#!/usr/bin/env perl

use strict;
use warnings;

use Test::Exception;
use Test::More;
use File::Spec;

if ( !eval { require MooseX::ConfigFromFile } )
{
    plan skip_all => 'Test requires MooseX::ConfigFromFile';
}
else
{
    plan tests => 25;
}

{
    package App;

    use Moose;
    with 'MooseX::Getopt';
    with 'MooseX::ConfigFromFile';

    has 'config_from_override' => (
        is       => 'ro',
        isa      => 'Bool',
        default  => 0,
    );

    has 'optional_from_config' => (
        is        => 'ro',
        isa       => 'Str',
        required  => 0,
    );

    has 'required_from_config' => (
        is        => 'ro',
        isa       => 'Str',
        required  => 1,
    );

    has 'required_from_argv' => (
        is        => 'ro',
        isa       => 'Str',
        required  => 1,
    );

    sub get_config_from_file
    {
        my ( $class, $file ) = @_;

        my %config = (
            required_from_config => 'from_config_1',
            optional_from_config => 'from_config_2',
        );

        my $cpath = File::Spec->canonpath('/notused/default');
        if ( $file ne $cpath ) {
            $config{config_from_override} = 1;
        }

        return \%config;
    }
}

{
    package App::DefaultConfigFile;

    use Moose;
    extends 'App';

    has '+configfile' => (
        default => File::Spec->canonpath('/notused/default'),
    );
}

# No config specified
{
    local @ARGV = qw( --required_from_argv 1 );

    throws_ok { App->new_with_options } qr/Required option missing: required_from_config/;

    {
        my $app = App::DefaultConfigFile->new_with_options;
        isa_ok( $app, 'App::DefaultConfigFile' );
        app_ok( $app );

        ok(  !$app->config_from_override,
            '... config_from_override false as expected' );

        is( $app->configfile, File::Spec->canonpath('/notused/default'),
            '... configfile is /notused/default as expected' );
    }
}

# Config specified
{
    local @ARGV = qw( --configfile /notused --required_from_argv 1 );

    {
        my $app = App->new_with_options;
        isa_ok( $app, 'App' );
        app_ok( $app );
    }

    {
        my $app = App::DefaultConfigFile->new_with_options;
        isa_ok( $app, 'App::DefaultConfigFile' );
        app_ok( $app );

        ok( $app->config_from_override,
             '... config_from_override true as expected' );

        is( $app->configfile, File::Spec->canonpath('/notused'),
            '... configfile is /notused as expected' );
    }
}

# Required arg not supplied from cmdline
{
    local @ARGV = qw( --configfile /notused );
    throws_ok { App->new_with_options } qr/Required option missing: required_from_argv/;
}

# Config file value overriden from cmdline
{
    local @ARGV = qw( --configfile /notused --required_from_argv 1 --required_from_config override );

    my $app = App->new_with_options;
    isa_ok( $app, 'App' );

    is( $app->required_from_config, 'override',
        '... required_from_config is override as expected' );

    is( $app->optional_from_config, 'from_config_2',
        '... optional_from_config is from_config_2 as expected' );
}

# No config file
{
    local @ARGV = qw( --required_from_argv 1 --required_from_config noconfig );

    my $app = App->new_with_options;
    isa_ok( $app, 'App' );

    is( $app->required_from_config, 'noconfig',
        '... required_from_config is noconfig as expected' );

    ok( !defined $app->optional_from_config,
        '... optional_from_config is undef as expected' );
}

{
    package BaseApp::WithConfig;
    use Moose;
    with 'MooseX::ConfigFromFile';

    sub get_config_from_file { return {}; }
}

{
    package DerivedApp::Getopt;
    use Moose;
    extends 'BaseApp::WithConfig';
    with 'MooseX::Getopt';
}

# With DerivedApp, the Getopt role was applied at a different level
# than the ConfigFromFile role
{
    lives_ok { DerivedApp::Getopt->new_with_options } 'Can create DerivedApp';
}

sub app_ok {
    my $app = shift;

    is( $app->required_from_config, 'from_config_1',
        '... required_from_config is from_config_1 as expected' );

    is( $app->optional_from_config, 'from_config_2',
        '... optional_from_config is from_config_2 as expected' );

    is( $app->required_from_argv, '1',
        '... required_from_argv is 1 as expected' );
}