#!/usr/local/bin/perl -w
# vim: set ft=perl:
# This test creates an HTML::Parser instance and uses it to selectively
# parse the output of the HTML producer.  Rather than try to ensure
# that the produced HTML turns into a particular parse tree or anything
# like that, it performs some heuristics on the output.
use strict;
use vars qw(%HANDLERS);
use Test::More;
use Test::SQL::Translator qw(maybe_plan);
use SQL::Translator;
BEGIN {
  maybe_plan(5, 'CGI', 'HTML::Parser', 'SQL::Translator::Parser::MySQL', 'SQL::Translator::Producer::HTML');
}
my ($p, $tables, $classes);
$p = HTML::Parser->new(api_version => 3);
$p->strict_names(1);
my $create = q|
CREATE TABLE foo (
    int id PRIMARY KEY AUTO_INCREMENT NOT NULL,
    name VARCHAR(255)
);
|;
my $tr     = SQL::Translator->new(parser => 'MySQL', producer => 'HTML');
my $parsed = $tr->translate(data => $create) or die $tr->error;
my $status;
eval { $status = $p->parse($parsed); };
if ($@) {
  daig $@;
  fail("Unable to parse the output!");
}
# General
ok($parsed, "Parsed table OK");
ok($status, "Parsed HTML OK");
$p->handler(start => @{ $HANDLERS{count_tables} });
$p->parse($parsed);
is($tables, 3, "One table in the SQL produces 3 <table> tags");
$tables = $classes = 0;
$p->handler(start => @{ $HANDLERS{count_classes} });
$p->parse($parsed);
is($classes, 1, "One 'LinkTable' class");
$tables = $classes = 0;
$p->handler(start => @{ $HANDLERS{sqlfairy} });
$p->parse($parsed);
is($classes, 1, "SQLfairy plug is alive and well ");
$tables = $classes = 0;
# Handler functions for the parser
BEGIN {
  %HANDLERS = (
    count_tables => [
      sub {
        my $tagname = shift;
        $tables++ if ($tagname eq 'table');
      },
      'tagname',
    ],
    count_classes => [
      sub {
        my ($tagname, $attr) = @_;
        if ( $tagname eq 'table'
          && $attr->{'class'}
          && $attr->{'class'} eq 'LinkTable') {
          $classes++;
        }
      },
      'tagname,attr',
    ],
    sqlfairy => [
      sub {
        my ($tagname, $attr) = @_;
        if ( $tagname eq 'a'
          && $attr->{'href'}
          && $attr->{'href'} =~ /sqlfairy/i) {
          $classes++;
        }
      },
      'tagname,attr',
    ],
  );
}