#!/usr/bin/perl
# vim: set ft=perl:
use strict;
use warnings;
use SQL::Translator;
use File::Spec::Functions qw(catfile updir tmpdir);
use FindBin               qw($Bin);
use Test::More;
use Test::Differences;
use Test::SQL::Translator qw(maybe_plan);
plan tests => 4;
use_ok('SQL::Translator::Diff') or die "Cannot continue\n";
my $tr = SQL::Translator->new;
my ($source_schema, $target_schema) = map {
  my $t = SQL::Translator->new;
  $t->parser('YAML')
      or die $tr->error;
  my $out = $t->translate(catfile($Bin, qw/data diff/, $_))
      or die $tr->error;
  my $schema = $t->schema;
  unless ($schema->name) {
    $schema->name($_);
  }
  ($schema);
} (qw/create1.yml create2.yml/);
# Test for differences
my $out = SQL::Translator::Diff::schema_diff(
  $source_schema,
  'SQLite',
  $target_schema,
  'SQLite',
  {
    no_batch_alters        => 1,
    ignore_missing_methods => 1,
    output_db              => 'SQLite',
  }
);
eq_or_diff($out, <<'## END OF DIFF', "Diff as expected");
-- Convert schema 'create1.yml' to 'create2.yml':;
BEGIN;
CREATE TABLE added (
  id int(11)
);
ALTER TABLE old_name RENAME TO new_name;
DROP INDEX FK5302D47D93FE702E;
DROP INDEX UC_age_name;
DROP INDEX u_name;
-- SQL::Translator::Producer::SQLite cant drop_field;
ALTER TABLE new_name ADD COLUMN new_field int;
ALTER TABLE person ADD COLUMN is_rock_star tinyint(4) DEFAULT 1;
-- SQL::Translator::Producer::SQLite cant alter_field;
-- SQL::Translator::Producer::SQLite cant rename_field;
CREATE UNIQUE INDEX unique_name ON person (name);
CREATE UNIQUE INDEX UC_person_id ON person (person_id);
CREATE UNIQUE INDEX UC_age_name ON person (age, name);
DROP TABLE deleted;
COMMIT;
## END OF DIFF
$out = SQL::Translator::Diff::schema_diff(
  $source_schema,
  'SQLite',
  $target_schema,
  'SQLite',
  {
    ignore_index_names      => 1,
    ignore_constraint_names => 1,
    output_db               => 'SQLite',
  }
);
eq_or_diff($out, <<'## END OF DIFF', "Diff as expected");
-- Convert schema 'create1.yml' to 'create2.yml':;
BEGIN;
CREATE TABLE added (
  id int(11)
);
CREATE TEMPORARY TABLE employee_temp_alter (
  position varchar(50) NOT NULL,
  employee_id int(11) NOT NULL,
  PRIMARY KEY (position, employee_id),
  FOREIGN KEY (employee_id) REFERENCES person(person_id)
);
INSERT INTO employee_temp_alter( position, employee_id) SELECT position, employee_id FROM employee;
DROP TABLE employee;
CREATE TABLE employee (
  position varchar(50) NOT NULL,
  employee_id int(11) NOT NULL,
  PRIMARY KEY (position, employee_id),
  FOREIGN KEY (employee_id) REFERENCES person(person_id)
);
INSERT INTO employee SELECT position, employee_id FROM employee_temp_alter;
DROP TABLE employee_temp_alter;
ALTER TABLE old_name RENAME TO new_name;
ALTER TABLE new_name ADD COLUMN new_field int;
CREATE TEMPORARY TABLE person_temp_alter (
  person_id INTEGER PRIMARY KEY NOT NULL,
  name varchar(20) NOT NULL,
  age int(11) DEFAULT 18,
  weight double(11,2),
  iq int(11) DEFAULT 0,
  is_rock_star tinyint(4) DEFAULT 1,
  value double(8,2) DEFAULT 0.00,
  physical_description text
);
INSERT INTO person_temp_alter( person_id, name, age, weight, iq, value, physical_description) SELECT person_id, name, age, weight, iq, value, description FROM person;
DROP TABLE person;
CREATE TABLE person (
  person_id INTEGER PRIMARY KEY NOT NULL,
  name varchar(20) NOT NULL,
  age int(11) DEFAULT 18,
  weight double(11,2),
  iq int(11) DEFAULT 0,
  is_rock_star tinyint(4) DEFAULT 1,
  value double(8,2) DEFAULT 0.00,
  physical_description text
);
CREATE UNIQUE INDEX unique_name02 ON person (name);
CREATE UNIQUE INDEX UC_person_id02 ON person (person_id);
CREATE UNIQUE INDEX UC_age_name02 ON person (age, name);
INSERT INTO person SELECT person_id, name, age, weight, iq, is_rock_star, value, physical_description FROM person_temp_alter;
DROP TABLE person_temp_alter;
DROP TABLE deleted;
COMMIT;
## END OF DIFF
# Note the 02 in the 3 names above (end of diff) are an implementation
# quirk - there is nothing to reset the global seen-names register
# The rewrite should abolish this altogether, and carry the register in
# the main schema object
# Test for sameness
$out = SQL::Translator::Diff::schema_diff($source_schema, 'MySQL', $source_schema, 'MySQL');
eq_or_diff($out, <<'## END OF DIFF', "No differences found");
-- Convert schema 'create1.yml' to 'create1.yml':;
-- No differences found;
## END OF DIFF