{
  package    # hide from PAUSE
    DBICTest::Schema::ArtistFQN;

  use base 'DBIx::Class::Core';

  __PACKAGE__->table(
      defined $ENV{DBICTEST_ORA_USER}
      ? $ENV{DBICTEST_ORA_USER} . '.artist'
      : 'artist'
  );
  __PACKAGE__->add_columns(
      'artistid' => {
          data_type         => 'integer',
          is_auto_increment => 1,
      },
      'name' => {
          data_type   => 'varchar',
          size        => 100,
          is_nullable => 1,
      },
  );
  __PACKAGE__->set_primary_key('artistid');

  1;
}

use strict;
use warnings;

use Test::Exception;
use Test::More;

use lib qw(t/lib);
use DBICTest;
use DBIC::SqlMakerTest;

my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_ORA_${_}" } qw/DSN USER PASS/};

plan skip_all => 'Set $ENV{DBICTEST_ORA_DSN}, _USER and _PASS to run this test. ' .
  'Warning: This test drops and creates tables called \'artist\', \'cd\', \'track\' and \'sequence_test\''.
  ' as well as following sequences: \'pkid1_seq\', \'pkid2_seq\' and \'nonpkid_seq\''
  unless ($dsn && $user && $pass);

DBICTest::Schema->load_classes('ArtistFQN');
my $schema = DBICTest::Schema->connect($dsn, $user, $pass);

my $dbh = $schema->storage->dbh;

eval {
  $dbh->do("DROP SEQUENCE artist_seq");
  $dbh->do("DROP SEQUENCE cd_seq");
  $dbh->do("DROP SEQUENCE track_seq");
  $dbh->do("DROP SEQUENCE pkid1_seq");
  $dbh->do("DROP SEQUENCE pkid2_seq");
  $dbh->do("DROP SEQUENCE nonpkid_seq");
  $dbh->do("DROP TABLE artist");
  $dbh->do("DROP TABLE sequence_test");
  $dbh->do("DROP TABLE track");
  $dbh->do("DROP TABLE cd");
};
$dbh->do("CREATE SEQUENCE artist_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
$dbh->do("CREATE SEQUENCE cd_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
$dbh->do("CREATE SEQUENCE track_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
$dbh->do("CREATE SEQUENCE pkid1_seq START WITH 1 MAXVALUE 999999 MINVALUE 0");
$dbh->do("CREATE SEQUENCE pkid2_seq START WITH 10 MAXVALUE 999999 MINVALUE 0");
$dbh->do("CREATE SEQUENCE nonpkid_seq START WITH 20 MAXVALUE 999999 MINVALUE 0");

$dbh->do("CREATE TABLE artist (artistid NUMBER(12), parentid NUMBER(12), name VARCHAR(255), rank NUMBER(38), charfield VARCHAR2(10))");
$dbh->do("ALTER TABLE artist ADD (CONSTRAINT artist_pk PRIMARY KEY (artistid))");

$dbh->do("CREATE TABLE sequence_test (pkid1 NUMBER(12), pkid2 NUMBER(12), nonpkid NUMBER(12), name VARCHAR(255))");
$dbh->do("ALTER TABLE sequence_test ADD (CONSTRAINT sequence_test_constraint PRIMARY KEY (pkid1, pkid2))");

$dbh->do("CREATE TABLE cd (cdid NUMBER(12), artist NUMBER(12), title VARCHAR(255), year VARCHAR(4), genreid NUMBER(12), single_track NUMBER(12))");
$dbh->do("ALTER TABLE cd ADD (CONSTRAINT cd_pk PRIMARY KEY (cdid))");

$dbh->do("CREATE TABLE track (trackid NUMBER(12), cd NUMBER(12) REFERENCES cd(cdid) DEFERRABLE, position NUMBER(12), title VARCHAR(255), last_updated_on DATE, last_updated_at DATE, small_dt DATE)");
$dbh->do("ALTER TABLE track ADD (CONSTRAINT track_pk PRIMARY KEY (trackid))");

$dbh->do(qq{
  CREATE OR REPLACE TRIGGER artist_insert_trg
  BEFORE INSERT ON artist
  FOR EACH ROW
  BEGIN
    IF :new.artistid IS NULL THEN
      SELECT artist_seq.nextval
      INTO :new.artistid
      FROM DUAL;
    END IF;
  END;
});
$dbh->do(qq{
  CREATE OR REPLACE TRIGGER cd_insert_trg
  BEFORE INSERT OR UPDATE ON cd
  FOR EACH ROW
  BEGIN
    IF :new.cdid IS NULL THEN
      SELECT cd_seq.nextval
      INTO :new.cdid
      FROM DUAL;
    END IF;
  END;
});
$dbh->do(qq{
  CREATE OR REPLACE TRIGGER cd_insert_trg
  BEFORE INSERT ON cd
  FOR EACH ROW
  BEGIN
    IF :new.cdid IS NULL THEN
      SELECT cd_seq.nextval
      INTO :new.cdid
      FROM DUAL;
    END IF;
  END;
});
$dbh->do(qq{
  CREATE OR REPLACE TRIGGER track_insert_trg
  BEFORE INSERT ON track
  FOR EACH ROW
  BEGIN
    IF :new.trackid IS NULL THEN
      SELECT track_seq.nextval
      INTO :new.trackid
      FROM DUAL;
    END IF;
  END;
});

{
    # Swiped from t/bindtype_columns.t to avoid creating my own Resultset.

    local $SIG{__WARN__} = sub {};
    eval { $dbh->do('DROP TABLE bindtype_test') };

    $dbh->do(qq[
        CREATE TABLE bindtype_test
        (
            id              integer      NOT NULL   PRIMARY KEY,
            bytea           integer      NULL,
            blob            blob         NULL,
            clob            clob         NULL
        )
    ],{ RaiseError => 1, PrintError => 1 });
}

# This is in Core now, but it's here just to test that it doesn't break
$schema->class('Artist')->load_components('PK::Auto');
# These are compat shims for PK::Auto...
$schema->class('CD')->load_components('PK::Auto::Oracle');
$schema->class('Track')->load_components('PK::Auto::Oracle');

# test primary key handling
my $new = $schema->resultset('Artist')->create({ name => 'foo' });
is($new->artistid, 1, "Oracle Auto-PK worked");

my $cd = $schema->resultset('CD')->create({ artist => 1, title => 'EP C', year => '2003' });
is($cd->cdid, 1, "Oracle Auto-PK worked - using scalar ref as table name");

# test again with fully-qualified table name
$new = $schema->resultset('ArtistFQN')->create( { name => 'bar' } );
is( $new->artistid, 2, "Oracle Auto-PK worked with fully-qualified tablename" );

# test rel names over the 30 char limit
my $query = $schema->resultset('Artist')->search({
  artistid => 1 
}, {
  prefetch => 'cds_very_very_very_long_relationship_name'
});

lives_and {
  is $query->first->cds_very_very_very_long_relationship_name->first->cdid, 1
} 'query with rel name over 30 chars survived and worked';

# rel name over 30 char limit with user condition
# This requires walking the SQLA data structure.
{
  local $TODO = 'user condition on rel longer than 30 chars';

  $query = $schema->resultset('Artist')->search({
    'cds_very_very_very_long_relationship_name.title' => 'EP C'
  }, {
    prefetch => 'cds_very_very_very_long_relationship_name'
  });

  lives_and {
    is $query->first->cds_very_very_very_long_relationship_name->first->cdid, 1
  } 'query with rel name over 30 chars and user condition survived and worked';
}

# test join with row count ambiguity

my $track = $schema->resultset('Track')->create({ cd => $cd->cdid,
    position => 1, title => 'Track1' });
my $tjoin = $schema->resultset('Track')->search({ 'me.title' => 'Track1'},
        { join => 'cd',
          rows => 2 }
);

ok(my $row = $tjoin->next);

is($row->title, 'Track1', "ambiguous column ok");

# check count distinct with multiple columns
my $other_track = $schema->resultset('Track')->create({ cd => $cd->cdid, position => 1, title => 'Track2' });

my $tcount = $schema->resultset('Track')->search(
  {},
  {
    select => [ qw/position title/ ],
    distinct => 1,
  }
);
is($tcount->count, 2, 'multiple column COUNT DISTINCT ok');

$tcount = $schema->resultset('Track')->search(
  {},
  {
    columns => [ qw/position title/ ],
    distinct => 1,
  }
);
is($tcount->count, 2, 'multiple column COUNT DISTINCT ok');

$tcount = $schema->resultset('Track')->search(
  {},
  {
     group_by => [ qw/position title/ ]
  }
);
is($tcount->count, 2, 'multiple column COUNT DISTINCT using column syntax ok');

# test LIMIT support
for (1..6) {
    $schema->resultset('Artist')->create({ name => 'Artist ' . $_ });
}
my $it = $schema->resultset('Artist')->search( {},
    { rows => 3,
      offset => 3,
      order_by => 'artistid' }
);
is( $it->count, 3, "LIMIT count ok" );
is( $it->next->name, "Artist 2", "iterator->next ok" );
$it->next;
$it->next;
is( $it->next, undef, "next past end of resultset ok" );

{
  my $rs = $schema->resultset('Track')->search( undef, { columns=>[qw/trackid position/], group_by=> [ qw/trackid position/ ] , rows => 2, offset=>1 });
  my @results = $rs->all;
  is( scalar @results, 1, "Group by with limit OK" );
}

# test with_deferred_fk_checks
lives_ok {
  $schema->storage->with_deferred_fk_checks(sub {
    $schema->resultset('Track')->create({
      trackid => 999, cd => 999, position => 1, title => 'deferred FK track'
    });
    $schema->resultset('CD')->create({
      artist => 1, cdid => 999, year => '2003', title => 'deferred FK cd'
    });
  });
} 'with_deferred_fk_checks code survived';

is eval { $schema->resultset('Track')->find(999)->title }, 'deferred FK track',
   'code in with_deferred_fk_checks worked'; 

throws_ok {
  $schema->resultset('Track')->create({
    trackid => 1, cd => 9999, position => 1, title => 'Track1'
  });
} qr/constraint/i, 'with_deferred_fk_checks is off';

# test auto increment using sequences WITHOUT triggers
for (1..5) {
    my $st = $schema->resultset('SequenceTest')->create({ name => 'foo' });
    is($st->pkid1, $_, "Oracle Auto-PK without trigger: First primary key");
    is($st->pkid2, $_ + 9, "Oracle Auto-PK without trigger: Second primary key");
    is($st->nonpkid, $_ + 19, "Oracle Auto-PK without trigger: Non-primary key");
}
my $st = $schema->resultset('SequenceTest')->create({ name => 'foo', pkid1 => 55 });
is($st->pkid1, 55, "Oracle Auto-PK without trigger: First primary key set manually");

SKIP: {
  my %binstr = ( 'small' => join('', map { chr($_) } ( 1 .. 127 )) );
  $binstr{'large'} = $binstr{'small'} x 1024;

  my $maxloblen = length $binstr{'large'};
  note "Localizing LongReadLen to $maxloblen to avoid truncation of test data";
  local $dbh->{'LongReadLen'} = $maxloblen;

  my $rs = $schema->resultset('BindType');
  my $id = 0;

  if ($DBD::Oracle::VERSION eq '1.23') {
    throws_ok { $rs->create({ id => 1, blob => $binstr{large} }) }
      qr/broken/,
      'throws on blob insert with DBD::Oracle == 1.23';

    skip 'buggy BLOB support in DBD::Oracle 1.23', 7;
  }

  foreach my $type (qw( blob clob )) {
    foreach my $size (qw( small large )) {
      $id++;

      lives_ok { $rs->create( { 'id' => $id, $type => $binstr{$size} } ) }
      "inserted $size $type without dying";

      ok($rs->find($id)->$type eq $binstr{$size}, "verified inserted $size $type" );
    }
  }
}


### test hierarchical queries
if ( $schema->storage->isa('DBIx::Class::Storage::DBI::Oracle::Generic') ) {
    my $source = $schema->source('Artist');

    $source->add_column( 'parentid' );

    $source->add_relationship('children', 'DBICTest::Schema::Artist',
        { 'foreign.parentid' => 'self.artistid' },
        {
            accessor => 'multi',
            join_type => 'LEFT',
            cascade_delete => 1,
            cascade_copy => 1,
        } );
    $source->add_relationship('parent', 'DBICTest::Schema::Artist',
        { 'foreign.artistid' => 'self.parentid' },
        { accessor => 'single' } );
    DBICTest::Schema::Artist->add_column( 'parentid' );
    DBICTest::Schema::Artist->has_many(
        children => 'DBICTest::Schema::Artist',
        { 'foreign.parentid' => 'self.artistid' }
    );
    DBICTest::Schema::Artist->belongs_to(
        parent => 'DBICTest::Schema::Artist',
        { 'foreign.artistid' => 'self.parentid' }
    );

    $schema->resultset('Artist')->create ({
        name => 'root',
        rank => 1,
        cds => [],
        children => [
            {
                name => 'child1',
                rank => 2,
                children => [
                    {
                        name => 'grandchild',
                        rank => 3,
                        cds => [
                            {
                                title => "grandchilds's cd" ,
                                year => '2008',
                                tracks => [
                                    {
                                        position => 1,
                                        title => 'Track 1 grandchild',
                                    }
                                ],
                            }
                        ],
                        children => [
                            {
                                name => 'greatgrandchild',
                                rank => 3,
                            }
                        ],
                    }
                ],
            },
            {
                name => 'child2',
                rank => 3,
            },
        ],
    });

    $schema->resultset('Artist')->create(
        {
            name     => 'cycle-root',
            children => [
                {
                    name     => 'cycle-child1',
                    children => [ { name => 'cycle-grandchild' } ],
                },
                { name => 'cycle-child2' },
            ],
        }
    );

    $schema->resultset('Artist')->find({ name => 'cycle-root' })
      ->update({ parentid => \'artistid' });

    # select the whole tree
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
            FROM artist me
          START WITH name = ?
          CONNECT BY parentid = PRIOR artistid 
        )',
        [ [ name => 'root'] ],
      );
      is_deeply (
        [ $rs->get_column ('name')->all ],
        [ qw/root child1 grandchild greatgrandchild child2/ ],
        'got artist tree',
      );


      is_same_sql_bind (
        $rs->count_rs->as_query,
        '(
          SELECT COUNT( * )
            FROM artist me
          START WITH name = ?
          CONNECT BY parentid = PRIOR artistid 
        )',
        [ [ name => 'root'] ],
      );

      is( $rs->count, 5, 'Connect By count ok' );
    }

    # use order siblings by statement
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
        order_siblings_by => { -desc => 'name' },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
            FROM artist me
          START WITH name = ?
          CONNECT BY parentid = PRIOR artistid 
          ORDER SIBLINGS BY name DESC
        )',
        [ [ name => 'root'] ],
      );

      is_deeply (
        [ $rs->get_column ('name')->all ],
        [ qw/root child2 child1 grandchild greatgrandchild/ ],
        'Order Siblings By ok',
      );
    }

    # get the root node
    {
      my $rs = $schema->resultset('Artist')->search({ parentid => undef }, {
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
            FROM artist me
          WHERE ( parentid IS NULL )
          START WITH name = ?
          CONNECT BY parentid = PRIOR artistid 
        )',
        [ [ name => 'root'] ],
      );

      is_deeply(
        [ $rs->get_column('name')->all ],
        [ 'root' ],
        'found root node',
      );
    }

    # combine a connect by with a join
    {
      my $rs = $schema->resultset('Artist')->search(
        {'cds.title' => { -like => '%cd'} },
        {
          join => 'cds',
          start_with => { 'me.name' => 'root' },
          connect_by => { parentid => { -prior => \ 'artistid' } },
        }
      );

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
            FROM artist me
            LEFT JOIN cd cds ON cds.artist = me.artistid
          WHERE ( cds.title LIKE ? )
          START WITH me.name = ?
          CONNECT BY parentid = PRIOR artistid 
        )',
        [ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
      );

      is_deeply(
        [ $rs->get_column('name')->all ],
        [ 'grandchild' ],
        'Connect By with a join result name ok'
      );


      is_same_sql_bind (
        $rs->count_rs->as_query,
        '(
          SELECT COUNT( * )
            FROM artist me
            LEFT JOIN cd cds ON cds.artist = me.artistid
          WHERE ( cds.title LIKE ? )
          START WITH me.name = ?
          CONNECT BY parentid = PRIOR artistid 
        )',
        [ [ 'cds.title' => '%cd' ], [ 'me.name' => 'root' ] ],
      );

      is( $rs->count, 1, 'Connect By with a join; count ok' );
    }

    # combine a connect by with order_by
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
        order_by => { -asc => [ 'LEVEL', 'name' ] },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid
            FROM artist me
          START WITH name = ?
          CONNECT BY parentid = PRIOR artistid 
          ORDER BY LEVEL ASC, name ASC
        )',
        [ [ name => 'root' ] ],
      );

      is_deeply (
        [ $rs->get_column ('name')->all ],
        [ qw/root child1 child2 grandchild greatgrandchild/ ],
        'Connect By with a order_by - result name ok'
      );
    }


    # limit a connect by
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
        order_by => { -asc => 'name' },
        rows => 2,
      });

      is_same_sql_bind (
        $rs->as_query,
        '( 
            SELECT artistid, name, rank, charfield, parentid FROM (
                  SELECT artistid, name, rank, charfield, parentid, ROWNUM rownum__index FROM (
                      SELECT 
                          me.artistid,
                          me.name,
                          me.rank,
                          me.charfield,
                          me.parentid 
                      FROM artist me 
                      START WITH name = ? 
                      CONNECT BY parentid = PRIOR artistid
                      ORDER BY name ASC 
                  ) me 
            ) me
            WHERE rownum__index BETWEEN 1 AND 2
        )',
        [ [ name => 'root' ] ],
      );

      is_deeply (
        [ $rs->get_column ('name')->all ],
        [qw/child1 child2/],
        'LIMIT a Connect By query - correct names'
      );

      # TODO: 
      # prints "START WITH name = ? 
      # CONNECT BY artistid = PRIOR parentid "
      # after count_subq, 
      # I will fix this later...
      # 
      is_same_sql_bind (
        $rs->count_rs->as_query,
        '( 
            SELECT COUNT( * ) FROM (
                SELECT artistid FROM (
                    SELECT artistid, ROWNUM rownum__index FROM (
                        SELECT 
                            me.artistid
                        FROM artist me 
                        START WITH name = ? 
                        CONNECT BY parentid = PRIOR artistid
                    ) me
                ) me 
                WHERE rownum__index BETWEEN 1 AND 2
            ) me
        )',
        [ [ name => 'root' ] ],
      );

      is( $rs->count, 2, 'Connect By; LIMIT count ok' );
    }

    # combine a connect_by with group_by and having
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        select => ['count(rank)'],
        start_with => { name => 'root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
        group_by => ['rank'],
        having => { 'count(rank)' => { '<', 2 } },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
            SELECT count(rank)
            FROM artist me
            START WITH name = ?
            CONNECT BY parentid = PRIOR artistid
            GROUP BY rank HAVING count(rank) < ?
        )',
        [ [ name => 'root' ], [ 'count(rank)' => 2 ] ],
      );

      is_deeply (
        [ $rs->get_column ('count(rank)')->all ],
        [1, 1],
        'Group By a Connect By query - correct values'
      );
    }


    # select the whole cycle tree without nocylce
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'cycle-root' },
        connect_by => { parentid => { -prior => \ 'artistid' } },
      });
      eval { $rs->get_column ('name')->all };
      if ( $@ =~ /ORA-01436/ ){ # ORA-01436:  CONNECT BY loop in user data
        pass "connect by initify loop detection without nocycle";
      }else{
        fail "connect by initify loop detection without nocycle, not detected by oracle";
      }
    }

    # select the whole cycle tree with nocylce
    {
      my $rs = $schema->resultset('Artist')->search({}, {
        start_with => { name => 'cycle-root' },
        '+select'  => [ \ 'CONNECT_BY_ISCYCLE' ],
        connect_by_nocycle => { parentid => { -prior => \ 'artistid' } },
      });

      is_same_sql_bind (
        $rs->as_query,
        '(
          SELECT me.artistid, me.name, me.rank, me.charfield, me.parentid, CONNECT_BY_ISCYCLE
            FROM artist me
          START WITH name = ?
          CONNECT BY NOCYCLE parentid = PRIOR artistid 
        )',
        [ [ name => 'cycle-root'] ],
      );
      is_deeply (
        [ $rs->get_column ('name')->all ],
        [ qw/cycle-root cycle-child1 cycle-grandchild cycle-child2/ ],
        'got artist tree with nocycle (name)',
      );
      is_deeply (
        [ $rs->get_column ('CONNECT_BY_ISCYCLE')->all ],
        [ qw/1 0 0 0/ ],
        'got artist tree with nocycle (CONNECT_BY_ISCYCLE)',
      );


      is_same_sql_bind (
        $rs->count_rs->as_query,
        '(
          SELECT COUNT( * )
            FROM artist me
          START WITH name = ?
          CONNECT BY NOCYCLE parentid = PRIOR artistid 
        )',
        [ [ name => 'cycle-root'] ],
      );

      is( $rs->count, 4, 'Connect By Nocycle count ok' );
    }
}

done_testing;

# clean up our mess
END {
    if($schema && ($dbh = $schema->storage->dbh)) {
        $dbh->do("DROP SEQUENCE artist_seq");
        $dbh->do("DROP SEQUENCE cd_seq");
        $dbh->do("DROP SEQUENCE track_seq");
        $dbh->do("DROP SEQUENCE pkid1_seq");
        $dbh->do("DROP SEQUENCE pkid2_seq");
        $dbh->do("DROP SEQUENCE nonpkid_seq");
        $dbh->do("DROP TABLE artist");
        $dbh->do("DROP TABLE sequence_test");
        $dbh->do("DROP TABLE track");
        $dbh->do("DROP TABLE cd");
        $dbh->do("DROP TABLE bindtype_test");
    }
}

