use strict;
use warnings FATAL => 'all';

use Apache::Test;
use Apache::TestRequest;
use Apache::TestUtil;

## mod_negotiation test (see extra.conf.in)

my ($en, $fr, $de, $fu, $bu, $zh) = qw(en fr de fu bu zh-TW);

my @language = ($en, $fr, $de, $fu);
if (have_min_apache_version("2.4.38")) {
  push @language, $zh;
}

my @ct_tests = (
    # [ Accept header, Expected response ]
    [ "*/*",       "text/plain" ],
    [ "text/*",    "text/plain" ],
    [ "text/html", "text/html"  ],
    [ "image/*",   "image/jpeg" ],
    [ "image/gif", "image/gif"  ],

    [ "*",         "text/plain" ], # Dubious

    # Tests which expect a 406 response
    [ "",     undef ],
    [ "*bad", undef ],
    [ "/*",   undef ],
    [ "*/",   undef ],
    [ "te/*", undef ],
);

my $tests = (@language * 3) + (@language * @language * 5) + (scalar @ct_tests)
            + 7;

plan tests => $tests, need 
     need_module('negotiation') && need_cgi && need_module('mime');

my $actual;

#XXX: this is silly; need a better way to be portable
sub my_chomp {
    $actual =~ s/[\r\n]+$//s;
}

foreach (@language) {

    ## verify that the correct default language content is returned
    $actual = GET_BODY "/modules/negotiation/$_/";
    print "# GET /modules/negotiation/$_/\n";
    my_chomp();
    ok t_cmp($actual, "index.html.$_",
             "Verify correct default language for index.$_.foo");

    $actual = GET_BODY "/modules/negotiation/$_/compressed/";
    print "# GET /modules/negotiation/$_/compressed/\n";
    my_chomp();
    ok t_cmp($actual, "index.html.$_.gz",
             "Verify correct default language for index.$_.foo.gz");

    $actual = GET_BODY "/modules/negotiation/$_/two/index";
    print "# GET /modules/negotiation/$_/two/index\n";
    my_chomp();
    ok t_cmp($actual, "index.$_.html",
             "Verify correct default language for index.$_.html");

    foreach my $ext (@language) {

        ## verify that you can explicitly request all language files.
        my $resp = GET("/modules/negotiation/$_/index.html.$ext");
        print "# GET /modules/negotiation/$_/index.html.$ext\n";
        ok t_cmp($resp->code,
                 200,
                 "Explicitly request $_/index.html.$ext");
        $resp = GET("/modules/negotiation/$_/two/index.$ext.html");
        print "# GET /modules/negotiation/$_/two/index.$ext.html\n";
        ok t_cmp($resp->code,
                 200,
                 "Explicitly request $_/two/index.$ext.html");

        ## verify that even tho there is a default language,
        ## the Accept-Language header is obeyed when present.
        $actual = GET_BODY "/modules/negotiation/$_/",
            'Accept-Language' => $ext;
        print "# GET /modules/negotiation/$_/\n# Accept-Language: $ext\n";
        my_chomp();
        ok t_cmp($actual, "index.html.$ext",
                 "Verify with a default language Accept-Language still obeyed");

        $actual = GET_BODY "/modules/negotiation/$_/compressed/",
            'Accept-Language' => $ext;
        print "# GET /modules/negotiation/$_/compressed/\n# Accept-Language: $ext\n";
        my_chomp();
        ok t_cmp($actual, "index.html.$ext.gz",
                 "Verify with a default language Accept-Language still ".
                   "obeyed (compression on)");

        $actual = GET_BODY "/modules/negotiation/$_/two/index",
            'Accept-Language' => $ext;
        print "# GET /modules/negotiation/$_/two/index\n# Accept-Language: $ext\n";
        my_chomp();
        ok t_cmp($actual, "index.$ext.html",
                 "Verify with a default language Accept-Language still obeyed");

    }
}

## more complex requests ##

## 'fu' has a quality rating of 0.9 which is higher than the rest
## we expect Apache to return the 'fu' content.
$actual = GET_BODY "/modules/negotiation/$en/",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2";
print "# GET /modules/negotiation/$en/\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2\n";
my_chomp();
ok t_cmp($actual, "index.html.$fu",
         "fu has a higher quality rating, so we expect fu");

$actual = GET_BODY "/modules/negotiation/$en/two/index",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2";
print "# GET /modules/negotiation/$en/two/index\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2\n";
my_chomp();
ok t_cmp($actual, "index.$fu.html",
         "fu has a higher quality rating, so we expect fu");

$actual = GET_BODY "/modules/negotiation/$en/compressed/",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2";
print "# GET /modules/negotiation/$en/compressed/\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $fu; q=0.9, $de; q=0.2\n";
my_chomp();
ok t_cmp($actual, "index.html.$fu.gz",
         "fu has a higher quality rating, so we expect fu");

## 'bu' has the highest quality rating, but is non-existant,
## so we expect the next highest rated 'fr' content to be returned.
$actual = GET_BODY "/modules/negotiation/$en/",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $bu; q=1.0";
print "# GET /modules/negotiation/$en/\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $bu; q=1.0\n";
my_chomp();
ok t_cmp($actual, "index.html.$fr",
         "bu has the highest quality but is non-existant, so fr is next best");

$actual = GET_BODY "/modules/negotiation/$en/two/index",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $bu; q=1.0";
print "# GET /modules/negotiation/$en/two/index\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $bu; q=1.0\n";
my_chomp();
ok t_cmp($actual, "index.$fr.html",
         "bu has the highest quality but is non-existant, so fr is next best");

$actual = GET_BODY "/modules/negotiation/$en/compressed/",
    'Accept-Language' => "$en; q=0.1, $fr; q=0.4, $bu; q=1.0";
print "# GET /modules/negotiation/$en/compressed/\n# Accept-Language: $en; q=0.1, $fr; q=0.4, $bu; q=1.0\n";
my_chomp();
ok t_cmp($actual, "index.html.$fr.gz",
         "bu has the highest quality but is non-existant, so fr is next best");

$actual = GET_BODY "/modules/negotiation/query/test?foo";
print "# GET /modules/negotiation/query/test?foo\n";
my_chomp();
ok t_cmp($actual, "QUERY_STRING --> foo",
         "The type map gives the script the highest quality;"
         . "\nthe request included a query string");

## Content-Type tests

foreach my $test (@ct_tests) {
    my $accept   = $test->[0];
    my $expected = $test->[1];

    my $r = GET "/modules/negotiation/content-type/test.var",
                Accept => $accept;

    if ($expected) {
        $actual = $r->content;

        # Strip whitespace from the body (we pad the variant map with spaces).
        $actual =~ s/^\s+|\s+$//g;

        ok t_cmp $expected, $actual, "should send correct variant";
    }
    else {
        ok t_cmp $r->code, 406, "expect Not Acceptable for Accept: $accept";
    }
}