# Test the non-object-oriented interface.
#
# Lots of functionality tests are in this script, because
# this interface is just so dang easy to use.

use Test::More;
use Test::Trap;

eval "use CLI::Startup 'startup'";
plan skip_all => "Can't load CLI::Startup" if $@;

# Test that the sub was imported
ok defined(&startup), "startup() was exported";

# This isn't the version of anything; it's for testing
our $VERSION = 3.1415;

# Print the script version
{
    local @ARGV = ('--version');
    trap { startup({ x => 'dummy option' }) };
    ok $trap->leaveby eq 'exit', "App exits";
    ok $trap->exit == 0, "Exit status 0";
    like $trap->stderr, qr/3\.1415/, "Version was printed";
}

# Clear the version and try again
{
    $VERSION = 0;

    local @ARGV = ('--version');
    trap { startup({ x => 'dummy option' }) };
    ok $trap->leaveby eq 'exit', "App exits";
    ok $trap->exit == 0, "Exit status 0";
    like $trap->stderr, qr/UNKNOWN/, "Version was unknown";
}

# Trivial command-line flag
{
    local @ARGV = ('--verbose');
    my $options = startup({
        verbose => 'Print verbose output',
    });
    ok $options->{verbose} || 0, "--verbose option read correctly";
}

# Bad options cause usage message
{
    my $options;

    local @ARGV = ('--foo');
    trap { startup({ bar => 'bar option' }) };

    ok $trap->exit == 1, "Error status on invalid option";
    like $trap->stdout, qr/usage:/, "Usage message printed";
}

# --help option automatically causes usage message
{
    local @ARGV = ('--help');
    trap { startup({ foo => 'foo option' }) };

    ok $trap->exit == 1, "Correct exit status on --help option";
    like $trap->stdout, qr/usage:/, "Usage message printed";
}

# --help option with custom help text and usage
{
    local @ARGV = ('--help');
    trap { startup({ help => 'custom help', foo => 'bar' })};

    ok $trap->exit == 1, "Correct exit status on --help";
    like $trap->stdout, qr/custom help/, "Custom help message printed";
}

# --rcfile option with rcfile disabled
{
    local @ARGV = ('--rcfile=/foo');
    trap { startup({ rcfile => undef, foo => 'bar' })};

    ok $trap->exit == 1, "Error status with disabled --rcfile";
    like $trap->stdout, qr/usage:/, "Usage message printed";
}

# --write-rcfile option with rcfile diabled
{
    local @ARGV = ('--write-rcfile');
    trap { startup({ 'write-rcfile' => undef, foo => 'bar' }) };

    ok $trap->exit == 1, "Error status with disabled --write-rcfile";
    like $trap->stdout, qr/usage:/, "Usage message printed";
    like $trap->stdout, qr/rcfile/, "--rcfile shown in help";
    unlike $trap->stdout, qr/write-rcfile.*Write options/,
        "--write-rcfile not shown";
}

# --help option defined twice
{
    trap { startup({ help => 'first', 'help=s' => 'second' }) };

    ok $trap->leaveby eq 'die', "Error exit with twice-defined option";
    like $trap->die, qr/defined twice/, "Error message printed";
}

# Invalid prototypes for default options
{
    for my $spec (qw/ help=s write-rcfile=s rcfile=i /)
    {
        trap { startup({ $spec => 'foo', bar => 'baz' }) };

        ok $trap->leaveby eq 'die', "Error exit with invalid spec: $spec";
        like $trap->die, qr/defined incorrectly/i, "Error message printed";
    }
}

# --help text with boolean option
{
    local @ARGV = ('--help');
    trap { startup({ 'x!' => 'negatable option' }) };

    ok $trap->exit == 1, "Exit status";
    like $trap->stdout, qr/Negate this with --no-x/, "Help text";
}

# --help text with aliases
{
    local @ARGV = ('--help');
    trap { startup({ 'x|a|b|c' => 'aliased option' }) };

    ok $trap->exit == 1, "Exit status";
    like $trap->stdout, qr/Aliases: a, b, c/, "Help text";
}

done_testing();