/*
	create tables for test db
*/


--create sequence test_div_seq;
commit;
create domain D_ID as BIGINT;
create domain D_BIGINT as BIGINT;

create table test_div(
 test_div_id D_ID generated always as identity
 , numerator D_BIGINT
 , denominator D_BIGINT
 , result COMPUTED BY ( DIV(numerator, denominator) )
 , constraint pk_test_div_id primary key (test_div_id) using index idx_test_div_id


);

commit;


-- create sequence test_blobs_seq;

create domain D_BLOB as BLOB;
create domain D_DESCRIPTION varchar(255) default 'No description entered' not null ;
create domain D_FILETYPE char(3) default 'BIN' not null check (value in ( 'BIN', 'TXT') );
create domain D_PATH as varchar(8189) default '' not null ;
create domain D_STATUS as CHAR(1) default 'U' not null check (VALUE IN ('U', 'F', 'L', 'W'));
comment on domain D_STATUS is 'unset, failed, loaded, written';

create exception E_BLOB_EXCEPTION '';

create table test_blobs(
 test_blobs_id D_ID generated always as identity
 , description D_DESCRIPTION
 , file_type D_FILETYPE
 , source_file D_PATH
 , source_status D_STATUS
 , source_bytes D_BIGINT
 , target_file D_PATH
 , target_status D_STATUS
 , target_bytes D_BIGINT
 , the_blob D_BLOB
 , constraint pk_test_blobs_id primary key (test_blobs_id) using index idx_test_blobs_id
);

set term ^;
create or alter trigger t_iub_test_blobs for test_blobs before insert or update
as begin

	new.file_type = upper(new.file_type);
	new.source_status = upper(new.source_status);
	new.target_status = upper(new.target_status);

end ^
set term ;^


set term ^;
create or alter procedure load_blob ( a_test_blob_id D_ID )  sql security definer
as
  declare asource_file D_PATH;
  declare oldblob D_BLOB;
  declare newblob D_BLOB;
  declare result D_BIGINT;
  declare status D_STATUS;
begin

	select source_file, the_blob from test_blobs where test_blobs_id = :a_test_blob_id into :asource_file, :oldblob;
	select LoadBlobFromFile( :asource_file ) from rdb$database into :newblob;

	if ( newblob is not null ) then
		status = 'L';
	else
		status = 'F';

	update test_blobs
		set the_blob = :newblob
--		, source_bytes = :result
		, source_status = :status
	where test_blobs_id = :a_test_blob_id;
	when any do begin
		EXCEPTION E_BLOB_EXCEPTION 'Error updating test_blobs';
	end



end ^

set term ;^