    => 'history_action',
                       'type'    => 'varchar',
                       'null'    => 'NOT NULL',
                       'length'  => '80',
                       'default' => '',
                       'local'   => '',
                     } ),
                     map {
                       my $column = $tableobj->column($_);
                       $column->type('int')
                         if $column->type eq 'serial';
                       $column->default('')
                         if $column->default =~ /^nextval\(/i;
                       ( my $local = $column->local ) =~ s/AUTO_INCREMENT//i;
                       $column->local($local);
                       $column;
                     } $tableobj->columns
                   ],
  } );
  foreach my $statement ( $h_tableobj->sql_create_table($dbh) ) {
    $dbh->do( $statement )
      or die "CREATE error: ". $dbh->errstr. "\ndoing statement: $statement";
  }

}

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

sub usage {
  die "Usage:\n  create-history-tables user [ table table ... ] \n";
}