// Copyright (c) 2014-2015, The Monero Project
// 
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// permitted provided that the following conditions are met:
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//    conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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#include <iostream>
#include <vector>

#include "gtest/gtest.h"

#include "common/dns_utils.h"

TEST(DNSResolver, IPv4Success)
{
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv4("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("93.184.216.119", ips[0].c_str());

  ips = tools::DNSResolver::instance().get_ipv4("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("93.184.216.119", ips[0].c_str());
}

TEST(DNSResolver, IPv4Failure)
{
  // guaranteed by IANA/ICANN/RFC to be invalid
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv4("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());

  ips = tools::DNSResolver::instance().get_ipv4("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());
}

// It would be great to include an IPv6 test and assume it'll pass, but not every ISP / resolver plays nicely with IPv6;)
/*TEST(DNSResolver, IPv6Success)
{
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv6("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("2606:2800:220:6d:26bf:1447:1097:aa7", ips[0].c_str());

  ips = tools::DNSResolver::instance().get_ipv6("example.com", avail, valid);

  ASSERT_EQ(1, ips.size());

  ASSERT_STREQ("2606:2800:220:6d:26bf:1447:1097:aa7", ips[0].c_str());
}*/

TEST(DNSResolver, IPv6Failure)
{
  // guaranteed by IANA/ICANN/RFC to be invalid
  tools::DNSResolver resolver;

  bool avail, valid;

  auto ips = resolver.get_ipv6("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());

  ips = tools::DNSResolver::instance().get_ipv6("example.invalid", avail, valid);

  ASSERT_EQ(0, ips.size());
}

TEST(DNSResolver, GetTXTRecord)
{
  bool avail, valid;

  std::vector<std::string> records = tools::DNSResolver::instance().get_txt_record("donate.getmonero.org", avail, valid);

  EXPECT_NE(0, records.size());

  for (auto& rec : records)
  {
    std::cout << "TXT record for donate.getmonero.org: " << rec << std::endl;
  }
}