use strict;

use warnings;

use Test::More 'no_plan';

use DBIx::Custom::QueryBuilder;

# Function for test name

my $test;

sub test{

    $test = shift;

}

# Variable for test

my $datas;

my $builder;

my $query;

my $ret_val;

my $source;

my $tree;

test "Various source pattern";

$datas = [

    # Basic tests

    {   name            => 'placeholder basic',

        source            => "a {?  k1} b {=  k2} {<> k3} {>  k4} {<  k5} {>= k6} {<= k7} {like k8}", ,

        sql_expected    => "a ? b k2 = ? k3 <> ? k4 > ? k5 < ? k6 >= ? k7 <= ? k8 like ?;",

        columns_expected   => [qw/k1 k2 k3 k4 k5 k6 k7 k8/]

    },

    {

        name            => 'placeholder in',

        source            => "{in k1 3};",

        sql_expected    => "k1 in (?, ?, ?);",

        columns_expected   => [qw/k1 k1 k1/]

    },

    # Table name

    {

        name            => 'placeholder with table name',

        source            => "{= a.k1} {= a.k2}",

        sql_expected    => "a.k1 = ? a.k2 = ?;",

        columns_expected  => [qw/a.k1 a.k2/]

    },

    {   

        name            => 'placeholder in with table name',

        source            => "{in a.k1 2} {in b.k2 2}",

        sql_expected    => "a.k1 in (?, ?) b.k2 in (?, ?);",

        columns_expected  => [qw/a.k1 a.k1 b.k2 b.k2/]

    },

    {

        name            => 'not contain tag',

        source            => "aaa",

        sql_expected    => "aaa;",

        columns_expected  => [],

    }

];

for (my $i = 0; $i < @$datas; $i++) {

    my $data = $datas->[$i];

    my $builder = DBIx::Custom::QueryBuilder->new;

    my $query = $builder->build_query($data->{source});

    is($query->{sql}, $data->{sql_expected}, "$test : $data->{name} : sql");

    is_deeply($query->{columns}, $data->{columns_expected}, "$test : $data->{name} : columns");

}

test 'Original tag processor';

$builder = DBIx::Custom::QueryBuilder->new;

$ret_val = $builder->register_tag_processor(

    p => sub {

        my @args = @_;

        my $expand    = "? $args[0] $args[1]";

        my $columns = [2];

        return [$expand, $columns];

    }

);

$query = $builder->build_query("{p a b}");

is($query->{sql}, "? a b;", "$test : register_tag_processor sql");

is_deeply($query->{columns}, [2], "$test : register_tag_processor columns");

isa_ok($ret_val, 'DBIx::Custom::QueryBuilder');

test "Tag processor error case";

$builder = DBIx::Custom::QueryBuilder->new;

eval{$builder->build_query('{? }')};

like($@, qr/\QColumn name must be specified in tag "{? }"/, "$test : ? not arguments");

eval{$builder->build_query("{a }")};

like($@, qr/\QTag "a" in "{a }" is not registered/, "$test : tag_processor not exist");

$builder->register_tag_processor({

    q => 'string'

});

eval{$builder->build_query("{q}", {})};

like($@, qr/Tag processor "q" must be sub reference/, "$test : tag_processor not code ref");

$builder->register_tag_processor({

   r => sub {} 

});

eval{$builder->build_query("{r}")};

like($@, qr/\QTag processor "r" must return [STRING, ARRAY_REFERENCE]/, "$test : tag processor return noting");

$builder->register_tag_processor({

   s => sub { return ["a", ""]} 

});

eval{$builder->build_query("{s}")};

like($@, qr/\QTag processor "s" must return [STRING, ARRAY_REFERENCE]/, "$test : tag processor return not array columns");

$builder->register_tag_processor(

    t => sub {return ["a", []]}

);

test 'General error case';

$builder = DBIx::Custom::QueryBuilder->new;

$builder->register_tag_processor(

    a => sub {

        return ["? ? ?", ['']];

    }

);

eval{$builder->build_query("{a}")};

like($@, qr/\QPlaceholder count in "? ? ?" must be same as column count 1/, "$test : placeholder count is invalid");

test 'Default tag processor Error case';

eval{$builder->build_query("{= }")};

like($@, qr/Column name must be specified in tag "{= }"/, "$test : basic '=' : key not exist");

eval{$builder->build_query("{in }")};

like($@, qr/Column name and count of values must be specified in tag "{in }"/, "$test : in : key not exist");

eval{$builder->build_query("{in a}")};

like($@, qr/\QColumn name and count of values must be specified in tag "{in }"/,

     "$test : in : key not exist");

eval{$builder->build_query("{in a r}")};

like($@, qr/\QColumn name and count of values must be specified in tag "{in }"/,

     "$test : in : key not exist");

test 'variouse source';

$source = "a {= b} c \\{ \\} {= \\{} {= \\}} d;";

$query = $builder->build_query($source);

is($query->sql, 'a b = ? c { } { = ? } = ? d;', "$test : 1");

$source = "abc;";

$query = $builder->build_query($source);

is($query->sql, 'abc;', "$test : 2");

$source = "{= a}";

$query = $builder->build_query($source);

is($query->sql, 'a = ?;', "$test : 3");

$source = "a {= b} }";

eval{$builder->build_query($source)};

like($@, qr/unexpected "}"/, "$test : error : 1");

$source = "a {= {}";

eval{$builder->build_query($source)};

like($@, qr/unexpected "{"/, "$test : error : 2");